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net: gem: Use wait_for_bit() instead of private mdio_wait()

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Using generic wait_for_bit() implementation instead of
using private wait function.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
This commit is contained in:
Michal Simek 2016-12-12 09:47:26 +01:00
parent 3cd42180a8
commit b908fcad84
1 changed files with 9 additions and 23 deletions
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32
drivers/net/zynq_gem.c
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@ -183,33 +183,17 @@ struct zynq_gem_priv {
struct mii_dev *bus;
};
static inline int mdio_wait(struct zynq_gem_regs *regs)
{
u32 timeout = 20000;
/* Wait till MDIO interface is ready to accept a new transaction. */
while (--timeout) {
if (readl(&regs->nwsr) & ZYNQ_GEM_NWSR_MDIOIDLE_MASK)
break;
WATCHDOG_RESET();
}
if (!timeout) {
printf("%s: Timeout\n", __func__);
return 1;
}
return 0;
}
static u32 phy_setup_op(struct zynq_gem_priv *priv, u32 phy_addr, u32 regnum,
u32 op, u16 *data)
{
u32 mgtcr;
struct zynq_gem_regs *regs = priv->iobase;
int err;
if (mdio_wait(regs))
return 1;
err = wait_for_bit(__func__, &regs->nwsr, ZYNQ_GEM_NWSR_MDIOIDLE_MASK,
true, 20000, true);
if (err)
return err;
/* Construct mgtcr mask for the operation */
mgtcr = ZYNQ_GEM_PHYMNTNC_OP_MASK | op |
@ -219,8 +203,10 @@ static u32 phy_setup_op(struct zynq_gem_priv *priv, u32 phy_addr, u32 regnum,
/* Write mgtcr and wait for completion */
writel(mgtcr, &regs->phymntnc);
if (mdio_wait(regs))
return 1;
err = wait_for_bit(__func__, &regs->nwsr, ZYNQ_GEM_NWSR_MDIOIDLE_MASK,
true, 20000, true);
if (err)
return err;
if (op == ZYNQ_GEM_PHYMNTNC_OP_R_MASK)
*data = readl(&regs->phymntnc);