diff options
| author | Peter Griffin <peter.griffin@linaro.org> | 2015-01-20 09:26:17 +0000 |
|---|---|---|
| committer | Peter Griffin <peter.griffin@linaro.org> | 2015-01-20 12:25:43 +0000 |
| commit | dcf7ad72d11ea760baa359e08958c1ddd4be9b86 (patch) | |
| tree | 0f25db4e744a19b826c412c51d98ee33c87e2c03 | |
| parent | d96f91c898a32341a5c21755c68419a90df98474 (diff) | |
ARM: STi: DT: STiH410: Add vqmmc-supply regulator dt node.
To enable correct switching from 3.3v to 1.8v the vsense regulator
needs to be enabled. This is only functional on stih410, so is enabled
in the stih410-b2120.dts file.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
| -rw-r--r-- | arch/arm/boot/dts/stih407-family.dtsi | 25 | ||||
| -rw-r--r-- | arch/arm/boot/dts/stih410-b2120.dts | 4 |
2 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/stih407-family.dtsi b/arch/arm/boot/dts/stih407-family.dtsi index df0284bfbf11..7e8163960b08 100644 --- a/arch/arm/boot/dts/stih407-family.dtsi +++ b/arch/arm/boot/dts/stih407-family.dtsi @@ -284,6 +284,30 @@ reset-names = "global", "port"; }; + /* + * The table below summarizes which uses the FlashSS Top + * registers. For example the vsense register is exclusively + * mapped by the voltage regulator, the subset of registers + * to manage the eMMC RX/TX delay are only used inside the + * SDHCI ST driver. + * + *---------------------------------------------------------- + * Offset Register Driver + *---------------------------------------------------------- + * 0x0 FLASHSS_CONFIG NAND + * 0x4 VSENSE_CONFIG Voltage Regulator + * 0x8 eMMC_TX_CLK_DELAY SDHCI-ST + * ... + */ + + vmmc_reg: voltage-regulator { + compatible = "st,vmmc"; + regulator-name = "vmmc0"; + /* Control register for the VSENSE Module */ + reg = <0x9061004 0x4>; + status = "disabled"; + }; + mmc0: sdhci@09060000 { compatible = "st,sdhci-stih407", "st,sdhci"; status = "disabled"; @@ -295,6 +319,7 @@ pinctrl-0 = <&pinctrl_mmc0>; clock-names = "mmc"; clocks = <&clk_s_c0_flexgen CLK_MMC_0>; + vqmmc-supply = <&vmmc_reg>; bus-width = <8>; non-removable; }; diff --git a/arch/arm/boot/dts/stih410-b2120.dts b/arch/arm/boot/dts/stih410-b2120.dts index 16f02c5e33a4..a7a7ec0a406c 100644 --- a/arch/arm/boot/dts/stih410-b2120.dts +++ b/arch/arm/boot/dts/stih410-b2120.dts @@ -29,6 +29,10 @@ soc { + vmmc_reg: voltage-regulator { + status = "okay"; + }; + mmc0: sdhci@09060000 { max-frequency = <200000000>; sd-uhs-sdr50; |