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Replaced misspelled words "parition"/"paritioning" (missing 't') in two
Kconfig files by correct words "partition"/"partitioning"
Signed-off-by: Simon Goldschmidt <[email protected]>
Reviewed-by: Philipp Tomsich <[email protected]>
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Use uclass clk api to get per clk when CONFIG_CLK enabled.
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Anatolij Gustschin <[email protected]>
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Add the PCA9646 support, which is 2-wire bus switch and buffered 4-channel.
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Anatolij Gustschin <[email protected]>
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rk3066 and rk3188 has two I2C controller implementations.
Current I2C driver wan't work with legacy implementation.
Switching between controllers is performed using a bit inside
GFR_SOC_CON1 register. The bit setting is performed by pinctrl
driver. The patch ask pinctrl to do settings.
Signed-off-by: Alexander Kochetkov <[email protected]>
Acked-by: Philipp Tomsich <[email protected]>
Reviewed-by: Philipp Tomsich <[email protected]>
[fix warnings by including the rk3228 variant in the compatible-list]:
Signed-off-by: Philipp Tomsich <[email protected]>
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When doing "i2c dev 4; i2c probe" with ENET daughter card connected
on iMX8QXP MEK board, we met a i2c bus busy issue, that the BBF of
lpi2c always show busy, but the master is idle, and stop is detected
(SDF set).
This patch addes a handling to re-init the lpi2c master for this
case. Then the issue can be worked around.
Signed-off-by: Ye Li <[email protected]>
Acked-by: Peng Fan <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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In xfer function, both bus_i2c_read and bus_i2c_write will
send a STOP command. This causes a problem when reading register
data from i2c device.
Generally two operations comprise the register data reading:
1. Write the register address to i2c device.
START | chip_addr | W | ACK | register_addr | ACK |
2. Read the Data from i2c device.
START | chip_addr | R | ACK | DATA | NACK | STOP
The STOP command should happen at the end of the transfer, otherwise
we will always get data from register address 0
Signed-off-by: Ye Li <[email protected]>
Acked-by: Peng Fan <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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For LPI2C IP, NACK is detected by the rising edge of the ninth clock.
In current uboot driver, once NACK is detected, it will reset and then
disable LPI2C master. As a result, we can never see the falling edge
of the ninth clock.
Signed-off-by: Gao Pan <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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Add compatible string for i.MX8 and move imx_lpi2c.h from mx7ulp directory
to u-boot include directory as a common header file.
Signed-off-by: Ye Li <[email protected]>
Signed-off-by: Peng Fan <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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Use the clk framework to initialize clocks from drivers that need them
instead of having hardcoded frequencies and initializations from board
code.
Signed-off-by: Beniamino Galvani <[email protected]>
Signed-off-by: Neil Armstrong <[email protected]>
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Equivalent code that disables the hidden i2c0 slave already exists in
the Turris Omnia platform specific code. But this hidden i2c0 slave that
interferes the i2c bus is not board specific. Armada 38x SoCs and at
least some Kirkwood variants are affected as well. Add code to disable
this slave to the i2c bus driver to make it work on all affected
hardware.
Use the bind callback because we want this to always run at boot,
regardless of whether U-Boot uses the i2c bus.
Cc: Rabeeh Khoury <[email protected]>
Cc: Chris Packham <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Signed-off-by: Baruch Siach <[email protected]>
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Last user of this driver went away in May 2017 in commit
eb5ba3aefdf0f6c ("i2c: Drop use of CONFIG_I2C_HARD").
Signed-off-by: Tuomas Tynkkynen <[email protected]>
Acked-by: Heiko Schocher <[email protected]>
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Last user of this driver went away in June 2015 in commit
d928664f4101e24 ("powerpc: 74xx_7xx: remove 74xx_7xx cpu support")
Signed-off-by: Tuomas Tynkkynen <[email protected]>
Acked-by: Heiko Schocher <[email protected]>
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Add derivative of the rcar_i2c driver which is capable of
probing itself from DM and uses DT.
Signed-off-by: Marek Vasut <[email protected]>
Cc: Heiko Schocher <[email protected]>
Cc: Nobuhiro Iwamatsu <[email protected]>
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Remove the rcar_i2c driver, since it's no longer used by any
board and will be superseded by a DM and DT capable variant.
Signed-off-by: Marek Vasut <[email protected]>
Cc: Heiko Schocher <[email protected]>
Cc: Nobuhiro Iwamatsu <[email protected]>
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When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <[email protected]>
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We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.
Signed-off-by: Tom Rini <[email protected]>
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Add code to look for a reset manager property. Specifically, look for the
reset-names of 'i2c'. A reset property is an optional feature, so only print
out a warning and do not fail if a reset property is not present.
If a reset property is discovered, then use it to deassert, thus bringing the
IP out of reset.
Signed-off-by: Dinh Nguyen <[email protected]>
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Signed-off-by: Tom Rini <[email protected]>
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Add an option to get the clock speed from the device tree, hence adding
compatibility with DM clock drivers.
Signed-off-by: Mario Six <[email protected]>
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Since bus translations are now fully supported, use a plain
"dev_read_addr" to get the device address from the device tree.
Signed-off-by: Mario Six <[email protected]>
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The fpgamap interface has been switched to a "single function + data
size" interface. Reflect this change in the IHS I2C driver.
Signed-off-by: Mario Six <[email protected]>
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The commit implement a gpio-based software deblocking. The code
extract I2C pins description from device tree, switch pins to GPIO
mode, toggle SCL until slave release SDA, send I2C stop and switch
I2C pins back to I2C mode.
Signed-off-by: Alexander Kochetkov <[email protected]>
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commit 907208c452999 ("powerpc: Partialy restore core of mpc8xx")
didn't bring back support for I2C on the mpc8xx
Signed-off-by: Christophe Leroy <[email protected]>
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Existing driver supports upto 4 I2C controllers.
But some of future NXPs SoCs like lx2160a has
eight I2C controllers.
Update MXC driver to support upto 8 I2C controllers
Signed-off-by: Sriram Dash <[email protected]>
Signed-off-by: Priyanka Jain <[email protected]>
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NXP layerscape platforms like ls1088a, ls2088a
uses MXC I2C Controller.
-Remove dependency of MX6 for the same.
Update related configs to use Kconfig file.
-Add SYS_I2C_MXC_I2C1,_I2C2,_I2C3,_I2C4 in Kconfig
-Add CONFIG_SYS_MXC_I2C1_SPEED,_I2C2_,_I2C3_,_I2C4_ in Kconfig
-Add CONFIG_SYS_MXC_I2C1_SLAVE,_I2C2_,_I2C3_,_I2C4_ in Kconfig
Signed-off-by: Sriram Dash <[email protected]>
Signed-off-by: Priyanka Jain <[email protected]>
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In
lpi2c_status_t result = A;
result = B;
the first assignment has no effect. Let's remove it.
Signed-off-by: Heinrich Schuchardt <[email protected]>
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- add new arch stm32mp for STM32 MPU/Soc based on Cortex A
- support for stm32mp157 SOC
- SPL is used as first boot stage loader
- using driver model for all the drivers, even in SPL
- all security feature are deactivated (ETZC and TZC)
- reused STM32 MCU drivers when it is possible
Signed-off-by: Patrick Delaunay <[email protected]>
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Kmalloc is using memalign allocation function. It is not necessary to
align this structure so to save bytes, we move to calloc.
And kmalloc function can't be used in SPL early stage (in board_init_f())
Signed-off-by: Patrick Delaunay <[email protected]>
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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 <[email protected]>
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This patch added Kconfig support for CONFIG_ZYNQ_I2C0 and
CONFIG_ZYNQ_I2C1 and enabled it in respective defconfig.
Signed-off-by: Vipul Kumar <[email protected]>
Signed-off-by: Siva Durga Prasad Paladugu <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
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This patch added Kconfig support for CONFIG_SYS_I2C_ZYNQ_SPEED
and set it to default value 100000.
Signed-off-by: Vipul Kumar <[email protected]>
Signed-off-by: Siva Durga Prasad Paladugu <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
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This patch added Kconfig support for CONFIG_SYS_I2C_ZYNQ_SLAVE
and set it default to 0.
Signed-off-by: Vipul Kumar <[email protected]>
Signed-off-by: Siva Durga Prasad Paladugu <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
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This patch added Kconfig support for CONFIG_SYS_I2C_ZYNQ.
Signed-off-by: Vipul Kumar <[email protected]>
Signed-off-by: Siva Durga Prasad Paladugu <[email protected]>
Signed-off-by: Michal Simek <[email protected]>
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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 <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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The IIC on Gen2 is compatible with this driver as well, allow it.
Signed-off-by: Marek Vasut <[email protected]>
Cc: Nobuhiro Iwamatsu <[email protected]>
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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 <[email protected]>
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Simplify the driver logic by extracting a common send_buffer method.
Signed-off-by: Mario Six <[email protected]>
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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 <[email protected]>
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Prepare the function interface of the ihs_i2c driver for DM conversion
in a future patch.
While we're at it, fix some style violations, and make the code more readable.
Signed-off-by: Mario Six <[email protected]>
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Make the fsl_i2c driver compatible with a live device tree.
Reviewed-by: Heiko Schocher <[email protected]>
Signed-off-by: Mario Six <[email protected]>
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Some functions in the fsl_i2c driver are declared as inline, even though
they are quite large, which needlessly increases the size of the
resulting binary.
This patch removes the inline declarations.
Reviewed-by: Heiko Schocher <[email protected]>
Signed-off-by: Mario Six <[email protected]>
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Fix some style violations in the fsl_i2c I2C driver, and use shorter
type names for variables in some cases.
Reviewed-by: Heiko Schocher <[email protected]>
Signed-off-by: Mario Six <[email protected]>
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This converts the following to Kconfig:
CONFIG_SYS_OMAP24_I2C_SLAVE
CONFIG_SYS_OMAP24_I2C_SPEED
Signed-off-by: Adam Ford <[email protected]>
Reviewed-by: Paul Kocialkowski <[email protected]>
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The operation should be OR, not BIT OR.
Signed-off-by: Peng Fan <[email protected]>
Cc: Heiko Schocher <[email protected]>
Cc: Stefano Babic <[email protected]>
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The number 4 is dedicated on i.MX7ULP, but lpi2c will be reused on i.MX8,
4 is not valid. The seq number could be configured by alias node.
The following patch will use i2c4 as the begin for i.MX7ULP.
Signed-off-by: Peng Fan <[email protected]>
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The .probe_chip function is supposed to probe an i2c device on the bus to
determine whether a device is answering to a particular address.
at91_i2c_probe_chip() did not do anything resembling this and always
returned 0.
It looks as though at91_i2c_probe_chip() was intended to be a .probe
function for the controller, as it was copied-and-pasted to become
at91_i2c_probe() in 0bc8f640a4d7ed.
Removing the at91_i2c_probe_chip() function makes the higher layer
(i2c_probe_chip()) try a zero-length read transfer to test for the
presence of a device instead, which does work.
Signed-off-by: Alan Ott <[email protected]>
Acked-by: Wenyou Yang <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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The driver must wait for TXRDY after each byte is pushed into
the i2c FIFO before pushing the next byte. Previously this was
not done for the first byte, causing a race condition with zeros
sometimes being sent for the next byte (which is typically the
first actual data byte).
Signed-off-by: Alan Ott <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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Add some comment describing the purpose of struct members and
functions.
Signed-off-by: Beniamino Galvani <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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Change meson_i2c_xfer_msg() to return -EREMOTEIO in case of NACK, as
done by other drivers. Also, don't change the return error in
meson_i2c_xfer().
Signed-off-by: Beniamino Galvani <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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The datasheet doesn't specify a suggested timeout and 500ms seems very
long: reduce it to 100ms.
Signed-off-by: Beniamino Galvani <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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