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x86: Define macros for pci configuration space access

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Move PCI_REG_ADDR and PCI_REG_DATA from arch/x86/lib/pci_type1.c to
arch/x86/include/asm/pci.h, also define PCI_CFG_EN so that these
macros can be used for pci configuration space access.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2015-02-02 22:35:25 +08:00 committed by Simon Glass
parent faa8323299
commit 3c8ae536ec
2 changed files with 13 additions and 7 deletions
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13
arch/x86/include/asm/pci.h
View file

@ -1,4 +1,3 @@
/*
* (C) Copyright 2002
* Daniel Engström, Omicron Ceti AB, daniel@omicron.se
@ -9,6 +8,14 @@
#ifndef _PCI_I386_H_
#define _PCI_I386_H_
/* bus mapping constants (used for PCI core initialization) */
#define PCI_REG_ADDR 0xcf8
#define PCI_REG_DATA 0xcfc
#define PCI_CFG_EN 0x80000000
#ifndef __ASSEMBLY__
#define DEFINE_PCI_DEVICE_TABLE(_table) \
const struct pci_device_id _table[]
@ -49,4 +56,6 @@ void pci_write_config8(pci_dev_t dev, unsigned where, unsigned value);
void pci_write_config16(pci_dev_t dev, unsigned where, unsigned value);
void pci_write_config32(pci_dev_t dev, unsigned where, unsigned value);
#endif
#endif /* __ASSEMBLY__ */
#endif /* _PCI_I386_H_ */

7
arch/x86/lib/pci_type1.c
View file

@ -12,6 +12,7 @@
#include <common.h>
#include <asm/io.h>
#include <pci.h>
#include <asm/pci.h>
#define cfg_read(val, addr, op) (*val = op((int)(addr)))
#define cfg_write(val, addr, op) op((val), (int)(addr))
@ -21,7 +22,7 @@ static int \
type1_##rw##_config_##size(struct pci_controller *hose, \
pci_dev_t dev, int offset, type val) \
{ \
outl(dev | (offset & 0xfc) | 0x80000000, (int)hose->cfg_addr); \
outl(dev | (offset & 0xfc) | PCI_CFG_EN, (int)hose->cfg_addr); \
cfg_##rw(val, hose->cfg_data + (offset & mask), op); \
return 0; \
}
@ -34,10 +35,6 @@ TYPE1_PCI_OP(write, byte, u8, outb, 3)
TYPE1_PCI_OP(write, word, u16, outw, 2)
TYPE1_PCI_OP(write, dword, u32, outl, 0)
/* bus mapping constants (used for PCI core initialization) */
#define PCI_REG_ADDR 0x00000cf8
#define PCI_REG_DATA 0x00000cfc
void pci_setup_type1(struct pci_controller *hose)
{
pci_set_ops(hose,