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>
74 lines
2.0 KiB
C
74 lines
2.0 KiB
C
/*
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* linux/arch/sh/drivers/pci/ops-sdk7780.c
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*
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* Copyright (C) 2006 Nobuhiro Iwamatsu
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*
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* PCI initialization for the SDK7780SE03
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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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#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/sdk7780.h>
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#include <asm/io.h>
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#include "pci-sh4.h"
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/* IDSEL [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31] */
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static char sdk7780_irq_tab[4][16] __initdata = {
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/* INTA */
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{ 65, 68, 67, 68, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
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/* INTB */
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{ 66, 65, -1, 65, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
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/* INTC */
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{ 67, 66, -1, 66, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
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/* INTD */
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{ 68, 67, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 },
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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 sdk7780_irq_tab[pin-1][slot];
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}
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static struct resource sdk7780_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 sdk7780_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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struct pci_channel board_pci_channels[] = {
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{ &sh4_pci_ops, &sdk7780_io_resource, &sdk7780_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 sdk7780_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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printk(KERN_INFO "SH7780 PCI: Finished initializing PCI controller\n");
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return sh7780_pcic_init(&board_pci_channels[0], &sdk7780_pci_map);
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}
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