diff options
| author | Shawn Guo <shawn.guo@freescale.com> | 2011-01-14 15:25:52 +0800 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2011-01-21 11:36:49 +0100 |
| commit | a320b2793dae44953dc58e9f681d8f161eb5b3ab (patch) | |
| tree | b495c50e806b6ff1c8d30625f32b0660f71bb5fa /arch/arm/mach-mxs | |
| parent | 67f43086a24b77a82724855141a5b7a4d72549bd (diff) | |
ARM: mxs/mx28evk: read fec mac address from ocotp
Read fec mac address from ocotp and save it into fec_platform_data
mac field for fec driver to use.
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-mxs')
| -rw-r--r-- | arch/arm/mach-mxs/mach-mx28evk.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/arch/arm/mach-mxs/mach-mx28evk.c b/arch/arm/mach-mxs/mach-mx28evk.c index 8e2c5975001e..e8db99fabc48 100644 --- a/arch/arm/mach-mxs/mach-mx28evk.c +++ b/arch/arm/mach-mxs/mach-mx28evk.c @@ -119,7 +119,7 @@ static void __init mx28evk_fec_reset(void) gpio_set_value(MX28EVK_FEC_PHY_RESET, 1); } -static struct fec_platform_data mx28_fec_pdata[] = { +static struct fec_platform_data mx28_fec_pdata[] __initdata = { { /* fec0 */ .phy = PHY_INTERFACE_MODE_RMII, @@ -129,12 +129,45 @@ static struct fec_platform_data mx28_fec_pdata[] = { }, }; +static int __init mx28evk_fec_get_mac(void) +{ + int i; + u32 val; + const u32 *ocotp = mxs_get_ocotp(); + + if (!ocotp) + goto error; + + /* + * OCOTP only stores the last 4 octets for each mac address, + * so hard-code Freescale OUI (00:04:9f) here. + */ + for (i = 0; i < 2; i++) { + val = ocotp[i * 4]; + mx28_fec_pdata[i].mac[0] = 0x00; + mx28_fec_pdata[i].mac[1] = 0x04; + mx28_fec_pdata[i].mac[2] = 0x9f; + mx28_fec_pdata[i].mac[3] = (val >> 16) & 0xff; + mx28_fec_pdata[i].mac[4] = (val >> 8) & 0xff; + mx28_fec_pdata[i].mac[5] = (val >> 0) & 0xff; + } + + return 0; + +error: + pr_err("%s: timeout when reading fec mac from OCOTP\n", __func__); + return -ETIMEDOUT; +} + static void __init mx28evk_init(void) { mxs_iomux_setup_multiple_pads(mx28evk_pads, ARRAY_SIZE(mx28evk_pads)); mx28_add_duart(); + if (mx28evk_fec_get_mac()) + pr_warn("%s: failed on fec mac setup\n", __func__); + mx28evk_fec_reset(); mx28_add_fec(0, &mx28_fec_pdata[0]); mx28_add_fec(1, &mx28_fec_pdata[1]); |