From 2bcff60f7ce88c09a2bc1302ff14510737bfcb7b Mon Sep 17 00:00:00 2001 From: Dale Farnsworth Date: Fri, 28 Sep 2007 06:30:43 -0700 Subject: [PATCH] mv643xx_eth: Check ETH_INT_CAUSE_STATE bit Commit 468d09f8946d40228c56de26fe4874b2f98067ed masked the "state" interrupt (bit 20 of the cause register). This results in Radstone's PPC7D repeatedly re-entering the interrupt routine, locking up the board. The following patch returns the required handling for this interrupt. Signed-off-by: Martyn Welch Signed-off-by: Dale Farnsworth Signed-off-by: Jeff Garzik --- drivers/net/mv643xx_eth.c | 2 +- drivers/net/mv643xx_eth.h | 4 +++- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index 456d1e1c98..34288fe038 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -534,7 +534,7 @@ static irqreturn_t mv643xx_eth_int_handler(int irq, void *dev_id) } /* PHY status changed */ - if (eth_int_cause_ext & ETH_INT_CAUSE_PHY) { + if (eth_int_cause_ext & (ETH_INT_CAUSE_PHY | ETH_INT_CAUSE_STATE)) { struct ethtool_cmd cmd; if (mii_link_ok(&mp->mii)) { diff --git a/drivers/net/mv643xx_eth.h b/drivers/net/mv643xx_eth.h index 82f8c0cbfb..565b96696a 100644 --- a/drivers/net/mv643xx_eth.h +++ b/drivers/net/mv643xx_eth.h @@ -64,7 +64,9 @@ #define ETH_INT_CAUSE_TX_ERROR (ETH_TX_QUEUES_ENABLED << 8) #define ETH_INT_CAUSE_TX (ETH_INT_CAUSE_TX_DONE | ETH_INT_CAUSE_TX_ERROR) #define ETH_INT_CAUSE_PHY 0x00010000 -#define ETH_INT_UNMASK_ALL_EXT (ETH_INT_CAUSE_TX | ETH_INT_CAUSE_PHY) +#define ETH_INT_CAUSE_STATE 0x00100000 +#define ETH_INT_UNMASK_ALL_EXT (ETH_INT_CAUSE_TX | ETH_INT_CAUSE_PHY | \ + ETH_INT_CAUSE_STATE) #define ETH_INT_MASK_ALL 0x00000000 #define ETH_INT_MASK_ALL_EXT 0x00000000 -- 2.39.5