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authorStefan Reinauer <stepan@openbios.org>2005-11-24 10:45:34 +0000
committerStefan Reinauer <stepan@openbios.org>2005-11-24 10:45:34 +0000
commit7d5c7a7f1794cf846f2b62813c81f0f2a0ac5b54 (patch)
tree3ea89e5f20c249f3c0c8f31408577d3141214d3a /util/flashrom/jedec.h
parente0e137844adc8366de58514b10ed962da46ce77b (diff)
rename the directory to match the program name
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2102 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'util/flashrom/jedec.h')
-rw-r--r--util/flashrom/jedec.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/util/flashrom/jedec.h b/util/flashrom/jedec.h
new file mode 100644
index 0000000000..2a9f977711
--- /dev/null
+++ b/util/flashrom/jedec.h
@@ -0,0 +1,67 @@
+#ifndef __JEDEC_H__
+#define __JEDEC_H__ 1
+int write_byte_program_jedec(volatile unsigned char *bios, unsigned char *src,
+ volatile unsigned char *dst);
+
+extern int probe_jedec(struct flashchip *flash);
+extern int erase_chip_jedec(struct flashchip *flash);
+extern int write_jedec(struct flashchip *flash, unsigned char *buf);
+extern int erase_sector_jedec(volatile unsigned char *bios, unsigned int page);
+extern int erase_block_jedec(volatile unsigned char *bios, unsigned int page);
+extern int write_sector_jedec(volatile unsigned char *bios, unsigned char *src,
+ volatile unsigned char *dst,
+ unsigned int page_size);
+
+extern __inline__ void toggle_ready_jedec(volatile char *dst)
+{
+ unsigned int i = 0;
+ char tmp1, tmp2;
+
+ tmp1 = *dst & 0x40;
+
+ while (i++ < 0xFFFFFFF) {
+ tmp2 = *dst & 0x40;
+ if (tmp1 == tmp2) {
+ break;
+ }
+ tmp1 = tmp2;
+ }
+}
+
+extern __inline__ void data_polling_jedec(volatile char *dst, char data)
+{
+ unsigned int i = 0;
+ char tmp;
+
+ data &= 0x80;
+
+ while (i++ < 0xFFFFFFF) {
+ tmp = *dst & 0x80;
+ if (tmp == data) {
+ break;
+ }
+ }
+}
+
+extern __inline__ void unprotect_jedec(volatile char *bios)
+{
+ *(volatile char *) (bios + 0x5555) = 0xAA;
+ *(volatile char *) (bios + 0x2AAA) = 0x55;
+ *(volatile char *) (bios + 0x5555) = 0x80;
+ *(volatile char *) (bios + 0x5555) = 0xAA;
+ *(volatile char *) (bios + 0x2AAA) = 0x55;
+ *(volatile char *) (bios + 0x5555) = 0x20;
+
+ usleep(200);
+}
+
+extern __inline__ void protect_jedec(volatile char *bios)
+{
+ *(volatile char *) (bios + 0x5555) = 0xAA;
+ *(volatile char *) (bios + 0x2AAA) = 0x55;
+ *(volatile char *) (bios + 0x5555) = 0xA0;
+
+ usleep(200);
+}
+
+#endif /* !__JEDEC_H__ */