On 5. 07. 23 10:30, Ahmad Fatoum wrote:
On 05.07.23 10:28, Andrej Picej wrote:
Hi Marco,
On 4. 07. 23 10:17, Marco Felsch wrote:
On 23-07-04, Andrej Picej wrote:
If regulator is not marked as always-on the regulator gets disabled on
reboot breaking the next boot.
Signed-off-by: Andrej Picej <andrej.picej@xxxxxxxxx>
---
arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi b/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi
index 80adb2a02cc9..25d6a036d5b8 100644
--- a/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-phytec-pfla02.dtsi
@@ -192,6 +192,7 @@ vdd_3v3_pmic_io_reg: ldo6 {
vdd_sd0_reg: ldo9 {
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
+ regulator-always-on;
I think this is the supply for the sd-card, so you can make use of
'vmmc-supply'.
This is already the case:
&usdhc3 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usdhc3
&pinctrl_usdhc3_cdwp>;
cd-gpios = <&gpio1 27 GPIO_ACTIVE_LOW>;
wp-gpios = <&gpio1 29 GPIO_ACTIVE_HIGH>;
vmmc-supply = <&vdd_sd0_reg>;
status = "disabled";
};
I think the main reason for a failed boot is that the PMIC doesn't get reset and that the bootloader doesn't specifically enable the SD card regulator.
Could this patch still be applied or should we put the fix in reset routine/bootloader?
Is SD-Card not main boot medium? From your description, I thought BootROM
will fail to boot before bootloader has a chance to do anything about it.
Yes sorry, you are absolutly right, the BootROM fails. It confused me
because I could see the booloader booting, but it was from one of the
fallback mediums. So I guess fixing the bootloader is not really an option.
Sorry for the confusion.
Best regards,
Andrej
Regards,
Marco
};
vdd_sd1_reg: ldo10 {
--
2.25.1
