From: Sinthu Raja sinthu.raja@ti.com

J721e SK has been broken since at least March 2022.

The main-navss and mcu-navss nodes were renamed and this caused the A72 SPL to fail early in the boot even before the serial port was enabled. Fix this.

A later patch series between v2022.07 and v2022.10 additionally broke boot on this board by introducing hbmc nodes which are not present on this board. The right fix is to disable these by default in the SOC dtsi file, but for now we can also disable them in the u-boot dtsi.

With both these fixed, we can now boot the j721e SK board fully from mainline u-boot.

Fixes: 58d61fb5a77ef ("arm: dts: k3-j721e-sk: Add initial A72 specific dts support") Fixes: 297daac43afb9 ("arm: dts: k3-j721e-mcu-wakeup: Add HyperBus Controller node") Reported-by: Anand Gadiyar gadiyar@ti.com Signed-off-by: Sinthu Raja sinthu.raja@ti.com [gadiyar@ti.com: update commit description] Signed-off-by: Anand Gadiyar gadiyar@ti.com Cc: Bryan Brattlof bb@ti.com --- Hi Tom, we'd really love to see this make it to 2023.04 - Bryan and I spent a whole week narrowing it down, and this gets the board working again. Thanks!

- Anand and Bryan and Sinthu

arch/arm/dts/k3-j721e-sk-u-boot.dtsi | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/arm/dts/k3-j721e-sk-u-boot.dtsi b/arch/arm/dts/k3-j721e-sk-u-boot.dtsi index 2d65e2db42..f529e7032a 100644 --- a/arch/arm/dts/k3-j721e-sk-u-boot.dtsi +++ b/arch/arm/dts/k3-j721e-sk-u-boot.dtsi @@ -33,7 +33,7 @@ &cbass_main{ u-boot,dm-spl;

- main_navss { + main_navss: bus@30000000 { u-boot,dm-spl; }; }; @@ -49,7 +49,7 @@ u-boot,dm-spl; };

- mcu-navss { + mcu_navss: bus@28380000 { u-boot,dm-spl;

ringacc@2b800000 { @@ -237,6 +237,10 @@ u-boot,dm-spl; };

+&hbmc { + status = "disabled"; +}; + &ospi0 { u-boot,dm-spl;