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authorScott Wood <scottwood@freescale.com>2014-04-07 23:49:35 (GMT)
committerScott Wood <scottwood@freescale.com>2014-04-07 23:49:35 (GMT)
commit62b8c978ee6b8d135d9e7953221de58000dba986 (patch)
tree683b04b2e627f6710c22c151b23c8cc9a165315e /arch/arm/mach-shark
parent78fd82238d0e5716578c326404184a27ba67fd6e (diff)
downloadlinux-fsl-qoriq-62b8c978ee6b8d135d9e7953221de58000dba986.tar.xz
Rewind v3.13-rc3+ (78fd82238d0e5716) to v3.12
Diffstat (limited to 'arch/arm/mach-shark')
-rw-r--r--arch/arm/mach-shark/Makefile10
-rw-r--r--arch/arm/mach-shark/Makefile.boot2
-rw-r--r--arch/arm/mach-shark/core.c146
-rw-r--r--arch/arm/mach-shark/dma.c23
-rw-r--r--arch/arm/mach-shark/include/mach/debug-macro.S34
-rw-r--r--arch/arm/mach-shark/include/mach/entry-macro.S36
-rw-r--r--arch/arm/mach-shark/include/mach/framebuffer.h16
-rw-r--r--arch/arm/mach-shark/include/mach/hardware.h16
-rw-r--r--arch/arm/mach-shark/include/mach/irqs.h13
-rw-r--r--arch/arm/mach-shark/include/mach/isa-dma.h13
-rw-r--r--arch/arm/mach-shark/include/mach/memory.h26
-rw-r--r--arch/arm/mach-shark/include/mach/timex.h7
-rw-r--r--arch/arm/mach-shark/include/mach/uncompress.h50
-rw-r--r--arch/arm/mach-shark/irq.c108
-rw-r--r--arch/arm/mach-shark/leds.c117
-rw-r--r--arch/arm/mach-shark/pci.c57
16 files changed, 674 insertions, 0 deletions
diff --git a/arch/arm/mach-shark/Makefile b/arch/arm/mach-shark/Makefile
new file mode 100644
index 0000000..2965718
--- /dev/null
+++ b/arch/arm/mach-shark/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile for the linux kernel.
+#
+
+# Object file lists.
+
+obj-y := core.o dma.o irq.o pci.o leds.o
+obj-m :=
+obj-n :=
+obj- :=
diff --git a/arch/arm/mach-shark/Makefile.boot b/arch/arm/mach-shark/Makefile.boot
new file mode 100644
index 0000000..e40e24e
--- /dev/null
+++ b/arch/arm/mach-shark/Makefile.boot
@@ -0,0 +1,2 @@
+ zreladdr-y += 0x08008000
+
diff --git a/arch/arm/mach-shark/core.c b/arch/arm/mach-shark/core.c
new file mode 100644
index 0000000..1d32c5e
--- /dev/null
+++ b/arch/arm/mach-shark/core.c
@@ -0,0 +1,146 @@
+/*
+ * linux/arch/arm/mach-shark/arch.c
+ *
+ * Architecture specific stuff.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/sched.h>
+#include <linux/serial_8250.h>
+#include <linux/io.h>
+#include <linux/cpu.h>
+#include <linux/reboot.h>
+
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+#include <asm/param.h>
+#include <asm/system_misc.h>
+
+#include <asm/mach/map.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+
+#define ROMCARD_SIZE 0x08000000
+#define ROMCARD_START 0x10000000
+
+static void shark_restart(enum reboot_mode mode, const char *cmd)
+{
+ short temp;
+ /* Reset the Machine via pc[3] of the sequoia chipset */
+ outw(0x09,0x24);
+ temp=inw(0x26);
+ temp = temp | (1<<3) | (1<<10);
+ outw(0x09,0x24);
+ outw(temp,0x26);
+}
+
+static struct plat_serial8250_port serial_platform_data[] = {
+ {
+ .iobase = 0x3f8,
+ .irq = 4,
+ .uartclk = 1843200,
+ .regshift = 0,
+ .iotype = UPIO_PORT,
+ .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+ },
+ {
+ .iobase = 0x2f8,
+ .irq = 3,
+ .uartclk = 1843200,
+ .regshift = 0,
+ .iotype = UPIO_PORT,
+ .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+ },
+ { },
+};
+
+static struct platform_device serial_device = {
+ .name = "serial8250",
+ .id = PLAT8250_DEV_PLATFORM,
+ .dev = {
+ .platform_data = serial_platform_data,
+ },
+};
+
+static struct resource rtc_resources[] = {
+ [0] = {
+ .start = 0x70,
+ .end = 0x73,
+ .flags = IORESOURCE_IO,
+ },
+ [1] = {
+ .start = IRQ_ISA_RTC_ALARM,
+ .end = IRQ_ISA_RTC_ALARM,
+ .flags = IORESOURCE_IRQ,
+ }
+};
+
+static struct platform_device rtc_device = {
+ .name = "rtc_cmos",
+ .id = -1,
+ .resource = rtc_resources,
+ .num_resources = ARRAY_SIZE(rtc_resources),
+};
+
+static int __init shark_init(void)
+{
+ int ret;
+
+ if (machine_is_shark())
+ {
+ ret = platform_device_register(&rtc_device);
+ if (ret) printk(KERN_ERR "Unable to register RTC device: %d\n", ret);
+ ret = platform_device_register(&serial_device);
+ if (ret) printk(KERN_ERR "Unable to register Serial device: %d\n", ret);
+ }
+ return 0;
+}
+
+arch_initcall(shark_init);
+
+extern void shark_init_irq(void);
+
+#define IRQ_TIMER 0
+#define HZ_TIME ((1193180 + HZ/2) / HZ)
+
+static irqreturn_t
+shark_timer_interrupt(int irq, void *dev_id)
+{
+ timer_tick();
+ return IRQ_HANDLED;
+}
+
+static struct irqaction shark_timer_irq = {
+ .name = "Shark Timer Tick",
+ .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
+ .handler = shark_timer_interrupt,
+};
+
+/*
+ * Set up timer interrupt, and return the current time in seconds.
+ */
+static void __init shark_timer_init(void)
+{
+ outb(0x34, 0x43); /* binary, mode 0, LSB/MSB, Ch 0 */
+ outb(HZ_TIME & 0xff, 0x40); /* LSB of count */
+ outb(HZ_TIME >> 8, 0x40);
+
+ setup_irq(IRQ_TIMER, &shark_timer_irq);
+}
+
+static void shark_init_early(void)
+{
+ cpu_idle_poll_ctrl(true);
+}
+
+MACHINE_START(SHARK, "Shark")
+ /* Maintainer: Alexander Schulz */
+ .atag_offset = 0x3000,
+ .init_early = shark_init_early,
+ .init_irq = shark_init_irq,
+ .init_time = shark_timer_init,
+ .dma_zone_size = SZ_4M,
+ .restart = shark_restart,
+MACHINE_END
diff --git a/arch/arm/mach-shark/dma.c b/arch/arm/mach-shark/dma.c
new file mode 100644
index 0000000..10b5b8b
--- /dev/null
+++ b/arch/arm/mach-shark/dma.c
@@ -0,0 +1,23 @@
+/*
+ * linux/arch/arm/mach-shark/dma.c
+ *
+ * by Alexander Schulz
+ *
+ * derived from:
+ * arch/arm/kernel/dma-ebsa285.c
+ * Copyright (C) 1998 Phil Blundell
+ */
+
+#include <linux/init.h>
+
+#include <asm/dma.h>
+#include <asm/mach/dma.h>
+
+static int __init shark_dma_init(void)
+{
+#ifdef CONFIG_ISA_DMA
+ isa_init_dma();
+#endif
+ return 0;
+}
+core_initcall(shark_dma_init);
diff --git a/arch/arm/mach-shark/include/mach/debug-macro.S b/arch/arm/mach-shark/include/mach/debug-macro.S
new file mode 100644
index 0000000..d129119
--- /dev/null
+++ b/arch/arm/mach-shark/include/mach/debug-macro.S
@@ -0,0 +1,34 @@
+/* arch/arm/mach-shark/include/mach/debug-macro.S
+ *
+ * Debugging macro include header
+ *
+ * Copyright (C) 1994-1999 Russell King
+ * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+*/
+
+ .macro addruart, rp, rv, tmp
+ mov \rp, #0x3f8
+ orr \rv, \rp, #0xfe000000
+ orr \rv, \rv, #0x00e00000
+ orr \rp, \rp, #0x40000000
+ .endm
+
+ .macro senduart,rd,rx
+ strb \rd, [\rx]
+ .endm
+
+ .macro waituart,rd,rx
+ .endm
+
+ .macro busyuart,rd,rx
+ mov \rd, #0
+1001: add \rd, \rd, #1
+ teq \rd, #0x10000
+ bne 1001b
+ .endm
+
diff --git a/arch/arm/mach-shark/include/mach/entry-macro.S b/arch/arm/mach-shark/include/mach/entry-macro.S
new file mode 100644
index 0000000..c9e49f0
--- /dev/null
+++ b/arch/arm/mach-shark/include/mach/entry-macro.S
@@ -0,0 +1,36 @@
+/*
+ * arch/arm/mach-shark/include/mach/entry-macro.S
+ *
+ * Low-level IRQ helper macros for Shark platform
+ *
+ * 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.
+ */
+ .macro get_irqnr_preamble, base, tmp
+ mov \base, #0xfe000000
+ orr \base, \base, #0x00e00000
+ .endm
+
+ .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
+
+ mov \irqstat, #0x0C
+ strb \irqstat, [\base, #0x20] @outb(0x0C, 0x20) /* Poll command */
+ ldrb \irqnr, [\base, #0x20] @irq = inb(0x20) & 7
+ and \irqstat, \irqnr, #0x80
+ teq \irqstat, #0
+ beq 43f
+ and \irqnr, \irqnr, #7
+ teq \irqnr, #2
+ bne 44f
+43: mov \irqstat, #0x0C
+ strb \irqstat, [\base, #0xa0] @outb(0x0C, 0xA0) /* Poll command */
+ ldrb \irqnr, [\base, #0xa0] @irq = (inb(0xA0) & 7) + 8
+ and \irqstat, \irqnr, #0x80
+ teq \irqstat, #0
+ beq 44f
+ and \irqnr, \irqnr, #7
+ add \irqnr, \irqnr, #8
+44: teq \irqstat, #0
+ .endm
+
diff --git a/arch/arm/mach-shark/include/mach/framebuffer.h b/arch/arm/mach-shark/include/mach/framebuffer.h
new file mode 100644
index 0000000..84a5bf6
--- /dev/null
+++ b/arch/arm/mach-shark/include/mach/framebuffer.h
@@ -0,0 +1,16 @@
+/*
+ * arch/arm/mach-shark/include/mach/framebuffer.h
+ *
+ * by Alexander Schulz
+ *
+ */
+
+#ifndef __ASM_ARCH_FRAMEBUFFER_H
+#define __ASM_ARCH_FRAMEBUFFER_H
+
+/* defines for the Framebuffer */
+#define FB_START 0x06000000
+#define FB_SIZE 0x01000000
+
+#endif
+
diff --git a/arch/arm/mach-shark/include/mach/hardware.h b/arch/arm/mach-shark/include/mach/hardware.h
new file mode 100644
index 0000000..663f952
--- /dev/null
+++ b/arch/arm/mach-shark/include/mach/hardware.h
@@ -0,0 +1,16 @@
+/*
+ * arch/arm/mach-shark/include/mach/hardware.h
+ *
+ * by Alexander Schulz
+ *
+ * derived from:
+ * arch/arm/mach-ebsa110/include/mach/hardware.h
+ * Copyright (C) 1996-1999 Russell King.
+ */
+#ifndef __ASM_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+#define UNCACHEABLE_ADDR 0xdf010000
+
+#endif
+
diff --git a/arch/arm/mach-shark/include/mach/irqs.h b/arch/arm/mach-shark/include/mach/irqs.h
new file mode 100644
index 0000000..c8e8a4e
--- /dev/null
+++ b/arch/arm/mach-shark/include/mach/irqs.h
@@ -0,0 +1,13 @@
+/*
+ * arch/arm/mach-shark/include/mach/irqs.h
+ *
+ * by Alexander Schulz
+ */
+
+#define NR_IRQS 16
+
+#define IRQ_ISA_KEYBOARD 1
+#define IRQ_ISA_RTC_ALARM 8
+#define I8042_KBD_IRQ 1
+#define I8042_AUX_IRQ 12
+#define IRQ_HARDDISK 14
diff --git a/arch/arm/mach-shark/include/mach/isa-dma.h b/arch/arm/mach-shark/include/mach/isa-dma.h
new file mode 100644
index 0000000..96c43b8
--- /dev/null
+++ b/arch/arm/mach-shark/include/mach/isa-dma.h
@@ -0,0 +1,13 @@
+/*
+ * arch/arm/mach-shark/include/mach/isa-dma.h
+ *
+ * by Alexander Schulz
+ */
+#ifndef __ASM_ARCH_DMA_H
+#define __ASM_ARCH_DMA_H
+
+#define MAX_DMA_CHANNELS 8
+#define DMA_ISA_CASCADE 4
+
+#endif /* _ASM_ARCH_DMA_H */
+
diff --git a/arch/arm/mach-shark/include/mach/memory.h b/arch/arm/mach-shark/include/mach/memory.h
new file mode 100644
index 0000000..1cf8d69
--- /dev/null
+++ b/arch/arm/mach-shark/include/mach/memory.h
@@ -0,0 +1,26 @@
+/*
+ * arch/arm/mach-shark/include/mach/memory.h
+ *
+ * by Alexander Schulz
+ *
+ * derived from:
+ * arch/arm/mach-ebsa110/include/mach/memory.h
+ * Copyright (c) 1996-1999 Russell King.
+ */
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#include <asm/sizes.h>
+
+/*
+ * Physical DRAM offset.
+ */
+#define PLAT_PHYS_OFFSET UL(0x08000000)
+
+/*
+ * Cache flushing area
+ */
+#define FLUSH_BASE_PHYS 0x80000000
+#define FLUSH_BASE 0xdf000000
+
+#endif
diff --git a/arch/arm/mach-shark/include/mach/timex.h b/arch/arm/mach-shark/include/mach/timex.h
new file mode 100644
index 0000000..bb6eeae
--- /dev/null
+++ b/arch/arm/mach-shark/include/mach/timex.h
@@ -0,0 +1,7 @@
+/*
+ * arch/arm/mach-shark/include/mach/timex.h
+ *
+ * by Alexander Schulz
+ */
+
+#define CLOCK_TICK_RATE 1193180
diff --git a/arch/arm/mach-shark/include/mach/uncompress.h b/arch/arm/mach-shark/include/mach/uncompress.h
new file mode 100644
index 0000000..a168435
--- /dev/null
+++ b/arch/arm/mach-shark/include/mach/uncompress.h
@@ -0,0 +1,50 @@
+/*
+ * arch/arm/mach-shark/include/mach/uncompress.h
+ * by Alexander Schulz
+ *
+ * derived from:
+ * arch/arm/mach-footbridge/include/mach/uncompress.h
+ * Copyright (C) 1996,1997,1998 Russell King
+ */
+
+#define SERIAL_BASE ((volatile unsigned char *)0x400003f8)
+
+static inline void putc(int c)
+{
+ volatile int t;
+
+ SERIAL_BASE[0] = c;
+ t=0x10000;
+ while (t--);
+}
+
+static inline void flush(void)
+{
+}
+
+#ifdef DEBUG
+static void putn(unsigned long z)
+{
+ int i;
+ char x;
+
+ putc('0');
+ putc('x');
+ for (i=0;i<8;i++) {
+ x='0'+((z>>((7-i)*4))&0xf);
+ if (x>'9') x=x-'0'+'A'-10;
+ putc(x);
+ }
+}
+
+static void putr()
+{
+ putc('\n');
+ putc('\r');
+}
+#endif
+
+/*
+ * nothing to do
+ */
+#define arch_decomp_setup()
diff --git a/arch/arm/mach-shark/irq.c b/arch/arm/mach-shark/irq.c
new file mode 100644
index 0000000..5dce13e
--- /dev/null
+++ b/arch/arm/mach-shark/irq.c
@@ -0,0 +1,108 @@
+/*
+ * linux/arch/arm/mach-shark/irq.c
+ *
+ * by Alexander Schulz
+ *
+ * derived from linux/arch/ppc/kernel/i8259.c and:
+ * arch/arm/mach-ebsa110/include/mach/irq.h
+ * Copyright (C) 1996-1998 Russell King
+ */
+
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+
+#include <asm/irq.h>
+#include <asm/mach/irq.h>
+
+/*
+ * 8259A PIC functions to handle ISA devices:
+ */
+
+/*
+ * This contains the irq mask for both 8259A irq controllers,
+ * Let through the cascade-interrupt no. 2 (ff-(1<<2)==fb)
+ */
+static unsigned char cached_irq_mask[2] = { 0xfb, 0xff };
+
+/*
+ * These have to be protected by the irq controller spinlock
+ * before being called.
+ */
+static void shark_disable_8259A_irq(struct irq_data *d)
+{
+ unsigned int mask;
+ if (d->irq<8) {
+ mask = 1 << d->irq;
+ cached_irq_mask[0] |= mask;
+ outb(cached_irq_mask[1],0xA1);
+ } else {
+ mask = 1 << (d->irq-8);
+ cached_irq_mask[1] |= mask;
+ outb(cached_irq_mask[0],0x21);
+ }
+}
+
+static void shark_enable_8259A_irq(struct irq_data *d)
+{
+ unsigned int mask;
+ if (d->irq<8) {
+ mask = ~(1 << d->irq);
+ cached_irq_mask[0] &= mask;
+ outb(cached_irq_mask[0],0x21);
+ } else {
+ mask = ~(1 << (d->irq-8));
+ cached_irq_mask[1] &= mask;
+ outb(cached_irq_mask[1],0xA1);
+ }
+}
+
+static void shark_ack_8259A_irq(struct irq_data *d){}
+
+static irqreturn_t bogus_int(int irq, void *dev_id)
+{
+ printk("Got interrupt %i!\n",irq);
+ return IRQ_NONE;
+}
+
+static struct irqaction cascade;
+
+static struct irq_chip fb_chip = {
+ .name = "XT-PIC",
+ .irq_ack = shark_ack_8259A_irq,
+ .irq_mask = shark_disable_8259A_irq,
+ .irq_unmask = shark_enable_8259A_irq,
+};
+
+void __init shark_init_irq(void)
+{
+ int irq;
+
+ for (irq = 0; irq < NR_IRQS; irq++) {
+ irq_set_chip_and_handler(irq, &fb_chip, handle_edge_irq);
+ set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+ }
+
+ /* init master interrupt controller */
+ outb(0x11, 0x20); /* Start init sequence, edge triggered (level: 0x19)*/
+ outb(0x00, 0x21); /* Vector base */
+ outb(0x04, 0x21); /* Cascade (slave) on IRQ2 */
+ outb(0x03, 0x21); /* Select 8086 mode , auto eoi*/
+ outb(0x0A, 0x20);
+ /* init slave interrupt controller */
+ outb(0x11, 0xA0); /* Start init sequence, edge triggered */
+ outb(0x08, 0xA1); /* Vector base */
+ outb(0x02, 0xA1); /* Cascade (slave) on IRQ2 */
+ outb(0x03, 0xA1); /* Select 8086 mode, auto eoi */
+ outb(0x0A, 0xA0);
+ outb(cached_irq_mask[1],0xA1);
+ outb(cached_irq_mask[0],0x21);
+ //request_region(0x20,0x2,"pic1");
+ //request_region(0xA0,0x2,"pic2");
+
+ cascade.handler = bogus_int;
+ cascade.name = "cascade";
+ setup_irq(2,&cascade);
+}
+
diff --git a/arch/arm/mach-shark/leds.c b/arch/arm/mach-shark/leds.c
new file mode 100644
index 0000000..081c778
--- /dev/null
+++ b/arch/arm/mach-shark/leds.c
@@ -0,0 +1,117 @@
+/*
+ * DIGITAL Shark LED control routines.
+ *
+ * Driver for the 3 user LEDs found on the Shark
+ * Based on Versatile and RealView machine LED code
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ * Author: Bryan Wu <bryan.wu@canonical.com>
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/leds.h>
+
+#include <asm/mach-types.h>
+
+#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
+struct shark_led {
+ struct led_classdev cdev;
+ u8 mask;
+};
+
+/*
+ * The triggers lines up below will only be used if the
+ * LED triggers are compiled in.
+ */
+static const struct {
+ const char *name;
+ const char *trigger;
+} shark_leds[] = {
+ { "shark:amber0", "default-on", }, /* Bit 5 */
+ { "shark:green", "heartbeat", }, /* Bit 6 */
+ { "shark:amber1", "cpu0" }, /* Bit 7 */
+};
+
+static u16 led_reg_read(void)
+{
+ outw(0x09, 0x24);
+ return inw(0x26);
+}
+
+static void led_reg_write(u16 value)
+{
+ outw(0x09, 0x24);
+ outw(value, 0x26);
+}
+
+static void shark_led_set(struct led_classdev *cdev,
+ enum led_brightness b)
+{
+ struct shark_led *led = container_of(cdev,
+ struct shark_led, cdev);
+ u16 reg = led_reg_read();
+
+ if (b != LED_OFF)
+ reg |= led->mask;
+ else
+ reg &= ~led->mask;
+
+ led_reg_write(reg);
+}
+
+static enum led_brightness shark_led_get(struct led_classdev *cdev)
+{
+ struct shark_led *led = container_of(cdev,
+ struct shark_led, cdev);
+ u16 reg = led_reg_read();
+
+ return (reg & led->mask) ? LED_FULL : LED_OFF;
+}
+
+static int __init shark_leds_init(void)
+{
+ int i;
+ u16 reg;
+
+ if (!machine_is_shark())
+ return -ENODEV;
+
+ for (i = 0; i < ARRAY_SIZE(shark_leds); i++) {
+ struct shark_led *led;
+
+ led = kzalloc(sizeof(*led), GFP_KERNEL);
+ if (!led)
+ break;
+
+ led->cdev.name = shark_leds[i].name;
+ led->cdev.brightness_set = shark_led_set;
+ led->cdev.brightness_get = shark_led_get;
+ led->cdev.default_trigger = shark_leds[i].trigger;
+
+ /* Count in 5 bits offset */
+ led->mask = BIT(i + 5);
+
+ if (led_classdev_register(NULL, &led->cdev) < 0) {
+ kfree(led);
+ break;
+ }
+ }
+
+ /* Make LEDs independent of power-state */
+ request_region(0x24, 4, "led_reg");
+ reg = led_reg_read();
+ reg |= 1 << 10;
+ led_reg_write(reg);
+
+ return 0;
+}
+
+/*
+ * Since we may have triggers on any subsystem, defer registration
+ * until after subsystem_init.
+ */
+fs_initcall(shark_leds_init);
+#endif
diff --git a/arch/arm/mach-shark/pci.c b/arch/arm/mach-shark/pci.c
new file mode 100644
index 0000000..6d91a91
--- /dev/null
+++ b/arch/arm/mach-shark/pci.c
@@ -0,0 +1,57 @@
+/*
+ * linux/arch/arm/mach-shark/pci.c
+ *
+ * PCI bios-type initialisation for PCI machines
+ *
+ * Bits taken from various places.
+ */
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <video/vga.h>
+
+#include <asm/irq.h>
+#include <asm/mach/pci.h>
+#include <asm/mach-types.h>
+
+#define IO_START 0x40000000
+
+static int __init shark_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+ if (dev->bus->number == 0)
+ if (dev->devfn == 0)
+ return 255;
+ else
+ return 11;
+ else
+ return 255;
+}
+
+extern void __init via82c505_preinit(void);
+
+static struct hw_pci shark_pci __initdata = {
+ .setup = via82c505_setup,
+ .map_irq = shark_map_irq,
+ .nr_controllers = 1,
+ .ops = &via82c505_ops,
+ .preinit = via82c505_preinit,
+};
+
+static int __init shark_pci_init(void)
+{
+ if (!machine_is_shark())
+ return -ENODEV;
+
+ pcibios_min_io = 0x6000;
+ pcibios_min_mem = 0x50000000;
+ vga_base = 0xe8000000;
+
+ pci_ioremap_io(0, IO_START);
+
+ pci_common_init(&shark_pci);
+
+ return 0;
+}
+
+subsys_initcall(shark_pci_init);