Set the usbethaddr based on the OMAP DIE_ID registers which should be unique for each processor.
Then set this as the usb ethernet MAC address. Signed-off-by: Dan Murphy <dmur...@ti.com> --- v3 - new patch v4 - Updated per the comments - http://patchwork.ozlabs.org/patch/259754/ board/ti/omap5_uevm/evm.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/board/ti/omap5_uevm/evm.c b/board/ti/omap5_uevm/evm.c index 6219770..19d6e71 100644 --- a/board/ti/omap5_uevm/evm.c +++ b/board/ti/omap5_uevm/evm.c @@ -18,6 +18,10 @@ #include <asm/arch/clock.h> #include <asm/arch/ehci.h> #include <asm/ehci-omap.h> + +#define DIE_ID_REG_BASE (OMAP54XX_L4_CORE_BASE + 0x2000) +#define DIE_ID_REG_OFFSET 0x200 + #endif DECLARE_GLOBAL_DATA_PTR; @@ -122,9 +126,28 @@ int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor) { int ret; int auxclk; + int reg; + uint8_t device_mac[6]; enable_host_clocks(); + if (!getenv("usbethaddr")) { + reg = DIE_ID_REG_BASE + DIE_ID_REG_OFFSET; + + /* + * create a fake MAC address from the processor ID code. + * first byte is 0x02 to signify locally administered. + */ + device_mac[0] = 0x02; + device_mac[1] = readl(reg + 0x10) & 0xff; + device_mac[2] = readl(reg + 0xC) & 0xff; + device_mac[3] = readl(reg + 0x8) & 0xff; + device_mac[4] = readl(reg) & 0xff; + device_mac[5] = (readl(reg) >> 8) & 0xff; + + eth_setenv_enetaddr("usbethaddr", device_mac); + } + auxclk = readl((*prcm)->scrm_auxclk1); /* Request auxilary clock */ auxclk |= AUXCLK_ENABLE_MASK; -- 1.7.9.5 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
