diff options
Diffstat (limited to 'drivers/net/tg3.c')
| -rw-r--r-- | drivers/net/tg3.c | 63 |
1 files changed, 52 insertions, 11 deletions
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c index 6f1f36c89055..4137e4e027a3 100644 --- a/drivers/net/tg3.c +++ b/drivers/net/tg3.c @@ -608,7 +608,7 @@ static void tg3_read_mem(struct tg3 *tp, u32 off, u32 *val) static void tg3_ape_lock_init(struct tg3 *tp) { int i; - u32 regbase; + u32 regbase, bit; if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761) regbase = TG3_APE_LOCK_GRANT; @@ -616,20 +616,34 @@ static void tg3_ape_lock_init(struct tg3 *tp) regbase = TG3_APE_PER_LOCK_GRANT; /* Make sure the driver hasn't any stale locks. */ - for (i = 0; i < 8; i++) + for (i = 0; i < 8; i++) { + if (i == TG3_APE_LOCK_GPIO) + continue; tg3_ape_write32(tp, regbase + 4 * i, APE_LOCK_GRANT_DRIVER); + } + + /* Clear the correct bit of the GPIO lock too. */ + if (!tp->pci_fn) + bit = APE_LOCK_GRANT_DRIVER; + else + bit = 1 << tp->pci_fn; + + tg3_ape_write32(tp, regbase + 4 * TG3_APE_LOCK_GPIO, bit); } static int tg3_ape_lock(struct tg3 *tp, int locknum) { int i, off; int ret = 0; - u32 status, req, gnt; + u32 status, req, gnt, bit; if (!tg3_flag(tp, ENABLE_APE)) return 0; switch (locknum) { + case TG3_APE_LOCK_GPIO: + if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761) + return 0; case TG3_APE_LOCK_GRC: case TG3_APE_LOCK_MEM: break; @@ -647,21 +661,24 @@ static int tg3_ape_lock(struct tg3 *tp, int locknum) off = 4 * locknum; - tg3_ape_write32(tp, req + off, APE_LOCK_REQ_DRIVER); + if (locknum != TG3_APE_LOCK_GPIO || !tp->pci_fn) + bit = APE_LOCK_REQ_DRIVER; + else + bit = 1 << tp->pci_fn; + + tg3_ape_write32(tp, req + off, bit); /* Wait for up to 1 millisecond to acquire lock. */ for (i = 0; i < 100; i++) { status = tg3_ape_read32(tp, gnt + off); - if (status == APE_LOCK_GRANT_DRIVER) + if (status == bit) break; udelay(10); } - if (status != APE_LOCK_GRANT_DRIVER) { + if (status != bit) { /* Revoke the lock request. */ - tg3_ape_write32(tp, gnt + off, - APE_LOCK_GRANT_DRIVER); - + tg3_ape_write32(tp, gnt + off, bit); ret = -EBUSY; } @@ -670,12 +687,15 @@ static int tg3_ape_lock(struct tg3 *tp, int locknum) static void tg3_ape_unlock(struct tg3 *tp, int locknum) { - u32 gnt; + u32 gnt, bit; if (!tg3_flag(tp, ENABLE_APE)) return; switch (locknum) { + case TG3_APE_LOCK_GPIO: + if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5761) + return; case TG3_APE_LOCK_GRC: case TG3_APE_LOCK_MEM: break; @@ -688,7 +708,12 @@ static void tg3_ape_unlock(struct tg3 *tp, int locknum) else gnt = TG3_APE_PER_LOCK_GRANT; - tg3_ape_write32(tp, gnt + 4 * locknum, APE_LOCK_GRANT_DRIVER); + if (locknum != TG3_APE_LOCK_GPIO || !tp->pci_fn) + bit = APE_LOCK_GRANT_DRIVER; + else + bit = 1 << tp->pci_fn; + + tg3_ape_write32(tp, gnt + 4 * locknum, bit); } static void tg3_disable_ints(struct tg3 *tp) @@ -2170,11 +2195,16 @@ out: static inline int tg3_pwrsrc_switch_to_vmain(struct tg3 *tp) { if (!tg3_flag(tp, IS_NIC)) + return; + + if (tg3_ape_lock(tp, TG3_APE_LOCK_GPIO)) return 0; tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl, TG3_GRC_LCLCTL_PWRSW_DELAY); + tg3_ape_unlock(tp, TG3_APE_LOCK_GPIO); + return 0; } @@ -2187,6 +2217,10 @@ static void tg3_pwrsrc_die_with_vmain(struct tg3 *tp) GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) return; + + if (tg3_ape_lock(tp, TG3_APE_LOCK_GPIO)) + return; + grc_local_ctrl = tp->grc_local_ctrl | GRC_LCLCTRL_GPIO_OE1; tw32_wait_f(GRC_LOCAL_CTRL, @@ -2200,6 +2234,8 @@ static void tg3_pwrsrc_die_with_vmain(struct tg3 *tp) tw32_wait_f(GRC_LOCAL_CTRL, grc_local_ctrl | GRC_LCLCTRL_GPIO_OUTPUT1, TG3_GRC_LCLCTL_PWRSW_DELAY); + + tg3_ape_unlock(tp, TG3_APE_LOCK_GPIO); } static void tg3_pwrsrc_switch_to_vaux(struct tg3 *tp) @@ -2207,6 +2243,9 @@ static void tg3_pwrsrc_switch_to_vaux(struct tg3 *tp) if (!tg3_flag(tp, IS_NIC)) return; + if (tg3_ape_lock(tp, TG3_APE_LOCK_GPIO)) + return; + if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 || GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) { tw32_wait_f(GRC_LOCAL_CTRL, tp->grc_local_ctrl | @@ -2277,6 +2316,8 @@ static void tg3_pwrsrc_switch_to_vaux(struct tg3 *tp) TG3_GRC_LCLCTL_PWRSW_DELAY); } } + + tg3_ape_unlock(tp, TG3_APE_LOCK_GPIO); } static void tg3_frob_aux_power(struct tg3 *tp) |