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| author | Dan Murphy <dmurphy@ti.com> | 2013-10-10 08:54:23 -0500 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-10-14 16:06:53 -0400 |
| commit | e84b8f6ce0e7daf4e9781172c4ffd74d7d525dbb (patch) | |
| tree | 65f772f97d5687cd8793b66d10a3bbad4564f3f8 | |
| parent | b0c3b1195a2e85e32d7d1610d3683b48750e7394 (diff) | |
| download | u-boot-imx-e84b8f6ce0e7daf4e9781172c4ffd74d7d525dbb.zip u-boot-imx-e84b8f6ce0e7daf4e9781172c4ffd74d7d525dbb.tar.gz u-boot-imx-e84b8f6ce0e7daf4e9781172c4ffd74d7d525dbb.tar.bz2 | |
ARM: omap4-panda: Add MAC address creation for panda
Add a MAC address create based on the OMAP die ID registers.
Then poplulate the ethaddr enviroment variable so that the device
tree alias can be updated prior to boot.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
| -rw-r--r-- | arch/arm/include/asm/arch-omap4/omap.h | 4 | ||||
| -rw-r--r-- | board/ti/panda/panda.c | 16 |
2 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-omap4/omap.h b/arch/arm/include/asm/arch-omap4/omap.h index 9129c0d..e35f51c 100644 --- a/arch/arm/include/asm/arch-omap4/omap.h +++ b/arch/arm/include/asm/arch-omap4/omap.h @@ -33,6 +33,10 @@ /* CONTROL_ID_CODE */ #define CONTROL_ID_CODE 0x4A002204 +#define STD_FUSE_DIE_ID_0 0x4A002200 +#define STD_FUSE_DIE_ID_1 0x4A002208 +#define STD_FUSE_DIE_ID_2 0x4A00220c +#define STD_FUSE_DIE_ID_3 0x4A002210 #define OMAP4_CONTROL_ID_CODE_ES1_0 0x0B85202F #define OMAP4_CONTROL_ID_CODE_ES2_0 0x1B85202F diff --git a/board/ti/panda/panda.c b/board/ti/panda/panda.c index e838ffd..bc3c292 100644 --- a/board/ti/panda/panda.c +++ b/board/ti/panda/panda.c @@ -133,6 +133,7 @@ int misc_init_r(void) { int phy_type; u32 auxclk, altclksrc; + uint8_t device_mac[6]; /* EHCI is not supported on ES1.0 */ if (omap_revision() == OMAP4430_ES1_0) @@ -186,6 +187,21 @@ int misc_init_r(void) writel(altclksrc, &scrm->altclksrc); + if (!getenv("usbethaddr")) { + /* + * 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(STD_FUSE_DIE_ID_3) & 0xff; + device_mac[2] = readl(STD_FUSE_DIE_ID_2) & 0xff; + device_mac[3] = readl(STD_FUSE_DIE_ID_1) & 0xff; + device_mac[4] = readl(STD_FUSE_DIE_ID_0) & 0xff; + device_mac[5] = (readl(STD_FUSE_DIE_ID_0) >> 8) & 0xff; + + eth_setenv_enetaddr("usbethaddr", device_mac); + } + return 0; } |