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authorUwe Hermann <uwe@hermann-uwe.de>2007-08-23 10:20:40 +0000
committerUwe Hermann <uwe@hermann-uwe.de>2007-08-23 10:20:40 +0000
commit3a9bbc2cc8bc20fc64d40dc8dd67814ab66e77f5 (patch)
tree4530140526fe5c0ff3e611772240e5f3a357950a /util/flashrom/jedec.c
parent3436698b6a91a921d7091d141b01c396bdc25dc1 (diff)
Move code into *.c files, there's no reason to have it in header files.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2745 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'util/flashrom/jedec.c')
-rw-r--r--util/flashrom/jedec.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/util/flashrom/jedec.c b/util/flashrom/jedec.c
index c4afadf1e5..0c34e17a58 100644
--- a/util/flashrom/jedec.c
+++ b/util/flashrom/jedec.c
@@ -33,6 +33,58 @@
#define MAX_REFLASH_TRIES 0x10
+void toggle_ready_jedec(volatile uint8_t *dst)
+{
+ unsigned int i = 0;
+ uint8_t tmp1, tmp2;
+
+ tmp1 = *dst & 0x40;
+
+ while (i++ < 0xFFFFFFF) {
+ tmp2 = *dst & 0x40;
+ if (tmp1 == tmp2) {
+ break;
+ }
+ tmp1 = tmp2;
+ }
+}
+
+void data_polling_jedec(volatile uint8_t *dst, uint8_t data)
+{
+ unsigned int i = 0;
+ uint8_t tmp;
+
+ data &= 0x80;
+
+ while (i++ < 0xFFFFFFF) {
+ tmp = *dst & 0x80;
+ if (tmp == data) {
+ break;
+ }
+ }
+}
+
+void unprotect_jedec(volatile uint8_t *bios)
+{
+ *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ *(volatile uint8_t *)(bios + 0x5555) = 0x80;
+ *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ *(volatile uint8_t *)(bios + 0x5555) = 0x20;
+
+ usleep(200);
+}
+
+void protect_jedec(volatile uint8_t *bios)
+{
+ *(volatile uint8_t *)(bios + 0x5555) = 0xAA;
+ *(volatile uint8_t *)(bios + 0x2AAA) = 0x55;
+ *(volatile uint8_t *)(bios + 0x5555) = 0xA0;
+
+ usleep(200);
+}
+
int probe_jedec(struct flashchip *flash)
{
volatile uint8_t *bios = flash->virtual_memory;