u-boot.git/arch/arm/imx-common/i2c-mxv7.c, branch master

imx: reorganize IMX code as other SOCs

2017-07-12T08:17:44+00:00

Change is consistent with other SOCs and it is in preparation
for adding SOMs. SOC's related files are moved from cpu/ to
mach-imx/.

This change is also coherent with the structure in kernel.

Signed-off-by: Stefano Babic 

CC: Fabio Estevam 
CC: Akshay Bhat 
CC: Ken Lin 
CC: Marek Vasut 
CC: Heiko Schocher 
CC: "Sébastien Szymanski" 
CC: Christian Gmeiner 
CC: Stefan Roese 
CC: Patrick Bruenn 
CC: Troy Kisky 
CC: Nikita Kiryanov 
CC: Otavio Salvador 
CC: "Eric Bénard" 
CC: Jagan Teki 
CC: Ye Li 
CC: Peng Fan 
CC: Adrian Alonso 
CC: Alison Wang 
CC: Tim Harvey 
CC: Martin Donnelly 
CC: Marcin Niestroj 
CC: Lukasz Majewski 
CC: Adam Ford 
CC: "Albert ARIBAUD (3ADEV)" 
CC: Boris Brezillon 
CC: Soeren Moch 
CC: Richard Hu 
CC: Wig Cheng 
CC: Vanessa Maegima 
CC: Max Krummenacher 
CC: Stefan Agner 
CC: Markus Niebel 
CC: Breno Lima 
CC: Francesco Montefoschi 
CC: Jaehoon Chung 
CC: Scott Wood 
CC: Joe Hershberger 
CC: Anatolij Gustschin 
CC: Simon Glass 
CC: "Andrew F. Davis" 
CC: "Łukasz Majewski" 
CC: Patrice Chotard 
CC: Nobuhiro Iwamatsu 
CC: Hans de Goede 
CC: Masahiro Yamada 
CC: Stephen Warren 
CC: Andre Przywara 
CC: "Álvaro Fernández Rojas" 
CC: York Sun 
CC: Xiaoliang Yang 
CC: Chen-Yu Tsai 
CC: George McCollister 
CC: Sven Ebenfeld 
CC: Filip Brozovic 
CC: Petr Kulhavy 
CC: Eric Nelson 
CC: Bai Ping 
CC: Anson Huang 
CC: Sanchayan Maity 
CC: Lokesh Vutla 
CC: Patrick Delaunay 
CC: Gary Bisson 
CC: Alexander Graf 
CC: u-boot@lists.denx.de
Reviewed-by: Fabio Estevam 
Reviewed-by: Christian Gmeiner

treewide: replace #include with

2016-09-23T21:55:42+00:00

Now, arch/${ARCH}/include/asm/errno.h and include/linux/errno.h have
the same content.  (both just wrap )

Replace all include directives for  with .

Signed-off-by: Masahiro Yamada 
[trini: Fixup include/clk.]
Signed-off-by: Tom Rini

arm, imx6, i2c: add I2C4 for MX6DL

2015-05-26T12:16:54+00:00

add I2C4 modul for MX6DL based boards.

Signed-off-by: Heiko Schocher

i2c: mxc: refactor i2c driver and support dm

2015-05-15T00:49:36+00:00

1. Introduce a new structure `struct mxc_i2c_bus`, this structure will
   used for non-DM and DM.
2. Remove `struct mxc_i2c_regs` structure, but use register offset to access
   registers based on `base` entry of `struct mxc_i2c_bus`.
3. Remove most `#ifdef I2C_QUIRK_REG`. Using driver_data to contain platform
   flags. A new flag is introduced, I2C_QUIRK_FLAG.
4. Most functions use `struct mxc_i2c_bus` as one of the parameters.
   Make most functions common to DM and non-DM, try to avoid duplicated code.
5. Support DM, but pinctrl is not included. Pinmux setting is still set
   by setup_i2c, but we do not need bus_i2c_init for DM.
6. struct i2c_parms and struct sram_data are removed.
7. Remove bus_i2c_read bus_i2c_write prototype in header file. The frist
   paramter of bus_i2c_init is modified to i2c index. Add new prototype
   i2c_idle_bus and force_bus_idle. Since bus_i2c_init is not good for
   DM I2C and pinctrl is missed, we use a weak function for i2c_idle_bus.
   Board file take the responsibility to implement this function, like this:
   "
   int i2c_idle_bus(struct mxc_i2c_bus *i2c_bus)
   {
	   if (i2c_bus->index == 0)
		   force_bus_idle(i2c_pads_info0);
	   else if (i2c_bus->index == 1)
		   force_bus_idle(i2c_pads_info1);
	   else
		   xxxxxx
   }
   "
8. Introduce a weak function, enable_i2c_clk
9. Tested on an i.MX7 platform. Log info:
 => dm tree
 Class       Probed   Name
 ----------------------------------------
 root        [ + ]    root_driver
 simple_bus  [   ]    |-- soc
 simple_bus  [   ]    |   |-- aips-bus@30000000
 simple_bus  [   ]    |   |   |-- anatop@30360000
 simple_bus  [   ]    |   |   `-- snvs@30370000
 simple_bus  [   ]    |   |-- aips-bus@30400000
 simple_bus  [   ]    |   `-- aips-bus@30800000
 i2c         [   ]    |       |-- i2c@30a20000
 i2c         [   ]    |       `-- i2c@30a40000
 simple_bus  [   ]    `-- regulators
 => i2c dev 0
 Setting bus to 0
 => i2c probe
 Valid chip addresses: 08 50
 => i2c md 8 31
 0031: 08 08 08 08 08 08 08 08 08 08 08 08 08 08 08 08

Signed-off-by: Peng Fan 
Acked-by: Simon Glass

imx: i2c: Zap unnecessary malloc() calls

2014-12-30T13:05:48+00:00

The malloc() calls are unnecessary, just allocate the stuff on stack.
While at it, reorder the code a little, so that only one variable is
used for the text, use snprintf() instead of sprintf() and use %01d
as a formatting string to avoid any possible overflows.

Signed-off-by: Marek Vasut 
Cc: Igor Grinberg 
Cc: Nikita Kiryanov 
Cc: Sean Cross 
Cc: Simon Glass 
Cc: Stefano Babic 
Cc: Tim Harvey 
Reviewed-by: Christian Gmeiner

dm: imx: i2c: Use gpio_request() to request GPIOs

2014-10-22T16:36:55+00:00

GPIOs should be requested before use. Without this, driver model will
not permit the GPIO to be used.

Cc: Igor Grinberg 
Signed-off-by: Simon Glass 
Signed-off-by: Nikita Kiryanov 
Acked-by: Igor Grinberg

imx: Add error checking to setup_i2c()

2014-10-22T16:36:55+00:00

Since this function can fail, check its return value.

Signed-off-by: Simon Glass 
Tested-by: Nikita Kiryanov

Add GPL-2.0+ SPDX-License-Identifier to source files

2013-07-24T13:44:38+00:00

Signed-off-by: Wolfgang Denk 
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini

MX: set a common place to share code for Freescale i.MX

2012-09-10T12:24:29+00:00

Up now only MX5 and MX6 can share code, because they have
a common source directory in cpu/armv7. Other not armv7
i.MX can profit of the same shared code. Move these files
into a directory accessible for all, similar to plat-mxc
in linux.

Signed-off-by: Stefano Babic