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öʱgpio pullup/pulldown ЧͶʱVCCIOġ

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xsf@rock-chips.com
2011-04-26 19:14:31 +08:00
committed by xsf@rock-chips.com
parent 374350cea9
commit 99e3aa8104
1 changed files with 36 additions and 0 deletions
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36
arch/arm/mach-rk29/pm.c
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@@ -27,6 +27,11 @@
#include <mach/ddr.h>
#include <mach/memtester.h>
#include <mach/iomux.h>
#define grf_readl(offset) readl(RK29_GRF_BASE + offset)
#define grf_writel(v, offset) do { writel(v, RK29_GRF_BASE + offset); readl(RK29_GRF_BASE + offset); } while (0)
static unsigned long save_sp;
static inline void delay_500ns(void)
@@ -350,6 +355,7 @@ static int rk29_pm_enter(suspend_state_t state)
{
u32 apll, cpll, gpll, mode, clksel0;
u32 clkgate[4];
u32 gpio0_pull,gpio1_pull,gpio2_pull,gpio3_pull,gpio4_pull,gpio5_pull,gpio6_pull;
// memory teseter
if (ddr_debug == 3)
@@ -428,9 +434,39 @@ static int rk29_pm_enter(suspend_state_t state)
cru_writel(clksel0 & ~0x7FC000, CRU_CLKSEL0_CON);
printch('4');
/*pullup/pulldown*/
gpio0_pull = grf_readl(GRF_GPIO0_PULL);
gpio1_pull = grf_readl(GRF_GPIO1_PULL);
gpio2_pull = grf_readl(GRF_GPIO2_PULL);
gpio3_pull = grf_readl(GRF_GPIO3_PULL);
gpio4_pull = grf_readl(GRF_GPIO4_PULL);
gpio5_pull = grf_readl(GRF_GPIO5_PULL);
gpio6_pull = grf_readl(GRF_GPIO6_PULL);
grf_writel(0xffffffff,GRF_GPIO0_PULL);
grf_writel(0xffffffff,GRF_GPIO1_PULL);
grf_writel(0xffffffff,GRF_GPIO2_PULL);
grf_writel(0xffffffff,GRF_GPIO3_PULL);
grf_writel(0xffffffff,GRF_GPIO4_PULL);
grf_writel(0xffffffff,GRF_GPIO5_PULL);
grf_writel(gpio6_pull|0x0fffffff,GRF_GPIO6_PULL);
rk29_suspend();
printch('4');
/*resusme pullup/pulldown*/
grf_writel(gpio0_pull,GRF_GPIO0_PULL);
grf_writel(gpio1_pull,GRF_GPIO1_PULL);
grf_writel(gpio2_pull,GRF_GPIO2_PULL);
grf_writel(gpio3_pull,GRF_GPIO3_PULL);
grf_writel(gpio4_pull,GRF_GPIO4_PULL);
grf_writel(gpio5_pull,GRF_GPIO5_PULL);
grf_writel(gpio6_pull,GRF_GPIO6_PULL);
/* resume general pll */
cru_writel(gpll, CRU_GPLL_CON);
delay_300us();