From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heiko Schocher Date: Mon, 22 Oct 2012 19:07:25 +0200 Subject: [U-Boot] [PATCH v2 0/9] arm:exynos4: Enable Multi I2C In-Reply-To: <1350890483-26579-1-git-send-email-p.wilczek@samsung.com> References: <1350890483-26579-1-git-send-email-p.wilczek@samsung.com> Message-ID: <50857D4D.6080705@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hello Piotr Wilczek, On 22.10.2012 09:21, Piotr Wilczek wrote: > This patchset enables both software and hardware I2C support for Exynos 4. > New multi_i2c driver is added to support simultaneous use of hardware > and software I2C drivers. There was some I2C multibus support discussions, the latest was here: http://www.mail-archive.com/u-boot at lists.denx.de/msg75530.html I reworked this patches (rebased to current ML, worked in some comments from the ML) and added soft_i2c support as an example for it. Currently compile tested for arm and powerpc, you can find the tree here: http://git.denx.de/?p=u-boot/u-boot-i2c.git;a=shortlog;h=refs/heads/multibus_v2_20121023 I post this patches to the ML soon, and we should try to bring this base to mainline and you should rebase your work on it ... > The s3c24x0_i2c driver is modified to use for for both Exynos 4 and Exynos 5. > Both s3c24x0_i2c and soft_i2c drivers are modified so can be used separetly > (only hardware or only software) or can be used simultaneously. > Pinmux setting and clock is add for Exynos4 to support hardware I2C. > > This patchset depends on the following patchset: > http://patchwork.ozlabs.org/patch/192742/ > http://patchwork.ozlabs.org/patch/192743/ > http://patchwork.ozlabs.org/patch/192744/ > ... > http://patchwork.ozlabs.org/patch/192765/ > > Changes in v2: > - added multi_i2c driver; > - modified s3c24x0_i2c driver > - modified soft_i2c driver > - modified exynos4_get_i2c_clk function; > > Piotr Wilczek (9): > exynos:clock: Add i2c clock > exynos:cpu: Add Exynos4 I2C spacing > exynos:pinmux: Add pinmux support for i2c > drivers:i2c: Modify I2C driver for Exynos4 > drivers:i2c: Add support for multi I2C > driver:i2c: Modify Soft I2C driver for Multi-I2C > driver:i2c: Modify s3c24x0_i2c driver for Multi-I2C > drivers:i2c: modify I2C header for Multi-I2C > arm:trats: Use Multi-I2C on Trarts board > > arch/arm/cpu/armv7/exynos/clock.c | 17 +++++ > arch/arm/cpu/armv7/exynos/pinmux.c | 51 +++++++++++++ > arch/arm/include/asm/arch-exynos/cpu.h | 2 + > board/samsung/trats/trats.c | 35 +++++++++- > drivers/i2c/Makefile | 1 + > drivers/i2c/multi_i2c.c | 124 ++++++++++++++++++++++++++++++++ > drivers/i2c/s3c24x0_i2c.c | 89 +++++++++++++++++++---- > drivers/i2c/soft_i2c.c | 60 ++++++++++++++-- > include/configs/trats.h | 9 ++- > include/i2c.h | 11 +++ > include/multi_i2c.h | 62 ++++++++++++++++ > 11 files changed, 439 insertions(+), 22 deletions(-) > create mode 100644 drivers/i2c/multi_i2c.c > create mode 100644 include/multi_i2c.h bye, Heiko -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany