diff options
Diffstat (limited to 'board/gdsys/gdppc440etx/gdppc440etx.c')
| -rw-r--r-- | board/gdsys/gdppc440etx/gdppc440etx.c | 155 |
1 files changed, 4 insertions, 151 deletions
diff --git a/board/gdsys/gdppc440etx/gdppc440etx.c b/board/gdsys/gdppc440etx/gdppc440etx.c index 90dbe52aa..ecbc3c3d1 100644 --- a/board/gdsys/gdppc440etx/gdppc440etx.c +++ b/board/gdsys/gdppc440etx/gdppc440etx.c @@ -29,6 +29,7 @@ #include <ppc4xx.h> #include <asm/processor.h> #include <asm/io.h> +#include <asm/4xx_pci.h> DECLARE_GLOBAL_DATA_PTR; @@ -158,55 +159,13 @@ int checkboard(void) } /* - * pci_pre_init - * - * This routine is called just prior to registering the hose and gives - * the board the opportunity to check things. Returning a value of zero - * indicates that things are bad & PCI initialization should be aborted. - * - * Different boards may wish to customize the pci controller structure - * (add regions, override default access routines, etc) or perform - * certain pre-initialization actions. - * + * Override weak pci_pre_init() */ #if defined(CONFIG_PCI) int pci_pre_init(struct pci_controller *hose) { - unsigned long addr; - - /* - * Set priority for all PLB3 devices to 0. - * Set PLB3 arbiter to fair mode. - */ - mfsdr(SD0_AMP1, addr); - mtsdr(SD0_AMP1, (addr & 0x000000FF) | 0x0000FF00); - addr = mfdcr(PLB3_ACR); - mtdcr(PLB3_ACR, addr | 0x80000000); - - /* - * Set priority for all PLB4 devices to 0. - */ - mfsdr(SD0_AMP0, addr); - mtsdr(SD0_AMP0, (addr & 0x000000FF) | 0x0000FF00); - addr = mfdcr(PLB4_ACR) | 0xa0000000; /* Was 0x8---- */ - mtdcr(PLB4_ACR, addr); - - /* - * Set Nebula PLB4 arbiter to fair mode. - */ - /* Segment0 */ - addr = (mfdcr(PLB0_ACR) & ~PLB0_ACR_PPM_MASK) | PLB0_ACR_PPM_FAIR; - addr = (addr & ~PLB0_ACR_HBU_MASK) | PLB0_ACR_HBU_ENABLED; - addr = (addr & ~PLB0_ACR_RDP_MASK) | PLB0_ACR_RDP_4DEEP; - addr = (addr & ~PLB0_ACR_WRP_MASK) | PLB0_ACR_WRP_2DEEP; - mtdcr(PLB0_ACR, addr); - - /* Segment1 */ - addr = (mfdcr(PLB1_ACR) & ~PLB1_ACR_PPM_MASK) | PLB1_ACR_PPM_FAIR; - addr = (addr & ~PLB1_ACR_HBU_MASK) | PLB1_ACR_HBU_ENABLED; - addr = (addr & ~PLB1_ACR_RDP_MASK) | PLB1_ACR_RDP_4DEEP; - addr = (addr & ~PLB1_ACR_WRP_MASK) | PLB1_ACR_WRP_2DEEP; - mtdcr(PLB1_ACR, addr); + /* First call common code */ + __pci_pre_init(hose); /* enable 66 MHz ext. Clock */ out32(GPIO1_TCR, in32(GPIO1_TCR) | 0x00008000); @@ -215,109 +174,3 @@ int pci_pre_init(struct pci_controller *hose) return 1; } #endif /* defined(CONFIG_PCI) */ - -/* - * pci_target_init - * - * The bootstrap configuration provides default settings for the pci - * inbound map (PIM). But the bootstrap config choices are limited and - * may not be sufficient for a given board. - * - */ -#if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT) -void pci_target_init(struct pci_controller *hose) -{ - /* - * Set up Direct MMIO registers - */ - - /* - * PowerPC440 EP PCI Master configuration. - * Map one 1Gig range of PLB/processor addresses to PCI memory space. - * PLB address 0xA0000000-0xDFFFFFFF - * ==> PCI address 0xA0000000-0xDFFFFFFF - * Use byte reversed out routines to handle endianess. - * Make this region non-prefetchable. - */ - out32r(PCIL0_PMM0MA, 0x00000000); /* disabled b4 setting */ - out32r(PCIL0_PMM0LA, CONFIG_SYS_PCI_MEMBASE); - out32r(PCIL0_PMM0PCILA, CONFIG_SYS_PCI_MEMBASE); - out32r(PCIL0_PMM0PCIHA, 0x00000000); - out32r(PCIL0_PMM0MA, 0xE0000001); /* 512M, no prefetch, enable region */ - - out32r(PCIL0_PMM1MA, 0x00000000); /* disabled b4 setting */ - out32r(PCIL0_PMM1LA, CONFIG_SYS_PCI_MEMBASE2); - out32r(PCIL0_PMM1PCILA, CONFIG_SYS_PCI_MEMBASE2); - out32r(PCIL0_PMM1PCIHA, 0x00000000); - out32r(PCIL0_PMM1MA, 0xE0000001); /* 512M, no prefetch, enable region */ - - out32r(PCIL0_PTM1MS, 0x00000001); - out32r(PCIL0_PTM1LA, 0); - out32r(PCIL0_PTM2MS, 0); - out32r(PCIL0_PTM2LA, 0); - - /* - * Set up Configuration registers - */ - - /* Program the board's subsystem id/vendor id */ - pci_write_config_word(0, PCI_SUBSYSTEM_VENDOR_ID, - CONFIG_SYS_PCI_SUBSYS_VENDORID); - pci_write_config_word(0, PCI_SUBSYSTEM_ID, CONFIG_SYS_PCI_SUBSYS_ID); - - /* Configure command register as bus master */ - pci_write_config_word(0, PCI_COMMAND, PCI_COMMAND_MASTER); - - /* 240nS PCI clock */ - pci_write_config_word(0, PCI_LATENCY_TIMER, 1); - - /* No error reporting */ - pci_write_config_word(0, PCI_ERREN, 0); - - pci_write_config_dword(0, PCI_BRDGOPT2, 0x00000101); - -} -#endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT) */ - -/* - * pci_master_init - * - */ -#if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_MASTER_INIT) -void pci_master_init(struct pci_controller *hose) -{ - unsigned short temp_short; - - /* - * Write the PowerPC440 EP PCI Configuration regs. - * Enable PowerPC440 EP to be a master on the PCI bus (PMM). - * Enable PowerPC440 EP to act as a PCI memory target (PTM). - */ - pci_read_config_word(0, PCI_COMMAND, &temp_short); - pci_write_config_word(0, PCI_COMMAND, - temp_short | PCI_COMMAND_MASTER | - PCI_COMMAND_MEMORY); -} -#endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_MASTER_INIT) */ - -/* - * is_pci_host - * - * This routine is called to determine if a pci scan should be - * performed. With various hardware environments (especially cPCI and - * PPMC) it's insufficient to depend on the state of the arbiter enable - * bit in the strap register, or generic host/adapter assumptions. - * - * Rather than hard-code a bad assumption in the general 440 code, the - * 440 pci code requires the board to decide at runtime. - * - * Return 0 for adapter mode, non-zero for host (monarch) mode. - * - * - */ -#if defined(CONFIG_PCI) -int is_pci_host(struct pci_controller *hose) -{ - return 1; -} -#endif /* defined(CONFIG_PCI) */ |