MIPS: add support for qemu for little endian MIPS32 CPUs

Tested with 'qemu-system-mipsel -machine mips -bios u-boot.bin -nographic'

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>

boards.cfg

@@ -378,7 +378,8 @@ M5485FFE		     m68k	 mcf547x_8x  m548xevb            freescale      -
 M5485GFE		     m68k        mcf547x_8x  m548xevb            freescale      -           M5485EVB:SYS_BUSCLK=100000000,SYS_BOOTSZ=4,SYS_DRAMSZ=64
 M5485HFE		     m68k        mcf547x_8x  m548xevb            freescale      -           M5485EVB:SYS_BUSCLK=100000000,SYS_BOOTSZ=2,SYS_DRAMSZ=64,SYS_NOR1SZ=16,SYS_VIDEO
 microblaze-generic           microblaze  microblaze  microblaze-generic  xilinx
-qemu_mips                    mips        mips32      qemu-mips           -              -           qemu-mips
+qemu_mips                    mips        mips32      qemu-mips           -              -           qemu-mips:SYS_BIG_ENDIAN
+qemu_mipsel                  mips        mips32      qemu-mips           -              -           qemu-mips:SYS_LITTLE_ENDIAN
 vct_platinum                 mips        mips32      vct                 micronas       -           vct:VCT_PLATINUM
 vct_platinumavc              mips        mips32      vct                 micronas       -           vct:VCT_PLATINUMAVC
 vct_platinumavc_onenand      mips        mips32      vct                 micronas       -           vct:VCT_PLATINUMAVC,VCT_ONENAND

include/configs/qemu-mips.h

@@ -100,7 +100,12 @@
  */
 #define CONFIG_SYS_LONGHELP				/* undef to save memory */
 
-#define CONFIG_SYS_PROMPT		"qemu-mips # "	/* Monitor Command Prompt */
+/* Monitor Command Prompt */
+#if defined(CONFIG_SYS_LITTLE_ENDIAN)
+#define CONFIG_SYS_PROMPT		"qemu-mipsel # "
+#else
+#define CONFIG_SYS_PROMPT		"qemu-mips # "
+#endif
 
 #define CONFIG_AUTO_COMPLETE
 #define CONFIG_CMDLINE_EDITING