imx: ventana: add EMMC configuration

Prepare for boards with EMMC instead of NAND flash

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

board/gateworks/gw_ventana/README

@@ -30,7 +30,12 @@ will build the following artifacts from U-Boot source:
 
 To build U-Boot for the Gateworks Ventana product family:
 
- make gwventana_config
+For NAND FLASH based boards:
+ make gwventana_nand_config
+ make
+
+For EMMC FLASH based boards:
+ make gwventana_emmc_config
  make
 
 
@@ -99,11 +104,11 @@ This information is taken from:
 
 More details about the i.MX6 BOOT ROM can be found in the IMX6 reference manual.
 
-3.1. boot from micro-SD
+3.1. boot from MMC (eMMC/microSD)
------------------------
+---------------------------------
 
 When the IMX6 eFUSE settings have been factory programmed to boot from
-micro-SD the SPL will be loaded from offset 0x400 (1KB). Once the SPL is
+MMC the SPL will be loaded from offset 0x400 (1KB). Once the SPL is
 booted, it will load and execute U-Boot (u-boot.img) from offset 69KB
 on the micro-SD (defined by CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR).
 
@@ -111,11 +116,11 @@ While it is technically possible to enable the SPL to be able to load
 U-Boot from a file on a FAT/EXT filesystem on the micro-SD, we chose to
 use raw micro-SD access to keep the code-size and boot time of the SPL down.
 
-For these reasons a micro-SD that will be used as an IMX6 primary boot
+For these reasons an MMC device that will be used as an IMX6 primary boot
 device must be carefully partitioned and prepared.
 
 The following shell commands are executed on a Linux host (adjust DEV to the
-block storage device of your micro-SD):
+block storage device of your MMC, ie /dev/mmcblk0):
 
  DEV=/dev/sdc
  # zero out 1MB of device

configs/gwventana_emmc_defconfig

@@ -0,0 +1,63 @@
+CONFIG_ARM=y
+CONFIG_ARCH_MX6=y
+CONFIG_SPL_GPIO_SUPPORT=y
+CONFIG_SPL_LIBCOMMON_SUPPORT=y
+CONFIG_SPL_LIBGENERIC_SUPPORT=y
+CONFIG_TARGET_GW_VENTANA=y
+CONFIG_SPL_I2C_SUPPORT=y
+CONFIG_SPL_MMC_SUPPORT=y
+CONFIG_SPL_POWER_SUPPORT=y
+CONFIG_SPL_SERIAL_SUPPORT=y
+CONFIG_SPL_WATCHDOG_SUPPORT=y
+CONFIG_VIDEO=y
+CONFIG_SPL_STACK_R_ADDR=0x18000000
+CONFIG_FIT=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_OF_BOARD_SETUP=y
+CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/imx-common/spl_sd.cfg,MX6QDL"
+CONFIG_BOOTDELAY=3
+# CONFIG_SYS_STDIO_DEREGISTER is not set
+# CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_BOARD_EARLY_INIT_F=y
+CONFIG_SPL=y
+CONFIG_SPL_STACK_R=y
+CONFIG_SPL_DMA_SUPPORT=y
+CONFIG_SPL_OS_BOOT=y
+CONFIG_HUSH_PARSER=y
+CONFIG_SYS_PROMPT="Ventana > "
+CONFIG_CMD_BOOTZ=y
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_FLASH is not set
+CONFIG_CMD_MMC=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_USB_MASS_STORAGE=y
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_DHCP=y
+CONFIG_CMD_MII=y
+CONFIG_CMD_PING=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_TIME=y
+CONFIG_CMD_EXT2=y
+CONFIG_CMD_EXT4=y
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+CONFIG_CMD_UBI=y
+CONFIG_DM=y
+CONFIG_NETDEVICES=y
+CONFIG_E1000=y
+CONFIG_PCI=y
+CONFIG_DM_SERIAL=y
+CONFIG_USB=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_KEYBOARD=y
+CONFIG_USB_GADGET=y
+CONFIG_CI_UDC=y
+CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_G_DNL_MANUFACTURER="Gateworks"
+CONFIG_G_DNL_VENDOR_NUM=0x0525
+CONFIG_G_DNL_PRODUCT_NUM=0xa4a5
+# CONFIG_VIDEO_SW_CURSOR is not set
+CONFIG_OF_LIBFDT=y
+CONFIG_FDT_FIXUP_PARTITIONS=y

configs/gwventana_nand_defconfig

@@ -4,11 +4,12 @@ CONFIG_SPL_GPIO_SUPPORT=y
 CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
 CONFIG_TARGET_GW_VENTANA=y
+CONFIG_SPL_I2C_SUPPORT=y
 CONFIG_SPL_MMC_SUPPORT=y
-CONFIG_SPL_SERIAL_SUPPORT=y
 CONFIG_SPL_NAND_SUPPORT=y
-CONFIG_SPL_WATCHDOG_SUPPORT=y
 CONFIG_SPL_POWER_SUPPORT=y
+CONFIG_SPL_SERIAL_SUPPORT=y
+CONFIG_SPL_WATCHDOG_SUPPORT=y
 CONFIG_VIDEO=y
 CONFIG_SPL_STACK_R_ADDR=0x18000000
 CONFIG_FIT=y
@@ -22,7 +23,6 @@ CONFIG_BOARD_EARLY_INIT_F=y
 CONFIG_SPL=y
 CONFIG_SPL_STACK_R=y
 CONFIG_SPL_DMA_SUPPORT=y
-CONFIG_SPL_I2C_SUPPORT=y
 CONFIG_SPL_OS_BOOT=y
 CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="Ventana > "

include/configs/gw_ventana.h

@@ -68,7 +68,7 @@
   #define CONFIG_SF_DEFAULT_MODE             (SPI_MODE_0)
 #endif
 
-#else
+#elif defined(CONFIG_SPL_NAND_SUPPORT)
 /* Enable NAND support */
 #define CONFIG_CMD_NAND
 #define CONFIG_CMD_NAND_TRIMFFS
@@ -227,9 +227,11 @@
 
 /* Persistent Environment Config */
 #ifdef CONFIG_SPI_FLASH
-#define CONFIG_ENV_IS_IN_SPI_FLASH
+  #define CONFIG_ENV_IS_IN_SPI_FLASH
+#elif defined(CONFIG_SPL_NAND_SUPPORT)
+  #define CONFIG_ENV_IS_IN_NAND
 #else
-#define CONFIG_ENV_IS_IN_NAND
+  #define CONFIG_ENV_IS_IN_MMC
 #endif
 #if defined(CONFIG_ENV_IS_IN_MMC)
   #define CONFIG_SYS_MMC_ENV_DEV         0