diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/mbx8xx/startup/start.S')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/mbx8xx/startup/start.S | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/mbx8xx/startup/start.S b/c/src/lib/libbsp/powerpc/mbx8xx/startup/start.S index b254746247..bd1bbdbd7a 100644 --- a/c/src/lib/libbsp/powerpc/mbx8xx/startup/start.S +++ b/c/src/lib/libbsp/powerpc/mbx8xx/startup/start.S @@ -239,6 +239,46 @@ spin: cmpwi r3, 0x1 beq .spin /* + * test function: blink orange led once + */ +#define LEDBLINK_DELAY (5*1000*1000) +#define LEDPORT 0xFA100001 +#define LEDMASK 0xf0 +#define LEDON 0x00 +#define LEDOFF 0x08 + + PUBLIC_VAR(ledblink) +SYM(ledblink): + lis r3,LEDBLINK_DELAY>>16 +ledblink1: + subi r3,r3,1 + cmpi 0,1,r3,0 + bne ledblink1 + /* + * turn orange led off + */ + lis r3,LEDPORT@ha + lbz r0,LEDPORT@l(r3) + andi. r0,r0,LEDMASK + ori r0,r0,LEDOFF + stb r0,LEDPORT@l(r3) + + lis r3,LEDBLINK_DELAY>>16 +ledblink2: + subi r3,r3,1 + cmpi 0,1,r3,0 + bne ledblink2 + /* + * turn orange led on + */ + lis r3,LEDPORT@ha + lbz r0,LEDPORT@l(r3) + andi. r0,r0,LEDMASK + ori r0,r0,LEDON + stb r0,LEDPORT@l(r3) + + blr +/* * #define LOADED_BY_EPPCBUG */ #define LOADED_BY_EPPCBUG |