ARM: mvebu: add support for Allied Telesis x530

This is a range of stackable network switches. The SoC is Armada-385 and
there are a number of variants with differing network port
configurations. The DP variants are intended for a harsher operating
environment so they use a different i2c mux and fit industrial-temp
parts.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>

6 files changed, 243 insertions, 0 deletions

diff --git a/board/alliedtelesis/common/gpio_hog.c b/board/alliedtelesis/common/gpio_hog.c
new file mode 100644
index 0000000000..1f87b3ac1b
--- /dev/null
+++ b/board/alliedtelesis/common/gpio_hog.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Allied Telesis Labs
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <asm/gpio.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int gpio_hog_list(struct gpio_desc *gpiod, int max_count,
+		  const char *node_name, const char *gpio_name, int value)
+{
+	int node;
+	int count;
+	int i;
+
+	node = fdt_node_offset_by_compatible(gd->fdt_blob, 0, node_name);
+	if (node < 0)
+		return -ENODEV;
+
+	if (!dm_gpio_is_valid(gpiod)) {
+		count =
+		    gpio_request_list_by_name_nodev(offset_to_ofnode(node),
+						    gpio_name, gpiod, max_count,
+						    GPIOD_IS_OUT);
+		if (count < 0)
+			return count;
+
+		for (i = 0; i < count; i++)
+			dm_gpio_set_value(&gpiod[i], value);
+	}
+
+	return 0;
+}
diff --git a/board/alliedtelesis/common/gpio_hog.h b/board/alliedtelesis/common/gpio_hog.h
new file mode 100644
index 0000000000..edb7443131
--- /dev/null
+++ b/board/alliedtelesis/common/gpio_hog.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2017 Allied Telesis Labs
+ */
+
+int gpio_hog_list(struct gpio_desc *gpiod, int max_count, const char *node_name,
+		  const char *gpio_name, int value);
+
+static inline int gpio_hog(struct gpio_desc *gpiod, const char *node_name,
+			   const char *gpio_name, int value)
+{
+	return gpio_hog_list(gpiod, 1, node_name, gpio_name, value);
+}
diff --git a/board/alliedtelesis/x530/MAINTAINERS b/board/alliedtelesis/x530/MAINTAINERS
new file mode 100644
index 0000000000..8d2d7271b9
--- /dev/null
+++ b/board/alliedtelesis/x530/MAINTAINERS
@@ -0,0 +1,12 @@
+x530 BOARD
+M:	Chris Packham <chris.packham@alliedtelesis.co.nz>
+S:	Maintained
+F:	board/alliedtelesis/x530/
+F:	board/alliedtelesis/common/gpio_hog.c
+F:	board/alliedtelesis/common/gpio_hog.h
+F:	arch/arm/dts/armada-385-atl-x530.dts
+F:	arch/arm/dts/armada-385-atl-x530.dtsi
+F:	arch/arm/dts/armada-385-atl-x530DP.dts
+F:	arch/arm/dts/armada-385-atl-x530DP.dtsi
+F:	include/configs/x530.h
+F:	configs/x530_defconfig
diff --git a/board/alliedtelesis/x530/Makefile b/board/alliedtelesis/x530/Makefile
new file mode 100644
index 0000000000..97de1d463f
--- /dev/null
+++ b/board/alliedtelesis/x530/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier:	GPL-2.0+
+#
+# Copyright (C) 2017 Allied Telesis Labs
+#
+
+obj-y	:= $(BOARD).o
+ifndef CONFIG_SPL_BUILD
+obj-y	+= ../common/gpio_hog.o
+endif
diff --git a/board/alliedtelesis/x530/kwbimage.cfg b/board/alliedtelesis/x530/kwbimage.cfg
new file mode 100644
index 0000000000..f58d388825
--- /dev/null
+++ b/board/alliedtelesis/x530/kwbimage.cfg
@@ -0,0 +1,12 @@
+#
+# Copyright (C) 2017 Allied Telesis Labs
+#
+
+# Armada XP uses version 1 image format
+VERSION		1
+
+# Boot Media configurations
+BOOT_FROM	spi
+
+# Binary Header (bin_hdr) with DDR3 training code
+BINARY spl/u-boot-spl-dtb.bin 0000005b 00000068
diff --git a/board/alliedtelesis/x530/x530.c b/board/alliedtelesis/x530/x530.c
new file mode 100644
index 0000000000..b34ae51345
--- /dev/null
+++ b/board/alliedtelesis/x530/x530.c
@@ -0,0 +1,161 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2017 Allied Telesis Labs
+ */
+
+#include <common.h>
+#include <command.h>
+#include <dm.h>
+#include <i2c.h>
+#include <asm/gpio.h>
+#include <linux/mbus.h>
+#include <linux/io.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/soc.h>
+#include "../common/gpio_hog.h"
+
+#include "../drivers/ddr/marvell/a38x/ddr3_init.h"
+#include <../serdes/a38x/high_speed_env_spec.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define MVEBU_DEV_BUS_BASE		(MVEBU_REGISTER(0x10400))
+
+#define CONFIG_NVS_LOCATION		0xf4800000
+#define CONFIG_NVS_SIZE			(512 << 10)
+
+static struct serdes_map board_serdes_map[] = {
+	{PEX0, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
+	{DEFAULT_SERDES, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+	{PEX1, SERDES_SPEED_5_GBPS, PEX_ROOT_COMPLEX_X1, 0, 0},
+	{DEFAULT_SERDES, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+	{DEFAULT_SERDES, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0},
+	{DEFAULT_SERDES, SERDES_SPEED_5_GBPS, SERDES_DEFAULT_MODE, 0, 0}
+};
+
+int hws_board_topology_load(struct serdes_map **serdes_map_array, u8 *count)
+{
+	*serdes_map_array = board_serdes_map;
+	*count = ARRAY_SIZE(board_serdes_map);
+	return 0;
+}
+
+/*
+ * Define the DDR layout / topology here in the board file. This will
+ * be used by the DDR3 init code in the SPL U-Boot version to configure
+ * the DDR3 controller.
+ */
+static struct mv_ddr_topology_map board_topology_map = {
+	DEBUG_LEVEL_ERROR,
+	0x1, /* active interfaces */
+	/* cs_mask, mirror, dqs_swap, ck_swap X PUPs */
+	{ { { {0x1, 0, 0, 0},
+	      {0x1, 0, 0, 0},
+	      {0x1, 0, 0, 0},
+	      {0x1, 0, 0, 0},
+	      {0x1, 0, 0, 0} },
+	    SPEED_BIN_DDR_1866M,	/* speed_bin */
+	    MV_DDR_DEV_WIDTH_16BIT,	/* sdram device width */
+	    MV_DDR_DIE_CAP_4GBIT,	/* die capacity */
+	    MV_DDR_FREQ_933,		/* frequency */
+	    0, 0,			/* cas_l cas_wl */
+	    MV_DDR_TEMP_LOW,		/* temperature */
+	    MV_DDR_TIM_2T} },		/* timing */
+	BUS_MASK_32BIT_ECC,		/* subphys mask */
+	MV_DDR_CFG_DEFAULT,		/* ddr configuration data source */
+	{ {0} },			/* raw spd data */
+	{0}				/* timing parameters */
+};
+
+struct mv_ddr_topology_map *mv_ddr_topology_map_get(void)
+{
+	/* Return the board topology as defined in the board code */
+	return &board_topology_map;
+}
+
+int board_early_init_f(void)
+{
+	/* Configure MPP */
+	writel(0x00001111, MVEBU_MPP_BASE + 0x00);
+	writel(0x00000000, MVEBU_MPP_BASE + 0x04);
+	writel(0x55000000, MVEBU_MPP_BASE + 0x08);
+	writel(0x55550550, MVEBU_MPP_BASE + 0x0c);
+	writel(0x55555555, MVEBU_MPP_BASE + 0x10);
+	writel(0x00100565, MVEBU_MPP_BASE + 0x14);
+	writel(0x40000000, MVEBU_MPP_BASE + 0x18);
+	writel(0x00004444, MVEBU_MPP_BASE + 0x1c);
+
+	return 0;
+}
+
+int board_init(void)
+{
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = mvebu_sdram_bar(0) + 0x100;
+
+	/* window for NVS */
+	mbus_dt_setup_win(&mbus_state, CONFIG_NVS_LOCATION, CONFIG_NVS_SIZE,
+			  CPU_TARGET_DEVICEBUS_BOOTROM_SPI, CPU_ATTR_DEV_CS1);
+
+	/* DEV_READYn is not needed for NVS, ignore it when accessing CS1 */
+	writel(0x00004001, MVEBU_DEV_BUS_BASE + 0xc8);
+
+	return 0;
+}
+
+static int led_7seg_init(unsigned int segments)
+{
+	int node;
+	int ret;
+	int i;
+	struct gpio_desc desc[8];
+
+	node = fdt_node_offset_by_compatible(gd->fdt_blob, 0,
+					     "atl,of-led-7seg");
+	if (node < 0)
+		return -ENODEV;
+
+	ret = gpio_request_list_by_name_nodev(offset_to_ofnode(node),
+					      "segment-gpios", desc,
+					      ARRAY_SIZE(desc), GPIOD_IS_OUT);
+	if (ret < 0)
+		return ret;
+
+	for (i = 0; i < ARRAY_SIZE(desc); i++) {
+		ret = dm_gpio_set_value(&desc[i], !(segments & BIT(i)));
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+#ifdef CONFIG_MISC_INIT_R
+int misc_init_r(void)
+{
+	static struct gpio_desc usb_en = {}, nand_wp = {}, phy_reset[2] = {},
+				led_en = {};
+
+	gpio_hog(&usb_en, "atl,usb-enable", "enable-gpio", 1);
+	gpio_hog(&nand_wp, "atl,nand-protect", "protect-gpio", 1);
+	gpio_hog_list(phy_reset, ARRAY_SIZE(phy_reset), "atl,phy-reset", "reset-gpio", 0);
+	gpio_hog(&led_en, "atl,led-enable", "enable-gpio", 1);
+
+#ifdef MTDPARTS_MTDOOPS
+	env_set("mtdoops", MTDPARTS_MTDOOPS);
+#endif
+
+	led_7seg_init(0xff);
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_DISPLAY_BOARDINFO
+int checkboard(void)
+{
+	puts("Board: " CONFIG_SYS_BOARD "\n");
+
+	return 0;
+}
+#endif