diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/atm/zeprom.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/atm/zeprom.h')
-rw-r--r-- | drivers/atm/zeprom.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/atm/zeprom.h b/drivers/atm/zeprom.h new file mode 100644 index 000000000000..019bb82490e9 --- /dev/null +++ b/drivers/atm/zeprom.h @@ -0,0 +1,34 @@ +/* drivers/atm/zeprom.h - ZeitNet ZN122x EEPROM (NM93C46) declarations */ + +/* Written 1995,1996 by Werner Almesberger, EPFL LRC */ + + +#ifndef DRIVER_ATM_ZEPROM_H +#define DRIVER_ATM_ZEPROM_H + +/* Different versions use different control registers */ + +#define ZEPROM_V1_REG PCI_VENDOR_ID /* PCI register */ +#define ZEPROM_V2_REG 0x40 + +/* Bits in contol register */ + +#define ZEPROM_SK 0x80000000 /* strobe (probably on raising edge) */ +#define ZEPROM_CS 0x40000000 /* Chip Select */ +#define ZEPROM_DI 0x20000000 /* Data Input */ +#define ZEPROM_DO 0x10000000 /* Data Output */ + +#define ZEPROM_SIZE 32 /* 32 bytes */ +#define ZEPROM_V1_ESI_OFF 24 /* ESI offset in EEPROM (V1) */ +#define ZEPROM_V2_ESI_OFF 4 /* ESI offset in EEPROM (V2) */ + +#define ZEPROM_CMD_LEN 3 /* commands are three bits */ +#define ZEPROM_ADDR_LEN 6 /* addresses are six bits */ + +/* Commands (3 bits) */ + +#define ZEPROM_CMD_READ 6 + +/* No other commands are needed. */ + +#endif |