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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2007-12-05 11:14:28 +1100
committerJeff Garzik <jeff@garzik.org>2007-12-07 15:09:06 -0500
commit1f57877a39105ec4d99d63d02058f6db6ca6abe0 (patch)
treee975e9f66a8b66687b66d32f00160c9fcc98d699
parent911b237d7d327db5371a762f4d8d8cd9ea763662 (diff)
ibm_newemac: Cleanup/Fix RGMII MDIO support detection
More than just "AXON" version of EMAC RGMII supports MDIO, so replace the current test with a generic property in the device-tree that indicates such support. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Stefan Roese <sr@denx.de> Signed-off-by: Jeff Garzik <jeff@garzik.org>
-rw-r--r--arch/powerpc/boot/dts/sequoia.dts1
-rw-r--r--drivers/net/ibm_newemac/rgmii.c20
-rw-r--r--drivers/net/ibm_newemac/rgmii.h5
3 files changed, 15 insertions, 11 deletions
diff --git a/arch/powerpc/boot/dts/sequoia.dts b/arch/powerpc/boot/dts/sequoia.dts
index 8833dfe2e8b..3d0dfaecc7b 100644
--- a/arch/powerpc/boot/dts/sequoia.dts
+++ b/arch/powerpc/boot/dts/sequoia.dts
@@ -245,6 +245,7 @@
device_type = "rgmii-interface";
compatible = "ibm,rgmii-440epx", "ibm,rgmii";
reg = <ef601000 8>;
+ has-mdio;
};
EMAC0: ethernet@ef600e00 {
diff --git a/drivers/net/ibm_newemac/rgmii.c b/drivers/net/ibm_newemac/rgmii.c
index de416951a43..32872697858 100644
--- a/drivers/net/ibm_newemac/rgmii.c
+++ b/drivers/net/ibm_newemac/rgmii.c
@@ -140,7 +140,7 @@ void rgmii_get_mdio(struct of_device *ofdev, int input)
RGMII_DBG2(dev, "get_mdio(%d)" NL, input);
- if (dev->type != RGMII_AXON)
+ if (!(dev->flags & EMAC_RGMII_FLAG_HAS_MDIO))
return;
mutex_lock(&dev->lock);
@@ -161,7 +161,7 @@ void rgmii_put_mdio(struct of_device *ofdev, int input)
RGMII_DBG2(dev, "put_mdio(%d)" NL, input);
- if (dev->type != RGMII_AXON)
+ if (!(dev->flags & EMAC_RGMII_FLAG_HAS_MDIO))
return;
fer = in_be32(&p->fer);
@@ -250,11 +250,13 @@ static int __devinit rgmii_probe(struct of_device *ofdev,
goto err_free;
}
- /* Check for RGMII type */
+ /* Check for RGMII flags */
+ if (of_get_property(ofdev->node, "has-mdio", NULL))
+ dev->flags |= EMAC_RGMII_FLAG_HAS_MDIO;
+
+ /* CAB lacks the right properties, fix this up */
if (of_device_is_compatible(ofdev->node, "ibm,rgmii-axon"))
- dev->type = RGMII_AXON;
- else
- dev->type = RGMII_STANDARD;
+ dev->flags |= EMAC_RGMII_FLAG_HAS_MDIO;
DBG2(dev, " Boot FER = 0x%08x, SSR = 0x%08x\n",
in_be32(&dev->base->fer), in_be32(&dev->base->ssr));
@@ -263,9 +265,9 @@ static int __devinit rgmii_probe(struct of_device *ofdev,
out_be32(&dev->base->fer, 0);
printk(KERN_INFO
- "RGMII %s %s initialized\n",
- dev->type == RGMII_STANDARD ? "standard" : "axon",
- ofdev->node->full_name);
+ "RGMII %s initialized with%s MDIO support\n",
+ ofdev->node->full_name,
+ (dev->flags & EMAC_RGMII_FLAG_HAS_MDIO) ? "" : "out");
wmb();
dev_set_drvdata(&ofdev->dev, dev);
diff --git a/drivers/net/ibm_newemac/rgmii.h b/drivers/net/ibm_newemac/rgmii.h
index 57806833121..44a0f201064 100644
--- a/drivers/net/ibm_newemac/rgmii.h
+++ b/drivers/net/ibm_newemac/rgmii.h
@@ -35,8 +35,9 @@ struct rgmii_regs {
struct rgmii_instance {
struct rgmii_regs __iomem *base;
- /* Type of RGMII bridge */
- int type;
+ /* RGMII bridge flags */
+ int flags;
+#define EMAC_RGMII_FLAG_HAS_MDIO 0x00000001
/* Only one EMAC whacks us at a time */
struct mutex lock;