pci-emma2rh.c
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/*
* Copyright (C) NEC Electronics Corporation 2004-2006
*
* This file is based on the arch/mips/ddb5xxx/ddb5477/pci.c
*
* Copyright 2001 MontaVista Software Inc.
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <asm/bootinfo.h>
#include <asm/emma/emma2rh.h>
static struct resource pci_io_resource = {
.name = "pci IO space",
.start = EMMA2RH_PCI_IO_BASE,
.end = EMMA2RH_PCI_IO_BASE + EMMA2RH_PCI_IO_SIZE - 1,
.flags = IORESOURCE_IO,
};
static struct resource pci_mem_resource = {
.name = "pci memory space",
.start = EMMA2RH_PCI_MEM_BASE,
.end = EMMA2RH_PCI_MEM_BASE + EMMA2RH_PCI_MEM_SIZE - 1,
.flags = IORESOURCE_MEM,
};
extern struct pci_ops emma2rh_pci_ops;
static struct pci_controller emma2rh_pci_controller = {
.pci_ops = &emma2rh_pci_ops,
.mem_resource = &pci_mem_resource,
.io_resource = &pci_io_resource,
.mem_offset = -0x04000000,
.io_offset = 0,
};
static void __init emma2rh_pci_init(void)
{
/* setup PCI interface */
emma2rh_out32(EMMA2RH_PCI_ARBIT_CTR, 0x70f);
emma2rh_out32(EMMA2RH_PCI_IWIN0_CTR, 0x80000a18);
emma2rh_out32(EMMA2RH_PCI_CONFIG_BASE + PCI_COMMAND,
PCI_STATUS_DEVSEL_MEDIUM | PCI_STATUS_CAP_LIST |
PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
emma2rh_out32(EMMA2RH_PCI_CONFIG_BASE + PCI_BASE_ADDRESS_0, 0x10000000);
emma2rh_out32(EMMA2RH_PCI_CONFIG_BASE + PCI_BASE_ADDRESS_1, 0x00000000);
emma2rh_out32(EMMA2RH_PCI_IWIN0_CTR, 0x12000000 | 0x218);
emma2rh_out32(EMMA2RH_PCI_IWIN1_CTR, 0x18000000 | 0x600);
emma2rh_out32(EMMA2RH_PCI_INIT_ESWP, 0x00000200);
emma2rh_out32(EMMA2RH_PCI_TWIN_CTR, 0x00009200);
emma2rh_out32(EMMA2RH_PCI_TWIN_BADR, 0x00000000);
emma2rh_out32(EMMA2RH_PCI_TWIN0_DADR, 0x00000000);
emma2rh_out32(EMMA2RH_PCI_TWIN1_DADR, 0x00000000);
}
static int __init emma2rh_pci_setup(void)
{
emma2rh_pci_init();
register_pci_controller(&emma2rh_pci_controller);
return 0;
}
arch_initcall(emma2rh_pci_setup);