diff options
| author | Francesco Dolcini <francesco.dolcini@toradex.com> | 2023-04-17 14:27:36 +0200 |
|---|---|---|
| committer | Francesco Dolcini <francesco.dolcini@toradex.com> | 2023-04-17 14:48:15 +0200 |
| commit | 28ef26ad2b47e4e69d5c10e30c86925025456b18 (patch) | |
| tree | cdb5ddb1c8b1c937a716a8aae82aa578ebfe3192 | |
| parent | 60fccfd4421e9f37de072623f922b089618e9e0f (diff) | |
arm64: dts: ti: k3-am625-verdin-dev: use PMIC LDO2 as VDDR_CORE
The decision is to use PMIC LDO2 as a dedicate supply for SOC
+VDDR_CORE, +VDDR_CORE must be 0.85V and with this change we could have
+VDD_CORE set to 0.75V instead of 0.85V for lower end SKU allowing for
some power saving.
Set also +VDDR_CORE as always-on and boot-on, as this power supply
should be always on.
DSI bridge PMIC will be always powered by a dedicated LDO.
Upstream-Status: Pending
Initial DTS to be used for bring-up an validation of the V1.0 design,
we'll decide on the step forward to mainline this once the bring-up
and validation will be done.
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am625-verdin.dtsi | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/arch/arm64/boot/dts/ti/k3-am625-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am625-verdin.dtsi index a9a3b5dcf5db..11160e6d1d76 100644 --- a/arch/arm64/boot/dts/ti/k3-am625-verdin.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am625-verdin.dtsi @@ -1143,10 +1143,12 @@ regulator-name = "+V3.3_1.8_SD (PMIC LDO1)"; }; - ldo2 { - regulator-max-microvolt = <1200000>; - regulator-min-microvolt = <1200000>; - regulator-name = "+VLDO2 (PMIC LDO2)"; + reg_vddr_core: ldo2 { + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <850000>; + regulator-min-microvolt = <850000>; + regulator-name = "+VDDR_CORE (PMIC LDO2)"; }; reg_1v8a: ldo3 { |