[DistroKit] [PATCH 03/16] v7a: barebox: boot from bootsource

[Roland Hieber <rhi@pengutronix.de>]

Barebox 2025.05.0 with CONFIG_BOOT_DEFAULTS (which we implicitly
enabled in the last commit) can resolve the boot target "bootsource" to
the device from which the board was initially booted, if this is
supported by the platform code (see barebox commit 6d91022db295 "common:
bootdef: add new boot entry provider" for more info). This way we won't
have to hard-code "mmc0", "mmc2", or "disk0" as the boot target for
different platforms.

Link: https://git.pengutronix.de/cgit/barebox/commit/?id=6d91022db29555c175e9
Signed-off-by: Roland Hieber <rhi@pengutronix.de>
---
PATCH v2:
 * remove spaces in front of bootchooser boot variables

PATCH v1: https://lore.distrokit.org/distrokit/20250526101147.1953428-3-rhi@pengutronix.de
---
 .../platform-v7a/barebox-defaultenv/nv/bootchooser.system0.boot | 2 +-
 .../platform-v7a/barebox-defaultenv/nv/bootchooser.system1.boot | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/configs/platform-v7a/barebox-defaultenv/nv/bootchooser.system0.boot b/configs/platform-v7a/barebox-defaultenv/nv/bootchooser.system0.boot
index c0c541c8b2a3..ad2855a34ee3 100644
--- a/configs/platform-v7a/barebox-defaultenv/nv/bootchooser.system0.boot
+++ b/configs/platform-v7a/barebox-defaultenv/nv/bootchooser.system0.boot
@@ -1 +1 @@
-mmc0.root-A
+bootsource.root-A
diff --git a/configs/platform-v7a/barebox-defaultenv/nv/bootchooser.system1.boot b/configs/platform-v7a/barebox-defaultenv/nv/bootchooser.system1.boot
index 1d40e339c2fe..c94742967a07 100644
--- a/configs/platform-v7a/barebox-defaultenv/nv/bootchooser.system1.boot
+++ b/configs/platform-v7a/barebox-defaultenv/nv/bootchooser.system1.boot
@@ -1 +1 @@
-mmc0.root-B
+bootsource.root-B
-- 
2.39.5