From: Lionel Debieve <lionel.debieve@foss.st.com>
Date: Tue, 1 Apr 2025 13:14:10 +0000 (+0200)
Subject: ARM: dts: stm32: add ETZPC as a system bus for STM32MP1x boards
X-Git-Tag: v2025.07-rc1~11^2~25
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f63a30f1c0a10332b79048faa7fd00fb978f76af;p=pandora-u-boot.git

ARM: dts: stm32: add ETZPC as a system bus for STM32MP1x boards

The STM32 System Bus is an internal bus on which devices are connected.
ETZPC is a peripheral overseeing the firewall bus that configures
and control access to the peripherals connected on it.

For more information on which peripheral is securable, please read
the STM32MP13 or STM32MP15 reference manual.

Signed-off-by: Lionel Debieve <lionel.debieve@foss.st.com>
Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
---

diff --git a/arch/arm/dts/stm32mp13-u-boot.dtsi b/arch/arm/dts/stm32mp13-u-boot.dtsi
index af7edc7e2b2..1fe6966781c 100644
--- a/arch/arm/dts/stm32mp13-u-boot.dtsi
+++ b/arch/arm/dts/stm32mp13-u-boot.dtsi
@@ -48,6 +48,10 @@
 	bootph-all;
 };
 
+&etzpc {
+	bootph-all;
+};
+
 &gpioa {
 	bootph-all;
 };
diff --git a/arch/arm/dts/stm32mp15-u-boot.dtsi b/arch/arm/dts/stm32mp15-u-boot.dtsi
index 3f57bd5fe0f..327d7760436 100644
--- a/arch/arm/dts/stm32mp15-u-boot.dtsi
+++ b/arch/arm/dts/stm32mp15-u-boot.dtsi
@@ -106,6 +106,10 @@
 	operating-points-v2 = <&cpu0_opp_table>;
 };
 
+&etzpc {
+	bootph-all;
+};
+
 &gpioa {
 	bootph-all;
 };