tg3: phy tmp variable roundup
The tg3's phy routines define temporary variables in many locations
within the same routine. This patch unifies all temporary variables
into one location.
Reviewed-by: Benjamin Li <benli@broadcom.com>
Reviewed-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index 0d0deaa..e7a2ba8 100644
--- a/drivers/net/tg3.c
+++ b/drivers/net/tg3.c
@@ -1917,19 +1917,16 @@
*/
static int tg3_phy_reset(struct tg3 *tp)
{
- u32 cpmuctrl;
- u32 phy_status;
+ u32 val, cpmuctrl;
int err;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
- u32 val;
-
val = tr32(GRC_MISC_CFG);
tw32_f(GRC_MISC_CFG, val & ~GRC_MISC_CFG_EPHY_IDDQ);
udelay(40);
}
- err = tg3_readphy(tp, MII_BMSR, &phy_status);
- err |= tg3_readphy(tp, MII_BMSR, &phy_status);
+ err = tg3_readphy(tp, MII_BMSR, &val);
+ err |= tg3_readphy(tp, MII_BMSR, &val);
if (err != 0)
return -EBUSY;
@@ -1961,18 +1958,14 @@
return err;
if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY) {
- u32 phy;
-
- phy = MII_TG3_DSP_EXP8_AEDW | MII_TG3_DSP_EXP8_REJ2MHz;
- tg3_phydsp_write(tp, MII_TG3_DSP_EXP8, phy);
+ val = MII_TG3_DSP_EXP8_AEDW | MII_TG3_DSP_EXP8_REJ2MHz;
+ tg3_phydsp_write(tp, MII_TG3_DSP_EXP8, val);
tw32(TG3_CPMU_CTRL, cpmuctrl);
}
if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5761_AX) {
- u32 val;
-
val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
if ((val & CPMU_LSPD_1000MB_MACCLK_MASK) ==
CPMU_LSPD_1000MB_MACCLK_12_5) {
@@ -2028,23 +2021,19 @@
/* Cannot do read-modify-write on 5401 */
tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4c20);
} else if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
- u32 phy_reg;
-
/* Set bit 14 with read-modify-write to preserve other bits */
if (!tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x0007) &&
- !tg3_readphy(tp, MII_TG3_AUX_CTRL, &phy_reg))
- tg3_writephy(tp, MII_TG3_AUX_CTRL, phy_reg | 0x4000);
+ !tg3_readphy(tp, MII_TG3_AUX_CTRL, &val))
+ tg3_writephy(tp, MII_TG3_AUX_CTRL, val | 0x4000);
}
/* Set phy register 0x10 bit 0 to high fifo elasticity to support
* jumbo frames transmission.
*/
if (tp->tg3_flags & TG3_FLAG_JUMBO_CAPABLE) {
- u32 phy_reg;
-
- if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &phy_reg))
+ if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &val))
tg3_writephy(tp, MII_TG3_EXT_CTRL,
- phy_reg | MII_TG3_EXT_CTRL_FIFO_ELASTIC);
+ val | MII_TG3_EXT_CTRL_FIFO_ELASTIC);
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
@@ -3060,7 +3049,7 @@
static int tg3_setup_copper_phy(struct tg3 *tp, int force_reset)
{
int current_link_up;
- u32 bmsr, dummy;
+ u32 bmsr, val;
u32 lcl_adv, rmt_adv;
u16 current_speed;
u8 current_duplex;
@@ -3140,8 +3129,8 @@
}
/* Clear pending interrupts... */
- tg3_readphy(tp, MII_TG3_ISTAT, &dummy);
- tg3_readphy(tp, MII_TG3_ISTAT, &dummy);
+ tg3_readphy(tp, MII_TG3_ISTAT, &val);
+ tg3_readphy(tp, MII_TG3_ISTAT, &val);
if (tp->phy_flags & TG3_PHYFLG_USE_MI_INTERRUPT)
tg3_writephy(tp, MII_TG3_IMASK, ~MII_TG3_INT_LINKCHG);
@@ -3162,8 +3151,6 @@
current_duplex = DUPLEX_INVALID;
if (tp->phy_flags & TG3_PHYFLG_CAPACITIVE_COUPLING) {
- u32 val;
-
tg3_writephy(tp, MII_TG3_AUX_CTRL, 0x4007);
tg3_readphy(tp, MII_TG3_AUX_CTRL, &val);
if (!(val & (1 << 10))) {
@@ -3238,13 +3225,11 @@
relink:
if (current_link_up == 0 || (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER)) {
- u32 tmp;
-
tg3_phy_copper_begin(tp);
- tg3_readphy(tp, MII_BMSR, &tmp);
- if (!tg3_readphy(tp, MII_BMSR, &tmp) &&
- (tmp & BMSR_LSTATUS))
+ tg3_readphy(tp, MII_BMSR, &bmsr);
+ if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
+ (bmsr & BMSR_LSTATUS))
current_link_up = 1;
}