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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>
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2de7957072
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19c0ef6b36
@ -111,13 +111,14 @@ static irqreturn_t ax_interrupt(int irq, void *dev_id);
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typedef struct axnet_dev_t {
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struct pcmcia_device *p_dev;
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caddr_t base;
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struct timer_list watchdog;
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int stale, fast_poll;
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u_short link_status;
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u_char duplex_flag;
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int phy_id;
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int flags;
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caddr_t base;
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struct timer_list watchdog;
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int stale, fast_poll;
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u_short link_status;
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u_char duplex_flag;
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int phy_id;
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int flags;
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int active_low;
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} axnet_dev_t;
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static inline axnet_dev_t *PRIV(struct net_device *dev)
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@ -322,6 +323,8 @@ static int axnet_config(struct pcmcia_device *link)
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if (info->flags & IS_AX88790)
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outb(0x10, dev->base_addr + AXNET_GPIO); /* select Internal PHY */
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info->active_low = 0;
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for (i = 0; i < 32; i++) {
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j = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 1);
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j2 = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 2);
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@ -329,15 +332,18 @@ static int axnet_config(struct pcmcia_device *link)
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if ((j != 0) && (j != 0xffff)) break;
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}
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/* Maybe PHY is in power down mode. (PPD_SET = 1)
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Bit 2 of CCSR is active low. */
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if (i == 32) {
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/* Maybe PHY is in power down mode. (PPD_SET = 1)
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Bit 2 of CCSR is active low. */
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pcmcia_write_config_byte(link, CISREG_CCSR, 0x04);
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for (i = 0; i < 32; i++) {
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j = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 1);
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j2 = mdio_read(dev->base_addr + AXNET_MII_EEP, i, 2);
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if (j == j2) continue;
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if ((j != 0) && (j != 0xffff)) break;
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if ((j != 0) && (j != 0xffff)) {
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info->active_low = 1;
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break;
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}
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}
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}
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@ -383,8 +389,12 @@ static int axnet_suspend(struct pcmcia_device *link)
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static int axnet_resume(struct pcmcia_device *link)
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{
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struct net_device *dev = link->priv;
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axnet_dev_t *info = PRIV(dev);
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if (link->open) {
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if (info->active_low == 1)
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pcmcia_write_config_byte(link, CISREG_CCSR, 0x04);
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axnet_reset_8390(dev);
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AX88190_init(dev, 1);
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netif_device_attach(dev);
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