Add preliminary (non-working) support for Sharp LHF00L04
Corresponding to flashrom svn r44 and coreboot v2 svn r2197.
diff --git a/sharplhf00l04.h b/sharplhf00l04.h
index d615dfa..3b8852a 100644
--- a/sharplhf00l04.h
+++ b/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__ */