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Diffstat (limited to 'arch/arm/mach-imx/pm-imx6.c')
-rw-r--r--arch/arm/mach-imx/pm-imx6.c67
1 files changed, 60 insertions, 7 deletions
diff --git a/arch/arm/mach-imx/pm-imx6.c b/arch/arm/mach-imx/pm-imx6.c
index 9392a8f4ef24..5c3af8f993d0 100644
--- a/arch/arm/mach-imx/pm-imx6.c
+++ b/arch/arm/mach-imx/pm-imx6.c
@@ -129,6 +129,14 @@ static const u32 imx6sl_mmdc_io_offset[] __initconst = {
0x330, 0x334, 0x320, /* SDCKE0, SDCKE1, RESET */
};
+static const u32 imx6sx_mmdc_io_offset[] __initconst = {
+ 0x2ec, 0x2f0, 0x2f4, 0x2f8, /* DQM0 ~ DQM3 */
+ 0x60c, 0x610, 0x61c, 0x620, /* GPR_B0DS ~ GPR_B3DS */
+ 0x300, 0x2fc, 0x32c, 0x5f4, /* CAS, RAS, SDCLK_0, GPR_ADDS */
+ 0x310, 0x314, 0x5f8, 0x608, /* SODT0, SODT1, MODE_CTL, MODE */
+ 0x330, 0x334, 0x338, 0x33c, /* SDQS0 ~ SDQS3 */
+};
+
static const struct imx6_pm_socdata imx6q_pm_data __initconst = {
.cpu_type = MXC_CPU_IMX6Q,
.mmdc_compat = "fsl,imx6q-mmdc",
@@ -159,6 +167,16 @@ static const struct imx6_pm_socdata imx6sl_pm_data __initconst = {
.mmdc_io_offset = imx6sl_mmdc_io_offset,
};
+static const struct imx6_pm_socdata imx6sx_pm_data __initconst = {
+ .cpu_type = MXC_CPU_IMX6SX,
+ .mmdc_compat = "fsl,imx6sx-mmdc",
+ .src_compat = "fsl,imx6sx-src",
+ .iomuxc_compat = "fsl,imx6sx-iomuxc",
+ .gpc_compat = "fsl,imx6sx-gpc",
+ .mmdc_io_num = ARRAY_SIZE(imx6sx_mmdc_io_offset),
+ .mmdc_io_offset = imx6sx_mmdc_io_offset,
+};
+
/*
* This structure is for passing necessary data for low level ocram
* suspend code(arch/arm/mach-imx/suspend-imx6.S), if this struct
@@ -181,11 +199,13 @@ struct imx6_cpu_pm_info {
u32 mmdc_io_val[MX6_MAX_MMDC_IO_NUM][2]; /* To save offset and value */
} __aligned(8);
-void imx6q_set_int_mem_clk_lpm(void)
+void imx6q_set_int_mem_clk_lpm(bool enable)
{
u32 val = readl_relaxed(ccm_base + CGPR);
- val |= BM_CGPR_INT_MEM_CLK_LPM;
+ val &= ~BM_CGPR_INT_MEM_CLK_LPM;
+ if (enable)
+ val |= BM_CGPR_INT_MEM_CLK_LPM;
writel_relaxed(val, ccm_base + CGPR);
}
@@ -254,6 +274,14 @@ int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
break;
case STOP_POWER_ON:
val |= 0x2 << BP_CLPCR_LPM;
+ val &= ~BM_CLPCR_VSTBY;
+ val &= ~BM_CLPCR_SBYOS;
+ if (cpu_is_imx6sl())
+ val |= BM_CLPCR_BYPASS_PMIC_READY;
+ if (cpu_is_imx6sl() || cpu_is_imx6sx())
+ val |= BM_CLPCR_BYP_MMDC_CH0_LPM_HS;
+ else
+ val |= BM_CLPCR_BYP_MMDC_CH1_LPM_HS;
break;
case WAIT_UNCLOCKED_POWER_OFF:
val |= 0x1 << BP_CLPCR_LPM;
@@ -265,12 +293,12 @@ int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
val |= 0x3 << BP_CLPCR_STBY_COUNT;
val |= BM_CLPCR_VSTBY;
val |= BM_CLPCR_SBYOS;
- if (cpu_is_imx6sl()) {
+ if (cpu_is_imx6sl())
val |= BM_CLPCR_BYPASS_PMIC_READY;
+ if (cpu_is_imx6sl() || cpu_is_imx6sx())
val |= BM_CLPCR_BYP_MMDC_CH0_LPM_HS;
- } else {
+ else
val |= BM_CLPCR_BYP_MMDC_CH1_LPM_HS;
- }
break;
default:
return -EINVAL;
@@ -314,8 +342,22 @@ static int imx6q_suspend_finish(unsigned long val)
static int imx6q_pm_enter(suspend_state_t state)
{
switch (state) {
+ case PM_SUSPEND_STANDBY:
+ imx6q_set_lpm(STOP_POWER_ON);
+ imx6q_set_int_mem_clk_lpm(true);
+ imx_gpc_pre_suspend(false);
+ if (cpu_is_imx6sl())
+ imx6sl_set_wait_clk(true);
+ /* Zzz ... */
+ cpu_do_idle();
+ if (cpu_is_imx6sl())
+ imx6sl_set_wait_clk(false);
+ imx_gpc_post_resume();
+ imx6q_set_lpm(WAIT_CLOCKED);
+ break;
case PM_SUSPEND_MEM:
imx6q_set_lpm(STOP_POWER_OFF);
+ imx6q_set_int_mem_clk_lpm(false);
imx6q_enable_wb(true);
/*
* For suspend into ocram, asm code already take care of
@@ -323,7 +365,7 @@ static int imx6q_pm_enter(suspend_state_t state)
*/
if (!imx6_suspend_in_ocram_fn)
imx6q_enable_rbc(true);
- imx_gpc_pre_suspend();
+ imx_gpc_pre_suspend(true);
imx_anatop_pre_suspend();
imx_set_cpu_jump(0, v7_cpu_resume);
/* Zzz ... */
@@ -334,6 +376,7 @@ static int imx6q_pm_enter(suspend_state_t state)
imx_gpc_post_resume();
imx6q_enable_rbc(false);
imx6q_enable_wb(false);
+ imx6q_set_int_mem_clk_lpm(true);
imx6q_set_lpm(WAIT_CLOCKED);
break;
default:
@@ -343,9 +386,14 @@ static int imx6q_pm_enter(suspend_state_t state)
return 0;
}
+static int imx6q_pm_valid(suspend_state_t state)
+{
+ return (state == PM_SUSPEND_STANDBY || state == PM_SUSPEND_MEM);
+}
+
static const struct platform_suspend_ops imx6q_pm_ops = {
.enter = imx6q_pm_enter,
- .valid = suspend_valid_only_mem,
+ .valid = imx6q_pm_valid,
};
void __init imx6q_pm_set_ccm_base(void __iomem *base)
@@ -549,3 +597,8 @@ void __init imx6sl_pm_init(void)
{
imx6_pm_common_init(&imx6sl_pm_data);
}
+
+void __init imx6sx_pm_init(void)
+{
+ imx6_pm_common_init(&imx6sx_pm_data);
+}