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author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-28 13:53:03 -0800 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-28 13:53:03 -0800 |
commit | ca9ba4471c1203bb6e759b76e83167fec54fe590 (patch) | |
tree | 8aeb359631742f77f635cb5ff785bea9132502f9 /arch/arm/mach-ixp23xx/roadrunner.c | |
parent | d4965b3e2ff94d0c7b7e6e7e9794b54950a2f4b9 (diff) | |
parent | c4713074375c61f939310b04e92090afe29810dc (diff) | |
download | op-kernel-dev-ca9ba4471c1203bb6e759b76e83167fec54fe590.zip op-kernel-dev-ca9ba4471c1203bb6e759b76e83167fec54fe590.tar.gz |
Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
[ARM] 3388/1: ixp23xx: add core ixp23xx support
[ARM] 3417/1: add support for logicpd pxa270 card engine
[ARM] 3387/1: ixp23xx: add defconfig
[ARM] 3377/2: add support for intel xsc3 core
[ARM] Move ice-dcc code into misc.c
[ARM] Fix decompressor serial IO to give CRLF not LFCR
[ARM] proc-v6: mark page table walks outer-cacheable, shared. Enable NX.
[ARM] nommu: trivial patch for arch/arm/lib/Makefile
[ARM] 3416/1: Update LART site URL
[ARM] 3415/1: Akita: Add missing EXPORT_SYMBOL
[ARM] 3414/1: ep93xx: reset ethernet controller before uncompressing
Diffstat (limited to 'arch/arm/mach-ixp23xx/roadrunner.c')
-rw-r--r-- | arch/arm/mach-ixp23xx/roadrunner.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/arch/arm/mach-ixp23xx/roadrunner.c b/arch/arm/mach-ixp23xx/roadrunner.c new file mode 100644 index 0000000..43c14e7 --- /dev/null +++ b/arch/arm/mach-ixp23xx/roadrunner.c @@ -0,0 +1,164 @@ +/* + * 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/config.h> +#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.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 <asm/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/irq.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 roadrunner_pci_preinit(void) +{ + set_irq_type(IRQ_ROADRUNNER_PCI_INTC, IRQT_LOW); + set_irq_type(IRQ_ROADRUNNER_PCI_INTD, IRQT_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 void __init roadrunner_init(void) +{ + physmap_configure(0x90000000, 0x04000000, 2, NULL); + + /* + * 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 |