mirror of
https://github.com/torvalds/linux.git
synced 2024-11-01 01:31:44 +00:00
a09e64fbc0
This just leaves include/asm-arm/plat-* to deal with. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
182 lines
4.3 KiB
C
182 lines
4.3 KiB
C
/*
|
|
* arch/arm/mach-ixp23xx/roadrunner.c
|
|
*
|
|
* RoadRunner board-specific routines
|
|
*
|
|
* Author: Deepak Saxena <dsaxena@plexity.net>
|
|
*
|
|
* Copyright 2005 (c) MontaVista Software, Inc.
|
|
*
|
|
* Based on 2.4 code Copyright 2005 (c) ADI Engineering Corporation
|
|
*
|
|
* This file is licensed under the terms of the GNU General Public
|
|
* License version 2. This program is licensed "as is" without any
|
|
* warranty of any kind, whether express or implied.
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/spinlock.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/serial.h>
|
|
#include <linux/tty.h>
|
|
#include <linux/bitops.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/serial_8250.h>
|
|
#include <linux/serial_core.h>
|
|
#include <linux/device.h>
|
|
#include <linux/mm.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/mtd/physmap.h>
|
|
|
|
#include <asm/types.h>
|
|
#include <asm/setup.h>
|
|
#include <asm/memory.h>
|
|
#include <mach/hardware.h>
|
|
#include <asm/mach-types.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/system.h>
|
|
#include <asm/tlbflush.h>
|
|
#include <asm/pgtable.h>
|
|
|
|
#include <asm/mach/map.h>
|
|
#include <asm/mach/irq.h>
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/pci.h>
|
|
|
|
/*
|
|
* Interrupt mapping
|
|
*/
|
|
#define INTA IRQ_ROADRUNNER_PCI_INTA
|
|
#define INTB IRQ_ROADRUNNER_PCI_INTB
|
|
#define INTC IRQ_ROADRUNNER_PCI_INTC
|
|
#define INTD IRQ_ROADRUNNER_PCI_INTD
|
|
|
|
#define INTC_PIN IXP23XX_GPIO_PIN_11
|
|
#define INTD_PIN IXP23XX_GPIO_PIN_12
|
|
|
|
static int __init roadrunner_map_irq(struct pci_dev *dev, u8 idsel, u8 pin)
|
|
{
|
|
static int pci_card_slot_irq[] = {INTB, INTC, INTD, INTA};
|
|
static int pmc_card_slot_irq[] = {INTA, INTB, INTC, INTD};
|
|
static int usb_irq[] = {INTB, INTC, INTD, -1};
|
|
static int mini_pci_1_irq[] = {INTB, INTC, -1, -1};
|
|
static int mini_pci_2_irq[] = {INTC, INTD, -1, -1};
|
|
|
|
switch(dev->bus->number) {
|
|
case 0:
|
|
switch(dev->devfn) {
|
|
case 0x0: // PCI-PCI bridge
|
|
break;
|
|
case 0x8: // PCI Card Slot
|
|
return pci_card_slot_irq[pin - 1];
|
|
case 0x10: // PMC Slot
|
|
return pmc_card_slot_irq[pin - 1];
|
|
case 0x18: // PMC Slot Secondary Agent
|
|
break;
|
|
case 0x20: // IXP Processor
|
|
break;
|
|
default:
|
|
return NO_IRQ;
|
|
}
|
|
break;
|
|
|
|
case 1:
|
|
switch(dev->devfn) {
|
|
case 0x0: // IDE Controller
|
|
return (pin == 1) ? INTC : -1;
|
|
case 0x8: // USB fun 0
|
|
case 0x9: // USB fun 1
|
|
case 0xa: // USB fun 2
|
|
return usb_irq[pin - 1];
|
|
case 0x10: // Mini PCI 1
|
|
return mini_pci_1_irq[pin-1];
|
|
case 0x18: // Mini PCI 2
|
|
return mini_pci_2_irq[pin-1];
|
|
case 0x20: // MEM slot
|
|
return (pin == 1) ? INTA : -1;
|
|
default:
|
|
return NO_IRQ;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
return NO_IRQ;
|
|
}
|
|
|
|
return NO_IRQ;
|
|
}
|
|
|
|
static void __init roadrunner_pci_preinit(void)
|
|
{
|
|
set_irq_type(IRQ_ROADRUNNER_PCI_INTC, IRQ_TYPE_LEVEL_LOW);
|
|
set_irq_type(IRQ_ROADRUNNER_PCI_INTD, IRQ_TYPE_LEVEL_LOW);
|
|
|
|
ixp23xx_pci_preinit();
|
|
}
|
|
|
|
static struct hw_pci roadrunner_pci __initdata = {
|
|
.nr_controllers = 1,
|
|
.preinit = roadrunner_pci_preinit,
|
|
.setup = ixp23xx_pci_setup,
|
|
.scan = ixp23xx_pci_scan_bus,
|
|
.map_irq = roadrunner_map_irq,
|
|
};
|
|
|
|
static int __init roadrunner_pci_init(void)
|
|
{
|
|
if (machine_is_roadrunner())
|
|
pci_common_init(&roadrunner_pci);
|
|
|
|
return 0;
|
|
};
|
|
|
|
subsys_initcall(roadrunner_pci_init);
|
|
|
|
static struct physmap_flash_data roadrunner_flash_data = {
|
|
.width = 2,
|
|
};
|
|
|
|
static struct resource roadrunner_flash_resource = {
|
|
.start = 0x90000000,
|
|
.end = 0x93ffffff,
|
|
.flags = IORESOURCE_MEM,
|
|
};
|
|
|
|
static struct platform_device roadrunner_flash = {
|
|
.name = "physmap-flash",
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = &roadrunner_flash_data,
|
|
},
|
|
.num_resources = 1,
|
|
.resource = &roadrunner_flash_resource,
|
|
};
|
|
|
|
static void __init roadrunner_init(void)
|
|
{
|
|
platform_device_register(&roadrunner_flash);
|
|
|
|
/*
|
|
* Mark flash as writeable
|
|
*/
|
|
IXP23XX_EXP_CS0[0] |= IXP23XX_FLASH_WRITABLE;
|
|
IXP23XX_EXP_CS0[1] |= IXP23XX_FLASH_WRITABLE;
|
|
IXP23XX_EXP_CS0[2] |= IXP23XX_FLASH_WRITABLE;
|
|
IXP23XX_EXP_CS0[3] |= IXP23XX_FLASH_WRITABLE;
|
|
|
|
ixp23xx_sys_init();
|
|
}
|
|
|
|
MACHINE_START(ROADRUNNER, "ADI Engineering RoadRunner Development Platform")
|
|
/* Maintainer: Deepak Saxena */
|
|
.phys_io = IXP23XX_PERIPHERAL_PHYS,
|
|
.io_pg_offst = ((IXP23XX_PERIPHERAL_VIRT >> 18)) & 0xfffc,
|
|
.map_io = ixp23xx_map_io,
|
|
.init_irq = ixp23xx_init_irq,
|
|
.timer = &ixp23xx_timer,
|
|
.boot_params = 0x00000100,
|
|
.init_machine = roadrunner_init,
|
|
MACHINE_END
|