| Age | Commit message (Collapse) | Author |
|---|
|
The hw can read up to 32 bytes at a time. If we need
more than one chunk, we have to enter the plain RX mode.
Signed-off-by: Wadim Egorov <[email protected]>
Acked-by: Philipp Tomsich <[email protected]>
|
|
This converts the following to Kconfig:
CONFIG_SYS_I2C_BUS_MAX
Signed-off-by: Adam Ford <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
[trini: Fix AM43XX drop AM44XX]
Signed-off-by: Tom Rini <[email protected]>
|
|
For consistency with other platforms and in preparation of Kconfig
migration, let's change Several TI platforms that use I2C_BUS_MAX
to CONFIG_SYS_I2C_BUS_MAX
Signed-off-by: Adam Ford <[email protected]>
|
|
Add an i2c mux driver providing access to i2c bus segments using a
hardware MUX sitting on a master bus and controlled through gpio pins.
E.G. something like:
---------- ---------- Bus segment 1 - - - - -
| | SCL/SDA | |-------------- | |
| |------------| |
| | | | Bus segment 2 | |
| Linux | GPIO 1..N | MUX |--------------- Devices
| |------------| | | |
| | | | Bus segment M
| | | |---------------| |
---------- ---------- - - - - -
SCL/SDA of the master I2C bus is multiplexed to bus segment 1..M
according to the settings of the GPIO pins 1..N.
Note commit log from kernel
commit 92ed1a76("i2c: Add generic I2C multiplexer using GPIO API")
Signed-off-by: Peng Fan <[email protected]>
Tested-by: Peng Fan <[email protected]> (i.MX6QP-Sabreauto)
Cc: Heiko Schocher <[email protected]>
Cc: Stefano Babic <[email protected]>
Cc: Simon Glass <[email protected]>
|
|
Add i2c driver which can be used on both STM32F7 and STM32H7.
This I2C block supports the following features:
_ Slave and master modes
_ Multimaster capability
_ Standard-mode (up to 100 kHz)
_ Fast-mode (up to 400 kHz)
_ Fast-mode Plus (up to 1 MHz)
_ 7-bit and 10-bit addressing mode
_ Multiple 7-bit slave addresses (2 addresses, 1 with configurable mask)
_ All 7-bit addresses acknowledge mode
_ General call
_ Programmable setup and hold times
_ Easy to use event management
_ Optional clock stretching
_ Software reset
Signed-off-by: Christophe Kerello <[email protected]>
Signed-off-by: Patrice Chotard <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
|
|
Allow sending restart conditions upon direction change as this is
required by some chips.
Signed-off-by: Marek Vasut <[email protected]>
Cc: Stefan Roese <[email protected]>
Cc: Alexey Brodkin <[email protected]>
Cc: Heiko Schocher <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
|
|
This converts the following to Kconfig:
CONFIG_SYS_I2C_OMAP24XX
Signed-off-by: Adam Ford <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
|
|
The driver is for all boards 24XX and up, so let's eliminate the
extra option called CONFIG_SYS_I2C_OMAP34XX since the driver checks
for CONFIG_OMAP34XX we don't need CONFIG_SYS_I2C_OMAP34XX.
Signed-off-by: Adam Ford <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
|
|
Add missing probe function to the device driver to active a device.
Signed-off-by: Wenyou Yang <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
|
|
Update the tegra i2c driver to support a live device tree.
Signed-off-by: Simon Glass <[email protected]>
Tested-by: Marcel Ziswiler <[email protected]>
Tested-on: Beaver, Jetson-TK1
Tested-by: Stephen Warren <[email protected]>
|
|
commit 2eb48ff7a210d ("powerpc, 8260: remove support for mpc8260")
removed support for 8260 CPU.
This patch remove some remainders.
Signed-off-by: Christophe Leroy <[email protected]>
|
|
|
|
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/<SOC>.
This change is also coherent with the structure in kernel.
Signed-off-by: Stefano Babic <[email protected]>
CC: Fabio Estevam <[email protected]>
CC: Akshay Bhat <[email protected]>
CC: Ken Lin <[email protected]>
CC: Marek Vasut <[email protected]>
CC: Heiko Schocher <[email protected]>
CC: "Sébastien Szymanski" <[email protected]>
CC: Christian Gmeiner <[email protected]>
CC: Stefan Roese <[email protected]>
CC: Patrick Bruenn <[email protected]>
CC: Troy Kisky <[email protected]>
CC: Nikita Kiryanov <[email protected]>
CC: Otavio Salvador <[email protected]>
CC: "Eric Bénard" <[email protected]>
CC: Jagan Teki <[email protected]>
CC: Ye Li <[email protected]>
CC: Peng Fan <[email protected]>
CC: Adrian Alonso <[email protected]>
CC: Alison Wang <[email protected]>
CC: Tim Harvey <[email protected]>
CC: Martin Donnelly <[email protected]>
CC: Marcin Niestroj <[email protected]>
CC: Lukasz Majewski <[email protected]>
CC: Adam Ford <[email protected]>
CC: "Albert ARIBAUD (3ADEV)" <[email protected]>
CC: Boris Brezillon <[email protected]>
CC: Soeren Moch <[email protected]>
CC: Richard Hu <[email protected]>
CC: Wig Cheng <[email protected]>
CC: Vanessa Maegima <[email protected]>
CC: Max Krummenacher <[email protected]>
CC: Stefan Agner <[email protected]>
CC: Markus Niebel <[email protected]>
CC: Breno Lima <[email protected]>
CC: Francesco Montefoschi <[email protected]>
CC: Jaehoon Chung <[email protected]>
CC: Scott Wood <[email protected]>
CC: Joe Hershberger <[email protected]>
CC: Anatolij Gustschin <[email protected]>
CC: Simon Glass <[email protected]>
CC: "Andrew F. Davis" <[email protected]>
CC: "Łukasz Majewski" <[email protected]>
CC: Patrice Chotard <[email protected]>
CC: Nobuhiro Iwamatsu <[email protected]>
CC: Hans de Goede <[email protected]>
CC: Masahiro Yamada <[email protected]>
CC: Stephen Warren <[email protected]>
CC: Andre Przywara <[email protected]>
CC: "Álvaro Fernández Rojas" <[email protected]>
CC: York Sun <[email protected]>
CC: Xiaoliang Yang <[email protected]>
CC: Chen-Yu Tsai <[email protected]>
CC: George McCollister <[email protected]>
CC: Sven Ebenfeld <[email protected]>
CC: Filip Brozovic <[email protected]>
CC: Petr Kulhavy <[email protected]>
CC: Eric Nelson <[email protected]>
CC: Bai Ping <[email protected]>
CC: Anson Huang <[email protected]>
CC: Sanchayan Maity <[email protected]>
CC: Lokesh Vutla <[email protected]>
CC: Patrick Delaunay <[email protected]>
CC: Gary Bisson <[email protected]>
CC: Alexander Graf <[email protected]>
CC: [email protected]
Reviewed-by: Fabio Estevam <[email protected]>
Reviewed-by: Christian Gmeiner <[email protected]>
|
|
This I2C mux is found, for example, on the Turris Omnia board.
Signed-off-by: Marek Behun <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Signed-off-by: Stefan Roese <[email protected]>
|
|
Signed-off-by: Christophe Leroy <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
|
|
AVR32 is gone. It's already more than two years for no support in Buildroot,
even longer there is no support in GCC (last version is heavily patched 4.2.4).
Linux kernel v4.12 got rid of it (and v4.11 didn't build successfully).
There is no good point to keep this support in U-Boot either.
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Signed-off-by: Andy Shevchenko <[email protected]>
|
|
There was for long time no activity in the 4xx area.
We need to go further and convert to Kconfig, but it
turned out, nobody is interested anymore in 4xx,
so remove it.
Signed-off-by: Heiko Schocher <[email protected]>
|
|
There was for long time no activity in the 8260 area.
We need to go further and convert to Kconfig, but it
turned out, nobody is interested anymore in 8260,
so remove it.
Signed-off-by: Heiko Schocher <[email protected]>
|
|
There was for long time no activity in the 8xx area.
We need to go further and convert to Kconfig, but it
turned out, nobody is interested anymore in 8xx,
so remove it (with a heavy heart, knowing that I remove
here the root of U-Boot).
Signed-off-by: Heiko Schocher <[email protected]>
|
|
This is dead code now. Drop it.
Signed-off-by: Simon Glass <[email protected]>
|
|
This is not needed in this driver. Drop it.
Signed-off-by: Simon Glass <[email protected]>
|
|
Update the i2c uclass to support a live device tree.
Signed-off-by: Simon Glass <[email protected]>
|
|
Add support for requesting GPIOs with a live device tree.
This involves adjusting the function signature for the legacy function
gpio_request_by_name_nodev(), so fix up all callers.
Signed-off-by: Simon Glass <[email protected]>
Fixes to stm32f746-disco.c:
Signed-off-by: Tom Rini <[email protected]>
|
|
Adjust this function to us an ofnode instead of an offset, so it can be
used with livetree. This involves updating all callers.
Signed-off-by: Simon Glass <[email protected]>
|
|
These support the flat device tree. We want to use the dev_read_..()
prefix for functions that support both flat tree and live tree. So rename
the existing functions to avoid confusion.
In the end we will have:
1. dev_read_addr...() - works on devices, supports flat/live tree
2. devfdt_get_addr...() - current functions, flat tree only
3. of_get_address() etc. - new functions, live tree only
All drivers will be written to use 1. That function will in turn call
either 2 or 3 depending on whether the flat or live tree is in use.
Note this involves changing some dead code - the imx_lpi2c.c file.
Signed-off-by: Simon Glass <[email protected]>
|
|
This header includes things that are needed to make driver build. Adjust
existing users to include that always, even if other dm/ includes are
present
Signed-off-by: Simon Glass <[email protected]>
|
|
|
|
We have nothing defining CONFIG_OMAP243X since we dropped the omap243x
platforms, drop these tests.
Signed-off-by: Tom Rini <[email protected]>
Acked-by: Heiko Schocher <[email protected]>
|
|
This option is not used by any boards. Drop it.
Signed-off-by: Simon Glass <[email protected]>
|
|
Drop use of this long-deprecated option.
Signed-off-by: Simon Glass <[email protected]>
|
|
New i2c_read, i2c_write and i2c_probe functions, tested on OMAP4
(4430/60/70), OMAP5 (5430) and AM335X (3359) were added in 960187ffa125(
"ARM: OMAP: I2C: New read, write and probe functions") but not tested
on OMAP3. This patch will allow the updated drivers using device tree and
DM_I2C to operate on OMAP3.
Signed-off-by: Adam Ford <[email protected]>
Reviewed-by: Lokesh Vutla <[email protected]>
|
|
Convert davinci i2c driver to driver model.
Signed-off-by: Franklin S Cooper Jr <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
|
|
The i2c driver will be converted to support device model. In preparation
for that change split the various functions into two parts. This will
allow device model specific driver to reuse the majority of the code from
the non device model implementation.
Also rename the probe function to probe_chip to better reflect its
purpose.
Signed-off-by: Franklin S Cooper Jr <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
|
|
|
|
Add Device Model based I2C driver for ast2500/ast2400 SoCs.
The driver is very limited, it only supports master mode and
synchronous byte-by-byte reads/writes, no DMA or Pool Buffers.
Signed-off-by: Maxim Sloyko <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Acked-by: Heiko Schocher <[email protected]>
|
|
This commit adds support for DM I2C on sunxi platform. It can coexist
with old style sunxi I2C driver, because it is still used in SPL and
by some SoCs.
Because sunxi platform doesn't yet support DM clk, reset and pinctrl
driver, workaround is needed to enable clocks and set resets and
pinctrls. This is done by calling i2c_init_board() in board_init().
This means that CONFIG_I2Cx_ENABLE options needs to be correctly set
in order to use needed I2C controller.
Commit is based on the previous patch made by Philipp Tomsich
Signed-off-by: Jernej Skrabec <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Signed-off-by: Maxime Ripard <[email protected]>
|
|
|
|
Use CONFIG_ARCH_LS1021A instead.
Signed-off-by: York Sun <[email protected]>
|
|
To enable mipi display, we need to enable pmic
rk808 first for lcd3v3 power,which use i2c0 to
communicate with soc. So enable i2c0.
Signed-off-by: Eric Gao <[email protected]>
Acked-by: Simon Glass <[email protected]>
|
|
These are not used in U-Boot. Manual relocation fixup is used by blackfin
but that is being removed.
Signed-off-by: Simon Glass <[email protected]>
|
|
The architecture is currently unmaintained, remove.
Cc: Benjamin Matthews <[email protected]>
Cc: Chong Huang <[email protected]>
Cc: Dimitar Penev <[email protected]>
Cc: Haitao Zhang <[email protected]>
Cc: I-SYST Micromodule <[email protected]>
Cc: M.Hasewinkel (MHA) <[email protected]>
Cc: Marek Vasut <[email protected]>
Cc: Martin Strubel <[email protected]>
Cc: Peter Meerwald <[email protected]>
Cc: Sonic Zhang <[email protected]>
Cc: Valentin Yakovenkov <[email protected]>
Cc: Wojtek Skulski <[email protected]>
Cc: Wojtek Skulski <[email protected]>
Signed-off-by: Tom Rini <[email protected]>
|
|
The Cortex-A9 socs rk3066 and rk3188 share the IP but have their own
compatible values, so add them to make the i2c on these platforms accessible.
Signed-off-by: Heiko Stuebner <[email protected]>
Acked-by: Simon Glass <[email protected]>
|
|
This patch allows using i2c commands (e.g. "i2c probe", "i2c md", etc)
without the need to first select the bus number with e.g. "i2c dev 0".
This is the "i2c" command behavior similar to the one from pre DM, where
by default bus 0 was immediately accessible.
Signed-off-by: Lukasz Majewski <[email protected]>
|
|
This patch updates the way in which psc, sscl and ssch I2C parameters are
calculated to be in sync with v4.9 Linux kernel
SHA1: 69973b830859bc6529a7a0468ba0d80ee5117826
in the ./drivers/i2c/busses/i2c-omap.c
The previous method was causing several issues:
- The internal I2C frequency (after prescaler) was far above recommended
one (7 - 12 MHz [*]) - the current approach brings better noise suppression
(as stated in Linux commit: SHA1: 84bf2c868f3ca996e5bb)
- The values calculated (psc, sscl and ssch) were far from optimal, which
caused on the test platform (AM57xx) the I2C0 SCL signal low time (Fast
Mode) of ~1.0us (the standard requires > 1.3 us).
[*] for AM57xx TRM SPRUHZ6G, Table 24,7
"HS I2C Register Values for Maximum I2C Bit Rates in I2C F/S, I2C HS Modes"
Signed-off-by: Lukasz Majewski <[email protected]>
|
|
v4.9 Linux release:
SHA1: 69973b830859bc6529a7a0468ba0d80ee5117826
in the ./drivers/i2c/busses/i2c-omap.c
recommends to use SCLH=5 and SCLL=7 values.
This patch sets them to default.
Signed-off-by: Lukasz Majewski <[email protected]>
|
|
Normally, this would probably be done by adding devicetree aliases
to the main dtsi file for the lpc32xx and using bus->req_seq instead.
Since we want to have consistent i2c numbering, we cannot force the
bus->req_seq because. If for instance we have 3 buses numbered
from 0 to 2 with i2c0 enabled, i2c1 disabled and i2c2 enabled;
i2c2 can be selected using 'i2c dev 1' and 'i2c dev 2' commands
because a bus can be probed using req_seq or seq interchangeably.
Signed-off-by: Liam Beguin <[email protected]>
Signed-off-by: Sylvain Lemieux <[email protected]>
|
|
Since the lpc32xx i2c driver does not yet support the devicetree bindings,
this structure is also needed by the board file as the hardware description
is done there.
Signed-off-by: Liam Beguin <[email protected]>
Signed-off-by: Sylvain Lemieux <[email protected]>
|
|
Removed note in the LPC32xx I2C driver for DM conversation.
Signed-off-by: Sylvain Lemieux <[email protected]>
|
|
Adding DM specific wrapper functions and definitions.
Signed-off-by: Liam Beguin <[email protected]>
Signed-off-by: Sylvain Lemieux <[email protected]>
|
|
This is part of the prep work for the migration to the driver model.
It will enable the driver to support DM and non-DM configurations
using the same functions.
Signed-off-by: Liam Beguin <[email protected]>
Signed-off-by: Sylvain Lemieux <[email protected]>
|
