board: purism: add the Purism Librem5 phone

Initial commit of Librem5 u-boot and SPL Signed-off-by: Angus Ainslie <[email protected]> Co-developed-by: Sebastian Krzyszkowiak <[email protected]> Signed-off-by: Sebastian Krzyszkowiak <[email protected]> Reviewed-by: Fabio Estevam <[email protected]>
Fighter19 · Sep 18, 2022 · 466a9ea · 466a9ea
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commit 466a9ea
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diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
@@ -974,7 +974,8 @@ dtb-$(CONFIG_ARCH_IMX8M) += \
 	imx8mp-venice-gw74xx.dtb \
 	imx8mp-verdin-wifi-dev.dtb \
 	imx8mq-pico-pi.dtb \
-	imx8mq-kontron-pitx-imx8m.dtb
+	imx8mq-kontron-pitx-imx8m.dtb \
+	imx8mq-librem5-r4.dtb
 
 dtb-$(CONFIG_ARCH_IMX9) += \
 	imx93-11x11-evk.dtb

diff --git a/arch/arm/dts/imx8mq-librem5-r4-u-boot.dtsi b/arch/arm/dts/imx8mq-librem5-r4-u-boot.dtsi
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+
+#include "imx8mq-u-boot.dtsi"
+
+&pinctrl_uart1 {
+	u-boot,dm-spl;
+};
+
+&uart1 { /* console */
+	u-boot,dm-spl;
+};
+
+&binman {
+	/delete-node/ signed-hdmi;
+
+	signed-hdmi {
+		filename = "signed_hdmi.bin";
+
+		signed-dp-imx8m {
+			filename = "signed_dp_imx8m.bin";
+			type = "blob-ext";
+		};
+	};
+};
diff --git a/arch/arm/dts/imx8mq-librem5-r4.dts b/arch/arm/dts/imx8mq-librem5-r4.dts
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+// Copyright (C) 2020 Purism SPC <[email protected]>
+
+/dts-v1/;
+
+#include "imx8mq-librem5.dtsi"
+
+/ {
+	model = "Purism Librem 5r4";
+	compatible = "purism,librem5r4", "purism,librem5", "fsl,imx8mq";
+};
+
+&accel_gyro {
+	mount-matrix =  "1",  "0",  "0",
+			"0",  "1",  "0",
+			"0",  "0", "-1";
+};
+
+&bat {
+	maxim,rsns-microohm = <1667>;
+};
+
+&bq25895 {
+	ti,battery-regulation-voltage = <4200000>; /* uV */
+	ti,charge-current = <1500000>; /* uA */
+	ti,termination-current = <144000>;  /* uA */
+};
+
+&led_backlight {
+	led-max-microamp = <25000>;
+};
+
+&proximity {
+	proximity-near-level = <10>;
+};