Commit graph

67 commits

Author SHA1 Message Date
Heiko Schocher
f300dccde4 i2c, avr32: fix compiler warning "input is not relaxable"
compiling U-Boot for avr32 boards shows since
commit 3d1957f0ea "dm: i2c: Add support for multiplexed I2C buses"
this warning:

Building current source for 4 boards (4 threads, 8 jobs per thread)
     avr32:  +   atstk1002
+(atstk1002) drivers/i2c/built-in.o: warning: input is not relaxable
     avr32:  +   grasshopper
+(grasshopper) drivers/i2c/built-in.o: warning: input is not relaxable
     avr32:  +   atngw100
+(atngw100) drivers/i2c/built-in.o: warning: input is not relaxable
     avr32:  +   atngw100mkii
+(atngw100mkii) drivers/i2c/built-in.o: warning: input is not relaxable
    0    4    0 /4      0:00:16  : atngw100mkii

Fix it.

Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Roger Meier <r.meier@siemens.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
2015-11-23 14:47:48 +01:00
Stefan Roese
68282f55b8 arm: Remove unused ST-Ericsson u8500 arch
This arch does not seem to be supported / used at all in the current
U-Boot mainline source tree any more. So lets remove the core u8500 code
and code that was only referenced by this platform.

Please note that this patch also removes these config options:

- CONFIG_PL011_SERIAL_RLCR
- CONFIG_PL011_SERIAL_FLUSH_ON_INIT

As they only seem to be referenced by u8500 based boards. Without any
such board in the current code, these config option don't make sense
any more. Lets remove them as well.

If someone still wants to use this platform, then please send patches
to re-enable support by adding at least one board that references this
code.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: John Rigby <john.rigby@linaro.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-09-15 15:05:21 -04:00
Simon Glass
3437469985 rockchip: Add I2C driver
Add an I2C driver for the Rockchip RK3288, using driver model. It should work
for other Rockchip SoCs also.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-09-02 21:28:24 -06:00
Simon Glass
f48eaf01b2 cros_ec: Support the LDO access method used by spring
Add a driver to support the special LDO access used by spring. This is a
custom method in the cros_ec protocol - it does not use an I2C
pass-through.

There are two implementation choices:

1. Write a special LDO driver which can talk across the EC. Duplicate all
the logic from TPS65090 for retrying when the LDO fails to come up.

2. Write a special I2C bus driver which pretends to be a TPS65090 and
transfers reads and writes using the LDO message.

Either is distasteful. The latter method is chosen since it results in less
code duplication and a fairly simple (30-line) implementation of the core
logic.

The crosec 'ldo' subcommand could be removed (since i2c md/mw will work
instead) but is retained as a convenience.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-08-05 21:06:11 -06:00
Simon Glass
cc456bd7df dm: cros_ec: Convert the I2C tunnel code to use driver model
The Chrome OS EC supports tunnelling through to an I2C bus on the EC. This
currently uses a copy of the I2C command code and a special 'crosec'
sub-command.

With driver model we can define an I2C bus which tunnels through to the EC,
and use the normal 'i2c' command to access it. This simplifies the code and
removes some duplication.

Add an I2C driver which tunnels through to the EC. Adjust the EC code to
support binding child devices so that it can be set up. Adjust the existing
I2C xfer function to fit driver model better.

For now the old code remains to allow things to still work. It will be
removed in a later patch once the new flow is fully enabled.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-08-05 21:06:11 -06:00
Simon Glass
3d1957f0ea dm: i2c: Add support for multiplexed I2C buses
Add a new I2C_MUX uclass. Devices in this class can multiplex between
several I2C buses, selecting them one at a time for use by the system.
The multiplexing mechanism is left to the driver to decide - it may be
controlled by GPIOs, for example.

The uclass supports only two methods: select() and deselect().

The current mux state is expected to be stored in the mux itself since
it is the only thing that knows how to make things work. The mux can
record the current state and then avoid switching unless it is necessary.
So select() can be skipped if the mux is already in the correct state.
Also deselect() can be made a nop if required.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-08-05 21:06:10 -06:00
Przemyslaw Marczak
c54473cb25 dm: i2c: add i2c-gpio driver
This commit adds driver model support to software emulated i2c bus driver.
This driver supports kernel-style device tree bindings. Fdt properties in use:
- compatible - "i2c-gpio"
- gpios      - data and clock GPIO pin phandles
- delay-us   - micro seconds delay between GPIOs toggle operations,
               which is 1/4 of I2C speed clock period.

Added:
- Config: CONFIG_DM_I2C_GPIO
- File: drivers/i2c/i2c-gpio.c
- File: doc/device-tree-bindings/i2c/i2c-gpio.txt

Driver base code is taken from: drivers/i2c/soft-i2c.c, changes:
- use "i2c-gpio" naming
- update comments style
- move preprocesor macros into functions
- add device tree support
- add driver model i2c support
- code cleanup,
- add Kconfig entry

Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Added braces in i2c_gpio_xfer() to fix style nit:
Signed-off-by: Simon Glass <sjg@chromium.org>
2015-04-18 11:11:17 -06:00
Albert ARIBAUD \(3ADEV\)
5e862b9539 lpc32xx: i2c: add LPC32xx I2C interface support
Signed-off-by: Albert ARIBAUD (3ADEV) <albert.aribaud@3adev.fr>
2015-04-10 14:23:07 +02:00
Simon Glass
73845350b6 dm: i2c: Add a compatbility layer
For boards which use multiple I2C devices, or for SOCs which support
multiple boards, we might want to convert these to driver model at different
times. At present this is difficult because we need to either use
CONFIG_DM_I2C for a board or not.

Add a compatibility layer which implements the old API, thus allowing a
board to move to driver model for I2C without requiring that everything it
uses is moved in the same commit.

Signed-off-by: Simon Glass <sjg@chromium.org>
2015-01-29 17:09:53 -07:00
Masahiro Yamada
238bd0b8ce i2c: UniPhier: add driver for UniPhier FIFO-builtin i2c controller
This commit adds on-chip I2C driver used on newer SoCs of Panasonic
UniPhier platform.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
2015-01-29 17:09:49 -07:00
Masahiro Yamada
26f820f3f1 i2c: UniPhier: add driver for UniPhier i2c controller
This commit adds on-chip I2C driver used on some old Panasonic
UniPhier SoCs.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
2015-01-29 17:09:49 -07:00
Simon Glass
d19de0d314 dm: i2c: Add a sandbox I2C driver
This driver includes some test features such as only supporting certain
bus speeds. It passes its I2C traffic through to an emulator.

Acked-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-12-11 13:18:42 -07:00
Simon Glass
c70c71d833 dm: i2c: Add I2C emulation driver for sandbox
In order to test I2C we need some sort of emulation interface. Add hooks
to allow a driver to emulate an I2C device for sandbox.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-12-11 13:18:42 -07:00
Simon Glass
c6202d857e dm: i2c: Add a uclass for I2C
The uclass implements the same operations as the current I2C framework but
makes some changes to make it fit driver model better:

- Remove the chip address from API calls
- Remove the address length from API calls
- Remove concept of 'current' I2C bus
- Drop all existing init functions

Acked-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Signed-off-by: Simon Glass <sjg@chromium.org>
2014-12-11 13:18:42 -07:00
Scott Jiang
fea9b69acd blackfin: rename bfin-twi_i2c driver to adi_i2c
Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
2014-11-17 08:10:04 +01:00
Stefan Roese
678398b19e i2c: designware: Convert driver to multibus/multiadapter framework
In preparation for the SoCFPGA support of the designware I2C driver,
convert this driver to the common CONFIG_SYS_I2C framework.

This patch converts all users of this driver, this is:

- ST spearxxx boards
- AXS101 (ARC700 platform)

I couldn't test this patch on those boards. Only compile tested for all
spear boards. And tested on SoCFPGA.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Marek Vasut <marex@denx.de>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Tested-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Vipin Kumar <vk.vipin@gmail.com>
Cc: Jeroen Hofstee <jeroen@myspectrum.nl>
2014-10-29 08:56:23 +01:00
Marek Vasut
1fa96e80ec i2c: mxs: Add basic support for i2c framework
This patch just converts the function prototypes used throughout
this driver to match those of the i2c framework. There is so far
no functional change. This patch does not do the deeper integration
of the framework bits.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Heiko Schocher <hs@denx.de>
2014-10-29 08:55:46 +01:00
Albert ARIBAUD
740f41d3cb Merge branch 'u-boot-sunxi/master' into 'u-boot-arm/master' 2014-07-28 10:12:45 +02:00
Hans de Goede
0db2bbdc04 mvtwsi: convert to CONFIG_SYS_I2C framework
Note this has only been tested on Allwinner sunxi devices (support for which
gets introduced by a later patch).

The kirkwood changes have been compile tested using the wireless_space board
config, the orion5x changes have been compile tested using the edminiv2 board
config.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Heiko Schocher <hs@denx.de>
2014-07-16 19:56:24 +01:00
Dirk Eibach
b46226bdb5 i2c: IHS I2C master driver
IHS I2C master support was merely a hack in the osd driver.
Now it is a proper u-boot I2C framework driver, supporting the
v2.00 master features.

Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc>
2014-07-07 19:47:18 -04:00
Vitaly Andrianov
e8459dcc33 i2c, davinci: convert driver to new mutlibus/mutliadapter framework
- add davinci driver to new multibus/multiadpater support
    - adapted all config files, which uses this driver

Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Acked-by: Heiko Schocher <hs@denx.de>
2014-04-17 17:24:38 -04:00
Darwin Rambo
4bded3a367 i2c: kona: Add Kona I2C driver
Add support for the Kona I2C controller found on Broadcom mobile SoCs.

Signed-off-by: Darwin Rambo <drambo@broadcom.com>
Reviewed-by: Steve Rae <srae@broadcom.com>
Reviewed-by: Tim Kryger <tkryger@linaro.org>
2014-02-22 19:30:39 +01:00
Piotr Wilczek
2d8f1e2769 driver:i2c:s3c24x0: adapt driver to new i2c
This patch adapts the s3c24x0 driver to the new i2c framework.
Config file is modified for all the boards that use the driver.

Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
CC: Minkyu Kang <mk7.kang@samsung.com>
CC: Heiko Schocher <hs@denx.de>
CC: Inderpal Singh <inderpal.singh@linaro.org>
CC: David Müller <d.mueller@elsoft.ch>
CC: Chander Kashyap <k.chander@samsung.com>
CC: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Reviewed-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
2013-12-05 07:39:38 +01:00
Heiko Schocher
85bb251b39 i2c, omap1510: remove i2c driver
remove omap1510 i2c driver, as there is no board which uses it

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Jian Zhang <jzhang@ti.com>
2013-11-13 06:18:31 +01:00
Heiko Schocher
0bdffe71fd i2c, zynq: convert zynq i2c driver to new multibus/multiadapter framework
- add zync i2c driver to new multibus/multiadpater support
- adapted all config files, which uses this driver

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Michal Simek <michal.simek@xilinx.com>
2013-11-13 06:18:27 +01:00
Heiko Schocher
6789e84eca i2c, omap24xx: convert driver to new mutlibus/mutliadapter framework
- add omap24xx driver to new multibus/multiadpater support
- adapted all config files, which uses this driver

Tested on the am335x based siemens boards rut, dxr2 and pxm2
posted here:
http://patchwork.ozlabs.org/patch/263211/

Signed-off-by: Heiko Schocher <hs@denx.de>
Tested-by: Tom Rini <trini@ti.com>
Cc: Lars Poeschel <poeschel@lemonage.de>
Cc: Steve Sakoman <sakoman@gmail.com>
Cc: Thomas Weber <weber@corscience.de>
Cc: Tom Rix <Tom.Rix@windriver.com>
Cc: Grazvydas Ignotas <notasas@gmail.com>
Cc: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Cc: Luca Ceresoli <luca.ceresoli@comelit.it>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Ilya Yanok <yanok@emcraft.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Nishanth Menon <nm@ti.com>
Cc: Pali Rohár <pali.rohar@gmail.com>
Cc: Peter Barada <peter.barada@logicpd.com>
Cc: Nagendra T S  <nagendra@mistralsolutions.com>
Cc: Michael Jones <michael.jones@matrix-vision.de>
Cc: Raphael Assenat <raph@8d.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Stefano Babic <sbabic@denx.de>
2013-11-13 06:18:17 +01:00
Nobuhiro Iwamatsu
2035d77d79 i2c: sh_i2c: Update to new CONFIG_SYS_I2C framework
This updates to new I2C framwwork on sh_i2c.
And this also updates boards(kzm9g and ecovec) that using sh_i2c.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2013-11-13 06:08:26 +01:00
Masahiro Yamada
710f1d3d5f drivers: convert makefiles to Kbuild style
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-10-31 13:26:01 -04:00
Nobuhiro Iwamatsu
1086bfa9f4 i2c: Add support for Renesas rcar
This supports i2c controller for Renesas rcar.

Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
2013-10-17 07:20:25 +02:00
trem
fac9640895 i2c: mxc: move to new subsystem
Signed-off-by: Philippe Reynes <tremyfr@yahoo.fr>
2013-10-17 07:20:24 +02:00
Masahiro Yamada
a341f649d7 drivers: s3c44b0_i2c: delete an unused driver
Since commit 5dc5f36 removed B2 board support,
there are no boards enabling s3c44b0_i2c.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Andrea Scian <andrea.scian@dave-tech.it>
Acked-by: Heiko Schocher <hs@denx.de>
2013-09-19 09:51:52 +02:00
Tom Rini
c2120fbfbc Merge branch 'master' of git://git.denx.de/u-boot-i2c
The sandburst-specific i2c drivers have been deleted, conflict was just
over the SPDX conversion.

Conflicts:
	board/sandburst/common/ppc440gx_i2c.c
	board/sandburst/common/ppc440gx_i2c.h

Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:50:24 -04:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Kuo-Jung Su
3cff842bca i2c: add Faraday FTI2C010 I2C controller support
Faraday FTI2C010 is a multi-function I2C controller
which supports both master and slave mode.
This patch simplily implements the master mode only.

Signed-off-by: Kuo-Jung Su <dantesu@faraday-tech.com>
CC: Heiko Schocher <hs@denx.de>
2013-07-23 08:34:58 +02:00
Dirk Eibach
880540decf i2c, ppc4xx_i2c: switch to new multibus/multiadapter support
Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc>
Cc: Heiko Schocher <hs@denx.de>
Cc: Stefan Roese <sr@denx.de>
Tested-by: Stefan Roese <sr@denx.de>
2013-07-23 08:34:56 +02:00
Simon Glass
1f2ba722ac tegra: i2c: Enable new CONFIG_SYS_I2C framework
This enables CONFIG_SYS_I2C on Tegra, updating existing boards and the Tegra
i2c driver to support this.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Heiko Schocher <hs@denx.de>
2013-07-23 08:34:55 +02:00
Heiko Schocher
00f792e0df i2c, fsl_i2c: switch to new multibus/multiadapter support
- added to fsl_i2c driver new multibus/multiadpater support
- adapted all config files, which uses this driver

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
2013-07-23 08:34:53 +02:00
Heiko Schocher
ea818dbbcd i2c, soft-i2c: switch to new multibus/multiadapter support
- added to soft_i2c driver new multibus/multiadpater support
- adapted all config files, which uses this driver

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
2013-07-23 05:54:29 +02:00
Heiko Schocher
385c9ef5a7 i2c: add i2c_core and prepare for new multibus support
This Patch introduce the new i2c_core file, which holds
the I2C core functions, for the rework of the multibus/
multiadapter support.
Also adds changes in i2c.h for the new I2C multibus/multiadapter
support. This new support can be activated with the
CONFIG_SYS_I2C define.

Signed-off-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
2013-07-23 05:54:28 +02:00
Michal Simek
8934f78465 i2c: zynq: Add support for Xilinx Zynq
Support Xilinx Zynq i2c controller.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Tom Rini <trini@ti.com>
2013-04-30 11:39:28 +02:00
Vipin KUMAR
031ed2fa74 i2c: Add support for designware i2c controller
Earlier, a driver exists in the u-boot source for designware i2c interface. That
driver was specific to spear platforms. This patch implements the i2c controller
as a generic driver which can be used by multiple platforms

The driver files are now renamed to designware_i2c.c and designware_i2c.h and
these are moved into drivers/i2c folder for reusability by other
platforms

Signed-off-by: Vipin Kumar <vipin.kumar@st.com>
Signed-off-by: Amit Virdi <amit.virdi@st.com>
2012-04-24 09:56:37 +02:00
Nobuhiro Iwamatsu
2d344a2ab2 sh: i2c: Add support I2C controller of SH7734
Renesas SH7734 has two I2C interfaceis.
This supports these I2C.

V5: - include i2c.h.
    - Add check of icsr bit polling logic.
	- Implement i2c_probe.
V4: - Remove sh_i2c_dump_reg function.
    - Use puts() when there's no format.
    - Chnage check for I2C bus number.
    - Remove space before the semi-colon.
V3: - Fix error for whitespace.
V2: - Changed bit control to use the clr|set|clrsetbits_* functions.
    - Fix wrong comment style.
    - Add new line before for loop in i2c_read.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Acked-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2012-04-24 09:40:04 +02:00
Yen Lin
96a78ac0c4 tegra: i2c: Add I2C driver
Add basic i2c driver for Tegra2 with 8- and 16-bit address support.
The driver requires CONFIG_OF_CONTROL to obtain its configuration
from the device tree.

(Simon Glass: sjg@chromium.org modified for upstream)

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2012-03-29 08:12:50 +02:00
Nobuhiro Iwamatsu
3dab3e0e67 i2c: sh: Add support I2C for Renesas SH
This supports I2C of Renesas SH.
I tested on SH7724.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
CC: Heiko Schocher <hs@denx.de>
2011-11-23 21:22:26 +01:00
Marek Vasut
f4f680aa36 iMX28: Add I2C bus driver
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
Acked-by: Heiko Schocher<hs@denx.de>
2011-11-11 11:36:57 +01:00
Michael Brandt
d3d6427a3f I2C: Add driver for ST-Ericsson U8500 i2c
Signed-off-by: John Rigby <john.rigby@linaro.org>
CC: Heiko Schocher <hs@denx.de>
2011-06-01 19:22:47 +02:00
Lei Wen
68432c2743 pxa: move i2c driver to the common place
For better sharing with other platform other than pxa's,
it is more convenient to put the driver to the common place.

Acked-by: Heiko Schocher <hs@denx.de>
Acked-by: Prafulla Wadaskar <prafulla@marvell.com>
Signed-off-by: Lei Wen <leiwen@marvell.com>
2011-04-27 19:38:07 +02:00
Sebastien Carlier
6d8962e814 Switch from archive libraries to partial linking
Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils.  As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".

This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.

The name of each former library archive is preserved except for
extensions which change from ".a" to ".o".  This commit updates
references accordingly where needed, in particular in some linker
scripts.

This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols.  Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.

Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
2010-11-17 21:02:18 +01:00
Albert Aribaud
01ec99d969 i2c: rename kirkwood_i2c to mvtwsi
This driver is not kirkwood-specific and can also be used
e.g. by orion5x. Rename to a SoC-neutral name.

Signed-off-by: Albert Aribaud <albert.aribaud@free.fr>
Acked-by: Prafulla Wadaskar<prafulla@marvell.com>
Acked-by: Heiko Schocher<hs@denx.de>
2010-08-30 14:10:23 +02:00
Stefan Roese
d0b0dcaa22 i2c: Move PPC4xx I2C driver into drivers/i2c directory
This patch moves the PPC4xx specific I2C device driver into the I2C
drivers directory. All 4xx config headers are updated to include this
driver.

Signed-off-by: Stefan Roese <sr@denx.de>
2010-04-06 08:10:41 +02:00