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device/pci_ops: Reuse romstage PCI config for ramstage

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By changing the signatures we do not need to define
PCI config accessors separately for ramstage.

Change-Id: I9364cb34fe8127972c772516a0a0b1d281c5ed00
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31685
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This commit is contained in:
Kyösti Mälkki
2019-03-11 20:34:26 +02:00
parent 74aa99a543
commit 34cf5619f9
5 changed files with 54 additions and 120 deletions
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64
src/arch/x86/pci_ops_conf1.c
View File

@@ -14,65 +14,17 @@
#include <arch/io.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <arch/pci_io_cfg.h>
/*
* Functions for accessing PCI configuration space with type 1 accesses
*/
#if !CONFIG(PCI_IO_CFG_EXT)
#define CONF_CMD(dev, reg) (0x80000000 | ((dev)->bus->secondary << 16) | \
((dev)->path.pci.devfn << 8) | (reg & ~3))
#else
#define CONF_CMD(dev, reg) (0x80000000 | ((dev)->bus->secondary << 16) | \
((dev)->path.pci.devfn << 8) | ((reg & 0xff) & ~3) |\
((reg & 0xf00)<<16))
#endif
static uint8_t pci_conf1_read_config8(const struct device *dev, uint16_t reg)
{
outl(CONF_CMD(dev, reg), 0xCF8);
return inb(0xCFC + (reg & 3));
}
static uint16_t pci_conf1_read_config16(const struct device *dev, uint16_t reg)
{
outl(CONF_CMD(dev, reg), 0xCF8);
return inw(0xCFC + (reg & 2));
}
static uint32_t pci_conf1_read_config32(const struct device *dev, uint16_t reg)
{
outl(CONF_CMD(dev, reg), 0xCF8);
return inl(0xCFC);
}
static void pci_conf1_write_config8(const struct device *dev, uint16_t reg,
uint8_t value)
{
outl(CONF_CMD(dev, reg), 0xCF8);
outb(value, 0xCFC + (reg & 3));
}
static void pci_conf1_write_config16(const struct device *dev, uint16_t reg,
uint16_t value)
{
outl(CONF_CMD(dev, reg), 0xCF8);
outw(value, 0xCFC + (reg & 2));
}
static void pci_conf1_write_config32(const struct device *dev, uint16_t reg,
uint32_t value)
{
outl(CONF_CMD(dev, reg), 0xCF8);
outl(value, 0xCFC);
}
#undef CONF_CMD
const struct pci_bus_operations pci_cf8_conf1 = {
.read8 = pci_conf1_read_config8,
.read16 = pci_conf1_read_config16,
.read32 = pci_conf1_read_config32,
.write8 = pci_conf1_write_config8,
.write16 = pci_conf1_write_config16,
.write32 = pci_conf1_write_config32,
.read8 = pci_io_read_config8,
.read16 = pci_io_read_config16,
.read32 = pci_io_read_config32,
.write8 = pci_io_write_config8,
.write16 = pci_io_write_config16,
.write32 = pci_io_write_config32,
};