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author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2009-09-12 13:02:26 +0200 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-09-12 13:02:26 +0200 |
commit | ddd559b13f6d2fe3ad68c4b3f5235fd3c2eae4e3 (patch) | |
tree | d827bca3fc825a0ac33efbcd493713be40fcc812 /arch/arm/mach-mxc91231/system.c | |
parent | Merge branches 'arm', 'at91', 'bcmring', 'ep93xx', 'mach-types', 'misc' and '... (diff) | |
parent | ARM: 5636/1: Move vendor enum to AMBA include (diff) | |
download | linux-ddd559b13f6d2fe3ad68c4b3f5235fd3c2eae4e3.tar.xz linux-ddd559b13f6d2fe3ad68c4b3f5235fd3c2eae4e3.zip |
Merge branch 'devel-stable' into devel
Conflicts:
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arch/arm/mm/fault.c
Diffstat (limited to 'arch/arm/mach-mxc91231/system.c')
-rw-r--r-- | arch/arm/mach-mxc91231/system.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/arm/mach-mxc91231/system.c b/arch/arm/mach-mxc91231/system.c new file mode 100644 index 000000000000..736f7efd874a --- /dev/null +++ b/arch/arm/mach-mxc91231/system.c @@ -0,0 +1,51 @@ +/* + * Copyright 2009 Dmitriy Taychenachev <dimichxp@gmail.com> + * + * This file is released under the GPLv2 or later. + */ + +#include <linux/delay.h> +#include <linux/io.h> + +#include <asm/proc-fns.h> +#include <mach/hardware.h> + +#include "crm_regs.h" + +#define WDOG_WCR MXC91231_IO_ADDRESS(MXC91231_WDOG1_BASE_ADDR) +#define WDOG_WCR_OUT_ENABLE (1 << 6) +#define WDOG_WCR_ASSERT (1 << 5) + +void mxc91231_power_off(void) +{ + u16 wcr; + + wcr = __raw_readw(WDOG_WCR); + wcr |= WDOG_WCR_OUT_ENABLE; + wcr &= ~WDOG_WCR_ASSERT; + __raw_writew(wcr, WDOG_WCR); +} + +void mxc91231_arch_reset(char mode, const char *cmd) +{ + u32 amcr; + + /* Reset the AP using CRM */ + amcr = __raw_readl(MXC_CRMAP_AMCR); + amcr &= ~MXC_CRMAP_AMCR_SW_AP; + __raw_writel(amcr, MXC_CRMAP_AMCR); + + mdelay(10); + cpu_reset(0); +} + +void mxc91231_prepare_idle(void) +{ + u32 crm_ctl; + + /* Go to WAIT mode after WFI */ + crm_ctl = __raw_readl(MXC_DSM_CRM_CONTROL); + crm_ctl &= ~(MXC_DSM_CRM_CTRL_LPMD0 | MXC_DSM_CRM_CTRL_LPMD1); + crm_ctl |= MXC_DSM_CRM_CTRL_LPMD_WAIT_MODE; + __raw_writel(crm_ctl, MXC_DSM_CRM_CONTROL); +} |