arm64: dts: renesas: ulcb: Add PMIC DDR Backup Power config

On the R-Car Starter Kit Premier/Pro, all of the DDR0, DDR1, DDR0C, and
DDR1C power rails need to be kept powered when backup mode is enabled.
Reflect this in the "rohm,ddr-backup-power" property for the BD9571MWV
PMIC node.

The accessory power switch (SW8) is a momentary switch, hense specify
"rohm,rstbmode-pulse".

Signed-off-by: Geert Uytterhoeven <[email protected]>
Signed-off-by: Simon Horman <[email protected]>

diff --git a/arch/arm64/boot/dts/renesas/ulcb.dtsi b/arch/arm64/boot/dts/renesas/ulcb.dtsi
index ee4249287fbdf1b26235437ad44c51536d9a43da..0edb16e6b3728149ecd4ef2cbb56f8be904aa403 100644 (file)
--- a/arch/arm64/boot/dts/renesas/ulcb.dtsi
+++ b/arch/arm64/boot/dts/renesas/ulcb.dtsi
@@ -256,6 +256,8 @@
                #interrupt-cells = <2>;
                gpio-controller;
                #gpio-cells = <2>;
+               rohm,ddr-backup-power = <0xf>;
+               rohm,rstbmode-pulse;
 
                regulators {
                        dvfs: dvfs {