u-boot.git/drivers/i2c, branch v2018.03 Unnamed repository; edit this file 'description' to name the repository. treewide: Fix gdsys mail addresses 2018-03-09T14:23:10+00:00 Mario Six six@gdsys.cc 2018-03-06T07:04:58+00:00 d38826a3dceaa804a559f178f95ce689fd31bdff The @gdsys.cc addresses are supposed to be used for mailing lists. Switch all occurrences of @gdsys.de mail addresses to their @gdsys.cc equivalent. Also, Dirk's address was wrong in one place; fix that as well. Signed-off-by: Mario Six <six@gdsys.cc> 
The @gdsys.cc addresses are supposed to be used for mailing lists.
Switch all occurrences of @gdsys.de mail addresses to their @gdsys.cc
equivalent.

Also, Dirk's address was wrong in one place; fix that as well.

Signed-off-by: Mario Six <six@gdsys.cc>
i2c: Added kconfig support for CONFIG_ZYNQ_I2C0 and CONFIG_ZYNQ_I2C1 2018-03-01T07:03:01+00:00 Vipul Kumar vipul.kumar@xilinx.com 2018-02-16T13:37:22+00:00 e885b4255f88d83461cf5a15b5a5782050687242 This patch added Kconfig support for CONFIG_ZYNQ_I2C0 and CONFIG_ZYNQ_I2C1 and enabled it in respective defconfig. Signed-off-by: Vipul Kumar <vipulk@xilinx.com> Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> 
This patch added Kconfig support for CONFIG_ZYNQ_I2C0 and
CONFIG_ZYNQ_I2C1 and enabled it in respective defconfig.

Signed-off-by: Vipul Kumar <vipulk@xilinx.com>
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
i2c: Added Kconfig support for CONFIG_SYS_I2C_ZYNQ_SPEED 2018-03-01T07:03:01+00:00 Vipul Kumar vipul.kumar@xilinx.com 2018-02-16T13:37:20+00:00 ce3c9a59afd0591a105a316335d7015d8d902367 This patch added Kconfig support for CONFIG_SYS_I2C_ZYNQ_SPEED and set it to default value 100000. Signed-off-by: Vipul Kumar <vipulk@xilinx.com> Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> 
This patch added Kconfig support for CONFIG_SYS_I2C_ZYNQ_SPEED
and set it to default value 100000.

Signed-off-by: Vipul Kumar <vipulk@xilinx.com>
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
i2c: Added Kconfig support for CONFIG_SYS_I2C_ZYNQ_SLAVE 2018-03-01T07:03:01+00:00 Vipul Kumar vipul.kumar@xilinx.com 2018-02-16T13:37:19+00:00 e7affad190fcebcb2c93eed97ae4a74d947cb14d This patch added Kconfig support for CONFIG_SYS_I2C_ZYNQ_SLAVE and set it default to 0. Signed-off-by: Vipul Kumar <vipulk@xilinx.com> Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> 
This patch added Kconfig support for CONFIG_SYS_I2C_ZYNQ_SLAVE
and set it default to 0.

Signed-off-by: Vipul Kumar <vipulk@xilinx.com>
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
i2c: Added Kconfig support for CONFIG_SYS_I2C_ZYNQ 2018-03-01T07:03:00+00:00 Vipul Kumar vipul.kumar@xilinx.com 2018-02-16T13:37:17+00:00 38a69e96b39adb6f47baaa272f266b1fa1be512e This patch added Kconfig support for CONFIG_SYS_I2C_ZYNQ. Signed-off-by: Vipul Kumar <vipulk@xilinx.com> Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> 
This patch added Kconfig support for CONFIG_SYS_I2C_ZYNQ.

Signed-off-by: Vipul Kumar <vipulk@xilinx.com>
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
i2c: mvtwsi.c: Fix set speed 2018-02-19T07:21:38+00:00 Stefan Mavrodiev stefan@olimex.com 2018-02-13T07:27:40+00:00 004b4cdaeca45d4702f0494f517b6fc472ccf4a1 Previous patch for this driver breaks i2c initialization. commit 8bcf12ccce89 ("i2c: mvtwsi.c: Avoid NULL dereference") If actual_speed is passed as NULL in this function: static void __twsi_i2c_init(struct mvtwsi_registers *twsi, int speed, int slaveadd, uint *actual_speed) than __twsi_i2c_set_bus_speed never get called. This causes i2c clock to run on default speed - 2MHz (measured with oscilloscope). This is issue on some boards, sunxi for example, since on I2C0 bus PMU is connected. The bootlogs with and without the patch are as follows: Wihtout the patch: U-Boot SPL 2018.03-rc2 (Feb 13 2018 - 09:23:17 +0200) DRAM: 1024 MiB Failed to set core voltage! Can't set CPU frequency Trying to boot from FEL U-Boot 2018.03-rc2 (Feb 13 2018 - 09:23:17 +0200) Allwinner Technology CPU: Allwinner A20 (SUN7I) Model: Olimex A20-OLinuXino-LIME2 I2C: ready DRAM: 1 GiB MMC: SUNXI SD/MMC: 0 With the patch: U-Boot SPL 2018.03-rc2-00001-g838ff85 (Feb 13 2018 - 09:24:34 +0200) DRAM: 1024 MiB CPU: 912000000Hz, AXI/AHB/APB: 3/2/2 Trying to boot from FEL U-Boot 2018.03-rc2-00001-g838ff85 (Feb 13 2018 - 09:24:34 +0200) Allwinner Technology CPU: Allwinner A20 (SUN7I) Model: Olimex A20-OLinuXino-LIME2 I2C: ready DRAM: 1 GiB MMC: SUNXI SD/MMC: 0 Signed-off-by: Stefan Mavrodiev <stefan@olimex.com> Reviewed-by: Heiko Schocher <hs@denx.de> 
Previous patch for this driver breaks i2c initialization.

commit 8bcf12ccce89 ("i2c: mvtwsi.c: Avoid NULL dereference")

If actual_speed is passed as NULL in this function:
static void __twsi_i2c_init(struct mvtwsi_registers *twsi, int speed,
			    int slaveadd, uint *actual_speed)
than __twsi_i2c_set_bus_speed never get called. This causes i2c clock
to run on default speed - 2MHz (measured with oscilloscope). This is issue
on some boards, sunxi for example, since on I2C0 bus PMU is connected.

The bootlogs with and without the patch are as follows:

Wihtout the patch:
U-Boot SPL 2018.03-rc2 (Feb 13 2018 - 09:23:17 +0200)
DRAM: 1024 MiB
Failed to set core voltage! Can't set CPU frequency
Trying to boot from FEL

U-Boot 2018.03-rc2 (Feb 13 2018 - 09:23:17 +0200) Allwinner Technology

CPU:   Allwinner A20 (SUN7I)
Model: Olimex A20-OLinuXino-LIME2
I2C:   ready
DRAM:  1 GiB
MMC:   SUNXI SD/MMC: 0

With the patch:
U-Boot SPL 2018.03-rc2-00001-g838ff85 (Feb 13 2018 - 09:24:34 +0200)
DRAM: 1024 MiB
CPU: 912000000Hz, AXI/AHB/APB: 3/2/2
Trying to boot from FEL

U-Boot 2018.03-rc2-00001-g838ff85 (Feb 13 2018 - 09:24:34 +0200) Allwinner Technology

CPU:   Allwinner A20 (SUN7I)
Model: Olimex A20-OLinuXino-LIME2
I2C:   ready
DRAM:  1 GiB
MMC:   SUNXI SD/MMC: 0

Signed-off-by: Stefan Mavrodiev <stefan@olimex.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
i2c: rcar_iic: Allow IIC on RCar Gen2 2018-02-17T20:59:22+00:00 Marek Vasut marek.vasut+renesas@gmail.com 2018-02-17T01:17:40+00:00 f51155eced8386b4e63654eef94b1e4a6a42655a The IIC on Gen2 is compatible with this driver as well, allow it. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> 
The IIC on Gen2 is compatible with this driver as well, allow it.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
i2c: mvtwsi.c: Avoid NULL dereference 2018-02-06T06:02:32+00:00 Heinrich Schuchardt xypron.glpk@gmx.de 2018-01-30T23:57:17+00:00 8bcf12ccce89ef9c77d9322930445b4f4ca3b822 For '#ifndef CONFIG_DM_I2C' twsi_i2c_init() passes NULL as 4th parameter to __twsi_i2c_init(). Identified with cppcheck. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> 
For '#ifndef CONFIG_DM_I2C' twsi_i2c_init() passes NULL as
4th parameter to __twsi_i2c_init().

Identified with cppcheck.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
i2c: ihs_i2c: Factor out send_buffer method 2018-02-06T06:02:11+00:00 Mario Six mario.six@gdsys.cc 2018-01-15T10:08:12+00:00 9cef983d1c5d3c4150f70346346ace29b1dfe432 Simplify the driver logic by extracting a common send_buffer method. Signed-off-by: Mario Six <mario.six@gdsys.cc> 
Simplify the driver logic by extracting a common send_buffer method.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
i2c: ihs_i2c: Make DM compatible 2018-02-06T06:01:06+00:00 Mario Six mario.six@gdsys.cc 2018-01-15T10:08:11+00:00 92164216a7383907a38212fd3ca95dc7546ce49f Make the ihs_i2c driver DM-compatible; for legacy boards, the old functions are retained within #ifdefs. No board uses the new DM driver yet; this patch only lays the foundation for future support. Signed-off-by: Mario Six <mario.six@gdsys.cc> 
Make the ihs_i2c driver DM-compatible; for legacy boards, the old functions are
retained within #ifdefs.

No board uses the new DM driver yet; this patch only lays the foundation for
future support.

Signed-off-by: Mario Six <mario.six@gdsys.cc>