mirror of
https://github.com/fail0verflow/switch-coreboot.git
synced 2025-05-04 01:39:18 -04:00
71ccb36afc
- Everything in include/cpu/generic/x86/arch/* goes into include/arch/x86 now. - include/cpu/generic/x86/div64.h moves into include/arch/x86, too. - The former include/cpu/generic/x86/arch/elf.h moved to include/arch/x86/archelf.h, as elf.h already exists in include/ and we must prevent a name clash. Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@314 f3766cd6-281f-0410-b1cd-43a5c92072e9
69 lines
2 KiB
C
69 lines
2 KiB
C
#include <console.h>
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#include <device/device.h>
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#include <pciconf.h>
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#include <device/pci.h>
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#include <device/pci_ids.h>
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#include <device/pci_ops.h>
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#include <types.h>
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#include <io.h>
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/*
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* Functions for accessing PCI configuration space with type 1 accesses
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*/
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/* this shit really should come with comments ...this is annoying.
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#if PCI_IO_CFG_EXT == 0
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#define CONFIG_CMD(bus,devfn, where) (0x80000000 | (bus << 16) | (devfn << 8) | (where & ~3))
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#else
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#define CONFIG_CMD(bus,devfn, where) (0x80000000 | (bus << 16) | (devfn << 8) | ((where & 0xff) & ~3) | ((where & 0xf00)<<16) )
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#endif
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*/
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#define CONFIG_CMD(bus,devfn, where) (0x80000000 | (bus << 16) | (devfn << 8) | (where & ~3))
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static u8 pci_conf1_read_config8(struct bus *pbus, int bus, int devfn, int where)
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{
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outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
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return inb(0xCFC + (where & 3));
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}
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static u16 pci_conf1_read_config16(struct bus *pbus, int bus, int devfn, int where)
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{
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outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
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return inw(0xCFC + (where & 2));
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}
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static u32 pci_conf1_read_config32(struct bus *pbus, int bus, int devfn, int where)
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{
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outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
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return inl(0xCFC);
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}
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static void pci_conf1_write_config8(struct bus *pbus, int bus, int devfn, int where, u8 value)
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{
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outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
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outb(value, 0xCFC + (where & 3));
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}
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static void pci_conf1_write_config16(struct bus *pbus, int bus, int devfn, int where, u16 value)
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{
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outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
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outw(value, 0xCFC + (where & 2));
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}
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static void pci_conf1_write_config32(struct bus *pbus, int bus, int devfn, int where, u32 value)
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{
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outl(CONFIG_CMD(bus, devfn, where), 0xCF8);
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outl(value, 0xCFC);
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}
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#undef CONFIG_CMD
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struct pci_bus_operations pci_cf8_conf1 =
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{
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.read8 = pci_conf1_read_config8,
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.read16 = pci_conf1_read_config16,
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.read32 = pci_conf1_read_config32,
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.write8 = pci_conf1_write_config8,
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.write16 = pci_conf1_write_config16,
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.write32 = pci_conf1_write_config32,
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};
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