/*
- * Copyright (C) 2006 Freescale Semiconductor, Inc.
+ * Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
*
* See file CREDITS for list of people who contributed to this
* project.
/*
* PCI Configuration space access support for MPC83xx PCI Bridge
*/
+
#include <asm/mmu.h>
#include <asm/io.h>
#include <common.h>
+#include <mpc83xx.h>
#include <pci.h>
#include <i2c.h>
-#if defined(CONFIG_OF_LIBFDT)
-#include <libfdt.h>
-#include <fdt_support.h>
-#endif
-
#include <asm/fsl_i2c.h>
+#include "../common/pq-mds-pib.h"
DECLARE_GLOBAL_DATA_PTR;
-#if defined(CONFIG_PCI)
-#define PCI_FUNCTION_CONFIG 0x44
-#define PCI_FUNCTION_CFG_LOCK 0x20
+static struct pci_region pci1_regions[] = {
+ {
+ bus_start: CONFIG_SYS_PCI1_MEM_BASE,
+ phys_start: CONFIG_SYS_PCI1_MEM_PHYS,
+ size: CONFIG_SYS_PCI1_MEM_SIZE,
+ flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
+ },
+ {
+ bus_start: CONFIG_SYS_PCI1_IO_BASE,
+ phys_start: CONFIG_SYS_PCI1_IO_PHYS,
+ size: CONFIG_SYS_PCI1_IO_SIZE,
+ flags: PCI_REGION_IO
+ },
+ {
+ bus_start: CONFIG_SYS_PCI1_MMIO_BASE,
+ phys_start: CONFIG_SYS_PCI1_MMIO_PHYS,
+ size: CONFIG_SYS_PCI1_MMIO_SIZE,
+ flags: PCI_REGION_MEM
+ },
+};
-/*
- * Initialize PCI Devices, report devices found
- */
-#ifndef CONFIG_PCI_PNP
-static struct pci_config_table pci_mpc83xxemds_config_table[] = {
+#ifdef CONFIG_MPC83XX_PCI2
+static struct pci_region pci2_regions[] = {
{
- PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
- pci_cfgfunc_config_device,
- {PCI_ENET0_IOADDR,
- PCI_ENET0_MEMADDR,
- PCI_COMMON_MEMORY | PCI_COMMAND_MASTER}
- },
- {}
-}
-#endif
-static struct pci_controller hose[] = {
+ bus_start: CONFIG_SYS_PCI2_MEM_BASE,
+ phys_start: CONFIG_SYS_PCI2_MEM_PHYS,
+ size: CONFIG_SYS_PCI2_MEM_SIZE,
+ flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
+ },
{
-#ifndef CONFIG_PCI_PNP
- config_table:pci_mpc83xxemds_config_table,
-#endif
- },
+ bus_start: CONFIG_SYS_PCI2_IO_BASE,
+ phys_start: CONFIG_SYS_PCI2_IO_PHYS,
+ size: CONFIG_SYS_PCI2_IO_SIZE,
+ flags: PCI_REGION_IO
+ },
+ {
+ bus_start: CONFIG_SYS_PCI2_MMIO_BASE,
+ phys_start: CONFIG_SYS_PCI2_MMIO_PHYS,
+ size: CONFIG_SYS_PCI2_MMIO_SIZE,
+ flags: PCI_REGION_MEM
+ },
};
+#endif
-/**********************************************************************
- * pci_init_board()
- *********************************************************************/
void pci_init_board(void)
#ifdef CONFIG_PCISLAVE
{
- u16 reg16;
- volatile immap_t *immr;
- volatile law83xx_t *pci_law;
- volatile pot83xx_t *pci_pot;
- volatile pcictrl83xx_t *pci_ctrl;
- volatile pciconf83xx_t *pci_conf;
+ volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
+ volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
+ volatile pcictrl83xx_t *pci_ctrl = &immr->pci_ctrl[0];
+ struct pci_region *reg[] = { pci1_regions };
+
+ /* Configure PCI Local Access Windows */
+ pci_law[0].bar = CONFIG_SYS_PCI1_MEM_PHYS & LAWBAR_BAR;
+ pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_512M;
+
+ pci_law[1].bar = CONFIG_SYS_PCI1_IO_PHYS & LAWBAR_BAR;
+ pci_law[1].ar = LAWAR_EN | LAWAR_SIZE_1M;
+
+ mpc83xx_pci_init(1, reg, 0);
- immr = (immap_t *) CONFIG_SYS_IMMR;
- pci_law = immr->sysconf.pcilaw;
- pci_pot = immr->ios.pot;
- pci_ctrl = immr->pci_ctrl;
- pci_conf = immr->pci_conf;
/*
* Configure PCI Inbound Translation Windows
*/
pci_ctrl[0].piebar2 = 0x0;
pci_ctrl[0].piwar2 &= ~PIWAR_EN;
- hose[0].first_busno = 0;
- hose[0].last_busno = 0xff;
- pci_setup_indirect(&hose[0],
- (CONFIG_SYS_IMMR + 0x8300), (CONFIG_SYS_IMMR + 0x8304));
- reg16 = 0xff;
-
- pci_hose_read_config_word(&hose[0], PCI_BDF(0, 0, 0),
- PCI_COMMAND, ®16);
- reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MEMORY;
- pci_hose_write_config_word(&hose[0], PCI_BDF(0, 0, 0),
- PCI_COMMAND, reg16);
-
- /*
- * Clear non-reserved bits in status register.
- */
- pci_hose_write_config_word(&hose[0], PCI_BDF(0, 0, 0),
- PCI_STATUS, 0xffff);
- pci_hose_write_config_byte(&hose[0], PCI_BDF(0, 0, 0),
- PCI_LATENCY_TIMER, 0x80);
-
- /*
- * Unlock configuration lock in PCI function configuration register.
- */
- pci_hose_read_config_word(&hose[0], PCI_BDF(0, 0, 0),
- PCI_FUNCTION_CONFIG, ®16);
- reg16 &= ~(PCI_FUNCTION_CFG_LOCK);
- pci_hose_write_config_word(&hose[0], PCI_BDF(0, 0, 0),
- PCI_FUNCTION_CONFIG, reg16);
-
- printf("Enabled PCI 32bit Agent Mode\n");
+ /* Unlock the configuration bit */
+ mpc83xx_pcislave_unlock(0);
+ printf("PCI: Agent mode enabled\n");
}
#else
{
- volatile immap_t *immr;
- volatile clk83xx_t *clk;
- volatile law83xx_t *pci_law;
- volatile pot83xx_t *pci_pot;
- volatile pcictrl83xx_t *pci_ctrl;
- volatile pciconf83xx_t *pci_conf;
+ volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
+ volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
+ volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
+#ifndef CONFIG_MPC83XX_PCI2
+ struct pci_region *reg[] = { pci1_regions };
+#else
+ struct pci_region *reg[] = { pci1_regions, pci2_regions };
+#endif
- u16 reg16;
- u32 val32;
- u32 dev;
+ /* initialize the PCA9555PW IO expander on the PIB board */
+ pib_init();
- immr = (immap_t *) CONFIG_SYS_IMMR;
- clk = (clk83xx_t *) & immr->clk;
- pci_law = immr->sysconf.pcilaw;
- pci_pot = immr->ios.pot;
- pci_ctrl = immr->pci_ctrl;
- pci_conf = immr->pci_conf;
- /*
- * Configure PCI controller and PCI_CLK_OUTPUT both in 66M mode
- */
- val32 = clk->occr;
- udelay(2000);
#if defined(PCI_66M)
clk->occr = OCCR_PCICOE0 | OCCR_PCICOE1 | OCCR_PCICOE2;
printf("PCI clock is 66MHz\n");
#endif
udelay(2000);
- /*
- * Configure PCI Local Access Windows
- */
- pci_law[0].bar = CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR;
+ /* Configure PCI Local Access Windows */
+ pci_law[0].bar = CONFIG_SYS_PCI1_MEM_PHYS & LAWBAR_BAR;
pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_512M;
- pci_law[1].bar = CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR;
+ pci_law[1].bar = CONFIG_SYS_PCI1_IO_PHYS & LAWBAR_BAR;
pci_law[1].ar = LAWAR_EN | LAWAR_SIZE_1M;
- /*
- * Configure PCI Outbound Translation Windows
- */
-
- /* PCI mem space - prefetch */
- pci_pot[0].potar = (CONFIG_SYS_PCI_MEM_BASE >> 12) & POTAR_TA_MASK;
- pci_pot[0].pobar = (CONFIG_SYS_PCI_MEM_PHYS >> 12) & POBAR_BA_MASK;
- pci_pot[0].pocmr =
- POCMR_EN | POCMR_SE | (POCMR_CM_256M & POCMR_CM_MASK);
-
- /* PCI mmio - non-prefetch mem space */
- pci_pot[1].potar = (CONFIG_SYS_PCI_MMIO_BASE >> 12) & POTAR_TA_MASK;
- pci_pot[1].pobar = (CONFIG_SYS_PCI_MMIO_PHYS >> 12) & POBAR_BA_MASK;
- pci_pot[1].pocmr = POCMR_EN | (POCMR_CM_256M & POCMR_CM_MASK);
-
- /* PCI IO space */
- pci_pot[2].potar = (CONFIG_SYS_PCI_IO_BASE >> 12) & POTAR_TA_MASK;
- pci_pot[2].pobar = (CONFIG_SYS_PCI_IO_PHYS >> 12) & POBAR_BA_MASK;
- pci_pot[2].pocmr = POCMR_EN | POCMR_IO | (POCMR_CM_1M & POCMR_CM_MASK);
-
- /*
- * Configure PCI Inbound Translation Windows
- */
- pci_ctrl[0].pitar1 = (CONFIG_SYS_PCI_SLV_MEM_LOCAL >> 12) & PITAR_TA_MASK;
- pci_ctrl[0].pibar1 = (CONFIG_SYS_PCI_SLV_MEM_BUS >> 12) & PIBAR_MASK;
- pci_ctrl[0].piebar1 = 0x0;
- pci_ctrl[0].piwar1 =
- PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP |
- PIWAR_IWS_2G;
-
- /*
- * Release PCI RST Output signal
- */
- udelay(2000);
- pci_ctrl[0].gcr = 1;
udelay(2000);
- hose[0].first_busno = 0;
- hose[0].last_busno = 0xff;
-
- /* PCI memory prefetch space */
- pci_set_region(hose[0].regions + 0,
- CONFIG_SYS_PCI_MEM_BASE,
- CONFIG_SYS_PCI_MEM_PHYS,
- CONFIG_SYS_PCI_MEM_SIZE, PCI_REGION_MEM | PCI_REGION_PREFETCH);
-
- /* PCI memory space */
- pci_set_region(hose[0].regions + 1,
- CONFIG_SYS_PCI_MMIO_BASE,
- CONFIG_SYS_PCI_MMIO_PHYS, CONFIG_SYS_PCI_MMIO_SIZE, PCI_REGION_MEM);
-
- /* PCI IO space */
- pci_set_region(hose[0].regions + 2,
- CONFIG_SYS_PCI_IO_BASE,
- CONFIG_SYS_PCI_IO_PHYS, CONFIG_SYS_PCI_IO_SIZE, PCI_REGION_IO);
-
- /* System memory space */
- pci_set_region(hose[0].regions + 3,
- CONFIG_SYS_PCI_SLV_MEM_LOCAL,
- CONFIG_SYS_PCI_SLV_MEM_BUS,
- CONFIG_SYS_PCI_SLV_MEM_SIZE,
- PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
-
- hose[0].region_count = 4;
-
- pci_setup_indirect(&hose[0],
- (CONFIG_SYS_IMMR + 0x8300), (CONFIG_SYS_IMMR + 0x8304));
-
- pci_register_hose(hose);
-
- /*
- * Write command register
- */
- reg16 = 0xff;
- dev = PCI_BDF(0, 0, 0);
- pci_hose_read_config_word(&hose[0], dev, PCI_COMMAND, ®16);
- reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
- pci_hose_write_config_word(&hose[0], dev, PCI_COMMAND, reg16);
-
- /*
- * Clear non-reserved bits in status register.
- */
- pci_hose_write_config_word(&hose[0], dev, PCI_STATUS, 0xffff);
- pci_hose_write_config_byte(&hose[0], dev, PCI_LATENCY_TIMER, 0x80);
- pci_hose_write_config_byte(&hose[0], dev, PCI_CACHE_LINE_SIZE, 0x08);
-
- /*
- * Hose scan.
- */
- hose->last_busno = pci_hose_scan(hose);
+#ifndef CONFIG_MPC83XX_PCI2
+ mpc83xx_pci_init(1, reg, 0);
+#else
+ mpc83xx_pci_init(2, reg, 0);
+#endif
}
#endif /* CONFIG_PCISLAVE */
-
-#if defined(CONFIG_OF_LIBFDT)
-void ft_pci_setup(void *blob, bd_t *bd)
-{
- int nodeoffset;
- int tmp[2];
- const char *path;
-
- nodeoffset = fdt_path_offset(blob, "/aliases");
- if (nodeoffset >= 0) {
- path = fdt_getprop(blob, nodeoffset, "pci0", NULL);
- if (path) {
- tmp[0] = cpu_to_be32(hose[0].first_busno);
- tmp[1] = cpu_to_be32(hose[0].last_busno);
- do_fixup_by_path(blob, path, "bus-range",
- &tmp, sizeof(tmp), 1);
-
- tmp[0] = cpu_to_be32(gd->pci_clk);
- do_fixup_by_path(blob, path, "clock-frequency",
- &tmp, sizeof(tmp[0]), 1);
- }
- }
-}
-#endif /* CONFIG_OF_LIBFDT */
-#endif /* CONFIG_PCI */
projects / u-boot / blobdiff