arm64: ls1046ardb: Add distro boot support

Tested on ls1046ardb with automatically boot Ubuntu from SD card or
USB disk, if it fails to detect external storage disk, fall back to
qspi boot.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@nxp.com>
Signed-off-by: Gong Qianyu <Qianyu.Gong@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

configs/ls1046ardb_qspi_defconfig

@@ -36,3 +36,4 @@ CONFIG_DM_SPI=y
 CONFIG_FSL_QSPI=y
 CONFIG_USB=y
 CONFIG_DM_USB=y
+CONFIG_DISTRO_DEFAULTS=y

configs/ls1046ardb_sdcard_defconfig

@@ -42,3 +42,4 @@ CONFIG_DM_SPI=y
 CONFIG_FSL_QSPI=y
 CONFIG_USB=y
 CONFIG_DM_USB=y
+CONFIG_DISTRO_DEFAULTS=y

include/configs/ls1046a_common.h

@@ -201,20 +201,54 @@
 #define CONFIG_HWCONFIG
 #define HWCONFIG_BUFFER_SIZE		128
 
+#include <config_distro_defaults.h>
+#ifndef CONFIG_SPL_BUILD
+#define BOOT_TARGET_DEVICES(func) \
+	func(MMC, mmc, 0) \
+	func(USB, usb, 0)
+#include <config_distro_bootcmd.h>
+#endif
+
 #ifndef SPL_NO_MISC
 /* Initial environment variables */
 #define CONFIG_EXTRA_ENV_SETTINGS		\
 	"hwconfig=fsl_ddr:bank_intlv=auto\0"	\
-	"loadaddr=0x80100000\0"			\
 	"ramdisk_addr=0x800000\0"		\
 	"ramdisk_size=0x2000000\0"		\
 	"fdt_high=0xffffffffffffffff\0"		\
 	"initrd_high=0xffffffffffffffff\0"	\
+	"fdt_addr=0x64f00000\0"                 \
+	"kernel_addr=0x65000000\0"              \
+	"scriptaddr=0x80000000\0"               \
+	"fdtheader_addr_r=0x80100000\0"         \
+	"kernelheader_addr_r=0x80200000\0"      \
+	"load_addr=0xa0000000\0"            \
+	"fdt_addr_r=0x90000000\0"               \
+	"ramdisk_addr_r=0xa0000000\0"           \
 	"kernel_start=0x1000000\0"		\
 	"kernel_load=0xa0000000\0"		\
 	"kernel_size=0x2800000\0"		\
 	"console=ttyS0,115200\0"                \
-		MTDPARTS_DEFAULT "\0"
+		MTDPARTS_DEFAULT "\0"		\
+	BOOTENV					\
+	"boot_scripts=ls1046ardb_boot.scr\0"    \
+	"scan_dev_for_boot_part="               \
+		"part list ${devtype} ${devnum} devplist; "   \
+		"env exists devplist || setenv devplist 1; "  \
+		"for distro_bootpart in ${devplist}; do "     \
+		  "if fstype ${devtype} "                  \
+			"${devnum}:${distro_bootpart} "      \
+			"bootfstype; then "                  \
+			"run scan_dev_for_boot; "            \
+		  "fi; "                                   \
+		"done\0"                                   \
+	"installer=load mmc 0:2 $load_addr "          \
+		"/flex_installer_arm64.itb; "          \
+		"bootm $load_addr#ls1046ardb\0"	 \
+	"qspi_bootcmd=echo Trying load from qspi..;"      \
+		"sf probe && sf read $load_addr "         \
+		"$kernel_start $kernel_size && bootm $load_addr#$board\0"
+
 
 #define CONFIG_BOOTARGS			"console=ttyS0,115200 root=/dev/ram0 " \
 					"earlycon=uart8250,mmio,0x21c0500 " \
@@ -228,10 +262,6 @@
 #define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE /* Boot args buffer */
 #define CONFIG_SYS_LONGHELP
 
-#ifndef SPL_NO_MISC
-#define CONFIG_CMDLINE_EDITING		1
-#endif
-
 #define CONFIG_AUTO_COMPLETE
 #define CONFIG_SYS_MAXARGS		64	/* max command args */
 

include/configs/ls1046aqds.h

@@ -461,6 +461,7 @@ unsigned long get_board_ddr_clk(void);
 
 #define CONFIG_CMDLINE_TAG
 
+#undef CONFIG_BOOTCOMMAND
 #if defined(CONFIG_QSPI_BOOT) || defined(CONFIG_SD_BOOT_QSPI)
 #define CONFIG_BOOTCOMMAND		"sf probe && sf read $kernel_load "    \
 					"e0000 f00000 && bootm $kernel_load"

include/configs/ls1046ardb.h

@@ -240,10 +240,8 @@
 #endif
 
 #ifndef SPL_NO_MISC
-#define CONFIG_BOOTCOMMAND		"sf probe 0:0;sf read $kernel_load" \
-					"$kernel_start $kernel_size;" \
-					"bootm $kernel_load"
-
+#undef CONFIG_BOOTCOMMAND
+#define CONFIG_BOOTCOMMAND "run distro_bootcmd;run qspi_bootcmd"
 #define MTDPARTS_DEFAULT "mtdparts=1550000.quadspi:1m(rcw)," \
 			"15m(u-boot),48m(kernel.itb);" \
 			"7e800000.flash:16m(nand_uboot)," \