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From c7f65cdff49e6a3e186bb1e43fa50289a662619b Mon Sep 17 00:00:00 2001
From: Robert Nelson <robertcnelson@gmail.com>
Date: Thu, 29 Sep 2011 11:52:45 -0500
Subject: [PATCH 11/14] ksz8851 make sure is awake before writing mac
Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
---
drivers/net/ethernet/micrel/ks8851.c | 9 ++++++++-
drivers/net/ethernet/micrel/ks8851.h | 2 +-
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/micrel/ks8851.c b/drivers/net/ethernet/micrel/ks8851.c
index 347f38f..4f68517 100644
--- a/drivers/net/ethernet/micrel/ks8851.c
+++ b/drivers/net/ethernet/micrel/ks8851.c
@@ -351,8 +351,15 @@ static int ks8851_write_mac_addr(struct net_device *dev)
mutex_lock(&ks->lock);
+ /*
+ * Wake up chip in case it was powered off when stopped; otherwise,
+ * the first write to the MAC address does not take effect.
+ */
+ ks8851_set_powermode(ks, PMECR_PM_NORMAL);
for (i = 0; i < ETH_ALEN; i++)
ks8851_wrreg8(ks, KS_MAR(i), dev->dev_addr[i]);
+ if (!netif_running(dev))
+ ks8851_set_powermode(ks, PMECR_PM_SOFTDOWN);
mutex_unlock(&ks->lock);
@@ -1699,7 +1706,6 @@ static int __devinit ks8851_probe(struct spi_device *spi)
ks->netdev = ndev;
ks->spidev = spi;
- ks->tx_space = 6144;
mutex_init(&ks->lock);
spin_lock_init(&ks->statelock);
@@ -1771,6 +1777,7 @@ static int __devinit ks8851_probe(struct spi_device *spi)
/* cache the contents of the CCR register for EEPROM, etc. */
ks->rc_ccr = ks8851_rdreg16(ks, KS_CCR);
+ ks->tx_space = ks8851_rdreg16(ks, KS_TXMIR);
ks8851_read_selftest(ks);
ks8851_init_mac(ks);
diff --git a/drivers/net/ethernet/micrel/ks8851.h b/drivers/net/ethernet/micrel/ks8851.h
index bc2476e..d39ce97 100644
--- a/drivers/net/ethernet/micrel/ks8851.h
+++ b/drivers/net/ethernet/micrel/ks8851.h
@@ -23,7 +23,7 @@
#define CCR_32PIN (1 << 0)
/* MAC address registers */
-#define KS_MAR(_m) 0x15 - (_m)
+#define KS_MAR(_m) (0x15 - (_m))
#define KS_MARL 0x10
#define KS_MARM 0x12
#define KS_MARH 0x14
--
1.7.7.4
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