diff options
| author | Dan Murphy | 2013-08-01 14:06:00 -0500 |
|---|---|---|
| committer | Marek Vasut | 2013-08-26 21:56:34 +0200 |
| commit | 04025b42dc32b0f6437c24743b1c88b8ec43995a (patch) | |
| tree | e55334416fa706e19508426c5c1776f0154ba310 /board | |
| parent | 5e5cfaf9977e5ca563889e0689ff52ae07883745 (diff) | |
ARM: OMAP5-uevm: Add USB MAC ethernet address
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>
Diffstat (limited to 'board')
| -rw-r--r-- | board/ti/omap5_uevm/evm.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/board/ti/omap5_uevm/evm.c b/board/ti/omap5_uevm/evm.c index d0c5241cb1a..97994b08194 100644 --- a/board/ti/omap5_uevm/evm.c +++ b/board/ti/omap5_uevm/evm.c @@ -19,6 +19,10 @@ #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; @@ -144,9 +148,28 @@ 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; |