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rk3368: support cpu suspend to wfi

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Signed-off-by: chenjh <chenjh@rock-chips.com>
This commit is contained in:
chenjh
2015-03-18 15:30:32 +08:00
committed by Huang, Tao
parent c102973198
commit c066069b1d
2 changed files with 39 additions and 1 deletions
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18
arch/arm/mach-rockchip/rockchip_pm.c
View File

@@ -11,7 +11,6 @@
#include <asm/io.h>
#include "pm.h"
#ifdef CONFIG_ARM
/*************************dump reg********************************************/
void rkpm_ddr_reg_offset_dump(void __iomem * base_addr,u32 _offset)
@@ -403,6 +402,8 @@ void rkpm_ddr_printhex(unsigned int hex)
hex <<= 4;
}
}
#ifdef CONFIG_ARM
void rk_sram_suspend(void)
{
RKPM_DDR_FUN(regs_pread);
@@ -438,6 +439,8 @@ static int rk_lpmode_enter(unsigned long arg)
}
int cpu_suspend(unsigned long arg, int (*fn)(unsigned long));
#endif /* CONFIG_ARM */
static int rkpm_enter(suspend_state_t state)
{
//static u32 test_count=0;
@@ -478,6 +481,7 @@ static int rkpm_enter(suspend_state_t state)
rkpm_ddr_printch('5');
#ifdef CONFIG_ARM
if(rkpm_chk_jdg_ctrbits(RKPM_CTRBITS_SOC_DLPMD))
{
if(cpu_suspend(0,rk_lpmode_enter)==0)
@@ -497,6 +501,10 @@ static int rkpm_enter(suspend_state_t state)
dsb();
wfi();
}
#else
flush_cache_all();
cpu_suspend(1);
#endif
rkpm_ddr_printch('5');
@@ -568,6 +576,14 @@ void __init rockchip_suspend_init(void)
suspend_set_ops(&rockchip_suspend_ops);
return;
}
#ifndef CONFIG_ARM
static int __init rockchip_init_suspend(void)
{
suspend_set_ops(&rockchip_suspend_ops);
return 0;
}
late_initcall_sync(rockchip_init_suspend);
#endif /* CONFIG_ARM */
static enum rockchip_pm_policy pm_policy;

22
arch/arm64/boot/dts/rk3368.dtsi
View File

@@ -37,53 +37,72 @@
#address-cells = <2>;
#size-cells = <0>;
idle-states {
entry-method = "arm,psci";
CPU_SLEEP_0: cpu-sleep-0 {
compatible = "arm,idle-state";
arm,psci-suspend-param = <0x0000000>;
entry-latency-us = <10000000>;
exit-latency-us = <10000000>;
min-residency-us = <25000>;
};
};
little0: cpu@100 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x100>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
};
little1: cpu@101 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x101>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
};
little2: cpu@102 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x102>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
};
little3: cpu@103 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x103>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
};
big0: cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x0>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
};
big1: cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x1>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
};
big2: cpu@2 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x2>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
};
big3: cpu@3 {
device_type = "cpu";
compatible = "arm,cortex-a53", "arm,armv8";
reg = <0x0 0x3>;
enable-method = "psci";
cpu-idle-states = <&CPU_SLEEP_0>;
};
cpu-map {
@@ -122,6 +141,8 @@
compatible = "arm,psci";
method = "smc";
cpu_on = <0xC4000003>;
cpu_suspend = <0x84000001>;
cpu_off = <0x84000002>;
};
gic: interrupt-controller@ffb70000 {
@@ -582,6 +603,7 @@
<&clk_gates12 5>,/*aclk_intmem0*/
<&clk_gates12 4>,/*aclk_intmem*/
<&clk_gates13 9>,/*aclk_gic400*/
<&clk_gates12 9>,/*hclk_rom*/
/*PD_ALIVE*/
<&clk_gates22 13>,/*pclk_timer1*/