[U-Boot] [PATCH 0/5] EXYNOS4: Enable I2C support

Piotr Wilczek p.wilczek at samsung.com
Wed Oct 10 16:13:48 CEST 2012


Dear Minkyu Kang,

The reason I didn't provide the last patch to use the hardware I2C is that
on Trats board a software I2C is used to communicate with Fuel Gage.
Unfortunately in u-boot soft_i2c and hardware I2C cannot be used at the same
time. The patchset was tested on Trats board and it worked correctly.

I could provide the last patch to use hardware I2C on Trats board for test
purposes and prove that it can be used on other boards.

Best regards,
Piotr Wilczek

> -----Original Message-----
> From: Minkyu Kang [mailto:promsoft at gmail.com]
> Sent: Wednesday, October 10, 2012 2:08 PM
> To: Piotr Wilczek
> Cc: u-boot at lists.denx.de; Kyungmin Park
> Subject: Re: [U-Boot] [PATCH 0/5] EXYNOS4: Enable I2C support
> 
> Dear Piotr Wilczek,
> 
> On 24 September 2012 15:49, Piotr Wilczek <p.wilczek at samsung.com>
> wrote:
> > This patchset enables hardware I2C support for Exynos 4.
> > The s3c24x0 I2C driver is modified to use for for both Exynos 4 and
> Exynos 5.
> > Pinmux setting is add for Exynos 4.
> > PMIC MAX8997 driver is modified to support multi channel hardware
> I2C.
> >
> > Piotr Wilczek (5):
> >   EXYNOS: CLK: Add i2c clock
> >   EXYNOS: Add Exynos4 I2C spacing
> >   EXYNOS: PINMUX: Add pinmux support for i2c
> >   DRIVERS: I2C: Modify I2C driver for EXYNOS4
> >   DRIVERS: MISC: PMIC: Modify pmic driver to support multibus I2C
> >
> >  arch/arm/cpu/armv7/exynos/clock.c      |    7 ++++
> >  arch/arm/cpu/armv7/exynos/pinmux.c     |   51
> ++++++++++++++++++++++++++++++++
> >  arch/arm/include/asm/arch-exynos/cpu.h |    2 +
> >  drivers/i2c/s3c24x0_i2c.c              |   19 +++++++----
> >  drivers/misc/pmic_max8997.c            |    7 +++-
> >  5 files changed, 77 insertions(+), 9 deletions(-)
> >
> 
> Codes look good to me.
> But I couldn't find usage of hardware at your patch.
> So I couldn't check what patch is working correctly.
> Please update the patch.
> 
> Thanks.
> Minkyu Kang.
> --
> from. prom.
> www.promsoft.net



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