Fix the dts to match board's reference design:
- update vddio_boot regulator to 3.3v (Wi-Fi SDIO module)
- add vccq_1v8 regulator with 1.8v for eMMC SDIO
In the first revision of JetHub D1 the vccq_1v8 regulator was 3.3v.
All installed eMMC modules were tested to work in HS200 mode at 3.3v
supply voltage. In the next revisions of the board eMMC will be
powered with 1.8v according to the standard.
Signed-off-by: Vyacheslav Bocharov <[email protected]>
---
.../dts/amlogic/meson-axg-jethome-jethub-j100.dts | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/boot/dts/amlogic/meson-axg-jethome-jethub-j100.dts b/arch/arm64/boot/dts/amlogic/meson-axg-jethome-jethub-j100.dts
index 66c1eeba8f48..bc00d672a357 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg-jethome-jethub-j100.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-axg-jethome-jethub-j100.dts
@@ -81,12 +81,22 @@ vddio_ao18: regulator-vddio_ao18 {
vddio_boot: regulator-vddio_boot {
compatible = "regulator-fixed";
regulator-name = "VDDIO_BOOT";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <&vddao_3v3>;
+ regulator-always-on;
+ };
+
+ vccq_1v8: regulator-vccq_1v8 {
+ compatible = "regulator-fixed";
+ regulator-name = "VCCQ_1V8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
vin-supply = <&vddao_3v3>;
regulator-always-on;
};
+
usb_pwr: regulator-usb_pwr {
compatible = "regulator-fixed";
regulator-name = "USB_PWR";
@@ -248,8 +258,7 @@ &sd_emmc_b {
bus-width = <4>;
cap-sd-highspeed;
- sd-uhs-sdr104;
- max-frequency = <200000000>;
+ max-frequency = <50000000>;
non-removable;
disable-wp;
@@ -282,7 +291,7 @@ &sd_emmc_c {
mmc-pwrseq = <&emmc_pwrseq>;
vmmc-supply = <&vcc_3v3>;
- vqmmc-supply = <&vddio_boot>;
+ vqmmc-supply = <&vccq_1v8>;
};
/* UART Bluetooth */
--
2.30.2
Hi,
On 25/03/2022 17:55, Vyacheslav Bocharov wrote:
> Fix the dts to match board's reference design:
> - update vddio_boot regulator to 3.3v (Wi-Fi SDIO module)
> - add vccq_1v8 regulator with 1.8v for eMMC SDIO
>
> In the first revision of JetHub D1 the vccq_1v8 regulator was 3.3v.
> All installed eMMC modules were tested to work in HS200 mode at 3.3v
> supply voltage. In the next revisions of the board eMMC will be
> powered with 1.8v according to the standard.
>
> Signed-off-by: Vyacheslav Bocharov <[email protected]>
> ---
> .../dts/amlogic/meson-axg-jethome-jethub-j100.dts | 15 ++++++++++++---
> 1 file changed, 12 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/amlogic/meson-axg-jethome-jethub-j100.dts b/arch/arm64/boot/dts/amlogic/meson-axg-jethome-jethub-j100.dts
> index 66c1eeba8f48..bc00d672a357 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-axg-jethome-jethub-j100.dts
> +++ b/arch/arm64/boot/dts/amlogic/meson-axg-jethome-jethub-j100.dts
> @@ -81,12 +81,22 @@ vddio_ao18: regulator-vddio_ao18 {
> vddio_boot: regulator-vddio_boot {
> compatible = "regulator-fixed";
> regulator-name = "VDDIO_BOOT";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + vin-supply = <&vddao_3v3>;
> + regulator-always-on;
> + };
> +
> + vccq_1v8: regulator-vccq_1v8 {
> + compatible = "regulator-fixed";
> + regulator-name = "VCCQ_1V8";
> regulator-min-microvolt = <1800000>;
> regulator-max-microvolt = <1800000>;
> vin-supply = <&vddao_3v3>;
> regulator-always-on;
> };
>
> +
> usb_pwr: regulator-usb_pwr {
> compatible = "regulator-fixed";
> regulator-name = "USB_PWR";
> @@ -248,8 +258,7 @@ &sd_emmc_b {
>
> bus-width = <4>;
> cap-sd-highspeed;
> - sd-uhs-sdr104;
> - max-frequency = <200000000>;
> + max-frequency = <50000000>;
This changes should be in a separate commit
> non-removable;
> disable-wp;
>
> @@ -282,7 +291,7 @@ &sd_emmc_c {
> mmc-pwrseq = <&emmc_pwrseq>;
>
> vmmc-supply = <&vcc_3v3>;
> - vqmmc-supply = <&vddio_boot>;
> + vqmmc-supply = <&vccq_1v8>;
> };
>
> /* UART Bluetooth */