diff options
| author | Claudiu Manoil <claudiu.manoil@freescale.com> | 2014-03-24 10:22:55 (GMT) |
|---|---|---|
| committer | Matthew Weigel <Matthew.Weigel@freescale.com> | 2014-12-11 18:37:54 (GMT) |
| commit | 241be10a232afe995aad827d99a49f818c9a5ce2 (patch) | |
| tree | 5b9003cc7314985c4ef31226d27e0e3770735b26 | |
| parent | ceface9cf7e94849abcab857b99fea268493bbde (diff) | |
| download | linux-fsl-qoriq-241be10a232afe995aad827d99a49f818c9a5ce2.tar.xz | |
net/fsl_pq_mdio: Replace spin_event_timeout() with arch independent
spin_event_timeout() is PPC dependent, use an arch independent
equivalent instead.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
---
Cherry-picked from commit: e4b081f543030fc0b23d2cd7d1f6e3ac69d7f47f
---
Change-Id: I0eee676e14600fbea105f888dfecb00f32309dad
Reviewed-on: http://git.am.freescale.net:8181/21167
Tested-by: Review Code-CDREVIEW <CDREVIEW@freescale.com>
Reviewed-by: Zhengxiong Jin <Jason.Jin@freescale.com>
| -rw-r--r-- | drivers/net/ethernet/freescale/fsl_pq_mdio.c | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/drivers/net/ethernet/freescale/fsl_pq_mdio.c b/drivers/net/ethernet/freescale/fsl_pq_mdio.c index 7704046..d31302a 100644 --- a/drivers/net/ethernet/freescale/fsl_pq_mdio.c +++ b/drivers/net/ethernet/freescale/fsl_pq_mdio.c @@ -103,7 +103,7 @@ static int fsl_pq_mdio_write(struct mii_bus *bus, int mii_id, int regnum, { struct fsl_pq_mdio_priv *priv = bus->priv; struct fsl_pq_mii __iomem *regs = priv->regs; - u32 status; + unsigned int timeout; /* Set the PHY address and the register address we want to write */ iowrite32be((mii_id << 8) | regnum, ®s->miimadd); @@ -112,10 +112,13 @@ static int fsl_pq_mdio_write(struct mii_bus *bus, int mii_id, int regnum, iowrite32be(value, ®s->miimcon); /* Wait for the transaction to finish */ - status = spin_event_timeout(!(ioread32be(®s->miimind) & - MIIMIND_BUSY), MII_TIMEOUT, 0); + timeout = MII_TIMEOUT; + while ((ioread32be(®s->miimind) & MIIMIND_BUSY) && timeout) { + cpu_relax(); + timeout--; + } - return status ? 0 : -ETIMEDOUT; + return timeout ? 0 : -ETIMEDOUT; } /* @@ -132,7 +135,7 @@ static int fsl_pq_mdio_read(struct mii_bus *bus, int mii_id, int regnum) { struct fsl_pq_mdio_priv *priv = bus->priv; struct fsl_pq_mii __iomem *regs = priv->regs; - u32 status; + unsigned int timeout; u16 value; /* Set the PHY address and the register address we want to read */ @@ -143,10 +146,14 @@ static int fsl_pq_mdio_read(struct mii_bus *bus, int mii_id, int regnum) iowrite32be(MII_READ_COMMAND, ®s->miimcom); /* Wait for the transaction to finish, normally less than 100us */ - status = spin_event_timeout(!(ioread32be(®s->miimind) & - (MIIMIND_NOTVALID | MIIMIND_BUSY)), - MII_TIMEOUT, 0); - if (!status) + timeout = MII_TIMEOUT; + while ((ioread32be(®s->miimind) & + (MIIMIND_NOTVALID | MIIMIND_BUSY)) && timeout) { + cpu_relax(); + timeout--; + } + + if (!timeout) return -ETIMEDOUT; /* Grab the value of the register from miimstat */ @@ -161,7 +168,7 @@ static int fsl_pq_mdio_reset(struct mii_bus *bus) { struct fsl_pq_mdio_priv *priv = bus->priv; struct fsl_pq_mii __iomem *regs = priv->regs; - u32 status; + unsigned int timeout; mutex_lock(&bus->mdio_lock); @@ -172,12 +179,15 @@ static int fsl_pq_mdio_reset(struct mii_bus *bus) iowrite32be(MIIMCFG_INIT_VALUE, ®s->miimcfg); /* Wait until the bus is free */ - status = spin_event_timeout(!(ioread32be(®s->miimind) & - MIIMIND_BUSY), MII_TIMEOUT, 0); + timeout = MII_TIMEOUT; + while ((ioread32be(®s->miimind) & MIIMIND_BUSY) && timeout) { + cpu_relax(); + timeout--; + } mutex_unlock(&bus->mdio_lock); - if (!status) { + if (!timeout) { dev_err(&bus->dev, "timeout waiting for MII bus\n"); return -EBUSY; } |