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-rw-r--r--arch/arm/mach-shark/Makefile12
-rw-r--r--arch/arm/mach-shark/Makefile.boot2
-rw-r--r--arch/arm/mach-shark/core.c114
-rw-r--r--arch/arm/mach-shark/dma.c22
-rw-r--r--arch/arm/mach-shark/irq.c109
-rw-r--r--arch/arm/mach-shark/leds.c163
-rw-r--r--arch/arm/mach-shark/pci.c42
7 files changed, 464 insertions, 0 deletions
diff --git a/arch/arm/mach-shark/Makefile b/arch/arm/mach-shark/Makefile
new file mode 100644
index 000000000000..45be9b04e7ba
--- /dev/null
+++ b/arch/arm/mach-shark/Makefile
@@ -0,0 +1,12 @@
+#
+# Makefile for the linux kernel.
+#
+
+# Object file lists.
+
+obj-y := core.o dma.o irq.o pci.o
+obj-m :=
+obj-n :=
+obj- :=
+
+obj-$(CONFIG_LEDS) += leds.o
diff --git a/arch/arm/mach-shark/Makefile.boot b/arch/arm/mach-shark/Makefile.boot
new file mode 100644
index 000000000000..4320f8b92771
--- /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 000000000000..a9bc5d0dbd85
--- /dev/null
+++ b/arch/arm/mach-shark/core.c
@@ -0,0 +1,114 @@
+/*
+ * linux/arch/arm/mach-shark/arch.c
+ *
+ * Architecture specific stuff.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/serial_8250.h>
+
+#include <asm/setup.h>
+#include <asm/mach-types.h>
+#include <asm/io.h>
+#include <asm/leds.h>
+#include <asm/param.h>
+
+#include <asm/mach/map.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+
+static struct plat_serial8250_port serial_platform_data[] = {
+ {
+ .iobase = 0x3f8,
+ .irq = 4,
+ .uartclk = 1843200,
+ .regshift = 2,
+ .iotype = UPIO_PORT,
+ .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+ },
+ {
+ .iobase = 0x2f8,
+ .irq = 3,
+ .uartclk = 1843200,
+ .regshift = 2,
+ .iotype = UPIO_PORT,
+ .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
+ },
+ { },
+};
+
+static struct platform_device serial_device = {
+ .name = "serial8250",
+ .id = 0,
+ .dev = {
+ .platform_data = serial_platform_data,
+ },
+};
+
+static int __init shark_init(void)
+{
+ int ret;
+
+ if (machine_is_shark())
+ ret = platform_device_register(&serial_device);
+
+ return ret;
+}
+
+arch_initcall(shark_init);
+
+extern void shark_init_irq(void);
+
+static struct map_desc shark_io_desc[] __initdata = {
+ { IO_BASE , IO_START , IO_SIZE , MT_DEVICE }
+};
+
+static void __init shark_map_io(void)
+{
+ iotable_init(shark_io_desc, ARRAY_SIZE(shark_io_desc));
+}
+
+#define IRQ_TIMER 0
+#define HZ_TIME ((1193180 + HZ/2) / HZ)
+
+static irqreturn_t
+shark_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+{
+ write_seqlock(&xtime_lock);
+ timer_tick(regs);
+ write_sequnlock(&xtime_lock);
+ return IRQ_HANDLED;
+}
+
+static struct irqaction shark_timer_irq = {
+ .name = "Shark Timer Tick",
+ .flags = SA_INTERRUPT,
+ .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 struct sys_timer shark_timer = {
+ .init = shark_timer_init,
+};
+
+MACHINE_START(SHARK, "Shark")
+ MAINTAINER("Alexander Schulz")
+ BOOT_MEM(0x08000000, 0x40000000, 0xe0000000)
+ BOOT_PARAMS(0x08003000)
+ MAPIO(shark_map_io)
+ INITIRQ(shark_init_irq)
+ .timer = &shark_timer,
+MACHINE_END
diff --git a/arch/arm/mach-shark/dma.c b/arch/arm/mach-shark/dma.c
new file mode 100644
index 000000000000..835989a02918
--- /dev/null
+++ b/arch/arm/mach-shark/dma.c
@@ -0,0 +1,22 @@
+/*
+ * 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/config.h>
+#include <linux/init.h>
+
+#include <asm/dma.h>
+#include <asm/mach/dma.h>
+
+void __init arch_dma_init(dma_t *dma)
+{
+#ifdef CONFIG_ISA_DMA
+ isa_init_dma(dma);
+#endif
+}
diff --git a/arch/arm/mach-shark/irq.c b/arch/arm/mach-shark/irq.c
new file mode 100644
index 000000000000..6cb67bd3dfd3
--- /dev/null
+++ b/arch/arm/mach-shark/irq.c
@@ -0,0 +1,109 @@
+/*
+ * linux/arch/arm/mach-shark/irq.c
+ *
+ * by Alexander Schulz
+ *
+ * derived from linux/arch/ppc/kernel/i8259.c and:
+ * include/asm-arm/arch-ebsa110/irq.h
+ * Copyright (C) 1996-1998 Russell King
+ */
+
+#include <linux/init.h>
+#include <linux/fs.h>
+#include <linux/ptrace.h>
+#include <linux/interrupt.h>
+
+#include <asm/irq.h>
+#include <asm/io.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(unsigned int irq)
+{
+ unsigned int mask;
+ if (irq<8) {
+ mask = 1 << irq;
+ cached_irq_mask[0] |= mask;
+ outb(cached_irq_mask[1],0xA1);
+ } else {
+ mask = 1 << (irq-8);
+ cached_irq_mask[1] |= mask;
+ outb(cached_irq_mask[0],0x21);
+ }
+}
+
+static void shark_enable_8259A_irq(unsigned int irq)
+{
+ unsigned int mask;
+ if (irq<8) {
+ mask = ~(1 << irq);
+ cached_irq_mask[0] &= mask;
+ outb(cached_irq_mask[0],0x21);
+ } else {
+ mask = ~(1 << (irq-8));
+ cached_irq_mask[1] &= mask;
+ outb(cached_irq_mask[1],0xA1);
+ }
+}
+
+static void shark_ack_8259A_irq(unsigned int irq){}
+
+static irqreturn_t bogus_int(int irq, void *dev_id, struct pt_regs *regs)
+{
+ printk("Got interrupt %i!\n",irq);
+ return IRQ_NONE;
+}
+
+static struct irqaction cascade;
+
+static struct irqchip fb_chip = {
+ .ack = shark_ack_8259A_irq,
+ .mask = shark_disable_8259A_irq,
+ .unmask = shark_enable_8259A_irq,
+};
+
+void __init shark_init_irq(void)
+{
+ int irq;
+
+ for (irq = 0; irq < NR_IRQS; irq++) {
+ set_irq_chip(irq, &fb_chip);
+ set_irq_handler(irq, do_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 000000000000..7bdeb70a0c10
--- /dev/null
+++ b/arch/arm/mach-shark/leds.c
@@ -0,0 +1,163 @@
+/*
+ * arch/arm/kernel/leds-shark.c
+ * by Alexander Schulz
+ *
+ * derived from:
+ * arch/arm/kernel/leds-footbridge.c
+ * Copyright (C) 1998-1999 Russell King
+ *
+ * DIGITAL Shark LED control routines.
+ *
+ * The leds use is as follows:
+ * - Green front - toggles state every 50 timer interrupts
+ * - Amber front - Unused, this is a dual color led (Amber/Green)
+ * - Amber back - On if system is not idle
+ *
+ * Changelog:
+ */
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/ioport.h>
+
+#include <asm/hardware.h>
+#include <asm/leds.h>
+#include <asm/io.h>
+#include <asm/system.h>
+
+#define LED_STATE_ENABLED 1
+#define LED_STATE_CLAIMED 2
+static char led_state;
+static short hw_led_state;
+static short saved_state;
+
+static DEFINE_SPINLOCK(leds_lock);
+
+short sequoia_read(int addr) {
+ outw(addr,0x24);
+ return inw(0x26);
+}
+
+void sequoia_write(short value,short addr) {
+ outw(addr,0x24);
+ outw(value,0x26);
+}
+
+static void sequoia_leds_event(led_event_t evt)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&leds_lock, flags);
+
+ hw_led_state = sequoia_read(0x09);
+
+ switch (evt) {
+ case led_start:
+ hw_led_state |= SEQUOIA_LED_GREEN;
+ hw_led_state |= SEQUOIA_LED_AMBER;
+#ifdef CONFIG_LEDS_CPU
+ hw_led_state |= SEQUOIA_LED_BACK;
+#else
+ hw_led_state &= ~SEQUOIA_LED_BACK;
+#endif
+ led_state |= LED_STATE_ENABLED;
+ break;
+
+ case led_stop:
+ hw_led_state &= ~SEQUOIA_LED_BACK;
+ hw_led_state |= SEQUOIA_LED_GREEN;
+ hw_led_state |= SEQUOIA_LED_AMBER;
+ led_state &= ~LED_STATE_ENABLED;
+ break;
+
+ case led_claim:
+ led_state |= LED_STATE_CLAIMED;
+ saved_state = hw_led_state;
+ hw_led_state &= ~SEQUOIA_LED_BACK;
+ hw_led_state |= SEQUOIA_LED_GREEN;
+ hw_led_state |= SEQUOIA_LED_AMBER;
+ break;
+
+ case led_release:
+ led_state &= ~LED_STATE_CLAIMED;
+ hw_led_state = saved_state;
+ break;
+
+#ifdef CONFIG_LEDS_TIMER
+ case led_timer:
+ if (!(led_state & LED_STATE_CLAIMED))
+ hw_led_state ^= SEQUOIA_LED_GREEN;
+ break;
+#endif
+
+#ifdef CONFIG_LEDS_CPU
+ case led_idle_start:
+ if (!(led_state & LED_STATE_CLAIMED))
+ hw_led_state &= ~SEQUOIA_LED_BACK;
+ break;
+
+ case led_idle_end:
+ if (!(led_state & LED_STATE_CLAIMED))
+ hw_led_state |= SEQUOIA_LED_BACK;
+ break;
+#endif
+
+ case led_green_on:
+ if (led_state & LED_STATE_CLAIMED)
+ hw_led_state &= ~SEQUOIA_LED_GREEN;
+ break;
+
+ case led_green_off:
+ if (led_state & LED_STATE_CLAIMED)
+ hw_led_state |= SEQUOIA_LED_GREEN;
+ break;
+
+ case led_amber_on:
+ if (led_state & LED_STATE_CLAIMED)
+ hw_led_state &= ~SEQUOIA_LED_AMBER;
+ break;
+
+ case led_amber_off:
+ if (led_state & LED_STATE_CLAIMED)
+ hw_led_state |= SEQUOIA_LED_AMBER;
+ break;
+
+ case led_red_on:
+ if (led_state & LED_STATE_CLAIMED)
+ hw_led_state |= SEQUOIA_LED_BACK;
+ break;
+
+ case led_red_off:
+ if (led_state & LED_STATE_CLAIMED)
+ hw_led_state &= ~SEQUOIA_LED_BACK;
+ break;
+
+ default:
+ break;
+ }
+
+ if (led_state & LED_STATE_ENABLED)
+ sequoia_write(hw_led_state,0x09);
+
+ spin_unlock_irqrestore(&leds_lock, flags);
+}
+
+static int __init leds_init(void)
+{
+ extern void (*leds_event)(led_event_t);
+ short temp;
+
+ leds_event = sequoia_leds_event;
+
+ /* Make LEDs independent of power-state */
+ request_region(0x24,4,"sequoia");
+ temp = sequoia_read(0x09);
+ temp |= 1<<10;
+ sequoia_write(temp,0x09);
+ leds_event(led_start);
+ return 0;
+}
+
+__initcall(leds_init);
diff --git a/arch/arm/mach-shark/pci.c b/arch/arm/mach-shark/pci.c
new file mode 100644
index 000000000000..37a7112d4117
--- /dev/null
+++ b/arch/arm/mach-shark/pci.c
@@ -0,0 +1,42 @@
+/*
+ * 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 <asm/irq.h>
+#include <asm/mach/pci.h>
+#include <asm/mach-types.h>
+
+static int __init shark_map_irq(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,
+ .swizzle = pci_std_swizzle,
+ .map_irq = shark_map_irq,
+ .nr_controllers = 1,
+ .scan = via82c505_scan_bus,
+ .preinit = via82c505_preinit,
+};
+
+static int __init shark_pci_init(void)
+{
+ if (machine_is_shark())
+ pci_common_init(&shark_pci);
+ return 0;
+}
+
+subsys_initcall(shark_pci_init);