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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
commit51582f282ba230178aec0226ec6098460a2a25da (patch)
treebbb6f4bfdbaa94a46047f0774f3bc009b3214547 /jedec.c
parent966dc20cc330ba90a8e51e52c70303e41045ff9e (diff)
downloadast2050-flashrom-51582f282ba230178aec0226ec6098460a2a25da.zip
ast2050-flashrom-51582f282ba230178aec0226ec6098460a2a25da.tar.gz
Move code into *.c files, there's no reason to have it in header files
Corresponding to flashrom svn r127 and coreboot v2 svn r2745. Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Stefan Reinauer <stepan@coresystems.de>
Diffstat (limited to 'jedec.c')
-rw-r--r--jedec.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/jedec.c b/jedec.c
index c4afadf..0c34e17 100644
--- a/jedec.c
+++ b/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;
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