arm: mvebu: turris_mox: Extend to support RIPE Atlas Probe

Extend Turris Mox board code to support CZ.NIC's RIPE Atlas Probe.

Signed-off-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>

arch/arm/dts/Makefile

@@ -322,6 +322,7 @@ else
 dtb-$(CONFIG_ARCH_MVEBU) +=			\
 	armada-3720-db.dtb			\
 	armada-3720-espressobin.dtb		\
+	armada-3720-ripe-atlas.dtb		\
 	armada-3720-turris-mox.dtb		\
 	armada-3720-eDPU.dtb			\
 	armada-3720-uDPU.dtb			\

arch/arm/dts/armada-3720-ripe-atlas.dts

@@ -0,0 +1,91 @@
+// SPDX-License-Identifier: GPL-2.0+ or X11
+/*
+ * Device Tree file for CZ.NIC' RIPE Atlas Probe
+ * 2021 by Marek Behún <marek.behun@nic.cz>
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/leds/common.h>
+#include "armada-372x.dtsi"
+
+/ {
+	model = "CZ.NIC's RIPE Atlas Probe";
+	compatible = "cznic,ripe-atlas", "marvell,armada3720",
+		     "marvell,armada3710";
+
+	aliases {
+		ethernet0 = &eth0;
+		mmc0 = &sdhci0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x00000000 0x00000000 0x20000000>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led {
+			gpios = <&gpiosb 21 GPIO_ACTIVE_LOW>;
+			color = <LED_COLOR_ID_RED>;
+			function = LED_FUNCTION_ACTIVITY;
+		};
+	};
+
+	vsdc_reg: vsdc-reg {
+		compatible = "regulator-gpio";
+		regulator-name = "vsdc";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+
+		gpios = <&gpiosb 23 GPIO_ACTIVE_HIGH>;
+		gpios-states = <0>;
+		states = <1800000 0x1
+			  3300000 0x0>;
+		enable-active-high;
+	};
+};
+
+&comphy {
+	status = "disabled";
+};
+
+&mdio {
+	pinctrl-names = "default";
+	pinctrl-0 = <&smi_pins>;
+	status = "okay";
+
+	phy1: ethernet-phy@1 {
+		reg = <1>;
+	};
+};
+
+&eth0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&rgmii_pins>;
+	phy-mode = "rgmii";
+	phy-handle = <&phy1>;
+	status = "okay";
+};
+
+&sdhci0 {
+	bus-width = <8>;
+	non-removable;
+	vqmmc-supply = <&vsdc_reg>;
+	marvell,pad-type = "sd";
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_pins>;
+	status = "okay";
+};

arch/arm/mach-mvebu/Kconfig

@@ -144,8 +144,12 @@ config TARGET_TURRIS_OMNIA
 	select ATSHA204A
 
 config TARGET_TURRIS_MOX
-	bool "Support Turris Mox"
+	bool "Support CZ.NIC's Turris Mox / RIPE Atlas Probe"
 	select ARMADA_3700
+	select BOARD_TYPES
+	select ENV_IS_IN_MMC
+	select ENV_IS_IN_SPI_FLASH
+	select MULTI_DTB_FIT
 
 config TARGET_MVEBU_ARMADA_8K
 	bool "Support Armada 7k/8k platforms"

board/CZ.NIC/turris_mox/mox_sp.c

@@ -10,6 +10,8 @@
 #include <linux/delay.h>
 #include <mach/mbox.h>
 
+#include "mox_sp.h"
+
 const char *mox_sp_get_ecdsa_public_key(void)
 {
 	static char public_key[135];
@@ -42,12 +44,13 @@ static inline void res_to_mac(u8 *mac, u32 t1, u32 t2)
 	mac[5] = t2;
 }
 
-int mbox_sp_get_board_info(u64 *sn, u8 *mac1, u8 *mac2, int *bv, int *ram)
+int mbox_sp_get_board_info(u64 *sn, u8 *mac1, u8 *mac2, int *bv, int *ram,
+			   enum cznic_a3720_board *board)
 {
-	u32 out[8];
+	u32 out[9];
 	int res;
 
-	res = mbox_do_cmd(MBOX_CMD_BOARD_INFO, NULL, 0, out, 8);
+	res = mbox_do_cmd(MBOX_CMD_BOARD_INFO, NULL, 0, out, 9);
 	if (res < 0)
 		return res;
 
@@ -69,5 +72,8 @@ int mbox_sp_get_board_info(u64 *sn, u8 *mac1, u8 *mac2, int *bv, int *ram)
 	if (mac2)
 		res_to_mac(mac2, out[6], out[7]);
 
+	if (board)
+		*board = out[8] + 1;
+
 	return 0;
 }

board/CZ.NIC/turris_mox/mox_sp.h

@@ -8,8 +8,14 @@
 
 #include <common.h>
 
+enum cznic_a3720_board {
+	BOARD_UNDEFINED		= 0x0,
+	BOARD_TURRIS_MOX	= 0x1,
+	BOARD_RIPE_ATLAS	= 0x3,
+};
+
 const char *mox_sp_get_ecdsa_public_key(void);
 int mbox_sp_get_board_info(u64 *sn, u8 *mac1, u8 *mac2, int *bv,
-			   int *ram);
+			   int *ram, enum cznic_a3720_board *board);
 
 #endif /* _BOARD_CZNIC_TURRIS_MOX_MOX_SP_H_ */

board/CZ.NIC/turris_mox/turris_mox.c

@@ -15,6 +15,7 @@
 #include <dm.h>
 #include <dm/of_extra.h>
 #include <env.h>
+#include <env_internal.h>
 #include <event.h>
 #include <fdt_support.h>
 #include <init.h>
@@ -45,6 +46,26 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
+int board_fit_config_name_match(const char *name)
+{
+	if (!gd->board_type) {
+		enum cznic_a3720_board board;
+
+		if (mbox_sp_get_board_info(NULL, NULL, NULL, NULL, NULL,
+					   &board) < 0) {
+			printf("Cannot determine board, defaulting to Turris MOX!\n");
+			board = BOARD_TURRIS_MOX;
+		}
+
+		gd->board_type = board;
+	}
+
+	return !((gd->board_type == BOARD_TURRIS_MOX &&
+		  !strcmp(name, "armada-3720-turris-mox")) ||
+		 (gd->board_type == BOARD_RIPE_ATLAS &&
+		  !strcmp(name, "armada-3720-ripe-atlas")));
+}
+
 #if defined(CONFIG_OF_BOARD_FIXUP)
 int board_fix_fdt(void *blob)
 {
@@ -53,6 +74,9 @@ int board_fix_fdt(void *blob)
 	int i, size, ret;
 	bool eth1_sgmii;
 
+	if (gd->board_type != BOARD_TURRIS_MOX)
+		return 0;
+
 	/*
 	 * SPI driver is not loaded in driver model yet, but we have to find out
 	 * if pcie should be enabled in U-Boot's device tree. Therefore we have
@@ -388,16 +412,23 @@ static void load_spi_dtb(void)
 
 int misc_init_r(void)
 {
+	int i, ret, addrcnt;
 	u8 mac[2][6];
-	int i, ret;
 
-	ret = mbox_sp_get_board_info(NULL, mac[0], mac[1], NULL, NULL);
+	ret = mbox_sp_get_board_info(NULL, mac[0], mac[1], NULL, NULL, NULL);
 	if (ret < 0) {
 		printf("Cannot read data from OTP!\n");
 		return 0;
 	}
 
-	for (i = 0; i < 2; ++i) {
+	if (gd->board_type == BOARD_TURRIS_MOX)
+		addrcnt = 2;
+	else if (gd->board_type == BOARD_RIPE_ATLAS)
+		addrcnt = 1;
+	else
+		addrcnt = 0;
+
+	for (i = 0; i < addrcnt; ++i) {
 		u8 oldmac[6];
 
 		if (is_valid_ethaddr(mac[i]) &&
@@ -405,7 +436,13 @@ int misc_init_r(void)
 			eth_env_set_enetaddr_by_index("eth", i, mac[i]);
 	}
 
-	load_spi_dtb();
+	if (gd->board_type == BOARD_RIPE_ATLAS) {
+		env_set("board", "ripe_atlas");
+		env_set("board_name", "ripe_atlas");
+		env_set("fdtfile", "marvell/armada-3720-ripe-atlas.dtb");
+	} else {
+		load_spi_dtb();
+	}
 
 	return 0;
 }
@@ -528,14 +565,15 @@ static void handle_reset_button(void)
 int show_board_info(void)
 {
 	int i, ret, board_version, ram_size, is_sd;
-	const char *pub_key;
+	const char *pub_key, *model;
 	const u8 *topology;
 	u64 serial_number;
 
-	printf("Model: CZ.NIC Turris Mox Board\n");
+	model = fdt_getprop(gd->fdt_blob, 0, "model", NULL);
+	printf("Model: %s\n", model);
 
 	ret = mbox_sp_get_board_info(&serial_number, NULL, NULL, &board_version,
-				     &ram_size);
+				     &ram_size, NULL);
 	if (ret < 0) {
 		printf("  Cannot read board info: %i\n", ret);
 	} else {
@@ -550,6 +588,9 @@ int show_board_info(void)
 	else
 		printf("  Cannot read ECDSA Public Key\n");
 
+	if (gd->board_type != BOARD_TURRIS_MOX)
+		return 0;
+
 	ret = mox_get_topology(&topology, &module_count, &is_sd);
 	if (ret)
 		printf("Cannot read module topology!\n");
@@ -668,10 +709,24 @@ err:
 	return NULL;
 }
 
+enum env_location env_get_location(enum env_operation op, int prio)
+{
+	if (prio > 0)
+		return ENVL_UNKNOWN;
+
+	if (gd->board_type == BOARD_RIPE_ATLAS)
+		return ENVL_MMC;
+
+	return ENVL_SPI_FLASH;
+}
+
 static int last_stage_init(void)
 {
 	struct gpio_desc reset_gpio = {};
 
+	if (gd->board_type != BOARD_TURRIS_MOX)
+		return 0;
+
 	/* configure modules */
 	if (get_reset_gpio(&reset_gpio) < 0)
 		goto handle_reset_btn;
@@ -801,6 +856,9 @@ int ft_board_setup(void *blob, struct bd_info *bd)
 {
 	int res;
 
+	if (gd->board_type != BOARD_TURRIS_MOX)
+		return 0;
+
 	/*
 	 * If MOX B (PCI), MOX F (USB) or MOX G (Passthrough PCI) modules are
 	 * connected, enable the PCIe node.

configs/turris_mox_defconfig

@@ -52,9 +52,10 @@ CONFIG_CMD_HASH=y
 CONFIG_CMD_BTRFS=y
 CONFIG_CMD_EXT4_WRITE=y
 CONFIG_MAC_PARTITION=y
+CONFIG_OF_LIST="armada-3720-turris-mox armada-3720-ripe-atlas"
 CONFIG_ENV_OVERWRITE=y
-CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_SYS_RELOC_GD_ENV_ADDR=y
+CONFIG_SYS_MMC_ENV_PART=2
 CONFIG_ARP_TIMEOUT=200
 CONFIG_NET_RETRY_COUNT=50
 CONFIG_NETCONSOLE=y