T: git git.infradead.org/battery-2.6.git
S: Maintained
-POWERPC 4xx EMAC DRIVER
-P: Eugene Surovegin
-M: ebs@ebshome.net
-W: http://kernel.ebshome.net/emac/
-L: linuxppc-dev@ozlabs.org
-L: netdev@vger.kernel.org
-S: Maintained
-
PNP SUPPORT
P: Adam Belay
M: ambx1@neo.rr.com
To compile this driver as a module, choose M here. The module will
be called ibmveth.
-source "drivers/net/ibm_emac/Kconfig"
source "drivers/net/ibm_newemac/Kconfig"
config NET_PCI
obj-$(CONFIG_E1000) += e1000/
obj-$(CONFIG_E1000E) += e1000e/
-obj-$(CONFIG_IBM_EMAC) += ibm_emac/
obj-$(CONFIG_IBM_NEW_EMAC) += ibm_newemac/
obj-$(CONFIG_IGB) += igb/
obj-$(CONFIG_IXGBE) += ixgbe/
+++ /dev/null
-config IBM_EMAC
- tristate "PowerPC 4xx on-chip Ethernet support"
- depends on 4xx && !PPC_MERGE
- help
- This driver supports the PowerPC 4xx EMAC family of on-chip
- Ethernet controllers.
-
-config IBM_EMAC_RXB
- int "Number of receive buffers"
- depends on IBM_EMAC
- default "128"
-
-config IBM_EMAC_TXB
- int "Number of transmit buffers"
- depends on IBM_EMAC
- default "64"
-
-config IBM_EMAC_POLL_WEIGHT
- int "MAL NAPI polling weight"
- depends on IBM_EMAC
- default "32"
-
-config IBM_EMAC_RX_COPY_THRESHOLD
- int "RX skb copy threshold (bytes)"
- depends on IBM_EMAC
- default "256"
-
-config IBM_EMAC_RX_SKB_HEADROOM
- int "Additional RX skb headroom (bytes)"
- depends on IBM_EMAC
- default "0"
- help
- Additional receive skb headroom. Note, that driver
- will always reserve at least 2 bytes to make IP header
- aligned, so usually there is no need to add any additional
- headroom.
-
- If unsure, set to 0.
-
-config IBM_EMAC_PHY_RX_CLK_FIX
- bool "PHY Rx clock workaround"
- depends on IBM_EMAC && (405EP || 440GX || 440EP || 440GR)
- help
- Enable this if EMAC attached to a PHY which doesn't generate
- RX clock if there is no link, if this is the case, you will
- see "TX disable timeout" or "RX disable timeout" in the system
- log.
-
- If unsure, say N.
-
-config IBM_EMAC_DEBUG
- bool "Debugging"
- depends on IBM_EMAC
- default n
-
-config IBM_EMAC_ZMII
- bool
- depends on IBM_EMAC && (NP405H || NP405L || 44x)
- default y
-
-config IBM_EMAC_RGMII
- bool
- depends on IBM_EMAC && 440GX
- default y
-
-config IBM_EMAC_TAH
- bool
- depends on IBM_EMAC && 440GX
- default y
-
+++ /dev/null
-#
-# Makefile for the PowerPC 4xx on-chip ethernet driver
-#
-
-obj-$(CONFIG_IBM_EMAC) += ibm_emac.o
-
-ibm_emac-objs := ibm_emac_mal.o ibm_emac_core.o ibm_emac_phy.o
-ibm_emac-$(CONFIG_IBM_EMAC_ZMII) += ibm_emac_zmii.o
-ibm_emac-$(CONFIG_IBM_EMAC_RGMII) += ibm_emac_rgmii.o
-ibm_emac-$(CONFIG_IBM_EMAC_TAH) += ibm_emac_tah.o
-ibm_emac-$(CONFIG_IBM_EMAC_DEBUG) += ibm_emac_debug.o
+++ /dev/null
-/*
- * drivers/net/ibm_emac/ibm_emac.h
- *
- * Register definitions for PowerPC 4xx on-chip ethernet contoller
- *
- * Copyright (c) 2004, 2005 Zultys Technologies.
- * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
- *
- * Based on original work by
- * Matt Porter <mporter@kernel.crashing.org>
- * Armin Kuster <akuster@mvista.com>
- * Copyright 2002-2004 MontaVista Software Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-#ifndef __IBM_EMAC_H_
-#define __IBM_EMAC_H_
-
-#include <linux/types.h>
-
-/* This is a simple check to prevent use of this driver on non-tested SoCs */
-#if !defined(CONFIG_405GP) && !defined(CONFIG_405GPR) && !defined(CONFIG_405EP) && \
- !defined(CONFIG_440GP) && !defined(CONFIG_440GX) && !defined(CONFIG_440SP) && \
- !defined(CONFIG_440EP) && !defined(CONFIG_NP405H) && !defined(CONFIG_440SPE) && \
- !defined(CONFIG_440GR)
-#error "Unknown SoC. Please, check chip user manual and make sure EMAC defines are OK"
-#endif
-
-/* EMAC registers Write Access rules */
-struct emac_regs {
- u32 mr0; /* special */
- u32 mr1; /* Reset */
- u32 tmr0; /* special */
- u32 tmr1; /* special */
- u32 rmr; /* Reset */
- u32 isr; /* Always */
- u32 iser; /* Reset */
- u32 iahr; /* Reset, R, T */
- u32 ialr; /* Reset, R, T */
- u32 vtpid; /* Reset, R, T */
- u32 vtci; /* Reset, R, T */
- u32 ptr; /* Reset, T */
- u32 iaht1; /* Reset, R */
- u32 iaht2; /* Reset, R */
- u32 iaht3; /* Reset, R */
- u32 iaht4; /* Reset, R */
- u32 gaht1; /* Reset, R */
- u32 gaht2; /* Reset, R */
- u32 gaht3; /* Reset, R */
- u32 gaht4; /* Reset, R */
- u32 lsah;
- u32 lsal;
- u32 ipgvr; /* Reset, T */
- u32 stacr; /* special */
- u32 trtr; /* special */
- u32 rwmr; /* Reset */
- u32 octx;
- u32 ocrx;
- u32 ipcr;
-};
-
-#if !defined(CONFIG_IBM_EMAC4)
-#define EMAC_ETHTOOL_REGS_VER 0
-#define EMAC_ETHTOOL_REGS_SIZE (sizeof(struct emac_regs) - sizeof(u32))
-#else
-#define EMAC_ETHTOOL_REGS_VER 1
-#define EMAC_ETHTOOL_REGS_SIZE sizeof(struct emac_regs)
-#endif
-
-/* EMACx_MR0 */
-#define EMAC_MR0_RXI 0x80000000
-#define EMAC_MR0_TXI 0x40000000
-#define EMAC_MR0_SRST 0x20000000
-#define EMAC_MR0_TXE 0x10000000
-#define EMAC_MR0_RXE 0x08000000
-#define EMAC_MR0_WKE 0x04000000
-
-/* EMACx_MR1 */
-#define EMAC_MR1_FDE 0x80000000
-#define EMAC_MR1_ILE 0x40000000
-#define EMAC_MR1_VLE 0x20000000
-#define EMAC_MR1_EIFC 0x10000000
-#define EMAC_MR1_APP 0x08000000
-#define EMAC_MR1_IST 0x01000000
-
-#define EMAC_MR1_MF_MASK 0x00c00000
-#define EMAC_MR1_MF_10 0x00000000
-#define EMAC_MR1_MF_100 0x00400000
-#if !defined(CONFIG_IBM_EMAC4)
-#define EMAC_MR1_MF_1000 0x00000000
-#define EMAC_MR1_MF_1000GPCS 0x00000000
-#define EMAC_MR1_MF_IPPA(id) 0x00000000
-#else
-#define EMAC_MR1_MF_1000 0x00800000
-#define EMAC_MR1_MF_1000GPCS 0x00c00000
-#define EMAC_MR1_MF_IPPA(id) (((id) & 0x1f) << 6)
-#endif
-
-#define EMAC_TX_FIFO_SIZE 2048
-
-#if !defined(CONFIG_IBM_EMAC4)
-#define EMAC_MR1_RFS_4K 0x00300000
-#define EMAC_MR1_RFS_16K 0x00000000
-#define EMAC_RX_FIFO_SIZE(gige) 4096
-#define EMAC_MR1_TFS_2K 0x00080000
-#define EMAC_MR1_TR0_MULT 0x00008000
-#define EMAC_MR1_JPSM 0x00000000
-#define EMAC_MR1_MWSW_001 0x00000000
-#define EMAC_MR1_BASE(opb) (EMAC_MR1_TFS_2K | EMAC_MR1_TR0_MULT)
-#else
-#define EMAC_MR1_RFS_4K 0x00180000
-#define EMAC_MR1_RFS_16K 0x00280000
-#define EMAC_RX_FIFO_SIZE(gige) ((gige) ? 16384 : 4096)
-#define EMAC_MR1_TFS_2K 0x00020000
-#define EMAC_MR1_TR 0x00008000
-#define EMAC_MR1_MWSW_001 0x00001000
-#define EMAC_MR1_JPSM 0x00000800
-#define EMAC_MR1_OBCI_MASK 0x00000038
-#define EMAC_MR1_OBCI_50 0x00000000
-#define EMAC_MR1_OBCI_66 0x00000008
-#define EMAC_MR1_OBCI_83 0x00000010
-#define EMAC_MR1_OBCI_100 0x00000018
-#define EMAC_MR1_OBCI_100P 0x00000020
-#define EMAC_MR1_OBCI(freq) ((freq) <= 50 ? EMAC_MR1_OBCI_50 : \
- (freq) <= 66 ? EMAC_MR1_OBCI_66 : \
- (freq) <= 83 ? EMAC_MR1_OBCI_83 : \
- (freq) <= 100 ? EMAC_MR1_OBCI_100 : EMAC_MR1_OBCI_100P)
-#define EMAC_MR1_BASE(opb) (EMAC_MR1_TFS_2K | EMAC_MR1_TR | \
- EMAC_MR1_OBCI(opb))
-#endif
-
-/* EMACx_TMR0 */
-#define EMAC_TMR0_GNP 0x80000000
-#if !defined(CONFIG_IBM_EMAC4)
-#define EMAC_TMR0_DEFAULT 0x00000000
-#else
-#define EMAC_TMR0_TFAE_2_32 0x00000001
-#define EMAC_TMR0_TFAE_4_64 0x00000002
-#define EMAC_TMR0_TFAE_8_128 0x00000003
-#define EMAC_TMR0_TFAE_16_256 0x00000004
-#define EMAC_TMR0_TFAE_32_512 0x00000005
-#define EMAC_TMR0_TFAE_64_1024 0x00000006
-#define EMAC_TMR0_TFAE_128_2048 0x00000007
-#define EMAC_TMR0_DEFAULT EMAC_TMR0_TFAE_2_32
-#endif
-#define EMAC_TMR0_XMIT (EMAC_TMR0_GNP | EMAC_TMR0_DEFAULT)
-
-/* EMACx_TMR1 */
-
-/* IBM manuals are not very clear here.
- * This is my interpretation of how things are. --ebs
- */
-#if defined(CONFIG_40x)
-#define EMAC_FIFO_ENTRY_SIZE 8
-#define EMAC_MAL_BURST_SIZE (16 * 4)
-#else
-#define EMAC_FIFO_ENTRY_SIZE 16
-#define EMAC_MAL_BURST_SIZE (64 * 4)
-#endif
-
-#if !defined(CONFIG_IBM_EMAC4)
-#define EMAC_TMR1(l,h) (((l) << 27) | (((h) & 0xff) << 16))
-#else
-#define EMAC_TMR1(l,h) (((l) << 27) | (((h) & 0x3ff) << 14))
-#endif
-
-/* EMACx_RMR */
-#define EMAC_RMR_SP 0x80000000
-#define EMAC_RMR_SFCS 0x40000000
-#define EMAC_RMR_RRP 0x20000000
-#define EMAC_RMR_RFP 0x10000000
-#define EMAC_RMR_ROP 0x08000000
-#define EMAC_RMR_RPIR 0x04000000
-#define EMAC_RMR_PPP 0x02000000
-#define EMAC_RMR_PME 0x01000000
-#define EMAC_RMR_PMME 0x00800000
-#define EMAC_RMR_IAE 0x00400000
-#define EMAC_RMR_MIAE 0x00200000
-#define EMAC_RMR_BAE 0x00100000
-#define EMAC_RMR_MAE 0x00080000
-#if !defined(CONFIG_IBM_EMAC4)
-#define EMAC_RMR_BASE 0x00000000
-#else
-#define EMAC_RMR_RFAF_2_32 0x00000001
-#define EMAC_RMR_RFAF_4_64 0x00000002
-#define EMAC_RMR_RFAF_8_128 0x00000003
-#define EMAC_RMR_RFAF_16_256 0x00000004
-#define EMAC_RMR_RFAF_32_512 0x00000005
-#define EMAC_RMR_RFAF_64_1024 0x00000006
-#define EMAC_RMR_RFAF_128_2048 0x00000007
-#define EMAC_RMR_BASE EMAC_RMR_RFAF_128_2048
-#endif
-
-/* EMACx_ISR & EMACx_ISER */
-#if !defined(CONFIG_IBM_EMAC4)
-#define EMAC_ISR_TXPE 0x00000000
-#define EMAC_ISR_RXPE 0x00000000
-#define EMAC_ISR_TXUE 0x00000000
-#define EMAC_ISR_RXOE 0x00000000
-#else
-#define EMAC_ISR_TXPE 0x20000000
-#define EMAC_ISR_RXPE 0x10000000
-#define EMAC_ISR_TXUE 0x08000000
-#define EMAC_ISR_RXOE 0x04000000
-#endif
-#define EMAC_ISR_OVR 0x02000000
-#define EMAC_ISR_PP 0x01000000
-#define EMAC_ISR_BP 0x00800000
-#define EMAC_ISR_RP 0x00400000
-#define EMAC_ISR_SE 0x00200000
-#define EMAC_ISR_ALE 0x00100000
-#define EMAC_ISR_BFCS 0x00080000
-#define EMAC_ISR_PTLE 0x00040000
-#define EMAC_ISR_ORE 0x00020000
-#define EMAC_ISR_IRE 0x00010000
-#define EMAC_ISR_SQE 0x00000080
-#define EMAC_ISR_TE 0x00000040
-#define EMAC_ISR_MOS 0x00000002
-#define EMAC_ISR_MOF 0x00000001
-
-/* EMACx_STACR */
-#define EMAC_STACR_PHYD_MASK 0xffff
-#define EMAC_STACR_PHYD_SHIFT 16
-#define EMAC_STACR_OC 0x00008000
-#define EMAC_STACR_PHYE 0x00004000
-#define EMAC_STACR_STAC_MASK 0x00003000
-#define EMAC_STACR_STAC_READ 0x00001000
-#define EMAC_STACR_STAC_WRITE 0x00002000
-#if !defined(CONFIG_IBM_EMAC4)
-#define EMAC_STACR_OPBC_MASK 0x00000C00
-#define EMAC_STACR_OPBC_50 0x00000000
-#define EMAC_STACR_OPBC_66 0x00000400
-#define EMAC_STACR_OPBC_83 0x00000800
-#define EMAC_STACR_OPBC_100 0x00000C00
-#define EMAC_STACR_OPBC(freq) ((freq) <= 50 ? EMAC_STACR_OPBC_50 : \
- (freq) <= 66 ? EMAC_STACR_OPBC_66 : \
- (freq) <= 83 ? EMAC_STACR_OPBC_83 : EMAC_STACR_OPBC_100)
-#define EMAC_STACR_BASE(opb) EMAC_STACR_OPBC(opb)
-#else
-#define EMAC_STACR_BASE(opb) 0x00000000
-#endif
-#define EMAC_STACR_PCDA_MASK 0x1f
-#define EMAC_STACR_PCDA_SHIFT 5
-#define EMAC_STACR_PRA_MASK 0x1f
-
-/*
- * For the 440SPe, AMCC inexplicably changed the polarity of
- * the "operation complete" bit in the MII control register.
- */
-#if defined(CONFIG_440SPE)
-static inline int emac_phy_done(u32 stacr)
-{
- return !(stacr & EMAC_STACR_OC);
-};
-#define EMAC_STACR_START EMAC_STACR_OC
-
-#else /* CONFIG_440SPE */
-static inline int emac_phy_done(u32 stacr)
-{
- return stacr & EMAC_STACR_OC;
-};
-#define EMAC_STACR_START 0
-#endif /* !CONFIG_440SPE */
-
-/* EMACx_TRTR */
-#if !defined(CONFIG_IBM_EMAC4)
-#define EMAC_TRTR_SHIFT 27
-#else
-#define EMAC_TRTR_SHIFT 24
-#endif
-#define EMAC_TRTR(size) ((((size) >> 6) - 1) << EMAC_TRTR_SHIFT)
-
-/* EMACx_RWMR */
-#if !defined(CONFIG_IBM_EMAC4)
-#define EMAC_RWMR(l,h) (((l) << 23) | ( ((h) & 0x1ff) << 7))
-#else
-#define EMAC_RWMR(l,h) (((l) << 22) | ( ((h) & 0x3ff) << 6))
-#endif
-
-/* EMAC specific TX descriptor control fields (write access) */
-#define EMAC_TX_CTRL_GFCS 0x0200
-#define EMAC_TX_CTRL_GP 0x0100
-#define EMAC_TX_CTRL_ISA 0x0080
-#define EMAC_TX_CTRL_RSA 0x0040
-#define EMAC_TX_CTRL_IVT 0x0020
-#define EMAC_TX_CTRL_RVT 0x0010
-#define EMAC_TX_CTRL_TAH_CSUM 0x000e
-
-/* EMAC specific TX descriptor status fields (read access) */
-#define EMAC_TX_ST_BFCS 0x0200
-#define EMAC_TX_ST_LCS 0x0080
-#define EMAC_TX_ST_ED 0x0040
-#define EMAC_TX_ST_EC 0x0020
-#define EMAC_TX_ST_LC 0x0010
-#define EMAC_TX_ST_MC 0x0008
-#define EMAC_TX_ST_SC 0x0004
-#define EMAC_TX_ST_UR 0x0002
-#define EMAC_TX_ST_SQE 0x0001
-#if !defined(CONFIG_IBM_EMAC_TAH)
-#define EMAC_IS_BAD_TX(v) ((v) & (EMAC_TX_ST_LCS | EMAC_TX_ST_ED | \
- EMAC_TX_ST_EC | EMAC_TX_ST_LC | \
- EMAC_TX_ST_MC | EMAC_TX_ST_UR))
-#else
-#define EMAC_IS_BAD_TX(v) ((v) & (EMAC_TX_ST_LCS | EMAC_TX_ST_ED | \
- EMAC_TX_ST_EC | EMAC_TX_ST_LC))
-#endif
-
-/* EMAC specific RX descriptor status fields (read access) */
-#define EMAC_RX_ST_OE 0x0200
-#define EMAC_RX_ST_PP 0x0100
-#define EMAC_RX_ST_BP 0x0080
-#define EMAC_RX_ST_RP 0x0040
-#define EMAC_RX_ST_SE 0x0020
-#define EMAC_RX_ST_AE 0x0010
-#define EMAC_RX_ST_BFCS 0x0008
-#define EMAC_RX_ST_PTL 0x0004
-#define EMAC_RX_ST_ORE 0x0002
-#define EMAC_RX_ST_IRE 0x0001
-#define EMAC_RX_TAH_BAD_CSUM 0x0003
-#define EMAC_BAD_RX_MASK (EMAC_RX_ST_OE | EMAC_RX_ST_BP | \
- EMAC_RX_ST_RP | EMAC_RX_ST_SE | \
- EMAC_RX_ST_AE | EMAC_RX_ST_BFCS | \
- EMAC_RX_ST_PTL | EMAC_RX_ST_ORE | \
- EMAC_RX_ST_IRE )
-#endif /* __IBM_EMAC_H_ */
+++ /dev/null
-/*
- * drivers/net/ibm_emac/ibm_emac_core.c
- *
- * Driver for PowerPC 4xx on-chip ethernet controller.
- *
- * Copyright (c) 2004, 2005 Zultys Technologies.
- * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
- *
- * Based on original work by
- * Matt Porter <mporter@kernel.crashing.org>
- * (c) 2003 Benjamin Herrenschmidt <benh@kernel.crashing.org>
- * Armin Kuster <akuster@mvista.com>
- * Johnnie Peters <jpeters@mvista.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/errno.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/skbuff.h>
-#include <linux/crc32.h>
-#include <linux/ethtool.h>
-#include <linux/mii.h>
-#include <linux/bitops.h>
-
-#include <asm/processor.h>
-#include <asm/io.h>
-#include <asm/dma.h>
-#include <asm/uaccess.h>
-#include <asm/ocp.h>
-
-#include "ibm_emac_core.h"
-#include "ibm_emac_debug.h"
-
-/*
- * Lack of dma_unmap_???? calls is intentional.
- *
- * API-correct usage requires additional support state information to be
- * maintained for every RX and TX buffer descriptor (BD). Unfortunately, due to
- * EMAC design (e.g. TX buffer passed from network stack can be split into
- * several BDs, dma_map_single/dma_map_page can be used to map particular BD),
- * maintaining such information will add additional overhead.
- * Current DMA API implementation for 4xx processors only ensures cache coherency
- * and dma_unmap_???? routines are empty and are likely to stay this way.
- * I decided to omit dma_unmap_??? calls because I don't want to add additional
- * complexity just for the sake of following some abstract API, when it doesn't
- * add any real benefit to the driver. I understand that this decision maybe
- * controversial, but I really tried to make code API-correct and efficient
- * at the same time and didn't come up with code I liked :(. --ebs
- */
-
-#define DRV_NAME "emac"
-#define DRV_VERSION "3.54"
-#define DRV_DESC "PPC 4xx OCP EMAC driver"
-
-MODULE_DESCRIPTION(DRV_DESC);
-MODULE_AUTHOR
- ("Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>");
-MODULE_LICENSE("GPL");
-
-/* minimum number of free TX descriptors required to wake up TX process */
-#define EMAC_TX_WAKEUP_THRESH (NUM_TX_BUFF / 4)
-
-/* If packet size is less than this number, we allocate small skb and copy packet
- * contents into it instead of just sending original big skb up
- */
-#define EMAC_RX_COPY_THRESH CONFIG_IBM_EMAC_RX_COPY_THRESHOLD
-
-/* Since multiple EMACs share MDIO lines in various ways, we need
- * to avoid re-using the same PHY ID in cases where the arch didn't
- * setup precise phy_map entries
- */
-static u32 busy_phy_map;
-
-#if defined(CONFIG_IBM_EMAC_PHY_RX_CLK_FIX) && \
- (defined(CONFIG_405EP) || defined(CONFIG_440EP) || defined(CONFIG_440GR))
-/* 405EP has "EMAC to PHY Control Register" (CPC0_EPCTL) which can help us
- * with PHY RX clock problem.
- * 440EP/440GR has more sane SDR0_MFR register implementation than 440GX, which
- * also allows controlling each EMAC clock
- */
-static inline void EMAC_RX_CLK_TX(int idx)
-{
- unsigned long flags;
- local_irq_save(flags);
-
-#if defined(CONFIG_405EP)
- mtdcr(0xf3, mfdcr(0xf3) | (1 << idx));
-#else /* CONFIG_440EP || CONFIG_440GR */
- SDR_WRITE(DCRN_SDR_MFR, SDR_READ(DCRN_SDR_MFR) | (0x08000000 >> idx));
-#endif
-
- local_irq_restore(flags);
-}
-
-static inline void EMAC_RX_CLK_DEFAULT(int idx)
-{
- unsigned long flags;
- local_irq_save(flags);
-
-#if defined(CONFIG_405EP)
- mtdcr(0xf3, mfdcr(0xf3) & ~(1 << idx));
-#else /* CONFIG_440EP */
- SDR_WRITE(DCRN_SDR_MFR, SDR_READ(DCRN_SDR_MFR) & ~(0x08000000 >> idx));
-#endif
-
- local_irq_restore(flags);
-}
-#else
-#define EMAC_RX_CLK_TX(idx) ((void)0)
-#define EMAC_RX_CLK_DEFAULT(idx) ((void)0)
-#endif
-
-#if defined(CONFIG_IBM_EMAC_PHY_RX_CLK_FIX) && defined(CONFIG_440GX)
-/* We can switch Ethernet clock to the internal source through SDR0_MFR[ECS],
- * unfortunately this is less flexible than 440EP case, because it's a global
- * setting for all EMACs, therefore we do this clock trick only during probe.
- */
-#define EMAC_CLK_INTERNAL SDR_WRITE(DCRN_SDR_MFR, \
- SDR_READ(DCRN_SDR_MFR) | 0x08000000)
-#define EMAC_CLK_EXTERNAL SDR_WRITE(DCRN_SDR_MFR, \
- SDR_READ(DCRN_SDR_MFR) & ~0x08000000)
-#else
-#define EMAC_CLK_INTERNAL ((void)0)
-#define EMAC_CLK_EXTERNAL ((void)0)
-#endif
-
-/* I don't want to litter system log with timeout errors
- * when we have brain-damaged PHY.
- */
-static inline void emac_report_timeout_error(struct ocp_enet_private *dev,
- const char *error)
-{
-#if defined(CONFIG_IBM_EMAC_PHY_RX_CLK_FIX)
- DBG("%d: %s" NL, dev->def->index, error);
-#else
- if (net_ratelimit())
- printk(KERN_ERR "emac%d: %s\n", dev->def->index, error);
-#endif
-}
-
-/* PHY polling intervals */
-#define PHY_POLL_LINK_ON HZ
-#define PHY_POLL_LINK_OFF (HZ / 5)
-
-/* Graceful stop timeouts in us.
- * We should allow up to 1 frame time (full-duplex, ignoring collisions)
- */
-#define STOP_TIMEOUT_10 1230
-#define STOP_TIMEOUT_100 124
-#define STOP_TIMEOUT_1000 13
-#define STOP_TIMEOUT_1000_JUMBO 73
-
-/* Please, keep in sync with struct ibm_emac_stats/ibm_emac_error_stats */
-static const char emac_stats_keys[EMAC_ETHTOOL_STATS_COUNT][ETH_GSTRING_LEN] = {
- "rx_packets", "rx_bytes", "tx_packets", "tx_bytes", "rx_packets_csum",
- "tx_packets_csum", "tx_undo", "rx_dropped_stack", "rx_dropped_oom",
- "rx_dropped_error", "rx_dropped_resize", "rx_dropped_mtu",
- "rx_stopped", "rx_bd_errors", "rx_bd_overrun", "rx_bd_bad_packet",
- "rx_bd_runt_packet", "rx_bd_short_event", "rx_bd_alignment_error",
- "rx_bd_bad_fcs", "rx_bd_packet_too_long", "rx_bd_out_of_range",
- "rx_bd_in_range", "rx_parity", "rx_fifo_overrun", "rx_overrun",
- "rx_bad_packet", "rx_runt_packet", "rx_short_event",
- "rx_alignment_error", "rx_bad_fcs", "rx_packet_too_long",
- "rx_out_of_range", "rx_in_range", "tx_dropped", "tx_bd_errors",
- "tx_bd_bad_fcs", "tx_bd_carrier_loss", "tx_bd_excessive_deferral",
- "tx_bd_excessive_collisions", "tx_bd_late_collision",
- "tx_bd_multple_collisions", "tx_bd_single_collision",
- "tx_bd_underrun", "tx_bd_sqe", "tx_parity", "tx_underrun", "tx_sqe",
- "tx_errors"
-};
-
-static irqreturn_t emac_irq(int irq, void *dev_instance);
-static void emac_clean_tx_ring(struct ocp_enet_private *dev);
-
-static inline int emac_phy_supports_gige(int phy_mode)
-{
- return phy_mode == PHY_MODE_GMII ||
- phy_mode == PHY_MODE_RGMII ||
- phy_mode == PHY_MODE_TBI ||
- phy_mode == PHY_MODE_RTBI;
-}
-
-static inline int emac_phy_gpcs(int phy_mode)
-{
- return phy_mode == PHY_MODE_TBI ||
- phy_mode == PHY_MODE_RTBI;
-}
-
-static inline void emac_tx_enable(struct ocp_enet_private *dev)
-{
- struct emac_regs __iomem *p = dev->emacp;
- unsigned long flags;
- u32 r;
-
- local_irq_save(flags);
-
- DBG("%d: tx_enable" NL, dev->def->index);
-
- r = in_be32(&p->mr0);
- if (!(r & EMAC_MR0_TXE))
- out_be32(&p->mr0, r | EMAC_MR0_TXE);
- local_irq_restore(flags);
-}
-
-static void emac_tx_disable(struct ocp_enet_private *dev)
-{
- struct emac_regs __iomem *p = dev->emacp;
- unsigned long flags;
- u32 r;
-
- local_irq_save(flags);
-
- DBG("%d: tx_disable" NL, dev->def->index);
-
- r = in_be32(&p->mr0);
- if (r & EMAC_MR0_TXE) {
- int n = dev->stop_timeout;
- out_be32(&p->mr0, r & ~EMAC_MR0_TXE);
- while (!(in_be32(&p->mr0) & EMAC_MR0_TXI) && n) {
- udelay(1);
- --n;
- }
- if (unlikely(!n))
- emac_report_timeout_error(dev, "TX disable timeout");
- }
- local_irq_restore(flags);
-}
-
-static void emac_rx_enable(struct ocp_enet_private *dev)
-{
- struct emac_regs __iomem *p = dev->emacp;
- unsigned long flags;
- u32 r;
-
- local_irq_save(flags);
- if (unlikely(dev->commac.rx_stopped))
- goto out;
-
- DBG("%d: rx_enable" NL, dev->def->index);
-
- r = in_be32(&p->mr0);
- if (!(r & EMAC_MR0_RXE)) {
- if (unlikely(!(r & EMAC_MR0_RXI))) {
- /* Wait if previous async disable is still in progress */
- int n = dev->stop_timeout;
- while (!(r = in_be32(&p->mr0) & EMAC_MR0_RXI) && n) {
- udelay(1);
- --n;
- }
- if (unlikely(!n))
- emac_report_timeout_error(dev,
- "RX disable timeout");
- }
- out_be32(&p->mr0, r | EMAC_MR0_RXE);
- }
- out:
- local_irq_restore(flags);
-}
-
-static void emac_rx_disable(struct ocp_enet_private *dev)
-{
- struct emac_regs __iomem *p = dev->emacp;
- unsigned long flags;
- u32 r;
-
- local_irq_save(flags);
-
- DBG("%d: rx_disable" NL, dev->def->index);
-
- r = in_be32(&p->mr0);
- if (r & EMAC_MR0_RXE) {
- int n = dev->stop_timeout;
- out_be32(&p->mr0, r & ~EMAC_MR0_RXE);
- while (!(in_be32(&p->mr0) & EMAC_MR0_RXI) && n) {
- udelay(1);
- --n;
- }
- if (unlikely(!n))
- emac_report_timeout_error(dev, "RX disable timeout");
- }
- local_irq_restore(flags);
-}
-
-static inline void emac_rx_disable_async(struct ocp_enet_private *dev)
-{
- struct emac_regs __iomem *p = dev->emacp;
- unsigned long flags;
- u32 r;
-
- local_irq_save(flags);
-
- DBG("%d: rx_disable_async" NL, dev->def->index);
-
- r = in_be32(&p->mr0);
- if (r & EMAC_MR0_RXE)
- out_be32(&p->mr0, r & ~EMAC_MR0_RXE);
- local_irq_restore(flags);
-}
-
-static int emac_reset(struct ocp_enet_private *dev)
-{
- struct emac_regs __iomem *p = dev->emacp;
- unsigned long flags;
- int n = 20;
-
- DBG("%d: reset" NL, dev->def->index);
-
- local_irq_save(flags);
-
- if (!dev->reset_failed) {
- /* 40x erratum suggests stopping RX channel before reset,
- * we stop TX as well
- */
- emac_rx_disable(dev);
- emac_tx_disable(dev);
- }
-
- out_be32(&p->mr0, EMAC_MR0_SRST);
- while ((in_be32(&p->mr0) & EMAC_MR0_SRST) && n)
- --n;
- local_irq_restore(flags);
-
- if (n) {
- dev->reset_failed = 0;
- return 0;
- } else {
- emac_report_timeout_error(dev, "reset timeout");
- dev->reset_failed = 1;
- return -ETIMEDOUT;
- }
-}
-
-static void emac_hash_mc(struct ocp_enet_private *dev)
-{
- struct emac_regs __iomem *p = dev->emacp;
- u16 gaht[4] = { 0 };
- struct dev_mc_list *dmi;
-
- DBG("%d: hash_mc %d" NL, dev->def->index, dev->ndev->mc_count);
-
- for (dmi = dev->ndev->mc_list; dmi; dmi = dmi->next) {
- int bit;
- DECLARE_MAC_BUF(mac);
- DBG2("%d: mc %s" NL,
- dev->def->index, print_mac(mac, dmi->dmi_addr));
-
- bit = 63 - (ether_crc(ETH_ALEN, dmi->dmi_addr) >> 26);
- gaht[bit >> 4] |= 0x8000 >> (bit & 0x0f);
- }
- out_be32(&p->gaht1, gaht[0]);
- out_be32(&p->gaht2, gaht[1]);
- out_be32(&p->gaht3, gaht[2]);
- out_be32(&p->gaht4, gaht[3]);
-}
-
-static inline u32 emac_iff2rmr(struct net_device *ndev)
-{
- u32 r = EMAC_RMR_SP | EMAC_RMR_SFCS | EMAC_RMR_IAE | EMAC_RMR_BAE |
- EMAC_RMR_BASE;
-
- if (ndev->flags & IFF_PROMISC)
- r |= EMAC_RMR_PME;
- else if (ndev->flags & IFF_ALLMULTI || ndev->mc_count > 32)
- r |= EMAC_RMR_PMME;
- else if (ndev->mc_count > 0)
- r |= EMAC_RMR_MAE;
-
- return r;
-}
-
-static inline int emac_opb_mhz(void)
-{
- return (ocp_sys_info.opb_bus_freq + 500000) / 1000000;
-}
-
-/* BHs disabled */
-static int emac_configure(struct ocp_enet_private *dev)
-{
- struct emac_regs __iomem *p = dev->emacp;
- struct net_device *ndev = dev->ndev;
- int gige;
- u32 r;
-
- DBG("%d: configure" NL, dev->def->index);
-
- if (emac_reset(dev) < 0)
- return -ETIMEDOUT;
-
- tah_reset(dev->tah_dev);
-
- /* Mode register */
- r = EMAC_MR1_BASE(emac_opb_mhz()) | EMAC_MR1_VLE | EMAC_MR1_IST;
- if (dev->phy.duplex == DUPLEX_FULL)
- r |= EMAC_MR1_FDE | EMAC_MR1_MWSW_001;
- dev->stop_timeout = STOP_TIMEOUT_10;
- switch (dev->phy.speed) {
- case SPEED_1000:
- if (emac_phy_gpcs(dev->phy.mode)) {
- r |= EMAC_MR1_MF_1000GPCS |
- EMAC_MR1_MF_IPPA(dev->phy.address);
-
- /* Put some arbitrary OUI, Manuf & Rev IDs so we can
- * identify this GPCS PHY later.
- */
- out_be32(&p->ipcr, 0xdeadbeef);
- } else
- r |= EMAC_MR1_MF_1000;
- r |= EMAC_MR1_RFS_16K;
- gige = 1;
-
- if (dev->ndev->mtu > ETH_DATA_LEN) {
- r |= EMAC_MR1_JPSM;
- dev->stop_timeout = STOP_TIMEOUT_1000_JUMBO;
- } else
- dev->stop_timeout = STOP_TIMEOUT_1000;
- break;
- case SPEED_100:
- r |= EMAC_MR1_MF_100;
- dev->stop_timeout = STOP_TIMEOUT_100;
- /* Fall through */
- default:
- r |= EMAC_MR1_RFS_4K;
- gige = 0;
- break;
- }
-
- if (dev->rgmii_dev)
- rgmii_set_speed(dev->rgmii_dev, dev->rgmii_input,
- dev->phy.speed);
- else
- zmii_set_speed(dev->zmii_dev, dev->zmii_input, dev->phy.speed);
-
-#if !defined(CONFIG_40x)
- /* on 40x erratum forces us to NOT use integrated flow control,
- * let's hope it works on 44x ;)
- */
- if (dev->phy.duplex == DUPLEX_FULL) {
- if (dev->phy.pause)
- r |= EMAC_MR1_EIFC | EMAC_MR1_APP;
- else if (dev->phy.asym_pause)
- r |= EMAC_MR1_APP;
- }
-#endif
- out_be32(&p->mr1, r);
-
- /* Set individual MAC address */
- out_be32(&p->iahr, (ndev->dev_addr[0] << 8) | ndev->dev_addr[1]);
- out_be32(&p->ialr, (ndev->dev_addr[2] << 24) |
- (ndev->dev_addr[3] << 16) | (ndev->dev_addr[4] << 8) |
- ndev->dev_addr[5]);
-
- /* VLAN Tag Protocol ID */
- out_be32(&p->vtpid, 0x8100);
-
- /* Receive mode register */
- r = emac_iff2rmr(ndev);
- if (r & EMAC_RMR_MAE)
- emac_hash_mc(dev);
- out_be32(&p->rmr, r);
-
- /* FIFOs thresholds */
- r = EMAC_TMR1((EMAC_MAL_BURST_SIZE / EMAC_FIFO_ENTRY_SIZE) + 1,
- EMAC_TX_FIFO_SIZE / 2 / EMAC_FIFO_ENTRY_SIZE);
- out_be32(&p->tmr1, r);
- out_be32(&p->trtr, EMAC_TRTR(EMAC_TX_FIFO_SIZE / 2));
-
- /* PAUSE frame is sent when RX FIFO reaches its high-water mark,
- there should be still enough space in FIFO to allow the our link
- partner time to process this frame and also time to send PAUSE
- frame itself.
-
- Here is the worst case scenario for the RX FIFO "headroom"
- (from "The Switch Book") (100Mbps, without preamble, inter-frame gap):
-
- 1) One maximum-length frame on TX 1522 bytes
- 2) One PAUSE frame time 64 bytes
- 3) PAUSE frame decode time allowance 64 bytes
- 4) One maximum-length frame on RX 1522 bytes
- 5) Round-trip propagation delay of the link (100Mb) 15 bytes
- ----------
- 3187 bytes
-
- I chose to set high-water mark to RX_FIFO_SIZE / 4 (1024 bytes)
- low-water mark to RX_FIFO_SIZE / 8 (512 bytes)
- */
- r = EMAC_RWMR(EMAC_RX_FIFO_SIZE(gige) / 8 / EMAC_FIFO_ENTRY_SIZE,
- EMAC_RX_FIFO_SIZE(gige) / 4 / EMAC_FIFO_ENTRY_SIZE);
- out_be32(&p->rwmr, r);
-
- /* Set PAUSE timer to the maximum */
- out_be32(&p->ptr, 0xffff);
-
- /* IRQ sources */
- out_be32(&p->iser, EMAC_ISR_TXPE | EMAC_ISR_RXPE | /* EMAC_ISR_TXUE |
- EMAC_ISR_RXOE | */ EMAC_ISR_OVR | EMAC_ISR_BP | EMAC_ISR_SE |
- EMAC_ISR_ALE | EMAC_ISR_BFCS | EMAC_ISR_PTLE | EMAC_ISR_ORE |
- EMAC_ISR_IRE | EMAC_ISR_TE);
-
- /* We need to take GPCS PHY out of isolate mode after EMAC reset */
- if (emac_phy_gpcs(dev->phy.mode))
- mii_reset_phy(&dev->phy);
-
- return 0;
-}
-
-/* BHs disabled */
-static void emac_reinitialize(struct ocp_enet_private *dev)
-{
- DBG("%d: reinitialize" NL, dev->def->index);
-
- if (!emac_configure(dev)) {
- emac_tx_enable(dev);
- emac_rx_enable(dev);
- }
-}
-
-/* BHs disabled */
-static void emac_full_tx_reset(struct net_device *ndev)
-{
- struct ocp_enet_private *dev = ndev->priv;
- struct ocp_func_emac_data *emacdata = dev->def->additions;
-
- DBG("%d: full_tx_reset" NL, dev->def->index);
-
- emac_tx_disable(dev);
- mal_disable_tx_channel(dev->mal, emacdata->mal_tx_chan);
- emac_clean_tx_ring(dev);
- dev->tx_cnt = dev->tx_slot = dev->ack_slot = 0;
-
- emac_configure(dev);
-
- mal_enable_tx_channel(dev->mal, emacdata->mal_tx_chan);
- emac_tx_enable(dev);
- emac_rx_enable(dev);
-
- netif_wake_queue(ndev);
-}
-
-static int __emac_mdio_read(struct ocp_enet_private *dev, u8 id, u8 reg)
-{
- struct emac_regs __iomem *p = dev->emacp;
- u32 r;
- int n;
-
- DBG2("%d: mdio_read(%02x,%02x)" NL, dev->def->index, id, reg);
-
- /* Enable proper MDIO port */
- zmii_enable_mdio(dev->zmii_dev, dev->zmii_input);
-
- /* Wait for management interface to become idle */
- n = 10;
- while (!emac_phy_done(in_be32(&p->stacr))) {
- udelay(1);
- if (!--n)
- goto to;
- }
-
- /* Issue read command */
- out_be32(&p->stacr,
- EMAC_STACR_BASE(emac_opb_mhz()) | EMAC_STACR_STAC_READ |
- (reg & EMAC_STACR_PRA_MASK)
- | ((id & EMAC_STACR_PCDA_MASK) << EMAC_STACR_PCDA_SHIFT)
- | EMAC_STACR_START);
-
- /* Wait for read to complete */
- n = 100;
- while (!emac_phy_done(r = in_be32(&p->stacr))) {
- udelay(1);
- if (!--n)
- goto to;
- }
-
- if (unlikely(r & EMAC_STACR_PHYE)) {
- DBG("%d: mdio_read(%02x, %02x) failed" NL, dev->def->index,
- id, reg);
- return -EREMOTEIO;
- }
-
- r = ((r >> EMAC_STACR_PHYD_SHIFT) & EMAC_STACR_PHYD_MASK);
- DBG2("%d: mdio_read -> %04x" NL, dev->def->index, r);
- return r;
- to:
- DBG("%d: MII management interface timeout (read)" NL, dev->def->index);
- return -ETIMEDOUT;
-}
-
-static void __emac_mdio_write(struct ocp_enet_private *dev, u8 id, u8 reg,
- u16 val)
-{
- struct emac_regs __iomem *p = dev->emacp;
- int n;
-
- DBG2("%d: mdio_write(%02x,%02x,%04x)" NL, dev->def->index, id, reg,
- val);
-
- /* Enable proper MDIO port */
- zmii_enable_mdio(dev->zmii_dev, dev->zmii_input);
-
- /* Wait for management interface to be idle */
- n = 10;
- while (!emac_phy_done(in_be32(&p->stacr))) {
- udelay(1);
- if (!--n)
- goto to;
- }
-
- /* Issue write command */
- out_be32(&p->stacr,
- EMAC_STACR_BASE(emac_opb_mhz()) | EMAC_STACR_STAC_WRITE |
- (reg & EMAC_STACR_PRA_MASK) |
- ((id & EMAC_STACR_PCDA_MASK) << EMAC_STACR_PCDA_SHIFT) |
- (val << EMAC_STACR_PHYD_SHIFT) | EMAC_STACR_START);
-
- /* Wait for write to complete */
- n = 100;
- while (!emac_phy_done(in_be32(&p->stacr))) {
- udelay(1);
- if (!--n)
- goto to;
- }
- return;
- to:
- DBG("%d: MII management interface timeout (write)" NL, dev->def->index);
-}
-
-static int emac_mdio_read(struct net_device *ndev, int id, int reg)
-{
- struct ocp_enet_private *dev = ndev->priv;
- int res;
-
- local_bh_disable();
- res = __emac_mdio_read(dev->mdio_dev ? dev->mdio_dev : dev, (u8) id,
- (u8) reg);
- local_bh_enable();
- return res;
-}
-
-static void emac_mdio_write(struct net_device *ndev, int id, int reg, int val)
-{
- struct ocp_enet_private *dev = ndev->priv;
-
- local_bh_disable();
- __emac_mdio_write(dev->mdio_dev ? dev->mdio_dev : dev, (u8) id,
- (u8) reg, (u16) val);
- local_bh_enable();
-}
-
-/* BHs disabled */
-static void emac_set_multicast_list(struct net_device *ndev)
-{
- struct ocp_enet_private *dev = ndev->priv;
- struct emac_regs __iomem *p = dev->emacp;
- u32 rmr = emac_iff2rmr(ndev);
-
- DBG("%d: multicast %08x" NL, dev->def->index, rmr);
- BUG_ON(!netif_running(dev->ndev));
-
- /* I decided to relax register access rules here to avoid
- * full EMAC reset.
- *
- * There is a real problem with EMAC4 core if we use MWSW_001 bit
- * in MR1 register and do a full EMAC reset.
- * One TX BD status update is delayed and, after EMAC reset, it
- * never happens, resulting in TX hung (it'll be recovered by TX
- * timeout handler eventually, but this is just gross).
- * So we either have to do full TX reset or try to cheat here :)
- *
- * The only required change is to RX mode register, so I *think* all
- * we need is just to stop RX channel. This seems to work on all
- * tested SoCs. --ebs
- */
- emac_rx_disable(dev);
- if (rmr & EMAC_RMR_MAE)
- emac_hash_mc(dev);
- out_be32(&p->rmr, rmr);
- emac_rx_enable(dev);
-}
-
-/* BHs disabled */
-static int emac_resize_rx_ring(struct ocp_enet_private *dev, int new_mtu)
-{
- struct ocp_func_emac_data *emacdata = dev->def->additions;
- int rx_sync_size = emac_rx_sync_size(new_mtu);
- int rx_skb_size = emac_rx_skb_size(new_mtu);
- int i, ret = 0;
-
- emac_rx_disable(dev);
- mal_disable_rx_channel(dev->mal, emacdata->mal_rx_chan);
-
- if (dev->rx_sg_skb) {
- ++dev->estats.rx_dropped_resize;
- dev_kfree_skb(dev->rx_sg_skb);
- dev->rx_sg_skb = NULL;
- }
-
- /* Make a first pass over RX ring and mark BDs ready, dropping
- * non-processed packets on the way. We need this as a separate pass
- * to simplify error recovery in the case of allocation failure later.
- */
- for (i = 0; i < NUM_RX_BUFF; ++i) {
- if (dev->rx_desc[i].ctrl & MAL_RX_CTRL_FIRST)
- ++dev->estats.rx_dropped_resize;
-
- dev->rx_desc[i].data_len = 0;
- dev->rx_desc[i].ctrl = MAL_RX_CTRL_EMPTY |
- (i == (NUM_RX_BUFF - 1) ? MAL_RX_CTRL_WRAP : 0);
- }
-
- /* Reallocate RX ring only if bigger skb buffers are required */
- if (rx_skb_size <= dev->rx_skb_size)
- goto skip;
-
- /* Second pass, allocate new skbs */
- for (i = 0; i < NUM_RX_BUFF; ++i) {
- struct sk_buff *skb = alloc_skb(rx_skb_size, GFP_ATOMIC);
- if (!skb) {
- ret = -ENOMEM;
- goto oom;
- }
-
- BUG_ON(!dev->rx_skb[i]);
- dev_kfree_skb(dev->rx_skb[i]);
-
- skb_reserve(skb, EMAC_RX_SKB_HEADROOM + 2);
- dev->rx_desc[i].data_ptr =
- dma_map_single(dev->ldev, skb->data - 2, rx_sync_size,
- DMA_FROM_DEVICE) + 2;
- dev->rx_skb[i] = skb;
- }
- skip:
- /* Check if we need to change "Jumbo" bit in MR1 */
- if ((new_mtu > ETH_DATA_LEN) ^ (dev->ndev->mtu > ETH_DATA_LEN)) {
- /* This is to prevent starting RX channel in emac_rx_enable() */
- dev->commac.rx_stopped = 1;
-
- dev->ndev->mtu = new_mtu;
- emac_full_tx_reset(dev->ndev);
- }
-
- mal_set_rcbs(dev->mal, emacdata->mal_rx_chan, emac_rx_size(new_mtu));
- oom:
- /* Restart RX */
- dev->commac.rx_stopped = dev->rx_slot = 0;
- mal_enable_rx_channel(dev->mal, emacdata->mal_rx_chan);
- emac_rx_enable(dev);
-
- return ret;
-}
-
-/* Process ctx, rtnl_lock semaphore */
-static int emac_change_mtu(struct net_device *ndev, int new_mtu)
-{
- struct ocp_enet_private *dev = ndev->priv;
- int ret = 0;
-
- if (new_mtu < EMAC_MIN_MTU || new_mtu > EMAC_MAX_MTU)
- return -EINVAL;
-
- DBG("%d: change_mtu(%d)" NL, dev->def->index, new_mtu);
-
- local_bh_disable();
- if (netif_running(ndev)) {
- /* Check if we really need to reinitalize RX ring */
- if (emac_rx_skb_size(ndev->mtu) != emac_rx_skb_size(new_mtu))
- ret = emac_resize_rx_ring(dev, new_mtu);
- }
-
- if (!ret) {
- ndev->mtu = new_mtu;
- dev->rx_skb_size = emac_rx_skb_size(new_mtu);
- dev->rx_sync_size = emac_rx_sync_size(new_mtu);
- }
- local_bh_enable();
-
- return ret;
-}
-
-static void emac_clean_tx_ring(struct ocp_enet_private *dev)
-{
- int i;
- for (i = 0; i < NUM_TX_BUFF; ++i) {
- if (dev->tx_skb[i]) {
- dev_kfree_skb(dev->tx_skb[i]);
- dev->tx_skb[i] = NULL;
- if (dev->tx_desc[i].ctrl & MAL_TX_CTRL_READY)
- ++dev->estats.tx_dropped;
- }
- dev->tx_desc[i].ctrl = 0;
- dev->tx_desc[i].data_ptr = 0;
- }
-}
-
-static void emac_clean_rx_ring(struct ocp_enet_private *dev)
-{
- int i;
- for (i = 0; i < NUM_RX_BUFF; ++i)
- if (dev->rx_skb[i]) {
- dev->rx_desc[i].ctrl = 0;
- dev_kfree_skb(dev->rx_skb[i]);
- dev->rx_skb[i] = NULL;
- dev->rx_desc[i].data_ptr = 0;
- }
-
- if (dev->rx_sg_skb) {
- dev_kfree_skb(dev->rx_sg_skb);
- dev->rx_sg_skb = NULL;
- }
-}
-
-static inline int emac_alloc_rx_skb(struct ocp_enet_private *dev, int slot,
- gfp_t flags)
-{
- struct sk_buff *skb = alloc_skb(dev->rx_skb_size, flags);
- if (unlikely(!skb))
- return -ENOMEM;
-
- dev->rx_skb[slot] = skb;
- dev->rx_desc[slot].data_len = 0;
-
- skb_reserve(skb, EMAC_RX_SKB_HEADROOM + 2);
- dev->rx_desc[slot].data_ptr =
- dma_map_single(dev->ldev, skb->data - 2, dev->rx_sync_size,
- DMA_FROM_DEVICE) + 2;
- barrier();
- dev->rx_desc[slot].ctrl = MAL_RX_CTRL_EMPTY |
- (slot == (NUM_RX_BUFF - 1) ? MAL_RX_CTRL_WRAP : 0);
-
- return 0;
-}
-
-static void emac_print_link_status(struct ocp_enet_private *dev)
-{
- if (netif_carrier_ok(dev->ndev))
- printk(KERN_INFO "%s: link is up, %d %s%s\n",
- dev->ndev->name, dev->phy.speed,
- dev->phy.duplex == DUPLEX_FULL ? "FDX" : "HDX",
- dev->phy.pause ? ", pause enabled" :
- dev->phy.asym_pause ? ", assymetric pause enabled" : "");
- else
- printk(KERN_INFO "%s: link is down\n", dev->ndev->name);
-}
-
-/* Process ctx, rtnl_lock semaphore */
-static int emac_open(struct net_device *ndev)
-{
- struct ocp_enet_private *dev = ndev->priv;
- struct ocp_func_emac_data *emacdata = dev->def->additions;
- int err, i;
-
- DBG("%d: open" NL, dev->def->index);
-
- /* Setup error IRQ handler */
- err = request_irq(dev->def->irq, emac_irq, 0, "EMAC", dev);
- if (err) {
- printk(KERN_ERR "%s: failed to request IRQ %d\n",
- ndev->name, dev->def->irq);
- return err;
- }
-
- /* Allocate RX ring */
- for (i = 0; i < NUM_RX_BUFF; ++i)
- if (emac_alloc_rx_skb(dev, i, GFP_KERNEL)) {
- printk(KERN_ERR "%s: failed to allocate RX ring\n",
- ndev->name);
- goto oom;
- }
-
- local_bh_disable();
- dev->tx_cnt = dev->tx_slot = dev->ack_slot = dev->rx_slot =
- dev->commac.rx_stopped = 0;
- dev->rx_sg_skb = NULL;
-
- if (dev->phy.address >= 0) {
- int link_poll_interval;
- if (dev->phy.def->ops->poll_link(&dev->phy)) {
- dev->phy.def->ops->read_link(&dev->phy);
- EMAC_RX_CLK_DEFAULT(dev->def->index);
- netif_carrier_on(dev->ndev);
- link_poll_interval = PHY_POLL_LINK_ON;
- } else {
- EMAC_RX_CLK_TX(dev->def->index);
- netif_carrier_off(dev->ndev);
- link_poll_interval = PHY_POLL_LINK_OFF;
- }
- mod_timer(&dev->link_timer, jiffies + link_poll_interval);
- emac_print_link_status(dev);
- } else
- netif_carrier_on(dev->ndev);
-
- emac_configure(dev);
- mal_poll_add(dev->mal, &dev->commac);
- mal_enable_tx_channel(dev->mal, emacdata->mal_tx_chan);
- mal_set_rcbs(dev->mal, emacdata->mal_rx_chan, emac_rx_size(ndev->mtu));
- mal_enable_rx_channel(dev->mal, emacdata->mal_rx_chan);
- emac_tx_enable(dev);
- emac_rx_enable(dev);
- netif_start_queue(ndev);
- local_bh_enable();
-
- return 0;
- oom:
- emac_clean_rx_ring(dev);
- free_irq(dev->def->irq, dev);
- return -ENOMEM;
-}
-
-/* BHs disabled */
-static int emac_link_differs(struct ocp_enet_private *dev)
-{
- u32 r = in_be32(&dev->emacp->mr1);
-
- int duplex = r & EMAC_MR1_FDE ? DUPLEX_FULL : DUPLEX_HALF;
- int speed, pause, asym_pause;
-
- if (r & EMAC_MR1_MF_1000)
- speed = SPEED_1000;
- else if (r & EMAC_MR1_MF_100)
- speed = SPEED_100;
- else
- speed = SPEED_10;
-
- switch (r & (EMAC_MR1_EIFC | EMAC_MR1_APP)) {
- case (EMAC_MR1_EIFC | EMAC_MR1_APP):
- pause = 1;
- asym_pause = 0;
- break;
- case EMAC_MR1_APP:
- pause = 0;
- asym_pause = 1;
- break;
- default:
- pause = asym_pause = 0;
- }
- return speed != dev->phy.speed || duplex != dev->phy.duplex ||
- pause != dev->phy.pause || asym_pause != dev->phy.asym_pause;
-}
-
-/* BHs disabled */
-static void emac_link_timer(unsigned long data)
-{
- struct ocp_enet_private *dev = (struct ocp_enet_private *)data;
- int link_poll_interval;
-
- DBG2("%d: link timer" NL, dev->def->index);
-
- if (dev->phy.def->ops->poll_link(&dev->phy)) {
- if (!netif_carrier_ok(dev->ndev)) {
- EMAC_RX_CLK_DEFAULT(dev->def->index);
-
- /* Get new link parameters */
- dev->phy.def->ops->read_link(&dev->phy);
-
- if (dev->tah_dev || emac_link_differs(dev))
- emac_full_tx_reset(dev->ndev);
-
- netif_carrier_on(dev->ndev);
- emac_print_link_status(dev);
- }
- link_poll_interval = PHY_POLL_LINK_ON;
- } else {
- if (netif_carrier_ok(dev->ndev)) {
- EMAC_RX_CLK_TX(dev->def->index);
-#if defined(CONFIG_IBM_EMAC_PHY_RX_CLK_FIX)
- emac_reinitialize(dev);
-#endif
- netif_carrier_off(dev->ndev);
- emac_print_link_status(dev);
- }
-
- /* Retry reset if the previous attempt failed.
- * This is needed mostly for CONFIG_IBM_EMAC_PHY_RX_CLK_FIX
- * case, but I left it here because it shouldn't trigger for
- * sane PHYs anyway.
- */
- if (unlikely(dev->reset_failed))
- emac_reinitialize(dev);
-
- link_poll_interval = PHY_POLL_LINK_OFF;
- }
- mod_timer(&dev->link_timer, jiffies + link_poll_interval);
-}
-
-/* BHs disabled */
-static void emac_force_link_update(struct ocp_enet_private *dev)
-{
- netif_carrier_off(dev->ndev);
- if (timer_pending(&dev->link_timer))
- mod_timer(&dev->link_timer, jiffies + PHY_POLL_LINK_OFF);
-}
-
-/* Process ctx, rtnl_lock semaphore */
-static int emac_close(struct net_device *ndev)
-{
- struct ocp_enet_private *dev = ndev->priv;
- struct ocp_func_emac_data *emacdata = dev->def->additions;
-
- DBG("%d: close" NL, dev->def->index);
-
- local_bh_disable();
-
- if (dev->phy.address >= 0)
- del_timer_sync(&dev->link_timer);
-
- netif_stop_queue(ndev);
- emac_rx_disable(dev);
- emac_tx_disable(dev);
- mal_disable_rx_channel(dev->mal, emacdata->mal_rx_chan);
- mal_disable_tx_channel(dev->mal, emacdata->mal_tx_chan);
- mal_poll_del(dev->mal, &dev->commac);
- local_bh_enable();
-
- emac_clean_tx_ring(dev);
- emac_clean_rx_ring(dev);
- free_irq(dev->def->irq, dev);
-
- return 0;
-}
-
-static inline u16 emac_tx_csum(struct ocp_enet_private *dev,
- struct sk_buff *skb)
-{
-#if defined(CONFIG_IBM_EMAC_TAH)
- if (skb->ip_summed == CHECKSUM_PARTIAL) {
- ++dev->stats.tx_packets_csum;
- return EMAC_TX_CTRL_TAH_CSUM;
- }
-#endif
- return 0;
-}
-
-static inline int emac_xmit_finish(struct ocp_enet_private *dev, int len)
-{
- struct emac_regs __iomem *p = dev->emacp;
- struct net_device *ndev = dev->ndev;
-
- /* Send the packet out */
- out_be32(&p->tmr0, EMAC_TMR0_XMIT);
-
- if (unlikely(++dev->tx_cnt == NUM_TX_BUFF)) {
- netif_stop_queue(ndev);
- DBG2("%d: stopped TX queue" NL, dev->def->index);
- }
-
- ndev->trans_start = jiffies;
- ++dev->stats.tx_packets;
- dev->stats.tx_bytes += len;
-
- return 0;
-}
-
-/* BHs disabled */
-static int emac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
-{
- struct ocp_enet_private *dev = ndev->priv;
- unsigned int len = skb->len;
- int slot;
-
- u16 ctrl = EMAC_TX_CTRL_GFCS | EMAC_TX_CTRL_GP | MAL_TX_CTRL_READY |
- MAL_TX_CTRL_LAST | emac_tx_csum(dev, skb);
-
- slot = dev->tx_slot++;
- if (dev->tx_slot == NUM_TX_BUFF) {
- dev->tx_slot = 0;
- ctrl |= MAL_TX_CTRL_WRAP;
- }
-
- DBG2("%d: xmit(%u) %d" NL, dev->def->index, len, slot);
-
- dev->tx_skb[slot] = skb;
- dev->tx_desc[slot].data_ptr = dma_map_single(dev->ldev, skb->data, len,
- DMA_TO_DEVICE);
- dev->tx_desc[slot].data_len = (u16) len;
- barrier();
- dev->tx_desc[slot].ctrl = ctrl;
-
- return emac_xmit_finish(dev, len);
-}
-
-#if defined(CONFIG_IBM_EMAC_TAH)
-static inline int emac_xmit_split(struct ocp_enet_private *dev, int slot,
- u32 pd, int len, int last, u16 base_ctrl)
-{
- while (1) {
- u16 ctrl = base_ctrl;
- int chunk = min(len, MAL_MAX_TX_SIZE);
- len -= chunk;
-
- slot = (slot + 1) % NUM_TX_BUFF;
-
- if (last && !len)
- ctrl |= MAL_TX_CTRL_LAST;
- if (slot == NUM_TX_BUFF - 1)
- ctrl |= MAL_TX_CTRL_WRAP;
-
- dev->tx_skb[slot] = NULL;
- dev->tx_desc[slot].data_ptr = pd;
- dev->tx_desc[slot].data_len = (u16) chunk;
- dev->tx_desc[slot].ctrl = ctrl;
- ++dev->tx_cnt;
-
- if (!len)
- break;
-
- pd += chunk;
- }
- return slot;
-}
-
-/* BHs disabled (SG version for TAH equipped EMACs) */
-static int emac_start_xmit_sg(struct sk_buff *skb, struct net_device *ndev)
-{
- struct ocp_enet_private *dev = ndev->priv;
- int nr_frags = skb_shinfo(skb)->nr_frags;
- int len = skb->len, chunk;
- int slot, i;
- u16 ctrl;
- u32 pd;
-
- /* This is common "fast" path */
- if (likely(!nr_frags && len <= MAL_MAX_TX_SIZE))
- return emac_start_xmit(skb, ndev);
-
- len -= skb->data_len;
-
- /* Note, this is only an *estimation*, we can still run out of empty
- * slots because of the additional fragmentation into
- * MAL_MAX_TX_SIZE-sized chunks
- */
- if (unlikely(dev->tx_cnt + nr_frags + mal_tx_chunks(len) > NUM_TX_BUFF))
- goto stop_queue;
-
- ctrl = EMAC_TX_CTRL_GFCS | EMAC_TX_CTRL_GP | MAL_TX_CTRL_READY |
- emac_tx_csum(dev, skb);
- slot = dev->tx_slot;
-
- /* skb data */
- dev->tx_skb[slot] = NULL;
- chunk = min(len, MAL_MAX_TX_SIZE);
- dev->tx_desc[slot].data_ptr = pd =
- dma_map_single(dev->ldev, skb->data, len, DMA_TO_DEVICE);
- dev->tx_desc[slot].data_len = (u16) chunk;
- len -= chunk;
- if (unlikely(len))
- slot = emac_xmit_split(dev, slot, pd + chunk, len, !nr_frags,
- ctrl);
- /* skb fragments */
- for (i = 0; i < nr_frags; ++i) {
- struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[i];
- len = frag->size;
-
- if (unlikely(dev->tx_cnt + mal_tx_chunks(len) >= NUM_TX_BUFF))
- goto undo_frame;
-
- pd = dma_map_page(dev->ldev, frag->page, frag->page_offset, len,
- DMA_TO_DEVICE);
-
- slot = emac_xmit_split(dev, slot, pd, len, i == nr_frags - 1,
- ctrl);
- }
-
- DBG2("%d: xmit_sg(%u) %d - %d" NL, dev->def->index, skb->len,
- dev->tx_slot, slot);
-
- /* Attach skb to the last slot so we don't release it too early */
- dev->tx_skb[slot] = skb;
-
- /* Send the packet out */
- if (dev->tx_slot == NUM_TX_BUFF - 1)
- ctrl |= MAL_TX_CTRL_WRAP;
- barrier();
- dev->tx_desc[dev->tx_slot].ctrl = ctrl;
- dev->tx_slot = (slot + 1) % NUM_TX_BUFF;
-
- return emac_xmit_finish(dev, skb->len);
-
- undo_frame:
- /* Well, too bad. Our previous estimation was overly optimistic.
- * Undo everything.
- */
- while (slot != dev->tx_slot) {
- dev->tx_desc[slot].ctrl = 0;
- --dev->tx_cnt;
- if (--slot < 0)
- slot = NUM_TX_BUFF - 1;
- }
- ++dev->estats.tx_undo;
-
- stop_queue:
- netif_stop_queue(ndev);
- DBG2("%d: stopped TX queue" NL, dev->def->index);
- return 1;
-}
-#else
-# define emac_start_xmit_sg emac_start_xmit
-#endif /* !defined(CONFIG_IBM_EMAC_TAH) */
-
-/* BHs disabled */
-static void emac_parse_tx_error(struct ocp_enet_private *dev, u16 ctrl)
-{
- struct ibm_emac_error_stats *st = &dev->estats;
- DBG("%d: BD TX error %04x" NL, dev->def->index, ctrl);
-
- ++st->tx_bd_errors;
- if (ctrl & EMAC_TX_ST_BFCS)
- ++st->tx_bd_bad_fcs;
- if (ctrl & EMAC_TX_ST_LCS)
- ++st->tx_bd_carrier_loss;
- if (ctrl & EMAC_TX_ST_ED)
- ++st->tx_bd_excessive_deferral;
- if (ctrl & EMAC_TX_ST_EC)
- ++st->tx_bd_excessive_collisions;
- if (ctrl & EMAC_TX_ST_LC)
- ++st->tx_bd_late_collision;
- if (ctrl & EMAC_TX_ST_MC)
- ++st->tx_bd_multple_collisions;
- if (ctrl & EMAC_TX_ST_SC)
- ++st->tx_bd_single_collision;
- if (ctrl & EMAC_TX_ST_UR)
- ++st->tx_bd_underrun;
- if (ctrl & EMAC_TX_ST_SQE)
- ++st->tx_bd_sqe;
-}
-
-static void emac_poll_tx(void *param)
-{
- struct ocp_enet_private *dev = param;
- DBG2("%d: poll_tx, %d %d" NL, dev->def->index, dev->tx_cnt,
- dev->ack_slot);
-
- if (dev->tx_cnt) {
- u16 ctrl;
- int slot = dev->ack_slot, n = 0;
- again:
- ctrl = dev->tx_desc[slot].ctrl;
- if (!(ctrl & MAL_TX_CTRL_READY)) {
- struct sk_buff *skb = dev->tx_skb[slot];
- ++n;
-
- if (skb) {
- dev_kfree_skb(skb);
- dev->tx_skb[slot] = NULL;
- }
- slot = (slot + 1) % NUM_TX_BUFF;
-
- if (unlikely(EMAC_IS_BAD_TX(ctrl)))
- emac_parse_tx_error(dev, ctrl);
-
- if (--dev->tx_cnt)
- goto again;
- }
- if (n) {
- dev->ack_slot = slot;
- if (netif_queue_stopped(dev->ndev) &&
- dev->tx_cnt < EMAC_TX_WAKEUP_THRESH)
- netif_wake_queue(dev->ndev);
-
- DBG2("%d: tx %d pkts" NL, dev->def->index, n);
- }
- }
-}
-
-static inline void emac_recycle_rx_skb(struct ocp_enet_private *dev, int slot,
- int len)
-{
- struct sk_buff *skb = dev->rx_skb[slot];
- DBG2("%d: recycle %d %d" NL, dev->def->index, slot, len);
-
- if (len)
- dma_map_single(dev->ldev, skb->data - 2,
- EMAC_DMA_ALIGN(len + 2), DMA_FROM_DEVICE);
-
- dev->rx_desc[slot].data_len = 0;
- barrier();
- dev->rx_desc[slot].ctrl = MAL_RX_CTRL_EMPTY |
- (slot == (NUM_RX_BUFF - 1) ? MAL_RX_CTRL_WRAP : 0);
-}
-
-static void emac_parse_rx_error(struct ocp_enet_private *dev, u16 ctrl)
-{
- struct ibm_emac_error_stats *st = &dev->estats;
- DBG("%d: BD RX error %04x" NL, dev->def->index, ctrl);
-
- ++st->rx_bd_errors;
- if (ctrl & EMAC_RX_ST_OE)
- ++st->rx_bd_overrun;
- if (ctrl & EMAC_RX_ST_BP)
- ++st->rx_bd_bad_packet;
- if (ctrl & EMAC_RX_ST_RP)
- ++st->rx_bd_runt_packet;
- if (ctrl & EMAC_RX_ST_SE)
- ++st->rx_bd_short_event;
- if (ctrl & EMAC_RX_ST_AE)
- ++st->rx_bd_alignment_error;
- if (ctrl & EMAC_RX_ST_BFCS)
- ++st->rx_bd_bad_fcs;
- if (ctrl & EMAC_RX_ST_PTL)
- ++st->rx_bd_packet_too_long;
- if (ctrl & EMAC_RX_ST_ORE)
- ++st->rx_bd_out_of_range;
- if (ctrl & EMAC_RX_ST_IRE)
- ++st->rx_bd_in_range;
-}
-
-static inline void emac_rx_csum(struct ocp_enet_private *dev,
- struct sk_buff *skb, u16 ctrl)
-{
-#if defined(CONFIG_IBM_EMAC_TAH)
- if (!ctrl && dev->tah_dev) {
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- ++dev->stats.rx_packets_csum;
- }
-#endif
-}
-
-static inline int emac_rx_sg_append(struct ocp_enet_private *dev, int slot)
-{
- if (likely(dev->rx_sg_skb != NULL)) {
- int len = dev->rx_desc[slot].data_len;
- int tot_len = dev->rx_sg_skb->len + len;
-
- if (unlikely(tot_len + 2 > dev->rx_skb_size)) {
- ++dev->estats.rx_dropped_mtu;
- dev_kfree_skb(dev->rx_sg_skb);
- dev->rx_sg_skb = NULL;
- } else {
- cacheable_memcpy(skb_tail_pointer(dev->rx_sg_skb),
- dev->rx_skb[slot]->data, len);
- skb_put(dev->rx_sg_skb, len);
- emac_recycle_rx_skb(dev, slot, len);
- return 0;
- }
- }
- emac_recycle_rx_skb(dev, slot, 0);
- return -1;
-}
-
-/* BHs disabled */
-static int emac_poll_rx(void *param, int budget)
-{
- struct ocp_enet_private *dev = param;
- int slot = dev->rx_slot, received = 0;
-
- DBG2("%d: poll_rx(%d)" NL, dev->def->index, budget);
-
- again:
- while (budget > 0) {
- int len;
- struct sk_buff *skb;
- u16 ctrl = dev->rx_desc[slot].ctrl;
-
- if (ctrl & MAL_RX_CTRL_EMPTY)
- break;
-
- skb = dev->rx_skb[slot];
- barrier();
- len = dev->rx_desc[slot].data_len;
-
- if (unlikely(!MAL_IS_SINGLE_RX(ctrl)))
- goto sg;
-
- ctrl &= EMAC_BAD_RX_MASK;
- if (unlikely(ctrl && ctrl != EMAC_RX_TAH_BAD_CSUM)) {
- emac_parse_rx_error(dev, ctrl);
- ++dev->estats.rx_dropped_error;
- emac_recycle_rx_skb(dev, slot, 0);
- len = 0;
- goto next;
- }
-
- if (len && len < EMAC_RX_COPY_THRESH) {
- struct sk_buff *copy_skb =
- alloc_skb(len + EMAC_RX_SKB_HEADROOM + 2, GFP_ATOMIC);
- if (unlikely(!copy_skb))
- goto oom;
-
- skb_reserve(copy_skb, EMAC_RX_SKB_HEADROOM + 2);
- cacheable_memcpy(copy_skb->data - 2, skb->data - 2,
- len + 2);
- emac_recycle_rx_skb(dev, slot, len);
- skb = copy_skb;
- } else if (unlikely(emac_alloc_rx_skb(dev, slot, GFP_ATOMIC)))
- goto oom;
-
- skb_put(skb, len);
- push_packet:
- skb->protocol = eth_type_trans(skb, dev->ndev);
- emac_rx_csum(dev, skb, ctrl);
-
- if (unlikely(netif_receive_skb(skb) == NET_RX_DROP))
- ++dev->estats.rx_dropped_stack;
- next:
- ++dev->stats.rx_packets;
- skip:
- dev->stats.rx_bytes += len;
- slot = (slot + 1) % NUM_RX_BUFF;
- --budget;
- ++received;
- continue;
- sg:
- if (ctrl & MAL_RX_CTRL_FIRST) {
- BUG_ON(dev->rx_sg_skb);
- if (unlikely(emac_alloc_rx_skb(dev, slot, GFP_ATOMIC))) {
- DBG("%d: rx OOM %d" NL, dev->def->index, slot);
- ++dev->estats.rx_dropped_oom;
- emac_recycle_rx_skb(dev, slot, 0);
- } else {
- dev->rx_sg_skb = skb;
- skb_put(skb, len);
- }
- } else if (!emac_rx_sg_append(dev, slot) &&
- (ctrl & MAL_RX_CTRL_LAST)) {
-
- skb = dev->rx_sg_skb;
- dev->rx_sg_skb = NULL;
-
- ctrl &= EMAC_BAD_RX_MASK;
- if (unlikely(ctrl && ctrl != EMAC_RX_TAH_BAD_CSUM)) {
- emac_parse_rx_error(dev, ctrl);
- ++dev->estats.rx_dropped_error;
- dev_kfree_skb(skb);
- len = 0;
- } else
- goto push_packet;
- }
- goto skip;
- oom:
- DBG("%d: rx OOM %d" NL, dev->def->index, slot);
- /* Drop the packet and recycle skb */
- ++dev->estats.rx_dropped_oom;
- emac_recycle_rx_skb(dev, slot, 0);
- goto next;
- }
-
- if (received) {
- DBG2("%d: rx %d BDs" NL, dev->def->index, received);
- dev->rx_slot = slot;
- }
-
- if (unlikely(budget && dev->commac.rx_stopped)) {
- struct ocp_func_emac_data *emacdata = dev->def->additions;
-
- barrier();
- if (!(dev->rx_desc[slot].ctrl & MAL_RX_CTRL_EMPTY)) {
- DBG2("%d: rx restart" NL, dev->def->index);
- received = 0;
- goto again;
- }
-
- if (dev->rx_sg_skb) {
- DBG2("%d: dropping partial rx packet" NL,
- dev->def->index);
- ++dev->estats.rx_dropped_error;
- dev_kfree_skb(dev->rx_sg_skb);
- dev->rx_sg_skb = NULL;
- }
-
- dev->commac.rx_stopped = 0;
- mal_enable_rx_channel(dev->mal, emacdata->mal_rx_chan);
- emac_rx_enable(dev);
- dev->rx_slot = 0;
- }
- return received;
-}
-
-/* BHs disabled */
-static int emac_peek_rx(void *param)
-{
- struct ocp_enet_private *dev = param;
- return !(dev->rx_desc[dev->rx_slot].ctrl & MAL_RX_CTRL_EMPTY);
-}
-
-/* BHs disabled */
-static int emac_peek_rx_sg(void *param)
-{
- struct ocp_enet_private *dev = param;
- int slot = dev->rx_slot;
- while (1) {
- u16 ctrl = dev->rx_desc[slot].ctrl;
- if (ctrl & MAL_RX_CTRL_EMPTY)
- return 0;
- else if (ctrl & MAL_RX_CTRL_LAST)
- return 1;
-
- slot = (slot + 1) % NUM_RX_BUFF;
-
- /* I'm just being paranoid here :) */
- if (unlikely(slot == dev->rx_slot))
- return 0;
- }
-}
-
-/* Hard IRQ */
-static void emac_rxde(void *param)
-{
- struct ocp_enet_private *dev = param;
- ++dev->estats.rx_stopped;
- emac_rx_disable_async(dev);
-}
-
-/* Hard IRQ */
-static irqreturn_t emac_irq(int irq, void *dev_instance)
-{
- struct ocp_enet_private *dev = dev_instance;
- struct emac_regs __iomem *p = dev->emacp;
- struct ibm_emac_error_stats *st = &dev->estats;
-
- u32 isr = in_be32(&p->isr);
- out_be32(&p->isr, isr);
-
- DBG("%d: isr = %08x" NL, dev->def->index, isr);
-
- if (isr & EMAC_ISR_TXPE)
- ++st->tx_parity;
- if (isr & EMAC_ISR_RXPE)
- ++st->rx_parity;
- if (isr & EMAC_ISR_TXUE)
- ++st->tx_underrun;
- if (isr & EMAC_ISR_RXOE)
- ++st->rx_fifo_overrun;
- if (isr & EMAC_ISR_OVR)
- ++st->rx_overrun;
- if (isr & EMAC_ISR_BP)
- ++st->rx_bad_packet;
- if (isr & EMAC_ISR_RP)
- ++st->rx_runt_packet;
- if (isr & EMAC_ISR_SE)
- ++st->rx_short_event;
- if (isr & EMAC_ISR_ALE)
- ++st->rx_alignment_error;
- if (isr & EMAC_ISR_BFCS)
- ++st->rx_bad_fcs;
- if (isr & EMAC_ISR_PTLE)
- ++st->rx_packet_too_long;
- if (isr & EMAC_ISR_ORE)
- ++st->rx_out_of_range;
- if (isr & EMAC_ISR_IRE)
- ++st->rx_in_range;
- if (isr & EMAC_ISR_SQE)
- ++st->tx_sqe;
- if (isr & EMAC_ISR_TE)
- ++st->tx_errors;
-
- return IRQ_HANDLED;
-}
-
-static struct net_device_stats *emac_stats(struct net_device *ndev)
-{
- struct ocp_enet_private *dev = ndev->priv;
- struct ibm_emac_stats *st = &dev->stats;
- struct ibm_emac_error_stats *est = &dev->estats;
- struct net_device_stats *nst = &dev->nstats;
-
- DBG2("%d: stats" NL, dev->def->index);
-
- /* Compute "legacy" statistics */
- local_irq_disable();
- nst->rx_packets = (unsigned long)st->rx_packets;
- nst->rx_bytes = (unsigned long)st->rx_bytes;
- nst->tx_packets = (unsigned long)st->tx_packets;
- nst->tx_bytes = (unsigned long)st->tx_bytes;
- nst->rx_dropped = (unsigned long)(est->rx_dropped_oom +
- est->rx_dropped_error +
- est->rx_dropped_resize +
- est->rx_dropped_mtu);
- nst->tx_dropped = (unsigned long)est->tx_dropped;
-
- nst->rx_errors = (unsigned long)est->rx_bd_errors;
- nst->rx_fifo_errors = (unsigned long)(est->rx_bd_overrun +
- est->rx_fifo_overrun +
- est->rx_overrun);
- nst->rx_frame_errors = (unsigned long)(est->rx_bd_alignment_error +
- est->rx_alignment_error);
- nst->rx_crc_errors = (unsigned long)(est->rx_bd_bad_fcs +
- est->rx_bad_fcs);
- nst->rx_length_errors = (unsigned long)(est->rx_bd_runt_packet +
- est->rx_bd_short_event +
- est->rx_bd_packet_too_long +
- est->rx_bd_out_of_range +
- est->rx_bd_in_range +
- est->rx_runt_packet +
- est->rx_short_event +
- est->rx_packet_too_long +
- est->rx_out_of_range +
- est->rx_in_range);
-
- nst->tx_errors = (unsigned long)(est->tx_bd_errors + est->tx_errors);
- nst->tx_fifo_errors = (unsigned long)(est->tx_bd_underrun +
- est->tx_underrun);
- nst->tx_carrier_errors = (unsigned long)est->tx_bd_carrier_loss;
- nst->collisions = (unsigned long)(est->tx_bd_excessive_deferral +
- est->tx_bd_excessive_collisions +
- est->tx_bd_late_collision +
- est->tx_bd_multple_collisions);
- local_irq_enable();
- return nst;
-}
-
-static void emac_remove(struct ocp_device *ocpdev)
-{
- struct ocp_enet_private *dev = ocp_get_drvdata(ocpdev);
-
- DBG("%d: remove" NL, dev->def->index);
-
- ocp_set_drvdata(ocpdev, NULL);
- unregister_netdev(dev->ndev);
-
- tah_fini(dev->tah_dev);
- rgmii_fini(dev->rgmii_dev, dev->rgmii_input);
- zmii_fini(dev->zmii_dev, dev->zmii_input);
-
- emac_dbg_register(dev->def->index, NULL);
-
- mal_unregister_commac(dev->mal, &dev->commac);
- iounmap(dev->emacp);
- kfree(dev->ndev);
-}
-
-static struct mal_commac_ops emac_commac_ops = {
- .poll_tx = &emac_poll_tx,
- .poll_rx = &emac_poll_rx,
- .peek_rx = &emac_peek_rx,
- .rxde = &emac_rxde,
-};
-
-static struct mal_commac_ops emac_commac_sg_ops = {
- .poll_tx = &emac_poll_tx,
- .poll_rx = &emac_poll_rx,
- .peek_rx = &emac_peek_rx_sg,
- .rxde = &emac_rxde,
-};
-
-/* Ethtool support */
-static int emac_ethtool_get_settings(struct net_device *ndev,
- struct ethtool_cmd *cmd)
-{
- struct ocp_enet_private *dev = ndev->priv;
-
- cmd->supported = dev->phy.features;
- cmd->port = PORT_MII;
- cmd->phy_address = dev->phy.address;
- cmd->transceiver =
- dev->phy.address >= 0 ? XCVR_EXTERNAL : XCVR_INTERNAL;
-
- local_bh_disable();
- cmd->advertising = dev->phy.advertising;
- cmd->autoneg = dev->phy.autoneg;
- cmd->speed = dev->phy.speed;
- cmd->duplex = dev->phy.duplex;
- local_bh_enable();
-
- return 0;
-}
-
-static int emac_ethtool_set_settings(struct net_device *ndev,
- struct ethtool_cmd *cmd)
-{
- struct ocp_enet_private *dev = ndev->priv;
- u32 f = dev->phy.features;
-
- DBG("%d: set_settings(%d, %d, %d, 0x%08x)" NL, dev->def->index,
- cmd->autoneg, cmd->speed, cmd->duplex, cmd->advertising);
-
- /* Basic sanity checks */
- if (dev->phy.address < 0)
- return -EOPNOTSUPP;
- if (cmd->autoneg != AUTONEG_ENABLE && cmd->autoneg != AUTONEG_DISABLE)
- return -EINVAL;
- if (cmd->autoneg == AUTONEG_ENABLE && cmd->advertising == 0)
- return -EINVAL;
- if (cmd->duplex != DUPLEX_HALF && cmd->duplex != DUPLEX_FULL)
- return -EINVAL;
-
- if (cmd->autoneg == AUTONEG_DISABLE) {
- switch (cmd->speed) {
- case SPEED_10:
- if (cmd->duplex == DUPLEX_HALF
- && !(f & SUPPORTED_10baseT_Half))
- return -EINVAL;
- if (cmd->duplex == DUPLEX_FULL
- && !(f & SUPPORTED_10baseT_Full))
- return -EINVAL;
- break;
- case SPEED_100:
- if (cmd->duplex == DUPLEX_HALF
- && !(f & SUPPORTED_100baseT_Half))
- return -EINVAL;
- if (cmd->duplex == DUPLEX_FULL
- && !(f & SUPPORTED_100baseT_Full))
- return -EINVAL;
- break;
- case SPEED_1000:
- if (cmd->duplex == DUPLEX_HALF
- && !(f & SUPPORTED_1000baseT_Half))
- return -EINVAL;
- if (cmd->duplex == DUPLEX_FULL
- && !(f & SUPPORTED_1000baseT_Full))
- return -EINVAL;
- break;
- default:
- return -EINVAL;
- }
-
- local_bh_disable();
- dev->phy.def->ops->setup_forced(&dev->phy, cmd->speed,
- cmd->duplex);
-
- } else {
- if (!(f & SUPPORTED_Autoneg))
- return -EINVAL;
-
- local_bh_disable();
- dev->phy.def->ops->setup_aneg(&dev->phy,
- (cmd->advertising & f) |
- (dev->phy.advertising &
- (ADVERTISED_Pause |
- ADVERTISED_Asym_Pause)));
- }
- emac_force_link_update(dev);
- local_bh_enable();
-
- return 0;
-}
-
-static void emac_ethtool_get_ringparam(struct net_device *ndev,
- struct ethtool_ringparam *rp)
-{
- rp->rx_max_pending = rp->rx_pending = NUM_RX_BUFF;
- rp->tx_max_pending = rp->tx_pending = NUM_TX_BUFF;
-}
-
-static void emac_ethtool_get_pauseparam(struct net_device *ndev,
- struct ethtool_pauseparam *pp)
-{
- struct ocp_enet_private *dev = ndev->priv;
-
- local_bh_disable();
- if ((dev->phy.features & SUPPORTED_Autoneg) &&
- (dev->phy.advertising & (ADVERTISED_Pause | ADVERTISED_Asym_Pause)))
- pp->autoneg = 1;
-
- if (dev->phy.duplex == DUPLEX_FULL) {
- if (dev->phy.pause)
- pp->rx_pause = pp->tx_pause = 1;
- else if (dev->phy.asym_pause)
- pp->tx_pause = 1;
- }
- local_bh_enable();
-}
-
-static u32 emac_ethtool_get_rx_csum(struct net_device *ndev)
-{
- struct ocp_enet_private *dev = ndev->priv;
- return dev->tah_dev != 0;
-}
-
-static int emac_get_regs_len(struct ocp_enet_private *dev)
-{
- return sizeof(struct emac_ethtool_regs_subhdr) + EMAC_ETHTOOL_REGS_SIZE;
-}
-
-static int emac_ethtool_get_regs_len(struct net_device *ndev)
-{
- struct ocp_enet_private *dev = ndev->priv;
- return sizeof(struct emac_ethtool_regs_hdr) +
- emac_get_regs_len(dev) + mal_get_regs_len(dev->mal) +
- zmii_get_regs_len(dev->zmii_dev) +
- rgmii_get_regs_len(dev->rgmii_dev) +
- tah_get_regs_len(dev->tah_dev);
-}
-
-static void *emac_dump_regs(struct ocp_enet_private *dev, void *buf)
-{
- struct emac_ethtool_regs_subhdr *hdr = buf;
-
- hdr->version = EMAC_ETHTOOL_REGS_VER;
- hdr->index = dev->def->index;
- memcpy_fromio(hdr + 1, dev->emacp, EMAC_ETHTOOL_REGS_SIZE);
- return ((void *)(hdr + 1) + EMAC_ETHTOOL_REGS_SIZE);
-}
-
-static void emac_ethtool_get_regs(struct net_device *ndev,
- struct ethtool_regs *regs, void *buf)
-{
- struct ocp_enet_private *dev = ndev->priv;
- struct emac_ethtool_regs_hdr *hdr = buf;
-
- hdr->components = 0;
- buf = hdr + 1;
-
- local_irq_disable();
- buf = mal_dump_regs(dev->mal, buf);
- buf = emac_dump_regs(dev, buf);
- if (dev->zmii_dev) {
- hdr->components |= EMAC_ETHTOOL_REGS_ZMII;
- buf = zmii_dump_regs(dev->zmii_dev, buf);
- }
- if (dev->rgmii_dev) {
- hdr->components |= EMAC_ETHTOOL_REGS_RGMII;
- buf = rgmii_dump_regs(dev->rgmii_dev, buf);
- }
- if (dev->tah_dev) {
- hdr->components |= EMAC_ETHTOOL_REGS_TAH;
- buf = tah_dump_regs(dev->tah_dev, buf);
- }
- local_irq_enable();
-}
-
-static int emac_ethtool_nway_reset(struct net_device *ndev)
-{
- struct ocp_enet_private *dev = ndev->priv;
- int res = 0;
-
- DBG("%d: nway_reset" NL, dev->def->index);
-
- if (dev->phy.address < 0)
- return -EOPNOTSUPP;
-
- local_bh_disable();
- if (!dev->phy.autoneg) {
- res = -EINVAL;
- goto out;
- }
-
- dev->phy.def->ops->setup_aneg(&dev->phy, dev->phy.advertising);
- emac_force_link_update(dev);
-
- out:
- local_bh_enable();
- return res;
-}
-
-static int emac_get_sset_count(struct net_device *ndev, int sset)
-{
- switch (sset) {
- case ETH_SS_STATS:
- return EMAC_ETHTOOL_STATS_COUNT;
- default:
- return -EOPNOTSUPP;
- }
-}
-
-static void emac_ethtool_get_strings(struct net_device *ndev, u32 stringset,
- u8 * buf)
-{
- if (stringset == ETH_SS_STATS)
- memcpy(buf, &emac_stats_keys, sizeof(emac_stats_keys));
-}
-
-static void emac_ethtool_get_ethtool_stats(struct net_device *ndev,
- struct ethtool_stats *estats,
- u64 * tmp_stats)
-{
- struct ocp_enet_private *dev = ndev->priv;
- local_irq_disable();
- memcpy(tmp_stats, &dev->stats, sizeof(dev->stats));
- tmp_stats += sizeof(dev->stats) / sizeof(u64);
- memcpy(tmp_stats, &dev->estats, sizeof(dev->estats));
- local_irq_enable();
-}
-
-static void emac_ethtool_get_drvinfo(struct net_device *ndev,
- struct ethtool_drvinfo *info)
-{
- struct ocp_enet_private *dev = ndev->priv;
-
- strcpy(info->driver, "ibm_emac");
- strcpy(info->version, DRV_VERSION);
- info->fw_version[0] = '\0';
- sprintf(info->bus_info, "PPC 4xx EMAC %d", dev->def->index);
- info->regdump_len = emac_ethtool_get_regs_len(ndev);
-}
-
-static const struct ethtool_ops emac_ethtool_ops = {
- .get_settings = emac_ethtool_get_settings,
- .set_settings = emac_ethtool_set_settings,
- .get_drvinfo = emac_ethtool_get_drvinfo,
-
- .get_regs_len = emac_ethtool_get_regs_len,
- .get_regs = emac_ethtool_get_regs,
-
- .nway_reset = emac_ethtool_nway_reset,
-
- .get_ringparam = emac_ethtool_get_ringparam,
- .get_pauseparam = emac_ethtool_get_pauseparam,
-
- .get_rx_csum = emac_ethtool_get_rx_csum,
-
- .get_strings = emac_ethtool_get_strings,
- .get_sset_count = emac_get_sset_count,
- .get_ethtool_stats = emac_ethtool_get_ethtool_stats,
-
- .get_link = ethtool_op_get_link,
-};
-
-static int emac_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd)
-{
- struct ocp_enet_private *dev = ndev->priv;
- uint16_t *data = (uint16_t *) & rq->ifr_ifru;
-
- DBG("%d: ioctl %08x" NL, dev->def->index, cmd);
-
- if (dev->phy.address < 0)
- return -EOPNOTSUPP;
-
- switch (cmd) {
- case SIOCGMIIPHY:
- case SIOCDEVPRIVATE:
- data[0] = dev->phy.address;
- /* Fall through */
- case SIOCGMIIREG:
- case SIOCDEVPRIVATE + 1:
- data[3] = emac_mdio_read(ndev, dev->phy.address, data[1]);
- return 0;
-
- case SIOCSMIIREG:
- case SIOCDEVPRIVATE + 2:
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
- emac_mdio_write(ndev, dev->phy.address, data[1], data[2]);
- return 0;
- default:
- return -EOPNOTSUPP;
- }
-}
-
-static int __init emac_probe(struct ocp_device *ocpdev)
-{
- struct ocp_func_emac_data *emacdata = ocpdev->def->additions;
- struct net_device *ndev;
- struct ocp_device *maldev;
- struct ocp_enet_private *dev;
- int err, i;
- DECLARE_MAC_BUF(mac);
-
- DBG("%d: probe" NL, ocpdev->def->index);
-
- if (!emacdata) {
- printk(KERN_ERR "emac%d: Missing additional data!\n",
- ocpdev->def->index);
- return -ENODEV;
- }
-
- /* Allocate our net_device structure */
- ndev = alloc_etherdev(sizeof(struct ocp_enet_private));
- if (!ndev) {
- printk(KERN_ERR "emac%d: could not allocate ethernet device!\n",
- ocpdev->def->index);
- return -ENOMEM;
- }
- dev = ndev->priv;
- dev->ndev = ndev;
- dev->ldev = &ocpdev->dev;
- dev->def = ocpdev->def;
-
- /* Find MAL device we are connected to */
- maldev =
- ocp_find_device(OCP_VENDOR_IBM, OCP_FUNC_MAL, emacdata->mal_idx);
- if (!maldev) {
- printk(KERN_ERR "emac%d: unknown mal%d device!\n",
- dev->def->index, emacdata->mal_idx);
- err = -ENODEV;
- goto out;
- }
- dev->mal = ocp_get_drvdata(maldev);
- if (!dev->mal) {
- printk(KERN_ERR "emac%d: mal%d hasn't been initialized yet!\n",
- dev->def->index, emacdata->mal_idx);
- err = -ENODEV;
- goto out;
- }
-
- /* Register with MAL */
- dev->commac.ops = &emac_commac_ops;
- dev->commac.dev = dev;
- dev->commac.tx_chan_mask = MAL_CHAN_MASK(emacdata->mal_tx_chan);
- dev->commac.rx_chan_mask = MAL_CHAN_MASK(emacdata->mal_rx_chan);
- err = mal_register_commac(dev->mal, &dev->commac);
- if (err) {
- printk(KERN_ERR "emac%d: failed to register with mal%d!\n",
- dev->def->index, emacdata->mal_idx);
- goto out;
- }
- dev->rx_skb_size = emac_rx_skb_size(ndev->mtu);
- dev->rx_sync_size = emac_rx_sync_size(ndev->mtu);
-
- /* Get pointers to BD rings */
- dev->tx_desc =
- dev->mal->bd_virt + mal_tx_bd_offset(dev->mal,
- emacdata->mal_tx_chan);
- dev->rx_desc =
- dev->mal->bd_virt + mal_rx_bd_offset(dev->mal,
- emacdata->mal_rx_chan);
-
- DBG("%d: tx_desc %p" NL, ocpdev->def->index, dev->tx_desc);
- DBG("%d: rx_desc %p" NL, ocpdev->def->index, dev->rx_desc);
-
- /* Clean rings */
- memset(dev->tx_desc, 0, NUM_TX_BUFF * sizeof(struct mal_descriptor));
- memset(dev->rx_desc, 0, NUM_RX_BUFF * sizeof(struct mal_descriptor));
-
- /* If we depend on another EMAC for MDIO, check whether it was probed already */
- if (emacdata->mdio_idx >= 0 && emacdata->mdio_idx != ocpdev->def->index) {
- struct ocp_device *mdiodev =
- ocp_find_device(OCP_VENDOR_IBM, OCP_FUNC_EMAC,
- emacdata->mdio_idx);
- if (!mdiodev) {
- printk(KERN_ERR "emac%d: unknown emac%d device!\n",
- dev->def->index, emacdata->mdio_idx);
- err = -ENODEV;
- goto out2;
- }
- dev->mdio_dev = ocp_get_drvdata(mdiodev);
- if (!dev->mdio_dev) {
- printk(KERN_ERR
- "emac%d: emac%d hasn't been initialized yet!\n",
- dev->def->index, emacdata->mdio_idx);
- err = -ENODEV;
- goto out2;
- }
- }
-
- /* Attach to ZMII, if needed */
- if ((err = zmii_attach(dev)) != 0)
- goto out2;
-
- /* Attach to RGMII, if needed */
- if ((err = rgmii_attach(dev)) != 0)
- goto out3;
-
- /* Attach to TAH, if needed */
- if ((err = tah_attach(dev)) != 0)
- goto out4;
-
- /* Map EMAC regs */
- dev->emacp = ioremap(dev->def->paddr, sizeof(struct emac_regs));
- if (!dev->emacp) {
- printk(KERN_ERR "emac%d: could not ioremap device registers!\n",
- dev->def->index);
- err = -ENOMEM;
- goto out5;
- }
-
- /* Fill in MAC address */
- for (i = 0; i < 6; ++i)
- ndev->dev_addr[i] = emacdata->mac_addr[i];
-
- /* Set some link defaults before we can find out real parameters */
- dev->phy.speed = SPEED_100;
- dev->phy.duplex = DUPLEX_FULL;
- dev->phy.autoneg = AUTONEG_DISABLE;
- dev->phy.pause = dev->phy.asym_pause = 0;
- dev->stop_timeout = STOP_TIMEOUT_100;
- init_timer(&dev->link_timer);
- dev->link_timer.function = emac_link_timer;
- dev->link_timer.data = (unsigned long)dev;
-
- /* Find PHY if any */
- dev->phy.dev = ndev;
- dev->phy.mode = emacdata->phy_mode;
- if (emacdata->phy_map != 0xffffffff) {
- u32 phy_map = emacdata->phy_map | busy_phy_map;
- u32 adv;
-
- DBG("%d: PHY maps %08x %08x" NL, dev->def->index,
- emacdata->phy_map, busy_phy_map);
-
- EMAC_RX_CLK_TX(dev->def->index);
-
- dev->phy.mdio_read = emac_mdio_read;
- dev->phy.mdio_write = emac_mdio_write;
-
- /* Configure EMAC with defaults so we can at least use MDIO
- * This is needed mostly for 440GX
- */
- if (emac_phy_gpcs(dev->phy.mode)) {
- /* XXX
- * Make GPCS PHY address equal to EMAC index.
- * We probably should take into account busy_phy_map
- * and/or phy_map here.
- */
- dev->phy.address = dev->def->index;
- }
-
- emac_configure(dev);
-
- for (i = 0; i < 0x20; phy_map >>= 1, ++i)
- if (!(phy_map & 1)) {
- int r;
- busy_phy_map |= 1 << i;
-
- /* Quick check if there is a PHY at the address */
- r = emac_mdio_read(dev->ndev, i, MII_BMCR);
- if (r == 0xffff || r < 0)
- continue;
- if (!mii_phy_probe(&dev->phy, i))
- break;
- }
- if (i == 0x20) {
- printk(KERN_WARNING "emac%d: can't find PHY!\n",
- dev->def->index);
- goto out6;
- }
-
- /* Init PHY */
- if (dev->phy.def->ops->init)
- dev->phy.def->ops->init(&dev->phy);
-
- /* Disable any PHY features not supported by the platform */
- dev->phy.def->features &= ~emacdata->phy_feat_exc;
-
- /* Setup initial link parameters */
- if (dev->phy.features & SUPPORTED_Autoneg) {
- adv = dev->phy.features;
-#if !defined(CONFIG_40x)
- adv |= ADVERTISED_Pause | ADVERTISED_Asym_Pause;
-#endif
- /* Restart autonegotiation */
- dev->phy.def->ops->setup_aneg(&dev->phy, adv);
- } else {
- u32 f = dev->phy.def->features;
- int speed = SPEED_10, fd = DUPLEX_HALF;
-
- /* Select highest supported speed/duplex */
- if (f & SUPPORTED_1000baseT_Full) {
- speed = SPEED_1000;
- fd = DUPLEX_FULL;
- } else if (f & SUPPORTED_1000baseT_Half)
- speed = SPEED_1000;
- else if (f & SUPPORTED_100baseT_Full) {
- speed = SPEED_100;
- fd = DUPLEX_FULL;
- } else if (f & SUPPORTED_100baseT_Half)
- speed = SPEED_100;
- else if (f & SUPPORTED_10baseT_Full)
- fd = DUPLEX_FULL;
-
- /* Force link parameters */
- dev->phy.def->ops->setup_forced(&dev->phy, speed, fd);
- }
- } else {
- emac_reset(dev);
-
- /* PHY-less configuration.
- * XXX I probably should move these settings to emacdata
- */
- dev->phy.address = -1;
- dev->phy.features = SUPPORTED_100baseT_Full | SUPPORTED_MII;
- dev->phy.pause = 1;
- }
-
- /* Fill in the driver function table */
- ndev->open = &emac_open;
- if (dev->tah_dev) {
- ndev->hard_start_xmit = &emac_start_xmit_sg;
- ndev->features |= NETIF_F_IP_CSUM | NETIF_F_SG;
- } else
- ndev->hard_start_xmit = &emac_start_xmit;
- ndev->tx_timeout = &emac_full_tx_reset;
- ndev->watchdog_timeo = 5 * HZ;
- ndev->stop = &emac_close;
- ndev->get_stats = &emac_stats;
- ndev->set_multicast_list = &emac_set_multicast_list;
- ndev->do_ioctl = &emac_ioctl;
- if (emac_phy_supports_gige(emacdata->phy_mode)) {
- ndev->change_mtu = &emac_change_mtu;
- dev->commac.ops = &emac_commac_sg_ops;
- }
- SET_ETHTOOL_OPS(ndev, &emac_ethtool_ops);
-
- netif_carrier_off(ndev);
- netif_stop_queue(ndev);
-
- err = register_netdev(ndev);
- if (err) {
- printk(KERN_ERR "emac%d: failed to register net device (%d)!\n",
- dev->def->index, err);
- goto out6;
- }
-
- ocp_set_drvdata(ocpdev, dev);
-
- printk("%s: emac%d, MAC %s\n",
- ndev->name, dev->def->index, print_mac(mac, ndev->dev_addr));
-
- if (dev->phy.address >= 0)
- printk("%s: found %s PHY (0x%02x)\n", ndev->name,
- dev->phy.def->name, dev->phy.address);
-
- emac_dbg_register(dev->def->index, dev);
-
- return 0;
- out6:
- iounmap(dev->emacp);
- out5:
- tah_fini(dev->tah_dev);
- out4:
- rgmii_fini(dev->rgmii_dev, dev->rgmii_input);
- out3:
- zmii_fini(dev->zmii_dev, dev->zmii_input);
- out2:
- mal_unregister_commac(dev->mal, &dev->commac);
- out:
- kfree(ndev);
- return err;
-}
-
-static struct ocp_device_id emac_ids[] = {
- { .vendor = OCP_VENDOR_IBM, .function = OCP_FUNC_EMAC },
- { .vendor = OCP_VENDOR_INVALID}
-};
-
-static struct ocp_driver emac_driver = {
- .name = "emac",
- .id_table = emac_ids,
- .probe = emac_probe,
- .remove = emac_remove,
-};
-
-static int __init emac_init(void)
-{
- printk(KERN_INFO DRV_DESC ", version " DRV_VERSION "\n");
-
- DBG(": init" NL);
-
- if (mal_init())
- return -ENODEV;
-
- EMAC_CLK_INTERNAL;
- if (ocp_register_driver(&emac_driver)) {
- EMAC_CLK_EXTERNAL;
- ocp_unregister_driver(&emac_driver);
- mal_exit();
- return -ENODEV;
- }
- EMAC_CLK_EXTERNAL;
-
- emac_init_debug();
- return 0;
-}
-
-static void __exit emac_exit(void)
-{
- DBG(": exit" NL);
- ocp_unregister_driver(&emac_driver);
- mal_exit();
- emac_fini_debug();
-}
-
-module_init(emac_init);
-module_exit(emac_exit);
+++ /dev/null
-/*
- * drivers/net/ibm_emac/ibm_emac_core.h
- *
- * Driver for PowerPC 4xx on-chip ethernet controller.
- *
- * Copyright (c) 2004, 2005 Zultys Technologies.
- * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
- *
- * Based on original work by
- * Armin Kuster <akuster@mvista.com>
- * Johnnie Peters <jpeters@mvista.com>
- * Copyright 2000, 2001 MontaVista Softare Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-#ifndef __IBM_EMAC_CORE_H_
-#define __IBM_EMAC_CORE_H_
-
-#include <linux/netdevice.h>
-#include <linux/dma-mapping.h>
-#include <asm/ocp.h>
-
-#include "ibm_emac.h"
-#include "ibm_emac_phy.h"
-#include "ibm_emac_zmii.h"
-#include "ibm_emac_rgmii.h"
-#include "ibm_emac_mal.h"
-#include "ibm_emac_tah.h"
-
-#define NUM_TX_BUFF CONFIG_IBM_EMAC_TXB
-#define NUM_RX_BUFF CONFIG_IBM_EMAC_RXB
-
-/* Simple sanity check */
-#if NUM_TX_BUFF > 256 || NUM_RX_BUFF > 256
-#error Invalid number of buffer descriptors (greater than 256)
-#endif
-
-// XXX
-#define EMAC_MIN_MTU 46
-#define EMAC_MAX_MTU 9000
-
-/* Maximum L2 header length (VLAN tagged, no FCS) */
-#define EMAC_MTU_OVERHEAD (6 * 2 + 2 + 4)
-
-/* RX BD size for the given MTU */
-static inline int emac_rx_size(int mtu)
-{
- if (mtu > ETH_DATA_LEN)
- return MAL_MAX_RX_SIZE;
- else
- return mal_rx_size(ETH_DATA_LEN + EMAC_MTU_OVERHEAD);
-}
-
-#define EMAC_DMA_ALIGN(x) ALIGN((x), dma_get_cache_alignment())
-
-#define EMAC_RX_SKB_HEADROOM \
- EMAC_DMA_ALIGN(CONFIG_IBM_EMAC_RX_SKB_HEADROOM)
-
-/* Size of RX skb for the given MTU */
-static inline int emac_rx_skb_size(int mtu)
-{
- int size = max(mtu + EMAC_MTU_OVERHEAD, emac_rx_size(mtu));
- return EMAC_DMA_ALIGN(size + 2) + EMAC_RX_SKB_HEADROOM;
-}
-
-/* RX DMA sync size */
-static inline int emac_rx_sync_size(int mtu)
-{
- return EMAC_DMA_ALIGN(emac_rx_size(mtu) + 2);
-}
-
-/* Driver statistcs is split into two parts to make it more cache friendly:
- * - normal statistics (packet count, etc)
- * - error statistics
- *
- * When statistics is requested by ethtool, these parts are concatenated,
- * normal one goes first.
- *
- * Please, keep these structures in sync with emac_stats_keys.
- */
-
-/* Normal TX/RX Statistics */
-struct ibm_emac_stats {
- u64 rx_packets;
- u64 rx_bytes;
- u64 tx_packets;
- u64 tx_bytes;
- u64 rx_packets_csum;
- u64 tx_packets_csum;
-};
-
-/* Error statistics */
-struct ibm_emac_error_stats {
- u64 tx_undo;
-
- /* Software RX Errors */
- u64 rx_dropped_stack;
- u64 rx_dropped_oom;
- u64 rx_dropped_error;
- u64 rx_dropped_resize;
- u64 rx_dropped_mtu;
- u64 rx_stopped;
- /* BD reported RX errors */
- u64 rx_bd_errors;
- u64 rx_bd_overrun;
- u64 rx_bd_bad_packet;
- u64 rx_bd_runt_packet;
- u64 rx_bd_short_event;
- u64 rx_bd_alignment_error;
- u64 rx_bd_bad_fcs;
- u64 rx_bd_packet_too_long;
- u64 rx_bd_out_of_range;
- u64 rx_bd_in_range;
- /* EMAC IRQ reported RX errors */
- u64 rx_parity;
- u64 rx_fifo_overrun;
- u64 rx_overrun;
- u64 rx_bad_packet;
- u64 rx_runt_packet;
- u64 rx_short_event;
- u64 rx_alignment_error;
- u64 rx_bad_fcs;
- u64 rx_packet_too_long;
- u64 rx_out_of_range;
- u64 rx_in_range;
-
- /* Software TX Errors */
- u64 tx_dropped;
- /* BD reported TX errors */
- u64 tx_bd_errors;
- u64 tx_bd_bad_fcs;
- u64 tx_bd_carrier_loss;
- u64 tx_bd_excessive_deferral;
- u64 tx_bd_excessive_collisions;
- u64 tx_bd_late_collision;
- u64 tx_bd_multple_collisions;
- u64 tx_bd_single_collision;
- u64 tx_bd_underrun;
- u64 tx_bd_sqe;
- /* EMAC IRQ reported TX errors */
- u64 tx_parity;
- u64 tx_underrun;
- u64 tx_sqe;
- u64 tx_errors;
-};
-
-#define EMAC_ETHTOOL_STATS_COUNT ((sizeof(struct ibm_emac_stats) + \
- sizeof(struct ibm_emac_error_stats)) \
- / sizeof(u64))
-
-struct ocp_enet_private {
- struct net_device *ndev; /* 0 */
- struct emac_regs __iomem *emacp;
-
- struct mal_descriptor *tx_desc;
- int tx_cnt;
- int tx_slot;
- int ack_slot;
-
- struct mal_descriptor *rx_desc;
- int rx_slot;
- struct sk_buff *rx_sg_skb; /* 1 */
- int rx_skb_size;
- int rx_sync_size;
-
- struct ibm_emac_stats stats;
- struct ocp_device *tah_dev;
-
- struct ibm_ocp_mal *mal;
- struct mal_commac commac;
-
- struct sk_buff *tx_skb[NUM_TX_BUFF];
- struct sk_buff *rx_skb[NUM_RX_BUFF];
-
- struct ocp_device *zmii_dev;
- int zmii_input;
- struct ocp_enet_private *mdio_dev;
- struct ocp_device *rgmii_dev;
- int rgmii_input;
-
- struct ocp_def *def;
-
- struct mii_phy phy;
- struct timer_list link_timer;
- int reset_failed;
-
- int stop_timeout; /* in us */
-
- struct ibm_emac_error_stats estats;
- struct net_device_stats nstats;
-
- struct device* ldev;
-};
-
-/* Ethtool get_regs complex data.
- * We want to get not just EMAC registers, but also MAL, ZMII, RGMII, TAH
- * when available.
- *
- * Returned BLOB consists of the ibm_emac_ethtool_regs_hdr,
- * MAL registers, EMAC registers and optional ZMII, RGMII, TAH registers.
- * Each register component is preceded with emac_ethtool_regs_subhdr.
- * Order of the optional headers follows their relative bit posititions
- * in emac_ethtool_regs_hdr.components
- */
-#define EMAC_ETHTOOL_REGS_ZMII 0x00000001
-#define EMAC_ETHTOOL_REGS_RGMII 0x00000002
-#define EMAC_ETHTOOL_REGS_TAH 0x00000004
-
-struct emac_ethtool_regs_hdr {
- u32 components;
-};
-
-struct emac_ethtool_regs_subhdr {
- u32 version;
- u32 index;
-};
-
-#endif /* __IBM_EMAC_CORE_H_ */
+++ /dev/null
-/*
- * drivers/net/ibm_emac/ibm_emac_debug.c
- *
- * Driver for PowerPC 4xx on-chip ethernet controller, debug print routines.
- *
- * Copyright (c) 2004, 2005 Zultys Technologies
- * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/netdevice.h>
-#include <linux/sysrq.h>
-#include <asm/io.h>
-
-#include "ibm_emac_core.h"
-
-static void emac_desc_dump(int idx, struct ocp_enet_private *p)
-{
- int i;
- printk("** EMAC%d TX BDs **\n"
- " tx_cnt = %d tx_slot = %d ack_slot = %d\n",
- idx, p->tx_cnt, p->tx_slot, p->ack_slot);
- for (i = 0; i < NUM_TX_BUFF / 2; ++i)
- printk
- ("bd[%2d] 0x%08x %c 0x%04x %4u - bd[%2d] 0x%08x %c 0x%04x %4u\n",
- i, p->tx_desc[i].data_ptr, p->tx_skb[i] ? 'V' : ' ',
- p->tx_desc[i].ctrl, p->tx_desc[i].data_len,
- NUM_TX_BUFF / 2 + i,
- p->tx_desc[NUM_TX_BUFF / 2 + i].data_ptr,
- p->tx_skb[NUM_TX_BUFF / 2 + i] ? 'V' : ' ',
- p->tx_desc[NUM_TX_BUFF / 2 + i].ctrl,
- p->tx_desc[NUM_TX_BUFF / 2 + i].data_len);
-
- printk("** EMAC%d RX BDs **\n"
- " rx_slot = %d rx_stopped = %d rx_skb_size = %d rx_sync_size = %d\n"
- " rx_sg_skb = 0x%p\n",
- idx, p->rx_slot, p->commac.rx_stopped, p->rx_skb_size,
- p->rx_sync_size, p->rx_sg_skb);
- for (i = 0; i < NUM_RX_BUFF / 2; ++i)
- printk
- ("bd[%2d] 0x%08x %c 0x%04x %4u - bd[%2d] 0x%08x %c 0x%04x %4u\n",
- i, p->rx_desc[i].data_ptr, p->rx_skb[i] ? 'V' : ' ',
- p->rx_desc[i].ctrl, p->rx_desc[i].data_len,
- NUM_RX_BUFF / 2 + i,
- p->rx_desc[NUM_RX_BUFF / 2 + i].data_ptr,
- p->rx_skb[NUM_RX_BUFF / 2 + i] ? 'V' : ' ',
- p->rx_desc[NUM_RX_BUFF / 2 + i].ctrl,
- p->rx_desc[NUM_RX_BUFF / 2 + i].data_len);
-}
-
-static void emac_mac_dump(int idx, struct ocp_enet_private *dev)
-{
- struct emac_regs __iomem *p = dev->emacp;
-
- printk("** EMAC%d registers **\n"
- "MR0 = 0x%08x MR1 = 0x%08x TMR0 = 0x%08x TMR1 = 0x%08x\n"
- "RMR = 0x%08x ISR = 0x%08x ISER = 0x%08x\n"
- "IAR = %04x%08x VTPID = 0x%04x VTCI = 0x%04x\n"
- "IAHT: 0x%04x 0x%04x 0x%04x 0x%04x "
- "GAHT: 0x%04x 0x%04x 0x%04x 0x%04x\n"
- "LSA = %04x%08x IPGVR = 0x%04x\n"
- "STACR = 0x%08x TRTR = 0x%08x RWMR = 0x%08x\n"
- "OCTX = 0x%08x OCRX = 0x%08x IPCR = 0x%08x\n",
- idx, in_be32(&p->mr0), in_be32(&p->mr1),
- in_be32(&p->tmr0), in_be32(&p->tmr1),
- in_be32(&p->rmr), in_be32(&p->isr), in_be32(&p->iser),
- in_be32(&p->iahr), in_be32(&p->ialr), in_be32(&p->vtpid),
- in_be32(&p->vtci),
- in_be32(&p->iaht1), in_be32(&p->iaht2), in_be32(&p->iaht3),
- in_be32(&p->iaht4),
- in_be32(&p->gaht1), in_be32(&p->gaht2), in_be32(&p->gaht3),
- in_be32(&p->gaht4),
- in_be32(&p->lsah), in_be32(&p->lsal), in_be32(&p->ipgvr),
- in_be32(&p->stacr), in_be32(&p->trtr), in_be32(&p->rwmr),
- in_be32(&p->octx), in_be32(&p->ocrx), in_be32(&p->ipcr)
- );
-
- emac_desc_dump(idx, dev);
-}
-
-static void emac_mal_dump(struct ibm_ocp_mal *mal)
-{
- struct ocp_func_mal_data *maldata = mal->def->additions;
- int i;
-
- printk("** MAL%d Registers **\n"
- "CFG = 0x%08x ESR = 0x%08x IER = 0x%08x\n"
- "TX|CASR = 0x%08x CARR = 0x%08x EOBISR = 0x%08x DEIR = 0x%08x\n"
- "RX|CASR = 0x%08x CARR = 0x%08x EOBISR = 0x%08x DEIR = 0x%08x\n",
- mal->def->index,
- get_mal_dcrn(mal, MAL_CFG), get_mal_dcrn(mal, MAL_ESR),
- get_mal_dcrn(mal, MAL_IER),
- get_mal_dcrn(mal, MAL_TXCASR), get_mal_dcrn(mal, MAL_TXCARR),
- get_mal_dcrn(mal, MAL_TXEOBISR), get_mal_dcrn(mal, MAL_TXDEIR),
- get_mal_dcrn(mal, MAL_RXCASR), get_mal_dcrn(mal, MAL_RXCARR),
- get_mal_dcrn(mal, MAL_RXEOBISR), get_mal_dcrn(mal, MAL_RXDEIR)
- );
-
- printk("TX|");
- for (i = 0; i < maldata->num_tx_chans; ++i) {
- if (i && !(i % 4))
- printk("\n ");
- printk("CTP%d = 0x%08x ", i, get_mal_dcrn(mal, MAL_TXCTPR(i)));
- }
- printk("\nRX|");
- for (i = 0; i < maldata->num_rx_chans; ++i) {
- if (i && !(i % 4))
- printk("\n ");
- printk("CTP%d = 0x%08x ", i, get_mal_dcrn(mal, MAL_RXCTPR(i)));
- }
- printk("\n ");
- for (i = 0; i < maldata->num_rx_chans; ++i) {
- u32 r = get_mal_dcrn(mal, MAL_RCBS(i));
- if (i && !(i % 3))
- printk("\n ");
- printk("RCBS%d = 0x%08x (%d) ", i, r, r * 16);
- }
- printk("\n");
-}
-
-static struct ocp_enet_private *__emacs[4];
-static struct ibm_ocp_mal *__mals[1];
-
-void emac_dbg_register(int idx, struct ocp_enet_private *dev)
-{
- unsigned long flags;
-
- if (idx >= ARRAY_SIZE(__emacs)) {
- printk(KERN_WARNING
- "invalid index %d when registering EMAC for debugging\n",
- idx);
- return;
- }
-
- local_irq_save(flags);
- __emacs[idx] = dev;
- local_irq_restore(flags);
-}
-
-void mal_dbg_register(int idx, struct ibm_ocp_mal *mal)
-{
- unsigned long flags;
-
- if (idx >= ARRAY_SIZE(__mals)) {
- printk(KERN_WARNING
- "invalid index %d when registering MAL for debugging\n",
- idx);
- return;
- }
-
- local_irq_save(flags);
- __mals[idx] = mal;
- local_irq_restore(flags);
-}
-
-void emac_dbg_dump_all(void)
-{
- unsigned int i;
- unsigned long flags;
-
- local_irq_save(flags);
-
- for (i = 0; i < ARRAY_SIZE(__mals); ++i)
- if (__mals[i])
- emac_mal_dump(__mals[i]);
-
- for (i = 0; i < ARRAY_SIZE(__emacs); ++i)
- if (__emacs[i])
- emac_mac_dump(i, __emacs[i]);
-
- local_irq_restore(flags);
-}
-
-#if defined(CONFIG_MAGIC_SYSRQ)
-static void emac_sysrq_handler(int key, struct tty_struct *tty)
-{
- emac_dbg_dump_all();
-}
-
-static struct sysrq_key_op emac_sysrq_op = {
- .handler = emac_sysrq_handler,
- .help_msg = "emaC",
- .action_msg = "Show EMAC(s) status",
-};
-
-int __init emac_init_debug(void)
-{
- return register_sysrq_key('c', &emac_sysrq_op);
-}
-
-void __exit emac_fini_debug(void)
-{
- unregister_sysrq_key('c', &emac_sysrq_op);
-}
-
-#else
-int __init emac_init_debug(void)
-{
- return 0;
-}
-void __exit emac_fini_debug(void)
-{
-}
-#endif /* CONFIG_MAGIC_SYSRQ */
+++ /dev/null
-/*
- * drivers/net/ibm_emac/ibm_emac_debug.h
- *
- * Driver for PowerPC 4xx on-chip ethernet controller, debug print routines.
- *
- * Copyright (c) 2004, 2005 Zultys Technologies
- * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-#ifndef __IBM_EMAC_DEBUG_H_
-#define __IBM_EMAC_DEBUG_H_
-
-#include <linux/init.h>
-#include "ibm_emac_core.h"
-#include "ibm_emac_mal.h"
-
-#if defined(CONFIG_IBM_EMAC_DEBUG)
-void emac_dbg_register(int idx, struct ocp_enet_private *dev);
-void mal_dbg_register(int idx, struct ibm_ocp_mal *mal);
-int emac_init_debug(void) __init;
-void emac_fini_debug(void) __exit;
-void emac_dbg_dump_all(void);
-# define DBG_LEVEL 1
-#else
-# define emac_dbg_register(x,y) ((void)0)
-# define mal_dbg_register(x,y) ((void)0)
-# define emac_init_debug() ((void)0)
-# define emac_fini_debug() ((void)0)
-# define emac_dbg_dump_all() ((void)0)
-# define DBG_LEVEL 0
-#endif
-
-#if DBG_LEVEL > 0
-# define DBG(f,x...) printk("emac" f, ##x)
-# define MAL_DBG(f,x...) printk("mal" f, ##x)
-# define ZMII_DBG(f,x...) printk("zmii" f, ##x)
-# define RGMII_DBG(f,x...) printk("rgmii" f, ##x)
-# define NL "\n"
-#else
-# define DBG(f,x...) ((void)0)
-# define MAL_DBG(f,x...) ((void)0)
-# define ZMII_DBG(f,x...) ((void)0)
-# define RGMII_DBG(f,x...) ((void)0)
-#endif
-#if DBG_LEVEL > 1
-# define DBG2(f,x...) DBG(f, ##x)
-# define MAL_DBG2(f,x...) MAL_DBG(f, ##x)
-# define ZMII_DBG2(f,x...) ZMII_DBG(f, ##x)
-# define RGMII_DBG2(f,x...) RGMII_DBG(f, ##x)
-#else
-# define DBG2(f,x...) ((void)0)
-# define MAL_DBG2(f,x...) ((void)0)
-# define ZMII_DBG2(f,x...) ((void)0)
-# define RGMII_DBG2(f,x...) ((void)0)
-#endif
-
-#endif /* __IBM_EMAC_DEBUG_H_ */
+++ /dev/null
-/*
- * drivers/net/ibm_emac/ibm_emac_mal.c
- *
- * Memory Access Layer (MAL) support
- *
- * Copyright (c) 2004, 2005 Zultys Technologies.
- * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
- *
- * Based on original work by
- * Benjamin Herrenschmidt <benh@kernel.crashing.org>,
- * David Gibson <hermes@gibson.dropbear.id.au>,
- *
- * Armin Kuster <akuster@mvista.com>
- * Copyright 2002 MontaVista Softare Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/netdevice.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/dma-mapping.h>
-
-#include <asm/ocp.h>
-
-#include "ibm_emac_core.h"
-#include "ibm_emac_mal.h"
-#include "ibm_emac_debug.h"
-
-int __init mal_register_commac(struct ibm_ocp_mal *mal,
- struct mal_commac *commac)
-{
- unsigned long flags;
- local_irq_save(flags);
-
- MAL_DBG("%d: reg(%08x, %08x)" NL, mal->def->index,
- commac->tx_chan_mask, commac->rx_chan_mask);
-
- /* Don't let multiple commacs claim the same channel(s) */
- if ((mal->tx_chan_mask & commac->tx_chan_mask) ||
- (mal->rx_chan_mask & commac->rx_chan_mask)) {
- local_irq_restore(flags);
- printk(KERN_WARNING "mal%d: COMMAC channels conflict!\n",
- mal->def->index);
- return -EBUSY;
- }
-
- mal->tx_chan_mask |= commac->tx_chan_mask;
- mal->rx_chan_mask |= commac->rx_chan_mask;
- list_add(&commac->list, &mal->list);
-
- local_irq_restore(flags);
- return 0;
-}
-
-void mal_unregister_commac(struct ibm_ocp_mal *mal, struct mal_commac *commac)
-{
- unsigned long flags;
- local_irq_save(flags);
-
- MAL_DBG("%d: unreg(%08x, %08x)" NL, mal->def->index,
- commac->tx_chan_mask, commac->rx_chan_mask);
-
- mal->tx_chan_mask &= ~commac->tx_chan_mask;
- mal->rx_chan_mask &= ~commac->rx_chan_mask;
- list_del_init(&commac->list);
-
- local_irq_restore(flags);
-}
-
-int mal_set_rcbs(struct ibm_ocp_mal *mal, int channel, unsigned long size)
-{
- struct ocp_func_mal_data *maldata = mal->def->additions;
- BUG_ON(channel < 0 || channel >= maldata->num_rx_chans ||
- size > MAL_MAX_RX_SIZE);
-
- MAL_DBG("%d: set_rbcs(%d, %lu)" NL, mal->def->index, channel, size);
-
- if (size & 0xf) {
- printk(KERN_WARNING
- "mal%d: incorrect RX size %lu for the channel %d\n",
- mal->def->index, size, channel);
- return -EINVAL;
- }
-
- set_mal_dcrn(mal, MAL_RCBS(channel), size >> 4);
- return 0;
-}
-
-int mal_tx_bd_offset(struct ibm_ocp_mal *mal, int channel)
-{
- struct ocp_func_mal_data *maldata = mal->def->additions;
- BUG_ON(channel < 0 || channel >= maldata->num_tx_chans);
- return channel * NUM_TX_BUFF;
-}
-
-int mal_rx_bd_offset(struct ibm_ocp_mal *mal, int channel)
-{
- struct ocp_func_mal_data *maldata = mal->def->additions;
- BUG_ON(channel < 0 || channel >= maldata->num_rx_chans);
- return maldata->num_tx_chans * NUM_TX_BUFF + channel * NUM_RX_BUFF;
-}
-
-void mal_enable_tx_channel(struct ibm_ocp_mal *mal, int channel)
-{
- local_bh_disable();
- MAL_DBG("%d: enable_tx(%d)" NL, mal->def->index, channel);
- set_mal_dcrn(mal, MAL_TXCASR,
- get_mal_dcrn(mal, MAL_TXCASR) | MAL_CHAN_MASK(channel));
- local_bh_enable();
-}
-
-void mal_disable_tx_channel(struct ibm_ocp_mal *mal, int channel)
-{
- set_mal_dcrn(mal, MAL_TXCARR, MAL_CHAN_MASK(channel));
- MAL_DBG("%d: disable_tx(%d)" NL, mal->def->index, channel);
-}
-
-void mal_enable_rx_channel(struct ibm_ocp_mal *mal, int channel)
-{
- local_bh_disable();
- MAL_DBG("%d: enable_rx(%d)" NL, mal->def->index, channel);
- set_mal_dcrn(mal, MAL_RXCASR,
- get_mal_dcrn(mal, MAL_RXCASR) | MAL_CHAN_MASK(channel));
- local_bh_enable();
-}
-
-void mal_disable_rx_channel(struct ibm_ocp_mal *mal, int channel)
-{
- set_mal_dcrn(mal, MAL_RXCARR, MAL_CHAN_MASK(channel));
- MAL_DBG("%d: disable_rx(%d)" NL, mal->def->index, channel);
-}
-
-void mal_poll_add(struct ibm_ocp_mal *mal, struct mal_commac *commac)
-{
- local_bh_disable();
- MAL_DBG("%d: poll_add(%p)" NL, mal->def->index, commac);
- list_add_tail(&commac->poll_list, &mal->poll_list);
- local_bh_enable();
-}
-
-void mal_poll_del(struct ibm_ocp_mal *mal, struct mal_commac *commac)
-{
- local_bh_disable();
- MAL_DBG("%d: poll_del(%p)" NL, mal->def->index, commac);
- list_del(&commac->poll_list);
- local_bh_enable();
-}
-
-/* synchronized by mal_poll() */
-static inline void mal_enable_eob_irq(struct ibm_ocp_mal *mal)
-{
- MAL_DBG2("%d: enable_irq" NL, mal->def->index);
- set_mal_dcrn(mal, MAL_CFG, get_mal_dcrn(mal, MAL_CFG) | MAL_CFG_EOPIE);
-}
-
-/* synchronized by __LINK_STATE_RX_SCHED bit in ndev->state */
-static inline void mal_disable_eob_irq(struct ibm_ocp_mal *mal)
-{
- set_mal_dcrn(mal, MAL_CFG, get_mal_dcrn(mal, MAL_CFG) & ~MAL_CFG_EOPIE);
- MAL_DBG2("%d: disable_irq" NL, mal->def->index);
-}
-
-static irqreturn_t mal_serr(int irq, void *dev_instance)
-{
- struct ibm_ocp_mal *mal = dev_instance;
- u32 esr = get_mal_dcrn(mal, MAL_ESR);
-
- /* Clear the error status register */
- set_mal_dcrn(mal, MAL_ESR, esr);
-
- MAL_DBG("%d: SERR %08x" NL, mal->def->index, esr);
-
- if (esr & MAL_ESR_EVB) {
- if (esr & MAL_ESR_DE) {
- /* We ignore Descriptor error,
- * TXDE or RXDE interrupt will be generated anyway.
- */
- return IRQ_HANDLED;
- }
-
- if (esr & MAL_ESR_PEIN) {
- /* PLB error, it's probably buggy hardware or
- * incorrect physical address in BD (i.e. bug)
- */
- if (net_ratelimit())
- printk(KERN_ERR
- "mal%d: system error, PLB (ESR = 0x%08x)\n",
- mal->def->index, esr);
- return IRQ_HANDLED;
- }
-
- /* OPB error, it's probably buggy hardware or incorrect EBC setup */
- if (net_ratelimit())
- printk(KERN_ERR
- "mal%d: system error, OPB (ESR = 0x%08x)\n",
- mal->def->index, esr);
- }
- return IRQ_HANDLED;
-}
-
-static inline void mal_schedule_poll(struct ibm_ocp_mal *mal)
-{
- if (likely(napi_schedule_prep(&mal->napi))) {
- MAL_DBG2("%d: schedule_poll" NL, mal->def->index);
- mal_disable_eob_irq(mal);
- __napi_schedule(&mal->napi);
- } else
- MAL_DBG2("%d: already in poll" NL, mal->def->index);
-}
-
-static irqreturn_t mal_txeob(int irq, void *dev_instance)
-{
- struct ibm_ocp_mal *mal = dev_instance;
- u32 r = get_mal_dcrn(mal, MAL_TXEOBISR);
- MAL_DBG2("%d: txeob %08x" NL, mal->def->index, r);
- mal_schedule_poll(mal);
- set_mal_dcrn(mal, MAL_TXEOBISR, r);
- return IRQ_HANDLED;
-}
-
-static irqreturn_t mal_rxeob(int irq, void *dev_instance)
-{
- struct ibm_ocp_mal *mal = dev_instance;
- u32 r = get_mal_dcrn(mal, MAL_RXEOBISR);
- MAL_DBG2("%d: rxeob %08x" NL, mal->def->index, r);
- mal_schedule_poll(mal);
- set_mal_dcrn(mal, MAL_RXEOBISR, r);
- return IRQ_HANDLED;
-}
-
-static irqreturn_t mal_txde(int irq, void *dev_instance)
-{
- struct ibm_ocp_mal *mal = dev_instance;
- u32 deir = get_mal_dcrn(mal, MAL_TXDEIR);
- set_mal_dcrn(mal, MAL_TXDEIR, deir);
-
- MAL_DBG("%d: txde %08x" NL, mal->def->index, deir);
-
- if (net_ratelimit())
- printk(KERN_ERR
- "mal%d: TX descriptor error (TXDEIR = 0x%08x)\n",
- mal->def->index, deir);
-
- return IRQ_HANDLED;
-}
-
-static irqreturn_t mal_rxde(int irq, void *dev_instance)
-{
- struct ibm_ocp_mal *mal = dev_instance;
- struct list_head *l;
- u32 deir = get_mal_dcrn(mal, MAL_RXDEIR);
-
- MAL_DBG("%d: rxde %08x" NL, mal->def->index, deir);
-
- list_for_each(l, &mal->list) {
- struct mal_commac *mc = list_entry(l, struct mal_commac, list);
- if (deir & mc->rx_chan_mask) {
- mc->rx_stopped = 1;
- mc->ops->rxde(mc->dev);
- }
- }
-
- mal_schedule_poll(mal);
- set_mal_dcrn(mal, MAL_RXDEIR, deir);
-
- return IRQ_HANDLED;
-}
-
-static int mal_poll(struct napi_struct *napi, int budget)
-{
- struct ibm_ocp_mal *mal = container_of(napi, struct ibm_ocp_mal, napi);
- struct list_head *l;
- int received = 0;
-
- MAL_DBG2("%d: poll(%d) %d ->" NL, mal->def->index, *budget,
- rx_work_limit);
- again:
- /* Process TX skbs */
- list_for_each(l, &mal->poll_list) {
- struct mal_commac *mc =
- list_entry(l, struct mal_commac, poll_list);
- mc->ops->poll_tx(mc->dev);
- }
-
- /* Process RX skbs.
- * We _might_ need something more smart here to enforce polling fairness.
- */
- list_for_each(l, &mal->poll_list) {
- struct mal_commac *mc =
- list_entry(l, struct mal_commac, poll_list);
- int n = mc->ops->poll_rx(mc->dev, budget);
- if (n) {
- received += n;
- budget -= n;
- if (budget <= 0)
- goto more_work; // XXX What if this is the last one ?
- }
- }
-
- /* We need to disable IRQs to protect from RXDE IRQ here */
- local_irq_disable();
- __napi_complete(napi);
- mal_enable_eob_irq(mal);
- local_irq_enable();
-
- /* Check for "rotting" packet(s) */
- list_for_each(l, &mal->poll_list) {
- struct mal_commac *mc =
- list_entry(l, struct mal_commac, poll_list);
- if (unlikely(mc->ops->peek_rx(mc->dev) || mc->rx_stopped)) {
- MAL_DBG2("%d: rotting packet" NL, mal->def->index);
- if (napi_reschedule(napi))
- mal_disable_eob_irq(mal);
- else
- MAL_DBG2("%d: already in poll list" NL,
- mal->def->index);
-
- if (budget > 0)
- goto again;
- else
- goto more_work;
- }
- mc->ops->poll_tx(mc->dev);
- }
-
- more_work:
- MAL_DBG2("%d: poll() %d <- %d" NL, mal->def->index, budget, received);
- return received;
-}
-
-static void mal_reset(struct ibm_ocp_mal *mal)
-{
- int n = 10;
- MAL_DBG("%d: reset" NL, mal->def->index);
-
- set_mal_dcrn(mal, MAL_CFG, MAL_CFG_SR);
-
- /* Wait for reset to complete (1 system clock) */
- while ((get_mal_dcrn(mal, MAL_CFG) & MAL_CFG_SR) && n)
- --n;
-
- if (unlikely(!n))
- printk(KERN_ERR "mal%d: reset timeout\n", mal->def->index);
-}
-
-int mal_get_regs_len(struct ibm_ocp_mal *mal)
-{
- return sizeof(struct emac_ethtool_regs_subhdr) +
- sizeof(struct ibm_mal_regs);
-}
-
-void *mal_dump_regs(struct ibm_ocp_mal *mal, void *buf)
-{
- struct emac_ethtool_regs_subhdr *hdr = buf;
- struct ibm_mal_regs *regs = (struct ibm_mal_regs *)(hdr + 1);
- struct ocp_func_mal_data *maldata = mal->def->additions;
- int i;
-
- hdr->version = MAL_VERSION;
- hdr->index = mal->def->index;
-
- regs->tx_count = maldata->num_tx_chans;
- regs->rx_count = maldata->num_rx_chans;
-
- regs->cfg = get_mal_dcrn(mal, MAL_CFG);
- regs->esr = get_mal_dcrn(mal, MAL_ESR);
- regs->ier = get_mal_dcrn(mal, MAL_IER);
- regs->tx_casr = get_mal_dcrn(mal, MAL_TXCASR);
- regs->tx_carr = get_mal_dcrn(mal, MAL_TXCARR);
- regs->tx_eobisr = get_mal_dcrn(mal, MAL_TXEOBISR);
- regs->tx_deir = get_mal_dcrn(mal, MAL_TXDEIR);
- regs->rx_casr = get_mal_dcrn(mal, MAL_RXCASR);
- regs->rx_carr = get_mal_dcrn(mal, MAL_RXCARR);
- regs->rx_eobisr = get_mal_dcrn(mal, MAL_RXEOBISR);
- regs->rx_deir = get_mal_dcrn(mal, MAL_RXDEIR);
-
- for (i = 0; i < regs->tx_count; ++i)
- regs->tx_ctpr[i] = get_mal_dcrn(mal, MAL_TXCTPR(i));
-
- for (i = 0; i < regs->rx_count; ++i) {
- regs->rx_ctpr[i] = get_mal_dcrn(mal, MAL_RXCTPR(i));
- regs->rcbs[i] = get_mal_dcrn(mal, MAL_RCBS(i));
- }
- return regs + 1;
-}
-
-static int __init mal_probe(struct ocp_device *ocpdev)
-{
- struct ibm_ocp_mal *mal;
- struct ocp_func_mal_data *maldata;
- int err = 0, i, bd_size;
-
- MAL_DBG("%d: probe" NL, ocpdev->def->index);
-
- maldata = ocpdev->def->additions;
- if (maldata == NULL) {
- printk(KERN_ERR "mal%d: missing additional data!\n",
- ocpdev->def->index);
- return -ENODEV;
- }
-
- mal = kzalloc(sizeof(struct ibm_ocp_mal), GFP_KERNEL);
- if (!mal) {
- printk(KERN_ERR
- "mal%d: out of memory allocating MAL structure!\n",
- ocpdev->def->index);
- return -ENOMEM;
- }
-
- /* XXX This only works for native dcr for now */
- mal->dcrhost = dcr_map(NULL, maldata->dcr_base, 0);
-
- mal->def = ocpdev->def;
-
- INIT_LIST_HEAD(&mal->poll_list);
- mal->napi.weight = CONFIG_IBM_EMAC_POLL_WEIGHT;
- mal->napi.poll = mal_poll;
-
- INIT_LIST_HEAD(&mal->list);
-
- /* Load power-on reset defaults */
- mal_reset(mal);
-
- /* Set the MAL configuration register */
- set_mal_dcrn(mal, MAL_CFG, MAL_CFG_DEFAULT | MAL_CFG_PLBB |
- MAL_CFG_OPBBL | MAL_CFG_LEA);
-
- mal_enable_eob_irq(mal);
-
- /* Allocate space for BD rings */
- BUG_ON(maldata->num_tx_chans <= 0 || maldata->num_tx_chans > 32);
- BUG_ON(maldata->num_rx_chans <= 0 || maldata->num_rx_chans > 32);
- bd_size = sizeof(struct mal_descriptor) *
- (NUM_TX_BUFF * maldata->num_tx_chans +
- NUM_RX_BUFF * maldata->num_rx_chans);
- mal->bd_virt =
- dma_alloc_coherent(&ocpdev->dev, bd_size, &mal->bd_dma, GFP_KERNEL);
-
- if (!mal->bd_virt) {
- printk(KERN_ERR
- "mal%d: out of memory allocating RX/TX descriptors!\n",
- mal->def->index);
- err = -ENOMEM;
- goto fail;
- }
- memset(mal->bd_virt, 0, bd_size);
-
- for (i = 0; i < maldata->num_tx_chans; ++i)
- set_mal_dcrn(mal, MAL_TXCTPR(i), mal->bd_dma +
- sizeof(struct mal_descriptor) *
- mal_tx_bd_offset(mal, i));
-
- for (i = 0; i < maldata->num_rx_chans; ++i)
- set_mal_dcrn(mal, MAL_RXCTPR(i), mal->bd_dma +
- sizeof(struct mal_descriptor) *
- mal_rx_bd_offset(mal, i));
-
- err = request_irq(maldata->serr_irq, mal_serr, 0, "MAL SERR", mal);
- if (err)
- goto fail2;
- err = request_irq(maldata->txde_irq, mal_txde, 0, "MAL TX DE", mal);
- if (err)
- goto fail3;
- err = request_irq(maldata->txeob_irq, mal_txeob, 0, "MAL TX EOB", mal);
- if (err)
- goto fail4;
- err = request_irq(maldata->rxde_irq, mal_rxde, 0, "MAL RX DE", mal);
- if (err)
- goto fail5;
- err = request_irq(maldata->rxeob_irq, mal_rxeob, 0, "MAL RX EOB", mal);
- if (err)
- goto fail6;
-
- /* Enable all MAL SERR interrupt sources */
- set_mal_dcrn(mal, MAL_IER, MAL_IER_EVENTS);
-
- /* Advertise this instance to the rest of the world */
- ocp_set_drvdata(ocpdev, mal);
-
- mal_dbg_register(mal->def->index, mal);
-
- printk(KERN_INFO "mal%d: initialized, %d TX channels, %d RX channels\n",
- mal->def->index, maldata->num_tx_chans, maldata->num_rx_chans);
- return 0;
-
- fail6:
- free_irq(maldata->rxde_irq, mal);
- fail5:
- free_irq(maldata->txeob_irq, mal);
- fail4:
- free_irq(maldata->txde_irq, mal);
- fail3:
- free_irq(maldata->serr_irq, mal);
- fail2:
- dma_free_coherent(&ocpdev->dev, bd_size, mal->bd_virt, mal->bd_dma);
- fail:
- kfree(mal);
- return err;
-}
-
-static void __exit mal_remove(struct ocp_device *ocpdev)
-{
- struct ibm_ocp_mal *mal = ocp_get_drvdata(ocpdev);
- struct ocp_func_mal_data *maldata = mal->def->additions;
-
- MAL_DBG("%d: remove" NL, mal->def->index);
-
- /* Synchronize with scheduled polling */
- napi_disable(&mal->napi);
-
- if (!list_empty(&mal->list)) {
- /* This is *very* bad */
- printk(KERN_EMERG
- "mal%d: commac list is not empty on remove!\n",
- mal->def->index);
- }
-
- ocp_set_drvdata(ocpdev, NULL);
-
- free_irq(maldata->serr_irq, mal);
- free_irq(maldata->txde_irq, mal);
- free_irq(maldata->txeob_irq, mal);
- free_irq(maldata->rxde_irq, mal);
- free_irq(maldata->rxeob_irq, mal);
-
- mal_reset(mal);
-
- mal_dbg_register(mal->def->index, NULL);
-
- dma_free_coherent(&ocpdev->dev,
- sizeof(struct mal_descriptor) *
- (NUM_TX_BUFF * maldata->num_tx_chans +
- NUM_RX_BUFF * maldata->num_rx_chans), mal->bd_virt,
- mal->bd_dma);
-
- kfree(mal);
-}
-
-/* Structure for a device driver */
-static struct ocp_device_id mal_ids[] = {
- { .vendor = OCP_VENDOR_IBM, .function = OCP_FUNC_MAL },
- { .vendor = OCP_VENDOR_INVALID}
-};
-
-static struct ocp_driver mal_driver = {
- .name = "mal",
- .id_table = mal_ids,
-
- .probe = mal_probe,
- .remove = mal_remove,
-};
-
-int __init mal_init(void)
-{
- MAL_DBG(": init" NL);
- return ocp_register_driver(&mal_driver);
-}
-
-void __exit mal_exit(void)
-{
- MAL_DBG(": exit" NL);
- ocp_unregister_driver(&mal_driver);
-}
+++ /dev/null
-/*
- * drivers/net/ibm_emac/ibm_emac_mal.h
- *
- * Memory Access Layer (MAL) support
- *
- * Copyright (c) 2004, 2005 Zultys Technologies.
- * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
- *
- * Based on original work by
- * Armin Kuster <akuster@mvista.com>
- * Copyright 2002 MontaVista Softare Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-#ifndef __IBM_EMAC_MAL_H_
-#define __IBM_EMAC_MAL_H_
-
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/netdevice.h>
-
-#include <asm/io.h>
-#include <asm/dcr.h>
-
-/*
- * These MAL "versions" probably aren't the real versions IBM uses for these
- * MAL cores, I assigned them just to make #ifdefs in this file nicer and
- * reflect the fact that 40x and 44x have slightly different MALs. --ebs
- */
-#if defined(CONFIG_405GP) || defined(CONFIG_405GPR) || defined(CONFIG_405EP) || \
- defined(CONFIG_440EP) || defined(CONFIG_440GR) || defined(CONFIG_NP405H)
-#define MAL_VERSION 1
-#elif defined(CONFIG_440GP) || defined(CONFIG_440GX) || defined(CONFIG_440SP) || \
- defined(CONFIG_440SPE)
-#define MAL_VERSION 2
-#else
-#error "Unknown SoC, please check chip manual and choose MAL 'version'"
-#endif
-
-/* MALx DCR registers */
-#define MAL_CFG 0x00
-#define MAL_CFG_SR 0x80000000
-#define MAL_CFG_PLBB 0x00004000
-#define MAL_CFG_OPBBL 0x00000080
-#define MAL_CFG_EOPIE 0x00000004
-#define MAL_CFG_LEA 0x00000002
-#define MAL_CFG_SD 0x00000001
-#if MAL_VERSION == 1
-#define MAL_CFG_PLBP_MASK 0x00c00000
-#define MAL_CFG_PLBP_10 0x00800000
-#define MAL_CFG_GA 0x00200000
-#define MAL_CFG_OA 0x00100000
-#define MAL_CFG_PLBLE 0x00080000
-#define MAL_CFG_PLBT_MASK 0x00078000
-#define MAL_CFG_DEFAULT (MAL_CFG_PLBP_10 | MAL_CFG_PLBT_MASK)
-#elif MAL_VERSION == 2
-#define MAL_CFG_RPP_MASK 0x00c00000
-#define MAL_CFG_RPP_10 0x00800000
-#define MAL_CFG_RMBS_MASK 0x00300000
-#define MAL_CFG_WPP_MASK 0x000c0000
-#define MAL_CFG_WPP_10 0x00080000
-#define MAL_CFG_WMBS_MASK 0x00030000
-#define MAL_CFG_PLBLE 0x00008000
-#define MAL_CFG_DEFAULT (MAL_CFG_RMBS_MASK | MAL_CFG_WMBS_MASK | \
- MAL_CFG_RPP_10 | MAL_CFG_WPP_10)
-#else
-#error "Unknown MAL version"
-#endif
-
-#define MAL_ESR 0x01
-#define MAL_ESR_EVB 0x80000000
-#define MAL_ESR_CIDT 0x40000000
-#define MAL_ESR_CID_MASK 0x3e000000
-#define MAL_ESR_CID_SHIFT 25
-#define MAL_ESR_DE 0x00100000
-#define MAL_ESR_OTE 0x00040000
-#define MAL_ESR_OSE 0x00020000
-#define MAL_ESR_PEIN 0x00010000
-#define MAL_ESR_DEI 0x00000010
-#define MAL_ESR_OTEI 0x00000004
-#define MAL_ESR_OSEI 0x00000002
-#define MAL_ESR_PBEI 0x00000001
-#if MAL_VERSION == 1
-#define MAL_ESR_ONE 0x00080000
-#define MAL_ESR_ONEI 0x00000008
-#elif MAL_VERSION == 2
-#define MAL_ESR_PTE 0x00800000
-#define MAL_ESR_PRE 0x00400000
-#define MAL_ESR_PWE 0x00200000
-#define MAL_ESR_PTEI 0x00000080
-#define MAL_ESR_PREI 0x00000040
-#define MAL_ESR_PWEI 0x00000020
-#else
-#error "Unknown MAL version"
-#endif
-
-#define MAL_IER 0x02
-#define MAL_IER_DE 0x00000010
-#define MAL_IER_OTE 0x00000004
-#define MAL_IER_OE 0x00000002
-#define MAL_IER_PE 0x00000001
-#if MAL_VERSION == 1
-#define MAL_IER_NWE 0x00000008
-#define MAL_IER_SOC_EVENTS MAL_IER_NWE
-#elif MAL_VERSION == 2
-#define MAL_IER_PT 0x00000080
-#define MAL_IER_PRE 0x00000040
-#define MAL_IER_PWE 0x00000020
-#define MAL_IER_SOC_EVENTS (MAL_IER_PT | MAL_IER_PRE | MAL_IER_PWE)
-#else
-#error "Unknown MAL version"
-#endif
-#define MAL_IER_EVENTS (MAL_IER_SOC_EVENTS | MAL_IER_OTE | \
- MAL_IER_OTE | MAL_IER_OE | MAL_IER_PE)
-
-#define MAL_TXCASR 0x04
-#define MAL_TXCARR 0x05
-#define MAL_TXEOBISR 0x06
-#define MAL_TXDEIR 0x07
-#define MAL_RXCASR 0x10
-#define MAL_RXCARR 0x11
-#define MAL_RXEOBISR 0x12
-#define MAL_RXDEIR 0x13
-#define MAL_TXCTPR(n) ((n) + 0x20)
-#define MAL_RXCTPR(n) ((n) + 0x40)
-#define MAL_RCBS(n) ((n) + 0x60)
-
-/* In reality MAL can handle TX buffers up to 4095 bytes long,
- * but this isn't a good round number :) --ebs
- */
-#define MAL_MAX_TX_SIZE 4080
-#define MAL_MAX_RX_SIZE 4080
-
-static inline int mal_rx_size(int len)
-{
- len = (len + 0xf) & ~0xf;
- return len > MAL_MAX_RX_SIZE ? MAL_MAX_RX_SIZE : len;
-}
-
-static inline int mal_tx_chunks(int len)
-{
- return (len + MAL_MAX_TX_SIZE - 1) / MAL_MAX_TX_SIZE;
-}
-
-#define MAL_CHAN_MASK(n) (0x80000000 >> (n))
-
-/* MAL Buffer Descriptor structure */
-struct mal_descriptor {
- u16 ctrl; /* MAL / Commac status control bits */
- u16 data_len; /* Max length is 4K-1 (12 bits) */
- u32 data_ptr; /* pointer to actual data buffer */
-};
-
-/* the following defines are for the MadMAL status and control registers. */
-/* MADMAL transmit and receive status/control bits */
-#define MAL_RX_CTRL_EMPTY 0x8000
-#define MAL_RX_CTRL_WRAP 0x4000
-#define MAL_RX_CTRL_CM 0x2000
-#define MAL_RX_CTRL_LAST 0x1000
-#define MAL_RX_CTRL_FIRST 0x0800
-#define MAL_RX_CTRL_INTR 0x0400
-#define MAL_RX_CTRL_SINGLE (MAL_RX_CTRL_LAST | MAL_RX_CTRL_FIRST)
-#define MAL_IS_SINGLE_RX(ctrl) (((ctrl) & MAL_RX_CTRL_SINGLE) == MAL_RX_CTRL_SINGLE)
-
-#define MAL_TX_CTRL_READY 0x8000
-#define MAL_TX_CTRL_WRAP 0x4000
-#define MAL_TX_CTRL_CM 0x2000
-#define MAL_TX_CTRL_LAST 0x1000
-#define MAL_TX_CTRL_INTR 0x0400
-
-struct mal_commac_ops {
- void (*poll_tx) (void *dev);
- int (*poll_rx) (void *dev, int budget);
- int (*peek_rx) (void *dev);
- void (*rxde) (void *dev);
-};
-
-struct mal_commac {
- struct mal_commac_ops *ops;
- void *dev;
- struct list_head poll_list;
- int rx_stopped;
-
- u32 tx_chan_mask;
- u32 rx_chan_mask;
- struct list_head list;
-};
-
-struct ibm_ocp_mal {
- dcr_host_t dcrhost;
-
- struct list_head poll_list;
- struct napi_struct napi;
-
- struct list_head list;
- u32 tx_chan_mask;
- u32 rx_chan_mask;
-
- dma_addr_t bd_dma;
- struct mal_descriptor *bd_virt;
-
- struct ocp_def *def;
-};
-
-static inline u32 get_mal_dcrn(struct ibm_ocp_mal *mal, int reg)
-{
- return dcr_read(mal->dcrhost, reg);
-}
-
-static inline void set_mal_dcrn(struct ibm_ocp_mal *mal, int reg, u32 val)
-{
- dcr_write(mal->dcrhost, reg, val);
-}
-
-/* Register MAL devices */
-int mal_init(void) __init;
-void mal_exit(void) __exit;
-
-int mal_register_commac(struct ibm_ocp_mal *mal,
- struct mal_commac *commac) __init;
-void mal_unregister_commac(struct ibm_ocp_mal *mal, struct mal_commac *commac);
-int mal_set_rcbs(struct ibm_ocp_mal *mal, int channel, unsigned long size);
-
-/* Returns BD ring offset for a particular channel
- (in 'struct mal_descriptor' elements)
-*/
-int mal_tx_bd_offset(struct ibm_ocp_mal *mal, int channel);
-int mal_rx_bd_offset(struct ibm_ocp_mal *mal, int channel);
-
-void mal_enable_tx_channel(struct ibm_ocp_mal *mal, int channel);
-void mal_disable_tx_channel(struct ibm_ocp_mal *mal, int channel);
-void mal_enable_rx_channel(struct ibm_ocp_mal *mal, int channel);
-void mal_disable_rx_channel(struct ibm_ocp_mal *mal, int channel);
-
-/* Add/remove EMAC to/from MAL polling list */
-void mal_poll_add(struct ibm_ocp_mal *mal, struct mal_commac *commac);
-void mal_poll_del(struct ibm_ocp_mal *mal, struct mal_commac *commac);
-
-/* Ethtool MAL registers */
-struct ibm_mal_regs {
- u32 tx_count;
- u32 rx_count;
-
- u32 cfg;
- u32 esr;
- u32 ier;
- u32 tx_casr;
- u32 tx_carr;
- u32 tx_eobisr;
- u32 tx_deir;
- u32 rx_casr;
- u32 rx_carr;
- u32 rx_eobisr;
- u32 rx_deir;
- u32 tx_ctpr[32];
- u32 rx_ctpr[32];
- u32 rcbs[32];
-};
-
-int mal_get_regs_len(struct ibm_ocp_mal *mal);
-void *mal_dump_regs(struct ibm_ocp_mal *mal, void *buf);
-
-#endif /* __IBM_EMAC_MAL_H_ */
+++ /dev/null
-/*
- * drivers/net/ibm_emac/ibm_emac_phy.c
- *
- * Driver for PowerPC 4xx on-chip ethernet controller, PHY support.
- * Borrowed from sungem_phy.c, though I only kept the generic MII
- * driver for now.
- *
- * This file should be shared with other drivers or eventually
- * merged as the "low level" part of miilib
- *
- * (c) 2003, Benjamin Herrenscmidt (benh@kernel.crashing.org)
- * (c) 2004-2005, Eugene Surovegin <ebs@ebshome.net>
- *
- */
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/netdevice.h>
-#include <linux/mii.h>
-#include <linux/ethtool.h>
-#include <linux/delay.h>
-
-#include <asm/ocp.h>
-
-#include "ibm_emac_core.h"
-#include "ibm_emac_phy.h"
-
-static inline int phy_read(struct mii_phy *phy, int reg)
-{
- return phy->mdio_read(phy->dev, phy->address, reg);
-}
-
-static inline void phy_write(struct mii_phy *phy, int reg, int val)
-{
- phy->mdio_write(phy->dev, phy->address, reg, val);
-}
-
-/*
- * polls MII_BMCR until BMCR_RESET bit clears or operation times out.
- *
- * returns:
- * >= 0 => success, value in BMCR returned to caller
- * -EBUSY => failure, RESET bit never cleared
- * otherwise => failure, lower level PHY read failed
- */
-static int mii_spin_reset_complete(struct mii_phy *phy)
-{
- int val;
- int limit = 10000;
-
- while (limit--) {
- val = phy_read(phy, MII_BMCR);
- if (val >= 0 && !(val & BMCR_RESET))
- return val; /* success */
- udelay(10);
- }
- if (val & BMCR_RESET)
- val = -EBUSY;
-
- if (net_ratelimit())
- printk(KERN_ERR "emac%d: PHY reset timeout (%d)\n",
- ((struct ocp_enet_private *)phy->dev->priv)->def->index,
- val);
- return val;
-}
-
-int mii_reset_phy(struct mii_phy *phy)
-{
- int val;
-
- val = phy_read(phy, MII_BMCR);
- val &= ~BMCR_ISOLATE;
- val |= BMCR_RESET;
- phy_write(phy, MII_BMCR, val);
-
- udelay(300);
-
- val = mii_spin_reset_complete(phy);
- if (val >= 0 && (val & BMCR_ISOLATE))
- phy_write(phy, MII_BMCR, val & ~BMCR_ISOLATE);
-
- return val < 0;
-}
-
-static int genmii_setup_aneg(struct mii_phy *phy, u32 advertise)
-{
- int ctl, adv;
-
- phy->autoneg = AUTONEG_ENABLE;
- phy->speed = SPEED_10;
- phy->duplex = DUPLEX_HALF;
- phy->pause = phy->asym_pause = 0;
- phy->advertising = advertise;
-
- /* Setup standard advertise */
- adv = phy_read(phy, MII_ADVERTISE);
- if (adv < 0)
- return adv;
- adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4 | ADVERTISE_PAUSE_CAP |
- ADVERTISE_PAUSE_ASYM);
- if (advertise & ADVERTISED_10baseT_Half)
- adv |= ADVERTISE_10HALF;
- if (advertise & ADVERTISED_10baseT_Full)
- adv |= ADVERTISE_10FULL;
- if (advertise & ADVERTISED_100baseT_Half)
- adv |= ADVERTISE_100HALF;
- if (advertise & ADVERTISED_100baseT_Full)
- adv |= ADVERTISE_100FULL;
- if (advertise & ADVERTISED_Pause)
- adv |= ADVERTISE_PAUSE_CAP;
- if (advertise & ADVERTISED_Asym_Pause)
- adv |= ADVERTISE_PAUSE_ASYM;
- phy_write(phy, MII_ADVERTISE, adv);
-
- if (phy->features &
- (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseT_Half)) {
- adv = phy_read(phy, MII_CTRL1000);
- if (adv < 0)
- return adv;
- adv &= ~(ADVERTISE_1000FULL | ADVERTISE_1000HALF);
- if (advertise & ADVERTISED_1000baseT_Full)
- adv |= ADVERTISE_1000FULL;
- if (advertise & ADVERTISED_1000baseT_Half)
- adv |= ADVERTISE_1000HALF;
- phy_write(phy, MII_CTRL1000, adv);
- }
-
- /* Start/Restart aneg */
- /* on some PHYs (e.g. National DP83843) a write to MII_ADVERTISE
- * causes BMCR_RESET to be set on the next read of MII_BMCR, which
- * if not checked for causes the PHY to be reset below */
- ctl = mii_spin_reset_complete(phy);
- if (ctl < 0)
- return ctl;
-
- ctl |= BMCR_ANENABLE | BMCR_ANRESTART;
- phy_write(phy, MII_BMCR, ctl);
-
- return 0;
-}
-
-static int genmii_setup_forced(struct mii_phy *phy, int speed, int fd)
-{
- int ctl;
-
- phy->autoneg = AUTONEG_DISABLE;
- phy->speed = speed;
- phy->duplex = fd;
- phy->pause = phy->asym_pause = 0;
-
- /* First reset the PHY */
- mii_reset_phy(phy);
-
- ctl = phy_read(phy, MII_BMCR);
- if (ctl < 0)
- return ctl;
- ctl &= ~(BMCR_FULLDPLX | BMCR_SPEED100 | BMCR_ANENABLE | BMCR_SPEED1000);
-
- /* Select speed & duplex */
- switch (speed) {
- case SPEED_10:
- break;
- case SPEED_100:
- ctl |= BMCR_SPEED100;
- break;
- case SPEED_1000:
- ctl |= BMCR_SPEED1000;
- break;
- default:
- return -EINVAL;
- }
- if (fd == DUPLEX_FULL)
- ctl |= BMCR_FULLDPLX;
- phy_write(phy, MII_BMCR, ctl);
-
- return 0;
-}
-
-static int genmii_poll_link(struct mii_phy *phy)
-{
- int status;
-
- /* Clear latched value with dummy read */
- phy_read(phy, MII_BMSR);
- status = phy_read(phy, MII_BMSR);
- if (status < 0 || (status & BMSR_LSTATUS) == 0)
- return 0;
- if (phy->autoneg == AUTONEG_ENABLE && !(status & BMSR_ANEGCOMPLETE))
- return 0;
- return 1;
-}
-
-static int genmii_read_link(struct mii_phy *phy)
-{
- if (phy->autoneg == AUTONEG_ENABLE) {
- int glpa = 0;
- int lpa = phy_read(phy, MII_LPA) & phy_read(phy, MII_ADVERTISE);
- if (lpa < 0)
- return lpa;
-
- if (phy->features &
- (SUPPORTED_1000baseT_Full | SUPPORTED_1000baseT_Half)) {
- int adv = phy_read(phy, MII_CTRL1000);
- glpa = phy_read(phy, MII_STAT1000);
-
- if (glpa < 0 || adv < 0)
- return adv;
-
- glpa &= adv << 2;
- }
-
- phy->speed = SPEED_10;
- phy->duplex = DUPLEX_HALF;
- phy->pause = phy->asym_pause = 0;
-
- if (glpa & (LPA_1000FULL | LPA_1000HALF)) {
- phy->speed = SPEED_1000;
- if (glpa & LPA_1000FULL)
- phy->duplex = DUPLEX_FULL;
- } else if (lpa & (LPA_100FULL | LPA_100HALF)) {
- phy->speed = SPEED_100;
- if (lpa & LPA_100FULL)
- phy->duplex = DUPLEX_FULL;
- } else if (lpa & LPA_10FULL)
- phy->duplex = DUPLEX_FULL;
-
- if (phy->duplex == DUPLEX_FULL) {
- phy->pause = lpa & LPA_PAUSE_CAP ? 1 : 0;
- phy->asym_pause = lpa & LPA_PAUSE_ASYM ? 1 : 0;
- }
- } else {
- int bmcr = phy_read(phy, MII_BMCR);
- if (bmcr < 0)
- return bmcr;
-
- if (bmcr & BMCR_FULLDPLX)
- phy->duplex = DUPLEX_FULL;
- else
- phy->duplex = DUPLEX_HALF;
- if (bmcr & BMCR_SPEED1000)
- phy->speed = SPEED_1000;
- else if (bmcr & BMCR_SPEED100)
- phy->speed = SPEED_100;
- else
- phy->speed = SPEED_10;
-
- phy->pause = phy->asym_pause = 0;
- }
- return 0;
-}
-
-/* Generic implementation for most 10/100/1000 PHYs */
-static struct mii_phy_ops generic_phy_ops = {
- .setup_aneg = genmii_setup_aneg,
- .setup_forced = genmii_setup_forced,
- .poll_link = genmii_poll_link,
- .read_link = genmii_read_link
-};
-
-static struct mii_phy_def genmii_phy_def = {
- .phy_id = 0x00000000,
- .phy_id_mask = 0x00000000,
- .name = "Generic MII",
- .ops = &generic_phy_ops
-};
-
-/* CIS8201 */
-#define MII_CIS8201_10BTCSR 0x16
-#define TENBTCSR_ECHO_DISABLE 0x2000
-#define MII_CIS8201_EPCR 0x17
-#define EPCR_MODE_MASK 0x3000
-#define EPCR_GMII_MODE 0x0000
-#define EPCR_RGMII_MODE 0x1000
-#define EPCR_TBI_MODE 0x2000
-#define EPCR_RTBI_MODE 0x3000
-#define MII_CIS8201_ACSR 0x1c
-#define ACSR_PIN_PRIO_SELECT 0x0004
-
-static int cis8201_init(struct mii_phy *phy)
-{
- int epcr;
-
- epcr = phy_read(phy, MII_CIS8201_EPCR);
- if (epcr < 0)
- return epcr;
-
- epcr &= ~EPCR_MODE_MASK;
-
- switch (phy->mode) {
- case PHY_MODE_TBI:
- epcr |= EPCR_TBI_MODE;
- break;
- case PHY_MODE_RTBI:
- epcr |= EPCR_RTBI_MODE;
- break;
- case PHY_MODE_GMII:
- epcr |= EPCR_GMII_MODE;
- break;
- case PHY_MODE_RGMII:
- default:
- epcr |= EPCR_RGMII_MODE;
- }
-
- phy_write(phy, MII_CIS8201_EPCR, epcr);
-
- /* MII regs override strap pins */
- phy_write(phy, MII_CIS8201_ACSR,
- phy_read(phy, MII_CIS8201_ACSR) | ACSR_PIN_PRIO_SELECT);
-
- /* Disable TX_EN -> CRS echo mode, otherwise 10/HDX doesn't work */
- phy_write(phy, MII_CIS8201_10BTCSR,
- phy_read(phy, MII_CIS8201_10BTCSR) | TENBTCSR_ECHO_DISABLE);
-
- return 0;
-}
-
-static struct mii_phy_ops cis8201_phy_ops = {
- .init = cis8201_init,
- .setup_aneg = genmii_setup_aneg,
- .setup_forced = genmii_setup_forced,
- .poll_link = genmii_poll_link,
- .read_link = genmii_read_link
-};
-
-static struct mii_phy_def cis8201_phy_def = {
- .phy_id = 0x000fc410,
- .phy_id_mask = 0x000ffff0,
- .name = "CIS8201 Gigabit Ethernet",
- .ops = &cis8201_phy_ops
-};
-
-static struct mii_phy_def *mii_phy_table[] = {
- &cis8201_phy_def,
- &genmii_phy_def,
- NULL
-};
-
-int mii_phy_probe(struct mii_phy *phy, int address)
-{
- struct mii_phy_def *def;
- int i;
- int id;
-
- phy->autoneg = AUTONEG_DISABLE;
- phy->advertising = 0;
- phy->address = address;
- phy->speed = SPEED_10;
- phy->duplex = DUPLEX_HALF;
- phy->pause = phy->asym_pause = 0;
-
- /* Take PHY out of isolate mode and reset it. */
- if (mii_reset_phy(phy))
- return -ENODEV;
-
- /* Read ID and find matching entry */
- id = (phy_read(phy, MII_PHYSID1) << 16) | phy_read(phy, MII_PHYSID2);
- if (id < 0)
- return -ENODEV;
- for (i = 0; (def = mii_phy_table[i]) != NULL; i++)
- if ((id & def->phy_id_mask) == def->phy_id)
- break;
- /* Should never be NULL (we have a generic entry), but... */
- if (!def)
- return -ENODEV;
-
- phy->def = def;
-
- /* Determine PHY features if needed */
- phy->features = def->features;
- if (!phy->features) {
- u16 bmsr = phy_read(phy, MII_BMSR);
- if (bmsr & BMSR_ANEGCAPABLE)
- phy->features |= SUPPORTED_Autoneg;
- if (bmsr & BMSR_10HALF)
- phy->features |= SUPPORTED_10baseT_Half;
- if (bmsr & BMSR_10FULL)
- phy->features |= SUPPORTED_10baseT_Full;
- if (bmsr & BMSR_100HALF)
- phy->features |= SUPPORTED_100baseT_Half;
- if (bmsr & BMSR_100FULL)
- phy->features |= SUPPORTED_100baseT_Full;
- if (bmsr & BMSR_ESTATEN) {
- u16 esr = phy_read(phy, MII_ESTATUS);
- if (esr & ESTATUS_1000_TFULL)
- phy->features |= SUPPORTED_1000baseT_Full;
- if (esr & ESTATUS_1000_THALF)
- phy->features |= SUPPORTED_1000baseT_Half;
- }
- phy->features |= SUPPORTED_MII;
- }
-
- /* Setup default advertising */
- phy->advertising = phy->features;
-
- return 0;
-}
-
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * drivers/net/ibm_emac/ibm_emac_phy.h
- *
- * Driver for PowerPC 4xx on-chip ethernet controller, PHY support
- *
- * Benjamin Herrenschmidt <benh@kernel.crashing.org>
- * February 2003
- *
- * Minor additions by Eugene Surovegin <ebs@ebshome.net>, 2004
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This file basically duplicates sungem_phy.{c,h} with different PHYs
- * supported. I'm looking into merging that in a single mii layer more
- * flexible than mii.c
- */
-
-#ifndef _IBM_OCP_PHY_H_
-#define _IBM_OCP_PHY_H_
-
-struct mii_phy;
-
-/* Operations supported by any kind of PHY */
-struct mii_phy_ops {
- int (*init) (struct mii_phy * phy);
- int (*suspend) (struct mii_phy * phy, int wol_options);
- int (*setup_aneg) (struct mii_phy * phy, u32 advertise);
- int (*setup_forced) (struct mii_phy * phy, int speed, int fd);
- int (*poll_link) (struct mii_phy * phy);
- int (*read_link) (struct mii_phy * phy);
-};
-
-/* Structure used to statically define an mii/gii based PHY */
-struct mii_phy_def {
- u32 phy_id; /* Concatenated ID1 << 16 | ID2 */
- u32 phy_id_mask; /* Significant bits */
- u32 features; /* Ethtool SUPPORTED_* defines or
- 0 for autodetect */
- int magic_aneg; /* Autoneg does all speed test for us */
- const char *name;
- const struct mii_phy_ops *ops;
-};
-
-/* An instance of a PHY, partially borrowed from mii_if_info */
-struct mii_phy {
- struct mii_phy_def *def;
- u32 advertising; /* Ethtool ADVERTISED_* defines */
- u32 features; /* Copied from mii_phy_def.features
- or determined automaticaly */
- int address; /* PHY address */
- int mode; /* PHY mode */
-
- /* 1: autoneg enabled, 0: disabled */
- int autoneg;
-
- /* forced speed & duplex (no autoneg)
- * partner speed & duplex & pause (autoneg)
- */
- int speed;
- int duplex;
- int pause;
- int asym_pause;
-
- /* Provided by host chip */
- struct net_device *dev;
- int (*mdio_read) (struct net_device * dev, int addr, int reg);
- void (*mdio_write) (struct net_device * dev, int addr, int reg,
- int val);
-};
-
-/* Pass in a struct mii_phy with dev, mdio_read and mdio_write
- * filled, the remaining fields will be filled on return
- */
-int mii_phy_probe(struct mii_phy *phy, int address);
-int mii_reset_phy(struct mii_phy *phy);
-
-#endif /* _IBM_OCP_PHY_H_ */
+++ /dev/null
-/*
- * drivers/net/ibm_emac/ibm_emac_rgmii.c
- *
- * Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support.
- *
- * Copyright (c) 2004, 2005 Zultys Technologies.
- * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
- *
- * Based on original work by
- * Matt Porter <mporter@kernel.crashing.org>
- * Copyright 2004 MontaVista Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-#include <linux/kernel.h>
-#include <linux/ethtool.h>
-#include <asm/io.h>
-
-#include "ibm_emac_core.h"
-#include "ibm_emac_debug.h"
-
-/* RGMIIx_FER */
-#define RGMII_FER_MASK(idx) (0x7 << ((idx) * 4))
-#define RGMII_FER_RTBI(idx) (0x4 << ((idx) * 4))
-#define RGMII_FER_RGMII(idx) (0x5 << ((idx) * 4))
-#define RGMII_FER_TBI(idx) (0x6 << ((idx) * 4))
-#define RGMII_FER_GMII(idx) (0x7 << ((idx) * 4))
-
-/* RGMIIx_SSR */
-#define RGMII_SSR_MASK(idx) (0x7 << ((idx) * 8))
-#define RGMII_SSR_100(idx) (0x2 << ((idx) * 8))
-#define RGMII_SSR_1000(idx) (0x4 << ((idx) * 8))
-
-/* RGMII bridge supports only GMII/TBI and RGMII/RTBI PHYs */
-static inline int rgmii_valid_mode(int phy_mode)
-{
- return phy_mode == PHY_MODE_GMII ||
- phy_mode == PHY_MODE_RGMII ||
- phy_mode == PHY_MODE_TBI ||
- phy_mode == PHY_MODE_RTBI;
-}
-
-static inline const char *rgmii_mode_name(int mode)
-{
- switch (mode) {
- case PHY_MODE_RGMII:
- return "RGMII";
- case PHY_MODE_TBI:
- return "TBI";
- case PHY_MODE_GMII:
- return "GMII";
- case PHY_MODE_RTBI:
- return "RTBI";
- default:
- BUG();
- }
-}
-
-static inline u32 rgmii_mode_mask(int mode, int input)
-{
- switch (mode) {
- case PHY_MODE_RGMII:
- return RGMII_FER_RGMII(input);
- case PHY_MODE_TBI:
- return RGMII_FER_TBI(input);
- case PHY_MODE_GMII:
- return RGMII_FER_GMII(input);
- case PHY_MODE_RTBI:
- return RGMII_FER_RTBI(input);
- default:
- BUG();
- }
-}
-
-static int __init rgmii_init(struct ocp_device *ocpdev, int input, int mode)
-{
- struct ibm_ocp_rgmii *dev = ocp_get_drvdata(ocpdev);
- struct rgmii_regs *p;
-
- RGMII_DBG("%d: init(%d, %d)" NL, ocpdev->def->index, input, mode);
-
- if (!dev) {
- dev = kzalloc(sizeof(struct ibm_ocp_rgmii), GFP_KERNEL);
- if (!dev) {
- printk(KERN_ERR
- "rgmii%d: couldn't allocate device structure!\n",
- ocpdev->def->index);
- return -ENOMEM;
- }
-
- p = (struct rgmii_regs *)ioremap(ocpdev->def->paddr,
- sizeof(struct rgmii_regs));
- if (!p) {
- printk(KERN_ERR
- "rgmii%d: could not ioremap device registers!\n",
- ocpdev->def->index);
- kfree(dev);
- return -ENOMEM;
- }
-
- dev->base = p;
- ocp_set_drvdata(ocpdev, dev);
-
- /* Disable all inputs by default */
- out_be32(&p->fer, 0);
- } else
- p = dev->base;
-
- /* Enable this input */
- out_be32(&p->fer, in_be32(&p->fer) | rgmii_mode_mask(mode, input));
-
- printk(KERN_NOTICE "rgmii%d: input %d in %s mode\n",
- ocpdev->def->index, input, rgmii_mode_name(mode));
-
- ++dev->users;
- return 0;
-}
-
-int __init rgmii_attach(void *emac)
-{
- struct ocp_enet_private *dev = emac;
- struct ocp_func_emac_data *emacdata = dev->def->additions;
-
- /* Check if we need to attach to a RGMII */
- if (emacdata->rgmii_idx >= 0 && rgmii_valid_mode(emacdata->phy_mode)) {
- dev->rgmii_input = emacdata->rgmii_mux;
- dev->rgmii_dev =
- ocp_find_device(OCP_VENDOR_IBM, OCP_FUNC_RGMII,
- emacdata->rgmii_idx);
- if (!dev->rgmii_dev) {
- printk(KERN_ERR "emac%d: unknown rgmii%d!\n",
- dev->def->index, emacdata->rgmii_idx);
- return -ENODEV;
- }
- if (rgmii_init
- (dev->rgmii_dev, dev->rgmii_input, emacdata->phy_mode)) {
- printk(KERN_ERR
- "emac%d: rgmii%d initialization failed!\n",
- dev->def->index, emacdata->rgmii_idx);
- return -ENODEV;
- }
- }
- return 0;
-}
-
-void rgmii_set_speed(struct ocp_device *ocpdev, int input, int speed)
-{
- struct ibm_ocp_rgmii *dev = ocp_get_drvdata(ocpdev);
- u32 ssr = in_be32(&dev->base->ssr) & ~RGMII_SSR_MASK(input);
-
- RGMII_DBG("%d: speed(%d, %d)" NL, ocpdev->def->index, input, speed);
-
- if (speed == SPEED_1000)
- ssr |= RGMII_SSR_1000(input);
- else if (speed == SPEED_100)
- ssr |= RGMII_SSR_100(input);
-
- out_be32(&dev->base->ssr, ssr);
-}
-
-void __rgmii_fini(struct ocp_device *ocpdev, int input)
-{
- struct ibm_ocp_rgmii *dev = ocp_get_drvdata(ocpdev);
- BUG_ON(!dev || dev->users == 0);
-
- RGMII_DBG("%d: fini(%d)" NL, ocpdev->def->index, input);
-
- /* Disable this input */
- out_be32(&dev->base->fer,
- in_be32(&dev->base->fer) & ~RGMII_FER_MASK(input));
-
- if (!--dev->users) {
- /* Free everything if this is the last user */
- ocp_set_drvdata(ocpdev, NULL);
- iounmap((void *)dev->base);
- kfree(dev);
- }
-}
-
-int __rgmii_get_regs_len(struct ocp_device *ocpdev)
-{
- return sizeof(struct emac_ethtool_regs_subhdr) +
- sizeof(struct rgmii_regs);
-}
-
-void *rgmii_dump_regs(struct ocp_device *ocpdev, void *buf)
-{
- struct ibm_ocp_rgmii *dev = ocp_get_drvdata(ocpdev);
- struct emac_ethtool_regs_subhdr *hdr = buf;
- struct rgmii_regs *regs = (struct rgmii_regs *)(hdr + 1);
-
- hdr->version = 0;
- hdr->index = ocpdev->def->index;
- memcpy_fromio(regs, dev->base, sizeof(struct rgmii_regs));
- return regs + 1;
-}
+++ /dev/null
-/*
- * drivers/net/ibm_emac/ibm_emac_rgmii.h
- *
- * Driver for PowerPC 4xx on-chip ethernet controller, RGMII bridge support.
- *
- * Based on ocp_zmii.h/ibm_emac_zmii.h
- * Armin Kuster akuster@mvista.com
- *
- * Copyright 2004 MontaVista Software, Inc.
- * Matt Porter <mporter@kernel.crashing.org>
- *
- * Copyright (c) 2004, 2005 Zultys Technologies.
- * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#ifndef _IBM_EMAC_RGMII_H_
-#define _IBM_EMAC_RGMII_H_
-
-
-/* RGMII bridge */
-struct rgmii_regs {
- u32 fer; /* Function enable register */
- u32 ssr; /* Speed select register */
-};
-
-/* RGMII device */
-struct ibm_ocp_rgmii {
- struct rgmii_regs __iomem *base;
- int users; /* number of EMACs using this RGMII bridge */
-};
-
-#ifdef CONFIG_IBM_EMAC_RGMII
-int rgmii_attach(void *emac) __init;
-
-void __rgmii_fini(struct ocp_device *ocpdev, int input);
-static inline void rgmii_fini(struct ocp_device *ocpdev, int input)
-{
- if (ocpdev)
- __rgmii_fini(ocpdev, input);
-}
-
-void rgmii_set_speed(struct ocp_device *ocpdev, int input, int speed);
-
-int __rgmii_get_regs_len(struct ocp_device *ocpdev);
-static inline int rgmii_get_regs_len(struct ocp_device *ocpdev)
-{
- return ocpdev ? __rgmii_get_regs_len(ocpdev) : 0;
-}
-
-void *rgmii_dump_regs(struct ocp_device *ocpdev, void *buf);
-#else
-# define rgmii_attach(x) 0
-# define rgmii_fini(x,y) ((void)0)
-# define rgmii_set_speed(x,y,z) ((void)0)
-# define rgmii_get_regs_len(x) 0
-# define rgmii_dump_regs(x,buf) (buf)
-#endif /* !CONFIG_IBM_EMAC_RGMII */
-
-#endif /* _IBM_EMAC_RGMII_H_ */
+++ /dev/null
-/*
- * drivers/net/ibm_emac/ibm_emac_tah.c
- *
- * Driver for PowerPC 4xx on-chip ethernet controller, TAH support.
- *
- * Copyright 2004 MontaVista Software, Inc.
- * Matt Porter <mporter@kernel.crashing.org>
- *
- * Copyright (c) 2005 Eugene Surovegin <ebs@ebshome.net>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-#include <asm/io.h>
-
-#include "ibm_emac_core.h"
-
-static int __init tah_init(struct ocp_device *ocpdev)
-{
- struct tah_regs *p;
-
- if (ocp_get_drvdata(ocpdev)) {
- printk(KERN_ERR "tah%d: already in use!\n", ocpdev->def->index);
- return -EBUSY;
- }
-
- /* Initialize TAH and enable IPv4 checksum verification, no TSO yet */
- p = (struct tah_regs *)ioremap(ocpdev->def->paddr, sizeof(*p));
- if (!p) {
- printk(KERN_ERR "tah%d: could not ioremap device registers!\n",
- ocpdev->def->index);
- return -ENOMEM;
- }
- ocp_set_drvdata(ocpdev, p);
- __tah_reset(ocpdev);
-
- return 0;
-}
-
-int __init tah_attach(void *emac)
-{
- struct ocp_enet_private *dev = emac;
- struct ocp_func_emac_data *emacdata = dev->def->additions;
-
- /* Check if we need to attach to a TAH */
- if (emacdata->tah_idx >= 0) {
- dev->tah_dev = ocp_find_device(OCP_ANY_ID, OCP_FUNC_TAH,
- emacdata->tah_idx);
- if (!dev->tah_dev) {
- printk(KERN_ERR "emac%d: unknown tah%d!\n",
- dev->def->index, emacdata->tah_idx);
- return -ENODEV;
- }
- if (tah_init(dev->tah_dev)) {
- printk(KERN_ERR
- "emac%d: tah%d initialization failed!\n",
- dev->def->index, emacdata->tah_idx);
- return -ENODEV;
- }
- }
- return 0;
-}
-
-void __tah_fini(struct ocp_device *ocpdev)
-{
- struct tah_regs *p = ocp_get_drvdata(ocpdev);
- BUG_ON(!p);
- ocp_set_drvdata(ocpdev, NULL);
- iounmap((void *)p);
-}
-
-void __tah_reset(struct ocp_device *ocpdev)
-{
- struct tah_regs *p = ocp_get_drvdata(ocpdev);
- int n;
-
- /* Reset TAH */
- out_be32(&p->mr, TAH_MR_SR);
- n = 100;
- while ((in_be32(&p->mr) & TAH_MR_SR) && n)
- --n;
-
- if (unlikely(!n))
- printk(KERN_ERR "tah%d: reset timeout\n", ocpdev->def->index);
-
- /* 10KB TAH TX FIFO accomodates the max MTU of 9000 */
- out_be32(&p->mr,
- TAH_MR_CVR | TAH_MR_ST_768 | TAH_MR_TFS_10KB | TAH_MR_DTFP |
- TAH_MR_DIG);
-}
-
-int __tah_get_regs_len(struct ocp_device *ocpdev)
-{
- return sizeof(struct emac_ethtool_regs_subhdr) +
- sizeof(struct tah_regs);
-}
-
-void *tah_dump_regs(struct ocp_device *ocpdev, void *buf)
-{
- struct tah_regs *dev = ocp_get_drvdata(ocpdev);
- struct emac_ethtool_regs_subhdr *hdr = buf;
- struct tah_regs *regs = (struct tah_regs *)(hdr + 1);
-
- hdr->version = 0;
- hdr->index = ocpdev->def->index;
- memcpy_fromio(regs, dev, sizeof(struct tah_regs));
- return regs + 1;
-}
+++ /dev/null
-/*
- * drivers/net/ibm_emac/ibm_emac_tah.h
- *
- * Driver for PowerPC 4xx on-chip ethernet controller, TAH support.
- *
- * Copyright 2004 MontaVista Software, Inc.
- * Matt Porter <mporter@kernel.crashing.org>
- *
- * Copyright (c) 2005 Eugene Surovegin <ebs@ebshome.net>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#ifndef _IBM_EMAC_TAH_H
-#define _IBM_EMAC_TAH_H
-
-#include <linux/init.h>
-#include <asm/ocp.h>
-
-/* TAH */
-struct tah_regs {
- u32 revid;
- u32 pad[3];
- u32 mr;
- u32 ssr0;
- u32 ssr1;
- u32 ssr2;
- u32 ssr3;
- u32 ssr4;
- u32 ssr5;
- u32 tsr;
-};
-
-/* TAH engine */
-#define TAH_MR_CVR 0x80000000
-#define TAH_MR_SR 0x40000000
-#define TAH_MR_ST_256 0x01000000
-#define TAH_MR_ST_512 0x02000000
-#define TAH_MR_ST_768 0x03000000
-#define TAH_MR_ST_1024 0x04000000
-#define TAH_MR_ST_1280 0x05000000
-#define TAH_MR_ST_1536 0x06000000
-#define TAH_MR_TFS_16KB 0x00000000
-#define TAH_MR_TFS_2KB 0x00200000
-#define TAH_MR_TFS_4KB 0x00400000
-#define TAH_MR_TFS_6KB 0x00600000
-#define TAH_MR_TFS_8KB 0x00800000
-#define TAH_MR_TFS_10KB 0x00a00000
-#define TAH_MR_DTFP 0x00100000
-#define TAH_MR_DIG 0x00080000
-
-#ifdef CONFIG_IBM_EMAC_TAH
-int tah_attach(void *emac) __init;
-
-void __tah_fini(struct ocp_device *ocpdev);
-static inline void tah_fini(struct ocp_device *ocpdev)
-{
- if (ocpdev)
- __tah_fini(ocpdev);
-}
-
-void __tah_reset(struct ocp_device *ocpdev);
-static inline void tah_reset(struct ocp_device *ocpdev)
-{
- if (ocpdev)
- __tah_reset(ocpdev);
-}
-
-int __tah_get_regs_len(struct ocp_device *ocpdev);
-static inline int tah_get_regs_len(struct ocp_device *ocpdev)
-{
- return ocpdev ? __tah_get_regs_len(ocpdev) : 0;
-}
-
-void *tah_dump_regs(struct ocp_device *ocpdev, void *buf);
-#else
-# define tah_attach(x) 0
-# define tah_fini(x) ((void)0)
-# define tah_reset(x) ((void)0)
-# define tah_get_regs_len(x) 0
-# define tah_dump_regs(x,buf) (buf)
-#endif /* !CONFIG_IBM_EMAC_TAH */
-
-#endif /* _IBM_EMAC_TAH_H */
+++ /dev/null
-/*
- * drivers/net/ibm_emac/ibm_emac_zmii.c
- *
- * Driver for PowerPC 4xx on-chip ethernet controller, ZMII bridge support.
- *
- * Copyright (c) 2004, 2005 Zultys Technologies.
- * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
- *
- * Based on original work by
- * Armin Kuster <akuster@mvista.com>
- * Copyright 2001 MontaVista Softare Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-#include <linux/kernel.h>
-#include <linux/ethtool.h>
-#include <asm/io.h>
-
-#include "ibm_emac_core.h"
-#include "ibm_emac_debug.h"
-
-/* ZMIIx_FER */
-#define ZMII_FER_MDI(idx) (0x80000000 >> ((idx) * 4))
-#define ZMII_FER_MDI_ALL (ZMII_FER_MDI(0) | ZMII_FER_MDI(1) | \
- ZMII_FER_MDI(2) | ZMII_FER_MDI(3))
-
-#define ZMII_FER_SMII(idx) (0x40000000 >> ((idx) * 4))
-#define ZMII_FER_RMII(idx) (0x20000000 >> ((idx) * 4))
-#define ZMII_FER_MII(idx) (0x10000000 >> ((idx) * 4))
-
-/* ZMIIx_SSR */
-#define ZMII_SSR_SCI(idx) (0x40000000 >> ((idx) * 4))
-#define ZMII_SSR_FSS(idx) (0x20000000 >> ((idx) * 4))
-#define ZMII_SSR_SP(idx) (0x10000000 >> ((idx) * 4))
-
-/* ZMII only supports MII, RMII and SMII
- * we also support autodetection for backward compatibility
- */
-static inline int zmii_valid_mode(int mode)
-{
- return mode == PHY_MODE_MII ||
- mode == PHY_MODE_RMII ||
- mode == PHY_MODE_SMII ||
- mode == PHY_MODE_NA;
-}
-
-static inline const char *zmii_mode_name(int mode)
-{
- switch (mode) {
- case PHY_MODE_MII:
- return "MII";
- case PHY_MODE_RMII:
- return "RMII";
- case PHY_MODE_SMII:
- return "SMII";
- default:
- BUG();
- }
-}
-
-static inline u32 zmii_mode_mask(int mode, int input)
-{
- switch (mode) {
- case PHY_MODE_MII:
- return ZMII_FER_MII(input);
- case PHY_MODE_RMII:
- return ZMII_FER_RMII(input);
- case PHY_MODE_SMII:
- return ZMII_FER_SMII(input);
- default:
- return 0;
- }
-}
-
-static int __init zmii_init(struct ocp_device *ocpdev, int input, int *mode)
-{
- struct ibm_ocp_zmii *dev = ocp_get_drvdata(ocpdev);
- struct zmii_regs __iomem *p;
-
- ZMII_DBG("%d: init(%d, %d)" NL, ocpdev->def->index, input, *mode);
-
- if (!dev) {
- dev = kzalloc(sizeof(struct ibm_ocp_zmii), GFP_KERNEL);
- if (!dev) {
- printk(KERN_ERR
- "zmii%d: couldn't allocate device structure!\n",
- ocpdev->def->index);
- return -ENOMEM;
- }
- dev->mode = PHY_MODE_NA;
-
- p = ioremap(ocpdev->def->paddr, sizeof(struct zmii_regs));
- if (!p) {
- printk(KERN_ERR
- "zmii%d: could not ioremap device registers!\n",
- ocpdev->def->index);
- kfree(dev);
- return -ENOMEM;
- }
- dev->base = p;
- ocp_set_drvdata(ocpdev, dev);
-
- /* We may need FER value for autodetection later */
- dev->fer_save = in_be32(&p->fer);
-
- /* Disable all inputs by default */
- out_be32(&p->fer, 0);
- } else
- p = dev->base;
-
- if (!zmii_valid_mode(*mode)) {
- /* Probably an EMAC connected to RGMII,
- * but it still may need ZMII for MDIO
- */
- goto out;
- }
-
- /* Autodetect ZMII mode if not specified.
- * This is only for backward compatibility with the old driver.
- * Please, always specify PHY mode in your board port to avoid
- * any surprises.
- */
- if (dev->mode == PHY_MODE_NA) {
- if (*mode == PHY_MODE_NA) {
- u32 r = dev->fer_save;
-
- ZMII_DBG("%d: autodetecting mode, FER = 0x%08x" NL,
- ocpdev->def->index, r);
-
- if (r & (ZMII_FER_MII(0) | ZMII_FER_MII(1)))
- dev->mode = PHY_MODE_MII;
- else if (r & (ZMII_FER_RMII(0) | ZMII_FER_RMII(1)))
- dev->mode = PHY_MODE_RMII;
- else
- dev->mode = PHY_MODE_SMII;
- } else
- dev->mode = *mode;
-
- printk(KERN_NOTICE "zmii%d: bridge in %s mode\n",
- ocpdev->def->index, zmii_mode_name(dev->mode));
- } else {
- /* All inputs must use the same mode */
- if (*mode != PHY_MODE_NA && *mode != dev->mode) {
- printk(KERN_ERR
- "zmii%d: invalid mode %d specified for input %d\n",
- ocpdev->def->index, *mode, input);
- return -EINVAL;
- }
- }
-
- /* Report back correct PHY mode,
- * it may be used during PHY initialization.
- */
- *mode = dev->mode;
-
- /* Enable this input */
- out_be32(&p->fer, in_be32(&p->fer) | zmii_mode_mask(dev->mode, input));
- out:
- ++dev->users;
- return 0;
-}
-
-int __init zmii_attach(void *emac)
-{
- struct ocp_enet_private *dev = emac;
- struct ocp_func_emac_data *emacdata = dev->def->additions;
-
- if (emacdata->zmii_idx >= 0) {
- dev->zmii_input = emacdata->zmii_mux;
- dev->zmii_dev =
- ocp_find_device(OCP_VENDOR_IBM, OCP_FUNC_ZMII,
- emacdata->zmii_idx);
- if (!dev->zmii_dev) {
- printk(KERN_ERR "emac%d: unknown zmii%d!\n",
- dev->def->index, emacdata->zmii_idx);
- return -ENODEV;
- }
- if (zmii_init
- (dev->zmii_dev, dev->zmii_input, &emacdata->phy_mode)) {
- printk(KERN_ERR
- "emac%d: zmii%d initialization failed!\n",
- dev->def->index, emacdata->zmii_idx);
- return -ENODEV;
- }
- }
- return 0;
-}
-
-void __zmii_enable_mdio(struct ocp_device *ocpdev, int input)
-{
- struct ibm_ocp_zmii *dev = ocp_get_drvdata(ocpdev);
- u32 fer = in_be32(&dev->base->fer) & ~ZMII_FER_MDI_ALL;
-
- ZMII_DBG2("%d: mdio(%d)" NL, ocpdev->def->index, input);
-
- out_be32(&dev->base->fer, fer | ZMII_FER_MDI(input));
-}
-
-void __zmii_set_speed(struct ocp_device *ocpdev, int input, int speed)
-{
- struct ibm_ocp_zmii *dev = ocp_get_drvdata(ocpdev);
- u32 ssr = in_be32(&dev->base->ssr);
-
- ZMII_DBG("%d: speed(%d, %d)" NL, ocpdev->def->index, input, speed);
-
- if (speed == SPEED_100)
- ssr |= ZMII_SSR_SP(input);
- else
- ssr &= ~ZMII_SSR_SP(input);
-
- out_be32(&dev->base->ssr, ssr);
-}
-
-void __zmii_fini(struct ocp_device *ocpdev, int input)
-{
- struct ibm_ocp_zmii *dev = ocp_get_drvdata(ocpdev);
- BUG_ON(!dev || dev->users == 0);
-
- ZMII_DBG("%d: fini(%d)" NL, ocpdev->def->index, input);
-
- /* Disable this input */
- out_be32(&dev->base->fer,
- in_be32(&dev->base->fer) & ~zmii_mode_mask(dev->mode, input));
-
- if (!--dev->users) {
- /* Free everything if this is the last user */
- ocp_set_drvdata(ocpdev, NULL);
- iounmap(dev->base);
- kfree(dev);
- }
-}
-
-int __zmii_get_regs_len(struct ocp_device *ocpdev)
-{
- return sizeof(struct emac_ethtool_regs_subhdr) +
- sizeof(struct zmii_regs);
-}
-
-void *zmii_dump_regs(struct ocp_device *ocpdev, void *buf)
-{
- struct ibm_ocp_zmii *dev = ocp_get_drvdata(ocpdev);
- struct emac_ethtool_regs_subhdr *hdr = buf;
- struct zmii_regs *regs = (struct zmii_regs *)(hdr + 1);
-
- hdr->version = 0;
- hdr->index = ocpdev->def->index;
- memcpy_fromio(regs, dev->base, sizeof(struct zmii_regs));
- return regs + 1;
-}
+++ /dev/null
-/*
- * drivers/net/ibm_emac/ibm_emac_zmii.h
- *
- * Driver for PowerPC 4xx on-chip ethernet controller, ZMII bridge support.
- *
- * Copyright (c) 2004, 2005 Zultys Technologies.
- * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
- *
- * Based on original work by
- * Armin Kuster <akuster@mvista.com>
- * Copyright 2001 MontaVista Softare Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- */
-#ifndef _IBM_EMAC_ZMII_H_
-#define _IBM_EMAC_ZMII_H_
-
-#include <linux/init.h>
-#include <asm/ocp.h>
-
-/* ZMII bridge registers */
-struct zmii_regs {
- u32 fer; /* Function enable reg */
- u32 ssr; /* Speed select reg */
- u32 smiirs; /* SMII status reg */
-};
-
-/* ZMII device */
-struct ibm_ocp_zmii {
- struct zmii_regs __iomem *base;
- int mode; /* subset of PHY_MODE_XXXX */
- int users; /* number of EMACs using this ZMII bridge */
- u32 fer_save; /* FER value left by firmware */
-};
-
-#ifdef CONFIG_IBM_EMAC_ZMII
-int zmii_attach(void *emac) __init;
-
-void __zmii_fini(struct ocp_device *ocpdev, int input);
-static inline void zmii_fini(struct ocp_device *ocpdev, int input)
-{
- if (ocpdev)
- __zmii_fini(ocpdev, input);
-}
-
-void __zmii_enable_mdio(struct ocp_device *ocpdev, int input);
-static inline void zmii_enable_mdio(struct ocp_device *ocpdev, int input)
-{
- if (ocpdev)
- __zmii_enable_mdio(ocpdev, input);
-}
-
-void __zmii_set_speed(struct ocp_device *ocpdev, int input, int speed);
-static inline void zmii_set_speed(struct ocp_device *ocpdev, int input,
- int speed)
-{
- if (ocpdev)
- __zmii_set_speed(ocpdev, input, speed);
-}
-
-int __zmii_get_regs_len(struct ocp_device *ocpdev);
-static inline int zmii_get_regs_len(struct ocp_device *ocpdev)
-{
- return ocpdev ? __zmii_get_regs_len(ocpdev) : 0;
-}
-
-void *zmii_dump_regs(struct ocp_device *ocpdev, void *buf);
-
-#else
-# define zmii_attach(x) 0
-# define zmii_fini(x,y) ((void)0)
-# define zmii_enable_mdio(x,y) ((void)0)
-# define zmii_set_speed(x,y,z) ((void)0)
-# define zmii_get_regs_len(x) 0
-# define zmii_dump_regs(x,buf) (buf)
-#endif /* !CONFIG_IBM_EMAC_ZMII */
-
-#endif /* _IBM_EMAC_ZMII_H_ */
projects / platform / kernel / linux-stable.git / commitdiff