On 24/08/24 11:44 pm, Nishanth Menon wrote:
On 11:05-20240822, Bhavya Kapoor wrote:
main_uart5 in J722S platform is used by the firmware. Thus,
what platform? what firmware?
Hey Nishanth, it is used by system firmware for its logs
in J722S-EVM.
describe it for completeness, adding the pinmux and mark
it as reserved.
Signed-off-by: Bhavya Kapoor <b-kapoor@xxxxxx>
---
arch/arm64/boot/dts/ti/k3-j722s-evm.dts | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
index 24e9f2ea509b..5addf1c0afc2 100644
--- a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
@@ -20,6 +20,7 @@ / {
aliases {
serial0 = &wkup_uart0;
serial2 = &main_uart0;
+ serial3 = &main_uart5;
mmc0 = &sdhci0;
mmc1 = &sdhci1;
};
@@ -211,6 +212,13 @@ J722S_IOPAD(0x01cc, PIN_OUTPUT, 0) /* (B22) UART0_TXD */
bootph-all;
};
+ main_uart5_pins_default: main-uart5-default-pins {
+ pinctrl-single,pins = <
+ J722S_IOPAD(0x0108, PIN_INPUT, 3) /* (J27) UART5_RXD */
+ J722S_IOPAD(0x010c, PIN_OUTPUT, 3) /* (H27) UART5_TXD */
+ >;
+ };
+
vdd_sd_dv_pins_default: vdd-sd-dv-default-pins {
pinctrl-single,pins = <
J722S_IOPAD(0x0120, PIN_INPUT, 7) /* (F27) MMC2_CMD.GPIO0_70 */
@@ -330,6 +338,12 @@ &main_uart0 {
bootph-all;
};
+&main_uart5 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_uart5_pins_default>;
Document specifically why reserved.
Will send out v2 for this.
+ status = "reserved";
+};
+
&mcu_pmx0 {
mcu_mcan0_pins_default: mcu-mcan0-default-pins {
--
2.34.1
