diff options
Diffstat (limited to 'util/flashrom/sharplhf00l04.h')
| -rw-r--r-- | util/flashrom/sharplhf00l04.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/util/flashrom/sharplhf00l04.h b/util/flashrom/sharplhf00l04.h index d615dfa44b..3b8852a828 100644 --- a/util/flashrom/sharplhf00l04.h +++ b/util/flashrom/sharplhf00l04.h @@ -4,5 +4,44 @@ extern int probe_lhf00l04(struct flashchip *flash); extern int erase_lhf00l04(struct flashchip *flash); extern int write_lhf00l04(struct flashchip *flash, uint8_t *buf); +extern __inline__ void toggle_ready_lhf00l04(volatile uint8_t *dst) +{ + unsigned int i = 0; + uint8_t tmp1, tmp2; + + tmp1 = *dst & 0x40; + + while (i++ < 0xFFFFFF) { + tmp2 = *dst & 0x40; + if (tmp1 == tmp2) { + break; + } + tmp1 = tmp2; + } +} + +extern __inline__ void data_polling_lhf00l04(volatile uint8_t *dst, uint8_t data) +{ + unsigned int i = 0; + uint8_t tmp; + + data &= 0x80; + + while (i++ < 0xFFFFFF) { + tmp = *dst & 0x80; + if (tmp == data) { + break; + } + } +} + +extern __inline__ void protect_lhf00l04(volatile uint8_t *bios) +{ + *(volatile uint8_t *) (bios + 0x5555) = 0xAA; + *(volatile uint8_t *) (bios + 0x2AAA) = 0x55; + *(volatile uint8_t *) (bios + 0x5555) = 0xA0; + + usleep(200); +} #endif /* !__SHARPLHF00L04_H__ */ |