![Linus Torvalds](/assets/img/avatar_default.png)
A large number of cleanups, all over the platforms. This is dominated largely by the Samsung platforms (s3c, s5p, exynos) and a few of the others moving code out of arch/arm into more appropriate subsystems. The clocksource and irqchip drivers are now abstracted to the point where platforms that are already cleaned up do not need to even specify the driver they use, it can all get configured from the device tree as we do for normal device drivers. The clocksource changes basically touch every single platform in the process. We further clean up the use of platform specific header files here, with the goal of turning more of the platforms over to being "multiplatform" enabled, which implies that they cannot expose their headers to architecture independent code any more. It is expected that no functional changes are part of the cleanup. The overall reduction in total code lines is mostly the result of removing broken and obsolete code. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIVAwUAUSUyKmCrR//JCVInAQIN8RAAnb/uPytmlMjn5yCksF4Mvb/FVbn/TVwz KRIGpCHOzyKK1q7pM8NRUVWfjW2SZqbXJFqx6zBGKSlDPvFTOhsLyyupU+Tnyu5W IX4eIUBwb+a6H7XDHw0X2YI8uHzi5RNLhne0A1QyDKcnuHs1LDAttXnJHaK4Ap6Y NN2YFt3l3ld7DXWXJtMsw5v8lC10aeIFGTvXefaPDAdeMLivmI57qEUMDXknNr7W Odz/Rc0/cw3BNBVl/zNHA0jw7FOjKAymCYYNUa4xDCJEr+JnIRTqizd0N/YIIC7x aA2xjJ3oKUFyF51yiJE6nFuTyJznhwtehc+uiMOSIkjrPLym52LEHmd7G5Yqlmjz oiei09qBb870q3lGxwfht9iaeIwYgQFYGfD0yW5QWArCO5pxhtCPLPH7YZNZtcQd ZJRSGGqT/ljBz3bm0K9OLESeeTTN7+Nxvtpiz/CD+Piegz0gWJzDYJRTzkJ3UWpA WTVhVQdWUeX2JrNkgM7Z3Tu8iXOe+LIEs7kVXGJZSREmIIZiRvR36UrODZtAkp9I 7YQ+srX/uaR832pgK0RrHK0zY0psU6MmIvhYxJZFbx7keiPA9eH6drb0x7tGqcUD FzEUzvcZvyqppndfBi+R60H/YKAhJDEXdwxzo6dyCpPQaW1T9GnzIqXuE1zin+Aw X7Y8YywMbHI= =DvgJ -----END PGP SIGNATURE----- Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC cleanups from Arnd Bergmann: "A large number of cleanups, all over the platforms. This is dominated largely by the Samsung platforms (s3c, s5p, exynos) and a few of the others moving code out of arch/arm into more appropriate subsystems. The clocksource and irqchip drivers are now abstracted to the point where platforms that are already cleaned up do not need to even specify the driver they use, it can all get configured from the device tree as we do for normal device drivers. The clocksource changes basically touch every single platform in the process. We further clean up the use of platform specific header files here, with the goal of turning more of the platforms over to being "multiplatform" enabled, which implies that they cannot expose their headers to architecture independent code any more. It is expected that no functional changes are part of the cleanup. The overall reduction in total code lines is mostly the result of removing broken and obsolete code." * tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (133 commits) ARM: mvebu: correct gated clock documentation ARM: kirkwood: add missing include for nsa310 ARM: exynos: move exynos4210-combiner to drivers/irqchip mfd: db8500-prcmu: update resource passing drivers/db8500-cpufreq: delete dangling include ARM: at91: remove NEOCORE 926 board sunxi: Cleanup the reset code and add meaningful registers defines ARM: S3C24XX: header mach/regs-mem.h local ARM: S3C24XX: header mach/regs-power.h local ARM: S3C24XX: header mach/regs-s3c2412-mem.h local ARM: S3C24XX: Remove plat-s3c24xx directory in arch/arm/ ARM: S3C24XX: transform s3c2443 subirqs into new structure ARM: S3C24XX: modify s3c2443 irq init to initialize all irqs ARM: S3C24XX: move s3c2443 irq code to irq.c ARM: S3C24XX: transform s3c2416 irqs into new structure ARM: S3C24XX: modify s3c2416 irq init to initialize all irqs ARM: S3C24XX: move s3c2416 irq init to common irq code ARM: S3C24XX: Modify s3c_irq_wake to use the hwirq property ARM: S3C24XX: Move irq syscore-ops to irq-pm clocksource: always define CLOCKSOURCE_OF_DECLARE ...
633 lines
15 KiB
C
633 lines
15 KiB
C
/*
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* linux/arch/arm/mach-sa1100/assabet.c
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*
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* Author: Nicolas Pitre
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*
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* This file contains all Assabet-specific tweaks.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/errno.h>
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#include <linux/ioport.h>
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#include <linux/platform_data/sa11x0-serial.h>
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#include <linux/serial_core.h>
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#include <linux/platform_device.h>
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#include <linux/mfd/ucb1x00.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/delay.h>
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#include <linux/mm.h>
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#include <linux/leds.h>
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#include <linux/slab.h>
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#include <video/sa1100fb.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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#include <asm/setup.h>
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#include <asm/page.h>
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#include <asm/pgtable-hwdef.h>
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#include <asm/pgtable.h>
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#include <asm/tlbflush.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/flash.h>
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#include <asm/mach/irda.h>
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#include <asm/mach/map.h>
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#include <mach/assabet.h>
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#include <linux/platform_data/mfd-mcp-sa11x0.h>
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#include <mach/irqs.h>
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#include "generic.h"
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#define ASSABET_BCR_DB1110 \
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(ASSABET_BCR_SPK_OFF | \
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ASSABET_BCR_LED_GREEN | ASSABET_BCR_LED_RED | \
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ASSABET_BCR_RS232EN | ASSABET_BCR_LCD_12RGB | \
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ASSABET_BCR_IRDA_MD0)
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#define ASSABET_BCR_DB1111 \
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(ASSABET_BCR_SPK_OFF | \
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ASSABET_BCR_LED_GREEN | ASSABET_BCR_LED_RED | \
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ASSABET_BCR_RS232EN | ASSABET_BCR_LCD_12RGB | \
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ASSABET_BCR_CF_BUS_OFF | ASSABET_BCR_STEREO_LB | \
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ASSABET_BCR_IRDA_MD0 | ASSABET_BCR_CF_RST)
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unsigned long SCR_value = ASSABET_SCR_INIT;
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EXPORT_SYMBOL(SCR_value);
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static unsigned long BCR_value = ASSABET_BCR_DB1110;
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void ASSABET_BCR_frob(unsigned int mask, unsigned int val)
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{
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unsigned long flags;
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local_irq_save(flags);
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BCR_value = (BCR_value & ~mask) | val;
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ASSABET_BCR = BCR_value;
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local_irq_restore(flags);
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}
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EXPORT_SYMBOL(ASSABET_BCR_frob);
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static void assabet_ucb1x00_reset(enum ucb1x00_reset state)
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{
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if (state == UCB_RST_PROBE)
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ASSABET_BCR_set(ASSABET_BCR_CODEC_RST);
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}
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/*
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* Assabet flash support code.
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*/
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#ifdef ASSABET_REV_4
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/*
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* Phase 4 Assabet has two 28F160B3 flash parts in bank 0:
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*/
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static struct mtd_partition assabet_partitions[] = {
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{
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.name = "bootloader",
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.size = 0x00020000,
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.offset = 0,
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.mask_flags = MTD_WRITEABLE,
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}, {
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.name = "bootloader params",
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.size = 0x00020000,
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.offset = MTDPART_OFS_APPEND,
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.mask_flags = MTD_WRITEABLE,
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}, {
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.name = "jffs",
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.size = MTDPART_SIZ_FULL,
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.offset = MTDPART_OFS_APPEND,
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}
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};
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#else
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/*
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* Phase 5 Assabet has two 28F128J3A flash parts in bank 0:
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*/
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static struct mtd_partition assabet_partitions[] = {
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{
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.name = "bootloader",
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.size = 0x00040000,
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.offset = 0,
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.mask_flags = MTD_WRITEABLE,
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}, {
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.name = "bootloader params",
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.size = 0x00040000,
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.offset = MTDPART_OFS_APPEND,
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.mask_flags = MTD_WRITEABLE,
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}, {
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.name = "jffs",
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.size = MTDPART_SIZ_FULL,
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.offset = MTDPART_OFS_APPEND,
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}
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};
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#endif
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static struct flash_platform_data assabet_flash_data = {
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.map_name = "cfi_probe",
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.parts = assabet_partitions,
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.nr_parts = ARRAY_SIZE(assabet_partitions),
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};
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static struct resource assabet_flash_resources[] = {
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DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
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DEFINE_RES_MEM(SA1100_CS1_PHYS, SZ_32M),
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};
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/*
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* Assabet IrDA support code.
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*/
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static int assabet_irda_set_power(struct device *dev, unsigned int state)
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{
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static unsigned int bcr_state[4] = {
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ASSABET_BCR_IRDA_MD0,
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ASSABET_BCR_IRDA_MD1|ASSABET_BCR_IRDA_MD0,
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ASSABET_BCR_IRDA_MD1,
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0
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};
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if (state < 4) {
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state = bcr_state[state];
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ASSABET_BCR_clear(state ^ (ASSABET_BCR_IRDA_MD1|
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ASSABET_BCR_IRDA_MD0));
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ASSABET_BCR_set(state);
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}
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return 0;
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}
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static void assabet_irda_set_speed(struct device *dev, unsigned int speed)
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{
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if (speed < 4000000)
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ASSABET_BCR_clear(ASSABET_BCR_IRDA_FSEL);
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else
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ASSABET_BCR_set(ASSABET_BCR_IRDA_FSEL);
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}
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static struct irda_platform_data assabet_irda_data = {
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.set_power = assabet_irda_set_power,
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.set_speed = assabet_irda_set_speed,
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};
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static struct ucb1x00_plat_data assabet_ucb1x00_data = {
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.reset = assabet_ucb1x00_reset,
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.gpio_base = -1,
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};
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static struct mcp_plat_data assabet_mcp_data = {
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.mccr0 = MCCR0_ADM,
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.sclk_rate = 11981000,
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.codec_pdata = &assabet_ucb1x00_data,
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};
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static void assabet_lcd_set_visual(u32 visual)
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{
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u_int is_true_color = visual == FB_VISUAL_TRUECOLOR;
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if (machine_is_assabet()) {
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#if 1 // phase 4 or newer Assabet's
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if (is_true_color)
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ASSABET_BCR_set(ASSABET_BCR_LCD_12RGB);
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else
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ASSABET_BCR_clear(ASSABET_BCR_LCD_12RGB);
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#else
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// older Assabet's
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if (is_true_color)
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ASSABET_BCR_clear(ASSABET_BCR_LCD_12RGB);
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else
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ASSABET_BCR_set(ASSABET_BCR_LCD_12RGB);
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#endif
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}
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}
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#ifndef ASSABET_PAL_VIDEO
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static void assabet_lcd_backlight_power(int on)
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{
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if (on)
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ASSABET_BCR_set(ASSABET_BCR_LIGHT_ON);
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else
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ASSABET_BCR_clear(ASSABET_BCR_LIGHT_ON);
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}
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/*
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* Turn on/off the backlight. When turning the backlight on, we wait
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* 500us after turning it on so we don't cause the supplies to droop
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* when we enable the LCD controller (and cause a hard reset.)
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*/
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static void assabet_lcd_power(int on)
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{
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if (on) {
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ASSABET_BCR_set(ASSABET_BCR_LCD_ON);
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udelay(500);
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} else
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ASSABET_BCR_clear(ASSABET_BCR_LCD_ON);
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}
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/*
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* The assabet uses a sharp LQ039Q2DS54 LCD module. It is actually
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* takes an RGB666 signal, but we provide it with an RGB565 signal
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* instead (def_rgb_16).
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*/
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static struct sa1100fb_mach_info lq039q2ds54_info = {
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.pixclock = 171521, .bpp = 16,
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.xres = 320, .yres = 240,
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.hsync_len = 5, .vsync_len = 1,
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.left_margin = 61, .upper_margin = 3,
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.right_margin = 9, .lower_margin = 0,
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.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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.lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
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.lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
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.backlight_power = assabet_lcd_backlight_power,
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.lcd_power = assabet_lcd_power,
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.set_visual = assabet_lcd_set_visual,
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};
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#else
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static void assabet_pal_backlight_power(int on)
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{
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ASSABET_BCR_clear(ASSABET_BCR_LIGHT_ON);
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}
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static void assabet_pal_power(int on)
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{
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ASSABET_BCR_clear(ASSABET_BCR_LCD_ON);
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}
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static struct sa1100fb_mach_info pal_info = {
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.pixclock = 67797, .bpp = 16,
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.xres = 640, .yres = 512,
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.hsync_len = 64, .vsync_len = 6,
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.left_margin = 125, .upper_margin = 70,
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.right_margin = 115, .lower_margin = 36,
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.lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
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.lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(512),
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.backlight_power = assabet_pal_backlight_power,
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.lcd_power = assabet_pal_power,
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.set_visual = assabet_lcd_set_visual,
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};
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#endif
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#ifdef CONFIG_ASSABET_NEPONSET
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static struct resource neponset_resources[] = {
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DEFINE_RES_MEM(0x10000000, 0x08000000),
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DEFINE_RES_MEM(0x18000000, 0x04000000),
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DEFINE_RES_MEM(0x40000000, SZ_8K),
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DEFINE_RES_IRQ(IRQ_GPIO25),
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};
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#endif
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static void __init assabet_init(void)
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{
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/*
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* Ensure that the power supply is in "high power" mode.
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*/
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GPSR = GPIO_GPIO16;
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GPDR |= GPIO_GPIO16;
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/*
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* Ensure that these pins are set as outputs and are driving
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* logic 0. This ensures that we won't inadvertently toggle
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* the WS latch in the CPLD, and we don't float causing
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* excessive power drain. --rmk
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*/
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GPCR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM;
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GPDR |= GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM;
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/*
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* Also set GPIO27 as an output; this is used to clock UART3
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* via the FPGA and as otherwise has no pullups or pulldowns,
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* so stop it floating.
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*/
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GPCR = GPIO_GPIO27;
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GPDR |= GPIO_GPIO27;
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/*
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* Set up registers for sleep mode.
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*/
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PWER = PWER_GPIO0;
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PGSR = 0;
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PCFR = 0;
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PSDR = 0;
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PPDR |= PPC_TXD3 | PPC_TXD1;
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PPSR |= PPC_TXD3 | PPC_TXD1;
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sa11x0_ppc_configure_mcp();
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if (machine_has_neponset()) {
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/*
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* Angel sets this, but other bootloaders may not.
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*
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* This must precede any driver calls to BCR_set()
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* or BCR_clear().
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*/
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ASSABET_BCR = BCR_value = ASSABET_BCR_DB1111;
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#ifndef CONFIG_ASSABET_NEPONSET
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printk( "Warning: Neponset detected but full support "
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"hasn't been configured in the kernel\n" );
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#else
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platform_device_register_simple("neponset", 0,
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neponset_resources, ARRAY_SIZE(neponset_resources));
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#endif
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}
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#ifndef ASSABET_PAL_VIDEO
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sa11x0_register_lcd(&lq039q2ds54_info);
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#else
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sa11x0_register_lcd(&pal_video);
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#endif
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sa11x0_register_mtd(&assabet_flash_data, assabet_flash_resources,
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ARRAY_SIZE(assabet_flash_resources));
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sa11x0_register_irda(&assabet_irda_data);
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sa11x0_register_mcp(&assabet_mcp_data);
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}
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/*
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* On Assabet, we must probe for the Neponset board _before_
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* paging_init() has occurred to actually determine the amount
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* of RAM available. To do so, we map the appropriate IO section
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* in the page table here in order to access GPIO registers.
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*/
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static void __init map_sa1100_gpio_regs( void )
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{
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unsigned long phys = __PREG(GPLR) & PMD_MASK;
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unsigned long virt = (unsigned long)io_p2v(phys);
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int prot = PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_DOMAIN(DOMAIN_IO);
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pmd_t *pmd;
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pmd = pmd_offset(pud_offset(pgd_offset_k(virt), virt), virt);
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*pmd = __pmd(phys | prot);
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flush_pmd_entry(pmd);
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}
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/*
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* Read System Configuration "Register"
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* (taken from "Intel StrongARM SA-1110 Microprocessor Development Board
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* User's Guide", section 4.4.1)
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*
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* This same scan is performed in arch/arm/boot/compressed/head-sa1100.S
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* to set up the serial port for decompression status messages. We
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* repeat it here because the kernel may not be loaded as a zImage, and
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* also because it's a hassle to communicate the SCR value to the kernel
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* from the decompressor.
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*
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* Note that IRQs are guaranteed to be disabled.
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*/
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static void __init get_assabet_scr(void)
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{
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unsigned long uninitialized_var(scr), i;
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GPDR |= 0x3fc; /* Configure GPIO 9:2 as outputs */
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GPSR = 0x3fc; /* Write 0xFF to GPIO 9:2 */
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GPDR &= ~(0x3fc); /* Configure GPIO 9:2 as inputs */
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for(i = 100; i--; ) /* Read GPIO 9:2 */
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scr = GPLR;
|
|
GPDR |= 0x3fc; /* restore correct pin direction */
|
|
scr &= 0x3fc; /* save as system configuration byte. */
|
|
SCR_value = scr;
|
|
}
|
|
|
|
static void __init
|
|
fixup_assabet(struct tag *tags, char **cmdline, struct meminfo *mi)
|
|
{
|
|
/* This must be done before any call to machine_has_neponset() */
|
|
map_sa1100_gpio_regs();
|
|
get_assabet_scr();
|
|
|
|
if (machine_has_neponset())
|
|
printk("Neponset expansion board detected\n");
|
|
}
|
|
|
|
|
|
static void assabet_uart_pm(struct uart_port *port, u_int state, u_int oldstate)
|
|
{
|
|
if (port->mapbase == _Ser1UTCR0) {
|
|
if (state)
|
|
ASSABET_BCR_clear(ASSABET_BCR_RS232EN |
|
|
ASSABET_BCR_COM_RTS |
|
|
ASSABET_BCR_COM_DTR);
|
|
else
|
|
ASSABET_BCR_set(ASSABET_BCR_RS232EN |
|
|
ASSABET_BCR_COM_RTS |
|
|
ASSABET_BCR_COM_DTR);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Assabet uses COM_RTS and COM_DTR for both UART1 (com port)
|
|
* and UART3 (radio module). We only handle them for UART1 here.
|
|
*/
|
|
static void assabet_set_mctrl(struct uart_port *port, u_int mctrl)
|
|
{
|
|
if (port->mapbase == _Ser1UTCR0) {
|
|
u_int set = 0, clear = 0;
|
|
|
|
if (mctrl & TIOCM_RTS)
|
|
clear |= ASSABET_BCR_COM_RTS;
|
|
else
|
|
set |= ASSABET_BCR_COM_RTS;
|
|
|
|
if (mctrl & TIOCM_DTR)
|
|
clear |= ASSABET_BCR_COM_DTR;
|
|
else
|
|
set |= ASSABET_BCR_COM_DTR;
|
|
|
|
ASSABET_BCR_clear(clear);
|
|
ASSABET_BCR_set(set);
|
|
}
|
|
}
|
|
|
|
static u_int assabet_get_mctrl(struct uart_port *port)
|
|
{
|
|
u_int ret = 0;
|
|
u_int bsr = ASSABET_BSR;
|
|
|
|
/* need 2 reads to read current value */
|
|
bsr = ASSABET_BSR;
|
|
|
|
if (port->mapbase == _Ser1UTCR0) {
|
|
if (bsr & ASSABET_BSR_COM_DCD)
|
|
ret |= TIOCM_CD;
|
|
if (bsr & ASSABET_BSR_COM_CTS)
|
|
ret |= TIOCM_CTS;
|
|
if (bsr & ASSABET_BSR_COM_DSR)
|
|
ret |= TIOCM_DSR;
|
|
} else if (port->mapbase == _Ser3UTCR0) {
|
|
if (bsr & ASSABET_BSR_RAD_DCD)
|
|
ret |= TIOCM_CD;
|
|
if (bsr & ASSABET_BSR_RAD_CTS)
|
|
ret |= TIOCM_CTS;
|
|
if (bsr & ASSABET_BSR_RAD_DSR)
|
|
ret |= TIOCM_DSR;
|
|
if (bsr & ASSABET_BSR_RAD_RI)
|
|
ret |= TIOCM_RI;
|
|
} else {
|
|
ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static struct sa1100_port_fns assabet_port_fns __initdata = {
|
|
.set_mctrl = assabet_set_mctrl,
|
|
.get_mctrl = assabet_get_mctrl,
|
|
.pm = assabet_uart_pm,
|
|
};
|
|
|
|
static struct map_desc assabet_io_desc[] __initdata = {
|
|
{ /* Board Control Register */
|
|
.virtual = 0xf1000000,
|
|
.pfn = __phys_to_pfn(0x12000000),
|
|
.length = 0x00100000,
|
|
.type = MT_DEVICE
|
|
}, { /* MQ200 */
|
|
.virtual = 0xf2800000,
|
|
.pfn = __phys_to_pfn(0x4b800000),
|
|
.length = 0x00800000,
|
|
.type = MT_DEVICE
|
|
}
|
|
};
|
|
|
|
static void __init assabet_map_io(void)
|
|
{
|
|
sa1100_map_io();
|
|
iotable_init(assabet_io_desc, ARRAY_SIZE(assabet_io_desc));
|
|
|
|
/*
|
|
* Set SUS bit in SDCR0 so serial port 1 functions.
|
|
* Its called GPCLKR0 in my SA1110 manual.
|
|
*/
|
|
Ser1SDCR0 |= SDCR0_SUS;
|
|
|
|
if (!machine_has_neponset())
|
|
sa1100_register_uart_fns(&assabet_port_fns);
|
|
|
|
/*
|
|
* When Neponset is attached, the first UART should be
|
|
* UART3. That's what Angel is doing and many documents
|
|
* are stating this.
|
|
*
|
|
* We do the Neponset mapping even if Neponset support
|
|
* isn't compiled in so the user will still get something on
|
|
* the expected physical serial port.
|
|
*
|
|
* We no longer do this; not all boot loaders support it,
|
|
* and UART3 appears to be somewhat unreliable with blob.
|
|
*/
|
|
sa1100_register_uart(0, 1);
|
|
sa1100_register_uart(2, 3);
|
|
}
|
|
|
|
/* LEDs */
|
|
#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
|
|
struct assabet_led {
|
|
struct led_classdev cdev;
|
|
u32 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;
|
|
} assabet_leds[] = {
|
|
{ "assabet:red", "cpu0",},
|
|
{ "assabet:green", "heartbeat", },
|
|
};
|
|
|
|
/*
|
|
* The LED control in Assabet is reversed:
|
|
* - setting bit means turn off LED
|
|
* - clearing bit means turn on LED
|
|
*/
|
|
static void assabet_led_set(struct led_classdev *cdev,
|
|
enum led_brightness b)
|
|
{
|
|
struct assabet_led *led = container_of(cdev,
|
|
struct assabet_led, cdev);
|
|
|
|
if (b != LED_OFF)
|
|
ASSABET_BCR_clear(led->mask);
|
|
else
|
|
ASSABET_BCR_set(led->mask);
|
|
}
|
|
|
|
static enum led_brightness assabet_led_get(struct led_classdev *cdev)
|
|
{
|
|
struct assabet_led *led = container_of(cdev,
|
|
struct assabet_led, cdev);
|
|
|
|
return (ASSABET_BCR & led->mask) ? LED_OFF : LED_FULL;
|
|
}
|
|
|
|
static int __init assabet_leds_init(void)
|
|
{
|
|
int i;
|
|
|
|
if (!machine_is_assabet())
|
|
return -ENODEV;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(assabet_leds); i++) {
|
|
struct assabet_led *led;
|
|
|
|
led = kzalloc(sizeof(*led), GFP_KERNEL);
|
|
if (!led)
|
|
break;
|
|
|
|
led->cdev.name = assabet_leds[i].name;
|
|
led->cdev.brightness_set = assabet_led_set;
|
|
led->cdev.brightness_get = assabet_led_get;
|
|
led->cdev.default_trigger = assabet_leds[i].trigger;
|
|
|
|
if (!i)
|
|
led->mask = ASSABET_BCR_LED_RED;
|
|
else
|
|
led->mask = ASSABET_BCR_LED_GREEN;
|
|
|
|
if (led_classdev_register(NULL, &led->cdev) < 0) {
|
|
kfree(led);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Since we may have triggers on any subsystem, defer registration
|
|
* until after subsystem_init.
|
|
*/
|
|
fs_initcall(assabet_leds_init);
|
|
#endif
|
|
|
|
MACHINE_START(ASSABET, "Intel-Assabet")
|
|
.atag_offset = 0x100,
|
|
.fixup = fixup_assabet,
|
|
.map_io = assabet_map_io,
|
|
.nr_irqs = SA1100_NR_IRQS,
|
|
.init_irq = sa1100_init_irq,
|
|
.init_time = sa1100_timer_init,
|
|
.init_machine = assabet_init,
|
|
.init_late = sa11x0_init_late,
|
|
#ifdef CONFIG_SA1111
|
|
.dma_zone_size = SZ_1M,
|
|
#endif
|
|
.restart = sa11x0_restart,
|
|
MACHINE_END
|