From 954a2f81775096fc5066632c979b0d8d83683b87 Mon Sep 17 00:00:00 2001 From: Tom Rini Date: Sun, 12 Dec 2021 22:12:26 -0500 Subject: [PATCH] pci: Remove unused FSL_PCI_INIT code The symbol CONFIG_FSL_PCI_INIT is no longer enabled anywhere, removed now unused code. Signed-off-by: Tom Rini --- board/xes/common/Makefile | 1 - board/xes/common/fsl_8xxx_pci.c | 22 - drivers/pci/Makefile | 1 - drivers/pci/fsl_pci_init.c | 936 ---------------------------------------- 4 files changed, 960 deletions(-) delete mode 100644 board/xes/common/fsl_8xxx_pci.c delete mode 100644 drivers/pci/fsl_pci_init.c diff --git a/board/xes/common/Makefile b/board/xes/common/Makefile index 4932030..0028219 100644 --- a/board/xes/common/Makefile +++ b/board/xes/common/Makefile @@ -3,7 +3,6 @@ # (C) Copyright 2006 # Wolfgang Denk, DENX Software Engineering, wd@denx.de. -obj-$(CONFIG_FSL_PCI_INIT) += fsl_8xxx_pci.o obj-$(CONFIG_MPC86xx) += fsl_8xxx_clk.o obj-$(CONFIG_ARCH_P2020) += fsl_8xxx_clk.o obj-$(CONFIG_MPC85xx) += fsl_8xxx_misc.o board.o diff --git a/board/xes/common/fsl_8xxx_pci.c b/board/xes/common/fsl_8xxx_pci.c deleted file mode 100644 index c1fce7d..0000000 --- a/board/xes/common/fsl_8xxx_pci.c +++ /dev/null @@ -1,22 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Copyright 2008 Extreme Engineering Solutions, Inc. - * Copyright 2007-2008 Freescale Semiconductor, Inc. - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#if defined(CONFIG_OF_BOARD_SETUP) -void ft_board_pci_setup(void *blob, struct bd_info *bd) -{ - FT_FSL_PCI_SETUP; -} -#endif /* CONFIG_OF_BOARD_SETUP */ diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile index 4a131bf..04f6236 100644 --- a/drivers/pci/Makefile +++ b/drivers/pci/Makefile @@ -13,7 +13,6 @@ obj-$(CONFIG_PCI) += pci_auto_common.o pci_common.o obj-$(CONFIG_PCIE_ECAM_GENERIC) += pcie_ecam_generic.o obj-$(CONFIG_PCIE_ECAM_SYNQUACER) += pcie_ecam_synquacer.o -obj-$(CONFIG_FSL_PCI_INIT) += fsl_pci_init.o obj-$(CONFIG_PCI_GT64120) += pci_gt64120.o obj-$(CONFIG_PCI_MPC85XX) += pci_mpc85xx.o obj-$(CONFIG_PCI_MSC01) += pci_msc01.o diff --git a/drivers/pci/fsl_pci_init.c b/drivers/pci/fsl_pci_init.c deleted file mode 100644 index c544af2..0000000 --- a/drivers/pci/fsl_pci_init.c +++ /dev/null @@ -1,936 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Copyright 2007-2012 Freescale Semiconductor, Inc. - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -DECLARE_GLOBAL_DATA_PTR; - -/* - * PCI/PCIE Controller initialization for mpc85xx/mpc86xx soc's - * - * Initialize controller and call the common driver/pci pci_hose_scan to - * scan for bridges and devices. - * - * Hose fields which need to be pre-initialized by board specific code: - * regions[] - * first_busno - * - * Fields updated: - * last_busno - */ - -#include -#include -#include - -#define MAX_PCI_REGIONS 7 - -#ifndef CONFIG_SYS_PCI_MEMORY_BUS -#define CONFIG_SYS_PCI_MEMORY_BUS 0 -#endif - -#ifndef CONFIG_SYS_PCI_MEMORY_PHYS -#define CONFIG_SYS_PCI_MEMORY_PHYS 0 -#endif - -#if defined(CONFIG_SYS_PCI_64BIT) && !defined(CONFIG_SYS_PCI64_MEMORY_BUS) -#define CONFIG_SYS_PCI64_MEMORY_BUS (64ull*1024*1024*1024) -#endif - -/* Setup one inbound ATMU window. - * - * We let the caller decide what the window size should be - */ -static void set_inbound_window(volatile pit_t *pi, - struct pci_region *r, - u64 size) -{ - u32 sz = (__ilog2_u64(size) - 1); -#ifdef CONFIG_SYS_FSL_ERRATUM_A005434 - u32 flag = 0; -#else - u32 flag = PIWAR_LOCAL; -#endif - - flag |= PIWAR_EN | PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP; - - out_be32(&pi->pitar, r->phys_start >> 12); - out_be32(&pi->piwbar, r->bus_start >> 12); -#ifdef CONFIG_SYS_PCI_64BIT - out_be32(&pi->piwbear, r->bus_start >> 44); -#else - out_be32(&pi->piwbear, 0); -#endif - if (r->flags & PCI_REGION_PREFETCH) - flag |= PIWAR_PF; - out_be32(&pi->piwar, flag | sz); -} - -int fsl_setup_hose(struct pci_controller *hose, unsigned long addr) -{ - volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) addr; - - /* Reset hose to make sure its in a clean state */ - memset(hose, 0, sizeof(struct pci_controller)); - - hose->regions = (struct pci_region *) - calloc(1, MAX_PCI_REGIONS * sizeof(struct pci_region)); - - pci_setup_indirect(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data); - - return fsl_is_pci_agent(hose); -} - -static int fsl_pci_setup_inbound_windows(struct pci_controller *hose, - u64 out_lo, u8 pcie_cap, - volatile pit_t *pi) -{ - struct pci_region *r = hose->regions + hose->region_count; - u64 sz = min((u64)gd->ram_size, (1ull << 32)); - - phys_addr_t phys_start = CONFIG_SYS_PCI_MEMORY_PHYS; - pci_addr_t bus_start = CONFIG_SYS_PCI_MEMORY_BUS; - pci_size_t pci_sz; - - /* we have no space available for inbound memory mapping */ - if (bus_start > out_lo) { - printf ("no space for inbound mapping of memory\n"); - return 0; - } - - /* limit size */ - if ((bus_start + sz) > out_lo) { - sz = out_lo - bus_start; - debug ("limiting size to %llx\n", sz); - } - - pci_sz = 1ull << __ilog2_u64(sz); - /* - * we can overlap inbound/outbound windows on PCI-E since RX & TX - * links a separate - */ - if ((pcie_cap == PCI_CAP_ID_EXP) && (pci_sz < sz)) { - debug ("R0 bus_start: %llx phys_start: %llx size: %llx\n", - (u64)bus_start, (u64)phys_start, (u64)sz); - pci_set_region(r, bus_start, phys_start, sz, - PCI_REGION_MEM | PCI_REGION_SYS_MEMORY | - PCI_REGION_PREFETCH); - - /* if we aren't an exact power of two match, pci_sz is smaller - * round it up to the next power of two. We report the actual - * size to pci region tracking. - */ - if (pci_sz != sz) - sz = 2ull << __ilog2_u64(sz); - - set_inbound_window(pi--, r++, sz); - sz = 0; /* make sure we dont set the R2 window */ - } else { - debug ("R0 bus_start: %llx phys_start: %llx size: %llx\n", - (u64)bus_start, (u64)phys_start, (u64)pci_sz); - pci_set_region(r, bus_start, phys_start, pci_sz, - PCI_REGION_MEM | PCI_REGION_SYS_MEMORY | - PCI_REGION_PREFETCH); - set_inbound_window(pi--, r++, pci_sz); - - sz -= pci_sz; - bus_start += pci_sz; - phys_start += pci_sz; - - pci_sz = 1ull << __ilog2_u64(sz); - if (sz) { - debug ("R1 bus_start: %llx phys_start: %llx size: %llx\n", - (u64)bus_start, (u64)phys_start, (u64)pci_sz); - pci_set_region(r, bus_start, phys_start, pci_sz, - PCI_REGION_MEM | PCI_REGION_SYS_MEMORY | - PCI_REGION_PREFETCH); - set_inbound_window(pi--, r++, pci_sz); - sz -= pci_sz; - bus_start += pci_sz; - phys_start += pci_sz; - } - } - -#if defined(CONFIG_PHYS_64BIT) && defined(CONFIG_SYS_PCI_64BIT) - /* - * On 64-bit capable systems, set up a mapping for all of DRAM - * in high pci address space. - */ - pci_sz = 1ull << __ilog2_u64(gd->ram_size); - /* round up to the next largest power of two */ - if (gd->ram_size > pci_sz) - pci_sz = 1ull << (__ilog2_u64(gd->ram_size) + 1); - debug ("R64 bus_start: %llx phys_start: %llx size: %llx\n", - (u64)CONFIG_SYS_PCI64_MEMORY_BUS, - (u64)CONFIG_SYS_PCI_MEMORY_PHYS, - (u64)pci_sz); - pci_set_region(r, - CONFIG_SYS_PCI64_MEMORY_BUS, - CONFIG_SYS_PCI_MEMORY_PHYS, - pci_sz, - PCI_REGION_MEM | PCI_REGION_SYS_MEMORY | - PCI_REGION_PREFETCH); - set_inbound_window(pi--, r++, pci_sz); -#else - pci_sz = 1ull << __ilog2_u64(sz); - if (sz) { - debug ("R2 bus_start: %llx phys_start: %llx size: %llx\n", - (u64)bus_start, (u64)phys_start, (u64)pci_sz); - pci_set_region(r, bus_start, phys_start, pci_sz, - PCI_REGION_MEM | PCI_REGION_SYS_MEMORY | - PCI_REGION_PREFETCH); - sz -= pci_sz; - bus_start += pci_sz; - phys_start += pci_sz; - set_inbound_window(pi--, r++, pci_sz); - } -#endif - -#ifdef CONFIG_PHYS_64BIT - if (sz && (((u64)gd->ram_size) < (1ull << 32))) - printf("Was not able to map all of memory via " - "inbound windows -- %lld remaining\n", sz); -#endif - - hose->region_count = r - hose->regions; - - return 1; -} - -#ifdef CONFIG_SRIO_PCIE_BOOT_MASTER -static void fsl_pcie_boot_master(pit_t *pi) -{ - /* configure inbound window for slave's u-boot image */ - debug("PCIEBOOT - MASTER: Inbound window for slave's image; " - "Local = 0x%llx, Bus = 0x%llx, Size = 0x%x\n", - (u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS, - (u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS1, - CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE); - struct pci_region r_inbound; - u32 sz_inbound = __ilog2_u64(CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE) - - 1; - pci_set_region(&r_inbound, - CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS1, - CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS, - sz_inbound, - PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); - - set_inbound_window(pi--, &r_inbound, - CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE); - - /* configure inbound window for slave's u-boot image */ - debug("PCIEBOOT - MASTER: Inbound window for slave's image; " - "Local = 0x%llx, Bus = 0x%llx, Size = 0x%x\n", - (u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS, - (u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS2, - CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE); - pci_set_region(&r_inbound, - CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS2, - CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS, - sz_inbound, - PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); - - set_inbound_window(pi--, &r_inbound, - CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE); - - /* configure inbound window for slave's ucode and ENV */ - debug("PCIEBOOT - MASTER: Inbound window for slave's " - "ucode and ENV; " - "Local = 0x%llx, Bus = 0x%llx, Size = 0x%x\n", - (u64)CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_PHYS, - (u64)CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_BUS, - CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_SIZE); - sz_inbound = __ilog2_u64(CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_SIZE) - - 1; - pci_set_region(&r_inbound, - CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_BUS, - CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_PHYS, - sz_inbound, - PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); - - set_inbound_window(pi--, &r_inbound, - CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_SIZE); -} - -static void fsl_pcie_boot_master_release_slave(int port) -{ - unsigned long release_addr; - - /* now release slave's core 0 */ - switch (port) { - case 1: - release_addr = CONFIG_SYS_PCIE1_MEM_VIRT - + CONFIG_SRIO_PCIE_BOOT_BRR_OFFSET; - break; -#ifdef CONFIG_SYS_PCIE2_MEM_VIRT - case 2: - release_addr = CONFIG_SYS_PCIE2_MEM_VIRT - + CONFIG_SRIO_PCIE_BOOT_BRR_OFFSET; - break; -#endif -#ifdef CONFIG_SYS_PCIE3_MEM_VIRT - case 3: - release_addr = CONFIG_SYS_PCIE3_MEM_VIRT - + CONFIG_SRIO_PCIE_BOOT_BRR_OFFSET; - break; -#endif - default: - release_addr = 0; - break; - } - if (release_addr != 0) { - out_be32((void *)release_addr, - CONFIG_SRIO_PCIE_BOOT_RELEASE_MASK); - debug("PCIEBOOT - MASTER: " - "Release slave successfully! Now the slave should start up!\n"); - } else { - debug("PCIEBOOT - MASTER: " - "Release slave failed!\n"); - } -} -#endif - -void fsl_pci_init(struct pci_controller *hose, struct fsl_pci_info *pci_info) -{ - u32 cfg_addr = (u32)&((ccsr_fsl_pci_t *)pci_info->regs)->cfg_addr; - u32 cfg_data = (u32)&((ccsr_fsl_pci_t *)pci_info->regs)->cfg_data; - u16 temp16; - u32 temp32; - u32 block_rev; - int enabled, r, inbound = 0; - u16 ltssm; - u8 temp8, pcie_cap; - int pcie_cap_pos; - int pci_dcr; - int pci_dsr; - int pci_lsr; - -#if defined(CONFIG_FSL_PCIE_DISABLE_ASPM) - int pci_lcr; -#endif - - volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *)cfg_addr; - struct pci_region *reg = hose->regions + hose->region_count; - pci_dev_t dev = PCI_BDF(hose->first_busno, 0, 0); - - /* Initialize ATMU registers based on hose regions and flags */ - volatile pot_t *po = &pci->pot[1]; /* skip 0 */ - volatile pit_t *pi; - - u64 out_hi = 0, out_lo = -1ULL; - u32 pcicsrbar, pcicsrbar_sz; - - pci_setup_indirect(hose, cfg_addr, cfg_data); - -#ifdef PEX_CCB_DIV - /* Configure the PCIE controller core clock ratio */ - pci_hose_write_config_dword(hose, dev, 0x440, - ((gd->bus_clk / 1000000) * - (16 / PEX_CCB_DIV)) / 333); -#endif - block_rev = in_be32(&pci->block_rev1); - if (PEX_IP_BLK_REV_2_2 <= block_rev) { - pi = &pci->pit[2]; /* 0xDC0 */ - } else { - pi = &pci->pit[3]; /* 0xDE0 */ - } - - /* Handle setup of outbound windows first */ - for (r = 0; r < hose->region_count; r++) { - unsigned long flags = hose->regions[r].flags; - u32 sz = (__ilog2_u64((u64)hose->regions[r].size) - 1); - - flags &= PCI_REGION_SYS_MEMORY|PCI_REGION_TYPE; - if (flags != PCI_REGION_SYS_MEMORY) { - u64 start = hose->regions[r].bus_start; - u64 end = start + hose->regions[r].size; - - out_be32(&po->powbar, hose->regions[r].phys_start >> 12); - out_be32(&po->potar, start >> 12); -#ifdef CONFIG_SYS_PCI_64BIT - out_be32(&po->potear, start >> 44); -#else - out_be32(&po->potear, 0); -#endif - if (hose->regions[r].flags & PCI_REGION_IO) { - out_be32(&po->powar, POWAR_EN | sz | - POWAR_IO_READ | POWAR_IO_WRITE); - } else { - out_be32(&po->powar, POWAR_EN | sz | - POWAR_MEM_READ | POWAR_MEM_WRITE); - out_lo = min(start, out_lo); - out_hi = max(end, out_hi); - } - po++; - } - } - debug("Outbound memory range: %llx:%llx\n", out_lo, out_hi); - - /* setup PCSRBAR/PEXCSRBAR */ - pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_0, 0xffffffff); - pci_hose_read_config_dword (hose, dev, PCI_BASE_ADDRESS_0, &pcicsrbar_sz); - pcicsrbar_sz = ~pcicsrbar_sz + 1; - - if (out_hi < (0x100000000ull - pcicsrbar_sz) || - (out_lo > 0x100000000ull)) - pcicsrbar = 0x100000000ull - pcicsrbar_sz; - else - pcicsrbar = (out_lo - pcicsrbar_sz) & -pcicsrbar_sz; - pci_hose_write_config_dword(hose, dev, PCI_BASE_ADDRESS_0, pcicsrbar); - - out_lo = min(out_lo, (u64)pcicsrbar); - - debug("PCICSRBAR @ 0x%x\n", pcicsrbar); - - pci_set_region(reg++, pcicsrbar, CONFIG_SYS_CCSRBAR_PHYS, - pcicsrbar_sz, PCI_REGION_SYS_MEMORY); - hose->region_count++; - - /* see if we are a PCIe or PCI controller */ - pcie_cap_pos = pci_hose_find_capability(hose, dev, PCI_CAP_ID_EXP); - pci_dcr = pcie_cap_pos + 0x08; - pci_dsr = pcie_cap_pos + 0x0a; - pci_lsr = pcie_cap_pos + 0x12; - - pci_hose_read_config_byte(hose, dev, pcie_cap_pos, &pcie_cap); - -#ifdef CONFIG_SRIO_PCIE_BOOT_MASTER - /* boot from PCIE --master */ - char *s = env_get("bootmaster"); - char pcie[6]; - sprintf(pcie, "PCIE%d", pci_info->pci_num); - - if (s && (strcmp(s, pcie) == 0)) { - debug("PCIEBOOT - MASTER: Master port [ %d ] for pcie boot.\n", - pci_info->pci_num); - fsl_pcie_boot_master((pit_t *)pi); - } else { - /* inbound */ - inbound = fsl_pci_setup_inbound_windows(hose, - out_lo, pcie_cap, pi); - } -#else - /* inbound */ - inbound = fsl_pci_setup_inbound_windows(hose, out_lo, pcie_cap, pi); -#endif - - for (r = 0; r < hose->region_count; r++) - debug("PCI reg:%d %016llx:%016llx %016llx %08lx\n", r, - (u64)hose->regions[r].phys_start, - (u64)hose->regions[r].bus_start, - (u64)hose->regions[r].size, - hose->regions[r].flags); - - pci_register_hose(hose); - pciauto_config_init(hose); /* grab pci_{mem,prefetch,io} */ - hose->current_busno = hose->first_busno; - - out_be32(&pci->pedr, 0xffffffff); /* Clear any errors */ - out_be32(&pci->peer, ~0x20140); /* Enable All Error Interrupts except - * - Master abort (pci) - * - Master PERR (pci) - * - ICCA (PCIe) - */ - pci_hose_read_config_dword(hose, dev, pci_dcr, &temp32); - temp32 |= 0xf000e; /* set URR, FER, NFER (but not CER) */ - pci_hose_write_config_dword(hose, dev, pci_dcr, temp32); - -#if defined(CONFIG_FSL_PCIE_DISABLE_ASPM) - pci_lcr = pcie_cap_pos + 0x10; - temp32 = 0; - pci_hose_read_config_dword(hose, dev, pci_lcr, &temp32); - temp32 &= ~0x03; /* Disable ASPM */ - pci_hose_write_config_dword(hose, dev, pci_lcr, temp32); - udelay(1); -#endif - if (pcie_cap == PCI_CAP_ID_EXP) { - if (block_rev >= PEX_IP_BLK_REV_3_0) { -#define PEX_CSR0_LTSSM_MASK 0xFC -#define PEX_CSR0_LTSSM_SHIFT 2 - ltssm = (in_be32(&pci->pex_csr0) - & PEX_CSR0_LTSSM_MASK) >> PEX_CSR0_LTSSM_SHIFT; - enabled = (ltssm == 0x11) ? 1 : 0; -#ifdef CONFIG_FSL_PCIE_RESET - int i; - /* assert PCIe reset */ - setbits_be32(&pci->pdb_stat, 0x08000000); - (void) in_be32(&pci->pdb_stat); - udelay(1000); - /* clear PCIe reset */ - clrbits_be32(&pci->pdb_stat, 0x08000000); - asm("sync;isync"); - for (i = 0; i < 100 && ltssm < PCI_LTSSM_L0; i++) { - pci_hose_read_config_word(hose, dev, PCI_LTSSM, - <ssm); - udelay(1000); - } -#endif - } else { - /* pci_hose_read_config_word(hose, dev, PCI_LTSSM, <ssm); */ - /* enabled = ltssm >= PCI_LTSSM_L0; */ - pci_hose_read_config_word(hose, dev, PCI_LTSSM, <ssm); - enabled = ltssm >= PCI_LTSSM_L0; - -#ifdef CONFIG_FSL_PCIE_RESET - if (ltssm == 1) { - int i; - debug("....PCIe link error. " "LTSSM=0x%02x.", ltssm); - /* assert PCIe reset */ - setbits_be32(&pci->pdb_stat, 0x08000000); - (void) in_be32(&pci->pdb_stat); - udelay(100); - debug(" Asserting PCIe reset @%p = %x\n", - &pci->pdb_stat, in_be32(&pci->pdb_stat)); - /* clear PCIe reset */ - clrbits_be32(&pci->pdb_stat, 0x08000000); - asm("sync;isync"); - for (i=0; i<100 && ltssm < PCI_LTSSM_L0; i++) { - pci_hose_read_config_word(hose, dev, PCI_LTSSM, - <ssm); - udelay(1000); - debug("....PCIe link error. " - "LTSSM=0x%02x.\n", ltssm); - } - enabled = ltssm >= PCI_LTSSM_L0; - - /* we need to re-write the bar0 since a reset will - * clear it - */ - pci_hose_write_config_dword(hose, dev, - PCI_BASE_ADDRESS_0, pcicsrbar); - } -#endif - } - -#ifdef CONFIG_SYS_P4080_ERRATUM_PCIE_A003 - if (enabled == 0) { - serdes_corenet_t *srds_regs = (void *)CONFIG_SYS_FSL_CORENET_SERDES_ADDR; - temp32 = in_be32(&srds_regs->srdspccr0); - - if ((temp32 >> 28) == 3) { - int i; - - out_be32(&srds_regs->srdspccr0, 2 << 28); - setbits_be32(&pci->pdb_stat, 0x08000000); - in_be32(&pci->pdb_stat); - udelay(100); - clrbits_be32(&pci->pdb_stat, 0x08000000); - asm("sync;isync"); - for (i=0; i < 100 && ltssm < PCI_LTSSM_L0; i++) { - pci_hose_read_config_word(hose, dev, PCI_LTSSM, <ssm); - udelay(1000); - } - enabled = ltssm >= PCI_LTSSM_L0; - } - } -#endif - if (!enabled) { - /* Let the user know there's no PCIe link for root - * complex. for endpoint, the link may not setup, so - * print undetermined. - */ - if (fsl_is_pci_agent(hose)) - printf("undetermined, regs @ 0x%lx\n", pci_info->regs); - else - printf("no link, regs @ 0x%lx\n", pci_info->regs); - hose->last_busno = hose->first_busno; - return; - } - - out_be32(&pci->pme_msg_det, 0xffffffff); - out_be32(&pci->pme_msg_int_en, 0xffffffff); - - /* Print the negotiated PCIe link width */ - pci_hose_read_config_word(hose, dev, pci_lsr, &temp16); - printf("x%d gen%d, regs @ 0x%lx\n", (temp16 & 0x3f0) >> 4, - (temp16 & 0xf), pci_info->regs); - - hose->current_busno++; /* Start scan with secondary */ - pciauto_prescan_setup_bridge(hose, dev, hose->current_busno); - } - -#ifdef CONFIG_SYS_FSL_ERRATUM_A007815 - /* The Read-Only Write Enable bit defaults to 1 instead of 0. - * Set to 0 to protect the read-only registers. - */ - clrbits_be32(&pci->dbi_ro_wr_en, 0x01); -#endif - - /* Use generic setup_device to initialize standard pci regs, - * but do not allocate any windows since any BAR found (such - * as PCSRBAR) is not in this cpu's memory space. - */ - pciauto_setup_device(hose, dev, 0, hose->pci_mem, - hose->pci_prefetch, hose->pci_io); - - if (inbound) { - pci_hose_read_config_word(hose, dev, PCI_COMMAND, &temp16); - pci_hose_write_config_word(hose, dev, PCI_COMMAND, - temp16 | PCI_COMMAND_MEMORY); - } - -#ifndef CONFIG_PCI_NOSCAN - if (!fsl_is_pci_agent(hose)) { - debug(" Scanning PCI bus %02x\n", - hose->current_busno); - hose->last_busno = pci_hose_scan_bus(hose, hose->current_busno); - } else { - debug(" Not scanning PCI bus %02x. PI=%x\n", - hose->current_busno, temp8); - hose->last_busno = hose->current_busno; - } - - /* if we are PCIe - update limit regs and subordinate busno - * for the virtual P2P bridge - */ - if (pcie_cap == PCI_CAP_ID_EXP) { - pciauto_postscan_setup_bridge(hose, dev, hose->last_busno); - } -#else - hose->last_busno = hose->current_busno; -#endif - - /* Clear all error indications */ - if (pcie_cap == PCI_CAP_ID_EXP) - out_be32(&pci->pme_msg_det, 0xffffffff); - out_be32(&pci->pedr, 0xffffffff); - - pci_hose_read_config_word(hose, dev, pci_dsr, &temp16); - if (temp16) { - pci_hose_write_config_word(hose, dev, pci_dsr, 0xffff); - } - - pci_hose_read_config_word (hose, dev, PCI_SEC_STATUS, &temp16); - if (temp16) { - pci_hose_write_config_word(hose, dev, PCI_SEC_STATUS, 0xffff); - } -} - -int fsl_is_pci_agent(struct pci_controller *hose) -{ - int pcie_cap_pos; - u8 pcie_cap; - pci_dev_t dev = PCI_BDF(hose->first_busno, 0, 0); - - pcie_cap_pos = pci_hose_find_capability(hose, dev, PCI_CAP_ID_EXP); - pci_hose_read_config_byte(hose, dev, pcie_cap_pos, &pcie_cap); - if (pcie_cap == PCI_CAP_ID_EXP) { - u8 header_type; - - pci_hose_read_config_byte(hose, dev, PCI_HEADER_TYPE, - &header_type); - return (header_type & 0x7f) == PCI_HEADER_TYPE_NORMAL; - } else { - u8 prog_if; - - pci_hose_read_config_byte(hose, dev, PCI_CLASS_PROG, &prog_if); - /* Programming Interface (PCI_CLASS_PROG) - * 0 == pci host or pcie root-complex, - * 1 == pci agent or pcie end-point - */ - return (prog_if == FSL_PROG_IF_AGENT); - } -} - -int fsl_pci_init_port(struct fsl_pci_info *pci_info, - struct pci_controller *hose, int busno) -{ - volatile ccsr_fsl_pci_t *pci; - struct pci_region *r; - pci_dev_t dev = PCI_BDF(busno,0,0); - int pcie_cap_pos; - u8 pcie_cap; - - pci = (ccsr_fsl_pci_t *) pci_info->regs; - - /* on non-PCIe controllers we don't have pme_msg_det so this code - * should do nothing since the read will return 0 - */ - if (in_be32(&pci->pme_msg_det)) { - out_be32(&pci->pme_msg_det, 0xffffffff); - debug (" with errors. Clearing. Now 0x%08x", - pci->pme_msg_det); - } - - r = hose->regions + hose->region_count; - - /* outbound memory */ - pci_set_region(r++, - pci_info->mem_bus, - pci_info->mem_phys, - pci_info->mem_size, - PCI_REGION_MEM); - - /* outbound io */ - pci_set_region(r++, - pci_info->io_bus, - pci_info->io_phys, - pci_info->io_size, - PCI_REGION_IO); - - hose->region_count = r - hose->regions; - hose->first_busno = busno; - - fsl_pci_init(hose, pci_info); - - if (fsl_is_pci_agent(hose)) { - fsl_pci_config_unlock(hose); - hose->last_busno = hose->first_busno; -#ifdef CONFIG_SRIO_PCIE_BOOT_MASTER - } else { - /* boot from PCIE --master releases slave's core 0 */ - char *s = env_get("bootmaster"); - char pcie[6]; - sprintf(pcie, "PCIE%d", pci_info->pci_num); - - if (s && (strcmp(s, pcie) == 0)) - fsl_pcie_boot_master_release_slave(pci_info->pci_num); -#endif - } - - pcie_cap_pos = pci_hose_find_capability(hose, dev, PCI_CAP_ID_EXP); - pci_hose_read_config_byte(hose, dev, pcie_cap_pos, &pcie_cap); - printf("PCI%s%x: Bus %02x - %02x\n", pcie_cap == PCI_CAP_ID_EXP ? - "e" : "", pci_info->pci_num, - hose->first_busno, hose->last_busno); - return(hose->last_busno + 1); -} - -/* Enable inbound PCI config cycles for agent/endpoint interface */ -void fsl_pci_config_unlock(struct pci_controller *hose) -{ - pci_dev_t dev = PCI_BDF(hose->first_busno,0,0); - int pcie_cap_pos; - u8 pcie_cap; - u16 pbfr; - - if (!fsl_is_pci_agent(hose)) - return; - - pcie_cap_pos = pci_hose_find_capability(hose, dev, PCI_CAP_ID_EXP); - pci_hose_read_config_byte(hose, dev, pcie_cap_pos, &pcie_cap); - if (pcie_cap != 0x0) { - ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *)hose->cfg_addr; - u32 block_rev = in_be32(&pci->block_rev1); - /* PCIe - set CFG_READY bit of Configuration Ready Register */ - if (block_rev >= PEX_IP_BLK_REV_3_0) - setbits_be32(&pci->config, FSL_PCIE_V3_CFG_RDY); - else - pci_hose_write_config_byte(hose, dev, - FSL_PCIE_CFG_RDY, 0x1); - } else { - /* PCI - clear ACL bit of PBFR */ - pci_hose_read_config_word(hose, dev, FSL_PCI_PBFR, &pbfr); - pbfr &= ~0x20; - pci_hose_write_config_word(hose, dev, FSL_PCI_PBFR, pbfr); - } -} - -#if defined(CONFIG_PCIE1) || defined(CONFIG_PCIE2) || \ - defined(CONFIG_PCIE3) || defined(CONFIG_PCIE4) -int fsl_configure_pcie(struct fsl_pci_info *info, - struct pci_controller *hose, - const char *connected, int busno) -{ - int is_endpoint; - - set_next_law(info->mem_phys, law_size_bits(info->mem_size), info->law); - set_next_law(info->io_phys, law_size_bits(info->io_size), info->law); - - is_endpoint = fsl_setup_hose(hose, info->regs); - printf("PCIe%u: %s", info->pci_num, - is_endpoint ? "Endpoint" : "Root Complex"); - if (connected) - printf(" of %s", connected); - puts(", "); - - return fsl_pci_init_port(info, hose, busno); -} - -#if defined(CONFIG_FSL_CORENET) -#ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2 - #define _DEVDISR_PCIE1 FSL_CORENET_DEVDISR3_PCIE1 - #define _DEVDISR_PCIE2 FSL_CORENET_DEVDISR3_PCIE2 - #define _DEVDISR_PCIE3 FSL_CORENET_DEVDISR3_PCIE3 - #define _DEVDISR_PCIE4 FSL_CORENET_DEVDISR3_PCIE4 -#else - #define _DEVDISR_PCIE1 FSL_CORENET_DEVDISR_PCIE1 - #define _DEVDISR_PCIE2 FSL_CORENET_DEVDISR_PCIE2 - #define _DEVDISR_PCIE3 FSL_CORENET_DEVDISR_PCIE3 - #define _DEVDISR_PCIE4 FSL_CORENET_DEVDISR_PCIE4 -#endif - #define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR -#elif defined(CONFIG_MPC85xx) - #define _DEVDISR_PCIE1 MPC85xx_DEVDISR_PCIE - #define _DEVDISR_PCIE2 MPC85xx_DEVDISR_PCIE2 - #define _DEVDISR_PCIE3 MPC85xx_DEVDISR_PCIE3 - #define _DEVDISR_PCIE4 0 - #define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR -#elif defined(CONFIG_MPC86xx) - #define _DEVDISR_PCIE1 MPC86xx_DEVDISR_PCIE1 - #define _DEVDISR_PCIE2 MPC86xx_DEVDISR_PCIE2 - #define _DEVDISR_PCIE3 0 - #define _DEVDISR_PCIE4 0 - #define CONFIG_SYS_MPC8xxx_GUTS_ADDR \ - (&((immap_t *)CONFIG_SYS_IMMR)->im_gur) -#else -#error "No defines for DEVDISR_PCIE" -#endif - -/* Implement a dummy function for those platforms w/o SERDES */ -static const char *__board_serdes_name(enum srds_prtcl device) -{ - switch (device) { -#ifdef CONFIG_SYS_PCIE1_NAME - case PCIE1: - return CONFIG_SYS_PCIE1_NAME; -#endif -#ifdef CONFIG_SYS_PCIE2_NAME - case PCIE2: - return CONFIG_SYS_PCIE2_NAME; -#endif -#ifdef CONFIG_SYS_PCIE3_NAME - case PCIE3: - return CONFIG_SYS_PCIE3_NAME; -#endif -#ifdef CONFIG_SYS_PCIE4_NAME - case PCIE4: - return CONFIG_SYS_PCIE4_NAME; -#endif - default: - return NULL; - } - - return NULL; -} - -__attribute__((weak, alias("__board_serdes_name"))) const char * -board_serdes_name(enum srds_prtcl device); - -static u32 devdisr_mask[] = { - _DEVDISR_PCIE1, - _DEVDISR_PCIE2, - _DEVDISR_PCIE3, - _DEVDISR_PCIE4, -}; - -int fsl_pcie_init_ctrl(int busno, u32 devdisr, enum srds_prtcl dev, - struct fsl_pci_info *pci_info) -{ - struct pci_controller *hose; - int num = dev - PCIE1; - - hose = calloc(1, sizeof(struct pci_controller)); - if (!hose) - return busno; - - if (is_serdes_configured(dev) && !(devdisr & devdisr_mask[num])) { - busno = fsl_configure_pcie(pci_info, hose, - board_serdes_name(dev), busno); - } else { - printf("PCIe%d: disabled\n", num + 1); - } - - return busno; -} - -int fsl_pcie_init_board(int busno) -{ - struct fsl_pci_info pci_info; - ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC8xxx_GUTS_ADDR; - u32 devdisr; - u32 *addr; - -#ifdef CONFIG_SYS_FSL_QORIQ_CHASSIS2 - addr = &gur->devdisr3; -#else - addr = &gur->devdisr; -#endif - devdisr = in_be32(addr); - -#ifdef CONFIG_PCIE1 - SET_STD_PCIE_INFO(pci_info, 1); - busno = fsl_pcie_init_ctrl(busno, devdisr, PCIE1, &pci_info); -#else - setbits_be32(addr, _DEVDISR_PCIE1); /* disable */ -#endif - -#ifdef CONFIG_PCIE2 - SET_STD_PCIE_INFO(pci_info, 2); - busno = fsl_pcie_init_ctrl(busno, devdisr, PCIE2, &pci_info); -#else - setbits_be32(addr, _DEVDISR_PCIE2); /* disable */ -#endif - -#ifdef CONFIG_PCIE3 - SET_STD_PCIE_INFO(pci_info, 3); - busno = fsl_pcie_init_ctrl(busno, devdisr, PCIE3, &pci_info); -#else - setbits_be32(addr, _DEVDISR_PCIE3); /* disable */ -#endif - -#ifdef CONFIG_PCIE4 - SET_STD_PCIE_INFO(pci_info, 4); - busno = fsl_pcie_init_ctrl(busno, devdisr, PCIE4, &pci_info); -#else - setbits_be32(addr, _DEVDISR_PCIE4); /* disable */ -#endif - - return busno; -} -#else -int fsl_pcie_init_ctrl(int busno, u32 devdisr, enum srds_prtcl dev, - struct fsl_pci_info *pci_info) -{ - return busno; -} - -int fsl_pcie_init_board(int busno) -{ - return busno; -} -#endif - -#ifdef CONFIG_OF_BOARD_SETUP -#include -#include - -void ft_fsl_pci_setup(void *blob, const char *pci_compat, - unsigned long ctrl_addr) -{ - int off; - u32 bus_range[2]; - phys_addr_t p_ctrl_addr = (phys_addr_t)ctrl_addr; - struct pci_controller *hose; - - hose = find_hose_by_cfg_addr((void *)(ctrl_addr)); - - /* convert ctrl_addr to true physical address */ - p_ctrl_addr = (phys_addr_t)ctrl_addr - CONFIG_SYS_CCSRBAR; - p_ctrl_addr += CONFIG_SYS_CCSRBAR_PHYS; - - off = fdt_node_offset_by_compat_reg(blob, pci_compat, p_ctrl_addr); - - if (off < 0) - return; - - /* We assume a cfg_addr not being set means we didn't setup the controller */ - if ((hose == NULL) || (hose->cfg_addr == NULL)) { - fdt_del_node(blob, off); - } else { - bus_range[0] = 0; - bus_range[1] = hose->last_busno - hose->first_busno; - fdt_setprop(blob, off, "bus-range", &bus_range[0], 2*4); - fdt_pci_dma_ranges(blob, off, hose); - } -} -#endif -- 2.7.4