Revert "mb/clevo/kbl-u: drop duplicated configuration of UART pads"

This reverts commit ccceb2250eeb820fccfb62d1f3ab407582d2e79f.

Reason for revert:
UART pad configuration should not be done in common code, since it
could cause short circuits if the user configures a wrong UART index.

Change-Id: Idc268debc60a027ed2f5a76e0de8ea2d1cde0fc4
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48327
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>

1 files changed, 17 insertions, 0 deletions

diff --git a/src/mainboard/clevo/kbl-u/variants/n13xwu/gpio_early.c b/src/mainboard/clevo/kbl-u/variants/n13xwu/gpio_early.c
new file mode 100644
index 0000000000..dc55aae6d3
--- /dev/null
+++ b/src/mainboard/clevo/kbl-u/variants/n13xwu/gpio_early.c
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/gpio.h>
+#include <variant/gpio.h>
+
+static const struct pad_config early_gpio_table[] = {
+	// UART2_RXD
+	_PAD_CFG_STRUCT(GPP_C20,	0x44000702,	0x0),
+
+	// UART2_TXD
+	_PAD_CFG_STRUCT(GPP_C21,	0x44000700,	0x0)
+};
+
+void variant_configure_early_gpios(void)
+{
+	gpio_configure_pads(early_gpio_table, ARRAY_SIZE(early_gpio_table));
+}