arm64: ls1012afrdm: Add distro boot support

Include common config_distro_defaults.h and config_distro_bootcmd.h
for u-boot enviroments to support automatical distro boot which
scan boot.scr from external storage devices(e.g. SD and USB)
and execute autoboot script.

Signed-off-by: Bhaskar Upadhaya <Bhaskar.Upadhaya@nxp.com>
Signed-off-by: Rajesh Bhagat <rajesh.bhagat@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>

configs/ls1012afrdm_qspi_defconfig

@@ -46,3 +46,4 @@ CONFIG_DM_USB=y
 CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_DWC3=y
 CONFIG_USB_STORAGE=y
+CONFIG_DISTRO_DEFAULTS=y

include/configs/ls1012afrdm.h

@@ -20,16 +20,55 @@
 #define CONFIG_SYS_MEMTEST_START	0x80000000
 #define CONFIG_SYS_MEMTEST_END		0x9fffffff
 
+#ifndef CONFIG_SPL_BUILD
+#undef BOOT_TARGET_DEVICES
+#define BOOT_TARGET_DEVICES(func) \
+	func(USB, usb, 0)
+#endif
+
 #undef CONFIG_EXTRA_ENV_SETTINGS
-#define CONFIG_EXTRA_ENV_SETTINGS              \
-       "verify=no\0"                           \
-       "loadaddr=0x80100000\0"                 \
-       "kernel_addr=0x100000\0"                \
-       "fdt_high=0xffffffffffffffff\0"         \
-       "initrd_high=0xffffffffffffffff\0"      \
-       "kernel_start=0x1000000\0"              \
-       "kernel_load=0x96000000\0"              \
-       "kernel_size=0x2800000\0"
+#define CONFIG_EXTRA_ENV_SETTINGS		\
+	"verify=no\0"				\
+	"fdt_high=0xffffffffffffffff\0"		\
+	"initrd_high=0xffffffffffffffff\0"	\
+	"fdt_addr=0x00f00000\0"			\
+	"kernel_addr=0x01000000\0"		\
+	"scriptaddr=0x80000000\0"		\
+	"fdtheader_addr_r=0x80100000\0"		\
+	"kernelheader_addr_r=0x80200000\0"	\
+	"kernel_addr_r=0x96000000\0"		\
+	"fdt_addr_r=0x90000000\0"		\
+	"load_addr=0x96000000\0"		\
+	"kernel_size=0x2800000\0"		\
+	"console=ttyS0,115200\0"		\
+	BOOTENV					\
+	"boot_scripts=ls1012afrdm_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"				\
+	"scan_dev_for_boot="				  \
+		"echo Scanning ${devtype} "		  \
+				"${devnum}:${distro_bootpart}...; "  \
+		"for prefix in ${boot_prefixes}; do "	  \
+			"run scan_dev_for_scripts; "	  \
+		"done;"					  \
+		"\0"					  \
+	"installer=load usb 0:2 $load_addr "	\
+		   "/flex_installer_arm64.itb; "	\
+		   "bootm $load_addr#$board\0"	\
+	"qspi_bootcmd=echo Trying load from qspi..;"	\
+		"sf probe && sf read $load_addr "	\
+		"$kernel_addr $kernel_size && bootm $load_addr#$board\0"
+
+#undef CONFIG_BOOTCOMMAND
+#define CONFIG_BOOTCOMMAND "run distro_bootcmd;run qspi_bootcmd"
 
 #define CONFIG_CMD_MEMINFO
 #define CONFIG_CMD_MEMTEST