From: Andy Green <andy@warmcat.com>
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 <andy.green@linaro.org>
Subject: [RFC PATCH 2/5] OMAP2+: add cpu id register to MAC address helper
Date: Sat, 12 Mar 2011 22:50:47 +0000 [thread overview]
Message-ID: <20110312225047.27728.1835.stgit@otae.warmcat.com> (raw)
In-Reply-To: <20110312224440.27728.60593.stgit@otae.warmcat.com>
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 <andy.green@linaro.org>
---
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
next prev parent reply other threads:[~2011-03-12 22:50 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-12 22:50 [RFC PATCH 0/5] OMAP2+ / Panda implementation for async platform_data Andy Green
2011-03-12 22:50 ` [RFC PATCH 1/5] OMAP2+: Panda introduce async platform data definition Andy Green
2011-03-13 1:05 ` Greg KH
2011-03-12 22:50 ` Andy Green [this message]
2011-03-18 8:34 ` [RFC PATCH 2/5] OMAP2+: add cpu id register to MAC address helper Arnd Bergmann
2011-03-18 8:49 ` Andy Green
2011-03-18 14:37 ` Premi, Sanjeev
2011-03-18 14:47 ` Andy Green
2011-03-18 8:52 ` Roger Quadros
2011-03-18 9:13 ` Andy Green
2011-03-12 22:50 ` [RFC PATCH 3/5] OMAP2+:Common CPU DIE ID reading code reads wrong registers for OMAP4430 Andy Green
2011-03-14 18:12 ` Tony Lindgren
2011-03-12 22:51 ` [RFC PATCH 4/5] OMAP2+: Set onboard Ethernet MAC address using unique CPU ID data Andy Green
2011-03-12 22:51 ` [RFC PATCH 5/5] USBNET: SMSC95XX: if mac set in platform data no need for random one Andy Green
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