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Diffstat (limited to 'arch/arm/mach-imx/mm-imx3.c')
-rw-r--r--arch/arm/mach-imx/mm-imx3.c32
1 files changed, 28 insertions, 4 deletions
diff --git a/arch/arm/mach-imx/mm-imx3.c b/arch/arm/mach-imx/mm-imx3.c
index 0884ca90d15a..7638a35b3b36 100644
--- a/arch/arm/mach-imx/mm-imx3.c
+++ b/arch/arm/mach-imx/mm-imx3.c
@@ -19,6 +19,7 @@
#include <linux/mm.h>
#include <linux/init.h>
#include <linux/err.h>
+#include <linux/io.h>
#include <linux/pinctrl/machine.h>
#include <asm/pgtable.h>
@@ -38,8 +39,6 @@ static void imx3_idle(void)
{
unsigned long reg = 0;
- mx3_cpu_lp_set(MX3_WAIT);
-
__asm__ __volatile__(
/* disable I and D cache */
"mrc p15, 0, %0, c1, c0, 0\n"
@@ -135,11 +134,20 @@ void __init mx31_map_io(void)
iotable_init(mx31_io_desc, ARRAY_SIZE(mx31_io_desc));
}
+static void imx31_idle(void)
+{
+ int reg = imx_readl(mx3_ccm_base + MXC_CCM_CCMR);
+ reg &= ~MXC_CCM_CCMR_LPM_MASK;
+ imx_writel(reg, mx3_ccm_base + MXC_CCM_CCMR);
+
+ imx3_idle();
+}
+
void __init imx31_init_early(void)
{
mxc_set_cpu_type(MXC_CPU_MX31);
arch_ioremap_caller = imx3_ioremap_caller;
- arm_pm_idle = imx3_idle;
+ arm_pm_idle = imx31_idle;
mx3_ccm_base = MX31_IO_ADDRESS(MX31_CCM_BASE_ADDR);
}
@@ -167,6 +175,10 @@ static const struct resource imx31_audmux_res[] __initconst = {
DEFINE_RES_MEM(MX31_AUDMUX_BASE_ADDR, SZ_16K),
};
+static const struct resource imx31_rnga_res[] __initconst = {
+ DEFINE_RES_MEM(MX31_RNGA_BASE_ADDR, SZ_16K),
+};
+
void __init imx31_soc_init(void)
{
int to_version = mx31_revision() >> 4;
@@ -195,6 +207,8 @@ void __init imx31_soc_init(void)
platform_device_register_simple("imx31-audmux", 0, imx31_audmux_res,
ARRAY_SIZE(imx31_audmux_res));
+ platform_device_register_simple("mxc_rnga", -1, imx31_rnga_res,
+ ARRAY_SIZE(imx31_rnga_res));
}
#endif /* ifdef CONFIG_SOC_IMX31 */
@@ -212,11 +226,21 @@ void __init mx35_map_io(void)
iotable_init(mx35_io_desc, ARRAY_SIZE(mx35_io_desc));
}
+static void imx35_idle(void)
+{
+ int reg = imx_readl(mx3_ccm_base + MXC_CCM_CCMR);
+ reg &= ~MXC_CCM_CCMR_LPM_MASK;
+ reg |= MXC_CCM_CCMR_LPM_WAIT_MX35;
+ imx_writel(reg, mx3_ccm_base + MXC_CCM_CCMR);
+
+ imx3_idle();
+}
+
void __init imx35_init_early(void)
{
mxc_set_cpu_type(MXC_CPU_MX35);
mxc_iomux_v3_init(MX35_IO_ADDRESS(MX35_IOMUXC_BASE_ADDR));
- arm_pm_idle = imx3_idle;
+ arm_pm_idle = imx35_idle;
arch_ioremap_caller = imx3_ioremap_caller;
mx3_ccm_base = MX35_IO_ADDRESS(MX35_CCM_BASE_ADDR);
}