diff options
Diffstat (limited to 'board/ixdp425/ixdp425.c')
| -rw-r--r-- | board/ixdp425/ixdp425.c | 155 |
1 files changed, 133 insertions, 22 deletions
diff --git a/board/ixdp425/ixdp425.c b/board/ixdp425/ixdp425.c index a29d584..7269458 100644 --- a/board/ixdp425/ixdp425.c +++ b/board/ixdp425/ixdp425.c @@ -33,24 +33,82 @@ #include <malloc.h> #include <netdev.h> #include <asm/arch/ixp425.h> +#include <asm/io.h> +#ifdef CONFIG_PCI +#include <pci.h> +#include <asm/arch/ixp425pci.h> +#endif DECLARE_GLOBAL_DATA_PTR; +#define IXDP425_LED_PORT 0x52000000 /* 4-digit hex display */ + +int board_early_init_f(void) +{ + /* CS2: LED port */ + writel(0xbcff0002, IXP425_EXP_CS2); + writew(0x0001, IXDP425_LED_PORT); /* output postcode to LEDs */ + + return 0; +} + +#ifdef CONFIG_PCI +#ifndef CONFIG_PCI_PNP +static struct pci_config_table pci_ixpdp425_config_table[] = { + { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x00, PCI_ANY_ID, + pci_cfgfunc_config_device, + { 0x400, + 0x40000000, + PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER } }, + + { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x01, PCI_ANY_ID, + pci_cfgfunc_config_device, + { 0x800, + 0x40010000, + PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER } }, + + { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x02, PCI_ANY_ID, + pci_cfgfunc_config_device, + { 0xc00, + 0x40020000, + PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER } }, + + { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, 0x03, PCI_ANY_ID, + pci_cfgfunc_config_device, + { 0x1000, + 0x40030000, + PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER } }, + { } +}; +#endif + +struct pci_controller hose = { +#ifndef CONFIG_PCI_PNP + config_table: pci_ixpdp425_config_table, +#endif +}; +#endif /* CONFIG_PCI */ + + /* * Miscelaneous platform dependent initialisations */ -int board_init (void) +int board_init(void) { + writew(0x0002, IXDP425_LED_PORT); /* output postcode to LEDs */ + +#ifdef CONFIG_IXDPG425 + /* arch number of IXDP */ + gd->bd->bi_arch_number = MACH_TYPE_IXDPG425; +#else /* arch number of IXDP */ gd->bd->bi_arch_number = MACH_TYPE_IXDP425; +#endif /* adress of boot parameters */ gd->bd->bi_boot_params = 0x00000100; #ifdef CONFIG_IXDPG425 - /* arch number of IXDP */ - gd->bd->bi_arch_number = MACH_TYPE_IXDPG425; - /* * Get realtek RTL8305 switch and SLIC out of reset */ @@ -60,19 +118,56 @@ int board_init (void) GPIO_OUTPUT_ENABLE(CONFIG_SYS_GPIO_SLIC_RESET_N); /* - * Setup GPIO's for PCI INTA & INTB + * Setup GPIOs for PCI INTA & INTB */ GPIO_OUTPUT_DISABLE(CONFIG_SYS_GPIO_PCI_INTA_N); GPIO_INT_ACT_LOW_SET(CONFIG_SYS_GPIO_PCI_INTA_N); GPIO_OUTPUT_DISABLE(CONFIG_SYS_GPIO_PCI_INTB_N); GPIO_INT_ACT_LOW_SET(CONFIG_SYS_GPIO_PCI_INTB_N); - /* - * Setup GPIO's for 33MHz clock output - */ - *IXP425_GPIO_GPCLKR = 0x01FF01FF; + /* Setup GPIOs for 33MHz clock output */ + writel(0x01FF01FF, IXP425_GPIO_GPCLKR); + GPIO_OUTPUT_ENABLE(CONFIG_SYS_GPIO_PCI_CLK); GPIO_OUTPUT_ENABLE(CONFIG_SYS_GPIO_EXTBUS_CLK); + + /* set GPIO8..11 interrupt type to active low */ + writel((0x1 << 9) | (0x1 << 6) | (0x1 << 3) | 0x1, IXP425_GPIO_GPIT2R); + + /* clear pending interrupts */ + writel(-1, IXP425_GPIO_GPISR); + + /* assert PCI reset */ + GPIO_OUTPUT_CLEAR(CONFIG_SYS_GPIO_SLIC_RESET_N); + + udelay(533); + + /* deassert PCI reset */ + GPIO_OUTPUT_SET(CONFIG_SYS_GPIO_SLIC_RESET_N); + + udelay(533); + +#else /* IXDP425 */ + /* Setup GPIOs for 33MHz ExpBus and PCI clock output */ + writel(0x01FF01FF, IXP425_GPIO_GPCLKR); + GPIO_OUTPUT_ENABLE(CONFIG_SYS_GPIO_PCI_CLK); + GPIO_OUTPUT_ENABLE(CONFIG_SYS_GPIO_EXTBUS_CLK); + GPIO_OUTPUT_ENABLE(CONFIG_SYS_GPIO_PCI_RESET_N); + + /* set GPIO8..11 interrupt type to active low */ + writel((0x1 << 9) | (0x1 << 6) | (0x1 << 3) | 0x1, IXP425_GPIO_GPIT2R); + /* clear pending interrupts */ + writel(-1, IXP425_GPIO_GPISR); + + /* assert PCI reset */ + GPIO_OUTPUT_CLEAR(CONFIG_SYS_GPIO_PCI_RESET_N); + + udelay(533); + + /* deassert PCI reset */ + GPIO_OUTPUT_SET(CONFIG_SYS_GPIO_PCI_RESET_N); + + udelay(533); #endif return 0; @@ -98,30 +193,46 @@ int checkboard(void) } putc('\n'); - return (0); + return 0; } -int dram_init (void) +int dram_init(void) { - gd->bd->bi_dram[0].start = PHYS_SDRAM_1; - gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE; - - return (0); + /* we can only map 64MB via PCI, so we limit memory + until a better solution is implemented. */ +#ifdef CONFIG_PCI + gd->ram_size = get_ram_size(CONFIG_SYS_SDRAM_BASE, 64<<20); +#else + gd->ram_size = get_ram_size(CONFIG_SYS_SDRAM_BASE, 256<<20); +#endif + return 0; } -#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI) -extern struct pci_controller hose; -extern void pci_ixp_init(struct pci_controller * hose); - +#ifdef CONFIG_PCI void pci_init_board(void) { - extern void pci_ixp_init (struct pci_controller *hose); - pci_ixp_init(&hose); } + +/* + * dev 0 on the PCI bus is not the host bridge, so we have to override + * these functions in order to not skip PCI slot 0 during configuration. +*/ +int pci_skip_dev(struct pci_controller *hose, pci_dev_t dev) +{ + return 0; +} +int pci_print_dev(struct pci_controller *hose, pci_dev_t dev) +{ + return 1; +} + #endif int board_eth_init(bd_t *bis) { - return pci_eth_init(bis); +#ifdef CONFIG_PCI + pci_eth_init(bis); +#endif + return cpu_eth_init(bis); } |