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[1/2] arm: dts: k3-j721e-r5-common-proc-board: Disable power-domains for mcu uart

Message ID 20200203134654.17832-2-lokeshvutla@ti.com
State Accepted
Commit fde109dc75686cf3d49970ea838d76ec840f4347
Headers show
Series arm: k3-j721e: Fix uart boot | expand

Commit Message

Lokesh Vutla Feb. 3, 2020, 1:46 p.m. UTC
mcu uart will be used during uart boot for loading sysfw.itb. Since
sysfw is not yet available during uart load, power-domain cannot be
enabled. We need to rely on ROM for doing that, so disable power-domains
and clocks for mcu uart. Also fix the mcu uart frequency.

Signed-off-by: Lokesh Vutla <lokeshvutla at ti.com>
---
 arch/arm/dts/k3-j721e-r5-common-proc-board.dts | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts
index 28a355d49c..64c31e23ca 100644
--- a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts
+++ b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts
@@ -143,9 +143,13 @@ 
 };
 
 &mcu_uart0 {
+	/delete-property/ power-domains;
+	/delete-property/ clocks;
+	/delete-property/ clock-names;
 	pinctrl-names = "default";
 	pinctrl-0 = <&mcu_uart0_pins_default>;
 	status = "okay";
+	clock-frequency = <48000000>;
 };
 
 &main_uart0 {