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https://github.com/brain-hackers/u-boot-brain
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70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
/*
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* (C) Copyright 2002
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* Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* Support for type PCI configuration cycles.
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* based on pci_indirect.c
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <pci.h>
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#define cfg_read(val, addr, op) (*val = op((int)(addr)))
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#define cfg_write(val, addr, op) op((val), (int)(addr))
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#define TYPE1_PCI_OP(rw, size, type, op, mask) \
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static int \
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type1_##rw##_config_##size(struct pci_controller *hose, \
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pci_dev_t dev, int offset, type val) \
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{ \
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outl(dev | (offset & 0xfc) | 0x80000000, (int)hose->cfg_addr); \
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cfg_##rw(val, hose->cfg_data + (offset & mask), op); \
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return 0; \
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}
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TYPE1_PCI_OP(read, byte, u8 *, inb, 3)
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TYPE1_PCI_OP(read, word, u16 *, inw, 2)
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TYPE1_PCI_OP(read, dword, u32 *, inl, 0)
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TYPE1_PCI_OP(write, byte, u8, outb, 3)
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TYPE1_PCI_OP(write, word, u16, outw, 2)
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TYPE1_PCI_OP(write, dword, u32, outl, 0)
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/* bus mapping constants (used for PCI core initialization) */
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#define PCI_REG_ADDR 0x00000cf8
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#define PCI_REG_DATA 0x00000cfc
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void pci_setup_type1(struct pci_controller *hose)
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{
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pci_set_ops(hose,
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type1_read_config_byte,
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type1_read_config_word,
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type1_read_config_dword,
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type1_write_config_byte,
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type1_write_config_word,
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type1_write_config_dword);
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hose->cfg_addr = (unsigned int *)PCI_REG_ADDR;
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hose->cfg_data = (unsigned char *)PCI_REG_DATA;
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}
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