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-rw-r--r--drivers/net/tg3.c21
-rw-r--r--drivers/net/tg3.h9
2 files changed, 22 insertions, 8 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 4f9fbe268ec9..482b7df55247 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -595,7 +595,8 @@ static void tg3_switch_clocks(struct tg3 *tp)
u32 clock_ctrl = tr32(TG3PCI_CLOCK_CTRL);
u32 orig_clock_ctrl;
- if (tp->tg3_flags2 & TG3_FLG2_5780_CLASS)
+ if ((tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
+ (tp->tg3_flags2 & TG3_FLG2_5780_CLASS))
return;
orig_clock_ctrl = clock_ctrl;
@@ -1400,6 +1401,7 @@ static int tg3_set_power_state(struct tg3 *tp, pci_power_t state)
tw32_wait_f(TG3PCI_CLOCK_CTRL, base_val | CLOCK_CTRL_ALTCLK |
CLOCK_CTRL_PWRDOWN_PLL133, 40);
} else if ((tp->tg3_flags2 & TG3_FLG2_5780_CLASS) ||
+ (tp->tg3_flags & TG3_FLAG_CPMU_PRESENT) ||
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906)) {
/* do nothing */
} else if (!((tp->tg3_flags2 & TG3_FLG2_5750_PLUS) &&
@@ -6147,11 +6149,13 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
/* This works around an issue with Athlon chipsets on
* B3 tigon3 silicon. This bit has no effect on any
* other revision. But do not set this on PCI Express
- * chips.
+ * chips and don't even touch the clocks if the CPMU is present.
*/
- if (!(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
- tp->pci_clock_ctrl |= CLOCK_CTRL_DELAY_PCI_GRANT;
- tw32_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
+ if (!(tp->tg3_flags & TG3_FLAG_CPMU_PRESENT)) {
+ if (!(tp->tg3_flags2 & TG3_FLG2_PCI_EXPRESS))
+ tp->pci_clock_ctrl |= CLOCK_CTRL_DELAY_PCI_GRANT;
+ tw32_f(TG3PCI_CLOCK_CTRL, tp->pci_clock_ctrl);
+ }
if (tp->pci_chip_rev_id == CHIPREV_ID_5704_A0 &&
(tp->tg3_flags & TG3_FLAG_PCIX_MODE)) {
@@ -10527,6 +10531,13 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
tp->pci_chip_rev_id = (misc_ctrl_reg >>
MISC_HOST_CTRL_CHIPREV_SHIFT);
+ if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_USE_PROD_ID_REG) {
+ u32 prod_id_asic_rev;
+
+ pci_read_config_dword(tp->pdev, TG3PCI_PRODID_ASICREV,
+ &prod_id_asic_rev);
+ tp->pci_chip_rev_id = prod_id_asic_rev & PROD_ID_ASIC_REV_MASK;
+ }
/* Wrong chip ID in 5752 A0. This code can be removed later
* as A0 is not in production.
diff --git a/drivers/net/tg3.h b/drivers/net/tg3.h
index c4f845dd1e8b..79ce68cf836b 100644
--- a/drivers/net/tg3.h
+++ b/drivers/net/tg3.h
@@ -121,6 +121,7 @@
#define ASIC_REV_5755 0x0a
#define ASIC_REV_5787 0x0b
#define ASIC_REV_5906 0x0c
+#define ASIC_REV_USE_PROD_ID_REG 0x0f
#define GET_CHIP_REV(CHIP_REV_ID) ((CHIP_REV_ID) >> 8)
#define CHIPREV_5700_AX 0x70
#define CHIPREV_5700_BX 0x71
@@ -214,7 +215,9 @@
#define TG3PCI_DUAL_MAC_CTRL 0x000000b8
#define DUAL_MAC_CTRL_CH_MASK 0x00000003
#define DUAL_MAC_CTRL_ID 0x00000004
-/* 0xbc --> 0x100 unused */
+#define TG3PCI_PRODID_ASICREV 0x000000bc
+#define PROD_ID_ASIC_REV_MASK 0x0fffffff
+/* 0xc0 --> 0x100 unused */
/* 0x100 --> 0x200 unused */
@@ -2213,7 +2216,7 @@ struct tg3 {
#define TG3_FLAG_JUMBO_RING_ENABLE 0x00800000
#define TG3_FLAG_10_100_ONLY 0x01000000
#define TG3_FLAG_PAUSE_AUTONEG 0x02000000
-
+#define TG3_FLAG_CPMU_PRESENT 0x04000000
#define TG3_FLAG_40BIT_DMA_BUG 0x08000000
#define TG3_FLAG_BROKEN_CHECKSUMS 0x10000000
#define TG3_FLAG_SUPPORT_MSI 0x20000000
@@ -2285,7 +2288,7 @@ struct tg3 {
u32 pwrmgmt_thresh;
/* PCI block */
- u16 pci_chip_rev_id;
+ u32 pci_chip_rev_id;
u8 pci_cacheline_sz;
u8 pci_lat_timer;
u8 pci_hdr_type;