mx7d: Add Storopack's SMEGW01 board

Add support for Storopack's SMEGW01 board, which is an
IoT gateway based on the i.MX7D SoC.

Based on the original U-Boot work done by Phytec.

Signed-off-by: Fabio Estevam <festevam@denx.de>

5 files changed, 218 insertions, 0 deletions

diff --git a/board/storopack/smegw01/Kconfig b/board/storopack/smegw01/Kconfig
new file mode 100644
index 0000000000..4503b65419
--- /dev/null
+++ b/board/storopack/smegw01/Kconfig
@@ -0,0 +1,12 @@
+if TARGET_SMEGW01
+
+config SYS_BOARD
+	default "smegw01"
+
+config SYS_VENDOR
+	default "storopack"
+
+config SYS_CONFIG_NAME
+	default "smegw01"
+
+endif
diff --git a/board/storopack/smegw01/MAINTAINERS b/board/storopack/smegw01/MAINTAINERS
new file mode 100644
index 0000000000..6acb8b9341
--- /dev/null
+++ b/board/storopack/smegw01/MAINTAINERS
@@ -0,0 +1,7 @@
+SMEGW01 BOARD
+M:	Fabio Estevam <festevam@denx.de>
+S:	Maintained
+F:	board/storopack/
+F:	arch/arm/dts/imx7d-smegw01.dts
+F:	configs/smegw01_defconfig
+F:	include/configs/smegw01.h
diff --git a/board/storopack/smegw01/Makefile b/board/storopack/smegw01/Makefile
new file mode 100644
index 0000000000..f02e7bb8b0
--- /dev/null
+++ b/board/storopack/smegw01/Makefile
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0+
+# (C) Copyright 2016 NXP Semiconductors
+
+obj-y  := smegw01.o
diff --git a/board/storopack/smegw01/imximage.cfg b/board/storopack/smegw01/imximage.cfg
new file mode 100644
index 0000000000..c7fa06996c
--- /dev/null
+++ b/board/storopack/smegw01/imximage.cfg
@@ -0,0 +1,100 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2017 PHYTEC America, LLC
+ *
+ * Refer doc/imx/mkimage/imximage.txt for more details about how-to configure
+ * and create imximage boot image
+ *
+ * The syntax is taken as close as possible with the kwbimage
+ */
+
+#define __ASSEMBLY__
+#include <config.h>
+
+IMAGE_VERSION	2
+#ifdef CONFIG_IMX_HAB
+CSF CONFIG_CSF_SIZE
+#endif
+
+BOOT_FROM	sd
+
+/*
+ * Device Configuration Data (DCD)
+ *
+ * Each entry must have the format:
+ * Addr-type           Address        Value
+ *
+ * where:
+ *	Addr-type register length (1,2 or 4 bytes)
+ *	Address	  absolute address of the register
+ *	value	  value to be stored in the register
+ */
+
+/*
+ * Device Configuration Data (DCD)
+ *
+ * Each entry must have the format:
+ * Addr-type           Address        Value
+ *
+ * where:
+ *	Addr-type register length (1,2 or 4 bytes)
+ *	Address	  absolute address of the register
+ *	value	  value to be stored in the register
+ */
+
+/* DDR initialization came from Phytec */
+DATA 4 0x30340004 0x4F400005
+DATA 4 0x30360388 0x40000000
+DATA 4 0x30360384 0x40000000
+DATA 4 0x30391000 0x00000002
+DATA 4 0x307a0000 0x01040001
+DATA 4 0x307a01a0 0x80400003
+DATA 4 0x307a01a4 0x00100020
+DATA 4 0x307a01a8 0x80100004
+DATA 4 0x307a0064 0x0040002b
+DATA 4 0x307a0490 0x00000001
+DATA 4 0x307a00d0 0x00020083
+DATA 4 0x307a00d4 0x00690000
+DATA 4 0x307a00dc 0x09300004
+DATA 4 0x307a00e0 0x04080000
+DATA 4 0x307a00e4 0x00100004
+DATA 4 0x307a00f4 0x0000033f
+DATA 4 0x307a0100 0x090b1109
+DATA 4 0x307a0104 0x0007020d
+DATA 4 0x307a0108 0x03040407
+DATA 4 0x307a010c 0x00002006
+DATA 4 0x307a0110 0x04020205
+DATA 4 0x307a0114 0x03030202
+DATA 4 0x307a0120 0x00000802
+DATA 4 0x307a0180 0x00800020
+DATA 4 0x307a0184 0x02000100
+DATA 4 0x307a0190 0x02098204
+DATA 4 0x307a0194 0x00030303
+DATA 4 0x307a0200 0x00001f15
+DATA 4 0x307a0204 0x00080808
+DATA 4 0x307a0210 0x00000f0f
+DATA 4 0x307a0214 0x07070707
+DATA 4 0x307a0218 0x0f0f0707
+DATA 4 0x307a0240 0x06000604
+DATA 4 0x307a0244 0x00000001
+DATA 4 0x30391000 0x00000000
+DATA 4 0x30790000 0x17420f40
+DATA 4 0x30790004 0x10210100
+DATA 4 0x30790010 0x00060807
+DATA 4 0x307900b0 0x1010007e
+DATA 4 0x3079009c 0x00000d6e
+DATA 4 0x30790020 0x0a0a0a0a
+DATA 4 0x30790030 0x06060606
+DATA 4 0x30790050 0x01000010
+DATA 4 0x30790050 0x00000010
+DATA 4 0x307900c0 0x0e407304
+DATA 4 0x307900c0 0x0e447304
+DATA 4 0x307900c0 0x0e447306
+CHECK_BITS_SET 4 0x307900c4 0x1
+DATA 4 0x307900c0 0x0e447304
+DATA 4 0x307900c0 0x0e407304
+DATA 4 0x30384130 0x00000000
+DATA 4 0x30340020 0x00000178
+DATA 4 0x30384130 0x00000002
+DATA 4 0x30790018 0x0000000f
+CHECK_BITS_SET 4 0x307a0004 0x1
diff --git a/board/storopack/smegw01/smegw01.c b/board/storopack/smegw01/smegw01.c
new file mode 100644
index 0000000000..e6bff80e55
--- /dev/null
+++ b/board/storopack/smegw01/smegw01.c
@@ -0,0 +1,95 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright (C) 2021 Fabio Estevam <festevam@denx.de>
+
+#include <init.h>
+#include <net.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/mx7-pins.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/global_data.h>
+#include <asm/gpio.h>
+#include <asm/mach-imx/hab.h>
+#include <asm/mach-imx/iomux-v3.h>
+#include <asm/io.h>
+#include <common.h>
+#include <env.h>
+#include <asm/arch/crm_regs.h>
+#include <asm/setup.h>
+#include <asm/bootm.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define UART_PAD_CTRL  (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_PUS_PU100KOHM | \
+			PAD_CTL_HYS)
+
+int dram_init(void)
+{
+	gd->ram_size = PHYS_SDRAM_SIZE;
+
+	return 0;
+}
+
+static iomux_v3_cfg_t const wdog_pads[] = {
+	MX7D_PAD_GPIO1_IO00__WDOG1_WDOG_B | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+static iomux_v3_cfg_t const uart1_pads[] = {
+	MX7D_PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
+	MX7D_PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
+};
+
+static void setup_iomux_uart(void)
+{
+	imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
+};
+
+static int setup_fec(void)
+{
+	struct iomuxc_gpr_base_regs *const iomuxc_gpr_regs =
+			(struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR;
+	int ret;
+
+	/* Use 125M anatop REF_CLK1 for ENET1, clear gpr1[13], gpr1[17]*/
+	clrsetbits_le32(&iomuxc_gpr_regs->gpr[1],
+			(IOMUXC_GPR_GPR1_GPR_ENET1_TX_CLK_SEL_MASK |
+			IOMUXC_GPR_GPR1_GPR_ENET1_CLK_DIR_MASK), 0);
+
+	ret = set_clk_enet(ENET_125MHZ);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+int board_early_init_f(void)
+{
+	setup_iomux_uart();
+	setup_fec();
+	return 0;
+}
+
+int board_init(void)
+{
+	/* address of boot parameters */
+	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+
+	return 0;
+}
+
+int board_late_init(void)
+{
+	struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR;
+
+	imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads));
+
+	set_wdog_reset(wdog);
+
+	/*
+	 * Do not assert internal WDOG_RESET_B_DEB(controlled by bit 4),
+	 * since we use PMIC_PWRON to reset the board.
+	 */
+	clrsetbits_le16(&wdog->wcr, 0, 0x10);
+
+	return 0;
+}