[ECOS] Why little-endian redboot can't find flash

["Daniel Yu" <Daniel_Yu at Jabil dot com>]

Hi All:
	My development environment is IXP422 + Coyote. I have compiled
ecos-1.94 for redboot by big-endian mode. It runs very well. However, when
i want to compile it in little-endian mode, i meet some problems.
	Firstly:
		I modified the config file: hal_arm_xscale_grg.cdl.
		
		cdl_package CYGPKG_HAL_ARM_XSCALE_GRG {
    			display       "Intel Generic Residential Gateway
Platform"
    			parent        CYGPKG_HAL_ARM_XSCALE

			/*Delete the "implements
CYGINT_HAL_ARM_BIGENDIAN"*/

   			 hardware
   			 include_dir   cyg/hal
    			define_header hal_arm_xscale_grg.h
			......................

			cdl_option CYGBLD_GLOBAL_CFLAGS {
            				display "Global compiler flags"
            				flavor  data
            				no_define
            				default_value { "-mcpu=xscale
-mlittle-endian -Wall -Wpointer-arith -Wstrict-prototypes
					 -Winline -Wundef
-Woverloaded-virtual -g -O2 -ffunction-sections -fdata-sections -fno-rtti
-fno-exceptions 
					-fvtable-gc -finit-priority
-mapcs-frame" }
				/*Modified the "-mbig-endian" into
"-mlittle-endian"*/
				....................................

			cdl_option CYGBLD_GLOBAL_LDFLAGS {
            				display "Global linker flags"
          				flavor  data
           				 no_define
           				 default_value { "-mcpu=xscale
-mlittle-endian -Wl,--gc-sections..................................
				/*Modified the "-mbig-endian" into
"-mlittle-endian"*/

		Then: I compiled it, all things are ok.

	Secondly:   I use bdi2000 to burn it into flash:  "prog 0x50000000
redboot_le.bin bin". I have set the bdi2000 memory mode is little endian.

	Finally: I boot the coyote by using this little-endian reboot. I get
the following errors:
			Can't identify FLASH, sorry, man 18, dev
89,.........
			Flash: Driver init failed: Unknown error.
	But the redboot can run into the shell, but can not operate flash
and npe. 

	What's wrong about it? Is it right to configure the ecos for
compiling the little-endian redboot.
	Please give me some clues! Thanks
						Daniel 










-- 
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss