diff options
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pci-uclass.c | 24 | ||||
| -rw-r--r-- | drivers/pci/pci_auto.c | 14 | ||||
| -rw-r--r-- | drivers/pci/pci_compat.c | 15 | ||||
| -rw-r--r-- | drivers/pci/pci_internal.h | 12 | ||||
| -rw-r--r-- | drivers/pci/pci_rom.c | 6 |
5 files changed, 46 insertions, 25 deletions
diff --git a/drivers/pci/pci-uclass.c b/drivers/pci/pci-uclass.c index 685df9d274..61292d72bd 100644 --- a/drivers/pci/pci-uclass.c +++ b/drivers/pci/pci-uclass.c @@ -22,7 +22,7 @@ DECLARE_GLOBAL_DATA_PTR; -static int pci_get_bus(int busnum, struct udevice **busp) +int pci_get_bus(int busnum, struct udevice **busp) { int ret; @@ -41,20 +41,6 @@ static int pci_get_bus(int busnum, struct udevice **busp) return ret; } -struct pci_controller *pci_bus_to_hose(int busnum) -{ - struct udevice *bus; - int ret; - - ret = pci_get_bus(busnum, &bus); - if (ret) { - debug("%s: Cannot get bus %d: ret=%d\n", __func__, busnum, ret); - return NULL; - } - - return dev_get_uclass_priv(bus); -} - struct udevice *pci_get_controller(struct udevice *dev) { while (device_is_on_pci_bus(dev)) @@ -1067,6 +1053,14 @@ u32 dm_pci_read_bar32(struct udevice *dev, int barnum) return addr & PCI_BASE_ADDRESS_MEM_MASK; } +void dm_pci_write_bar32(struct udevice *dev, int barnum, u32 addr) +{ + int bar; + + bar = PCI_BASE_ADDRESS_0 + barnum * 4; + dm_pci_write_config32(dev, bar, addr); +} + static int _dm_pci_bus_to_phys(struct udevice *ctlr, pci_addr_t bus_addr, unsigned long flags, unsigned long skip_mask, phys_addr_t *pa) diff --git a/drivers/pci/pci_auto.c b/drivers/pci/pci_auto.c index 5cfa135ba6..88bc416c61 100644 --- a/drivers/pci/pci_auto.c +++ b/drivers/pci/pci_auto.c @@ -9,6 +9,7 @@ */ #include <common.h> +#include <dm.h> #include <errno.h> #include <pci.h> @@ -167,8 +168,8 @@ void dm_pciauto_prescan_setup_bridge(struct udevice *dev, int sub_bus) struct pci_region *pci_prefetch; struct pci_region *pci_io; u16 cmdstat, prefechable_64; - /* The root controller has the region information */ - struct pci_controller *ctlr_hose = pci_bus_to_hose(0); + struct udevice *ctlr = pci_get_controller(dev); + struct pci_controller *ctlr_hose = dev_get_uclass_priv(ctlr); pci_mem = ctlr_hose->pci_mem; pci_prefetch = ctlr_hose->pci_prefetch; @@ -248,9 +249,8 @@ void dm_pciauto_postscan_setup_bridge(struct udevice *dev, int sub_bus) struct pci_region *pci_mem; struct pci_region *pci_prefetch; struct pci_region *pci_io; - - /* The root controller has the region information */ - struct pci_controller *ctlr_hose = pci_bus_to_hose(0); + struct udevice *ctlr = pci_get_controller(dev); + struct pci_controller *ctlr_hose = dev_get_uclass_priv(ctlr); pci_mem = ctlr_hose->pci_mem; pci_prefetch = ctlr_hose->pci_prefetch; @@ -311,13 +311,13 @@ int dm_pciauto_config_device(struct udevice *dev) unsigned int sub_bus = PCI_BUS(dm_pci_get_bdf(dev)); unsigned short class; bool enum_only = false; + struct udevice *ctlr = pci_get_controller(dev); + struct pci_controller *ctlr_hose = dev_get_uclass_priv(ctlr); int n; #ifdef CONFIG_PCI_ENUM_ONLY enum_only = true; #endif - /* The root controller has the region information */ - struct pci_controller *ctlr_hose = pci_bus_to_hose(0); pci_mem = ctlr_hose->pci_mem; pci_prefetch = ctlr_hose->pci_prefetch; diff --git a/drivers/pci/pci_compat.c b/drivers/pci/pci_compat.c index dd15eb19f8..ddaf358e26 100644 --- a/drivers/pci/pci_compat.c +++ b/drivers/pci/pci_compat.c @@ -12,6 +12,7 @@ #include <pci.h> #include <dm/device-internal.h> #include <dm/lists.h> +#include "pci_internal.h" #define PCI_HOSE_OP(rw, name, size, type) \ int pci_hose_##rw##_config_##name(struct pci_controller *hose, \ @@ -36,3 +37,17 @@ pci_dev_t pci_find_devices(struct pci_device_id *ids, int index) return -1; return dm_pci_get_bdf(dev); } + +struct pci_controller *pci_bus_to_hose(int busnum) +{ + struct udevice *bus; + int ret; + + ret = pci_get_bus(busnum, &bus); + if (ret) { + debug("%s: Cannot get bus %d: ret=%d\n", __func__, busnum, ret); + return NULL; + } + + return dev_get_uclass_priv(bus); +} diff --git a/drivers/pci/pci_internal.h b/drivers/pci/pci_internal.h index 0867575a58..616b9c174c 100644 --- a/drivers/pci/pci_internal.h +++ b/drivers/pci/pci_internal.h @@ -47,4 +47,16 @@ void dm_pciauto_postscan_setup_bridge(struct udevice *dev, int sub_bus); */ int dm_pciauto_config_device(struct udevice *dev); +/** + * pci_get_bus() - Get a pointer to a bus, given its number + * + * This looks up a PCI bus based on its bus number. The bus is probed if + * necessary. + * + * @busnum: PCI bus number to look up + * @busp: Returns PCI bus on success + * @return 0 on success, or -ve error + */ +int pci_get_bus(int busnum, struct udevice **busp); + #endif diff --git a/drivers/pci/pci_rom.c b/drivers/pci/pci_rom.c index ed2f61dfc3..d5bf6f4c47 100644 --- a/drivers/pci/pci_rom.c +++ b/drivers/pci/pci_rom.c @@ -328,12 +328,12 @@ int dm_pci_run_vga_bios(struct udevice *dev, int (*int15_handler)(void), #ifdef CONFIG_BIOSEMU BE_VGAInfo *info; - ret = biosemu_setup(dm_pci_get_bdf(dev), &info); + ret = biosemu_setup(dev, &info); if (ret) goto err; biosemu_set_interrupt_handler(0x15, int15_handler); - ret = biosemu_run(dm_pci_get_bdf(dev), (uchar *)ram, 1 << 16, - info, true, vesa_mode, &mode_info); + ret = biosemu_run(dev, (uchar *)ram, 1 << 16, info, + true, vesa_mode, &mode_info); if (ret) goto err; #endif |