imx: Add support for Kontron i.MX8MP OSM-S SoM and BL carrier board

This adds support for the Kontron Electronics OSM-S i.MX8MP SoM
and the matching baseboard BL i.MX8MP.

The SoM hardware complies to the Open Standard Module (OSM) 1.1
specification, size S (https://sget.org/standards/osm).

Signed-off-by: Frieder Schrempf <[email protected]>

2 files changed, 138 insertions, 0 deletions

diff --git a/arch/arm/dts/imx8mp-kontron-bl-osm-s-u-boot.dtsi b/arch/arm/dts/imx8mp-kontron-bl-osm-s-u-boot.dtsi
new file mode 100644
index 00000000000..9c777e62d98
--- /dev/null
+++ b/arch/arm/dts/imx8mp-kontron-bl-osm-s-u-boot.dtsi
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Copyright (C) 2022 Kontron Electronics GmbH
+ */
+
+#include "imx8mp-u-boot.dtsi"
+
+/ {
+	wdt-reboot {
+		compatible = "wdt-reboot";
+		wdt = <&wdog1>;
+		bootph-pre-ram;
+	};
+};
+
+&gpio1 {
+	bootph-pre-ram;
+};
+
+&gpio2 {
+	bootph-pre-ram;
+};
+
+&gpio3 {
+	bootph-pre-ram;
+};
+
+&gpio4 {
+	bootph-pre-ram;
+};
+
+&gpio5 {
+	bootph-pre-ram;
+};
+
+/* Enable I2C1 to probe for a touch controller on LVDS connector */
+&i2c1 {
+	status = "okay";
+};
+
+&i2c5 {
+	bootph-pre-ram;
+};
+
+&pinctrl_i2c5 {
+	bootph-pre-ram;
+};
+
+&pinctrl_i2c5_gpio {
+	bootph-pre-ram;
+};
+
+&pinctrl_pmic {
+	bootph-pre-ram;
+};
+
+&pinctrl_uart3 {
+	bootph-pre-ram;
+};
+
+&pinctrl_wdog {
+	bootph-pre-ram;
+};
+
+&pca9450 {
+	bootph-pre-ram;
+};
+
+&reg_vdd_soc {
+	bootph-pre-ram;
+};
+
+&reg_vdd_arm {
+	bootph-pre-ram;
+};
+
+&reg_vdd_3v3 {
+	bootph-pre-ram;
+};
+
+&reg_vdd_1v8 {
+	bootph-pre-ram;
+};
+
+&reg_nvcc_dram {
+	bootph-pre-ram;
+};
+
+&reg_nvcc_snvs {
+	bootph-pre-ram;
+};
+
+&reg_vdda {
+	bootph-pre-ram;
+};
+
+&reg_nvcc_sd {
+	bootph-pre-ram;
+};
+
+&uart3 {
+	bootph-pre-ram;
+};
+
+&usb_dwc3_0 {
+	/*
+	 * OTG role switching is currently not supported in U-Boot, use peripheral
+	 * as default.
+	 */
+	dr_mode = "peripheral";
+};
+
+&usb3_phy0 {
+	/*
+	 * Workaround to fix USB in U-Boot until the following commit from
+	 * linux-next-20251111 has landed and been synced to dts/upstream:
+	 * 6504297872c7 ("arm64: dts: imx8mp-kontron: Fix USB OTG role switching")
+	 */
+	/delete-property/ vbus-supply;
+};
+
+&wdog1 {
+	bootph-pre-ram;
+};
diff --git a/arch/arm/mach-imx/imx8m/Kconfig b/arch/arm/mach-imx/imx8m/Kconfig
index 030ed2f0633..1dea8a466a6 100644
--- a/arch/arm/mach-imx/imx8m/Kconfig
+++ b/arch/arm/mach-imx/imx8m/Kconfig
@@ -158,6 +158,19 @@ config TARGET_KONTRON_MX8MM
 	select ARCH_MISC_INIT
 	select SPL_CRYPTO if SPL
 
+config TARGET_KONTRON_MX8MP
+	bool "Kontron OSM-S/BL i.MX8MP"
+	select BINMAN
+	select IMX8MP
+	select SUPPORT_SPL
+	select IMX8M_LPDDR4
+	select FSL_CAAM
+	select ARCH_MISC_INIT
+	select SPL_CRYPTO if SPL
+	help
+	  Kontron Electronics BL i.MX8MP using SoM module conformant to OSM
+	  standard 1.1 size S.
+
 config TARGET_IMX8MN_BSH_SMM_S2
 	bool "imx8mn-bsh-smm-s2"
 	select IMX8MN
@@ -434,6 +447,7 @@ source "board/freescale/imx8mn_evk/Kconfig"
 source "board/freescale/imx8mp_evk/Kconfig"
 source "board/gateworks/venice/Kconfig"
 source "board/google/imx8mq_phanbell/Kconfig"
+source "board/kontron/osm-s-mx8mp/Kconfig"
 source "board/kontron/pitx_imx8m/Kconfig"
 source "board/kontron/sl-mx8mm/Kconfig"
 source "board/menlo/mx8menlo/Kconfig"