DM9000: Add platform data to specify external phy

Patch from: Laurent Pinchart <laurentp@cse-semaphore.com>

This patch adds a flag to the DM9000 platform data which, when set,
configures the device to use an external PHY.

Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Signed-off-by: Ben Dooks <ben-linuy@fluff.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

2 files changed, 7 insertions, 0 deletions

diff --git a/drivers/net/dm9000.c b/drivers/net/dm9000.c
index e4390d917b81..b5e47dfa5529 100644
--- a/drivers/net/dm9000.c
+++ b/drivers/net/dm9000.c
@@ -137,6 +137,7 @@ typedef struct board_info {
         u16 dbug_cnt;
         u8 io_mode;             /* 0:word, 2:byte */
         u8 phy_addr;
+        unsigned int flags;
 
         void (*inblk)(void __iomem *port, void *data, int length);
         void (*outblk)(void __iomem *port, void *data, int length);
@@ -525,6 +526,8 @@ dm9000_probe(struct platform_device *pdev)
 
                 if (pdata->dumpblk != NULL)
                         db->dumpblk = pdata->dumpblk;
+
+                db->flags = pdata->flags;
         }
 
         dm9000_reset(db);
@@ -665,6 +668,9 @@ dm9000_init_dm9000(struct net_device *dev)
         iow(db, DM9000_GPCR, GPCR_GEP_CNTL);    /* Let GPIO0 output */
         iow(db, DM9000_GPR, 0); /* Enable PHY */
 
+        if (db->flags & DM9000_PLATF_EXT_PHY)
+                iow(db, DM9000_NCR, NCR_EXT_PHY);
+
         /* Program operating register */
         iow(db, DM9000_TCR, 0);         /* TX Polling clear */
         iow(db, DM9000_BPTR, 0x3f);     /* Less 3Kb, 200us */
diff --git a/include/linux/dm9000.h b/include/linux/dm9000.h
index 0008e2ad0c9f..ea530fd1be74 100644
--- a/include/linux/dm9000.h
+++ b/include/linux/dm9000.h
@@ -19,6 +19,7 @@
 #define DM9000_PLATF_8BITONLY   (0x0001)
 #define DM9000_PLATF_16BITONLY  (0x0002)
 #define DM9000_PLATF_32BITONLY  (0x0004)
+#define DM9000_PLATF_EXT_PHY    (0x0008)
 
 /* platfrom data for platfrom device structure's platfrom_data field */