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This commit introduces a port of the Linux kernel's driver for the
Mediatek's MT7621 I2C controller.
The port was undertaken as the existing driver intended for Mediatek
I2C controllers (mtk_i2c.c) is not compatible with the MT7621.
To use the driver:
1. Ensure that the mode of the i2c pin group is
configured for "i2c" rather than "gpio".
2. Delete the existing (bitbanged) i2c node from
arch/mips/dts/mt7621.dtsi, or specify:
/delete-node/ &i2c;
3. Declare:
i2c: i2c@1e000900 {
compatible = "mediatek,mt7621-i2c";
reg = <0x1e000900 0x100>;
clocks = <&clk50m>;
clock-names = "sys_clock";
resets = <&rstctrl RST_I2C>;
reset-names = "i2c_reset";
pinctrl-names = "default";
pinctrl-0 = <&i2c_pins>;
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
};
Signed-off-by: Justin Swartz <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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It is confusing to have both "$(PHASE_)" and "$(XPL_)" be used in our
Makefiles as part of the macros to determine when to do something in our
Makefiles based on what phase of the build we are in. For consistency,
bring this down to a single macro and use "$(PHASE_)" only.
Signed-off-by: Tom Rini <[email protected]>
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Co-developed-by: Greg Malysa <[email protected]>
Signed-off-by: Greg Malysa <[email protected]>
Co-developed-by: Ian Roberts <[email protected]>
Signed-off-by: Ian Roberts <[email protected]>
Co-developed-by: Angelo Dureghello <[email protected]>
Signed-off-by: Angelo Dureghello <[email protected]>
Signed-off-by: Vasileios Bimpikas <[email protected]>
Signed-off-by: Utsav Agarwal <[email protected]>
Signed-off-by: Arturs Artamonovs <[email protected]>
Signed-off-by: Oliver Gaskell <[email protected]>
Signed-off-by: Nathan Barrett-Morrison <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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Use XPL_ as the symbol to indicate an SPL build. This means that SPL_ is
no-longer set.
Signed-off-by: Simon Glass <[email protected]>
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Add Support for the Qualcomm Generic Interface (GENI) I2C interface
found on newer Qualcomm SoCs.
The Generic Interface (GENI) is a firmware based Qualcomm Universal
Peripherals (QUP) Serial Engine (SE) Wrapper which can support multiple
bus protocols depending on the firmware type loaded at early boot time
based on system configuration.
It also supports the "I2C Master Hub" which is a single function Wrapper
that only FIFO mode I2C.
It replaces the fixed-function QUP Wrapper found on older SoCs.
The geni-se.h containing the generic GENI Serial Engine registers defines
is imported from Linux.
Only FIFO mode is implemented, neither SE DMA nor GPI DMA are implemented.
Signed-off-by: Neil Armstrong <[email protected]>
Signed-off-by: Caleb Connolly <[email protected]>
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This driver supports the I2C module on the Renesas RZ/G2L (R9A07G044)
SoC, also known as the RIIC module.
This patch is based on both the u-boot driver in the Renesas RZ BSP
3.0.5 release [1] (commit 7fcc1fdc2534), and the Linux v6.7 driver
(commit 0dd3ee311255).
Support for deblocking the I2C bus is included as this may be needed
after triggering a reset via the Power Management IC (PMIC) over I2C
(the PMIC asserts the reset line before the SoC completes the I2C write
transaction with obvious bus locking effects). If the SDA line is
observed to be low during initialisation, we automatically attempt to
deblock.
[1]: https://github.com/renesas-rz/renesas-u-boot-cip
Signed-off-by: Paul Barker <[email protected]>
Reviewed-by: Marek Vasut <[email protected]>
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lib/acpi/acpigen.o is only compiled into SPL when SPL_ACPIGEN is enabled.
Update several files which reference these functions accordingly.
Signed-off-by: Sean Anderson <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
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As the Designware_i2c_pci.c uses ACPI APIs, If some SoCs (StarFive
JH7110) contain Designware i2c and PCI but do not use ACPI,
This file cannot be compiled. So add a new Kconfig for
designware_i2c_pci.c, which depends on ACPIGEN
Signed-off-by: Minda Chen <[email protected]>
Reviewed-by: Leo Yu-Chi Liang <[email protected]>
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Add i2c new register mode driver to support AST2600 i2c
new register mode. AST2600 i2c controller have legacy and
new register mode. The new register mode have global register
support 4 base clock for scl clock selection, and new clock
divider mode.
Signed-off-by: Ryan Chen <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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Add support for Qualcomm I2C QUP driver which is inspired from
corresponding driver in Linux: drivers/i2c/busses/i2c-qup.c.
Currently this driver only support FIFO polling mode which is sufficient
to support devices like eeprom, rtc etc.
Co-developed-by: Mike Worsfold <[email protected]>
Signed-off-by: Mike Worsfold <[email protected]>
Signed-off-by: Sumit Garg <[email protected]>
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This is not used. Drop the driver and Kconfig option.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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This patch adds support for MediaTek I2C interface
Reviewed-by: Heiko Schocher <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Weijie Gao <[email protected]>
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Add Nuvoton BMC NPCM750 i2c driver
Signed-off-by: Jim Liu <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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Add I2C driver code for the Microchip PolarFire SoC.
This driver supports I2C data transfer and probe for I2C
slave addresses.
Signed-off-by: Padmarao Begari <[email protected]>
Reviewed-by: Leo Yu-Chi Liang <[email protected]>
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Move the config option CONFIG_I2C_MV to a Kconfig option
CONFIG_SYS_I2C_MV and move the default definition from config header
files into defconfigs.
Signed-off-by: Marek Behún <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
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This bus controller is used to communicate with an X-Powers AXP PMIC.
Currently, various drivers access PMIC registers through a platform-
specific non-DM "pmic_bus" interface, which depends on the legacy I2C
framework. In order to convert those drivers to use DM_PMIC, this bus
needs a DM_I2C driver.
Refactor the rsb functions to take the base address as a parameter,
and implement both the existing interface (which is still needed in
SPL) and the DM_I2C interface on top of them.
The register for switching between I2C/P2WI/RSB mode is the same across
all PMIC variants, so move that to the common header.
There are only a couple of pairs of hardware/runtime addresses used
across all PMIC variants. So far the code expected only the "primary"
pair, but some PMICs like the AXP305 and AXP805 use the secondary pair,
so add support for that to the DM driver as well.
Signed-off-by: Samuel Holland <[email protected]>
Reviewed-by: Andre Przywara <[email protected]>
Signed-off-by: Andre Przywara <[email protected]>
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This bus controller is used to communicate with an X-Powers AXP PMIC.
Currently, various drivers access PMIC registers through a platform-
specific non-DM "pmic_bus" interface, which depends on the legacy I2C
framework. In order to convert those drivers to use DM_PMIC, this bus
needs a DM_I2C driver.
Refactor the p2wi functions to take the base address as a parameter,
and implement both the existing interface (which is still needed in
SPL) and the DM_I2C interface on top of them.
The register for switching between I2C/P2WI/RSB mode is the same across
all PMIC variants. Move that to the common header, so it can be used by
both interface implementations.
Signed-off-by: Samuel Holland <[email protected]>
Reviewed-by: Andre Przywara <[email protected]>
Signed-off-by: Andre Przywara <[email protected]>
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Prepare v2021.10-rc4
Signed-off-by: Tom Rini <[email protected]>
# gpg: Signature made Tue 14 Sep 2021 06:58:32 PM EDT
# gpg: using RSA key 1A3C7F70E08FAB1707809BBF147C39FF9634B72C
# gpg: Good signature from "Thomas Rini <[email protected]>" [ultimate]
# Conflicts:
# board/Arcturus/ucp1020/spl.c
# cmd/mvebu/Kconfig
# common/Kconfig.boot
# common/image-fit.c
# configs/UCP1020_defconfig
# configs/sifive_unmatched_defconfig
# drivers/pci/Kconfig
# include/configs/UCP1020.h
# include/configs/sifive-unmatched.h
# lib/Makefile
# scripts/config_whitelist.txt
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This option has not effect now. Drop it, using PCI instead where needed.
Signed-off-by: Simon Glass <[email protected]>
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First, we convert CONFIG_SYS_I2C_LEGACY to Kconfig. Next, as you cannot
have SYS_I2C_LEGACY and DM_I2C at the same time, introduce
CONFIG_SPL_SYS_I2C_LEGACY so that we can enable the legacy option only
in SPL. Finally, for some PowerPC cases we also need
CONFIG_TPL_SYS_I2C_LEGACY support. Convert all of the existing users to
one or more symbols.
Signed-off-by: Tom Rini <[email protected]>
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It is quite confusing that CONFIG_SYS_I2C selects the legacy I2C and
CONFIG_DM_I2C selects the current I2C. The deadline to migrate I2C is less
than a year away.
Also we want to have a CONFIG_I2C for U-Boot proper just like we have
CONFIG_SPL_I2C for SPL, so we can simplify the Makefile rules.
Rename this symbol so it is clear it is going away.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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Add driver for class of I2C controllers found on
Socionext Synquacer platform.
Signed-off-by: Jassi Brar <[email protected]>
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With recent changes this can be supported again. Add it back.
This reverts commit d85f2c4f2970d0ec2f5f075de734afd11200d153.
Signed-off-by: Simon Glass <[email protected]>
Signed-off-by: Simon Glass <[email protected]>
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At present if U-Boot proper uses driver model for I2C, then SPL has to
also. While this is desirable, it places a significant barrier to moving
to driver model in some cases. For example, with a space-constrained SPL
it may be necessary to enable CONFIG_SPL_OF_PLATDATA which involves
adjusting some drivers.
This patch introduces a separate Kconfig symbols for enabling DM_I2C and
DM_I2C_GPIO support in SPL.
This will also help to get away from dirty workarounds to
achieve non-DM I2C support for SPL, which is currently used in some
board header files like:
ifdef CONFIG_SPL_BUILD
undef CONFIG_DM_I2C
endif
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Signed-off-by: Igor Opaniuk <[email protected]>
Reviewed-by: Tom Rini <[email protected]>
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These cannot work with of-platdata since they currently need the
devicetree at runtime. Disable the emulators and the sandbox I2C driver
that needs them. We can enable these later, if needed for testing.
Switch the of_plat_parent test over to use a simple bus instead.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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Add support for the OpenCores I2C controller IP core
(See http://www.opencores.org/projects.cgi/web/i2c/overview).
This driver implementation is inspired from the Linux OpenCores
I2C driver available.
Thanks to Peter Korsgaard <[email protected]> for writing Linux
OpenCores I2C driver.
Signed-off-by: Pragnesh Patel <[email protected]>
Reviewed-by: Rick Chen <[email protected]>
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There is no devicetree with of-platdata. Update a few uclasses to allow
them to be built for sandbox_spl. Also drop the i2c-gpio from SPL to avoid
build errors, since it does not support of-platdata.
Signed-off-by: Simon Glass <[email protected]>
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Many I2C devices produce roughly the same ACPI data with just things like
the GPIO/interrupt information being different.
This can be handled by a generic driver along with some information in the
device tree.
Add a generic i2c driver for this purpose.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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Fix for the case of a U-Boot configuration with CONFIG_SPL,
CONFIG_I2C_MUX, CONFIG_I2C_MUX_PCA954x, no CONFIG_SPL_DM and no
CONFIG_SPL_I2C_MUX. Without this fix linking of pca954x fails because
dm_write_i2c does not exist because CONFIG_SPL_DM is not defined.
Signed-off-by: Kees Trommel <[email protected]>
Cc: Heiko Schocher <[email protected]>
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Changes in relation to FriendlyARM's U-Boot nanopi2-v2016.01:
- i2c/nx_i2c.c: Some adaptions mainly because of changes in
"struct udevice".
- several Bugfixes in nx_i2c.c.
- the driver has been for s5p6818 only. Code extended appropriately
in order s5p4418 is also working.
- "probe_chip" added.
- pinctrl-driver/dt is used instead of configuring the i2c I/O-pins
in the i2c-driver.
- '#ifdef CONFIG...' changed to 'if (IS_ENABLED(CONFIG...))' where
possible (and similar).
- livetree API (dev_read_...) is used instead of fdt one (fdt...).
Signed-off-by: Stefan Bosch <[email protected]>
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Add I2C controller support for Cortina Access CAxxxx SoCs
Signed-off-by: Arthur Li <[email protected]>
Signed-off-by: Alex Nemirovsky <[email protected]>
CC: Heiko Schocher <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
hs: fixed build error, add include log.h
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Add support for I2C controllers found on Octeon II/III and Octeon TX
TX2 SoC platforms.
Signed-off-by: Aaron Williams <[email protected]>
Signed-off-by: Suneel Garapati <[email protected]>
Signed-off-by: Stefan Roese <[email protected]>
Cc: Heiko Schocher <[email protected]>
Cc: Simon Glass <[email protected]>
Cc: Daniel Schwierzeck <[email protected]>
Cc: Aaron Williams <[email protected]>
Cc: Chandrakala Chavva <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Reviewed-by: Rayagonda Kokatanur <[email protected]>
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Add I2C driver support for Broadcom iproc-based socs.
Signed-off-by: Arjun Jyothi <[email protected]>
Signed-off-by: Rayagonda Kokatanur <[email protected]>
Signed-off-by: Sheetal Tigadoli <[email protected]>
Signed-off-by: Vladimir Olovyannikov <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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This is hacked into the driver at present. It seems better to have it as
a separate driver that uses the base driver. Create a new file and put
the X86 code into it.
Actually the Baytrail settings should really come from the device tree.
Note that 'has_max_speed' is added as well. This is currently always false
but since only Baytrail provides the config, it does not affect operation
for other devices.
Signed-off-by: Simon Glass <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
Reviewed-by: Bin Meng <[email protected]>
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There are no more users of the compatibility layer for i2c. Remove the
driver and all references to it.
Signed-off-by: Bartosz Golaszewski <[email protected]>
Acked-by: Heiko Schocher <[email protected]>
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This driver is replaced by drivers/i2c/i2c-cdns.c DM based driver.
Signed-off-by: Michal Simek <[email protected]>
Acked-by: Heiko Schocher <[email protected]>
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Add Xilinx AXI I2C controller driver based on the Linux i2c-xiic driver.
This driver is stripped of all the IRQ handling and uses pure polling,
yet tries to retain most of the structure of the Linux driver to make
backporting of fixes easy.
Note that the IP has a known limitation on 255 bytes read and write,
according to xilinx this is still being worked on [1].
[1] https://forums.xilinx.com/t5/Embedded-Processor-System-Design/AXI-IIC-V2-0-I2C-Master-Reading-multiple-bytes-from-I2C-slave/m-p/854419/highlight/true#M39387
Signed-off-by: Marek Vasut <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Heiko Schocher <[email protected]>
Reviewed-by: Heiko Schocher <[email protected]>
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accidentially while fixing merge errors for patch:
https://lists.denx.de/pipermail/u-boot/2018-September/342278.html
missed to add files:
MAINTAINERS
drivers/i2c/Kconfig
drivers/i2c/Makefile
add them with this patch.
Signed-off-by: Heiko Schocher <[email protected]>
Acked-by: Liviu Dudau <[email protected]>
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Last user of this driver went away in May 2017, in
commit eb5ba3aefdf0f6 ("i2c: Drop use of CONFIG_I2C_HARD")
Signed-off-by: Tuomas Tynkkynen <[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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Add driver for the RCar IIC or DVFS I2C controller. This driver is based
on the SH I2C driver, but supports DM and DT probing as well as modern
I2C framework API.
Signed-off-by: Marek Vasut <[email protected]>
Cc: Nobuhiro Iwamatsu <[email protected]>
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Add a driver for the I2C controller available on Amlogic Meson SoCs.
Signed-off-by: Beniamino Galvani <[email protected]>
Reviewed-by: Neil Armstrong <[email protected]>
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CONFIG_SYS_I2C_FTI2C010 is not enabled by anyone.
Commit 2852709676c8 ("dm: i2c: Add a note to I2C drivers which need
conversion") prompted to convert this driver to DM before June 2017,
but not converted yet.
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Heiko Schocher <[email protected]>
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This driver was used by Blackfin boards, but Blackfin support is
gone. There is no user of this driver.
Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Heiko Schocher <[email protected]>
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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]>
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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]>
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