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-rw-r--r--arch/arm/mach-shark/Makefile4
-rw-r--r--arch/arm/mach-shark/core.c19
-rw-r--r--arch/arm/mach-shark/include/mach/debug-macro.S7
-rw-r--r--arch/arm/mach-shark/include/mach/entry-macro.S3
-rw-r--r--arch/arm/mach-shark/include/mach/io.h18
-rw-r--r--arch/arm/mach-shark/leds.c220
-rw-r--r--arch/arm/mach-shark/pci.c5
7 files changed, 98 insertions, 178 deletions
diff --git a/arch/arm/mach-shark/Makefile b/arch/arm/mach-shark/Makefile
index 45be9b04e7b..29657183c45 100644
--- a/arch/arm/mach-shark/Makefile
+++ b/arch/arm/mach-shark/Makefile
@@ -4,9 +4,7 @@
# Object file lists.
-obj-y := core.o dma.o irq.o pci.o
+obj-y := core.o dma.o irq.o pci.o leds.o
obj-m :=
obj-n :=
obj- :=
-
-obj-$(CONFIG_LEDS) += leds.o
diff --git a/arch/arm/mach-shark/core.c b/arch/arm/mach-shark/core.c
index 2704bcd869c..9ad2e9737fb 100644
--- a/arch/arm/mach-shark/core.c
+++ b/arch/arm/mach-shark/core.c
@@ -13,7 +13,6 @@
#include <asm/setup.h>
#include <asm/mach-types.h>
-#include <asm/leds.h>
#include <asm/param.h>
#include <asm/system_misc.h>
@@ -21,9 +20,6 @@
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
-#define IO_BASE 0xe0000000
-#define IO_SIZE 0x08000000
-#define IO_START 0x40000000
#define ROMCARD_SIZE 0x08000000
#define ROMCARD_START 0x10000000
@@ -104,20 +100,6 @@ arch_initcall(shark_init);
extern void shark_init_irq(void);
-static struct map_desc shark_io_desc[] __initdata = {
- {
- .virtual = IO_BASE,
- .pfn = __phys_to_pfn(IO_START),
- .length = IO_SIZE,
- .type = 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)
@@ -158,7 +140,6 @@ static void shark_init_early(void)
MACHINE_START(SHARK, "Shark")
/* Maintainer: Alexander Schulz */
.atag_offset = 0x3000,
- .map_io = shark_map_io,
.init_early = shark_init_early,
.init_irq = shark_init_irq,
.timer = &shark_timer,
diff --git a/arch/arm/mach-shark/include/mach/debug-macro.S b/arch/arm/mach-shark/include/mach/debug-macro.S
index 20eb2bf2a42..d129119a3f6 100644
--- a/arch/arm/mach-shark/include/mach/debug-macro.S
+++ b/arch/arm/mach-shark/include/mach/debug-macro.S
@@ -12,9 +12,10 @@
*/
.macro addruart, rp, rv, tmp
- mov \rp, #0xe0000000
- orr \rp, \rp, #0x000003f8
- mov \rv, \rp
+ mov \rp, #0x3f8
+ orr \rv, \rp, #0xfe000000
+ orr \rv, \rv, #0x00e00000
+ orr \rp, \rp, #0x40000000
.endm
.macro senduart,rd,rx
diff --git a/arch/arm/mach-shark/include/mach/entry-macro.S b/arch/arm/mach-shark/include/mach/entry-macro.S
index 5901b09fc96..c9e49f04953 100644
--- a/arch/arm/mach-shark/include/mach/entry-macro.S
+++ b/arch/arm/mach-shark/include/mach/entry-macro.S
@@ -8,7 +8,8 @@
* warranty of any kind, whether express or implied.
*/
.macro get_irqnr_preamble, base, tmp
- mov \base, #0xe0000000
+ mov \base, #0xfe000000
+ orr \base, \base, #0x00e00000
.endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
diff --git a/arch/arm/mach-shark/include/mach/io.h b/arch/arm/mach-shark/include/mach/io.h
deleted file mode 100644
index 1a45fc01ff1..00000000000
--- a/arch/arm/mach-shark/include/mach/io.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- * arch/arm/mach-shark/include/mach/io.h
- *
- * by Alexander Schulz
- *
- * derived from:
- * arch/arm/mach-ebsa110/include/mach/io.h
- * Copyright (C) 1997,1998 Russell King
- */
-
-#ifndef __ASM_ARM_ARCH_IO_H
-#define __ASM_ARM_ARCH_IO_H
-
-#define IO_SPACE_LIMIT 0xffffffff
-
-#define __io(a) ((void __iomem *)(0xe0000000 + (a)))
-
-#endif
diff --git a/arch/arm/mach-shark/leds.c b/arch/arm/mach-shark/leds.c
index 25609076921..081c778a10a 100644
--- a/arch/arm/mach-shark/leds.c
+++ b/arch/arm/mach-shark/leds.c
@@ -1,165 +1,117 @@
/*
- * arch/arm/mach-shark/leds.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
+ * Driver for the 3 user LEDs found on the Shark
+ * Based on Versatile and RealView machine LED code
*
- * Changelog:
+ * License terms: GNU General Public License (GPL) version 2
+ * Author: Bryan Wu <bryan.wu@canonical.com>
*/
#include <linux/kernel.h>
-#include <linux/module.h>
#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/ioport.h>
#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/slab.h>
+#include <linux/leds.h>
-#include <asm/leds.h>
+#include <asm/mach-types.h>
-#define LED_STATE_ENABLED 1
-#define LED_STATE_CLAIMED 2
+#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
+struct shark_led {
+ struct led_classdev cdev;
+ u8 mask;
+};
-#define SEQUOIA_LED_GREEN (1<<6)
-#define SEQUOIA_LED_AMBER (1<<5)
-#define SEQUOIA_LED_BACK (1<<7)
+/*
+ * 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 char led_state;
-static short hw_led_state;
-static short saved_state;
+static void led_reg_write(u16 value)
+{
+ outw(0x09, 0x24);
+ outw(value, 0x26);
+}
-static DEFINE_RAW_SPINLOCK(leds_lock);
+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();
-short sequoia_read(int addr) {
- outw(addr,0x24);
- return inw(0x26);
-}
+ if (b != LED_OFF)
+ reg |= led->mask;
+ else
+ reg &= ~led->mask;
-void sequoia_write(short value,short addr) {
- outw(addr,0x24);
- outw(value,0x26);
+ led_reg_write(reg);
}
-static void sequoia_leds_event(led_event_t evt)
+static enum led_brightness shark_led_get(struct led_classdev *cdev)
{
- unsigned long flags;
-
- raw_spin_lock_irqsave(&leds_lock, flags);
+ struct shark_led *led = container_of(cdev,
+ struct shark_led, cdev);
+ u16 reg = led_reg_read();
- hw_led_state = sequoia_read(0x09);
+ return (reg & led->mask) ? LED_FULL : LED_OFF;
+}
- 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
+static int __init shark_leds_init(void)
+{
+ int i;
+ u16 reg;
-#ifdef CONFIG_LEDS_CPU
- case led_idle_start:
- if (!(led_state & LED_STATE_CLAIMED))
- hw_led_state &= ~SEQUOIA_LED_BACK;
- break;
+ if (!machine_is_shark())
+ return -ENODEV;
- case led_idle_end:
- if (!(led_state & LED_STATE_CLAIMED))
- hw_led_state |= SEQUOIA_LED_BACK;
- break;
-#endif
+ for (i = 0; i < ARRAY_SIZE(shark_leds); i++) {
+ struct shark_led *led;
- 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;
- }
+ led = kzalloc(sizeof(*led), GFP_KERNEL);
+ if (!led)
+ break;
- if (led_state & LED_STATE_ENABLED)
- sequoia_write(hw_led_state,0x09);
+ 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;
- raw_spin_unlock_irqrestore(&leds_lock, flags);
-}
+ /* Count in 5 bits offset */
+ led->mask = BIT(i + 5);
-static int __init leds_init(void)
-{
- extern void (*leds_event)(led_event_t);
- short temp;
-
- leds_event = sequoia_leds_event;
+ if (led_classdev_register(NULL, &led->cdev) < 0) {
+ kfree(led);
+ break;
+ }
+ }
/* 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);
+ request_region(0x24, 4, "led_reg");
+ reg = led_reg_read();
+ reg |= 1 << 10;
+ led_reg_write(reg);
+
return 0;
}
-__initcall(leds_init);
+/*
+ * 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
index 9089407d532..b8b4ab323a3 100644
--- a/arch/arm/mach-shark/pci.c
+++ b/arch/arm/mach-shark/pci.c
@@ -8,12 +8,15 @@
#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)
@@ -44,6 +47,8 @@ static int __init shark_pci_init(void)
pcibios_min_mem = 0x50000000;
vga_base = 0xe8000000;
+ pci_ioremap_io(0, IO_START);
+
pci_common_init(&shark_pci);
return 0;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-02 20:56:02 +0000