From 22f6bba77fc4aa80ffea31f4c1009993f98aa020 Mon Sep 17 00:00:00 2001 From: Shaohui Xie Date: Wed, 21 Jan 2015 19:08:32 +0800 Subject: [PATCH] net/fsl: Replace spin_event_timeout() with arch independent in xgmac_mdio spin_event_timeout() is PPC dependent, use an arch independent equivalent instead. Signed-off-by: Shaohui Xie Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/xgmac_mdio.c | 24 ++++++++++++++++-------- 1 file changed, 16 insertions(+), 8 deletions(-) diff --git a/drivers/net/ethernet/freescale/xgmac_mdio.c b/drivers/net/ethernet/freescale/xgmac_mdio.c index ab9a6bf..3a83bc2 100644 --- a/drivers/net/ethernet/freescale/xgmac_mdio.c +++ b/drivers/net/ethernet/freescale/xgmac_mdio.c @@ -52,12 +52,16 @@ struct tgec_mdio_controller { static int xgmac_wait_until_free(struct device *dev, struct tgec_mdio_controller __iomem *regs) { - uint32_t status; + unsigned int timeout; /* Wait till the bus is free */ - status = spin_event_timeout( - !((ioread32be(®s->mdio_stat)) & MDIO_STAT_BSY), TIMEOUT, 0); - if (!status) { + timeout = TIMEOUT; + while ((ioread32be(®s->mdio_stat) & MDIO_STAT_BSY) && timeout) { + cpu_relax(); + timeout--; + } + + if (!timeout) { dev_err(dev, "timeout waiting for bus to be free\n"); return -ETIMEDOUT; } @@ -71,12 +75,16 @@ static int xgmac_wait_until_free(struct device *dev, static int xgmac_wait_until_done(struct device *dev, struct tgec_mdio_controller __iomem *regs) { - uint32_t status; + unsigned int timeout; /* Wait till the MDIO write is complete */ - status = spin_event_timeout( - !((ioread32be(®s->mdio_data)) & MDIO_DATA_BSY), TIMEOUT, 0); - if (!status) { + timeout = TIMEOUT; + while ((ioread32be(®s->mdio_data) & MDIO_DATA_BSY) && timeout) { + cpu_relax(); + timeout--; + } + + if (!timeout) { dev_err(dev, "timeout waiting for operation to complete\n"); return -ETIMEDOUT; } -- 2.7.4