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author | wdenk <wdenk> | 2002-11-18 00:14:45 +0000 |
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committer | wdenk <wdenk> | 2002-11-18 00:14:45 +0000 |
commit | 2262cfeef91458b01a1bfe3812ccbbfdf8b82807 (patch) | |
tree | 3657d48c8ce9089fc96682848859d035a1e8f115 /lib_i386/pci_type1.c | |
parent | 1d0350ed0b1b0f63e3fb5db6b19397b84a2ea1c7 (diff) | |
download | u-boot-imx-2262cfeef91458b01a1bfe3812ccbbfdf8b82807.zip u-boot-imx-2262cfeef91458b01a1bfe3812ccbbfdf8b82807.tar.gz u-boot-imx-2262cfeef91458b01a1bfe3812ccbbfdf8b82807.tar.bz2 |
* Patch by Daniel Engström, 13 Nov 2002:
Add support for i386 architecture and AMD SC520 board
* Patch by Pierre Aubert, 12 Nov 2002:
Add support for DOS filesystem and booting from DOS floppy disk
Diffstat (limited to 'lib_i386/pci_type1.c')
-rw-r--r-- | lib_i386/pci_type1.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/lib_i386/pci_type1.c b/lib_i386/pci_type1.c new file mode 100644 index 0000000..e5577e8 --- /dev/null +++ b/lib_i386/pci_type1.c @@ -0,0 +1,57 @@ +/* + * Support for type PCI configuration cycles. + * based on pci_indirect.c + * + * Copyright (C) 2002 Daniel Engström, Omicron Ceti AB, daniel@omicron.se. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <common.h> + +#ifdef CONFIG_PCI + +#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((val), (type *)(addr)) + +#define TYPE1_PCI_OP(rw, size, type, op, mask) \ +static int \ +type1_##rw##_config_##size(struct pci_controller *hose, \ + pci_dev_t dev, int offset, type val) \ +{ \ + outl(dev | (offset & 0xfc) | 0x80000000, hose->cfg_addr); \ + cfg_##rw(val, hose->cfg_data + (offset & mask), type, op); \ + return 0; \ +} + + +TYPE1_PCI_OP(read, byte, u8 *, inb, 3) +TYPE1_PCI_OP(read, word, u16 *, inw, 2) +TYPE1_PCI_OP(read, dword, u32 *, inl, 0) + +TYPE1_PCI_OP(write, byte, u8, outb, 3) +TYPE1_PCI_OP(write, word, u16, outw, 2) +TYPE1_PCI_OP(write, dword, u32, outl, 0) + +void pci_setup_type1(struct pci_controller* hose, u32 cfg_addr, u32 cfg_data) +{ + pci_set_ops(hose, + type1_read_config_byte, + type1_read_config_word, + type1_read_config_dword, + type1_write_config_byte, + type1_write_config_word, + type1_write_config_dword); + + hose->cfg_addr = (unsigned int *) cfg_addr; + hose->cfg_data = (unsigned char *) cfg_data; +} + +#endif |