diff options
| author | Marek Vasut <marex@denx.de> | 2022-02-25 02:15:58 +0100 |
|---|---|---|
| committer | Patrice Chotard <patrice.chotard@foss.st.com> | 2022-03-15 09:16:55 +0100 |
| commit | 0d44ad8bb4ee2e03f8e6b6f1cdd9f49c79d3dd65 (patch) | |
| tree | 94d3b0147dc8a08162d47ff4f67fdec663b4f143 /drivers/ram/stm32mp1/stm32mp1_ddr_regs.h | |
| parent | 9a8996df050dc20ef6954df077186400cb62622e (diff) | |
ram: stm32mp1: Unconditionally enable ASR
Enable DRAM ASR, auto self-refresh, unconditionally. This saves non-trivial
amount of power both at runtime and in suspend (on 2x W632GU6NB-15 ~150mW).
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Diffstat (limited to 'drivers/ram/stm32mp1/stm32mp1_ddr_regs.h')
| -rw-r--r-- | drivers/ram/stm32mp1/stm32mp1_ddr_regs.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/ram/stm32mp1/stm32mp1_ddr_regs.h b/drivers/ram/stm32mp1/stm32mp1_ddr_regs.h index f1a26e31f6c..42be1ba57c7 100644 --- a/drivers/ram/stm32mp1/stm32mp1_ddr_regs.h +++ b/drivers/ram/stm32mp1/stm32mp1_ddr_regs.h @@ -265,8 +265,14 @@ struct stm32mp1_ddrphy { #define DDRCTRL_PWRCTL_SELFREF_EN BIT(0) #define DDRCTRL_PWRCTL_POWERDOWN_EN BIT(1) +#define DDRCTRL_PWRCTL_EN_DFI_DRAM_CLK_DISABLE BIT(3) #define DDRCTRL_PWRCTL_SELFREF_SW BIT(5) +#define DDRCTRL_PWRTMG_SELFREF_TO_X32(n) (((n) & 0xff) << 16) +#define DDRCTRL_PWRTMG_POWERDOWN_TO_X32(n) ((n) & 0x1f) + +#define DDRCTRL_HWLPCTL_HW_LP_EN BIT(0) + #define DDRCTRL_RFSHCTL3_DIS_AUTO_REFRESH BIT(0) #define DDRCTRL_RFSHTMG_T_RFC_NOM_X1_X32_MASK GENMASK(27, 16) |