Revert "coreboot: rev 8b52167a9f 13 July 2025, rebase t480"HEADmaster

This reverts commit 32dfdfbb01b84bb9c058e9b84305f15a14d4e231.

The update caused an issue on T480:

Backlight comes on, then off, then on, then off, repeatedly, and
never gets to the payload. Will have to investigate further.

Signed-off-by: Leah Rowe <leah@libreboot.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/config/coreboot/default/patches/0036-src-intel-x4x-Disable-stack-overflow-debug.patch b/config/coreboot/default/patches/0036-src-intel-x4x-Disable-stack-overflow-debug.patch
new file mode 100644
index 00000000..303955a4
--- /dev/null
+++ b/config/coreboot/default/patches/0036-src-intel-x4x-Disable-stack-overflow-debug.patch
@@ -0,0 +1,33 @@
+From 5f34838af23fd4b6dccbab1f60b931fca7762e01 Mon Sep 17 00:00:00 2001
+From: Leah Rowe <leah@libreboot.org>
+Date: Mon, 6 Jan 2025 01:53:53 +0000
+Subject: [PATCH 36/41] src/intel/x4x: Disable stack overflow debug
+
+Signed-off-by: Leah Rowe <leah@libreboot.org>
+---
+ src/northbridge/intel/x4x/Kconfig | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/src/northbridge/intel/x4x/Kconfig b/src/northbridge/intel/x4x/Kconfig
+index 1803ef5733..7129aabf72 100644
+--- a/src/northbridge/intel/x4x/Kconfig
++++ b/src/northbridge/intel/x4x/Kconfig
+@@ -32,6 +32,15 @@ config ECAM_MMCONF_BUS_NUMBER
+ 	int
+ 	default 256
+ 
++# Override DEBUG Kconfig to avoid false alarm about stack overflow.
++config DEBUG_STACK_OVERFLOW_BREAKPOINTS
++	bool
++	default n
++
++config DEBUG_STACK_OVERFLOW_BREAKPOINTS_IN_ALL_STAGES
++	bool
++	default n
++
+ # This number must be equal or lower than what's reported in ACPI PCI _CRS
+ config DOMAIN_RESOURCE_32BIT_LIMIT
+ 	default 0xfec00000
+-- 
+2.39.5
+