b8b47bfbe4
These patches rework the pci code for the sh architecture. Currently each board implements some kind of ioport to address mapping. Some boards use generic_io_base others try passing addresses as io ports. This is the first set of patches that try to unify the pci code as much as possible to avoid duplicated code. This will in the end lead to fewer lines board specific code and more generic code. This patch makes sure a struct pci_channel pointer is passed along to various pci functions such as pci_read_reg(), pci_write_reg(), pci_fixup_pcic(), sh7751_pcic_init() and sh7780_pcic_init(). Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
/*
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* Author: Ian DaSilva (idasilva@mvista.com)
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*
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* Highly leveraged from pci-bigsur.c, written by Dustin McIntire.
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*
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* May be copied or modified under the terms of the GNU General Public
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* License. See linux/COPYING for more information.
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*
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* PCI initialization for the Renesas SH7780 Highlander R7780RP-1 board
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*/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/delay.h>
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#include <linux/pci.h>
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#include <mach/highlander.h>
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#include <asm/io.h>
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#include "pci-sh4.h"
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static char irq_tab[] __initdata = {
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65, 66, 67, 68,
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};
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int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
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{
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return irq_tab[slot];
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}
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static struct resource sh7780_io_resource = {
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.name = "SH7780_IO",
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.start = SH7780_PCI_IO_BASE,
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.end = SH7780_PCI_IO_BASE + SH7780_PCI_IO_SIZE - 1,
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.flags = IORESOURCE_IO
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};
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static struct resource sh7780_mem_resource = {
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.name = "SH7780_mem",
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.start = SH7780_PCI_MEMORY_BASE,
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.end = SH7780_PCI_MEMORY_BASE + SH7780_PCI_MEM_SIZE - 1,
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.flags = IORESOURCE_MEM
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};
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extern struct pci_ops sh7780_pci_ops;
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struct pci_channel board_pci_channels[] = {
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{ &sh4_pci_ops, &sh7780_io_resource, &sh7780_mem_resource, 0, 0xff },
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{ NULL, NULL, NULL, 0, 0 },
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};
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EXPORT_SYMBOL(board_pci_channels);
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static struct sh4_pci_address_map sh7780_pci_map = {
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.window0 = {
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.base = SH7780_CS2_BASE_ADDR,
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.size = 0x04000000,
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},
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.window1 = {
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.base = SH7780_CS3_BASE_ADDR,
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.size = 0x04000000,
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},
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.flags = SH4_PCIC_NO_RESET,
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};
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int __init pcibios_init_platform(void)
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{
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return sh7780_pcic_init(&board_pci_channels[0], &sh7780_pci_map);
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}
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