diff options
Diffstat (limited to 'cpu/mcf5445x/pci.c')
| -rw-r--r-- | cpu/mcf5445x/pci.c | 61 |
1 files changed, 18 insertions, 43 deletions
diff --git a/cpu/mcf5445x/pci.c b/cpu/mcf5445x/pci.c index 8ace536..0398469 100644 --- a/cpu/mcf5445x/pci.c +++ b/cpu/mcf5445x/pci.c @@ -46,48 +46,18 @@ int pci_##rw##_cfg_##size(struct pci_controller *hose, \ u16 cfg_type = 0; \ addr = ((offset & 0xfc) | cfg_type | (dev) | 0x80000000); \ out_be32(hose->cfg_addr, addr); \ - __asm__ __volatile__("nop"); \ cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \ out_be32(hose->cfg_addr, addr & 0x7fffffff); \ - __asm__ __volatile__("nop"); \ return 0; \ } PCI_OP(read, byte, u8 *, in_8, 3) PCI_OP(read, word, u16 *, in_le16, 2) +PCI_OP(read, dword, u32 *, in_le32, 0) PCI_OP(write, byte, u8, out_8, 3) PCI_OP(write, word, u16, out_le16, 2) PCI_OP(write, dword, u32, out_le32, 0) -int pci_read_cfg_dword(struct pci_controller *hose, pci_dev_t dev, - int offset, u32 * val) -{ - u32 addr; - u32 tmpv; - u32 mask = 2; /* word access */ - /* Read lower 16 bits */ - addr = ((offset & 0xfc) | (dev) | 0x80000000); - out_be32(hose->cfg_addr, addr); - __asm__ __volatile__("nop"); - *val = (u32) in_le16((u16 *) (hose->cfg_data + (offset & mask))); - out_be32(hose->cfg_addr, addr & 0x7fffffff); - __asm__ __volatile__("nop"); - - /* Read upper 16 bits */ - offset += 2; - addr = ((offset & 0xfc) | 1 | (dev) | 0x80000000); - out_be32(hose->cfg_addr, addr); - __asm__ __volatile__("nop"); - tmpv = (u32) in_le16((u16 *) (hose->cfg_data + (offset & mask))); - out_be32(hose->cfg_addr, addr & 0x7fffffff); - __asm__ __volatile__("nop"); - - /* combine results into dword value */ - *val = (tmpv << 16) | *val; - - return 0; -} - void pci_mcf5445x_init(struct pci_controller *hose) { volatile pci_t *pci = (volatile pci_t *)MMAP_PCI; @@ -95,7 +65,7 @@ void pci_mcf5445x_init(struct pci_controller *hose) volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO; u32 barEn = 0; - pciarb->acr = 0x001f001f; + pciarb->acr = 0x001F001F; /* Set PCIGNT1, PCIREQ1, PCIREQ0/PCIGNTIN, PCIGNT0/PCIREQOUT, PCIREQ2, PCIGNT2 */ @@ -104,53 +74,58 @@ void pci_mcf5445x_init(struct pci_controller *hose) GPIO_PAR_PCI_GNT0 | GPIO_PAR_PCI_REQ3_REQ3 | GPIO_PAR_PCI_REQ2 | GPIO_PAR_PCI_REQ1 | GPIO_PAR_PCI_REQ0; + /* Assert reset bit */ + pci->gscr |= PCI_GSCR_PR; + pci->tcr1 |= PCI_TCR1_P; /* Initiator windows */ - pci->iw0btar = CFG_PCI_MEM_PHYS; - pci->iw1btar = CFG_PCI_IO_PHYS; - pci->iw2btar = CFG_PCI_CFG_PHYS; + pci->iw0btar = CFG_PCI_MEM_PHYS | (CFG_PCI_MEM_PHYS >> 16); + pci->iw1btar = CFG_PCI_IO_PHYS | (CFG_PCI_IO_PHYS >> 16); + pci->iw2btar = CFG_PCI_CFG_PHYS | (CFG_PCI_CFG_PHYS >> 16); pci->iwcr = PCI_IWCR_W0C_EN | PCI_IWCR_W1C_EN | PCI_IWCR_W1C_IO | PCI_IWCR_W2C_EN | PCI_IWCR_W2C_IO; + pci->icr = 0; + /* Enable bus master and mem access */ - pci->scr = PCI_SCR_MW | PCI_SCR_B | PCI_SCR_M; + pci->scr = PCI_SCR_B | PCI_SCR_M; /* Cache line size and master latency */ - pci->cr1 = PCI_CR1_CLS(8) | PCI_CR1_LTMR(0xFF); + pci->cr1 = PCI_CR1_CLS(8) | PCI_CR1_LTMR(0xF8); pci->cr2 = 0; #ifdef CFG_PCI_BAR0 pci->bar0 = PCI_BAR_BAR0(CFG_PCI_BAR0); pci->tbatr0 = CFG_PCI_TBATR0 | PCI_TBATR_EN; - barEn |= PCI_TCR1_B0E; + barEn |= PCI_TCR2_B0E; #endif #ifdef CFG_PCI_BAR1 pci->bar1 = PCI_BAR_BAR1(CFG_PCI_BAR1); pci->tbatr1 = CFG_PCI_TBATR1 | PCI_TBATR_EN; - barEn |= PCI_TCR1_B1E; + barEn |= PCI_TCR2_B1E; #endif #ifdef CFG_PCI_BAR2 pci->bar2 = PCI_BAR_BAR2(CFG_PCI_BAR2); pci->tbatr2 = CFG_PCI_TBATR2 | PCI_TBATR_EN; - barEn |= PCI_TCR1_B2E; + barEn |= PCI_TCR2_B2E; #endif #ifdef CFG_PCI_BAR3 pci->bar3 = PCI_BAR_BAR3(CFG_PCI_BAR3); pci->tbatr3 = CFG_PCI_TBATR3 | PCI_TBATR_EN; - barEn |= PCI_TCR1_B3E; + barEn |= PCI_TCR2_B3E; #endif #ifdef CFG_PCI_BAR4 pci->bar4 = PCI_BAR_BAR4(CFG_PCI_BAR4); pci->tbatr4 = CFG_PCI_TBATR4 | PCI_TBATR_EN; - barEn |= PCI_TCR1_B4E; + barEn |= PCI_TCR2_B4E; #endif #ifdef CFG_PCI_BAR5 pci->bar5 = PCI_BAR_BAR5(CFG_PCI_BAR5); pci->tbatr5 = CFG_PCI_TBATR5 | PCI_TBATR_EN; - barEn |= PCI_TCR1_B5E; + barEn |= PCI_TCR2_B5E; #endif pci->tcr2 = barEn; |