diff options
Diffstat (limited to 'drivers/net/fsl_pq_mdio.c')
| -rw-r--r-- | drivers/net/fsl_pq_mdio.c | 67 |
1 files changed, 51 insertions, 16 deletions
diff --git a/drivers/net/fsl_pq_mdio.c b/drivers/net/fsl_pq_mdio.c index efbf67689ec..25fabb3eedc 100644 --- a/drivers/net/fsl_pq_mdio.c +++ b/drivers/net/fsl_pq_mdio.c @@ -3,8 +3,9 @@ * Provides Bus interface for MIIM regs * * Author: Andy Fleming <afleming@freescale.com> + * Modifier: Sandeep Gopalpet <sandeep.kumar@freescale.com> * - * Copyright (c) 2002-2004,2008 Freescale Semiconductor, Inc. + * Copyright 2002-2004, 2008-2009 Freescale Semiconductor, Inc. * * Based on gianfar_mii.c and ucc_geth_mii.c (Li Yang, Kim Phillips) * @@ -102,13 +103,18 @@ int fsl_pq_local_mdio_read(struct fsl_pq_mdio __iomem *regs, return value; } +static struct fsl_pq_mdio __iomem *fsl_pq_mdio_get_regs(struct mii_bus *bus) +{ + return (void __iomem __force *)bus->priv; +} + /* * Write value to the PHY at mii_id at register regnum, * on the bus, waiting until the write is done before returning. */ int fsl_pq_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value) { - struct fsl_pq_mdio __iomem *regs = (void __iomem *)bus->priv; + struct fsl_pq_mdio __iomem *regs = fsl_pq_mdio_get_regs(bus); /* Write to the local MII regs */ return(fsl_pq_local_mdio_write(regs, mii_id, regnum, value)); @@ -120,7 +126,7 @@ int fsl_pq_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value) */ int fsl_pq_mdio_read(struct mii_bus *bus, int mii_id, int regnum) { - struct fsl_pq_mdio __iomem *regs = (void __iomem *)bus->priv; + struct fsl_pq_mdio __iomem *regs = fsl_pq_mdio_get_regs(bus); /* Read the local MII regs */ return(fsl_pq_local_mdio_read(regs, mii_id, regnum)); @@ -129,7 +135,7 @@ int fsl_pq_mdio_read(struct mii_bus *bus, int mii_id, int regnum) /* Reset the MIIM registers, and wait for the bus to free */ static int fsl_pq_mdio_reset(struct mii_bus *bus) { - struct fsl_pq_mdio __iomem *regs = (void __iomem *)bus->priv; + struct fsl_pq_mdio __iomem *regs = fsl_pq_mdio_get_regs(bus); int timeout = PHY_INIT_TIMEOUT; mutex_lock(&bus->mdio_lock); @@ -189,19 +195,29 @@ static int fsl_pq_mdio_find_free(struct mii_bus *new_bus) #if defined(CONFIG_GIANFAR) || defined(CONFIG_GIANFAR_MODULE) -static u32 __iomem *get_gfar_tbipa(struct fsl_pq_mdio __iomem *regs) +static u32 __iomem *get_gfar_tbipa(struct fsl_pq_mdio __iomem *regs, struct device_node *np) { struct gfar __iomem *enet_regs; + u32 __iomem *ioremap_tbipa; + u64 addr, size; /* * This is mildly evil, but so is our hardware for doing this. * Also, we have to cast back to struct gfar because of * definition weirdness done in gianfar.h. */ - enet_regs = (struct gfar __iomem *) - ((char __iomem *)regs - offsetof(struct gfar, gfar_mii_regs)); - - return &enet_regs->tbipa; + if(of_device_is_compatible(np, "fsl,gianfar-mdio") || + of_device_is_compatible(np, "fsl,gianfar-tbi") || + of_device_is_compatible(np, "gianfar")) { + enet_regs = (struct gfar __iomem *)regs; + return &enet_regs->tbipa; + } else if (of_device_is_compatible(np, "fsl,etsec2-mdio") || + of_device_is_compatible(np, "fsl,etsec2-tbi")) { + addr = of_translate_address(np, of_get_address(np, 1, &size, NULL)); + ioremap_tbipa = ioremap(addr, size); + return ioremap_tbipa; + } else + return NULL; } #endif @@ -250,11 +266,12 @@ static int fsl_pq_mdio_probe(struct of_device *ofdev, { struct device_node *np = ofdev->node; struct device_node *tbi; - struct fsl_pq_mdio __iomem *regs; + struct fsl_pq_mdio __iomem *regs = NULL; + void __iomem *map; u32 __iomem *tbipa; struct mii_bus *new_bus; int tbiaddr = -1; - u64 addr, size; + u64 addr = 0, size = 0; int err = 0; new_bus = mdiobus_alloc(); @@ -269,13 +286,19 @@ static int fsl_pq_mdio_probe(struct of_device *ofdev, /* Set the PHY base address */ addr = of_translate_address(np, of_get_address(np, 0, &size, NULL)); - regs = ioremap(addr, size); - - if (NULL == regs) { + map = ioremap(addr, size); + if (!map) { err = -ENOMEM; goto err_free_bus; } + if (of_device_is_compatible(np, "fsl,gianfar-mdio") || + of_device_is_compatible(np, "fsl,gianfar-tbi") || + of_device_is_compatible(np, "fsl,ucc-mdio") || + of_device_is_compatible(np, "ucc_geth_phy")) + map -= offsetof(struct fsl_pq_mdio, miimcfg); + regs = map; + new_bus->priv = (void __force *)regs; new_bus->irq = kcalloc(PHY_MAX_ADDR, sizeof(int), GFP_KERNEL); @@ -290,9 +313,15 @@ static int fsl_pq_mdio_probe(struct of_device *ofdev, if (of_device_is_compatible(np, "fsl,gianfar-mdio") || of_device_is_compatible(np, "fsl,gianfar-tbi") || + of_device_is_compatible(np, "fsl,etsec2-mdio") || + of_device_is_compatible(np, "fsl,etsec2-tbi") || of_device_is_compatible(np, "gianfar")) { #if defined(CONFIG_GIANFAR) || defined(CONFIG_GIANFAR_MODULE) - tbipa = get_gfar_tbipa(regs); + tbipa = get_gfar_tbipa(regs, np); + if (!tbipa) { + err = -EINVAL; + goto err_free_irqs; + } #else err = -ENODEV; goto err_free_irqs; @@ -380,7 +409,7 @@ static int fsl_pq_mdio_remove(struct of_device *ofdev) dev_set_drvdata(device, NULL); - iounmap((void __iomem *)bus->priv); + iounmap(fsl_pq_mdio_get_regs(bus)); bus->priv = NULL; mdiobus_free(bus); @@ -405,6 +434,12 @@ static struct of_device_id fsl_pq_mdio_match[] = { { .compatible = "fsl,gianfar-mdio", }, + { + .compatible = "fsl,etsec2-tbi", + }, + { + .compatible = "fsl,etsec2-mdio", + }, {}, }; MODULE_DEVICE_TABLE(of, fsl_pq_mdio_match); |