mb/siemens/chili: do UART pad configuration at board-level

UART pad configuration should not be done in common code, because that
may cause short circuits, when the user sets a wrong UART index. Thus,
add the corresponding pads to a bootblock gpio table for the board as a
first step. Common UART pad config code then gets dropped in CB:48829.

Change-Id: Iad40b6315a29e7aea612a3e1a169372d296d1d6c
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49443
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/mainboard/siemens/chili/bootblock.c b/src/mainboard/siemens/chili/bootblock.c
new file mode 100644
index 0000000000..7ea7eb0186
--- /dev/null
+++ b/src/mainboard/siemens/chili/bootblock.c
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <bootblock_common.h>
+#include <variant/gpio.h>
+
+__weak void variant_configure_early_gpios(void) {}
+
+void bootblock_mainboard_early_init(void)
+{
+	variant_configure_early_gpios();
+}