From: martinwguy@gmail.com (Martin Guy)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/3] ep93xx: added chip revision reading function
Date: Sat, 20 Mar 2010 18:40:48 +0000 [thread overview]
Message-ID: <56d259a01003201140o8852165w7d1b3384927e70f7@mail.gmail.com> (raw)
In-Reply-To: <20100320182500.GF30801@buzzloop.caiaq.de>
On 3/20/10, Daniel Mack <daniel@caiaq.de> wrote:
> On Sat, Mar 20, 2010 at 06:07:50PM +0000, Martin Guy wrote:
> > The chip revision is normally placed in the global unsigned int
> > "system_rev", which is also reported by /proc/cpuinfo.
>
> No, that's the hardware revision number, which is different from the
> chip revision number.
The board revision? Right, thanks. I don't see a place to report this
in cpuinfo, since it is the SoC revision, which is neither the ARM CPU
it contains nor the board that conatins the SoC.
> If the ep93xx provides a unique serial number, then this could be an
> idea. I would still only set it in case it has not been given by the
> bootloader though.
It does, world-unique, burned into the chip. Thanks again.
M
next prev parent reply other threads:[~2010-03-20 18:40 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-18 16:59 [PATCH v2 0/3] spi: driver for Cirrus EP93xx SPI controller Mika Westerberg
2010-03-18 17:00 ` [PATCH v2 1/3] spi: implemented " Mika Westerberg
2010-03-18 17:00 ` [PATCH v2 2/3] ep93xx: added chip revision reading function Mika Westerberg
2010-03-18 17:00 ` [PATCH v2 3/3] ep93xx: SPI driver platform support code Mika Westerberg
2010-03-18 17:27 ` [spi-devel-general] [PATCH v2 2/3] ep93xx: added chip revision reading function H Hartley Sweeten
2010-03-25 9:06 ` Mika Westerberg
2010-03-25 17:20 ` H Hartley Sweeten
2010-03-26 15:40 ` Martin Guy
2010-03-20 18:07 ` Martin Guy
2010-03-20 18:25 ` Daniel Mack
2010-03-20 18:40 ` Martin Guy [this message]
2010-03-20 19:31 ` H Hartley Sweeten
2010-03-20 19:48 ` Martin Guy
2010-03-20 18:31 ` Mika Westerberg
2010-03-20 19:42 ` H Hartley Sweeten
2010-03-21 18:45 ` Mika Westerberg
2010-03-25 13:49 ` [PATCH v2 1/3] spi: implemented driver for Cirrus EP93xx SPI controller Martin Guy
2010-03-25 18:43 ` Mika Westerberg
2010-04-01 0:15 ` Martin Guy
2010-04-01 3:00 ` Ryan Mallon
2010-04-01 6:26 ` Mika Westerberg
2010-04-06 5:44 ` Mika Westerberg
2010-04-06 12:50 ` Martin Guy
2010-04-06 18:18 ` Mika Westerberg
2010-04-06 21:28 ` Martin Guy
2010-04-09 17:56 ` Martin Guy
2010-04-09 18:08 ` Martin Guy
2010-04-10 15:54 ` Mika Westerberg
2010-04-11 14:24 ` Martin Guy
2010-04-12 10:03 ` Martin Guy
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