Re: [PATCH 1/3] arm64: dts: meson-gx: add ATF BL32 reserved-memory region
From: Christian Hewitt <hidden>
Date: 2022-01-26 07:12:50
Also in:
linux-amlogic, linux-devicetree, lkml
On 26 Jan 2022, at 9:35 am, Vyacheslav [off-list ref] wrote: Hi! 26.01.2022 07:49, Christian Hewitt wrote:quoted
Add an additional reserved memory region for the BL32 trusted firmware present in many devices that boot from Amlogic vendor u-boot. Suggested-by: Mateusz Krzak <redacted> Signed-off-by: Christian Hewitt <redacted> --- arch/arm64/boot/dts/amlogic/meson-gx.dtsi | 6 ++++++ 1 file changed, 6 insertions(+)diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi index 6b457b2c30a4..aa14ea017a61 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi@@ -49,6 +49,12 @@ no-map; }; + /* 32 MiB reserved for ARM Trusted Firmware (BL32) */ + secmon_reserved_bl32: secmon@5300000 { + reg = <0x0 0x05300000 0x0 0x2000000>; + no-map; + }; +How do I check if we need a similar patch for axg boards?
Are they booting using Amlogic (vendor) u-boot sources that include bl32.img in the FIP signing recipe? If booting from upstream u-boot, like JetHome boards, it’s nothing to worry about. Christian _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel