arm: socfpga: C5 SoCDK use environment in common header

This removes the default environment from the C5 SoCDK headers
and instead uses the common environment provided in
socfpga_common.h which now uses distro boot.

In addition to the above, add support to boot from the custom
a2 type partition.

Change default devicetree name to match devicetree name in
upstream kernel source.

Signed-off-by: Dalon Westergreen <dwesterg@gmail.com>
Acked-by: Marek Vasut <marex@denx.de>

--
Changes in v2:
 - Remove unneeded CONFIG_BOOTFILE

configs/socfpga_cyclone5_defconfig

@@ -4,6 +4,7 @@ CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_TARGET_SOCFPGA_CYCLONE5_SOCDK=y
 CONFIG_SPL_STACK_R_ADDR=0x00800000
 CONFIG_DEFAULT_DEVICE_TREE="socfpga_cyclone5_socdk"
+CONFIG_DEFAULT_FDT_FILE="socfpga_cyclone5_socdk.dtb"
 CONFIG_FIT=y
 CONFIG_SYS_CONSOLE_IS_IN_ENV=y
 CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE=y
@@ -64,3 +65,5 @@ CONFIG_G_DNL_MANUFACTURER="altera"
 CONFIG_G_DNL_VENDOR_NUM=0x0525
 CONFIG_G_DNL_PRODUCT_NUM=0xa4a5
 CONFIG_USE_TINY_PRINTF=y
+CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION_TYPE=y
+CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_TYPE=0xa2

include/configs/socfpga_cyclone5_socdk.h

@@ -16,13 +16,6 @@
 #define PHYS_SDRAM_1_SIZE		0x40000000	/* 1GiB on SoCDK */
 
 /* Booting Linux */
-#define CONFIG_BOOTFILE		"zImage"
-#define CONFIG_BOOTARGS		"console=ttyS0," __stringify(CONFIG_BAUDRATE)
-#ifdef CONFIG_SOCFPGA_VIRTUAL_TARGET
-#define CONFIG_BOOTCOMMAND	"run ramboot"
-#else
-#define CONFIG_BOOTCOMMAND	"run mmcload; run mmcboot"
-#endif
 #define CONFIG_LOADADDR		0x01000000
 #define CONFIG_SYS_LOAD_ADDR	CONFIG_LOADADDR
 
@@ -34,31 +27,6 @@
 
 #define CONFIG_ENV_IS_IN_MMC
 
-/* Extra Environment */
-#define CONFIG_EXTRA_ENV_SETTINGS \
-	"verify=n\0" \
-	"loadaddr=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
-	"ramboot=setenv bootargs " CONFIG_BOOTARGS ";" \
-		"bootm ${loadaddr} - ${fdt_addr}\0" \
-	"bootimage=zImage\0" \
-	"fdt_addr=100\0" \
-	"fdtimage=socfpga.dtb\0" \
-	"bootm ${loadaddr} - ${fdt_addr}\0" \
-	"mmcroot=/dev/mmcblk0p2\0" \
-	"mmcboot=setenv bootargs " CONFIG_BOOTARGS \
-		" root=${mmcroot} rw rootwait;" \
-		"bootz ${loadaddr} - ${fdt_addr}\0" \
-	"mmcload=mmc rescan;" \
-		"load mmc 0:1 ${loadaddr} ${bootimage};" \
-		"load mmc 0:1 ${fdt_addr} ${fdtimage}\0" \
-	"qspiload=sf probe && mtdparts default && run ubiload\0" \
-	"qspiboot=setenv bootargs " CONFIG_BOOTARGS \
-		" ubi.mtd=1,64 root=ubi0:rootfs rw rootfstype=ubifs;"\
-		"bootz ${loadaddr} - ${fdt_addr}\0" \
-	"ubiload=ubi part UBI && ubifsmount ubi0 && " \
-		"ubifsload ${loadaddr} /boot/${bootimage} && " \
-		"ubifsload ${fdt_addr} /boot/${fdtimage}\0"
-
 /* The rest of the configuration is shared */
 #include <configs/socfpga_common.h>