Hi all,
I've recently successfully changed U-Boot such that it's environment is in flash (on the PPChameleonEVB board). However, now when I boot the kernel I get no serial console. The serial console works fine under U-Boot up until the time it transfers control to Linux, at which point I get nothing.
However, if I switch back to the original U-Boot, I *do* get a serial console (this is with exactly the same kernel). This (to me) tends to point to some problem with the way I've changed U-Boot.
I've modified the 'evb405ep_early_serial_map' function in arch/ppc/platforms/PPChameleonEVB.c so that it prints out the parameters passed in the bd_t structure, and these are identical in both cases (at least, for the members of the structure that this function uses).
Can anyone offer any advice as to why I'm no longer getting a serial console? Linux is booting up fine (I can telnet into it), but I'm just not getting a console.
The changes I've made in include/configs/PPChameleonEVB.h are as follows:
CFG_MONITOR_BASE from 0xFFFC0000 to 0xFFFD0000 CFG_MONITOR_LEN and CFG_MALLOC_LEN from 256k to 192k
Changed the definitions for the environment from
#define CFG_ENV_IS_IN_EEPROM 1 /* use EEPROM for environment vars */ #define CFG_ENV_OFFSET 0x100 /* environment starts at the beginning #define CFG_ENV_SIZE 0x700 /* 2048 bytes may be used for env vars* /* total size of a CAT24WC16 is 2048 bytes * to
#define CFG_ENV_IS_IN_FLASH 1 #define CFG_ENV_ADDR 0xFFFC0000 #define CFG_ENV_SIZE 0x10000
Thanks for any advice you can offer.
Andy