From a5767dec1980463aef5614b7ad8a800bb4f4c353 Mon Sep 17 00:00:00 2001
From: Matt Carlson <mcarlson@broadcom.com>
Date: Mon, 12 Nov 2007 21:10:58 -0800
Subject: [PATCH] [TG3]: Fix nvram selftest failures
Newer devices contain bootcode in the chip's private ROM area. This
bootcode is called selfboot. Selfboot can be patched in the device's
NVRAM and the patches can have several formats. In one particular
format, the checksum calculation needs to be slightly modified. This
patch adjusts the NVRAM test code for that case, and add support for the
missing formats.
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/tg3.c | 36 ++++++++++++++++++++++++++++++------
drivers/net/tg3.h | 8 ++++++++
2 files changed, 38 insertions(+), 6 deletions(-)
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index b865c5d448378..ef849b1eb1103 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -8701,7 +8701,9 @@ static void tg3_get_ethtool_stats (struct net_device *dev,
}
#define NVRAM_TEST_SIZE 0x100
-#define NVRAM_SELFBOOT_FORMAT1_SIZE 0x14
+#define NVRAM_SELFBOOT_FORMAT1_0_SIZE 0x14
+#define NVRAM_SELFBOOT_FORMAT1_2_SIZE 0x18
+#define NVRAM_SELFBOOT_FORMAT1_3_SIZE 0x1c
#define NVRAM_SELFBOOT_HW_SIZE 0x20
#define NVRAM_SELFBOOT_DATA_SIZE 0x1c
@@ -8716,9 +8718,22 @@ static int tg3_test_nvram(struct tg3 *tp)
if (magic == TG3_EEPROM_MAGIC)
size = NVRAM_TEST_SIZE;
else if ((magic & TG3_EEPROM_MAGIC_FW_MSK) == TG3_EEPROM_MAGIC_FW) {
- if ((magic & 0xe00000) == 0x200000)
- size = NVRAM_SELFBOOT_FORMAT1_SIZE;
- else
+ if ((magic & TG3_EEPROM_SB_FORMAT_MASK) ==
+ TG3_EEPROM_SB_FORMAT_1) {
+ switch (magic & TG3_EEPROM_SB_REVISION_MASK) {
+ case TG3_EEPROM_SB_REVISION_0:
+ size = NVRAM_SELFBOOT_FORMAT1_0_SIZE;
+ break;
+ case TG3_EEPROM_SB_REVISION_2:
+ size = NVRAM_SELFBOOT_FORMAT1_2_SIZE;
+ break;
+ case TG3_EEPROM_SB_REVISION_3:
+ size = NVRAM_SELFBOOT_FORMAT1_3_SIZE;
+ break;
+ default:
+ return 0;
+ }
+ } else
return 0;
} else if ((magic & TG3_EEPROM_MAGIC_HW_MSK) == TG3_EEPROM_MAGIC_HW)
size = NVRAM_SELFBOOT_HW_SIZE;
@@ -8745,8 +8760,17 @@ static int tg3_test_nvram(struct tg3 *tp)
TG3_EEPROM_MAGIC_FW) {
u8 *buf8 = (u8 *) buf, csum8 = 0;
- for (i = 0; i < size; i++)
- csum8 += buf8[i];
+ if ((cpu_to_be32(buf[0]) & TG3_EEPROM_SB_REVISION_MASK) ==
+ TG3_EEPROM_SB_REVISION_2) {
+ /* For rev 2, the csum doesn't include the MBA. */
+ for (i = 0; i < TG3_EEPROM_SB_F1R2_MBA_OFF; i++)
+ csum8 += buf8[i];
+ for (i = TG3_EEPROM_SB_F1R2_MBA_OFF + 4; i < size; i++)
+ csum8 += buf8[i];
+ } else {
+ for (i = 0; i < size; i++)
+ csum8 += buf8[i];
+ }
if (csum8 == 0) {
err = 0;
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index c6aad49a375d2..f715b35dfd545 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -1555,6 +1555,12 @@
#define TG3_EEPROM_MAGIC 0x669955aa
#define TG3_EEPROM_MAGIC_FW 0xa5000000
#define TG3_EEPROM_MAGIC_FW_MSK 0xff000000
+#define TG3_EEPROM_SB_FORMAT_MASK 0x00e00000
+#define TG3_EEPROM_SB_FORMAT_1 0x00200000
+#define TG3_EEPROM_SB_REVISION_MASK 0x001f0000
+#define TG3_EEPROM_SB_REVISION_0 0x00000000
+#define TG3_EEPROM_SB_REVISION_2 0x00020000
+#define TG3_EEPROM_SB_REVISION_3 0x00030000
#define TG3_EEPROM_MAGIC_HW 0xabcd
#define TG3_EEPROM_MAGIC_HW_MSK 0xffff
@@ -1765,6 +1771,8 @@
/* APE convenience enumerations. */
#define TG3_APE_LOCK_MEM 4
+#define TG3_EEPROM_SB_F1R2_MBA_OFF 0x10
+
/* There are two ways to manage the TX descriptors on the tigon3.
* Either the descriptors are in host DMA'able memory, or they
--
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