Commit graph

15 commits

Author SHA1 Message Date
jinghua
85f03f0ea8 i2c: mv_i2c.c: Validate read length in I2C command
The I2C bus will get stuck when reading 0 byte. So we add validation of
the read length in i2c_read(). This issue only occurs on read operation.

Signed-off-by: jinghua <jinghua@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Nadav Haklai <nadavh@marvell.com>
Cc: Kostya Porotchkin <kostap@marvell.com>
Cc: Wilson Ding <dingwei@marvell.com>
Cc: Victor Gu <xigu@marvell.com>
Cc: Hua Jing <jinghua@marvell.com>
Cc: Terry Zhou <bjzhou@marvell.com>
Cc: Hanna Hawa <hannah@marvell.com>
Cc: Haim Boot <hayim@marvell.com>
Cc: Heiko Schocher <hs@denx.de>
2016-09-26 10:42:56 +02:00
Stefan Roese
9ad5a00712 i2c: mv_i2c.c: Enable runtime speed selection (standard vs fast mode)
This patch adds runtime speed configuration to the mv_i2c driver.
Currently standard (max 100kHz) and fast mode (max 400kHz) are
supported.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Nadav Haklai <nadavh@marvell.com>
Cc: Kostya Porotchkin <kostap@marvell.com>
Cc: Wilson Ding <dingwei@marvell.com>
Cc: Victor Gu <xigu@marvell.com>
Cc: Hua Jing <jinghua@marvell.com>
Cc: Terry Zhou <bjzhou@marvell.com>
Cc: Hanna Hawa <hannah@marvell.com>
Cc: Haim Boot <hayim@marvell.com>
Cc: Heiko Schocher <hs@denx.de>
2016-09-26 10:42:37 +02:00
Stefan Roese
0c0f719ad2 i2c: mv_i2c.c: Add DM support
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Nadav Haklai <nadavh@marvell.com>
Cc: Kostya Porotchkin <kostap@marvell.com>
Cc: Wilson Ding <dingwei@marvell.com>
Cc: Victor Gu <xigu@marvell.com>
Cc: Hua Jing <jinghua@marvell.com>
Cc: Terry Zhou <bjzhou@marvell.com>
Cc: Hanna Hawa <hannah@marvell.com>
Cc: Haim Boot <hayim@marvell.com>
Cc: Heiko Schocher <hs@denx.de>
2016-09-26 10:41:59 +02:00
Stefan Roese
7b46ee521e i2c: mv_i2c.c: Prepare driver for DM conversion
To prepare for the DM conversion, we add a layer of compatibility
functions to be used by both the legacy and the DM functions.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Nadav Haklai <nadavh@marvell.com>
Cc: Kostya Porotchkin <kostap@marvell.com>
Cc: Wilson Ding <dingwei@marvell.com>
Cc: Victor Gu <xigu@marvell.com>
Cc: Hua Jing <jinghua@marvell.com>
Cc: Terry Zhou <bjzhou@marvell.com>
Cc: Hanna Hawa <hannah@marvell.com>
Cc: Haim Boot <hayim@marvell.com>
Cc: Heiko Schocher <hs@denx.de>
2016-09-26 10:41:17 +02:00
Stefan Roese
340fcd66cc i2c: mv_i2c.c: Remove CONFIG_HARD_I2C
CONFIG_HARD_I2C is not needed, lets remove it.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Nadav Haklai <nadavh@marvell.com>
Cc: Kostya Porotchkin <kostap@marvell.com>
Cc: Wilson Ding <dingwei@marvell.com>
Cc: Victor Gu <xigu@marvell.com>
Cc: Hua Jing <jinghua@marvell.com>
Cc: Terry Zhou <bjzhou@marvell.com>
Cc: Hanna Hawa <hannah@marvell.com>
Cc: Haim Boot <hayim@marvell.com>
Cc: Heiko Schocher <hs@denx.de>
2016-09-26 10:41:03 +02:00
Stefan Roese
8eff909a56 i2c: mv_i2c.c: cosmetic: Coding style cleanups
Some mostly indentation coding style cleanups. Also, move this driver
to use debug() for debug output.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Nadav Haklai <nadavh@marvell.com>
Cc: Kostya Porotchkin <kostap@marvell.com>
Cc: Wilson Ding <dingwei@marvell.com>
Cc: Victor Gu <xigu@marvell.com>
Cc: Hua Jing <jinghua@marvell.com>
Cc: Terry Zhou <bjzhou@marvell.com>
Cc: Hanna Hawa <hannah@marvell.com>
Cc: Haim Boot <hayim@marvell.com>
Cc: Heiko Schocher <hs@denx.de>
2016-09-26 10:40:41 +02:00
Rob Herring
e6fbc3e4f1 mv_i2c: fix warnings on 64-bit builds
Change addresses to unsigned long to be compatible with 64-bit builds.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Heiko Schocher <hs@denx.de>
2015-03-18 09:13:17 +01:00
Simon Glass
fffff7268b dm: i2c: Make API accessible even without CONFIG_DM
Make the driver model I2C API available always, even if driver model
is not enabled. This allows for a 'soft' switch-over, where drivers can
use the new structures in code which is compiled but not yet used. This
makes migration easier in some cases.

Fix up the existing drivers which define their own 'struct i2c_msg'.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Heiko Schocher <hs@denx.de>
2015-02-12 10:35:33 -07:00
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
Lei Wen
d308c9d35a I2C: mv_i2c: fix multi-bus init issue
When enable the multi-bus, the current_bus is not inited in the original
implementation, which make the i2c operation unpredicatable.

Signed-off-by: Lei Wen <leiwen@marvell.com>
2011-10-03 11:50:09 +02:00
Lei Wen
2be1ed349c I2C: mv_i2c: fix build issue when enable debug option
When DEBUG_I2C is open, the following build issue would shows up.

mv_i2c.c: In function 'i2c_transfer':
mv_i2c.c:257: error: 'ISR' undeclared (first use in this function)
mv_i2c.c:257: error: (Each undeclared identifier is reported only once
mv_i2c.c:257: error: for each function it appears in.)

Signed-off-by: Lei Wen <leiwen@marvell.com>
2011-10-03 11:47:07 +02:00
Lei Wen
adb00bb6a0 I2C: mv_i2c: add multi bus support
Add the ability to support multiple i2c bus for mv_i2c

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 19:38:08 +02:00
Lei Wen
3df619ec2c mv_i2c: use structure to replace the direclty define
Add i2c_clk_enable in the cpu specific code, since previous platform it,
while new platform don't need. In the pantheon and armada100 platform,
this function is defined as NULL one.

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 19:38:08 +02:00
Lei Wen
879de1275a mv_i2c: fix timeout value to be consistent with comments
The original 10000 value would be 100ms, which is not
the comments said.

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
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
Renamed from arch/arm/cpu/pxa/i2c.c (Browse further)