On 4 Apr 2008 at 8:36, w.wegner@astro-kom.de wrote:
Hi,
On 4 Apr 2008 at 8:13, w.wegner@astro-kom.de wrote:
Hi,
I have a problem on startup on my Coldfire MCF5373L board.
When the flash is empty, something before booting the linux kernel takes too long such that the watchdog resets my board before there is a chance for the kernel to take over control.
with some more puts() I found there is around 4 second delay in this line of do_bootm_linux() in lib_m68k/m68k_linux.c:
cmd_end = cmd_start + strlen(cmdline);
Found the problem.
It was a wrong CFG_BOOTMAPSZ, seems to have been a relic from my very first try in porting to MCF53xx. With the correct line:
#define CFG_BOOTMAPSZ (CFG_SDRAM_BASE + (CFG_SDRAM_SIZE << 20))
Booting works fast as it should. (This new CFG_BOOTMAPSZ came from M5329EVB.h).
Regards, Wolfgang