From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shawn Guo Subject: [PATCH v5 09/10] ARM: mxs/mx28evk: read fec mac address from ocotp Date: Fri, 14 Jan 2011 15:25:52 +0800 Message-ID: <1294989952-20813-1-git-send-email-shawn.guo@freescale.com> References: <1294297998-26930-1-git-send-email-shawn.guo@freescale.com> Mime-Version: 1.0 Content-Type: text/plain Cc: Shawn Guo To: , , , , , , , , Return-path: Received: from tx2ehsobe001.messaging.microsoft.com ([65.55.88.11]:39393 "EHLO TX2EHSOBE002.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753188Ab1ANHXB (ORCPT ); Fri, 14 Jan 2011 02:23:01 -0500 In-Reply-To: <1294297998-26930-1-git-send-email-shawn.guo@freescale.com> Sender: netdev-owner@vger.kernel.org List-ID: 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 --- 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 8e2c597..e8db99f 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]); -- 1.7.1