--- /dev/null
+/*
+ * Marvell hostbridge routines
+ *
+ * Author: Mark A. Greer <source@mvista.com>
+ *
+ * 2004, 2005, 2007 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <stdarg.h>
+#include <stddef.h>
+#include "types.h"
+#include "elf.h"
+#include "page.h"
+#include "string.h"
+#include "stdio.h"
+#include "io.h"
+#include "ops.h"
+#include "mv64x60.h"
+
+#define PCI_DEVFN(slot,func) ((((slot) & 0x1f) << 3) | ((func) & 0x07))
+
+#define MV64x60_CPU2MEM_WINDOWS 4
+#define MV64x60_CPU2MEM_0_BASE 0x0008
+#define MV64x60_CPU2MEM_0_SIZE 0x0010
+#define MV64x60_CPU2MEM_1_BASE 0x0208
+#define MV64x60_CPU2MEM_1_SIZE 0x0210
+#define MV64x60_CPU2MEM_2_BASE 0x0018
+#define MV64x60_CPU2MEM_2_SIZE 0x0020
+#define MV64x60_CPU2MEM_3_BASE 0x0218
+#define MV64x60_CPU2MEM_3_SIZE 0x0220
+
+#define MV64x60_ENET2MEM_BAR_ENABLE 0x2290
+#define MV64x60_ENET2MEM_0_BASE 0x2200
+#define MV64x60_ENET2MEM_0_SIZE 0x2204
+#define MV64x60_ENET2MEM_1_BASE 0x2208
+#define MV64x60_ENET2MEM_1_SIZE 0x220c
+#define MV64x60_ENET2MEM_2_BASE 0x2210
+#define MV64x60_ENET2MEM_2_SIZE 0x2214
+#define MV64x60_ENET2MEM_3_BASE 0x2218
+#define MV64x60_ENET2MEM_3_SIZE 0x221c
+#define MV64x60_ENET2MEM_4_BASE 0x2220
+#define MV64x60_ENET2MEM_4_SIZE 0x2224
+#define MV64x60_ENET2MEM_5_BASE 0x2228
+#define MV64x60_ENET2MEM_5_SIZE 0x222c
+#define MV64x60_ENET2MEM_ACC_PROT_0 0x2294
+#define MV64x60_ENET2MEM_ACC_PROT_1 0x2298
+#define MV64x60_ENET2MEM_ACC_PROT_2 0x229c
+
+#define MV64x60_MPSC2MEM_BAR_ENABLE 0xf250
+#define MV64x60_MPSC2MEM_0_BASE 0xf200
+#define MV64x60_MPSC2MEM_0_SIZE 0xf204
+#define MV64x60_MPSC2MEM_1_BASE 0xf208
+#define MV64x60_MPSC2MEM_1_SIZE 0xf20c
+#define MV64x60_MPSC2MEM_2_BASE 0xf210
+#define MV64x60_MPSC2MEM_2_SIZE 0xf214
+#define MV64x60_MPSC2MEM_3_BASE 0xf218
+#define MV64x60_MPSC2MEM_3_SIZE 0xf21c
+#define MV64x60_MPSC_0_REMAP 0xf240
+#define MV64x60_MPSC_1_REMAP 0xf244
+#define MV64x60_MPSC2MEM_ACC_PROT_0 0xf254
+#define MV64x60_MPSC2MEM_ACC_PROT_1 0xf258
+#define MV64x60_MPSC2REGS_BASE 0xf25c
+
+#define MV64x60_IDMA2MEM_BAR_ENABLE 0x0a80
+#define MV64x60_IDMA2MEM_0_BASE 0x0a00
+#define MV64x60_IDMA2MEM_0_SIZE 0x0a04
+#define MV64x60_IDMA2MEM_1_BASE 0x0a08
+#define MV64x60_IDMA2MEM_1_SIZE 0x0a0c
+#define MV64x60_IDMA2MEM_2_BASE 0x0a10
+#define MV64x60_IDMA2MEM_2_SIZE 0x0a14
+#define MV64x60_IDMA2MEM_3_BASE 0x0a18
+#define MV64x60_IDMA2MEM_3_SIZE 0x0a1c
+#define MV64x60_IDMA2MEM_4_BASE 0x0a20
+#define MV64x60_IDMA2MEM_4_SIZE 0x0a24
+#define MV64x60_IDMA2MEM_5_BASE 0x0a28
+#define MV64x60_IDMA2MEM_5_SIZE 0x0a2c
+#define MV64x60_IDMA2MEM_6_BASE 0x0a30
+#define MV64x60_IDMA2MEM_6_SIZE 0x0a34
+#define MV64x60_IDMA2MEM_7_BASE 0x0a38
+#define MV64x60_IDMA2MEM_7_SIZE 0x0a3c
+#define MV64x60_IDMA2MEM_ACC_PROT_0 0x0a70
+#define MV64x60_IDMA2MEM_ACC_PROT_1 0x0a74
+#define MV64x60_IDMA2MEM_ACC_PROT_2 0x0a78
+#define MV64x60_IDMA2MEM_ACC_PROT_3 0x0a7c
+
+#define MV64x60_PCI_ACC_CNTL_WINDOWS 6
+#define MV64x60_PCI0_PCI_DECODE_CNTL 0x0d3c
+#define MV64x60_PCI1_PCI_DECODE_CNTL 0x0dbc
+
+#define MV64x60_PCI0_BAR_ENABLE 0x0c3c
+#define MV64x60_PCI02MEM_0_SIZE 0x0c08
+#define MV64x60_PCI0_ACC_CNTL_0_BASE_LO 0x1e00
+#define MV64x60_PCI0_ACC_CNTL_0_BASE_HI 0x1e04
+#define MV64x60_PCI0_ACC_CNTL_0_SIZE 0x1e08
+#define MV64x60_PCI0_ACC_CNTL_1_BASE_LO 0x1e10
+#define MV64x60_PCI0_ACC_CNTL_1_BASE_HI 0x1e14
+#define MV64x60_PCI0_ACC_CNTL_1_SIZE 0x1e18
+#define MV64x60_PCI0_ACC_CNTL_2_BASE_LO 0x1e20
+#define MV64x60_PCI0_ACC_CNTL_2_BASE_HI 0x1e24
+#define MV64x60_PCI0_ACC_CNTL_2_SIZE 0x1e28
+#define MV64x60_PCI0_ACC_CNTL_3_BASE_LO 0x1e30
+#define MV64x60_PCI0_ACC_CNTL_3_BASE_HI 0x1e34
+#define MV64x60_PCI0_ACC_CNTL_3_SIZE 0x1e38
+#define MV64x60_PCI0_ACC_CNTL_4_BASE_LO 0x1e40
+#define MV64x60_PCI0_ACC_CNTL_4_BASE_HI 0x1e44
+#define MV64x60_PCI0_ACC_CNTL_4_SIZE 0x1e48
+#define MV64x60_PCI0_ACC_CNTL_5_BASE_LO 0x1e50
+#define MV64x60_PCI0_ACC_CNTL_5_BASE_HI 0x1e54
+#define MV64x60_PCI0_ACC_CNTL_5_SIZE 0x1e58
+
+#define MV64x60_PCI1_BAR_ENABLE 0x0cbc
+#define MV64x60_PCI12MEM_0_SIZE 0x0c88
+#define MV64x60_PCI1_ACC_CNTL_0_BASE_LO 0x1e80
+#define MV64x60_PCI1_ACC_CNTL_0_BASE_HI 0x1e84
+#define MV64x60_PCI1_ACC_CNTL_0_SIZE 0x1e88
+#define MV64x60_PCI1_ACC_CNTL_1_BASE_LO 0x1e90
+#define MV64x60_PCI1_ACC_CNTL_1_BASE_HI 0x1e94
+#define MV64x60_PCI1_ACC_CNTL_1_SIZE 0x1e98
+#define MV64x60_PCI1_ACC_CNTL_2_BASE_LO 0x1ea0
+#define MV64x60_PCI1_ACC_CNTL_2_BASE_HI 0x1ea4
+#define MV64x60_PCI1_ACC_CNTL_2_SIZE 0x1ea8
+#define MV64x60_PCI1_ACC_CNTL_3_BASE_LO 0x1eb0
+#define MV64x60_PCI1_ACC_CNTL_3_BASE_HI 0x1eb4
+#define MV64x60_PCI1_ACC_CNTL_3_SIZE 0x1eb8
+#define MV64x60_PCI1_ACC_CNTL_4_BASE_LO 0x1ec0
+#define MV64x60_PCI1_ACC_CNTL_4_BASE_HI 0x1ec4
+#define MV64x60_PCI1_ACC_CNTL_4_SIZE 0x1ec8
+#define MV64x60_PCI1_ACC_CNTL_5_BASE_LO 0x1ed0
+#define MV64x60_PCI1_ACC_CNTL_5_BASE_HI 0x1ed4
+#define MV64x60_PCI1_ACC_CNTL_5_SIZE 0x1ed8
+
+#define MV64x60_CPU2PCI_SWAP_NONE 0x01000000
+
+#define MV64x60_CPU2PCI0_IO_BASE 0x0048
+#define MV64x60_CPU2PCI0_IO_SIZE 0x0050
+#define MV64x60_CPU2PCI0_IO_REMAP 0x00f0
+#define MV64x60_CPU2PCI0_MEM_0_BASE 0x0058
+#define MV64x60_CPU2PCI0_MEM_0_SIZE 0x0060
+#define MV64x60_CPU2PCI0_MEM_0_REMAP_LO 0x00f8
+#define MV64x60_CPU2PCI0_MEM_0_REMAP_HI 0x0320
+
+#define MV64x60_CPU2PCI1_IO_BASE 0x0090
+#define MV64x60_CPU2PCI1_IO_SIZE 0x0098
+#define MV64x60_CPU2PCI1_IO_REMAP 0x0108
+#define MV64x60_CPU2PCI1_MEM_0_BASE 0x00a0
+#define MV64x60_CPU2PCI1_MEM_0_SIZE 0x00a8
+#define MV64x60_CPU2PCI1_MEM_0_REMAP_LO 0x0110
+#define MV64x60_CPU2PCI1_MEM_0_REMAP_HI 0x0340
+
+struct mv64x60_mem_win {
+ u32 hi;
+ u32 lo;
+ u32 size;
+};
+
+struct mv64x60_pci_win {
+ u32 fcn;
+ u32 hi;
+ u32 lo;
+ u32 size;
+};
+
+/* PCI config access routines */
+struct {
+ u32 addr;
+ u32 data;
+} static mv64x60_pci_cfgio[2] = {
+ { /* hose 0 */
+ .addr = 0xcf8,
+ .data = 0xcfc,
+ },
+ { /* hose 1 */
+ .addr = 0xc78,
+ .data = 0xc7c,
+ }
+};
+
+u32 mv64x60_cfg_read(u8 *bridge_base, u8 hose, u8 bus, u8 devfn, u8 offset)
+{
+ out_le32((u32 *)(bridge_base + mv64x60_pci_cfgio[hose].addr),
+ (1 << 31) | (bus << 16) | (devfn << 8) | offset);
+ return in_le32((u32 *)(bridge_base + mv64x60_pci_cfgio[hose].data));
+}
+
+void mv64x60_cfg_write(u8 *bridge_base, u8 hose, u8 bus, u8 devfn, u8 offset,
+ u32 val)
+{
+ out_le32((u32 *)(bridge_base + mv64x60_pci_cfgio[hose].addr),
+ (1 << 31) | (bus << 16) | (devfn << 8) | offset);
+ out_le32((u32 *)(bridge_base + mv64x60_pci_cfgio[hose].data), val);
+}
+
+/* I/O ctlr -> system memory setup */
+static struct mv64x60_mem_win mv64x60_cpu2mem[MV64x60_CPU2MEM_WINDOWS] = {
+ {
+ .lo = MV64x60_CPU2MEM_0_BASE,
+ .size = MV64x60_CPU2MEM_0_SIZE,
+ },
+ {
+ .lo = MV64x60_CPU2MEM_1_BASE,
+ .size = MV64x60_CPU2MEM_1_SIZE,
+ },
+ {
+ .lo = MV64x60_CPU2MEM_2_BASE,
+ .size = MV64x60_CPU2MEM_2_SIZE,
+ },
+ {
+ .lo = MV64x60_CPU2MEM_3_BASE,
+ .size = MV64x60_CPU2MEM_3_SIZE,
+ },
+};
+
+static struct mv64x60_mem_win mv64x60_enet2mem[MV64x60_CPU2MEM_WINDOWS] = {
+ {
+ .lo = MV64x60_ENET2MEM_0_BASE,
+ .size = MV64x60_ENET2MEM_0_SIZE,
+ },
+ {
+ .lo = MV64x60_ENET2MEM_1_BASE,
+ .size = MV64x60_ENET2MEM_1_SIZE,
+ },
+ {
+ .lo = MV64x60_ENET2MEM_2_BASE,
+ .size = MV64x60_ENET2MEM_2_SIZE,
+ },
+ {
+ .lo = MV64x60_ENET2MEM_3_BASE,
+ .size = MV64x60_ENET2MEM_3_SIZE,
+ },
+};
+
+static struct mv64x60_mem_win mv64x60_mpsc2mem[MV64x60_CPU2MEM_WINDOWS] = {
+ {
+ .lo = MV64x60_MPSC2MEM_0_BASE,
+ .size = MV64x60_MPSC2MEM_0_SIZE,
+ },
+ {
+ .lo = MV64x60_MPSC2MEM_1_BASE,
+ .size = MV64x60_MPSC2MEM_1_SIZE,
+ },
+ {
+ .lo = MV64x60_MPSC2MEM_2_BASE,
+ .size = MV64x60_MPSC2MEM_2_SIZE,
+ },
+ {
+ .lo = MV64x60_MPSC2MEM_3_BASE,
+ .size = MV64x60_MPSC2MEM_3_SIZE,
+ },
+};
+
+static struct mv64x60_mem_win mv64x60_idma2mem[MV64x60_CPU2MEM_WINDOWS] = {
+ {
+ .lo = MV64x60_IDMA2MEM_0_BASE,
+ .size = MV64x60_IDMA2MEM_0_SIZE,
+ },
+ {
+ .lo = MV64x60_IDMA2MEM_1_BASE,
+ .size = MV64x60_IDMA2MEM_1_SIZE,
+ },
+ {
+ .lo = MV64x60_IDMA2MEM_2_BASE,
+ .size = MV64x60_IDMA2MEM_2_SIZE,
+ },
+ {
+ .lo = MV64x60_IDMA2MEM_3_BASE,
+ .size = MV64x60_IDMA2MEM_3_SIZE,
+ },
+};
+
+static u32 mv64x60_dram_selects[MV64x60_CPU2MEM_WINDOWS] = {0xe,0xd,0xb,0x7};
+
+/*
+ * ENET, MPSC, and IDMA ctlrs on the MV64x60 have separate windows that
+ * must be set up so that the respective ctlr can access system memory.
+ * Configure them to be same as cpu->memory windows.
+ */
+void mv64x60_config_ctlr_windows(u8 *bridge_base, u8 *bridge_pbase,
+ u8 is_coherent)
+{
+ u32 i, base, size, enables, prot = 0, snoop_bits = 0;
+
+ /* Disable ctlr->mem windows */
+ out_le32((u32 *)(bridge_base + MV64x60_ENET2MEM_BAR_ENABLE), 0x3f);
+ out_le32((u32 *)(bridge_base + MV64x60_MPSC2MEM_BAR_ENABLE), 0xf);
+ out_le32((u32 *)(bridge_base + MV64x60_ENET2MEM_BAR_ENABLE), 0xff);
+
+ if (is_coherent)
+ snoop_bits = 0x2 << 12; /* Writeback */
+
+ enables = in_le32((u32 *)(bridge_base + MV64x60_CPU_BAR_ENABLE)) & 0xf;
+
+ for (i=0; i<MV64x60_CPU2MEM_WINDOWS; i++) {
+ if (enables & (1 << i)) /* Set means disabled */
+ continue;
+
+ base = in_le32((u32 *)(bridge_base + mv64x60_cpu2mem[i].lo))
+ << 16;
+ base |= snoop_bits | (mv64x60_dram_selects[i] << 8);
+ size = in_le32((u32 *)(bridge_base + mv64x60_cpu2mem[i].size))
+ << 16;
+ prot |= (0x3 << (i << 1)); /* RW access */
+
+ out_le32((u32 *)(bridge_base + mv64x60_enet2mem[i].lo), base);
+ out_le32((u32 *)(bridge_base + mv64x60_enet2mem[i].size), size);
+ out_le32((u32 *)(bridge_base + mv64x60_mpsc2mem[i].lo), base);
+ out_le32((u32 *)(bridge_base + mv64x60_mpsc2mem[i].size), size);
+ out_le32((u32 *)(bridge_base + mv64x60_idma2mem[i].lo), base);
+ out_le32((u32 *)(bridge_base + mv64x60_idma2mem[i].size), size);
+ }
+
+ out_le32((u32 *)(bridge_base + MV64x60_ENET2MEM_ACC_PROT_0), prot);
+ out_le32((u32 *)(bridge_base + MV64x60_ENET2MEM_ACC_PROT_1), prot);
+ out_le32((u32 *)(bridge_base + MV64x60_ENET2MEM_ACC_PROT_2), prot);
+ out_le32((u32 *)(bridge_base + MV64x60_MPSC2MEM_ACC_PROT_0), prot);
+ out_le32((u32 *)(bridge_base + MV64x60_MPSC2MEM_ACC_PROT_1), prot);
+ out_le32((u32 *)(bridge_base + MV64x60_IDMA2MEM_ACC_PROT_0), prot);
+ out_le32((u32 *)(bridge_base + MV64x60_IDMA2MEM_ACC_PROT_1), prot);
+ out_le32((u32 *)(bridge_base + MV64x60_IDMA2MEM_ACC_PROT_2), prot);
+ out_le32((u32 *)(bridge_base + MV64x60_IDMA2MEM_ACC_PROT_3), prot);
+
+ /* Set mpsc->bridge's reg window to the bridge's internal registers. */
+ out_le32((u32 *)(bridge_base + MV64x60_MPSC2REGS_BASE),
+ (u32)bridge_pbase);
+
+ out_le32((u32 *)(bridge_base + MV64x60_ENET2MEM_BAR_ENABLE), enables);
+ out_le32((u32 *)(bridge_base + MV64x60_MPSC2MEM_BAR_ENABLE), enables);
+ out_le32((u32 *)(bridge_base + MV64x60_IDMA2MEM_BAR_ENABLE), enables);
+}
+
+/* PCI MEM -> system memory, et. al. setup */
+static struct mv64x60_pci_win mv64x60_pci2mem[2] = {
+ { /* hose 0 */
+ .fcn = 0,
+ .hi = 0x14,
+ .lo = 0x10,
+ .size = MV64x60_PCI02MEM_0_SIZE,
+ },
+ { /* hose 1 */
+ .fcn = 0,
+ .hi = 0x94,
+ .lo = 0x90,
+ .size = MV64x60_PCI12MEM_0_SIZE,
+ },
+};
+
+static struct
+mv64x60_mem_win mv64x60_pci_acc[2][MV64x60_PCI_ACC_CNTL_WINDOWS] = {
+ { /* hose 0 */
+ {
+ .hi = MV64x60_PCI0_ACC_CNTL_0_BASE_HI,
+ .lo = MV64x60_PCI0_ACC_CNTL_0_BASE_LO,
+ .size = MV64x60_PCI0_ACC_CNTL_0_SIZE,
+ },
+ {
+ .hi = MV64x60_PCI0_ACC_CNTL_1_BASE_HI,
+ .lo = MV64x60_PCI0_ACC_CNTL_1_BASE_LO,
+ .size = MV64x60_PCI0_ACC_CNTL_1_SIZE,
+ },
+ {
+ .hi = MV64x60_PCI0_ACC_CNTL_2_BASE_HI,
+ .lo = MV64x60_PCI0_ACC_CNTL_2_BASE_LO,
+ .size = MV64x60_PCI0_ACC_CNTL_2_SIZE,
+ },
+ {
+ .hi = MV64x60_PCI0_ACC_CNTL_3_BASE_HI,
+ .lo = MV64x60_PCI0_ACC_CNTL_3_BASE_LO,
+ .size = MV64x60_PCI0_ACC_CNTL_3_SIZE,
+ },
+ },
+ { /* hose 1 */
+ {
+ .hi = MV64x60_PCI1_ACC_CNTL_0_BASE_HI,
+ .lo = MV64x60_PCI1_ACC_CNTL_0_BASE_LO,
+ .size = MV64x60_PCI1_ACC_CNTL_0_SIZE,
+ },
+ {
+ .hi = MV64x60_PCI1_ACC_CNTL_1_BASE_HI,
+ .lo = MV64x60_PCI1_ACC_CNTL_1_BASE_LO,
+ .size = MV64x60_PCI1_ACC_CNTL_1_SIZE,
+ },
+ {
+ .hi = MV64x60_PCI1_ACC_CNTL_2_BASE_HI,
+ .lo = MV64x60_PCI1_ACC_CNTL_2_BASE_LO,
+ .size = MV64x60_PCI1_ACC_CNTL_2_SIZE,
+ },
+ {
+ .hi = MV64x60_PCI1_ACC_CNTL_3_BASE_HI,
+ .lo = MV64x60_PCI1_ACC_CNTL_3_BASE_LO,
+ .size = MV64x60_PCI1_ACC_CNTL_3_SIZE,
+ },
+ },
+};
+
+static struct mv64x60_mem_win mv64x60_pci2reg[2] = {
+ {
+ .hi = 0x24,
+ .lo = 0x20,
+ .size = 0,
+ },
+ {
+ .hi = 0xa4,
+ .lo = 0xa0,
+ .size = 0,
+ },
+};
+
+/* Only need to use 1 window (per hose) to get access to all of system memory */
+void mv64x60_config_pci_windows(u8 *bridge_base, u8 *bridge_pbase, u8 hose,
+ u8 bus, u32 mem_size, u32 acc_bits)
+{
+ u32 i, offset, bar_enable, enables;
+
+ /* Disable all windows but PCI MEM -> Bridge's regs window */
+ enables = ~(1 << 9);
+ bar_enable = hose ? MV64x60_PCI1_BAR_ENABLE : MV64x60_PCI0_BAR_ENABLE;
+ out_le32((u32 *)(bridge_base + bar_enable), enables);
+
+ for (i=0; i<MV64x60_PCI_ACC_CNTL_WINDOWS; i++)
+ out_le32((u32 *)(bridge_base + mv64x60_pci_acc[hose][i].lo), 0);
+
+ /* If mem_size is 0, leave windows disabled */
+ if (mem_size == 0)
+ return;
+
+ /* Cause automatic updates of PCI remap regs */
+ offset = hose ?
+ MV64x60_PCI1_PCI_DECODE_CNTL : MV64x60_PCI0_PCI_DECODE_CNTL;
+ i = in_le32((u32 *)(bridge_base + offset));
+ out_le32((u32 *)(bridge_base + offset), i & ~0x1);
+
+ mem_size = (mem_size - 1) & 0xfffff000;
+
+ /* Map PCI MEM addr 0 -> System Mem addr 0 */
+ mv64x60_cfg_write(bridge_base, hose, bus,
+ PCI_DEVFN(0, mv64x60_pci2mem[hose].fcn),
+ mv64x60_pci2mem[hose].hi, 0);
+ mv64x60_cfg_write(bridge_base, hose, bus,
+ PCI_DEVFN(0, mv64x60_pci2mem[hose].fcn),
+ mv64x60_pci2mem[hose].lo, 0);
+ out_le32((u32 *)(bridge_base + mv64x60_pci2mem[hose].size),mem_size);
+
+ acc_bits |= MV64x60_PCI_ACC_CNTL_ENABLE;
+ out_le32((u32 *)(bridge_base + mv64x60_pci_acc[hose][0].hi), 0);
+ out_le32((u32 *)(bridge_base + mv64x60_pci_acc[hose][0].lo), acc_bits);
+ out_le32((u32 *)(bridge_base + mv64x60_pci_acc[hose][0].size),mem_size);
+
+ /* Set PCI MEM->bridge's reg window to where they are in CPU mem map */
+ i = (u32)bridge_base;
+ i &= 0xffff0000;
+ i |= (0x2 << 1);
+ mv64x60_cfg_write(bridge_base, hose, bus, PCI_DEVFN(0,0),
+ mv64x60_pci2reg[hose].hi, 0);
+ mv64x60_cfg_write(bridge_base, hose, bus, PCI_DEVFN(0,0),
+ mv64x60_pci2reg[hose].lo, i);
+
+ enables &= ~0x1; /* Enable PCI MEM -> System Mem window 0 */
+ out_le32((u32 *)(bridge_base + bar_enable), enables);
+}
+
+/* CPU -> PCI I/O & MEM setup */
+struct mv64x60_cpu2pci_win mv64x60_cpu2pci_io[2] = {
+ { /* hose 0 */
+ .lo = MV64x60_CPU2PCI0_IO_BASE,
+ .size = MV64x60_CPU2PCI0_IO_SIZE,
+ .remap_hi = 0,
+ .remap_lo = MV64x60_CPU2PCI0_IO_REMAP,
+ },
+ { /* hose 1 */
+ .lo = MV64x60_CPU2PCI1_IO_BASE,
+ .size = MV64x60_CPU2PCI1_IO_SIZE,
+ .remap_hi = 0,
+ .remap_lo = MV64x60_CPU2PCI1_IO_REMAP,
+ },
+};
+
+struct mv64x60_cpu2pci_win mv64x60_cpu2pci_mem[2] = {
+ { /* hose 0 */
+ .lo = MV64x60_CPU2PCI0_MEM_0_BASE,
+ .size = MV64x60_CPU2PCI0_MEM_0_SIZE,
+ .remap_hi = MV64x60_CPU2PCI0_MEM_0_REMAP_HI,
+ .remap_lo = MV64x60_CPU2PCI0_MEM_0_REMAP_LO,
+ },
+ { /* hose 1 */
+ .lo = MV64x60_CPU2PCI1_MEM_0_BASE,
+ .size = MV64x60_CPU2PCI1_MEM_0_SIZE,
+ .remap_hi = MV64x60_CPU2PCI1_MEM_0_REMAP_HI,
+ .remap_lo = MV64x60_CPU2PCI1_MEM_0_REMAP_LO,
+ },
+};
+
+/* Only need to set up 1 window to pci mem space */
+void mv64x60_config_cpu2pci_window(u8 *bridge_base, u8 hose, u32 pci_base_hi,
+ u32 pci_base_lo, u32 cpu_base, u32 size,
+ struct mv64x60_cpu2pci_win *offset_tbl)
+{
+ cpu_base >>= 16;
+ cpu_base |= MV64x60_CPU2PCI_SWAP_NONE;
+ out_le32((u32 *)(bridge_base + offset_tbl[hose].lo), cpu_base);
+
+ if (offset_tbl[hose].remap_hi != 0)
+ out_le32((u32 *)(bridge_base + offset_tbl[hose].remap_hi),
+ pci_base_hi);
+ out_le32((u32 *)(bridge_base + offset_tbl[hose].remap_lo),
+ pci_base_lo >> 16);
+
+ size = (size - 1) >> 16;
+ out_le32((u32 *)(bridge_base + offset_tbl[hose].size), size);
+}
+
+/* Read mem ctlr to get the amount of mem in system */
+u32 mv64x60_get_mem_size(u8 *bridge_base)
+{
+ u32 enables, i, v;
+ u32 mem = 0;
+
+ enables = in_le32((u32 *)(bridge_base + MV64x60_CPU_BAR_ENABLE)) & 0xf;
+
+ for (i=0; i<MV64x60_CPU2MEM_WINDOWS; i++)
+ if (!(enables & (1<<i))) {
+ v = in_le32((u32*)(bridge_base
+ + mv64x60_cpu2mem[i].size));
+ v = ((v & 0xffff) + 1) << 16;
+ mem += v;
+ }
+
+ return mem;
+}
+
+/* Get physical address of bridge's registers */
+u8 *mv64x60_get_bridge_pbase(void)
+{
+ u32 v[2];
+ void *devp;
+
+ devp = finddevice("/mv64x60");
+ if (devp == NULL)
+ goto err_out;
+ if (getprop(devp, "reg", v, sizeof(v)) != sizeof(v))
+ goto err_out;
+
+ return (u8 *)v[0];
+
+err_out:
+ return 0;
+}
+
+/* Get virtual address of bridge's registers */
+u8 *mv64x60_get_bridge_base(void)
+{
+ u32 v;
+ void *devp;
+
+ devp = finddevice("/mv64x60");
+ if (devp == NULL)
+ goto err_out;
+ if (getprop(devp, "virtual-reg", &v, sizeof(v)) != sizeof(v))
+ goto err_out;
+
+ return (u8 *)v;
+
+err_out:
+ return 0;
+}
+
+u8 mv64x60_is_coherent(void)
+{
+ u32 v;
+ void *devp;
+
+ devp = finddevice("/");
+ if (devp == NULL)
+ return 1; /* Assume coherency on */
+
+ if (getprop(devp, "coherency-off", &v, sizeof(v)) < 0)
+ return 1; /* Coherency on */
+ else
+ return 0;
+}
projects / platform / upstream / kernel-adaptation-pc.git / commitdiff