ARM: imx: add suspend in ocram support for i.mx6sl
i.MX6SL's suspend in ocram function is derived from i.MX6Q,
it can lower the DDR IO power from ~10mA@1.2V to ~1mA@1.2V,
measured on i.MX6SL EVK board, SH5.
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
diff --git a/arch/arm/mach-imx/pm-imx6q.c b/arch/arm/mach-imx/pm-imx6q.c
index 4155161..a9a187d 100644
--- a/arch/arm/mach-imx/pm-imx6q.c
+++ b/arch/arm/mach-imx/pm-imx6q.c
@@ -121,6 +121,14 @@
0x74c, /* GPR_ADDS */
};
+static const u32 imx6sl_mmdc_io_offset[] __initconst = {
+ 0x30c, 0x310, 0x314, 0x318, /* DQM0 ~ DQM3 */
+ 0x5c4, 0x5cc, 0x5d4, 0x5d8, /* GPR_B0DS ~ GPR_B3DS */
+ 0x300, 0x31c, 0x338, 0x5ac, /* CAS, RAS, SDCLK_0, GPR_ADDS */
+ 0x33c, 0x340, 0x5b0, 0x5c0, /* SODT0, SODT1, MODE_CTL, MODE */
+ 0x330, 0x334, 0x320, /* SDCKE0, SDCKE1, RESET */
+};
+
static const struct imx6_pm_socdata imx6q_pm_data __initconst = {
.cpu_type = MXC_CPU_IMX6Q,
.mmdc_compat = "fsl,imx6q-mmdc",
@@ -141,6 +149,16 @@
.mmdc_io_offset = imx6dl_mmdc_io_offset,
};
+static const struct imx6_pm_socdata imx6sl_pm_data __initconst = {
+ .cpu_type = MXC_CPU_IMX6SL,
+ .mmdc_compat = "fsl,imx6sl-mmdc",
+ .src_compat = "fsl,imx6sl-src",
+ .iomuxc_compat = "fsl,imx6sl-iomuxc",
+ .gpc_compat = "fsl,imx6sl-gpc",
+ .mmdc_io_num = ARRAY_SIZE(imx6sl_mmdc_io_offset),
+ .mmdc_io_offset = imx6sl_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
@@ -530,5 +548,5 @@
void __init imx6sl_pm_init(void)
{
- imx6_pm_common_init(NULL);
+ imx6_pm_common_init(&imx6sl_pm_data);
}