mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
98f705c9ce
There was for long time no activity in the 4xx area. We need to go further and convert to Kconfig, but it turned out, nobody is interested anymore in 4xx, so remove it. Signed-off-by: Heiko Schocher <hs@denx.de>
73 lines
2.4 KiB
C
73 lines
2.4 KiB
C
/*
|
|
* Support for indirect PCI bridges.
|
|
*
|
|
* Copyright (C) 1998 Gabriel Paubert.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
|
|
#if !defined(__I386__)
|
|
|
|
#include <asm/processor.h>
|
|
#include <asm/io.h>
|
|
#include <pci.h>
|
|
|
|
#define cfg_read(val, addr, type, op) *val = op((type)(addr))
|
|
#define cfg_write(val, addr, type, op) op((type *)(addr), (val))
|
|
|
|
#if defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
|
|
#define INDIRECT_PCI_OP(rw, size, type, op, mask) \
|
|
static int \
|
|
indirect_##rw##_config_##size(struct pci_controller *hose, \
|
|
pci_dev_t dev, int offset, type val) \
|
|
{ \
|
|
u32 b, d,f; \
|
|
b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \
|
|
b = b - hose->first_busno; \
|
|
dev = PCI_BDF(b, d, f); \
|
|
*(hose->cfg_addr) = dev | (offset & 0xfc) | ((offset & 0xf00) << 16) | 0x80000000; \
|
|
sync(); \
|
|
cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \
|
|
return 0; \
|
|
}
|
|
#else
|
|
#define INDIRECT_PCI_OP(rw, size, type, op, mask) \
|
|
static int \
|
|
indirect_##rw##_config_##size(struct pci_controller *hose, \
|
|
pci_dev_t dev, int offset, type val) \
|
|
{ \
|
|
u32 b, d,f; \
|
|
b = PCI_BUS(dev); d = PCI_DEV(dev); f = PCI_FUNC(dev); \
|
|
b = b - hose->first_busno; \
|
|
dev = PCI_BDF(b, d, f); \
|
|
out_le32(hose->cfg_addr, dev | (offset & 0xfc) | 0x80000000); \
|
|
cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \
|
|
return 0; \
|
|
}
|
|
#endif
|
|
|
|
INDIRECT_PCI_OP(read, byte, u8 *, in_8, 3)
|
|
INDIRECT_PCI_OP(read, word, u16 *, in_le16, 2)
|
|
INDIRECT_PCI_OP(read, dword, u32 *, in_le32, 0)
|
|
INDIRECT_PCI_OP(write, byte, u8, out_8, 3)
|
|
INDIRECT_PCI_OP(write, word, u16, out_le16, 2)
|
|
INDIRECT_PCI_OP(write, dword, u32, out_le32, 0)
|
|
|
|
void pci_setup_indirect(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data)
|
|
{
|
|
pci_set_ops(hose,
|
|
indirect_read_config_byte,
|
|
indirect_read_config_word,
|
|
indirect_read_config_dword,
|
|
indirect_write_config_byte,
|
|
indirect_write_config_word,
|
|
indirect_write_config_dword);
|
|
|
|
hose->cfg_addr = (unsigned int *) cfg_addr;
|
|
hose->cfg_data = (unsigned char *) cfg_data;
|
|
}
|
|
|
|
#endif /* !__I386__ */
|