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IXP4xx: add Ethernet and NPE support for IXP43x CPU.

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Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
This commit is contained in:
Krzysztof Hałasa
2009-03-13 19:09:00 +01:00
parent 0a07232ff6
commit 5ca328d24d
2 changed files with 16 additions and 10 deletions
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20
drivers/net/arm/ixp4xx_eth.c
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@ -335,11 +335,20 @@ static int ixp4xx_mdio_register(void)
if (!(mdio_bus = mdiobus_alloc()))
return -ENOMEM;
/* All MII PHY accesses use NPE-B Ethernet registers */
spin_lock_init(&mdio_lock);
mdio_regs = (struct eth_regs __iomem *)IXP4XX_EthB_BASE_VIRT;
__raw_writel(DEFAULT_CORE_CNTRL, &mdio_regs->core_control);
if (cpu_is_ixp43x()) {
/* IXP43x lacks NPE-B and uses NPE-C for MII PHY access */
if (!(ixp4xx_read_feature_bits() & IXP4XX_FEATURE_NPEC_ETH))
return -ENOSYS;
mdio_regs = (struct eth_regs __iomem *)IXP4XX_EthC_BASE_VIRT;
} else {
/* All MII PHY accesses use NPE-B Ethernet registers */
if (!(ixp4xx_read_feature_bits() & IXP4XX_FEATURE_NPEB_ETH0))
return -ENOSYS;
mdio_regs = (struct eth_regs __iomem *)IXP4XX_EthB_BASE_VIRT;
}
__raw_writel(DEFAULT_CORE_CNTRL, &mdio_regs->core_control);
spin_lock_init(&mdio_lock);
mdio_bus->name = "IXP4xx MII Bus";
mdio_bus->read = &ixp4xx_mdio_read;
mdio_bus->write = &ixp4xx_mdio_write;
@ -1250,9 +1259,6 @@ static struct platform_driver ixp4xx_eth_driver = {
static int __init eth_init_module(void)
{
int err;
if (!(ixp4xx_read_feature_bits() & IXP4XX_FEATURE_NPEB_ETH0))
return -ENOSYS;
if ((err = ixp4xx_mdio_register()))
return err;
return platform_driver_register(&ixp4xx_eth_driver);