arm64: dts: ti: Add support for the AM62P5 Starter Kit

Add basic support for the AM62P5 SK with UART console and
ramdisk as rootfs.

Schematics is at https://www.ti.com/lit/zip/sprr487

Signed-off-by: Bryan Brattlof <bb@ti.com>
Acked-by: Andrew Davis <afd@ti.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20230811184432.732215-4-vigneshr@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index e3eadf6..e7b8e2e 100644 (file)
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -24,6 +24,9 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-hdmi-audio.dtbo
 # Boards with AM62Ax SoC
 dtb-$(CONFIG_ARCH_K3) += k3-am62a7-sk.dtb
 
+# Boards with AM62Px SoC
+dtb-$(CONFIG_ARCH_K3) += k3-am62p5-sk.dtb
+
 # Boards with AM64x SoC
 dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-rdk.dtb

diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
new file mode 100644 (file)
index 0000000..6fb17b1
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
@@ -0,0 +1,116 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree file for the AM62P5-SK
+ * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/
+ *
+ * Schematics: https://www.ti.com/lit/zip/sprr487
+ */
+
+/dts-v1/;
+
+#include "k3-am62p5.dtsi"
+
+/ {
+       compatible = "ti,am62p5-sk", "ti,am62p5";
+       model = "Texas Instruments AM62P5 SK";
+
+       aliases {
+               serial0 = &wkup_uart0;
+               serial2 = &main_uart0;
+               serial3 = &main_uart1;
+       };
+
+       chosen {
+               stdout-path = &main_uart0;
+       };
+
+       memory@80000000 {
+               /* 8G RAM */
+               reg = <0x00000000 0x80000000 0x00000000 0x80000000>,
+                     <0x00000008 0x80000000 0x00000001 0x80000000>;
+               device_type = "memory";
+       };
+
+       reserved-memory {
+               #address-cells = <2>;
+               #size-cells = <2>;
+               ranges;
+
+               secure_tfa_ddr: tfa@9e780000 {
+                       reg = <0x00 0x9e780000 0x00 0x80000>;
+                       no-map;
+               };
+
+               secure_ddr: optee@9e800000 {
+                       reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */
+                       no-map;
+               };
+
+               wkup_r5fss0_core0_memory_region: r5f-dma-memory@9c900000 {
+                       compatible = "shared-dma-pool";
+                       reg = <0x00 0x9c900000 0x00 0x01e00000>;
+                       no-map;
+               };
+       };
+};
+
+&main_pmx0 {
+       main_uart0_pins_default: main-uart0-default-pins {
+               bootph-all;
+               pinctrl-single,pins = <
+                       AM62PX_IOPAD(0x1c8, PIN_INPUT, 0)       /* (A22) UART0_RXD */
+                       AM62PX_IOPAD(0x1cc, PIN_OUTPUT, 0)      /* (B22) UART0_TXD */
+                       AM62PX_IOPAD(0x1d0, PIN_INPUT, 0)       /* (A23) UART0_CTSn */
+                       AM62PX_IOPAD(0x1d4, PIN_OUTPUT, 0)      /* (C22) UART0_RTSn */
+               >;
+       };
+
+       main_uart1_pins_default: main-uart1-default-pins {
+               bootph-all;
+               pinctrl-single,pins = <
+                       AM62PX_IOPAD(0x194, PIN_INPUT, 2)       /* (D25) MCASP0_AXR3 */
+                       AM62PX_IOPAD(0x198, PIN_OUTPUT, 2)      /* (E25) MCASP0_AXR2 */
+                       AM62PX_IOPAD(0x1ac, PIN_INPUT, 2)       /* (G23) MCASP0_AFSR */
+                       AM62PX_IOPAD(0x1b0, PIN_OUTPUT, 2)      /* (G20) MCASP0_ACLKR */
+               >;
+       };
+};
+
+&main_uart0 {
+       bootph-all;
+       pinctrl-names = "default";
+       pinctrl-0 = <&main_uart0_pins_default>;
+       status = "okay";
+};
+
+&main_uart1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&main_uart1_pins_default>;
+       /* Main UART1 is used by TIFS firmware */
+       status = "reserved";
+};
+
+&cbass_mcu {
+       bootph-all;
+};
+
+&mcu_pmx0 {
+       bootph-all;
+       wkup_uart0_pins_default: wkup-uart0-default-pins {
+               bootph-all;
+               pinctrl-single,pins = <
+                       AM62PX_MCU_IOPAD(0x02c, PIN_INPUT, 0)   /* (C7) WKUP_UART0_CTSn */
+                       AM62PX_MCU_IOPAD(0x030, PIN_OUTPUT, 0)  /* (C6) WKUP_UART0_RTSn */
+                       AM62PX_MCU_IOPAD(0x024, PIN_INPUT, 0)   /* (D8) WKUP_UART0_RXD */
+                       AM62PX_MCU_IOPAD(0x028, PIN_OUTPUT, 0)  /* (D7) WKUP_UART0_TXD */
+               >;
+       };
+};
+
+&wkup_uart0 {
+       /* WKUP UART0 is used by DM firmware */
+       bootph-all;
+       pinctrl-names = "default";
+       pinctrl-0 = <&wkup_uart0_pins_default>;
+       status = "reserved";
+};