diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/fsl_pci_init.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/drivers/pci/fsl_pci_init.c b/drivers/pci/fsl_pci_init.c index 1d75a82..0d46c96 100644 --- a/drivers/pci/fsl_pci_init.c +++ b/drivers/pci/fsl_pci_init.c @@ -211,6 +211,95 @@ static int fsl_pci_setup_inbound_windows(struct pci_controller *hose, return 1; } +#ifdef CONFIG_FSL_CORENET +static void fsl_pcie_boot_master(pit_t *pi) +{ + /* configure inbound window for slave's u-boot image */ + debug("PCIEBOOT - MASTER: Inbound window for slave's image; " + "Local = 0x%llx, Bus = 0x%llx, Size = 0x%x\n", + (u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS, + (u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS1, + CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE); + struct pci_region r_inbound; + u32 sz_inbound = __ilog2_u64(CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE) + - 1; + pci_set_region(&r_inbound, + CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS1, + CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS, + sz_inbound, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + + set_inbound_window(pi--, &r_inbound, + CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE); + + /* configure inbound window for slave's u-boot image */ + debug("PCIEBOOT - MASTER: Inbound window for slave's image; " + "Local = 0x%llx, Bus = 0x%llx, Size = 0x%x\n", + (u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS, + (u64)CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS2, + CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE); + pci_set_region(&r_inbound, + CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_BUS2, + CONFIG_SRIO_PCIE_BOOT_IMAGE_MEM_PHYS, + sz_inbound, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + + set_inbound_window(pi--, &r_inbound, + CONFIG_SRIO_PCIE_BOOT_IMAGE_SIZE); + + /* configure inbound window for slave's ucode and ENV */ + debug("PCIEBOOT - MASTER: Inbound window for slave's " + "ucode and ENV; " + "Local = 0x%llx, Bus = 0x%llx, Size = 0x%x\n", + (u64)CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_PHYS, + (u64)CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_BUS, + CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_SIZE); + sz_inbound = __ilog2_u64(CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_SIZE) + - 1; + pci_set_region(&r_inbound, + CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_BUS, + CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_MEM_PHYS, + sz_inbound, + PCI_REGION_MEM | PCI_REGION_SYS_MEMORY); + + set_inbound_window(pi--, &r_inbound, + CONFIG_SRIO_PCIE_BOOT_UCODE_ENV_SIZE); +} + +static void fsl_pcie_boot_master_release_slave(int port) +{ + unsigned long release_addr; + + /* now release slave's core 0 */ + switch (port) { + case 1: + release_addr = CONFIG_SYS_PCIE1_MEM_VIRT + + CONFIG_SRIO_PCIE_BOOT_BRR_OFFSET; + break; + case 2: + release_addr = CONFIG_SYS_PCIE2_MEM_VIRT + + CONFIG_SRIO_PCIE_BOOT_BRR_OFFSET; + break; + case 3: + release_addr = CONFIG_SYS_PCIE3_MEM_VIRT + + CONFIG_SRIO_PCIE_BOOT_BRR_OFFSET; + break; + default: + release_addr = 0; + break; + } + if (release_addr != 0) { + out_be32((void *)release_addr, + CONFIG_SRIO_PCIE_BOOT_RELEASE_MASK); + debug("PCIEBOOT - MASTER: " + "Release slave successfully! Now the slave should start up!\n"); + } else { + debug("PCIEBOOT - MASTER: " + "Release slave failed!\n"); + } +} +#endif + void fsl_pci_init(struct pci_controller *hose, struct fsl_pci_info *pci_info) { u32 cfg_addr = (u32)&((ccsr_fsl_pci_t *)pci_info->regs)->cfg_addr; @@ -295,8 +384,25 @@ void fsl_pci_init(struct pci_controller *hose, struct fsl_pci_info *pci_info) /* see if we are a PCIe or PCI controller */ pci_hose_read_config_byte(hose, dev, FSL_PCIE_CAP_ID, &pcie_cap); +#ifdef CONFIG_FSL_CORENET + /* boot from PCIE --master */ + char *s = getenv("bootmaster"); + char pcie[6]; + sprintf(pcie, "PCIE%d", pci_info->pci_num); + + if (s && (strcmp(s, pcie) == 0)) { + debug("PCIEBOOT - MASTER: Master port [ %d ] for pcie boot.\n", + pci_info->pci_num); + fsl_pcie_boot_master((pit_t *)pi); + } else { + /* inbound */ + inbound = fsl_pci_setup_inbound_windows(hose, + out_lo, pcie_cap, pi); + } +#else /* inbound */ inbound = fsl_pci_setup_inbound_windows(hose, out_lo, pcie_cap, pi); +#endif for (r = 0; r < hose->region_count; r++) debug("PCI reg:%d %016llx:%016llx %016llx %08lx\n", r, @@ -488,6 +594,16 @@ int fsl_pci_init_port(struct fsl_pci_info *pci_info, if (fsl_is_pci_agent(hose)) { fsl_pci_config_unlock(hose); hose->last_busno = hose->first_busno; +#ifdef CONFIG_FSL_CORENET + } else { + /* boot from PCIE --master releases slave's core 0 */ + char *s = getenv("bootmaster"); + char pcie[6]; + sprintf(pcie, "PCIE%d", pci_info->pci_num); + + if (s && (strcmp(s, pcie) == 0)) + fsl_pcie_boot_master_release_slave(pci_info->pci_num); +#endif } pci_hose_read_config_byte(hose, dev, FSL_PCIE_CAP_ID, &pcie_cap); |