Hi, thaoth .
2008/8/7 thaoth <[EMAIL PROTECTED]>:
> Here is configuration of UBoot
> \board\ms7727se\config.mk : TEXT_BASE = 0x8DFC0000
> \board\ms7727se\u-boot.lds
>
> OUTPUT_FORMAT("elf32-sh-tkernel", "elf32-sh-tkernel", "elf32-sh-tkernel")
> SECTIONS
> {
> . = 0x8C000000 + (32*1024*1024) - (256*1024);
>
> \include\configs\ms7727se.h
> /* MEMORY */
> #define MS7720SE_SDRAM_BASE 0x8C000000
> #define MS7720SE_FLASH_BASE_1 0x80000000 //0xA0000000
> #define MS7720SE_FLASH_BANK_SIZE (8 * 1024 * 1024)
>
> #define CFG_MEMTEST_START MS7720SE_SDRAM_BASE
> #define CFG_MEMTEST_END (CFG_MEMTEST_START + (60 * 1024 * 1024))
>
> #define CFG_SDRAM_BASE MS7720SE_SDRAM_BASE
> #define CFG_SDRAM_SIZE (32 * 1024 * 1024)
>
> #define CFG_LOAD_ADDR (CFG_SDRAM_BASE + 32 * 1024 * 1024)
> #define CFG_MONITOR_BASE MS7720SE_FLASH_BASE_1
> #define CFG_MONITOR_LEN (128 * 1024)
> #define CFG_MALLOC_LEN (256 * 1024)
> #define CFG_GBL_DATA_SIZE 256
> #define CFG_BOOTMAPSZ (8 * 1024 * 1024)
>
>
> /* FLASH */
> #define CFG_FLASH_CFI
> #define CFG_FLASH_CFI_DRIVER
> #undef CFG_FLASH_QUIET_TEST
> #define CFG_FLASH_EMPTY_INFO /* print 'E' for empty sector on flinfo */
>
> #define CFG_FLASH_BASE MS7720SE_FLASH_BASE_1
>
>
>
> Would you please help me have a look this setting?
> 1. Is this setting correct ? I am confusing about TEXT_BASE with
> CFG_LOAD_ADDR. Here is definition
> - CFG_FLASH_BASE:
> Physical start address of Flash memory.
>
> - CFG_MONITOR_BASE:
> Physical start address of boot monitor code (set by
> make config files to be same as the text base address
> (TEXT_BASE) used when linking) - same as
> CFG_FLASH_BASE when booting from flash.
Yes, you are right.
If you use *make config_xx ; make* , you can make an u-boot.srec file starting
from the memory (May be address is 0x8DFC000).
I think that you know it, T-engine has a monitor program.
The T-engine user uses this monitor program and writes in it at a flash bulb.
However, as for this program, only a SREC file is usable.
If you want make SREC file to Flash, you need to use objcopy command.
shX-linux-objcopy -Ibinary -Osrec u-boot.bin u-boot.flash.srec
Please check doc/README.sh.
>
> If I am wrong, please tell me how to correct these setting.
>
> 2. "ld" T-Engine toolchain only supports elf32-sh-tkernel target, but
> reference implementation (example) tell "elf32-sh-linux" is expected target.
> Is the setting correct?
>
> \board\ms7727se\u-boot.lds
> Original :
> OUTPUT_FORMAT("elf32-sh-linux", "elf32-sh-linux", "elf32-sh-linux")
> -> My changes
> OUTPUT_FORMAT("elf32-sh-tkernel", "elf32-sh-tkernel", "elf32-sh-tkernel")
Hmmm, I have not used the tool-chain for t-kernel.
However, as for me, there is an acquaintance using t-kernel.
I can ask him. And, I will reply about this matter.
>
>
> I am newbie in embedded system. I am appreciating your helping.
> Thank you a lot.
I think that I want to support t-kernel and other OS to U-boot-sh.
I cooperate with you.
Best regards,
Nobuhiro
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