This patch completely removes CONFIG_PCI_ENUM_ONLY from the PCI code as it is not configured for any board (any more). With this removal, some PCI related files get cleaned up a bit.

Additional, dm_pciauto_setup_device() is now static, as it's not referenced from any code outside of this C file.

Signed-off-by: Stefan Roese sr@denx.de Cc: Simon Glass sjg@chromium.org Cc: Bin Meng bmeng.cn@gmail.com --- README | 7 --- drivers/pci/pci_auto.c | 104 ++++++++++++++--------------------- drivers/pci/pci_auto_old.c | 18 ------ scripts/config_whitelist.txt | 1 - 4 files changed, 41 insertions(+), 89 deletions(-)

diff --git a/README b/README index 7b73a1c97321..edadfe98a5f2 100644 --- a/README +++ b/README @@ -2777,13 +2777,6 @@ Low Level (hardware related) configuration options: CONFIG_SYS_OR3_PRELIM, CONFIG_SYS_BR3_PRELIM: Memory Controller Definitions: BR2/3 and OR2/3 (SDRAM)

-- CONFIG_PCI_ENUM_ONLY - Only scan through and get the devices on the buses. - Don't do any setup work, presumably because someone or - something has already done it, and we don't need to do it - a second time. Useful for platforms that are pre-booted - by coreboot or similar. - - CONFIG_PCI_INDIRECT_BRIDGE: Enable support for indirect PCI bridges.

diff --git a/drivers/pci/pci_auto.c b/drivers/pci/pci_auto.c index ea202b0e0959..f6130420daa7 100644 --- a/drivers/pci/pci_auto.c +++ b/drivers/pci/pci_auto.c @@ -18,10 +18,10 @@ #define CONFIG_SYS_PCI_CACHE_LINE_SIZE 8 #endif

-void dm_pciauto_setup_device(struct udevice *dev, int bars_num, - struct pci_region *mem, - struct pci_region *prefetch, struct pci_region *io, - bool enum_only) +static void dm_pciauto_setup_device(struct udevice *dev, int bars_num, + struct pci_region *mem, + struct pci_region *prefetch, + struct pci_region *io) { u32 bar_response; pci_size_t bar_size; @@ -43,8 +43,7 @@ void dm_pciauto_setup_device(struct udevice *dev, int bars_num, int ret = 0;

/* Tickle the BAR and get the response */ - if (!enum_only) - dm_pci_write_config32(dev, bar, 0xffffffff); + dm_pci_write_config32(dev, bar, 0xffffffff); dm_pci_read_config32(dev, bar, &bar_response);

/* If BAR is not implemented (or invalid) go to the next BAR */ @@ -58,8 +57,7 @@ void dm_pciauto_setup_device(struct udevice *dev, int bars_num, bar_size = bar_response & PCI_BASE_ADDRESS_IO_MASK; bar_size &= ~(bar_size - 1);

- if (!enum_only) - bar_res = io; + bar_res = io;

debug("PCI Autoconfig: BAR %d, I/O, size=0x%llx, ", bar_nr, (unsigned long long)bar_size); @@ -69,10 +67,7 @@ void dm_pciauto_setup_device(struct udevice *dev, int bars_num, u32 bar_response_upper; u64 bar64;

- if (!enum_only) { - dm_pci_write_config32(dev, bar + 4, - 0xffffffff); - } + dm_pci_write_config32(dev, bar + 4, 0xffffffff); dm_pci_read_config32(dev, bar + 4, &bar_response_upper);

@@ -81,33 +76,29 @@ void dm_pciauto_setup_device(struct udevice *dev, int bars_num,

bar_size = ~(bar64 & PCI_BASE_ADDRESS_MEM_MASK) + 1; - if (!enum_only) - found_mem64 = 1; + found_mem64 = 1; } else { bar_size = (u32)(~(bar_response & PCI_BASE_ADDRESS_MEM_MASK) + 1); } - if (!enum_only) { - if (prefetch && (bar_response & - PCI_BASE_ADDRESS_MEM_PREFETCH)) { - bar_res = prefetch; - } else { - bar_res = mem; - } - } + + if (prefetch && + (bar_response & PCI_BASE_ADDRESS_MEM_PREFETCH)) + bar_res = prefetch; + else + bar_res = mem;

debug("PCI Autoconfig: BAR %d, %s, size=0x%llx, ", bar_nr, bar_res == prefetch ? "Prf" : "Mem", (unsigned long long)bar_size); }

- if (!enum_only) { - ret = pciauto_region_allocate(bar_res, bar_size, - &bar_value, found_mem64); - if (ret) - printf("PCI: Failed autoconfig bar %x\n", bar); - } - if (!enum_only && !ret) { + ret = pciauto_region_allocate(bar_res, bar_size, + &bar_value, found_mem64); + if (ret) + printf("PCI: Failed autoconfig bar %x\n", bar); + + if (!ret) { /* Write it out and update our limit */ dm_pci_write_config32(dev, bar, (u32)bar_value);

@@ -135,28 +126,24 @@ void dm_pciauto_setup_device(struct udevice *dev, int bars_num, bar_nr++; }

- if (!enum_only) { - /* Configure the expansion ROM address */ - dm_pci_read_config8(dev, PCI_HEADER_TYPE, &header_type); - header_type &= 0x7f; - if (header_type != PCI_HEADER_TYPE_CARDBUS) { - rom_addr = (header_type == PCI_HEADER_TYPE_NORMAL) ? - PCI_ROM_ADDRESS : PCI_ROM_ADDRESS1; - dm_pci_write_config32(dev, rom_addr, 0xfffffffe); - dm_pci_read_config32(dev, rom_addr, &bar_response); - if (bar_response) { - bar_size = -(bar_response & ~1); - debug("PCI Autoconfig: ROM, size=%#x, ", - (unsigned int)bar_size); - if (pciauto_region_allocate(mem, bar_size, - &bar_value, - false) == 0) { - dm_pci_write_config32(dev, rom_addr, - bar_value); - } - cmdstat |= PCI_COMMAND_MEMORY; - debug("\n"); + /* Configure the expansion ROM address */ + dm_pci_read_config8(dev, PCI_HEADER_TYPE, &header_type); + header_type &= 0x7f; + if (header_type != PCI_HEADER_TYPE_CARDBUS) { + rom_addr = (header_type == PCI_HEADER_TYPE_NORMAL) ? + PCI_ROM_ADDRESS : PCI_ROM_ADDRESS1; + dm_pci_write_config32(dev, rom_addr, 0xfffffffe); + dm_pci_read_config32(dev, rom_addr, &bar_response); + if (bar_response) { + bar_size = -(bar_response & ~1); + debug("PCI Autoconfig: ROM, size=%#x, ", + (unsigned int)bar_size); + if (pciauto_region_allocate(mem, bar_size, &bar_value, + false) == 0) { + dm_pci_write_config32(dev, rom_addr, bar_value); } + cmdstat |= PCI_COMMAND_MEMORY; + debug("\n"); } }

@@ -319,15 +306,10 @@ int dm_pciauto_config_device(struct udevice *dev) struct pci_region *pci_io; 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 - pci_mem = ctlr_hose->pci_mem; pci_prefetch = ctlr_hose->pci_prefetch; pci_io = ctlr_hose->pci_io; @@ -339,8 +321,7 @@ int dm_pciauto_config_device(struct udevice *dev) debug("PCI Autoconfig: Found P2P bridge, device %d\n", PCI_DEV(dm_pci_get_bdf(dev)));

- dm_pciauto_setup_device(dev, 2, pci_mem, pci_prefetch, pci_io, - enum_only); + dm_pciauto_setup_device(dev, 2, pci_mem, pci_prefetch, pci_io);

n = dm_pci_hose_probe_bus(dev); if (n < 0) @@ -353,8 +334,7 @@ int dm_pciauto_config_device(struct udevice *dev) * just do a minimal setup of the bridge, * let the OS take care of the rest */ - dm_pciauto_setup_device(dev, 0, pci_mem, pci_prefetch, pci_io, - enum_only); + dm_pciauto_setup_device(dev, 0, pci_mem, pci_prefetch, pci_io);

debug("PCI Autoconfig: Found P2CardBus bridge, device %d\n", PCI_DEV(dm_pci_get_bdf(dev))); @@ -378,8 +358,7 @@ int dm_pciauto_config_device(struct udevice *dev) */ debug("PCI Autoconfig: Broken bridge found, only minimal config\n"); dm_pciauto_setup_device(dev, 0, hose->pci_mem, - hose->pci_prefetch, hose->pci_io, - enum_only); + hose->pci_prefetch, hose->pci_io); break; #endif

@@ -388,8 +367,7 @@ int dm_pciauto_config_device(struct udevice *dev) /* fall through */

default: - dm_pciauto_setup_device(dev, 6, pci_mem, pci_prefetch, pci_io, - enum_only); + dm_pciauto_setup_device(dev, 6, pci_mem, pci_prefetch, pci_io); break; }

diff --git a/drivers/pci/pci_auto_old.c b/drivers/pci/pci_auto_old.c index 8b67cfa92b41..c56ff53c4f9f 100644 --- a/drivers/pci/pci_auto_old.c +++ b/drivers/pci/pci_auto_old.c @@ -36,13 +36,11 @@ void pciauto_setup_device(struct pci_controller *hose, pci_size_t bar_size; u16 cmdstat = 0; int bar, bar_nr = 0; -#ifndef CONFIG_PCI_ENUM_ONLY u8 header_type; int rom_addr; pci_addr_t bar_value; struct pci_region *bar_res; int found_mem64 = 0; -#endif u16 class;

pci_hose_read_config_word(hose, dev, PCI_COMMAND, &cmdstat); @@ -51,26 +49,20 @@ void pciauto_setup_device(struct pci_controller *hose, for (bar = PCI_BASE_ADDRESS_0; bar < PCI_BASE_ADDRESS_0 + (bars_num * 4); bar += 4) { /* Tickle the BAR and get the response */ -#ifndef CONFIG_PCI_ENUM_ONLY pci_hose_write_config_dword(hose, dev, bar, 0xffffffff); -#endif pci_hose_read_config_dword(hose, dev, bar, &bar_response);

/* If BAR is not implemented go to the next BAR */ if (!bar_response) continue;

-#ifndef CONFIG_PCI_ENUM_ONLY found_mem64 = 0; -#endif

/* Check the BAR type and set our address mask */ if (bar_response & PCI_BASE_ADDRESS_SPACE) { bar_size = ((~(bar_response & PCI_BASE_ADDRESS_IO_MASK)) & 0xffff) + 1; -#ifndef CONFIG_PCI_ENUM_ONLY bar_res = io; -#endif

debug("PCI Autoconfig: BAR %d, I/O, size=0x%llx, ", bar_nr, (unsigned long long)bar_size); @@ -80,23 +72,18 @@ void pciauto_setup_device(struct pci_controller *hose, u32 bar_response_upper; u64 bar64;

-#ifndef CONFIG_PCI_ENUM_ONLY pci_hose_write_config_dword(hose, dev, bar + 4, 0xffffffff); -#endif pci_hose_read_config_dword(hose, dev, bar + 4, &bar_response_upper);

bar64 = ((u64)bar_response_upper << 32) | bar_response;

bar_size = ~(bar64 & PCI_BASE_ADDRESS_MEM_MASK) + 1; -#ifndef CONFIG_PCI_ENUM_ONLY found_mem64 = 1; -#endif } else { bar_size = (u32)(~(bar_response & PCI_BASE_ADDRESS_MEM_MASK) + 1); } -#ifndef CONFIG_PCI_ENUM_ONLY if (prefetch && (bar_response & PCI_BASE_ADDRESS_MEM_PREFETCH)) bar_res = prefetch; else @@ -105,10 +92,8 @@ void pciauto_setup_device(struct pci_controller *hose, debug("PCI Autoconfig: BAR %d, %s, size=0x%llx, ", bar_nr, bar_res == prefetch ? "Prf" : "Mem", (unsigned long long)bar_size); -#endif }

-#ifndef CONFIG_PCI_ENUM_ONLY if (pciauto_region_allocate(bar_res, bar_size, &bar_value, found_mem64) == 0) { /* Write it out and update our limit */ @@ -129,7 +114,6 @@ void pciauto_setup_device(struct pci_controller *hose, }

} -#endif cmdstat |= (bar_response & PCI_BASE_ADDRESS_SPACE) ? PCI_COMMAND_IO : PCI_COMMAND_MEMORY;

@@ -138,7 +122,6 @@ void pciauto_setup_device(struct pci_controller *hose, bar_nr++; }

-#ifndef CONFIG_PCI_ENUM_ONLY /* Configure the expansion ROM address */ pci_hose_read_config_byte(hose, dev, PCI_HEADER_TYPE, &header_type); header_type &= 0x7f; @@ -160,7 +143,6 @@ void pciauto_setup_device(struct pci_controller *hose, debug("\n"); } } -#endif

/* PCI_COMMAND_IO must be set for VGA device */ pci_hose_read_config_word(hose, dev, PCI_CLASS_DEVICE, &class); diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt index 55acc38d0679..518d8d75e799 100644 --- a/scripts/config_whitelist.txt +++ b/scripts/config_whitelist.txt @@ -1222,7 +1222,6 @@ CONFIG_PCI_CLK_FREQ CONFIG_PCI_CONFIG_HOST_BRIDGE CONFIG_PCI_EHCI_DEVICE CONFIG_PCI_EHCI_DEVNO -CONFIG_PCI_ENUM_ONLY CONFIG_PCI_FIXUP_DEV CONFIG_PCI_GT64120 CONFIG_PCI_INDIRECT_BRIDGE