cmd: Make bootvx independent of bootelf

There are lots of usecases for running baremetal ELF
binaries via bootelf but if you enable bootelf you
get bootvx as well and you probably don't want or need
it.

Hide bootvx behind it's own configuration option.

Signed-off-by: Daniel Palmer <daniel@0x0f.com>

cmd/Kconfig

@@ -498,11 +498,18 @@ config CMD_CEDIT
 	  loading and saving of configuration as well as showing an editor.
 
 config CMD_ELF
-	bool "bootelf, bootvx"
+	bool "bootelf"
 	default y
 	select LIB_ELF
 	help
-	  Boot an ELF/vxWorks image from the memory.
+	  Boot an ELF image from memory.
+
+config CMD_ELF_BOOTVX
+	bool "bootvx"
+	default y
+	depends on CMD_ELF
+	help
+	  Boot a vxWorks image from memory
 
 config CMD_ELF_FDT_SETUP
 	bool "Flattened Device Tree setup in bootelf cmd"

cmd/elf.c

@@ -10,8 +10,10 @@
 #include <env.h>
 #include <image.h>
 #include <log.h>
+#ifdef CONFIG_CMD_ELF_BOOTVX
 #include <net.h>
 #include <vxworks.h>
+#endif
 #ifdef CONFIG_X86
 #include <vesa.h>
 #include <asm/cache.h>
@@ -100,6 +102,7 @@ int do_bootelf(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 	return rcode;
 }
 
+#ifdef CONFIG_CMD_ELF_BOOTVX
 /*
  * Interpreter command to boot VxWorks from a memory image.  The image can
  * be either an ELF image or a raw binary.  Will attempt to setup the
@@ -307,6 +310,7 @@ int do_bootvx(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 
 	return 1;
 }
+#endif
 
 U_BOOT_CMD(
 	bootelf, CONFIG_SYS_MAXARGS, 0, do_bootelf,
@@ -323,8 +327,10 @@ U_BOOT_CMD(
 #endif
 );
 
+#ifdef CONFIG_CMD_ELF_BOOTVX
 U_BOOT_CMD(
 	bootvx, 2, 0, do_bootvx,
 	"Boot vxWorks from an ELF image",
 	" [address] - load address of vxWorks ELF image."
 );
+#endif