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| author | Ken Kawasaki <ken_kawasaki@spring.nifty.jp> | 2010-11-06 05:11:24 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-11-12 14:00:04 -0800 |
| commit | 19c0ef6b36a67fc579c77bb9b4da00e084fdb667 (patch) | |
| tree | 50161b114bddadcdc08db2eca7dabd70f3f9cd26 /drivers/net/pcmcia | |
| parent | 2de795707294972f6c34bae9de713e502c431296 (diff) | |
| download | linux-stable-19c0ef6b36a67fc579c77bb9b4da00e084fdb667.tar.gz linux-stable-19c0ef6b36a67fc579c77bb9b4da00e084fdb667.tar.bz2 linux-stable-19c0ef6b36a67fc579c77bb9b4da00e084fdb667.zip | |
axnet_cs: fix resume problem for some Ax88790 chip
axnet_cs:
Some Ax88790 chip need to reinitialize the CISREG_CCSR register
after resume.
Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/pcmcia')
| -rw-r--r-- | drivers/net/pcmcia/axnet_cs.c | 30 |
1 files changed, 20 insertions, 10 deletions
diff --git a/drivers/net/pcmcia/axnet_cs.c b/drivers/net/pcmcia/axnet_cs.c index d2e166e29dda..8a4d19e5de06 100644 --- a/drivers/net/pcmcia/axnet_cs.c +++ b/drivers/net/pcmcia/axnet_cs.c @@ -111,13 +111,14 @@ static irqreturn_t ax_interrupt(int irq, void *dev_id); typedef struct axnet_dev_t { struct pcmcia_device *p_dev; - caddr_t base; - struct timer_list watchdog; - int stale, fast_poll; - u_short link_status; - u_char duplex_flag; - int phy_id; - int flags; + caddr_t base; + struct timer_list watchdog; + int stale, fast_poll; + u_short link_status; + u_char duplex_flag; + int phy_id; + int flags; + int active_low; } axnet_dev_t; static inline axnet_dev_t *PRIV(struct net_device *dev) @@ -322,6 +323,8 @@ static int axnet_config(struct pcmcia_device *link) if (info->flags & IS_AX88790) outb(0x10, dev->base_addr + AXNET_GPIO); /* select Internal PHY */ + info->active_low = 0; + for (i = 0; i < 32; i++) { j = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 1); j2 = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 2); @@ -329,15 +332,18 @@ static int axnet_config(struct pcmcia_device *link) if ((j != 0) && (j != 0xffff)) break; } - /* Maybe PHY is in power down mode. (PPD_SET = 1) - Bit 2 of CCSR is active low. */ if (i == 32) { + /* Maybe PHY is in power down mode. (PPD_SET = 1) + Bit 2 of CCSR is active low. */ pcmcia_write_config_byte(link, CISREG_CCSR, 0x04); for (i = 0; i < 32; i++) { j = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 1); j2 = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 2); if (j == j2) continue; - if ((j != 0) && (j != 0xffff)) break; + if ((j != 0) && (j != 0xffff)) { + info->active_low = 1; + break; + } } } @@ -383,8 +389,12 @@ static int axnet_suspend(struct pcmcia_device *link) static int axnet_resume(struct pcmcia_device *link) { struct net_device *dev = link->priv; + axnet_dev_t *info = PRIV(dev); if (link->open) { + if (info->active_low == 1) + pcmcia_write_config_byte(link, CISREG_CCSR, 0x04); + axnet_reset_8390(dev); AX88190_init(dev, 1); netif_device_attach(dev); |