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authorSandeep Gopalpet <Sandeep.Kumar@freescale.com>2009-11-02 07:03:22 +0000
committerDavid S. Miller <davem@davemloft.net>2009-11-02 23:40:57 -0800
commit1d2397d742b7a2b39b2f09dd9da3b9d1463f55e9 (patch)
tree987bfc7e0365278e1030cd318a9b9c1a7156d1a9
parentfba4ed030cfae7efdb6b79a57b0c5a9d72c9de83 (diff)
downloadlinux-2.6.34-ux500-1d2397d742b7a2b39b2f09dd9da3b9d1463f55e9.tar.gz
fsl_pq_mdio: Add Suport for etsec2.0 devices.
This patch adds mdio support for etsec2.0 devices. Modified the fsl_pq_mdio structure to include the new mdio members. Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/fsl_pq_mdio.c59
-rw-r--r--drivers/net/fsl_pq_mdio.h11
2 files changed, 57 insertions, 13 deletions
diff --git a/drivers/net/fsl_pq_mdio.c b/drivers/net/fsl_pq_mdio.c
index 6ac46486697..4065b7c01ec 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)
*
@@ -189,19 +190,29 @@ 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 +261,11 @@ 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;
u32 __iomem *tbipa;
struct mii_bus *new_bus;
int tbiaddr = -1;
- u64 addr, size;
+ u64 addr = 0, size = 0, ioremap_miimcfg = 0;
int err = 0;
new_bus = mdiobus_alloc();
@@ -268,8 +279,22 @@ static int fsl_pq_mdio_probe(struct of_device *ofdev,
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 (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" )) {
+ addr = of_translate_address(np, of_get_address(np, 0, &size, NULL));
+ ioremap_miimcfg = container_of(addr, struct fsl_pq_mdio, miimcfg);
+ regs = ioremap(ioremap_miimcfg, size +
+ offsetof(struct fsl_pq_mdio, miimcfg));
+ } 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, 0, &size, NULL));
+ regs = ioremap(addr, size);
+ } else {
+ err = -EINVAL;
+ goto err_free_bus;
+ }
if (NULL == regs) {
err = -ENOMEM;
@@ -290,9 +315,15 @@ 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;
@@ -405,6 +436,12 @@ 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);
diff --git a/drivers/net/fsl_pq_mdio.h b/drivers/net/fsl_pq_mdio.h
index 36dad527410..1f7d865cedb 100644
--- a/drivers/net/fsl_pq_mdio.h
+++ b/drivers/net/fsl_pq_mdio.h
@@ -3,8 +3,9 @@
* Driver for the MDIO bus controller on Freescale PowerQUICC processors
*
* Author: Andy Fleming
+ * Modifier: Sandeep Gopalpet
*
- * Copyright (c) 2002-2004,2008 Freescale Semiconductor, Inc.
+ * Copyright 2002-2004, 2008-2009 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -23,6 +24,12 @@
#define MII_READ_COMMAND 0x00000001
struct fsl_pq_mdio {
+ u8 res1[16];
+ u32 ieventm; /* MDIO Interrupt event register (for etsec2)*/
+ u32 imaskm; /* MDIO Interrupt mask register (for etsec2)*/
+ u8 res2[4];
+ u32 emapm; /* MDIO Event mapping register (for etsec2)*/
+ u8 res3[1280];
u32 miimcfg; /* MII management configuration reg */
u32 miimcom; /* MII management command reg */
u32 miimadd; /* MII management address reg */
@@ -31,9 +38,9 @@ struct fsl_pq_mdio {
u32 miimind; /* MII management indication reg */
u8 reserved[28]; /* Space holder */
u32 utbipar; /* TBI phy address reg (only on UCC) */
+ u8 res4[2728];
} __attribute__ ((packed));
-
int fsl_pq_mdio_read(struct mii_bus *bus, int mii_id, int regnum);
int fsl_pq_mdio_write(struct mii_bus *bus, int mii_id, int regnum, u16 value);
int fsl_pq_local_mdio_write(struct fsl_pq_mdio __iomem *regs, int mii_id,