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- Changes to the pci config routines moving them closer to the non romcc API

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The goal is to have the same interface with or without romcc.


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@868 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Eric Biederman
2003-06-12 17:55:54 +00:00
parent 05f26fcb57
commit 540ae01cd3
7 changed files with 123 additions and 106 deletions
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71
src/arch/i386/include/arch/romcc_io.h
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@@ -53,9 +53,15 @@ static void wrmsr(unsigned long index, msr_t msr)
(((FN) & 0x07) << 8) | \
((WHERE) & 0xFF))
#define PCI_DEV(BUS, DEV, FN) ( \
(((BUS) & 0xFF) << 16) | \
(((DEV) & 0x1f) << 11) | \
(((FN) & 0x7) << 8))
#define PCI_ID(VENDOR_ID, DEVICE_ID) \
((((DEVICE_ID) & 0xFFFF) << 16) | ((VENDOR_ID) & 0xFFFF))
#if 0
static unsigned char pci_read_config8(unsigned addr)
{
outl(0x80000000 | (addr & ~3), 0xCF8);
@@ -104,3 +110,68 @@ static unsigned pci_locate_device(unsigned pci_id, unsigned addr)
}
return ~0U;
}
#else
typedef unsigned device_t;
static unsigned char pci_read_config8(device_t dev, unsigned where)
{
unsigned addr;
addr = dev | where;
outl(0x80000000 | (addr & ~3), 0xCF8);
return inb(0xCFC + (addr & 3));
}
static unsigned short pci_read_config16(device_t dev, unsigned where)
{
unsigned addr;
addr = dev | where;
outl(0x80000000 | (addr & ~3), 0xCF8);
return inw(0xCFC + (addr & 2));
}
static unsigned int pci_read_config32(device_t dev, unsigned where)
{
unsigned addr;
addr = dev | where;
outl(0x80000000 | (addr & ~3), 0xCF8);
return inl(0xCFC);
}
static void pci_write_config8(device_t dev, unsigned where, unsigned char value)
{
unsigned addr;
addr = dev | where;
outl(0x80000000 | (addr & ~3), 0xCF8);
outb(value, 0xCFC + (addr & 3));
}
static void pci_write_config16(device_t dev, unsigned where, unsigned short value)
{
unsigned addr;
addr = dev | where;
outl(0x80000000 | (addr & ~3), 0xCF8);
outw(value, 0xCFC + (addr & 2));
}
static void pci_write_config32(device_t dev, unsigned where, unsigned int value)
{
unsigned addr;
addr = dev | where;
outl(0x80000000 | (addr & ~3), 0xCF8);
outl(value, 0xCFC);
}
#define PCI_DEV_INVALID (0xffffffffU)
static device_t pci_locate_device(unsigned pci_id, device_t dev)
{
for(; dev <= PCI_DEV(255, 31, 7); dev += PCI_DEV(0,0,1)) {
unsigned int id;
id = pci_read_config32(dev, 0);
if (id == pci_id) {
return dev;
}
}
return PCI_DEV_INVALID;
}
#endif