diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/common/clkdev.c | 11 | ||||
| -rw-r--r-- | arch/arm/mach-imx/generic.c | 36 | ||||
| -rw-r--r-- | arch/arm/mach-mx2/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-mx2/devices.c | 2 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/system.h | 5 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/system.c (renamed from arch/arm/mach-mx2/system.c) | 50 |
7 files changed, 39 insertions, 69 deletions
diff --git a/arch/arm/common/clkdev.c b/arch/arm/common/clkdev.c index 1037bba1832..5589444ff43 100644 --- a/arch/arm/common/clkdev.c +++ b/arch/arm/common/clkdev.c @@ -62,9 +62,8 @@ static struct clk *clk_find(const char *dev_id, const char *con_id) return clk; } -struct clk *clk_get(struct device *dev, const char *con_id) +struct clk *clk_get_sys(const char *dev_id, const char *con_id) { - const char *dev_id = dev ? dev_name(dev) : NULL; struct clk *clk; mutex_lock(&clocks_mutex); @@ -75,6 +74,14 @@ struct clk *clk_get(struct device *dev, const char *con_id) return clk ? clk : ERR_PTR(-ENOENT); } +EXPORT_SYMBOL(clk_get_sys); + +struct clk *clk_get(struct device *dev, const char *con_id) +{ + const char *dev_id = dev ? dev_name(dev) : NULL; + + return clk_get_sys(dev_id, con_id); +} EXPORT_SYMBOL(clk_get); void clk_put(struct clk *clk) diff --git a/arch/arm/mach-imx/generic.c b/arch/arm/mach-imx/generic.c index 887cb21f75b..05f1739ee12 100644 --- a/arch/arm/mach-imx/generic.c +++ b/arch/arm/mach-imx/generic.c @@ -29,7 +29,6 @@ #include <linux/string.h> #include <asm/errno.h> -#include <mach/imxfb.h> #include <mach/hardware.h> #include <mach/imx-regs.h> @@ -245,43 +244,8 @@ void __init imx_set_mmc_info(struct imxmmc_platform_data *info) imx_mmc_device.dev.platform_data = info; } -static struct imx_fb_platform_data imx_fb_info; - -void __init set_imx_fb_info(struct imx_fb_platform_data *hard_imx_fb_info) -{ - memcpy(&imx_fb_info,hard_imx_fb_info,sizeof(struct imx_fb_platform_data)); -} - -static struct resource imxfb_resources[] = { - [0] = { - .start = 0x00205000, - .end = 0x002050FF, - .flags = IORESOURCE_MEM, - }, - [1] = { - .start = LCDC_INT, - .end = LCDC_INT, - .flags = IORESOURCE_IRQ, - }, -}; - -static u64 fb_dma_mask = ~(u64)0; - -static struct platform_device imxfb_device = { - .name = "imx-fb", - .id = 0, - .dev = { - .platform_data = &imx_fb_info, - .dma_mask = &fb_dma_mask, - .coherent_dma_mask = 0xffffffff, - }, - .num_resources = ARRAY_SIZE(imxfb_resources), - .resource = imxfb_resources, -}; - static struct platform_device *devices[] __initdata = { &imx_mmc_device, - &imxfb_device, }; static struct map_desc imx_io_desc[] __initdata = { diff --git a/arch/arm/mach-mx2/Makefile b/arch/arm/mach-mx2/Makefile index 6e1a2bffc81..950649a9154 100644 --- a/arch/arm/mach-mx2/Makefile +++ b/arch/arm/mach-mx2/Makefile @@ -4,7 +4,7 @@ # Object file lists. -obj-y := system.o generic.o devices.o serial.o +obj-y := generic.o devices.o serial.o obj-$(CONFIG_MACH_MX21) += clock_imx21.o diff --git a/arch/arm/mach-mx2/devices.c b/arch/arm/mach-mx2/devices.c index f81aa8a8fbb..a0f1b367432 100644 --- a/arch/arm/mach-mx2/devices.c +++ b/arch/arm/mach-mx2/devices.c @@ -229,7 +229,6 @@ struct platform_device mxc_nand_device = { .resource = mxc_nand_resources, }; -#ifdef CONFIG_FB_IMX /* * lcdc: * - i.MX1: the basic controller @@ -259,7 +258,6 @@ struct platform_device mxc_fb_device = { .coherent_dma_mask = 0xFFFFFFFF, }, }; -#endif #ifdef CONFIG_MACH_MX27 static struct resource mxc_fec_resources[] = { diff --git a/arch/arm/plat-mxc/Makefile b/arch/arm/plat-mxc/Makefile index 564fd4ebf38..055406312b6 100644 --- a/arch/arm/plat-mxc/Makefile +++ b/arch/arm/plat-mxc/Makefile @@ -3,7 +3,7 @@ # # Common support -obj-y := irq.o clock.o gpio.o time.o devices.o cpu.o +obj-y := irq.o clock.o gpio.o time.o devices.o cpu.o system.o obj-$(CONFIG_ARCH_MX1) += iomux-mx1-mx2.o dma-mx1-mx2.o obj-$(CONFIG_ARCH_MX2) += iomux-mx1-mx2.o dma-mx1-mx2.o diff --git a/arch/arm/plat-mxc/include/mach/system.h b/arch/arm/plat-mxc/include/mach/system.h index cd03ebaa49b..e56241af870 100644 --- a/arch/arm/plat-mxc/include/mach/system.h +++ b/arch/arm/plat-mxc/include/mach/system.h @@ -26,9 +26,6 @@ static inline void arch_idle(void) cpu_do_idle(); } -static inline void arch_reset(char mode, const char *cmd) -{ - cpu_reset(0); -} +void arch_reset(char mode, const char *cmd); #endif /* __ASM_ARCH_MXC_SYSTEM_H__ */ diff --git a/arch/arm/mach-mx2/system.c b/arch/arm/plat-mxc/system.c index 92c79d4bd16..79c37577c91 100644 --- a/arch/arm/mach-mx2/system.c +++ b/arch/arm/plat-mxc/system.c @@ -3,6 +3,7 @@ * Copyright (C) 2000 Deep Blue Solutions Ltd * Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved. * Copyright 2008 Juergen Beisert, kernel@pengutronix.de + * Copyright 2009 Ilya Yanok, Emcraft Systems Ltd, yanok@emcraft.com * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -22,42 +23,45 @@ #include <linux/kernel.h> #include <linux/clk.h> #include <linux/io.h> +#include <linux/err.h> +#include <linux/delay.h> #include <mach/hardware.h> #include <asm/proc-fns.h> #include <asm/system.h> -/* - * Put the CPU into idle mode. It is called by default_idle() - * in process.c file. - */ -void arch_idle(void) -{ - /* - * This should do all the clock switching - * and wait for interrupt tricks. - */ - cpu_do_idle(); -} - -#define WDOG_WCR_REG IO_ADDRESS(WDOG_BASE_ADDR) -#define WDOG_WCR_SRS (1 << 4) +#ifdef CONFIG_ARCH_MX1 +#define WDOG_WCR_REG IO_ADDRESS(WDT_BASE_ADDR) +#define WDOG_WCR_ENABLE (1 << 0) +#else +#define WDOG_WCR_REG IO_ADDRESS(WDOG_BASE_ADDR) +#define WDOG_WCR_ENABLE (1 << 2) +#endif /* * Reset the system. It is called by machine_restart(). */ void arch_reset(char mode, const char *cmd) { - struct clk *clk; + if (!cpu_is_mx1()) { + struct clk *clk; - clk = clk_get(NULL, "wdog_clk"); - if (!clk) { - printk(KERN_ERR"Cannot activate the watchdog. Giving up\n"); - return; + clk = clk_get_sys("imx-wdt.0", NULL); + if (!IS_ERR(clk)) + clk_enable(clk); } - clk_enable(clk); - /* Assert SRS signal */ - __raw_writew(__raw_readw(WDOG_WCR_REG) & ~WDOG_WCR_SRS, WDOG_WCR_REG); + __raw_writew(WDOG_WCR_ENABLE, WDOG_WCR_REG); + + /* wait for reset to assert... */ + mdelay(500); + + printk(KERN_ERR "Watchdog reset failed to assert reset\n"); + + /* delay to allow the serial port to show the message */ + mdelay(50); + + /* we'll take a jump through zero as a poor second */ + cpu_reset(0); } |