diff mbox series

[v2,2/2] arm64: dts: broadcom: bcm4908: Fix cpu node for smp boot

Message ID 20220708182507.23542-2-william.zhang@broadcom.com (mailing list archive)
State New, archived
Headers show
Series [v2,1/2] arm64: dts: broadcom: bcm4908: Fix timer node for BCM4906 SoC | expand

Commit Message

William Zhang July 8, 2022, 6:25 p.m. UTC
Add spin-table enable-method and cpu-release-addr properties for
cpu0 node. This is required by all ARMv8 SoC. Otherwise some
bootloader like u-boot can not update cpu-release-addr and linux
fails to start up secondary cpus.

Fixes: 2961f69f151c ("arm64: dts: broadcom: add BCM4908 and Asus
GT-AC5300 early DTS files")

Signed-off-by: William Zhang <william.zhang@broadcom.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>

---

Changes in v2:
- Split into two patches and add fix reference

 arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi | 2 ++
 1 file changed, 2 insertions(+)

Comments

Florian Fainelli July 8, 2022, 7:45 p.m. UTC | #1
On Fri,  8 Jul 2022 11:25:07 -0700, William Zhang <william.zhang@broadcom.com> wrote:
> Add spin-table enable-method and cpu-release-addr properties for
> cpu0 node. This is required by all ARMv8 SoC. Otherwise some
> bootloader like u-boot can not update cpu-release-addr and linux
> fails to start up secondary cpus.
> 
> Fixes: 2961f69f151c ("arm64: dts: broadcom: add BCM4908 and Asus
> GT-AC5300 early DTS files")
> 
> Signed-off-by: William Zhang <william.zhang@broadcom.com>
> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
> 
> ---

Applied to https://github.com/Broadcom/stblinux/commits/devicetree-arm64/fixes, thanks!
--
Florian
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi
index a4be040a00c0..967d2cd3c3ce 100644
--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi
+++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi
@@ -29,6 +29,8 @@  cpu0: cpu@0 {
 			device_type = "cpu";
 			compatible = "brcm,brahma-b53";
 			reg = <0x0>;
+			enable-method = "spin-table";
+			cpu-release-addr = <0x0 0xfff8>;
 			next-level-cache = <&l2>;
 		};