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 dmurphy@ti.com --- v3 - new patch
board/ti/omap5_uevm/evm.c | 26 ++++++++++++++++++++++++++ include/configs/omap5_uevm.h | 2 ++ 2 files changed, 28 insertions(+)
diff --git a/board/ti/omap5_uevm/evm.c b/board/ti/omap5_uevm/evm.c index bf14cd2..9add0fd 100644 --- a/board/ti/omap5_uevm/evm.c +++ b/board/ti/omap5_uevm/evm.c @@ -33,6 +33,11 @@ #include <usb.h> #include <asm/arch/ehci.h> #include <asm/ehci-omap.h> + +#define MAX_DEVICE_MAC 20 +#define DIE_ID_REG_BASE (OMAP54XX_L4_CORE_BASE + 0x2000) +#define DIE_ID_REG_OFFSET 0x200 + #endif
DECLARE_GLOBAL_DATA_PTR; @@ -121,6 +126,27 @@ int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor) { int ret; int auxclk; + int val[4] = { 0 }; + int reg; + char device_mac[MAX_DEVICE_MAC]; + + reg = DIE_ID_REG_BASE + DIE_ID_REG_OFFSET; + + val[0] = readl(reg); + val[1] = readl(reg + 0x8); + val[2] = readl(reg + 0xC); + val[3] = readl(reg + 0x10); + + /* create a fake MAC address from the processor ID code. + * first byte is 0x02 to signify locally administered. + */ + snprintf(device_mac, MAX_DEVICE_MAC, "%02X:%02X:%02X:%02X:%02X:%02X", + 0x02, val[3] & 0xff, val[2] & 0xff, val[1] & 0xff, + val[0] & 0xff, (val[0] >> 8 & 0xff)); + +#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG + setenv("usbethaddr", device_mac); +#endif
auxclk = readl((*prcm)->scrm_auxclk1); /* Request auxilary clock */ diff --git a/include/configs/omap5_uevm.h b/include/configs/omap5_uevm.h index 0740a32..53b86ec 100644 --- a/include/configs/omap5_uevm.h +++ b/include/configs/omap5_uevm.h @@ -79,5 +79,7 @@
#define CONSOLEDEV "ttyO2"
+#define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG + #define CONFIG_OMAP_PLATFORM_RESET_TIME_MAX_USEC 16296 #endif /* __CONFIG_OMAP5_EVM_H */