board: toradex: add apalis imx8qm 4gb wb it v1.0b module support

This commit adds initial support for the Toradex Apalis iMX8QM 4GB WB IT
V1.0B module. Unlike the V1.0A early access samples exclusively booting
from SD card, they are now strapped to boot from eFuses which are
factory fused to properly boot from their on-module eMMC. U-Boot
supports either booting from the on-module eMMC or may be used for
recovery purpose using the universal update utility (uuu) aka mfgtools
3.0.

Functionality wise the following is known to be working:
- eMMC, 8-bit and 4-bit MMC/SD card slots
- Gigabit Ethernet
- GPIOs
- I2C

Unfortunately, there is no USB functionality for the i.MX 8QM as of yet.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Max Krummenacher <max.krummenacher@toradex.com>

1 files changed, 131 insertions, 0 deletions

diff --git a/include/configs/apalis-imx8.h b/include/configs/apalis-imx8.h
new file mode 100644
index 0000000000..be2c5a2293
--- /dev/null
+++ b/include/configs/apalis-imx8.h
@@ -0,0 +1,131 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2019 Toradex
+ */
+
+#ifndef __APALIS_IMX8_H
+#define __APALIS_IMX8_H
+
+#include <asm/arch/imx-regs.h>
+#include <linux/sizes.h>
+
+#define CONFIG_REMAKE_ELF
+
+#define CONFIG_DISPLAY_BOARDINFO_LATE
+
+#undef CONFIG_BOOTM_NETBSD
+
+#define CONFIG_FSL_ESDHC
+#define CONFIG_FSL_USDHC
+#define CONFIG_SYS_FSL_ESDHC_ADDR	0
+#define USDHC1_BASE_ADDR		0x5b010000
+#define USDHC2_BASE_ADDR		0x5b020000
+#define CONFIG_SUPPORT_EMMC_BOOT	/* eMMC specific */
+
+#define CONFIG_ENV_OVERWRITE
+
+#define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
+
+/* Networking */
+#define FEC_QUIRK_ENET_MAC
+
+#define CONFIG_IP_DEFRAG
+#define CONFIG_TFTP_BLOCKSIZE		SZ_4K
+#define CONFIG_TFTP_TSIZE
+
+#define CONFIG_IPADDR			192.168.10.2
+#define CONFIG_NETMASK			255.255.255.0
+#define CONFIG_SERVERIP			192.168.10.1
+
+#define MEM_LAYOUT_ENV_SETTINGS \
+	"fdt_addr_r=0x84000000\0" \
+	"kernel_addr_r=0x82000000\0" \
+	"ramdisk_addr_r=0x94400000\0" \
+	"scriptaddr=0x87000000\0"
+
+#define BOOT_TARGET_DEVICES(func) \
+	func(MMC, mmc, 1) \
+	func(MMC, mmc, 2) \
+	func(MMC, mmc, 0) \
+	func(DHCP, dhcp, na)
+#include <config_distro_bootcmd.h>
+#undef BOOTENV_RUN_NET_USB_START
+#define BOOTENV_RUN_NET_USB_START ""
+
+/* Initial environment variables */
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	BOOTENV \
+	MEM_LAYOUT_ENV_SETTINGS \
+	"console=ttyLP1 earlycon\0" \
+	"fdt_addr=0x83000000\0"	\
+	"fdt_file=fsl-imx8qm-apalis-eval.dtb\0" \
+	"fdtfile=fsl-imx8qm-apalis-eval.dtb\0" \
+	"finduuid=part uuid mmc ${mmcdev}:2 uuid\0" \
+	"image=Image\0" \
+	"initrd_addr=0x83800000\0" \
+	"initrd_high=0xffffffffffffffff\0" \
+	"mmcargs=setenv bootargs console=${console},${baudrate} " \
+		"root=PARTUUID=${uuid} rootwait " \
+	"mmcdev=" __stringify(CONFIG_SYS_MMC_ENV_DEV) "\0" \
+	"mmcpart=" __stringify(CONFIG_SYS_MMC_IMG_LOAD_PART) "\0" \
+	"netargs=setenv bootargs console=${console},${baudrate} " \
+		"root=/dev/nfs ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp" \
+		"\0" \
+	"nfsboot=run netargs; dhcp ${loadaddr} ${image}; tftp ${fdt_addr} " \
+		"apalis-imx8/${fdt_file}; booti ${loadaddr} - ${fdt_addr}\0" \
+	"panel=NULL\0" \
+	"script=boot.scr\0" \
+	"update_uboot=askenv confirm Did you load u-boot-dtb.imx (y/N)?; " \
+		"if test \"$confirm\" = \"y\"; then " \
+		"setexpr blkcnt ${filesize} + 0x1ff && setexpr blkcnt " \
+		"${blkcnt} / 0x200; mmc dev 0 1; mmc write ${loadaddr} 0x0 " \
+		"${blkcnt}; fi\0"
+
+/* Link Definitions */
+#define CONFIG_LOADADDR			0x80280000
+
+#define CONFIG_SYS_LOAD_ADDR		CONFIG_LOADADDR
+
+#define CONFIG_SYS_INIT_SP_ADDR		0x80200000
+
+#define CONFIG_SYS_MEMTEST_START	0x88000000
+#define CONFIG_SYS_MEMTEST_END		0x89000000
+
+/* Environment in eMMC, before config block at the end of 1st "boot sector" */
+#define CONFIG_ENV_SIZE			SZ_8K
+#define CONFIG_ENV_OFFSET		(-CONFIG_ENV_SIZE + \
+					 CONFIG_TDX_CFG_BLOCK_OFFSET)
+#define CONFIG_SYS_MMC_ENV_DEV		0	/* USDHC1 eMMC */
+#define CONFIG_SYS_MMC_ENV_PART		1
+
+#define CONFIG_SYS_MMC_IMG_LOAD_PART	1
+
+/* On Apalis iMX8 USDHC1 is eMMC, USDHC2 is 8-bit and USDHC3 is 4-bit MMC/SD */
+#define CONFIG_SYS_FSL_USDHC_NUM	3
+
+#define CONFIG_SYS_BOOTM_LEN		SZ_64M /* Increase max gunzip size */
+
+/* Size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN		((CONFIG_ENV_SIZE + (32 * 1024)) * 1024)
+
+#define CONFIG_SYS_SDRAM_BASE		0x80000000
+#define PHYS_SDRAM_1			0x80000000
+#define PHYS_SDRAM_2			0x880000000
+#define PHYS_SDRAM_1_SIZE		SZ_2G		/* 2 GB */
+#define PHYS_SDRAM_2_SIZE		SZ_2G		/* 2 GB */
+
+/* Serial */
+#define CONFIG_BAUDRATE			115200
+
+/* Monitor Command Prompt */
+#define CONFIG_SYS_PROMPT_HUSH_PS2	"> "
+#define CONFIG_SYS_CBSIZE		SZ_2K
+#define CONFIG_SYS_MAXARGS		64
+#define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE
+#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
+					sizeof(CONFIG_SYS_PROMPT) + 16)
+
+/* Generic Timer Definitions */
+#define COUNTER_FREQUENCY		8000000	/* 8MHz */
+
+#endif /* __APALIS_IMX8_H */