mx7ulp: Add support for Embedded Artists COM board

The Embedded Artists COM board is based on NXP i.MX7ULP.

It has a BD70528 PMIC from Rohm with discrete DCDC powering option and
improved current observability (compared to the existing NXP i.MX7ULP EVK).

Add the initial support for the board.

Signed-off-by: Fabio Estevam <festevam@gmail.com>

1 files changed, 103 insertions, 0 deletions

diff --git a/include/configs/mx7ulp_com.h b/include/configs/mx7ulp_com.h
new file mode 100644
index 0000000000..bccfea812d
--- /dev/null
+++ b/include/configs/mx7ulp_com.h
@@ -0,0 +1,103 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2016 Freescale Semiconductor, Inc.
+ *
+ * Configuration settings for the Embedded Artists i.MX7ULP COM board.
+ */
+
+#ifndef __MX7ULP_COM_CONFIG_H
+#define __MX7ULP_COM_CONFIG_H
+
+#include <linux/sizes.h>
+#include <asm/arch/imx-regs.h>
+
+#define CONFIG_BOARD_POSTCLK_INIT
+#define CONFIG_SYS_BOOTM_LEN		0x1000000
+
+#define SRC_BASE_ADDR			CMC1_RBASE
+#define IRAM_BASE_ADDR			OCRAM_0_BASE
+#define IOMUXC_BASE_ADDR		IOMUXC1_RBASE
+
+/*
+ * Detect overlap between U-Boot image and environment area in build-time
+ *
+ * CONFIG_BOARD_SIZE_LIMIT = CONFIG_ENV_OFFSET - u-boot-dtb.imx offset
+ * CONFIG_BOARD_SIZE_LIMIT = 768k - 1k = 767k = 785408
+ *
+ * Currently CONFIG_BOARD_SIZE_LIMIT does not handle expressions, so
+ * write the direct value here
+ */
+#define CONFIG_BOARD_SIZE_LIMIT		785408
+#define CONFIG_SYS_MMC_ENV_DEV		0
+#define CONFIG_MMCROOT			"/dev/mmcblk0p2"
+#define CONFIG_SYS_MMC_IMG_LOAD_PART	1
+
+/* Using ULP WDOG for reset */
+#define WDOG_BASE_ADDR			WDG1_RBASE
+
+#define CONFIG_SYS_HZ_CLOCK		1000000 /* Fixed at 1MHz from TSTMR */
+
+#define CONFIG_INITRD_TAG
+#define CONFIG_CMDLINE_TAG
+#define CONFIG_SETUP_MEMORY_TAGS
+
+/* Size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN		(8 * SZ_1M)
+
+/* UART */
+#define LPUART_BASE			LPUART4_RBASE
+
+/* allow to overwrite serial and ethaddr */
+#define CONFIG_ENV_OVERWRITE
+
+/* Physical Memory Map */
+
+#define PHYS_SDRAM			0x60000000
+#define CONFIG_SYS_MEMTEST_START	PHYS_SDRAM
+#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM
+
+#define CONFIG_LOADADDR			0x60800000
+
+#define CONFIG_SYS_MEMTEST_END		(CONFIG_SYS_MEMTEST_START + SZ_512M)
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"image=zImage\0" \
+	"console=ttyLP0\0" \
+	"fdt_high=0xffffffff\0" \
+	"initrd_high=0xffffffff\0" \
+	"fdt_file=imx7ulp-com.dtb\0" \
+	"fdt_addr=0x63000000\0" \
+	"mmcdev="__stringify(CONFIG_SYS_MMC_ENV_DEV)"\0" \
+	"mmcpart=" __stringify(CONFIG_SYS_MMC_IMG_LOAD_PART) "\0" \
+	"mmcroot=" CONFIG_MMCROOT " rootwait rw\0" \
+	"mmcargs=setenv bootargs console=${console},${baudrate} " \
+		"root=${mmcroot}\0" \
+	"loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \
+	"loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
+	"mmcboot=echo Booting from mmc ...; " \
+		"run mmcargs; " \
+		"if run loadfdt; then " \
+			"bootz ${loadaddr} - ${fdt_addr}; " \
+		"fi;\0" \
+
+#define CONFIG_BOOTCOMMAND \
+	"if run loadimage; then " \
+		"run mmcboot; " \
+	"fi; " \
+
+#define CONFIG_SYS_LOAD_ADDR		CONFIG_LOADADDR
+
+#define CONFIG_SYS_INIT_RAM_ADDR	IRAM_BASE_ADDR
+#define CONFIG_SYS_INIT_RAM_SIZE	SZ_256K
+
+#define CONFIG_SYS_INIT_SP_OFFSET \
+	(CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
+#define CONFIG_SYS_INIT_SP_ADDR \
+	(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
+
+#if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
+#define CONFIG_CMD_CACHE
+#endif
+
+#define CONFIG_MXC_USB_PORTSC		(PORT_PTS_UTMI | PORT_PTS_PTW)
+#endif	/* __CONFIG_H */