[PATCH v4 3/3] arm64: dts: ti: k3-am69-sk: Add phase tags marking
Kumar, Udit
u-kumar1 at ti.com
Fri Aug 11 10:35:24 PDT 2023
Hi Apurva
On 8/11/2023 8:46 PM, Apurva Nandan wrote:
> bootph-all as phase tag was added to dt-schema
> (dtschema/schemas/bootph.yaml) to cover U-Boot challenges with DT.
> That's why add it also to Linux to be aligned with bootloader requirement.
>
> wkup_uart0, wkup_i2c0, mcu_uart0, main_uart8, main_sdhci0 and main_sdhci1
> are required for bootloader operation on TI K3 AM69-SK EVM. These IPs
> along with pinmuxes need to be marked for all bootloader phases, hence add
> bootph-all to these nodes in kernel dts.
>
> Signed-off-by: Apurva Nandan <a-nandan at ti.com>
> ---
> [...]
> &wkup_uart0 {
> + bootph-all;
> /* Firmware usage */
> status = "reserved";
> pinctrl-names = "default";
I am not sure, if you want to treat wkup_uart in same way as you are
treating secure_proxy_mcu in patch 1 of this series.
IMO, where we are making this node status is okay, mark booth-all at
that place only.
Otherwise for rest of series
LGTM
> @@ -249,6 +257,7 @@ &wkup_uart0 {
> };
>
> &wkup_i2c0 {
> + bootph-all;
> status = "okay";
> pinctrl-names = "default";
> pinctrl-0 = <&wkup_i2c0_pins_default>;
> @@ -268,6 +277,7 @@ &wkup_gpio0 {
> };
>
> &mcu_uart0 {
> + bootph-all;
> status = "okay";
> pinctrl-names = "default";
> pinctrl-0 = <&mcu_uart0_pins_default>;
> @@ -281,6 +291,7 @@ &mcu_i2c0 {
> };
>
> &main_uart8 {
> + bootph-all;
> status = "okay";
> pinctrl-names = "default";
> pinctrl-0 = <&main_uart8_pins_default>;
> @@ -307,6 +318,7 @@ exp1: gpio at 21 {
> };
>
> &main_sdhci0 {
> + bootph-all;
> /* eMMC */
> status = "okay";
> non-removable;
> @@ -315,6 +327,7 @@ &main_sdhci0 {
> };
>
> &main_sdhci1 {
> + bootph-all;
> /* SD card */
> status = "okay";
> pinctrl-0 = <&main_mmc1_pins_default>;
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