diff options
Diffstat (limited to 'arch/arm/mach-imx/pm-imx6.c')
| -rw-r--r-- | arch/arm/mach-imx/pm-imx6.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/arch/arm/mach-imx/pm-imx6.c b/arch/arm/mach-imx/pm-imx6.c index bbe449f52046..56341fba6d51 100644 --- a/arch/arm/mach-imx/pm-imx6.c +++ b/arch/arm/mach-imx/pm-imx6.c @@ -423,11 +423,10 @@ static const u32 imx6ul_mmdc_lpddr2_offset[] __initconst = { }; static const u32 imx6sll_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 */ + 0x294, 0x298, 0x29c, 0x2a0, /* DQM0 ~ DQM3 */ + 0x544, 0x54c, 0x554, 0x558, /* GPR_B0DS ~ GPR_B3DS */ + 0x530, 0x540, 0x2ac, 0x52c, /* MODE_CTL, MODE, SDCLK_0, GPR_ADDDS */ + 0x2a4, 0x2a8, /* SDCKE0, SDCKE1*/ }; static const u32 imx6sll_mmdc_lpddr3_offset[] __initconst = { @@ -598,7 +597,7 @@ struct imx6_cpu_pm_info { struct imx6_pm_base anatop_base; u32 ttbr1; /* Store TTBR1 */ u32 mmdc_io_num; /* Number of MMDC IOs which need saved/restored. */ - u32 mmdc_io_val[MX6_MAX_MMDC_IO_NUM][2]; /* To save offset and value */ + u32 mmdc_io_val[MX6_MAX_MMDC_IO_NUM][3]; /* To save offset, value, low power settings */ u32 mmdc_num; /* Number of MMDC registers which need saved/restored. */ u32 mmdc_val[MX6_MAX_MMDC_NUM][2]; } __aligned(8); @@ -1122,6 +1121,20 @@ static int __init imx6q_suspend_init(const struct imx6_pm_socdata *socdata) pm_info->mmdc_io_val[i][1] = readl_relaxed(pm_info->iomuxc_base.vbase + mmdc_io_offset_array[i]); + pm_info->mmdc_io_val[i][2] = 0; + } + + /* i.MX6SLL has no DRAM RESET pin */ + if (cpu_is_imx6sll()) { + pm_info->mmdc_io_val[pm_info->mmdc_io_num - 2][2] = 0x1000; + pm_info->mmdc_io_val[pm_info->mmdc_io_num - 1][2] = 0x1000; + } else { + if (pm_info->ddr_type == IMX_DDR_TYPE_LPDDR2) { + /* for LPDDR2, CKE0/1 and RESET pin need special setting */ + pm_info->mmdc_io_val[pm_info->mmdc_io_num - 3][2] = 0x1000; + pm_info->mmdc_io_val[pm_info->mmdc_io_num - 2][2] = 0x1000; + pm_info->mmdc_io_val[pm_info->mmdc_io_num - 1][2] = 0x80000; + } } /* initialize MMDC settings */ |