On 01/11/2013 02:41 AM, Waibel Georg wrote:
Hello,
i'm not sure if this is the right place for this question...however, here it is:
i'm using a BDI3000 to program uboot to the flash (Spansion S29GL512P) on a MPC5200B base board. Erasing / Programming works fine as long as the flash sectors are not protected (via PPB bit). On a protected sector the erase command fails (what makes sense). I thought I can use the unlock command to unprotect the sectors, but this command seems not to work:
unlock 0xfff00000 1000
Hi Georg, do you get the same error if you create an ERASE list and have UNLOCK added as the mode for those sectors that need to be unlocked ? Issue then ERASE or UNLOCK without any parameter in the telnet session and see if that makes any difference. Also, make sure that address 0xfff00000 is the correct sector address.
Failing that, please try using the CFI interface of your flash. Check in your flash memory data sheet for all the CFI commands. Try to unlock a sector and then read back the status register to see what the reported error is. Use MD and MM commands to issue the CFI commands to your flash.
Hope this helps
-- sinan
Unlocking flash at 0xfff00000 # Invalid parameter for flash programming
Any ideas what I'm doing wrong?
Flash configuration: [FLASH] CHIPTYPE MIRRORX16 CHIPSIZE 0x04000000 BUSWIDTH 16 WORKSPACE 0x00000000
Regards Georg Waibel