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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/atm/zeprom.h
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
Linux-2.6.12-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.h34
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