From 507125eedde4f89269bf0a4ee979590eb838998e Mon Sep 17 00:00:00 2001
From: Ryan Eatmon <reatmon@ti.com>
Date: Mon, 12 Jan 2026 10:02:47 -0600
Subject: [PATCH] u-boot: Add alternative key signing

Provide framework for how to sign the uboot files with different keys
so that customers can see how it is done.  We have provided an ECDSA
key and follow on patches will show how to point to it.

Signed-off-by: Ryan Eatmon <reatmon@ti.com>
---
 meta-ti-bsp/recipes-bsp/u-boot/files/custMpk_ecdsa.key | 6 ++++++
 meta-ti-bsp/recipes-bsp/u-boot/u-boot-ti.inc           | 2 ++
 2 files changed, 8 insertions(+)
 create mode 100644 meta-ti-bsp/recipes-bsp/u-boot/files/custMpk_ecdsa.key

diff --git a/meta-ti-bsp/recipes-bsp/u-boot/files/custMpk_ecdsa.key b/meta-ti-bsp/recipes-bsp/u-boot/files/custMpk_ecdsa.key
new file mode 100644
index 00000000..83dffcda
--- /dev/null
+++ b/meta-ti-bsp/recipes-bsp/u-boot/files/custMpk_ecdsa.key
@@ -0,0 +1,6 @@
+-----BEGIN EC PRIVATE KEY-----
+MIGkAgEBBDBDO9fzBU2LoKaYgji4m3ZCHKUBF9CTVnU6ClfNPJsTo0SKZpCsmyr0
+TKUNkk16vwGgBwYFK4EEACKhZANiAATCv6ftwnJW91fP5wpLpLAxt3u732oNnKr8
+pLbZUzi/s8/e7QiISJ8QKYGaWMnjORW82cM3UJKlCw8GOrb3ZrEXYWRKxkPWql0+
+BOhDQA5b21GtL9HQPvuCPz471ZaxGYA=
+-----END EC PRIVATE KEY-----
diff --git a/meta-ti-bsp/recipes-bsp/u-boot/u-boot-ti.inc b/meta-ti-bsp/recipes-bsp/u-boot/u-boot-ti.inc
index 773fa1e2..678f3bcf 100644
--- a/meta-ti-bsp/recipes-bsp/u-boot/u-boot-ti.inc
+++ b/meta-ti-bsp/recipes-bsp/u-boot/u-boot-ti.inc
@@ -416,3 +416,5 @@ PACKAGES:prepend:am62pxx-evm = "${FALCON_PKG} "
 PACKAGES:prepend:am62xx-lp-evm = "${FALCON_PKG} "
 
 TOOLCHAIN = "gcc"
+
+TI_SIGN_WITH_ECDSA_KEY ?= "KEY_PATH=${THISDIR}/files/custMpk_ecdsa.key"