summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-ixp23xx/ixdp2351.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-ixp23xx/ixdp2351.c')
-rw-r--r--arch/arm/mach-ixp23xx/ixdp2351.c347
1 files changed, 0 insertions, 347 deletions
diff --git a/arch/arm/mach-ixp23xx/ixdp2351.c b/arch/arm/mach-ixp23xx/ixdp2351.c
deleted file mode 100644
index b0e07db..0000000
--- a/arch/arm/mach-ixp23xx/ixdp2351.c
+++ /dev/null
@@ -1,347 +0,0 @@
-/*
- * arch/arm/mach-ixp23xx/ixdp2351.c
- *
- * IXDP2351 board-specific routines
- *
- * Author: Deepak Saxena <dsaxena@plexity.net>
- *
- * Copyright 2005 (c) MontaVista Software, Inc.
- *
- * Based on 2.4 code Copyright 2004 (c) Intel 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/irq.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/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>
-
-/*
- * IXDP2351 Interrupt Handling
- */
-static void ixdp2351_inta_mask(struct irq_data *d)
-{
- *IXDP2351_CPLD_INTA_MASK_SET_REG = IXDP2351_INTA_IRQ_MASK(d->irq);
-}
-
-static void ixdp2351_inta_unmask(struct irq_data *d)
-{
- *IXDP2351_CPLD_INTA_MASK_CLR_REG = IXDP2351_INTA_IRQ_MASK(d->irq);
-}
-
-static void ixdp2351_inta_handler(unsigned int irq, struct irq_desc *desc)
-{
- u16 ex_interrupt =
- *IXDP2351_CPLD_INTA_STAT_REG & IXDP2351_INTA_IRQ_VALID;
- int i;
-
- desc->irq_data.chip->irq_mask(&desc->irq_data);
-
- for (i = 0; i < IXDP2351_INTA_IRQ_NUM; i++) {
- if (ex_interrupt & (1 << i)) {
- int cpld_irq =
- IXP23XX_MACH_IRQ(IXDP2351_INTA_IRQ_BASE + i);
- generic_handle_irq(cpld_irq);
- }
- }
-
- desc->irq_data.chip->irq_unmask(&desc->irq_data);
-}
-
-static struct irq_chip ixdp2351_inta_chip = {
- .irq_ack = ixdp2351_inta_mask,
- .irq_mask = ixdp2351_inta_mask,
- .irq_unmask = ixdp2351_inta_unmask
-};
-
-static void ixdp2351_intb_mask(struct irq_data *d)
-{
- *IXDP2351_CPLD_INTB_MASK_SET_REG = IXDP2351_INTB_IRQ_MASK(d->irq);
-}
-
-static void ixdp2351_intb_unmask(struct irq_data *d)
-{
- *IXDP2351_CPLD_INTB_MASK_CLR_REG = IXDP2351_INTB_IRQ_MASK(d->irq);
-}
-
-static void ixdp2351_intb_handler(unsigned int irq, struct irq_desc *desc)
-{
- u16 ex_interrupt =
- *IXDP2351_CPLD_INTB_STAT_REG & IXDP2351_INTB_IRQ_VALID;
- int i;
-
- desc->irq_data.chip->irq_ack(&desc->irq_data);
-
- for (i = 0; i < IXDP2351_INTB_IRQ_NUM; i++) {
- if (ex_interrupt & (1 << i)) {
- int cpld_irq =
- IXP23XX_MACH_IRQ(IXDP2351_INTB_IRQ_BASE + i);
- generic_handle_irq(cpld_irq);
- }
- }
-
- desc->irq_data.chip->irq_unmask(&desc->irq_data);
-}
-
-static struct irq_chip ixdp2351_intb_chip = {
- .irq_ack = ixdp2351_intb_mask,
- .irq_mask = ixdp2351_intb_mask,
- .irq_unmask = ixdp2351_intb_unmask
-};
-
-void __init ixdp2351_init_irq(void)
-{
- int irq;
-
- /* Mask all interrupts from CPLD, disable simulation */
- *IXDP2351_CPLD_INTA_MASK_SET_REG = (u16) -1;
- *IXDP2351_CPLD_INTB_MASK_SET_REG = (u16) -1;
- *IXDP2351_CPLD_INTA_SIM_REG = 0;
- *IXDP2351_CPLD_INTB_SIM_REG = 0;
-
- ixp23xx_init_irq();
-
- for (irq = IXP23XX_MACH_IRQ(IXDP2351_INTA_IRQ_BASE);
- irq <
- IXP23XX_MACH_IRQ(IXDP2351_INTA_IRQ_BASE + IXDP2351_INTA_IRQ_NUM);
- irq++) {
- if (IXDP2351_INTA_IRQ_MASK(irq) & IXDP2351_INTA_IRQ_VALID) {
- set_irq_flags(irq, IRQF_VALID);
- irq_set_chip_and_handler(irq, &ixdp2351_inta_chip,
- handle_level_irq);
- }
- }
-
- for (irq = IXP23XX_MACH_IRQ(IXDP2351_INTB_IRQ_BASE);
- irq <
- IXP23XX_MACH_IRQ(IXDP2351_INTB_IRQ_BASE + IXDP2351_INTB_IRQ_NUM);
- irq++) {
- if (IXDP2351_INTB_IRQ_MASK(irq) & IXDP2351_INTB_IRQ_VALID) {
- set_irq_flags(irq, IRQF_VALID);
- irq_set_chip_and_handler(irq, &ixdp2351_intb_chip,
- handle_level_irq);
- }
- }
-
- irq_set_chained_handler(IRQ_IXP23XX_INTA, ixdp2351_inta_handler);
- irq_set_chained_handler(IRQ_IXP23XX_INTB, ixdp2351_intb_handler);
-}
-
-/*
- * IXDP2351 PCI
- */
-
-/*
- * This board does not do normal PCI IRQ routing, or any
- * sort of swizzling, so we just need to check where on the
- * bus the device is and figure out what CPLD pin it is
- * being routed to.
- */
-#define DEVPIN(dev, pin) ((pin) | ((dev) << 3))
-
-static int __init ixdp2351_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
- u8 bus = dev->bus->number;
- u32 devpin = DEVPIN(PCI_SLOT(dev->devfn), pin);
- struct pci_bus *tmp_bus = dev->bus;
-
- /* Primary bus, no interrupts here */
- if (!bus)
- return -1;
-
- /* Lookup first leaf in bus tree */
- while ((tmp_bus->parent != NULL) && (tmp_bus->parent->parent != NULL))
- tmp_bus = tmp_bus->parent;
-
- /* Select between known bridges */
- switch (tmp_bus->self->devfn | (tmp_bus->self->bus->number << 8)) {
- /* Device is located after first bridge */
- case 0x0008:
- if (tmp_bus == dev->bus) {
- /* Device is located directy after first bridge */
- switch (devpin) {
- /* Onboard 82546 */
- case DEVPIN(1, 1): /* Onboard 82546 ch 0 */
- return IRQ_IXDP2351_INTA_82546;
- case DEVPIN(1, 2): /* Onboard 82546 ch 1 */
- return IRQ_IXDP2351_INTB_82546;
- /* PMC SLOT */
- case DEVPIN(0, 1): /* PMCP INTA# */
- case DEVPIN(2, 4): /* PMCS INTD# */
- return IRQ_IXDP2351_SPCI_PMC_INTA;
- case DEVPIN(0, 2): /* PMCP INTB# */
- case DEVPIN(2, 1): /* PMCS INTA# */
- return IRQ_IXDP2351_SPCI_PMC_INTB;
- case DEVPIN(0, 3): /* PMCP INTC# */
- case DEVPIN(2, 2): /* PMCS INTB# */
- return IRQ_IXDP2351_SPCI_PMC_INTC;
- case DEVPIN(0, 4): /* PMCP INTD# */
- case DEVPIN(2, 3): /* PMCS INTC# */
- return IRQ_IXDP2351_SPCI_PMC_INTD;
- }
- } else {
- /* Device is located indirectly after first bridge */
- /* Not supported now */
- return -1;
- }
- break;
- case 0x0010:
- if (tmp_bus == dev->bus) {
- /* Device is located directy after second bridge */
- /* Secondary bus of second bridge */
- switch (devpin) {
- case DEVPIN(0, 1): /* DB#0 */
- case DEVPIN(0, 2):
- case DEVPIN(0, 3):
- case DEVPIN(0, 4):
- return IRQ_IXDP2351_SPCI_DB_0;
- case DEVPIN(1, 1): /* DB#1 */
- case DEVPIN(1, 2):
- case DEVPIN(1, 3):
- case DEVPIN(1, 4):
- return IRQ_IXDP2351_SPCI_DB_1;
- case DEVPIN(2, 1): /* FIC1 */
- case DEVPIN(2, 2):
- case DEVPIN(2, 3):
- case DEVPIN(2, 4):
- case DEVPIN(3, 1): /* FIC2 */
- case DEVPIN(3, 2):
- case DEVPIN(3, 3):
- case DEVPIN(3, 4):
- return IRQ_IXDP2351_SPCI_FIC;
- }
- } else {
- /* Device is located indirectly after second bridge */
- /* Not supported now */
- return -1;
- }
- break;
- }
-
- return -1;
-}
-
-struct hw_pci ixdp2351_pci __initdata = {
- .nr_controllers = 1,
- .preinit = ixp23xx_pci_preinit,
- .setup = ixp23xx_pci_setup,
- .scan = ixp23xx_pci_scan_bus,
- .map_irq = ixdp2351_map_irq,
-};
-
-int __init ixdp2351_pci_init(void)
-{
- if (machine_is_ixdp2351())
- pci_common_init(&ixdp2351_pci);
-
- return 0;
-}
-
-subsys_initcall(ixdp2351_pci_init);
-
-/*
- * IXDP2351 Static Mapped I/O
- */
-static struct map_desc ixdp2351_io_desc[] __initdata = {
- {
- .virtual = IXDP2351_NP_VIRT_BASE,
- .pfn = __phys_to_pfn((u64)IXDP2351_NP_PHYS_BASE),
- .length = IXDP2351_NP_PHYS_SIZE,
- .type = MT_DEVICE
- }, {
- .virtual = IXDP2351_BB_BASE_VIRT,
- .pfn = __phys_to_pfn((u64)IXDP2351_BB_BASE_PHYS),
- .length = IXDP2351_BB_SIZE,
- .type = MT_DEVICE
- }
-};
-
-static void __init ixdp2351_map_io(void)
-{
- ixp23xx_map_io();
- iotable_init(ixdp2351_io_desc, ARRAY_SIZE(ixdp2351_io_desc));
-}
-
-static struct physmap_flash_data ixdp2351_flash_data = {
- .width = 1,
-};
-
-static struct resource ixdp2351_flash_resource = {
- .start = 0x90000000,
- .end = 0x93ffffff,
- .flags = IORESOURCE_MEM,
-};
-
-static struct platform_device ixdp2351_flash = {
- .name = "physmap-flash",
- .id = 0,
- .dev = {
- .platform_data = &ixdp2351_flash_data,
- },
- .num_resources = 1,
- .resource = &ixdp2351_flash_resource,
-};
-
-static void __init ixdp2351_init(void)
-{
- platform_device_register(&ixdp2351_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();
-}
-
-static void ixdp2351_restart(char mode, const char *cmd)
-{
- /* First try machine specific support */
-
- *IXDP2351_CPLD_RESET1_REG = IXDP2351_CPLD_RESET1_MAGIC;
- (void) *IXDP2351_CPLD_RESET1_REG;
- *IXDP2351_CPLD_RESET1_REG = IXDP2351_CPLD_RESET1_ENABLE;
-
- ixp23xx_restart(mode, cmd);
-}
-
-MACHINE_START(IXDP2351, "Intel IXDP2351 Development Platform")
- /* Maintainer: MontaVista Software, Inc. */
- .map_io = ixdp2351_map_io,
- .init_irq = ixdp2351_init_irq,
- .timer = &ixp23xx_timer,
- .atag_offset = 0x100,
- .init_machine = ixdp2351_init,
- .restart = ixdp2351_restart,
-MACHINE_END