From: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Date: Wed, 29 Oct 2025 09:22:47 +0000 (+0100)
Subject: arm: dts: brcp1: Move SPL partition to offset 0x8000 in SPI flash
X-Git-Tag: v2026.01-rc3~7^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8d6f0c787eb82ee488fddd360318cdab98159285;p=pandora-u-boot.git

arm: dts: brcp1: Move SPL partition to offset 0x8000 in SPI flash

The ROM code of Xilinx Zynq searches the boot flash for a "BootROM header"
at increments of 32k (0x8000), beginning with 0x0000 for a
configuration without authentication and beginning with 0x8000
for a configuration with authentication. [1]

Move the offset of the SPL partition on the brcp1 board to 0x8000
so that both cases are the same, e.g. a board that is configured
without authentication can boot an SPL partition with or without
authentication.

[1] Zynq 7000 TRM, section 6.3 "BootROM Code"

Signed-off-by: Wolfgang Wallner <wolfgang.wallner@br-automation.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20251029092252.115582-1-wolfgang.wallner@br-automation.com
---

diff --git a/arch/arm/dts/zynq-binman-brcp1.dtsi b/arch/arm/dts/zynq-binman-brcp1.dtsi
index 3cc8ee8b810..c853e8c7b15 100644
--- a/arch/arm/dts/zynq-binman-brcp1.dtsi
+++ b/arch/arm/dts/zynq-binman-brcp1.dtsi
@@ -15,7 +15,7 @@
 
 		blob@0 {
 			filename = "spl/boot.bin";
-			offset = <0x0>;
+			offset = <0x8000>;
 		};
 
 		fit {