netdev - [PATCH] MII bitbang driver should generate MII bus phy

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Message-Id: <1181548417.5217.13.camel@mark>
Date:	Mon, 11 Jun 2007 15:53:37 +0800
From:	Mark Zhan <rongkai.zhan@...driver.com>
To:	netdev@...r.kernel.org
Cc:	"linuxppc-dev@...abs.org" <linuxppc-dev@...abs.org>,
	Vitaly Bordug <vbordug@...mvista.com>
Subject: [PATCH] MII bitbang driver should generate MII bus phy_mask
	dynamically

Current MII bitbang bus driver hard-codes the phy mask of mii_bus to
~0x09, which is actually specific to the FSL boards. This patch will
make the bitbang driver to generate MII bus phy_mask dynamically, by the
PHY irq info provided by the platform.

Signed-off-by: Mark Zhan <rongkai.zhan@...driver.com>
---
 b/drivers/net/fs_enet/mii-bitbang.c |    9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/fs_enet/mii-bitbang.c
b/drivers/net/fs_enet/mii-bitbang.c
index d384010..3732d69 100644
--- a/drivers/net/fs_enet/mii-bitbang.c
+++ b/drivers/net/fs_enet/mii-bitbang.c
@@ -315,7 +315,7 @@ static int __devinit fs_enet_mdio_probe(
 	struct fs_mii_bb_platform_info *pdata;
 	struct mii_bus *new_bus;
 	struct bb_info *bitbang;
-	int err = 0;
+	int i, err = 0;
 
 	if (NULL == dev)
 		return -EINVAL;
@@ -336,14 +336,17 @@ static int __devinit fs_enet_mdio_probe(
 	new_bus->reset = &fs_enet_mii_bb_reset,
 	new_bus->id = pdev->id;
 
-	new_bus->phy_mask = ~0x9;
 	pdata = (struct fs_mii_bb_platform_info *)pdev->dev.platform_data;
-
 	if (NULL == pdata) {
 		printk(KERN_ERR "gfar mdio %d: Missing platform data!\n", pdev->id);
 		return -ENODEV;
 	}
 
+	new_bus->phy_mask = 0xFFFFFFFF;
+	for (i = 0; i < PHY_MAX_ADDR; i++)
+		if (pdata->irq[i] != -1)
+			new_bus->phy_mask &= ~(1 << i);
+
 	/*set up workspace*/
 	fs_mii_bitbang_init(bitbang, pdata);
 

-
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