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06e2735eb8
It is necessary for some pci device driver. Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
/*
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* SH4 PCI Controller (PCIC) for U-Boot.
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* (C) Dustin McIntire (dustin@sensoria.com)
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* (C) 2007,2008 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
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* (C) 2008 Yusuke Goda <goda.yusuke@renesas.com>
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*
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* u-boot/cpu/sh4/pci-sh4.c
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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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#include <common.h>
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#include <asm/processor.h>
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#include <asm/io.h>
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#include <asm/pci.h>
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#include <pci.h>
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int pci_sh4_init(struct pci_controller *hose)
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{
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hose->first_busno = 0;
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hose->region_count = 0;
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hose->last_busno = 0xff;
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/* PCI memory space */
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pci_set_region(hose->regions + 0,
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CONFIG_PCI_MEM_BUS,
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CONFIG_PCI_MEM_PHYS,
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CONFIG_PCI_MEM_SIZE,
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PCI_REGION_MEM);
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hose->region_count++;
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/* PCI IO space */
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pci_set_region(hose->regions + 1,
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CONFIG_PCI_IO_BUS,
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CONFIG_PCI_IO_PHYS,
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CONFIG_PCI_IO_SIZE,
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PCI_REGION_IO);
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hose->region_count++;
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#if defined(CONFIG_PCI_SYS_BUS)
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/* PCI System Memory space */
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pci_set_region(hose->regions + 2,
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CONFIG_PCI_SYS_BUS,
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CONFIG_PCI_SYS_PHYS,
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CONFIG_PCI_SYS_SIZE,
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PCI_REGION_MEM | PCI_REGION_SYS_MEMORY);
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hose->region_count++;
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#endif
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udelay(1000);
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pci_set_ops(hose,
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pci_hose_read_config_byte_via_dword,
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pci_hose_read_config_word_via_dword,
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pci_sh4_read_config_dword,
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pci_hose_write_config_byte_via_dword,
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pci_hose_write_config_word_via_dword,
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pci_sh4_write_config_dword);
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pci_register_hose(hose);
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udelay(1000);
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#ifdef CONFIG_PCI_SCAN_SHOW
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printf("PCI: Bus Dev VenId DevId Class Int\n");
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#endif
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hose->last_busno = pci_hose_scan(hose);
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return 0;
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}
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int pci_skip_dev(struct pci_controller *hose, pci_dev_t dev)
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{
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return 0;
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}
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#ifdef CONFIG_PCI_SCAN_SHOW
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int pci_print_dev(struct pci_controller *hose, pci_dev_t dev)
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{
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return 1;
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}
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#endif /* CONFIG_PCI_SCAN_SHOW */
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