mirror of https://gitee.com/openkylin/linux.git
52 lines
1.0 KiB
C
52 lines
1.0 KiB
C
/*
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* Copyright 2009 Dmitriy Taychenachev <dimichxp@gmail.com>
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*
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* This file is released under the GPLv2 or later.
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*/
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#include <linux/delay.h>
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#include <linux/io.h>
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#include <asm/proc-fns.h>
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#include <mach/hardware.h>
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#include "crm_regs.h"
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#define WDOG_WCR MXC91231_IO_ADDRESS(MXC91231_WDOG1_BASE_ADDR)
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#define WDOG_WCR_OUT_ENABLE (1 << 6)
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#define WDOG_WCR_ASSERT (1 << 5)
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void mxc91231_power_off(void)
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{
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u16 wcr;
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wcr = __raw_readw(WDOG_WCR);
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wcr |= WDOG_WCR_OUT_ENABLE;
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wcr &= ~WDOG_WCR_ASSERT;
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__raw_writew(wcr, WDOG_WCR);
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}
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void mxc91231_arch_reset(char mode, const char *cmd)
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{
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u32 amcr;
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/* Reset the AP using CRM */
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amcr = __raw_readl(MXC_CRMAP_AMCR);
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amcr &= ~MXC_CRMAP_AMCR_SW_AP;
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__raw_writel(amcr, MXC_CRMAP_AMCR);
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mdelay(10);
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cpu_reset(0);
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}
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void mxc91231_prepare_idle(void)
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{
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u32 crm_ctl;
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/* Go to WAIT mode after WFI */
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crm_ctl = __raw_readl(MXC_DSM_CRM_CONTROL);
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crm_ctl &= ~(MXC_DSM_CRM_CTRL_LPMD0 | MXC_DSM_CRM_CTRL_LPMD1);
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crm_ctl |= MXC_DSM_CRM_CTRL_LPMD_WAIT_MODE;
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__raw_writel(crm_ctl, MXC_DSM_CRM_CONTROL);
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}
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