diff options
Diffstat (limited to 'board/freescale/mpc8349emds/pci.c')
| -rw-r--r-- | board/freescale/mpc8349emds/pci.c | 377 |
1 files changed, 60 insertions, 317 deletions
diff --git a/board/freescale/mpc8349emds/pci.c b/board/freescale/mpc8349emds/pci.c index ecc67b6..a783beb 100644 --- a/board/freescale/mpc8349emds/pci.c +++ b/board/freescale/mpc8349emds/pci.c @@ -20,58 +20,62 @@ */ #include <asm/mmu.h> +#include <asm/io.h> #include <common.h> -#include <asm/global_data.h> +#include <mpc83xx.h> #include <pci.h> -#include <asm/mpc8349_pci.h> #include <i2c.h> -#if defined(CONFIG_OF_LIBFDT) -#include <libfdt.h> -#include <fdt_support.h> -#endif - +#include <asm/fsl_i2c.h> DECLARE_GLOBAL_DATA_PTR; #ifdef CONFIG_PCI -/* System RAM mapped to PCI space */ -#define CONFIG_PCI_SYS_MEM_BUS CFG_SDRAM_BASE -#define CONFIG_PCI_SYS_MEM_PHYS CFG_SDRAM_BASE - -#ifndef CONFIG_PCI_PNP -static struct pci_config_table pci_mpc8349emds_config_table[] = { - {PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, - PCI_IDSEL_NUMBER, PCI_ANY_ID, - pci_cfgfunc_config_device, {PCI_ENET0_IOADDR, - PCI_ENET0_MEMADDR, - PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER - } +static struct pci_region pci1_regions[] = { + { + bus_start: CFG_PCI1_MEM_BASE, + phys_start: CFG_PCI1_MEM_PHYS, + size: CFG_PCI1_MEM_SIZE, + flags: PCI_REGION_MEM | PCI_REGION_PREFETCH + }, + { + bus_start: CFG_PCI1_IO_BASE, + phys_start: CFG_PCI1_IO_PHYS, + size: CFG_PCI1_IO_SIZE, + flags: PCI_REGION_IO + }, + { + bus_start: CFG_PCI1_MMIO_BASE, + phys_start: CFG_PCI1_MMIO_PHYS, + size: CFG_PCI1_MMIO_SIZE, + flags: PCI_REGION_MEM }, - {} }; -#endif -static struct pci_controller pci_hose[] = { - { -#ifndef CONFIG_PCI_PNP - config_table:pci_mpc8349emds_config_table, -#endif - }, - { -#ifndef CONFIG_PCI_PNP - config_table:pci_mpc8349emds_config_table, -#endif - } +#ifdef CONFIG_MPC83XX_PCI2 +static struct pci_region pci2_regions[] = { + { + bus_start: CFG_PCI2_MEM_BASE, + phys_start: CFG_PCI2_MEM_PHYS, + size: CFG_PCI2_MEM_SIZE, + flags: PCI_REGION_MEM | PCI_REGION_PREFETCH + }, + { + bus_start: CFG_PCI2_IO_BASE, + phys_start: CFG_PCI2_IO_PHYS, + size: CFG_PCI2_IO_SIZE, + flags: PCI_REGION_IO + }, + { + bus_start: CFG_PCI2_MMIO_BASE, + phys_start: CFG_PCI2_MMIO_PHYS, + size: CFG_PCI2_MMIO_SIZE, + flags: PCI_REGION_MEM + }, }; +#endif -/************************************************************************** - * - * pib_init() -- initialize the PCA9555PW IO expander on the PIB board - * - */ -void -pib_init(void) +void pib_init(void) { u8 val8, orig_i2c_bus; /* @@ -128,299 +132,38 @@ pib_init(void) i2c_set_bus_num(orig_i2c_bus); } -/************************************************************************** - * pci_init_board() - * - * NOTICE: PCI2 is not currently supported - * - */ -void -pci_init_board(void) +void pci_init_board(void) { - 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; - u16 reg16; - u32 reg32; - u32 dev; - struct pci_controller * hose; - - immr = (immap_t *)CFG_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; - - hose = &pci_hose[0]; + volatile immap_t *immr = (volatile immap_t *)CFG_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 + /* initialize the PCA9555PW IO expander on the PIB board */ pib_init(); - /* - * Configure PCI controller and PCI_CLK_OUTPUT both in 66M mode - */ - - reg32 = clk->occr; - udelay(2000); + /* Enable all 8 PCI_CLK_OUTPUTS */ clk->occr = 0xff000000; udelay(2000); - /* - * Release PCI RST Output signal - */ - pci_ctrl[0].gcr = 0; - udelay(2000); - pci_ctrl[0].gcr = 1; - -#ifdef CONFIG_MPC83XX_PCI2 - pci_ctrl[1].gcr = 0; - udelay(2000); - pci_ctrl[1].gcr = 1; -#endif - - /* We need to wait at least a 1sec based on PCI specs */ - { - int i; - - for (i = 0; i < 1000; ++i) - udelay (1000); - } - - /* - * Configure PCI Local Access Windows - */ + /* Configure PCI Local Access Windows */ pci_law[0].bar = CFG_PCI1_MEM_PHYS & LAWBAR_BAR; pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_1G; pci_law[1].bar = CFG_PCI1_IO_PHYS & LAWBAR_BAR; pci_law[1].ar = LAWAR_EN | LAWAR_SIZE_4M; - /* - * Configure PCI Outbound Translation Windows - */ - - /* PCI1 mem space - prefetch */ - pci_pot[0].potar = (CFG_PCI1_MEM_BASE >> 12) & POTAR_TA_MASK; - pci_pot[0].pobar = (CFG_PCI1_MEM_PHYS >> 12) & POBAR_BA_MASK; - pci_pot[0].pocmr = POCMR_EN | POCMR_PREFETCH_EN | (POCMR_CM_256M & POCMR_CM_MASK); - - /* PCI1 IO space */ - pci_pot[1].potar = (CFG_PCI1_IO_BASE >> 12) & POTAR_TA_MASK; - pci_pot[1].pobar = (CFG_PCI1_IO_PHYS >> 12) & POBAR_BA_MASK; - pci_pot[1].pocmr = POCMR_EN | POCMR_IO | (POCMR_CM_1M & POCMR_CM_MASK); - - /* PCI1 mmio - non-prefetch mem space */ - pci_pot[2].potar = (CFG_PCI1_MMIO_BASE >> 12) & POTAR_TA_MASK; - pci_pot[2].pobar = (CFG_PCI1_MMIO_PHYS >> 12) & POBAR_BA_MASK; - pci_pot[2].pocmr = POCMR_EN | (POCMR_CM_256M & POCMR_CM_MASK); - - /* - * Configure PCI Inbound Translation Windows - */ - - /* we need RAM mapped to PCI space for the devices to - * access main memory */ - pci_ctrl[0].pitar1 = 0x0; - pci_ctrl[0].pibar1 = 0x0; - pci_ctrl[0].piebar1 = 0x0; - pci_ctrl[0].piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP | (__ilog2(gd->ram_size) - 1); - - hose->first_busno = 0; - hose->last_busno = 0xff; - - /* PCI memory prefetch space */ - pci_set_region(hose->regions + 0, - CFG_PCI1_MEM_BASE, - CFG_PCI1_MEM_PHYS, - CFG_PCI1_MEM_SIZE, - PCI_REGION_MEM|PCI_REGION_PREFETCH); - - /* PCI memory space */ - pci_set_region(hose->regions + 1, - CFG_PCI1_MMIO_BASE, - CFG_PCI1_MMIO_PHYS, - CFG_PCI1_MMIO_SIZE, - PCI_REGION_MEM); - - /* PCI IO space */ - pci_set_region(hose->regions + 2, - CFG_PCI1_IO_BASE, - CFG_PCI1_IO_PHYS, - CFG_PCI1_IO_SIZE, - PCI_REGION_IO); - - /* System memory space */ - pci_set_region(hose->regions + 3, - CONFIG_PCI_SYS_MEM_BUS, - CONFIG_PCI_SYS_MEM_PHYS, - gd->ram_size, - PCI_REGION_MEM | PCI_REGION_MEMORY); - - hose->region_count = 4; - - pci_setup_indirect(hose, - (CFG_IMMR+0x8300), - (CFG_IMMR+0x8304)); - - pci_register_hose(hose); - - /* - * Write to Command register - */ - reg16 = 0xff; - dev = PCI_BDF(hose->first_busno, 0, 0); - pci_hose_read_config_word (hose, dev, PCI_COMMAND, ®16); - reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; - pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16); - - /* - * Clear non-reserved bits in status register. - */ - pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff); - pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80); - pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08); - -#ifdef CONFIG_PCI_SCAN_SHOW - printf("PCI: Bus Dev VenId DevId Class Int\n"); -#endif - /* - * Hose scan. - */ - hose->last_busno = pci_hose_scan(hose); - -#ifdef CONFIG_MPC83XX_PCI2 - hose = &pci_hose[1]; - - /* - * Configure PCI Outbound Translation Windows - */ - - /* PCI2 mem space - prefetch */ - pci_pot[3].potar = (CFG_PCI2_MEM_BASE >> 12) & POTAR_TA_MASK; - pci_pot[3].pobar = (CFG_PCI2_MEM_PHYS >> 12) & POBAR_BA_MASK; - pci_pot[3].pocmr = POCMR_EN | POCMR_PCI2 | POCMR_PREFETCH_EN | (POCMR_CM_256M & POCMR_CM_MASK); - - /* PCI2 IO space */ - pci_pot[4].potar = (CFG_PCI2_IO_BASE >> 12) & POTAR_TA_MASK; - pci_pot[4].pobar = (CFG_PCI2_IO_PHYS >> 12) & POBAR_BA_MASK; - pci_pot[4].pocmr = POCMR_EN | POCMR_PCI2 | POCMR_IO | (POCMR_CM_1M & POCMR_CM_MASK); - - /* PCI2 mmio - non-prefetch mem space */ - pci_pot[5].potar = (CFG_PCI2_MMIO_BASE >> 12) & POTAR_TA_MASK; - pci_pot[5].pobar = (CFG_PCI2_MMIO_PHYS >> 12) & POBAR_BA_MASK; - pci_pot[5].pocmr = POCMR_EN | POCMR_PCI2 | (POCMR_CM_256M & POCMR_CM_MASK); - - /* - * Configure PCI Inbound Translation Windows - */ - - /* we need RAM mapped to PCI space for the devices to - * access main memory */ - pci_ctrl[1].pitar1 = 0x0; - pci_ctrl[1].pibar1 = 0x0; - pci_ctrl[1].piebar1 = 0x0; - pci_ctrl[1].piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP | (__ilog2(gd->ram_size) - 1); - - hose->first_busno = pci_hose[0].last_busno + 1; - hose->last_busno = 0xff; - - /* PCI memory prefetch space */ - pci_set_region(hose->regions + 0, - CFG_PCI2_MEM_BASE, - CFG_PCI2_MEM_PHYS, - CFG_PCI2_MEM_SIZE, - PCI_REGION_MEM|PCI_REGION_PREFETCH); - - /* PCI memory space */ - pci_set_region(hose->regions + 1, - CFG_PCI2_MMIO_BASE, - CFG_PCI2_MMIO_PHYS, - CFG_PCI2_MMIO_SIZE, - PCI_REGION_MEM); - - /* PCI IO space */ - pci_set_region(hose->regions + 2, - CFG_PCI2_IO_BASE, - CFG_PCI2_IO_PHYS, - CFG_PCI2_IO_SIZE, - PCI_REGION_IO); - - /* System memory space */ - pci_set_region(hose->regions + 3, - CONFIG_PCI_SYS_MEM_BUS, - CONFIG_PCI_SYS_MEM_PHYS, - gd->ram_size, - PCI_REGION_MEM | PCI_REGION_MEMORY); - - hose->region_count = 4; - - pci_setup_indirect(hose, - (CFG_IMMR+0x8380), - (CFG_IMMR+0x8384)); - - pci_register_hose(hose); - - /* - * Write to Command register - */ - reg16 = 0xff; - dev = PCI_BDF(hose->first_busno, 0, 0); - pci_hose_read_config_word (hose, dev, PCI_COMMAND, ®16); - reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; - pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16); - - /* - * Clear non-reserved bits in status register. - */ - pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff); - pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80); - pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08); + udelay(2000); - /* - * 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 - } -#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(pci_hose[0].first_busno); - tmp[1] = cpu_to_be32(pci_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); - } -#ifdef CONFIG_MPC83XX_PCI2 - path = fdt_getprop(blob, nodeoffset, "pci1", NULL); - if (path) { - tmp[0] = cpu_to_be32(pci_hose[0].first_busno); - tmp[1] = cpu_to_be32(pci_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 - } -} -#endif /* CONFIG_OF_LIBFDT */ #endif /* CONFIG_PCI */ |