i.MX6DL's suspend in ocram function is derived from i.MX6Q,
the only difference is the offset of DDR IO pins. It can
lower the DDR IO power from ~26mA@1.5V to ~15mA@1.5V,
measured on i.MX6Q/DL SabreSD board, R25.
Signed-off-by: Anson Huang <b20788@xxxxxxxxxxxxx>
---
arch/arm/mach-imx/pm-imx6q.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/arch/arm/mach-imx/pm-imx6q.c b/arch/arm/mach-imx/pm-imx6q.c
index 42ac301..826bf8a 100644
--- a/arch/arm/mach-imx/pm-imx6q.c
+++ b/arch/arm/mach-imx/pm-imx6q.c
@@ -100,6 +100,18 @@ static const u32 imx6q_mmdc_io_dsm_offset[] __initconst = {
0x74c /* GPR_ADDS */
};
+static const u32 imx6dl_mmdc_io_dsm_offset[] __initconst = {
+ 0x470, 0x474, 0x478, 0x47c, /* DQM0 ~ DQM3 */
+ 0x480, 0x484, 0x488, 0x48c, /* DQM4 ~ DQM7 */
+ 0x464, 0x490, 0x4ac, 0x4b0, /* CAS, RAS, SDCLK_0, SDCLK_1 */
+ 0x4bc, 0x4c0, 0x4c4, 0x4c8, /* DRAM_SDQS0 ~ DRAM_SDQS3 */
+ 0x4cc, 0x4d0, 0x4d4, 0x4d8, /* DRAM_SDQS4 ~ DRAM_SDQS7 */
+ 0x764, 0x770, 0x778, 0x77c, /* GPR_B0DS ~ GPR_B3DS */
+ 0x780, 0x784, 0x78c, 0x748, /* GPR_B4DS ~ GPR_B7DS */
+ 0x4b4, 0x4b8, 0x750, 0x760, /* SODT0, SODT1, DDRMODE_CTL, DDRMODE */
+ 0x74c /* GPR_ADDS */
+};
+
/*
* This structure is for passing necessary data for low level ocram
* suspend code(arch/arm/mach-imx/suspend-imx6.S), if this struct
@@ -413,6 +425,10 @@ static int __init imx6q_ocram_suspend_init(void)
pm_info->cpu_type = MXC_CPU_IMX6Q;
pm_info->mmdc_io_num = ARRAY_SIZE(imx6q_mmdc_io_dsm_offset);
mmdc_offset_array = imx6q_mmdc_io_dsm_offset;
+ } else if (cpu_is_imx6dl()) {
+ pm_info->cpu_type = MXC_CPU_IMX6DL;
+ pm_info->mmdc_io_num = ARRAY_SIZE(imx6dl_mmdc_io_dsm_offset);
+ mmdc_offset_array = imx6dl_mmdc_io_dsm_offset;
}
if (!mmdc_offset_array) {
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
