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path: root/drivers/net/fsl_pq_mdio.c
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Diffstat (limited to 'drivers/net/fsl_pq_mdio.c')
-rw-r--r--drivers/net/fsl_pq_mdio.c93
1 files changed, 73 insertions, 20 deletions
diff --git a/drivers/net/fsl_pq_mdio.c b/drivers/net/fsl_pq_mdio.c
index d167090248e2..d5160edf2fcf 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)
*
@@ -45,6 +46,11 @@
#include "gianfar.h"
#include "fsl_pq_mdio.h"
+struct fsl_pq_mdio_priv {
+ void __iomem *map;
+ struct fsl_pq_mdio __iomem *regs;
+};
+
/*
* Write value to the PHY at mii_id at register regnum,
* on the bus attached to the local interface, which may be different from the
@@ -102,13 +108,20 @@ 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)
+{
+ struct fsl_pq_mdio_priv *priv = bus->priv;
+
+ return priv->regs;
+}
+
/*
* 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 +133,7 @@ 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 +142,7 @@ 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 +202,29 @@ 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
@@ -250,33 +273,46 @@ 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_priv *priv;
+ 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;
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
new_bus = mdiobus_alloc();
if (NULL == new_bus)
- return -ENOMEM;
+ goto err_free_priv;
new_bus->name = "Freescale PowerQUICC MII Bus",
new_bus->read = &fsl_pq_mdio_read,
new_bus->write = &fsl_pq_mdio_write,
new_bus->reset = &fsl_pq_mdio_reset,
+ new_bus->priv = priv;
fsl_pq_mdio_bus_name(new_bus->id, np);
/* 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;
}
+ priv->map = map;
- new_bus->priv = (void __force *)regs;
+ 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;
+ priv->regs = regs;
new_bus->irq = kcalloc(PHY_MAX_ADDR, sizeof(int), GFP_KERNEL);
@@ -290,9 +326,15 @@ 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;
@@ -363,10 +405,11 @@ static int fsl_pq_mdio_probe(struct of_device *ofdev,
err_free_irqs:
kfree(new_bus->irq);
err_unmap_regs:
- iounmap(regs);
+ iounmap(priv->map);
err_free_bus:
kfree(new_bus);
-
+err_free_priv:
+ kfree(priv);
return err;
}
@@ -375,14 +418,16 @@ static int fsl_pq_mdio_remove(struct of_device *ofdev)
{
struct device *device = &ofdev->dev;
struct mii_bus *bus = dev_get_drvdata(device);
+ struct fsl_pq_mdio_priv *priv = bus->priv;
mdiobus_unregister(bus);
dev_set_drvdata(device, NULL);
- iounmap((void __iomem *)bus->priv);
+ iounmap(priv->map);
bus->priv = NULL;
mdiobus_free(bus);
+ kfree(priv);
return 0;
}
@@ -405,8 +450,15 @@ 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);
static struct of_platform_driver fsl_pq_mdio_driver = {
.name = "fsl-pq_mdio",
@@ -426,3 +478,4 @@ void fsl_pq_mdio_exit(void)
of_unregister_platform_driver(&fsl_pq_mdio_driver);
}
module_exit(fsl_pq_mdio_exit);
+MODULE_LICENSE("GPL");
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2025-04-27 16:28:26 +0200