From: loic.minier@linaro.org (Loïc Minier)
To: linux-arm-kernel@lists.infradead.org
Subject: [patch 1/9] efikamx: read board id
Date: Wed, 20 Oct 2010 21:26:41 +0200 [thread overview]
Message-ID: <20101020192641.GA6466@bee.dooz.org> (raw)
In-Reply-To: <AANLkTimoLQKUjrTHv9xwd8TkGQ3inT_+4-hjfo+Tudj=@mail.gmail.com>
On Wed, Oct 20, 2010, Matt Sealey wrote:
> Uwe, there is no way to tell if the pads have settled, it is entirely
> a hardware problem, just like when GPIOs are at random input states if
> they are not connected to anything: in this case, first of all the
> IOMUX pull downs and then the GPIO change to input takes longer than
> you can safely do it and then immediately read the pins or board
> version 1.1 and below will not ID correctly.
Is there a strong need to distinguish between all the PCB ids? You
could use the TO2 versus TO3 information to decide between 1.1 and 1.3
PCBs and stop supporting the other (rare) boards?
--
Lo?c Minier
next prev parent reply other threads:[~2010-10-20 19:26 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-19 20:42 [patch 0/9] efikamx support improvements Arnaud Patard (Rtp)
2010-10-19 20:42 ` [patch 1/9] efikamx: read board id Arnaud Patard (Rtp)
2010-10-19 21:15 ` Sascha Hauer
2010-10-19 21:30 ` Matt Sealey
2010-10-20 7:54 ` Amit Kucheria
2010-10-20 8:12 ` Arnaud Patard (Rtp)
2010-10-20 9:03 ` Amit Kucheria
2010-10-20 8:24 ` Sascha Hauer
2010-10-20 8:35 ` Arnaud Patard (Rtp)
2010-10-20 8:59 ` Matt Sealey
2010-10-20 9:16 ` Uwe Kleine-König
2010-10-20 17:26 ` Matt Sealey
2010-10-20 19:26 ` Loïc Minier [this message]
2010-10-20 19:53 ` Arnaud Patard (Rtp)
2010-10-21 1:32 ` Matt Sealey
2010-10-20 20:53 ` Matt Sealey
2010-10-19 20:42 ` [patch 2/9] efikamx: add mmc support Arnaud Patard (Rtp)
2010-10-19 20:42 ` [patch 3/9] imx51: enhance/fix iomux configuration Arnaud Patard (Rtp)
2010-10-19 21:04 ` Sascha Hauer
2010-10-20 8:14 ` Arnaud Patard (Rtp)
2010-10-20 9:14 ` Eric Bénard
2010-10-20 9:26 ` Arnaud Patard (Rtp)
2010-10-20 9:18 ` Eric Bénard
2010-10-20 9:29 ` Arnaud Patard (Rtp)
2010-10-20 9:41 ` Amit Kucheria
2010-10-20 10:00 ` Uwe Kleine-König
2010-10-20 10:12 ` Arnaud Patard (Rtp)
2010-10-20 12:10 ` Uwe Kleine-König
2010-10-19 20:42 ` [patch 4/9] imx51: add gpio mode for csi1 {h,v}sync Arnaud Patard (Rtp)
2010-10-19 20:42 ` [patch 5/9] efikamx: add leds support Arnaud Patard (Rtp)
2010-10-20 11:15 ` Amit Kucheria
2010-10-19 20:42 ` [patch 6/9] efikamx: add support for power key Arnaud Patard (Rtp)
2010-10-19 20:43 ` [patch 7/9] imx51: fix gpio_4_24 and gpio_4_25 pad configuration Arnaud Patard (Rtp)
2010-10-19 20:43 ` [patch 8/9] efikamx: add spi nor support Arnaud Patard (Rtp)
2010-10-20 11:26 ` Amit Kucheria
2010-10-20 12:01 ` Arnaud Patard (Rtp)
2010-10-20 12:32 ` Amit Kucheria
2010-10-20 17:36 ` Matt Sealey
2010-10-20 17:55 ` Arnaud Patard (Rtp)
2010-10-20 20:51 ` Matt Sealey
2010-10-19 20:43 ` [patch 9/9] efikamx: add reset Arnaud Patard (Rtp)
2010-10-19 23:51 ` Fabio Estevam
2010-10-20 8:13 ` Arnaud Patard (Rtp)
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