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rk29: vpu: add reset and unreset when power on

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This commit is contained in:
陈恒明
2010-12-29 18:39:13 -08:00
parent 49bd71ae2f
commit 3ae2a264c1
1 changed files with 15 additions and 4 deletions
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19
arch/arm/mach-rk29/vpu.c
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@@ -39,6 +39,8 @@
#include <mach/vpu.h>
#include <mach/rk29_iomap.h>
#include <mach/pmu.h>
#include <mach/cru.h>
#define DEC_INTERRUPT_REGISTER 1
#define PP_INTERRUPT_REGISTER 60
@@ -100,28 +102,37 @@ static void vpu_put_clk(void)
static void vpu_power_on(void)
{
pr_debug("power on\n");
printk("power on\n");
if (client.enabled)
return;
pr_debug("power domain on\n");
printk("power domain on\n");
pmu_set_power_domain(PD_VCODEC, true);
udelay(10);
clk_enable(aclk_vepu);
clk_enable(hclk_vepu);
clk_enable(aclk_ddr_vepu);
clk_enable(hclk_cpu_vcodec);
udelay(10);
writel( (1<<27), RK29_CRU_BASE + CRU_SOFTRST0_CON );
writel( (1<<19), RK29_CRU_BASE + CRU_SOFTRST2_CON );
writel( (1<<18), RK29_CRU_BASE + CRU_SOFTRST2_CON );
writel( (1<<15), RK29_CRU_BASE + CRU_SOFTRST2_CON );
udelay(10);
writel( 0, RK29_CRU_BASE + CRU_SOFTRST0_CON );
writel( 0, RK29_CRU_BASE + CRU_SOFTRST2_CON );
client.enabled = true;
}
static void vpu_power_off(void)
{
pr_debug("power off\n");
printk("power off\n");
if (!client.enabled)
return;
clk_disable(hclk_cpu_vcodec);
clk_disable(aclk_ddr_vepu);
clk_disable(hclk_vepu);
clk_disable(aclk_vepu);
pr_debug("power domain off\n");
printk("power domain off\n");
pmu_set_power_domain(PD_VCODEC, false);
client.enabled = false;
}