diff options
Diffstat (limited to 'arch/arm/mach-mxs')
| -rw-r--r-- | arch/arm/mach-mxs/mach-mxs.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c index 8cac94b33020..167f64911e72 100644 --- a/arch/arm/mach-mxs/mach-mxs.c +++ b/arch/arm/mach-mxs/mach-mxs.c @@ -71,6 +71,68 @@ static struct sys_timer imx28_timer = { .init = imx28_timer_init, }; +enum mac_oui { + OUI_FSL, + OUI_DENX, +}; + +static void __init update_fec_mac_prop(enum mac_oui oui) +{ + struct device_node *np, *from = NULL; + struct property *oldmac, *newmac; + const u32 *ocotp = mxs_get_ocotp(); + u8 *macaddr; + u32 val; + int i; + + for (i = 0; i < 2; i++) { + np = of_find_compatible_node(from, NULL, "fsl,imx28-fec"); + if (!np) + return; + from = np; + + newmac = kzalloc(sizeof(*newmac) + 6, GFP_KERNEL); + if (!newmac) + return; + newmac->value = newmac + 1; + newmac->length = 6; + + newmac->name = kstrdup("local-mac-address", GFP_KERNEL); + if (!newmac->name) { + kfree(newmac); + return; + } + + /* + * OCOTP only stores the last 4 octets for each mac address, + * so hard-code OUI here. + */ + macaddr = newmac->value; + switch (oui) { + case OUI_FSL: + macaddr[0] = 0x00; + macaddr[1] = 0x04; + macaddr[2] = 0x9f; + break; + case OUI_DENX: + macaddr[0] = 0xc0; + macaddr[1] = 0xe5; + macaddr[2] = 0x4e; + break; + } + val = ocotp[i]; + macaddr[3] = (val >> 16) & 0xff; + macaddr[4] = (val >> 8) & 0xff; + macaddr[5] = (val >> 0) & 0xff; + + oldmac = of_find_property(np, newmac->name, NULL); + if (oldmac) + prom_update_property(np, newmac, oldmac); + else + prom_add_property(np, newmac); + } +} + static void __init imx28_evk_init(void) { struct clk *clk; @@ -79,6 +141,8 @@ static void __init imx28_evk_init(void) clk = clk_get_sys("enet_out", NULL); if (!IS_ERR(clk)) clk_prepare_enable(clk); + + update_fec_mac_prop(OUI_FSL); } static void __init mxs_machine_init(void) |