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 [email protected] to [email protected], measured on i.MX6Q/DL SabreSD board, R25.
Signed-off-by: Anson Huang <[email protected]> --- Changes since V2: Only do necessary change based on i.mx6q's suspend to ocram function, only cpu type and MMDC IOs' info need changed. arch/arm/mach-imx/pm-imx6q.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/arch/arm/mach-imx/pm-imx6q.c b/arch/arm/mach-imx/pm-imx6q.c index 8997f58..670070b 100644 --- a/arch/arm/mach-imx/pm-imx6q.c +++ b/arch/arm/mach-imx/pm-imx6q.c @@ -66,6 +66,7 @@ #define MX6Q_SUSPEND_OCRAM_SIZE 0x1000 #define MX6_MAX_MMDC_IO_NUM 33 #define MX6Q_MMDC_IO_NUM 33 +#define MX6DL_MMDC_IO_NUM 33 static void __iomem *ccm_base; static void __iomem *suspend_ocram_base; @@ -103,6 +104,18 @@ static u32 imx6q_mmdc_io_dsm_offset[] = { 0x74c /* GPR_ADDS */ }; +static u32 imx6dl_mmdc_io_dsm_offset[] = { + 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 @@ -425,6 +438,16 @@ static int __init imx6q_ocram_suspend_init(void) readl_relaxed(*(&pm_info->iomuxc_base.vbase) + imx6q_mmdc_io_dsm_offset[i]); } + } else if (cpu_is_imx6dl()) { + pm_info->cpu_type = MXC_CPU_IMX6DL; + pm_info->mmdc_io_num = MX6DL_MMDC_IO_NUM; + for (i = 0; i < MX6DL_MMDC_IO_NUM; i++) { + pm_info->mmdc_io_val[i][0] = + imx6dl_mmdc_io_dsm_offset[i]; + pm_info->mmdc_io_val[i][1] = + readl_relaxed(*(&pm_info->iomuxc_base.vbase) + + imx6dl_mmdc_io_dsm_offset[i]); + } } imx6_suspend_in_ocram_fn = (void *)fncpy( -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
