diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/fsl_pci_init.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/drivers/pci/fsl_pci_init.c b/drivers/pci/fsl_pci_init.c index 71ab02b..d762336 100644 --- a/drivers/pci/fsl_pci_init.c +++ b/drivers/pci/fsl_pci_init.c @@ -18,6 +18,8 @@ */ #include <common.h> +#include <malloc.h> +#include <asm/fsl_serdes.h> DECLARE_GLOBAL_DATA_PTR; @@ -513,6 +515,152 @@ void fsl_pci_config_unlock(struct pci_controller *hose) } } +#if defined(CONFIG_PCIE1) || defined(CONFIG_PCIE2) || \ + defined(CONFIG_PCIE3) || defined(CONFIG_PCIE4) +int fsl_configure_pcie(struct fsl_pci_info *info, + struct pci_controller *hose, + const char *connected, int busno) +{ + int is_endpoint; + + set_next_law(info->mem_phys, law_size_bits(info->mem_size), info->law); + set_next_law(info->io_phys, law_size_bits(info->io_size), info->law); + is_endpoint = fsl_setup_hose(hose, info->regs); + printf("PCIE%u: connected to %s as %s (base addr %lx)\n", + info->pci_num, connected, + is_endpoint ? "Endpoint" : "Root Complex", info->regs); + return fsl_pci_init_port(info, hose, busno); +} + +#if defined(CONFIG_FSL_CORENET) + #define _DEVDISR_PCIE1 FSL_CORENET_DEVDISR_PCIE1 + #define _DEVDISR_PCIE2 FSL_CORENET_DEVDISR_PCIE2 + #define _DEVDISR_PCIE3 FSL_CORENET_DEVDISR_PCIE3 + #define _DEVDISR_PCIE4 FSL_CORENET_DEVDISR_PCIE4 + #define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR +#elif defined(CONFIG_MPC85xx) + #define _DEVDISR_PCIE1 MPC85xx_DEVDISR_PCIE + #define _DEVDISR_PCIE2 MPC85xx_DEVDISR_PCIE2 + #define _DEVDISR_PCIE3 MPC85xx_DEVDISR_PCIE3 + #define _DEVDISR_PCIE4 0 + #define CONFIG_SYS_MPC8xxx_GUTS_ADDR CONFIG_SYS_MPC85xx_GUTS_ADDR +#elif defined(CONFIG_MPC86xx) + #define _DEVDISR_PCIE1 MPC86xx_DEVDISR_PCIE1 + #define _DEVDISR_PCIE2 MPC86xx_DEVDISR_PCIE2 + #define _DEVDISR_PCIE3 0 + #define _DEVDISR_PCIE4 0 + #define CONFIG_SYS_MPC8xxx_GUTS_ADDR \ + (&((immap_t *)CONFIG_SYS_IMMR)->im_gur) +#else +#error "No defines for DEVDISR_PCIE" +#endif + +/* Implement a dummy function for those platforms w/o SERDES */ +static const char *__board_serdes_name(enum srds_prtcl device) +{ + switch (device) { +#ifdef CONFIG_SYS_PCIE1_NAME + case PCIE1: + return CONFIG_SYS_PCIE1_NAME; +#endif +#ifdef CONFIG_SYS_PCIE2_NAME + case PCIE2: + return CONFIG_SYS_PCIE2_NAME; +#endif +#ifdef CONFIG_SYS_PCIE3_NAME + case PCIE3: + return CONFIG_SYS_PCIE3_NAME; +#endif +#ifdef CONFIG_SYS_PCIE4_NAME + case PCIE4: + return CONFIG_SYS_PCIE4_NAME; +#endif + default: + return NULL; + } + + return NULL; +} + +__attribute__((weak, alias("__board_serdes_name"))) const char * +board_serdes_name(enum srds_prtcl device); + +static u32 devdisr_mask[] = { + _DEVDISR_PCIE1, + _DEVDISR_PCIE2, + _DEVDISR_PCIE3, + _DEVDISR_PCIE4, +}; + +int fsl_pcie_init_ctrl(int busno, u32 devdisr, enum srds_prtcl dev, + struct fsl_pci_info *pci_info) +{ + struct pci_controller *hose; + int num = dev - PCIE1; + + hose = calloc(1, sizeof(struct pci_controller)); + if (!hose) + return busno; + + if (is_serdes_configured(dev) && !(devdisr & devdisr_mask[num])) { + busno = fsl_configure_pcie(pci_info, hose, + board_serdes_name(dev), busno); + } else { + printf("PCIE%d: disabled\n", num + 1); + } + + return busno; +} + +int fsl_pcie_init_board(int busno) +{ + struct fsl_pci_info pci_info; + ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC8xxx_GUTS_ADDR; + u32 devdisr = in_be32(&gur->devdisr); + +#ifdef CONFIG_PCIE1 + SET_STD_PCIE_INFO(pci_info, 1); + busno = fsl_pcie_init_ctrl(busno, devdisr, PCIE1, &pci_info); +#else + setbits_be32(&gur->devdisr, _DEVDISR_PCIE1); /* disable */ +#endif + +#ifdef CONFIG_PCIE2 + SET_STD_PCIE_INFO(pci_info, 2); + busno = fsl_pcie_init_ctrl(busno, devdisr, PCIE2, &pci_info); +#else + setbits_be32(&gur->devdisr, _DEVDISR_PCIE2); /* disable */ +#endif + +#ifdef CONFIG_PCIE3 + SET_STD_PCIE_INFO(pci_info, 3); + busno = fsl_pcie_init_ctrl(busno, devdisr, PCIE3, &pci_info); +#else + setbits_be32(&gur->devdisr, _DEVDISR_PCIE3); /* disable */ +#endif + +#ifdef CONFIG_PCIE4 + SET_STD_PCIE_INFO(pci_info, 4); + busno = fsl_pcie_init_ctrl(busno, devdisr, PCIE4, &pci_info); +#else + setbits_be32(&gur->devdisr, _DEVDISR_PCIE4); /* disable */ +#endif + + return busno; +} +#else +int fsl_pcie_init_ctrl(int busno, u32 devdisr, enum srds_prtcl dev, + struct fsl_pci_info *pci_info) +{ + return busno; +} + +int fsl_pcie_init_board(int busno) +{ + return busno; +} +#endif + #ifdef CONFIG_OF_BOARD_SETUP #include <libfdt.h> #include <fdt_support.h> |