ARM: dts: microchip: add support for sama7d65_curiosity board

Add device tree support for the SAMA7D65 Curiosity board.
Update the Makefile to include the new device tree file.

uart6 is related to flexcom6, hence not sorted in alphabetical order.

Signed-off-by: Romain Sioen <romain.sioen@microchip.com>
Signed-off-by: Varshini Rajendran <varshini.rajendran@microchip.com>
Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
Link: https://lore.kernel.org/r/20250107160850.120537-6-Ryan.Wanner@microchip.com
[claudiu.beznea: moved chosen node after alias for aphanumerically
 sortage, added a space in front of <PIN_PD19__FLEXCOM6_IO1> for
 alignment]
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>

diff --git a/arch/arm/boot/dts/microchip/Makefile b/arch/arm/boot/dts/microchip/Makefile
index 470fe46433a9b5a1bf0f5630f61b82eebda49397..79cd38fdc7dab83c5d5595e9feca0d59b483763f 100644 (file)
--- a/arch/arm/boot/dts/microchip/Makefile
+++ b/arch/arm/boot/dts/microchip/Makefile
@@ -12,6 +12,7 @@ DTC_FLAGS_at91-sama5d2_xplained := -@
 DTC_FLAGS_at91-sama5d3_eds := -@
 DTC_FLAGS_at91-sama5d3_xplained := -@
 DTC_FLAGS_at91-sama5d4_xplained := -@
+DTC_FLAGS_at91-sama7d65_curiosity := -@
 DTC_FLAGS_at91-sama7g54_curiosity := -@
 DTC_FLAGS_at91-sama7g5ek := -@
 dtb-$(CONFIG_SOC_AT91RM9200) += \
@@ -90,6 +91,8 @@ dtb-$(CONFIG_SOC_SAM_V7) += \
        at91-sama5d4_xplained.dtb \
        at91-sama5d4ek.dtb \
        at91-vinco.dtb
+dtb-$(CONFIG_SOC_SAMA7D65) += \
+       at91-sama7d65_curiosity.dtb
 dtb-$(CONFIG_SOC_SAMA7G5) += \
        at91-sama7g54_curiosity.dtb \
        at91-sama7g5ek.dtb

diff --git a/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts b/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts
new file mode 100644 (file)
index 0000000..0f86360
--- /dev/null
+++ b/arch/arm/boot/dts/microchip/at91-sama7d65_curiosity.dts
@@ -0,0 +1,89 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ *  at91-sama7d65_curiosity.dts - Device Tree file for SAMA7D65 Curiosity board
+ *
+ *  Copyright (c) 2024 Microchip Technology Inc. and its subsidiaries
+ *
+ *  Author: Romain Sioen <romain.sioen@microchip.com>
+ *
+ */
+/dts-v1/;
+#include "sama7d65-pinfunc.h"
+#include "sama7d65.dtsi"
+#include <dt-bindings/mfd/atmel-flexcom.h>
+#include <dt-bindings/pinctrl/at91.h>
+
+/ {
+       model = "Microchip SAMA7D65 Curiosity";
+       compatible = "microchip,sama7d65-curiosity", "microchip,sama7d65",
+                    "microchip,sama7d6", "microchip,sama7";
+
+       aliases {
+               serial0 = &uart6;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+
+       memory@60000000 {
+               device_type = "memory";
+               reg = <0x60000000 0x40000000>;
+       };
+};
+
+&flx6 {
+       atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
+       status = "okay";
+};
+
+&uart6 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_uart6_default>;
+       status = "okay";
+};
+
+&main_xtal {
+       clock-frequency = <24000000>;
+};
+
+&pioa {
+       pinctrl_sdmmc1_default: sdmmc1-default {
+               cmd-data {
+                       pinmux = <PIN_PB22__SDMMC1_CMD>,
+                                <PIN_PB24__SDMMC1_DAT0>,
+                                <PIN_PB25__SDMMC1_DAT1>,
+                                <PIN_PB26__SDMMC1_DAT2>,
+                                <PIN_PB27__SDMMC1_DAT3>;
+                       slew-rate = <0>;
+                       bias-disable;
+               };
+
+               ck-cd-rstn-vddsel {
+                       pinmux = <PIN_PB23__SDMMC1_CK>,
+                                <PIN_PB21__SDMMC1_RSTN>,
+                                <PIN_PB30__SDMMC1_1V8SEL>,
+                                <PIN_PB29__SDMMC1_CD>,
+                                <PIN_PB28__SDMMC1_WP>;
+                       slew-rate = <0>;
+                       bias-disable;
+               };
+       };
+
+       pinctrl_uart6_default: uart6-default {
+               pinmux = <PIN_PD18__FLEXCOM6_IO0>,
+                        <PIN_PD19__FLEXCOM6_IO1>;
+               bias-disable;
+       };
+};
+
+&sdmmc1 {
+       bus-width = <4>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_sdmmc1_default>;
+       status = "okay";
+};
+
+&slow_xtal {
+       clock-frequency = <32768>;
+};