diff options
Diffstat (limited to 'arch/arm/mach-shark')
| -rw-r--r-- | arch/arm/mach-shark/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm/mach-shark/core.c | 19 | ||||
| -rw-r--r-- | arch/arm/mach-shark/include/mach/debug-macro.S | 7 | ||||
| -rw-r--r-- | arch/arm/mach-shark/include/mach/entry-macro.S | 3 | ||||
| -rw-r--r-- | arch/arm/mach-shark/include/mach/io.h | 18 | ||||
| -rw-r--r-- | arch/arm/mach-shark/leds.c | 220 | ||||
| -rw-r--r-- | arch/arm/mach-shark/pci.c | 5 |
7 files changed, 98 insertions, 178 deletions
diff --git a/arch/arm/mach-shark/Makefile b/arch/arm/mach-shark/Makefile index 45be9b0..2965718 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 2704bcd..9ad2e97 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 20eb2bf..d129119 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 5901b09..c9e49f0 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 1a45fc0..0000000 --- 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 2560907..081c778 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 9089407..b8b4ab3 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; |