From f66736532a6bc593a2d7cda68835a79c23836f1b Mon Sep 17 00:00:00 2001 From: Manuel Lauss Date: Wed, 21 Jul 2010 14:30:50 +0200 Subject: [PATCH] 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 Acked-by: Florian Fainelli Signed-off-by: Manuel Lauss To: Linux-MIPS Cc: netdev@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1481/ Acked-by: David S. Miller Signed-off-by: Ralf Baechle --- arch/mips/alchemy/common/platform.c | 15 ++++++++- .../mips/include/asm/mach-au1x00/au1xxx_eth.h | 1 + drivers/net/au1000_eth.c | 31 +++++-------------- 3 files changed, 22 insertions(+), 25 deletions(-) diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c index c233d64a0d60..1dc55ee2681b 100644 --- a/arch/mips/alchemy/common/platform.c +++ b/arch/mips/alchemy/common/platform.c @@ -12,6 +12,7 @@ */ #include +#include #include #include #include @@ -21,6 +22,8 @@ #include #include +#include + #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; diff --git a/arch/mips/include/asm/mach-au1x00/au1xxx_eth.h b/arch/mips/include/asm/mach-au1x00/au1xxx_eth.h index bae9b758fcde..49dc8d9db186 100644 --- a/arch/mips/include/asm/mach-au1x00/au1xxx_eth.h +++ b/arch/mips/include/asm/mach-au1x00/au1xxx_eth.h @@ -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, diff --git a/drivers/net/au1000_eth.c b/drivers/net/au1000_eth.c index ece6128bef14..17e7e27eb222 100644 --- a/drivers/net/au1000_eth.c +++ b/drivers/net/au1000_eth.c @@ -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; -- 2.20.1