From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Green Subject: [RFC PATCH 2/5] OMAP2+: add cpu id register to MAC address helper Date: Sat, 12 Mar 2011 22:50:47 +0000 Message-ID: <20110312225047.27728.1835.stgit@otae.warmcat.com> References: <20110312224440.27728.60593.stgit@otae.warmcat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: Received: from mail-wy0-f174.google.com ([74.125.82.174]:40480 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756162Ab1CLWuu (ORCPT ); Sat, 12 Mar 2011 17:50:50 -0500 In-Reply-To: <20110312224440.27728.60593.stgit@otae.warmcat.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: patches@linaro.org, Andy Green Introduce a generic helper function that can set a MAC address using data from the OMAP unqiue CPU ID register. Signed-off-by: Andy Green --- arch/arm/mach-omap2/id.c | 13 +++++++++++++ arch/arm/mach-omap2/include/mach/id.h | 1 + 2 files changed, 14 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index 5f9086c..fc69ec5 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -506,3 +506,16 @@ void __init omap2_set_globals_tap(struct omap_globals *omap2_globals) else tap_prod_id = 0x0208; } + + +void omap2_die_id_to_mac(u8 *mac, int length) +{ + struct omap_die_id odi; + + omap_get_die_id(&odi); + memcpy(mac, &odi.id_0, length); + + /* mark it as not multicast and outside official 80211 MAC namespace */ + + mac[0] = (mac[0] & ~1) | 2; +} diff --git a/arch/arm/mach-omap2/include/mach/id.h b/arch/arm/mach-omap2/include/mach/id.h index 02ed3aa..72e10eb 100644 --- a/arch/arm/mach-omap2/include/mach/id.h +++ b/arch/arm/mach-omap2/include/mach/id.h @@ -18,5 +18,6 @@ struct omap_die_id { }; void omap_get_die_id(struct omap_die_id *odi); +void omap2_die_id_to_mac(u8 *mac, int length); #endif From mboxrd@z Thu Jan 1 00:00:00 1970 From: andy@warmcat.com (Andy Green) Date: Sat, 12 Mar 2011 22:50:47 +0000 Subject: [RFC PATCH 2/5] OMAP2+: add cpu id register to MAC address helper In-Reply-To: <20110312224440.27728.60593.stgit@otae.warmcat.com> References: <20110312224440.27728.60593.stgit@otae.warmcat.com> Message-ID: <20110312225047.27728.1835.stgit@otae.warmcat.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Introduce a generic helper function that can set a MAC address using data from the OMAP unqiue CPU ID register. Signed-off-by: Andy Green --- arch/arm/mach-omap2/id.c | 13 +++++++++++++ arch/arm/mach-omap2/include/mach/id.h | 1 + 2 files changed, 14 insertions(+), 0 deletions(-) diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index 5f9086c..fc69ec5 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -506,3 +506,16 @@ void __init omap2_set_globals_tap(struct omap_globals *omap2_globals) else tap_prod_id = 0x0208; } + + +void omap2_die_id_to_mac(u8 *mac, int length) +{ + struct omap_die_id odi; + + omap_get_die_id(&odi); + memcpy(mac, &odi.id_0, length); + + /* mark it as not multicast and outside official 80211 MAC namespace */ + + mac[0] = (mac[0] & ~1) | 2; +} diff --git a/arch/arm/mach-omap2/include/mach/id.h b/arch/arm/mach-omap2/include/mach/id.h index 02ed3aa..72e10eb 100644 --- a/arch/arm/mach-omap2/include/mach/id.h +++ b/arch/arm/mach-omap2/include/mach/id.h @@ -18,5 +18,6 @@ struct omap_die_id { }; void omap_get_die_id(struct omap_die_id *odi); +void omap2_die_id_to_mac(u8 *mac, int length); #endif