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MIPS: au1000_eth: Get ethernet address from platform_data 

au1000_eth uses firmware calls to get a valid MAC address, and changes
it depending on platform device id.  This patch moves this logic out of
the driver into the platform device registration part, where boards with
supported chips can use whatever firmware interface they need; the default
implementation maintains compatibility with existing, YAMON-based firmware.

Tested-by: Wolfgang Grandegger <wg@denx.de>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Cc: netdev@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/1481/
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Manuel Lauss 2010-07-21 14:30:50 +02:00 committed by Ralf Baechle
parent 12bf3f24e0
commit f66736532a
3 changed files with 22 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
arch/mips/alchemy/common/platform.c
View File

@ -12,6 +12,7 @@
*/
#include <linux/dma-mapping.h>
#include <linux/etherdevice.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
#include <linux/init.h>
@ -21,6 +22,8 @@
#include <asm/mach-au1x00/au1100_mmc.h>
#include <asm/mach-au1x00/au1xxx_eth.h>
#include <prom.h>
#define PORT(_base, _irq) \
{ \
.mapbase = _base, \
@ -434,17 +437,27 @@ static int __init au1xxx_platform_init(void)
{
unsigned int uartclk = get_au1x00_uart_baud_base() * 16;
int err, i;
unsigned char ethaddr[6];
/* Fill up uartclk. */
for (i = 0; au1x00_uart_data[i].flags; i++)
au1x00_uart_data[i].uartclk = uartclk;
/* use firmware-provided mac addr if available and necessary */
i = prom_get_ethernet_addr(ethaddr);
if (!i && !is_valid_ether_addr(au1xxx_eth0_platform_data.mac))
memcpy(au1xxx_eth0_platform_data.mac, ethaddr, 6);
err = platform_add_devices(au1xxx_platform_devices,
ARRAY_SIZE(au1xxx_platform_devices));
#ifndef CONFIG_SOC_AU1100
ethaddr[5] += 1; /* next addr for 2nd MAC */
if (!i && !is_valid_ether_addr(au1xxx_eth1_platform_data.mac))
memcpy(au1xxx_eth1_platform_data.mac, ethaddr, 6);
/* Register second MAC if enabled in pinfunc */
if (!err && !(au_readl(SYS_PINFUNC) & (u32)SYS_PF_NI2))
platform_device_register(&au1xxx_eth1_device);
err = platform_device_register(&au1xxx_eth1_device);
#endif
return err;

1
arch/mips/include/asm/mach-au1x00/au1xxx_eth.h
View File

@ -9,6 +9,7 @@ struct au1000_eth_platform_data {
int phy_addr;
int phy_busid;
int phy_irq;
char mac[6];
};
void __init au1xxx_override_eth_cfg(unsigned port,

31
drivers/net/au1000_eth.c
View File

@ -104,14 +104,6 @@ MODULE_VERSION(DRV_VERSION);
* complete immediately.
*/
/* These addresses are only used if yamon doesn't tell us what
* the mac address is, and the mac address is not passed on the
* command line.
*/
static unsigned char au1000_mac_addr[6] __devinitdata = {
0x00, 0x50, 0xc2, 0x0c, 0x30, 0x00
};
struct au1000_private *au_macs[NUM_ETH_INTERFACES];
/*
@ -1002,7 +994,6 @@ static int __devinit au1000_probe(struct platform_device *pdev)
db_dest_t *pDB, *pDBfree;
int irq, i, err = 0;
struct resource *base, *macen;
char ethaddr[6];
base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!base) {
@ -1079,24 +1070,13 @@ static int __devinit au1000_probe(struct platform_device *pdev)
}
aup->mac_id = pdev->id;
if (pdev->id == 0) {
if (prom_get_ethernet_addr(ethaddr) == 0)
memcpy(au1000_mac_addr, ethaddr, sizeof(au1000_mac_addr));
else {
netdev_info(dev, "No MAC address found\n");
/* Use the hard coded MAC addresses */
}
if (pdev->id == 0)
au1000_setup_hw_rings(aup, MAC0_RX_DMA_ADDR, MAC0_TX_DMA_ADDR);
} else if (pdev->id == 1)
else if (pdev->id == 1)
au1000_setup_hw_rings(aup, MAC1_RX_DMA_ADDR, MAC1_TX_DMA_ADDR);
/*
* Assign to the Ethernet ports two consecutive MAC addresses
* to match those that are printed on their stickers
*/
memcpy(dev->dev_addr, au1000_mac_addr, sizeof(au1000_mac_addr));
dev->dev_addr[5] += pdev->id;
/* set a random MAC now in case platform_data doesn't provide one */
random_ether_addr(dev->dev_addr);
*aup->enable = 0;
aup->mac_enabled = 0;
@ -1106,6 +1086,9 @@ static int __devinit au1000_probe(struct platform_device *pdev)
dev_info(&pdev->dev, "no platform_data passed, PHY search on MAC0\n");
aup->phy1_search_mac0 = 1;
} else {
if (is_valid_ether_addr(pd->mac))
memcpy(dev->dev_addr, pd->mac, 6);
aup->phy_static_config = pd->phy_static_config;
aup->phy_search_highest_addr = pd->phy_search_highest_addr;
aup->phy1_search_mac0 = pd->phy1_search_mac0;