X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fpci%2Fpci.c;h=d864f137f540764049148234361107357363dc69;hb=d6cf707e819546623ed742b2324e8b4f106fcf5d;hp=398542b9e28d7279895de0e2d9c33a36a943e2fe;hpb=a1e47b66d98f5caf19895965cfe38c176bbf01e8;p=oweals%2Fu-boot.git diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 398542b9e2..d864f137f5 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -151,13 +151,14 @@ void pci_register_hose(struct pci_controller* hose) *phose = hose; } -struct pci_controller *pci_bus_to_hose (int bus) +struct pci_controller *pci_bus_to_hose(int bus) { struct pci_controller *hose; - for (hose = hose_head; hose; hose = hose->next) + for (hose = hose_head; hose; hose = hose->next) { if (bus >= hose->first_busno && bus <= hose->last_busno) return hose; + } printf("pci_bus_to_hose() failed\n"); return NULL; @@ -196,21 +197,20 @@ pci_dev_t pci_find_devices(struct pci_device_id *ids, int index) pci_dev_t bdf; int i, bus, found_multi = 0; - for (hose = hose_head; hose; hose = hose->next) - { + for (hose = hose_head; hose; hose = hose->next) { #ifdef CONFIG_SYS_SCSI_SCAN_BUS_REVERSE for (bus = hose->last_busno; bus >= hose->first_busno; bus--) #else for (bus = hose->first_busno; bus <= hose->last_busno; bus++) #endif - for (bdf = PCI_BDF(bus,0,0); + for (bdf = PCI_BDF(bus, 0, 0); #if defined(CONFIG_ELPPC) || defined(CONFIG_PPMC7XX) - bdf < PCI_BDF(bus,PCI_MAX_PCI_DEVICES-1,PCI_MAX_PCI_FUNCTIONS-1); + bdf < PCI_BDF(bus, PCI_MAX_PCI_DEVICES - 1, + PCI_MAX_PCI_FUNCTIONS - 1); #else - bdf < PCI_BDF(bus+1,0,0); + bdf < PCI_BDF(bus + 1, 0, 0); #endif - bdf += PCI_BDF(0,0,1)) - { + bdf += PCI_BDF(0, 0, 1)) { if (!PCI_FUNC(bdf)) { pci_read_config_byte(bdf, PCI_HEADER_TYPE, @@ -229,19 +229,19 @@ pci_dev_t pci_find_devices(struct pci_device_id *ids, int index) PCI_DEVICE_ID, &device); - for (i=0; ids[i].vendor != 0; i++) + for (i = 0; ids[i].vendor != 0; i++) { if (vendor == ids[i].vendor && - device == ids[i].device) - { + device == ids[i].device) { if (index <= 0) return bdf; index--; } + } } } - return (-1); + return -1; } pci_dev_t pci_find_device(unsigned int vendor, unsigned int device, int index) @@ -258,7 +258,7 @@ pci_dev_t pci_find_device(unsigned int vendor, unsigned int device, int index) * */ -int __pci_hose_phys_to_bus (struct pci_controller *hose, +int __pci_hose_phys_to_bus(struct pci_controller *hose, phys_addr_t phys_addr, unsigned long flags, unsigned long skip_mask, @@ -297,12 +297,14 @@ pci_addr_t pci_hose_phys_to_bus (struct pci_controller *hose, int ret; if (!hose) { - puts ("pci_hose_phys_to_bus: invalid hose\n"); + puts("pci_hose_phys_to_bus: invalid hose\n"); return bus_addr; } - /* if PCI_REGION_MEM is set we do a two pass search with preference - * on matches that don't have PCI_REGION_SYS_MEMORY set */ + /* + * if PCI_REGION_MEM is set we do a two pass search with preference + * on matches that don't have PCI_REGION_SYS_MEMORY set + */ if ((flags & PCI_REGION_MEM) == PCI_REGION_MEM) { ret = __pci_hose_phys_to_bus(hose, phys_addr, flags, PCI_REGION_SYS_MEMORY, &bus_addr); @@ -313,12 +315,12 @@ pci_addr_t pci_hose_phys_to_bus (struct pci_controller *hose, ret = __pci_hose_phys_to_bus(hose, phys_addr, flags, 0, &bus_addr); if (ret) - puts ("pci_hose_phys_to_bus: invalid physical address\n"); + puts("pci_hose_phys_to_bus: invalid physical address\n"); return bus_addr; } -int __pci_hose_bus_to_phys (struct pci_controller *hose, +int __pci_hose_bus_to_phys(struct pci_controller *hose, pci_addr_t bus_addr, unsigned long flags, unsigned long skip_mask, @@ -354,12 +356,14 @@ phys_addr_t pci_hose_bus_to_phys(struct pci_controller* hose, int ret; if (!hose) { - puts ("pci_hose_bus_to_phys: invalid hose\n"); + puts("pci_hose_bus_to_phys: invalid hose\n"); return phys_addr; } - /* if PCI_REGION_MEM is set we do a two pass search with preference - * on matches that don't have PCI_REGION_SYS_MEMORY set */ + /* + * if PCI_REGION_MEM is set we do a two pass search with preference + * on matches that don't have PCI_REGION_SYS_MEMORY set + */ if ((flags & PCI_REGION_MEM) == PCI_REGION_MEM) { ret = __pci_hose_bus_to_phys(hose, bus_addr, flags, PCI_REGION_SYS_MEMORY, &phys_addr); @@ -370,7 +374,7 @@ phys_addr_t pci_hose_bus_to_phys(struct pci_controller* hose, ret = __pci_hose_bus_to_phys(hose, bus_addr, flags, 0, &phys_addr); if (ret) - puts ("pci_hose_bus_to_phys: invalid physical address\n"); + puts("pci_hose_bus_to_phys: invalid physical address\n"); return phys_addr; } @@ -385,20 +389,21 @@ int pci_hose_config_device(struct pci_controller *hose, pci_addr_t mem, unsigned long command) { - unsigned int bar_response, old_command; + u32 bar_response; + unsigned int old_command; pci_addr_t bar_value; pci_size_t bar_size; unsigned char pin; int bar, found_mem64; - debug ("PCI Config: I/O=0x%lx, Memory=0x%llx, Command=0x%lx\n", - io, (u64)mem, command); + debug("PCI Config: I/O=0x%lx, Memory=0x%llx, Command=0x%lx\n", io, + (u64)mem, command); - pci_hose_write_config_dword (hose, dev, PCI_COMMAND, 0); + pci_hose_write_config_dword(hose, dev, PCI_COMMAND, 0); for (bar = PCI_BASE_ADDRESS_0; bar <= PCI_BASE_ADDRESS_5; bar += 4) { - pci_hose_write_config_dword (hose, dev, bar, 0xffffffff); - pci_hose_read_config_dword (hose, dev, bar, &bar_response); + pci_hose_write_config_dword(hose, dev, bar, 0xffffffff); + pci_hose_read_config_dword(hose, dev, bar, &bar_response); if (!bar_response) continue; @@ -418,8 +423,10 @@ int pci_hose_config_device(struct pci_controller *hose, PCI_BASE_ADDRESS_MEM_TYPE_64) { u32 bar_response_upper; u64 bar64; - pci_hose_write_config_dword(hose, dev, bar+4, 0xffffffff); - pci_hose_read_config_dword(hose, dev, bar+4, &bar_response_upper); + pci_hose_write_config_dword(hose, dev, bar + 4, + 0xffffffff); + pci_hose_read_config_dword(hose, dev, bar + 4, + &bar_response_upper); bar64 = ((u64)bar_response_upper << 32) | bar_response; @@ -442,27 +449,28 @@ int pci_hose_config_device(struct pci_controller *hose, if (found_mem64) { bar += 4; #ifdef CONFIG_SYS_PCI_64BIT - pci_hose_write_config_dword(hose, dev, bar, (u32)(bar_value>>32)); + pci_hose_write_config_dword(hose, dev, bar, + (u32)(bar_value >> 32)); #else - pci_hose_write_config_dword (hose, dev, bar, 0x00000000); + pci_hose_write_config_dword(hose, dev, bar, 0x00000000); #endif } } /* Configure Cache Line Size Register */ - pci_hose_write_config_byte (hose, dev, PCI_CACHE_LINE_SIZE, 0x08); + pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08); /* Configure Latency Timer */ - pci_hose_write_config_byte (hose, dev, PCI_LATENCY_TIMER, 0x80); + pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80); /* Disable interrupt line, if device says it wants to use interrupts */ - pci_hose_read_config_byte (hose, dev, PCI_INTERRUPT_PIN, &pin); + pci_hose_read_config_byte(hose, dev, PCI_INTERRUPT_PIN, &pin); if (pin != 0) { - pci_hose_write_config_byte (hose, dev, PCI_INTERRUPT_LINE, 0xff); + pci_hose_write_config_byte(hose, dev, PCI_INTERRUPT_LINE, 0xff); } - pci_hose_read_config_dword (hose, dev, PCI_COMMAND, &old_command); - pci_hose_write_config_dword (hose, dev, PCI_COMMAND, + pci_hose_read_config_dword(hose, dev, PCI_COMMAND, &old_command); + pci_hose_write_config_dword(hose, dev, PCI_COMMAND, (old_command & 0xffff0000) | command); return 0; @@ -500,7 +508,8 @@ void pci_cfgfunc_config_device(struct pci_controller *hose, pci_dev_t dev, struct pci_config_table *entry) { - pci_hose_config_device(hose, dev, entry->priv[0], entry->priv[1], entry->priv[2]); + pci_hose_config_device(hose, dev, entry->priv[0], entry->priv[1], + entry->priv[2]); } void pci_cfgfunc_do_nothing(struct pci_controller *hose, @@ -509,10 +518,7 @@ void pci_cfgfunc_do_nothing(struct pci_controller *hose, } /* - * - */ - -/* HJF: Changed this to return int. I think this is required + * HJF: Changed this to return int. I think this is required * to get the correct result when scanning bridges */ extern int pciauto_config_device(struct pci_controller *hose, pci_dev_t dev); @@ -618,10 +624,12 @@ int pci_print_dev(struct pci_controller *hose, pci_dev_t dev) int pci_hose_scan_bus(struct pci_controller *hose, int bus) { - unsigned int sub_bus, found_multi=0; + unsigned int sub_bus, found_multi = 0; unsigned short vendor, device, class; unsigned char header_type; +#ifndef CONFIG_PCI_PNP struct pci_config_table *cfg; +#endif pci_dev_t dev; #ifdef CONFIG_PCI_SCAN_SHOW static int indent = 0; @@ -630,8 +638,9 @@ int pci_hose_scan_bus(struct pci_controller *hose, int bus) sub_bus = bus; for (dev = PCI_BDF(bus,0,0); - dev < PCI_BDF(bus,PCI_MAX_PCI_DEVICES-1,PCI_MAX_PCI_FUNCTIONS-1); - dev += PCI_BDF(0,0,1)) { + dev < PCI_BDF(bus, PCI_MAX_PCI_DEVICES - 1, + PCI_MAX_PCI_FUNCTIONS - 1); + dev += PCI_BDF(0, 0, 1)) { if (pci_skip_dev(hose, dev)) continue; @@ -649,8 +658,8 @@ int pci_hose_scan_bus(struct pci_controller *hose, int bus) if (!PCI_FUNC(dev)) found_multi = header_type & 0x80; - debug ("PCI Scan: Found Bus %d, Device %d, Function %d\n", - PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev) ); + debug("PCI Scan: Found Bus %d, Device %d, Function %d\n", + PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev)); pci_hose_read_config_word(hose, dev, PCI_DEVICE_ID, &device); pci_hose_read_config_word(hose, dev, PCI_CLASS_DEVICE, &class); @@ -668,18 +677,16 @@ int pci_hose_scan_bus(struct pci_controller *hose, int bus) } #endif +#ifdef CONFIG_PCI_PNP + sub_bus = max(pciauto_config_device(hose, dev), sub_bus); +#else cfg = pci_find_config(hose, class, vendor, device, PCI_BUS(dev), PCI_DEV(dev), PCI_FUNC(dev)); if (cfg) { cfg->config_device(hose, dev, cfg); sub_bus = max(sub_bus, hose->current_busno); -#ifdef CONFIG_PCI_PNP - } else { - int n = pciauto_config_device(hose, dev); - - sub_bus = max(sub_bus, n); -#endif } +#endif #ifdef CONFIG_PCI_SCAN_SHOW indent--; @@ -711,10 +718,11 @@ int pci_hose_scan(struct pci_controller *hose) } #endif /* CONFIG_PCI_BOOTDELAY */ - /* Start scan at current_busno. + /* + * Start scan at current_busno. * PCIe will start scan at first_busno+1. */ - /* For legacy support, ensure current>=first */ + /* For legacy support, ensure current >= first */ if (hose->first_busno > hose->current_busno) hose->current_busno = hose->first_busno; #ifdef CONFIG_PCI_PNP