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drivers: hierarchize drivers Kconfig menu The menuconfig for drivers are getting more and more cluttered and unreadable because too many entries are displayed in a single flat menu. Use hierarchic menu for each category. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org> [trini: Update to apply again in a few places, drop USB hunk] Signed-off-by: Tom Rini <trini@konsulko.com>
2015-07-25 17:46:26 +00:00
#
# I2C subsystem configuration
#
menu "I2C support"
i2c: add CONFIG_DM_I2C to Kconfig Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher <hs@denx.de>
2015-01-13 03:44:35 +00:00
config DM_I2C
bool "Enable Driver Model for I2C drivers"
depends on DM
help
Kconfig: i2c: fix help message related to dm i2c Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Acked-by: Simon Glass <sjg@chromium.org>
2015-03-31 16:57:17 +00:00
Enable driver model for I2C. The I2C uclass interface: probe, read,
write and speed, is implemented with the bus drivers operations,
which provide methods for bus setting and data transfer. Each chip
device (bus child) info is kept as parent platdata. The interface
i2c: remove i2c driver-model compatibility layer There are no more users of the compatibility layer for i2c. Remove the driver and all references to it. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Heiko Schocher <hs@denx.de>
2019-07-29 06:58:00 +00:00
is defined in include/i2c.h.
dm: Move CONFIG_I2C_COMPAT to Kconfig Make this option available in Kconfig and clean up the board that uses it. Note there is also an entry in exynos5-common.h but this affects multiple boards and should be dropped as part of the Samsung I2C migration to driver model. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-02-13 19:20:48 +00:00
dm: cros_ec: Convert the I2C tunnel code to use driver model The Chrome OS EC supports tunnelling through to an I2C bus on the EC. This currently uses a copy of the I2C command code and a special 'crosec' sub-command. With driver model we can define an I2C bus which tunnels through to the EC, and use the normal 'i2c' command to access it. This simplifies the code and removes some duplication. Add an I2C driver which tunnels through to the EC. Adjust the EC code to support binding child devices so that it can be set up. Adjust the existing I2C xfer function to fit driver model better. For now the old code remains to allow things to still work. It will be removed in a later patch once the new flow is fully enabled. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-08-03 14:19:23 +00:00
config I2C_CROS_EC_TUNNEL
tristate "Chrome OS EC tunnel I2C bus"
depends on CROS_EC
help
This provides an I2C bus that will tunnel i2c commands through to
the other side of the Chrome OS EC to the I2C bus connected there.
This will work whatever the interface used to talk to the EC (SPI,
I2C or LPC). Some Chromebooks use this when the hardware design
does not allow direct access to the main PMIC from the AP.
cros_ec: Support the LDO access method used by spring Add a driver to support the special LDO access used by spring. This is a custom method in the cros_ec protocol - it does not use an I2C pass-through. There are two implementation choices: 1. Write a special LDO driver which can talk across the EC. Duplicate all the logic from TPS65090 for retrying when the LDO fails to come up. 2. Write a special I2C bus driver which pretends to be a TPS65090 and transfers reads and writes using the LDO message. Either is distasteful. The latter method is chosen since it results in less code duplication and a fairly simple (30-line) implementation of the core logic. The crosec 'ldo' subcommand could be removed (since i2c md/mw will work instead) but is retained as a convenience. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-08-03 14:19:24 +00:00
config I2C_CROS_EC_LDO
bool "Provide access to LDOs on the Chrome OS EC"
depends on CROS_EC
---help---
On many Chromebooks the main PMIC is inaccessible to the AP. This is
often dealt with by using an I2C pass-through interface provided by
the EC. On some unfortunate models (e.g. Spring) the pass-through
is not available, and an LDO message is available instead. This
option enables a driver which provides very basic access to those
regulators, via the EC. We implement this as an I2C bus which
emulates just the TPS65090 messages we know about. This is done to
avoid duplicating the logic in the TPS65090 regulator driver for
enabling/disabling an LDO.
dm: cros_ec: Convert the I2C tunnel code to use driver model The Chrome OS EC supports tunnelling through to an I2C bus on the EC. This currently uses a copy of the I2C command code and a special 'crosec' sub-command. With driver model we can define an I2C bus which tunnels through to the EC, and use the normal 'i2c' command to access it. This simplifies the code and removes some duplication. Add an I2C driver which tunnels through to the EC. Adjust the EC code to support binding child devices so that it can be set up. Adjust the existing I2C xfer function to fit driver model better. For now the old code remains to allow things to still work. It will be removed in a later patch once the new flow is fully enabled. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-08-03 14:19:23 +00:00
i2c: Set default I2C bus number 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 <lukma@denx.de>
2017-03-21 11:08:25 +00:00
config I2C_SET_DEFAULT_BUS_NUM
bool "Set default I2C bus number"
depends on DM_I2C
help
Set default number of I2C bus to be accessed. This option provides
behaviour similar to old (i.e. pre DM) I2C bus driver.
config I2C_DEFAULT_BUS_NUMBER
hex "I2C default bus number"
depends on I2C_SET_DEFAULT_BUS_NUM
default 0x0
help
Number of default I2C bus to use
dm: i2c: add i2c-gpio driver This commit adds driver model support to software emulated i2c bus driver. This driver supports kernel-style device tree bindings. Fdt properties in use: - compatible - "i2c-gpio" - gpios - data and clock GPIO pin phandles - delay-us - micro seconds delay between GPIOs toggle operations, which is 1/4 of I2C speed clock period. Added: - Config: CONFIG_DM_I2C_GPIO - File: drivers/i2c/i2c-gpio.c - File: doc/device-tree-bindings/i2c/i2c-gpio.txt Driver base code is taken from: drivers/i2c/soft-i2c.c, changes: - use "i2c-gpio" naming - update comments style - move preprocesor macros into functions - add device tree support - add driver model i2c support - code cleanup, - add Kconfig entry Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com> Acked-by: Simon Glass <sjg@chromium.org> Added braces in i2c_gpio_xfer() to fix style nit: Signed-off-by: Simon Glass <sjg@chromium.org>
2015-03-31 16:57:18 +00:00
config DM_I2C_GPIO
bool "Enable Driver Model for software emulated I2C bus driver"
depends on DM_I2C && DM_GPIO
help
Enable the i2c bus driver emulation by using the GPIOs. The bus GPIO
configuration is given by the device tree. Kernel-style device tree
bindings are supported.
Binding info: doc/device-tree-bindings/i2c/i2c-gpio.txt
i2c: atmel: add i2c driver Add i2c driver. Signed-off-by: Songjun Wu <songjun.wu@atmel.com> Reviewed-by: Heiko Schocher <hs@denx.de> Acked-by: Heiko Schocher <hs@denx.de>
2016-06-20 05:22:38 +00:00
config SYS_I2C_AT91
bool "Atmel I2C driver"
depends on DM_I2C && ARCH_AT91
help
Add support for the Atmel I2C driver. A serious problem is that there
is no documented way to issue repeated START conditions for more than
two messages, as needed to support combined I2C messages. Use the
i2c-gpio driver unless your system can cope with this limitation.
Binding info: doc/device-tree-bindings/i2c/i2c-at91.txt
drivers: i2c: add brcm iproc I2C driver support Add I2C driver support for Broadcom iproc-based socs. Signed-off-by: Arjun Jyothi <arjun.jyothi@broadcom.com> Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com> Signed-off-by: Sheetal Tigadoli <sheetal.tigadoli@broadcom.com> Signed-off-by: Vladimir Olovyannikov <vladimir.olovyannikov@broadcom.com> Reviewed-by: Heiko Schocher <hs@denx.de>
2020-04-08 05:42:27 +00:00
config SYS_I2C_IPROC
bool "Broadcom I2C driver"
depends on DM_I2C
help
Broadcom I2C driver.
Add support for Broadcom I2C driver.
Say yes here to to enable the Broadco I2C driver.
dm: fsl_i2c: Enable DM for FSL I2C Signed-off-by: Mario Six <mario.six@gdsys.cc>
2016-04-25 06:31:09 +00:00
config SYS_I2C_FSL
bool "Freescale I2C bus driver"
depends on DM_I2C
help
Add support for Freescale I2C busses as used on MPC8240, MPC8245, and
MPC85xx processors.
dm: i2c: Add driver for Cadence I2C IP This is a possible drop in replacement for drivers/i2c/zynq-i2c.c Since this is cadence IP it has been renamed to cdns-i2c, to make sense with the compatible string. Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com> Reviewed-by: Heiko Schocher <hs@denx.de> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-12-28 17:47:11 +00:00
config SYS_I2C_CADENCE
tristate "Cadence I2C Controller"
xilinx: kconfig: Change Kconfig dependencies for Xilinx drivers Zynq/ZynqMP/Versal IPs should be possible to called also from Microblaze in PL and vice versa. That's why change dependencies and do not limit enabling just for some platforms. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Heiko Schocher <hs@denx.de>
2020-08-06 13:18:36 +00:00
depends on DM_I2C
dm: i2c: Add driver for Cadence I2C IP This is a possible drop in replacement for drivers/i2c/zynq-i2c.c Since this is cadence IP it has been renamed to cdns-i2c, to make sense with the compatible string. Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com> Reviewed-by: Heiko Schocher <hs@denx.de> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-12-28 17:47:11 +00:00
help
Say yes here to select Cadence I2C Host Controller. This controller is
e.g. used by Xilinx Zynq.
i2c: i2c-cortina: added CAxxxx I2C support Add I2C controller support for Cortina Access CAxxxx SoCs Signed-off-by: Arthur Li <arthur.li@cortina-access.com> Signed-off-by: Alex Nemirovsky <alex.nemirovsky@cortina-access.com> CC: Heiko Schocher <hs@denx.de> Reviewed-by: Heiko Schocher <hs@denx.de> hs: fixed build error, add include log.h
2020-06-01 19:56:31 +00:00
config SYS_I2C_CA
tristate "Cortina-Access I2C Controller"
depends on DM_I2C && CORTINA_PLATFORM
default n
help
Add support for the Cortina Access I2C host controller.
Say yes here to select Cortina-Access I2C Host Controller.
Convert CONFIG_SYS_I2C_DAVINCI to Kconfig This converts the following to Kconfig: CONFIG_SYS_I2C_DAVINCI Signed-off-by: Adam Ford <aford173@gmail.com>
2018-08-10 10:05:22 +00:00
config SYS_I2C_DAVINCI
bool "Davinci I2C Controller"
depends on (ARCH_KEYSTONE || ARCH_DAVINCI)
help
Say yes here to add support for Davinci and Keystone I2C controller
i2c: Add entry for Designware I2C driver in Kconfig This patch adds an entry for the Designware I2C driver in Kconfig. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Heiko Schocher <hs@denx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-04-28 07:47:17 +00:00
config SYS_I2C_DW
bool "Designware I2C Controller"
default n
help
Say yes here to select the Designware I2C Host Controller. This
controller is used in various SoCs, e.g. the ST SPEAr, Altera
SoCFPGA, Synopsys ARC700 and some Intel x86 SoCs.
i2c: Select SYS_I2C_DW_ENABLE_STATUS_UNSUPPORTED for SPEAr The DW I2C controller in the SPEAr SoCs doesn't support the enable status register check. This patch selects SYS_I2C_DW_ENABLE_STATUS_UNSUPPORTED for these boards. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Heiko Schocher <hs@denx.de>
2016-04-28 07:47:19 +00:00
config SYS_I2C_DW_ENABLE_STATUS_UNSUPPORTED
bool "DW I2C Enable Status Register not supported"
depends on SYS_I2C_DW && (TARGET_SPEAR300 || TARGET_SPEAR310 || \
TARGET_SPEAR320 || TARGET_SPEAR600 || TARGET_X600)
default y
help
Some versions of the Designware I2C controller do not support the
enable status register. This config option can be enabled in such
cases.
aspeed: Add I2C Driver 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 <maxims@google.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher <hs@denx.de>
2017-04-17 19:00:30 +00:00
config SYS_I2C_ASPEED
bool "Aspeed I2C Controller"
depends on DM_I2C && ARCH_ASPEED
help
Say yes here to select Aspeed I2C Host Controller. The driver
supports AST2500 and AST2400 controllers, but is very limited.
Only single master mode is supported and only byte-by-byte
synchronous reads and writes are supported, no Pool Buffers or DMA.
x86: i2c: Add a stub driver for Intel I2C/SMbus This is used on most Intel platforms. We don't have a driver for it yet, but add a stub to handle the init. For now this targets ivybridge so we may want to add a device tree binding and generalise it when other platforms are supported. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2016-01-17 23:11:44 +00:00
config SYS_I2C_INTEL
bool "Intel I2C/SMBUS driver"
depends on DM_I2C
help
Add support for the Intel SMBUS driver. So far this driver is just
a stub which perhaps some basic init. There is no implementation of
the I2C API meaning that any I2C operations will immediately fail
for now.
i2c: lpi2c: add lpi2c driver for i.MX7ULP Add lpi2c driver for i.MX7ULP. Need to enable the two options to use this driver: CONFIG_DM_I2C=y CONFIG_SYS_I2C_IMX_LPI2C=y Signed-off-by: Peng Fan <peng.fan@nxp.com> Acked-by: Heiko Schocher <hs@denx.de> Cc: Stefano Babic <sbabic@denx.de>
2017-02-24 01:54:18 +00:00
config SYS_I2C_IMX_LPI2C
bool "NXP i.MX LPI2C driver"
help
Add support for the NXP i.MX LPI2C driver.
i2c: add Amlogic Meson driver Add a driver for the I2C controller available on Amlogic Meson SoCs. Signed-off-by: Beniamino Galvani <b.galvani@gmail.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
2017-10-29 09:09:00 +00:00
config SYS_I2C_MESON
bool "Amlogic Meson I2C driver"
depends on DM_I2C && ARCH_MESON
help
i2c: meson: improve Kconfig description Expand the Kconfig description with hardware features. Signed-off-by: Beniamino Galvani <b.galvani@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de>
2017-11-26 16:40:54 +00:00
Add support for the I2C controller available in Amlogic Meson
SoCs. The controller supports programmable bus speed including
standard (100kbits/s) and fast (400kbit/s) speed and allows the
software to define a flexible format of the bit streams. It has an
internal buffer holding up to 8 bytes for transfers and supports
both 7-bit and 10-bit addresses.
i2c: add Amlogic Meson driver Add a driver for the I2C controller available on Amlogic Meson SoCs. Signed-off-by: Beniamino Galvani <b.galvani@gmail.com> Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
2017-10-29 09:09:00 +00:00
i2c: Kconfig: Add SYS_I2C_MXC entry Added kconfig for SYS_I2C_MXC driver. Cc: Stefano Babic <sbabic@denx.de> Cc: Heiko Schocher <hs@denx.de> Cc: Matteo Lisi <matteo.lisi@engicam.com> Cc: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2016-12-05 23:00:57 +00:00
config SYS_I2C_MXC
drivers: i2c: mxc: Update SYS_I2C_MXC_I2C support in Kconfig 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 <sriram.dash@nxp.com> Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2018-02-06 05:56:30 +00:00
bool "NXP MXC I2C driver"
i2c: Kconfig: Add SYS_I2C_MXC entry Added kconfig for SYS_I2C_MXC driver. Cc: Stefano Babic <sbabic@denx.de> Cc: Heiko Schocher <hs@denx.de> Cc: Matteo Lisi <matteo.lisi@engicam.com> Cc: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2016-12-05 23:00:57 +00:00
help
i2c: Kconfig: spelling fixes Signed-off-by: Chris Packham <judge.packham@gmail.com>
2019-01-13 09:13:25 +00:00
Add support for the NXP I2C driver. This supports up to four bus
channels and operating on standard mode up to 100 kbits/s and fast
mode up to 400 kbits/s.
i2c: Kconfig: Add SYS_I2C_MXC entry Added kconfig for SYS_I2C_MXC driver. Cc: Stefano Babic <sbabic@denx.de> Cc: Heiko Schocher <hs@denx.de> Cc: Matteo Lisi <matteo.lisi@engicam.com> Cc: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2016-12-05 23:00:57 +00:00
i2c: mxc: Hide kconfig based control in DM_I2C mode These options only apply when not using DM_I2C. When using device trees, the dt will enable and control the speeds of the I2C controller(s) and these configuration options have no effect. So disable them in DM_I2C mode. Otherwise they show up as decoys, and make it look like one is enabling I2C controllers and setting the speed when really it's doing nothing. However, a system using a SPL build will not use DM_I2C in the SPL, even if DM_I2C is enabled for the main u-boot. And so the SPL might use the kconfig based I2C speed controls while the main u-boot does not. Cc: Sriram Dash <sriram.dash@nxp.com> Cc: Priyanka Jain <priyanka.jain@nxp.com> Cc: Heiko Schocher <hs@denx.de> Signed-off-by: Trent Piepho <tpiepho@impinj.com>
2019-05-08 23:30:06 +00:00
# These settings are not used with DM_I2C, however SPL doesn't use
# DM_I2C even if DM_I2C is enabled, and so might use these settings even
# when main u-boot does not!
if SYS_I2C_MXC && (!DM_I2C || SPL)
drivers: i2c: mxc: Update SYS_I2C_MXC_I2C support in Kconfig 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 <sriram.dash@nxp.com> Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2018-02-06 05:56:30 +00:00
config SYS_I2C_MXC_I2C1
bool "NXP MXC I2C1"
help
Add support for NXP MXC I2C Controller 1.
Required for SoCs which have I2C MXC controller 1 eg LS1088A, LS2080A
config SYS_I2C_MXC_I2C2
bool "NXP MXC I2C2"
help
Add support for NXP MXC I2C Controller 2.
Required for SoCs which have I2C MXC controller 2 eg LS1088A, LS2080A
config SYS_I2C_MXC_I2C3
bool "NXP MXC I2C3"
help
Add support for NXP MXC I2C Controller 3.
Required for SoCs which have I2C MXC controller 3 eg LS1088A, LS2080A
config SYS_I2C_MXC_I2C4
bool "NXP MXC I2C4"
help
Add support for NXP MXC I2C Controller 4.
Required for SoCs which have I2C MXC controller 4 eg LS1088A, LS2080A
drivers: i2c: mxc: Update support to 8 I2C controllers 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 <sriram.dash@nxp.com> Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2018-02-06 05:56:31 +00:00
config SYS_I2C_MXC_I2C5
bool "NXP MXC I2C5"
help
Add support for NXP MXC I2C Controller 5.
Required for SoCs which have I2C MXC controller 5 eg LX2160A
config SYS_I2C_MXC_I2C6
bool "NXP MXC I2C6"
help
Add support for NXP MXC I2C Controller 6.
Required for SoCs which have I2C MXC controller 6 eg LX2160A
config SYS_I2C_MXC_I2C7
bool "NXP MXC I2C7"
help
Add support for NXP MXC I2C Controller 7.
Required for SoCs which have I2C MXC controller 7 eg LX2160A
config SYS_I2C_MXC_I2C8
bool "NXP MXC I2C8"
help
Add support for NXP MXC I2C Controller 8.
Required for SoCs which have I2C MXC controller 8 eg LX2160A
drivers: i2c: mxc: Update SYS_I2C_MXC_I2C support in Kconfig 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 <sriram.dash@nxp.com> Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2018-02-06 05:56:30 +00:00
endif
if SYS_I2C_MXC_I2C1
config SYS_MXC_I2C1_SPEED
int "I2C Channel 1 speed"
default 40000000 if TARGET_LS2080A_SIMU || TARGET_LS2080A_EMU
default 100000
help
MXC I2C Channel 1 speed
config SYS_MXC_I2C1_SLAVE
int "I2C1 Slave"
default 0
help
MXC I2C1 Slave
endif
if SYS_I2C_MXC_I2C2
config SYS_MXC_I2C2_SPEED
int "I2C Channel 2 speed"
default 40000000 if TARGET_LS2080A_SIMU || TARGET_LS2080A_EMU
default 100000
help
MXC I2C Channel 2 speed
config SYS_MXC_I2C2_SLAVE
int "I2C2 Slave"
default 0
help
MXC I2C2 Slave
endif
if SYS_I2C_MXC_I2C3
config SYS_MXC_I2C3_SPEED
int "I2C Channel 3 speed"
default 100000
help
MXC I2C Channel 3 speed
config SYS_MXC_I2C3_SLAVE
int "I2C3 Slave"
default 0
help
MXC I2C3 Slave
endif
if SYS_I2C_MXC_I2C4
config SYS_MXC_I2C4_SPEED
int "I2C Channel 4 speed"
default 100000
help
MXC I2C Channel 4 speed
config SYS_MXC_I2C4_SLAVE
int "I2C4 Slave"
default 0
help
MXC I2C4 Slave
endif
drivers: i2c: mxc: Update support to 8 I2C controllers 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 <sriram.dash@nxp.com> Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
2018-02-06 05:56:31 +00:00
if SYS_I2C_MXC_I2C5
config SYS_MXC_I2C5_SPEED
int "I2C Channel 5 speed"
default 100000
help
MXC I2C Channel 5 speed
config SYS_MXC_I2C5_SLAVE
int "I2C5 Slave"
default 0
help
MXC I2C5 Slave
endif
if SYS_I2C_MXC_I2C6
config SYS_MXC_I2C6_SPEED
int "I2C Channel 6 speed"
default 100000
help
MXC I2C Channel 6 speed
config SYS_MXC_I2C6_SLAVE
int "I2C6 Slave"
default 0
help
MXC I2C6 Slave
endif
if SYS_I2C_MXC_I2C7
config SYS_MXC_I2C7_SPEED
int "I2C Channel 7 speed"
default 100000
help
MXC I2C Channel 7 speed
config SYS_MXC_I2C7_SLAVE
int "I2C7 Slave"
default 0
help
MXC I2C7 Slave
endif
if SYS_I2C_MXC_I2C8
config SYS_MXC_I2C8_SPEED
int "I2C Channel 8 speed"
default 100000
help
MXC I2C Channel 8 speed
config SYS_MXC_I2C8_SLAVE
int "I2C8 Slave"
default 0
help
MXC I2C8 Slave
endif
i2c: add nexell driver 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 <stefan_b@posteo.net>
2020-07-10 17:07:28 +00:00
config SYS_I2C_NEXELL
bool "Nexell I2C driver"
depends on DM_I2C
help
Add support for the Nexell I2C driver. This is used with various
Nexell parts such as S5Pxx18 series SoCs. All chips
have several I2C ports and all are provided, controlled by the
device tree.
Convert CONFIG_SYS_I2C_OMAP24XX to Kconfig This converts the following to Kconfig: CONFIG_SYS_I2C_OMAP24XX Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Heiko Schocher <hs@denx.de>
2017-08-07 18:11:34 +00:00
config SYS_I2C_OMAP24XX
bool "TI OMAP2+ I2C driver"
i2c: omap24xx_i2c: Adapt driver to support K3 devices K3 devices have I2C IP that is same as OMAP2+ family. Allow driver to be compiled for ARCH_K3. Signed-off-by: Vignesh R <vigneshr@ti.com> Signed-off-by: Andreas Dannenberg <dannenberg@ti.com> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
2019-06-04 23:08:11 +00:00
depends on ARCH_OMAP2PLUS || ARCH_K3
Convert CONFIG_SYS_I2C_OMAP24XX to Kconfig This converts the following to Kconfig: CONFIG_SYS_I2C_OMAP24XX Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Heiko Schocher <hs@denx.de>
2017-08-07 18:11:34 +00:00
help
Add support for the OMAP2+ I2C driver.
Convert CONFIG_SYS_OMAP24_I2C_SLAVE et al to Kconfig This converts the following to Kconfig: CONFIG_SYS_OMAP24_I2C_SLAVE CONFIG_SYS_OMAP24_I2C_SPEED Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Paul Kocialkowski <contact@paulk.fr>
2018-01-24 21:21:21 +00:00
if SYS_I2C_OMAP24XX
config SYS_OMAP24_I2C_SLAVE
int "I2C Slave addr channel 0"
default 1
help
OMAP24xx I2C Slave address channel 0
config SYS_OMAP24_I2C_SPEED
int "I2C Slave channel 0 speed"
default 100000
help
OMAP24xx Slave speed channel 0
endif
i2c: rcar_i2c: Add DM and DT capable I2C driver Add derivative of the rcar_i2c driver which is capable of probing itself from DM and uses DT. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Heiko Schocher <hs@denx.de> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2018-04-21 16:57:28 +00:00
config SYS_I2C_RCAR_I2C
bool "Renesas RCar I2C driver"
depends on (RCAR_GEN3 || RCAR_GEN2) && DM_I2C
help
Support for Renesas RCar I2C controller.
i2c: rcar_iic: Add RCar IIC driver 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 <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2017-11-28 07:02:27 +00:00
config SYS_I2C_RCAR_IIC
bool "Renesas RCar Gen3 IIC driver"
i2c: rcar_iic: Allow IIC on RCar Gen2 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>
2018-02-17 01:17:40 +00:00
depends on (RCAR_GEN3 || RCAR_GEN2) && DM_I2C
i2c: rcar_iic: Add RCar IIC driver 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 <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2017-11-28 07:02:27 +00:00
help
Support for Renesas RCar Gen3 IIC controller.
rockchip: Add I2C driver Add an I2C driver for the Rockchip RK3288, using driver model. It should work for other Rockchip SoCs also. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-08-30 22:55:39 +00:00
config SYS_I2C_ROCKCHIP
bool "Rockchip I2C driver"
depends on DM_I2C
help
Add support for the Rockchip I2C driver. This is used with various
Rockchip parts such as RK3126, RK3128, RK3036 and RK3288. All chips
i2c: Kconfig: spelling fixes Signed-off-by: Chris Packham <judge.packham@gmail.com>
2019-01-13 09:13:25 +00:00
have several I2C ports and all are provided, controlled by the
rockchip: Add I2C driver Add an I2C driver for the Rockchip RK3288, using driver model. It should work for other Rockchip SoCs also. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-08-30 22:55:39 +00:00
device tree.
sandbox: Move CONFIG_SYS_I2C_SANDBOX to Kconfig Move this over to Kconfig and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher<hs@denx.de>
2015-03-06 20:19:04 +00:00
config SYS_I2C_SANDBOX
bool "Sandbox I2C driver"
depends on SANDBOX && DM_I2C
help
Enable I2C support for sandbox. This is an emulation of a real I2C
bus. Devices can be attached to the bus using the device tree
i2c: sandbox: remove code snippet from Kconfig help With the Kconfig re-sync with Linux 4.10, characters such as '}', ';' in Kconfig help message cause warnings: $ make defconfig *** Default configuration is based on 'sandbox_defconfig' drivers/i2c/Kconfig:132:warning: ignoring unsupported character '}' drivers/i2c/Kconfig:132:warning: ignoring unsupported character ';' Drop the Device Tree fragment from the help. Acked-by: Heiko Schocher <hs@denx.de> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-02-11 03:39:55 +00:00
which specifies the driver to use. See sandbox.dts as an example.
sandbox: Move CONFIG_SYS_I2C_SANDBOX to Kconfig Move this over to Kconfig and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher<hs@denx.de>
2015-03-06 20:19:04 +00:00
i2c: octeon_i2c: Add I2C controller driver for Octeon Add support for I2C controllers found on Octeon II/III and Octeon TX TX2 SoC platforms. Signed-off-by: Aaron Williams <awilliams@marvell.com> Signed-off-by: Suneel Garapati <sgarapati@marvell.com> Signed-off-by: Stefan Roese <sr@denx.de> Cc: Heiko Schocher <hs@denx.de> Cc: Simon Glass <sjg@chromium.org> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Cc: Aaron Williams <awilliams@marvell.com> Cc: Chandrakala Chavva <cchavva@marvell.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
2020-05-26 12:13:07 +00:00
config SYS_I2C_OCTEON
bool "Octeon II/III/TX/TX2 I2C driver"
depends on (ARCH_OCTEON || ARCH_OCTEONTX || ARCH_OCTEONTX2) && DM_I2C
default y
help
Add support for the Marvell Octeon I2C driver. This is used with
various Octeon parts such as Octeon II/III and OcteonTX/TX2. All
chips have several I2C ports and all are provided, controlled by
the device tree.
i2c: Kconfig: Add SYS_I2C_S3C24X0 entry Adding Kconfig for SYS_I2C_S3C24X0. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
2017-01-09 05:47:52 +00:00
config SYS_I2C_S3C24X0
bool "Samsung I2C driver"
depends on ARCH_EXYNOS4 && DM_I2C
help
Support for Samsung I2C controller as Samsung SoCs.
sandbox: Move CONFIG_SYS_I2C_SANDBOX to Kconfig Move this over to Kconfig and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher<hs@denx.de>
2015-03-06 20:19:04 +00:00
i2c: add i2c driver for stm32 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 <christophe.kerello@st.com> Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-08-09 12:45:27 +00:00
config SYS_I2C_STM32F7
bool "STMicroelectronics STM32F7 I2C support"
arm: stm32: add new architecture for STM32MP family - 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 <patrick.delaunay@st.com>
2018-03-12 09:46:10 +00:00
depends on (STM32F7 || STM32H7 || ARCH_STM32MP) && DM_I2C
i2c: add i2c driver for stm32 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 <christophe.kerello@st.com> Signed-off-by: Patrice Chotard <patrice.chotard@st.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2017-08-09 12:45:27 +00:00
help
Enable this option to add support for STM32 I2C controller
introduced with STM32F7/H7 SoCs. This I2C controller supports :
_ 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
Kconfig: tegra: Migrate SYS_I2C_TEGRA Migrate SYS_I2C_TEGRA from headers to Kconfig Signed-off-by: Peter Robinson <pbrobinson@gmail.com> Cc: Tom Warren <twarren@nvidia.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Heiko Schocher <hs@denx.de> Cc: Marcel Ziswiler <marcel.ziswiler@toradex.com> Cc: Peter.Chubb@data61.csiro.au Cc: Lucas Stach <dev@lynxeye.de> Cc: Stefan Agner <stefan.agner@toradex.com> Cc: Alban Bedel <alban.bedel@avionic-design.de> Cc: Allen Martin <amartin@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
2019-02-20 12:17:26 +00:00
config SYS_I2C_TEGRA
bool "NVIDIA Tegra internal I2C controller"
rename symbol: CONFIG_TEGRA -> CONFIG_ARCH_TEGRA Have this symbol follow the pattern of all other such symbols. Signed-off-by: Trevor Woerner <twoerner@gmail.com>
2020-05-06 12:02:41 +00:00
depends on ARCH_TEGRA
Kconfig: tegra: Migrate SYS_I2C_TEGRA Migrate SYS_I2C_TEGRA from headers to Kconfig Signed-off-by: Peter Robinson <pbrobinson@gmail.com> Cc: Tom Warren <twarren@nvidia.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Heiko Schocher <hs@denx.de> Cc: Marcel Ziswiler <marcel.ziswiler@toradex.com> Cc: Peter.Chubb@data61.csiro.au Cc: Lucas Stach <dev@lynxeye.de> Cc: Stefan Agner <stefan.agner@toradex.com> Cc: Alban Bedel <alban.bedel@avionic-design.de> Cc: Allen Martin <amartin@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
2019-02-20 12:17:26 +00:00
help
Support for NVIDIA I2C controller available in Tegra SoCs.
i2c: UniPhier: add driver for UniPhier i2c controller This commit adds on-chip I2C driver used on some old Panasonic UniPhier SoCs. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher <hs@denx.de>
2015-01-13 03:44:36 +00:00
config SYS_I2C_UNIPHIER
bool "UniPhier I2C driver"
depends on ARCH_UNIPHIER && DM_I2C
default y
help
ARM: UniPhier: update the vendor name of UniPhier in Kconfig The business for UniPhier Soc family has been transferred from Panasonic Corporation to Socionext Inc. Update the SoC select menu in Kconfig. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-05-29 08:30:01 +00:00
Support for UniPhier I2C controller driver. This I2C controller
is used on PH1-LD4, PH1-sLD8 or older UniPhier SoCs.
i2c: UniPhier: add driver for UniPhier FIFO-builtin i2c controller This commit adds on-chip I2C driver used on newer SoCs of Panasonic UniPhier platform. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher <hs@denx.de>
2015-01-13 03:44:37 +00:00
config SYS_I2C_UNIPHIER_F
bool "UniPhier FIFO-builtin I2C driver"
depends on ARCH_UNIPHIER && DM_I2C
default y
help
ARM: UniPhier: update the vendor name of UniPhier in Kconfig The business for UniPhier Soc family has been transferred from Panasonic Corporation to Socionext Inc. Update the SoC select menu in Kconfig. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-05-29 08:30:01 +00:00
Support for UniPhier FIFO-builtin I2C controller driver.
i2c: UniPhier: add driver for UniPhier FIFO-builtin i2c controller This commit adds on-chip I2C driver used on newer SoCs of Panasonic UniPhier platform. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Heiko Schocher <hs@denx.de>
2015-01-13 03:44:37 +00:00
This I2C controller is used on PH1-Pro4 or newer UniPhier SoCs.
dm: i2c: Add support for multiplexed I2C buses Add a new I2C_MUX uclass. Devices in this class can multiplex between several I2C buses, selecting them one at a time for use by the system. The multiplexing mechanism is left to the driver to decide - it may be controlled by GPIOs, for example. The uclass supports only two methods: select() and deselect(). The current mux state is expected to be stored in the mux itself since it is the only thing that knows how to make things work. The mux can record the current state and then avoid switching unless it is necessary. So select() can be skipped if the mux is already in the correct state. Also deselect() can be made a nop if required. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-08-03 14:19:21 +00:00
i2c: fix: Add support for the Arm's Versatile Express I2C controller 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 <hs@denx.de> Acked-by: Liviu Dudau <liviu.dudau@foss.arm.com>
2018-10-11 05:26:33 +00:00
config SYS_I2C_VERSATILE
bool "Arm Ltd Versatile I2C bus driver"
depends on DM_I2C && (TARGET_VEXPRESS_CA15_TC2 || TARGET_VEXPRESS64_JUNO)
help
Add support for the Arm Ltd Versatile Express I2C driver. The I2C host
controller is present in the development boards manufactured by Arm Ltd.
i2c: mvtwsi: Add compatibility to DM This patch adds the necessary functions and Kconfig entry to make the MVTWSI I2C driver compatible with the driver model. A possible device tree entry might look like this: i2c@11100 { compatible = "marvell,mv64xxx-i2c"; reg = <0x11000 0x20>; clock-frequency = <100000>; u-boot,i2c-slave-addr = <0x0>; }; Signed-off-by: Mario Six <mario.six@gdsys.cc> Reviewed-by: Stefan Roese <sr@denx.de>
2016-07-21 09:57:10 +00:00
config SYS_I2C_MVTWSI
bool "Marvell I2C driver"
depends on DM_I2C
help
Support for Marvell I2C controllers as used on the orion5x and
kirkwood SoC families.
i2c: add Tegra186 BPMP driver On Tegra186, some I2C controllers are directly controlled by the main CPU, whereas others are controlled by the BPMP, and can only be accessed by the main CPU via IPC requests to the BPMP. This driver covers the latter case. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Heiko Schocher <hs@denx.de> Signed-off-by: Tom Warren <twarren@nvidia.com>
2016-08-08 17:28:27 +00:00
config TEGRA186_BPMP_I2C
bool "Enable Tegra186 BPMP-based I2C driver"
depends on TEGRA186_BPMP
help
Support for Tegra I2C controllers managed by the BPMP (Boot and
Power Management Processor). On Tegra186, some I2C controllers are
directly controlled by the main CPU, whereas others are controlled
by the BPMP, and can only be accessed by the main CPU via IPC
requests to the BPMP. This driver covers the latter case.
Convert CONFIG_SYS_I2C_BUS_MAX to Kconfig This converts the following to Kconfig: CONFIG_SYS_I2C_BUS_MAX Signed-off-by: Adam Ford <aford173@gmail.com> Reviewed-by: Heiko Schocher <hs@denx.de> [trini: Fix AM43XX drop AM44XX] Signed-off-by: Tom Rini <trini@konsulko.com>
2017-08-11 11:39:34 +00:00
config SYS_I2C_BUS_MAX
int "Max I2C busses"
depends on ARCH_KEYSTONE || ARCH_OMAP2PLUS || ARCH_SOCFPGA
default 2 if TI816X
default 3 if OMAP34XX || AM33XX || AM43XX || ARCH_KEYSTONE
default 4 if ARCH_SOCFPGA || OMAP44XX || TI814X
default 5 if OMAP54XX
help
Define the maximum number of available I2C buses.
i2c: xiic: Add Xilinx AXI I2C driver 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 <marex@denx.de> Cc: Michal Simek <monstr@monstr.eu> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Heiko Schocher <hs@denx.de> Reviewed-by: Heiko Schocher <hs@denx.de>
2018-12-19 11:26:27 +00:00
config SYS_I2C_XILINX_XIIC
bool "Xilinx AXI I2C driver"
depends on DM_I2C
help
Support for Xilinx AXI I2C controller.
i2c: ihs_i2c: Make DM compatible 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>
2018-01-15 10:08:11 +00:00
config SYS_I2C_IHS
bool "gdsys IHS I2C driver"
depends on DM_I2C
help
Support for gdsys IHS I2C driver on FPGA bus.
dm: i2c: Add support for multiplexed I2C buses Add a new I2C_MUX uclass. Devices in this class can multiplex between several I2C buses, selecting them one at a time for use by the system. The multiplexing mechanism is left to the driver to decide - it may be controlled by GPIOs, for example. The uclass supports only two methods: select() and deselect(). The current mux state is expected to be stored in the mux itself since it is the only thing that knows how to make things work. The mux can record the current state and then avoid switching unless it is necessary. So select() can be skipped if the mux is already in the correct state. Also deselect() can be made a nop if required. Signed-off-by: Simon Glass <sjg@chromium.org>
2015-08-03 14:19:21 +00:00
source "drivers/i2c/muxes/Kconfig"
drivers: hierarchize drivers Kconfig menu The menuconfig for drivers are getting more and more cluttered and unreadable because too many entries are displayed in a single flat menu. Use hierarchic menu for each category. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org> [trini: Update to apply again in a few places, drop USB hunk] Signed-off-by: Tom Rini <trini@konsulko.com>
2015-07-25 17:46:26 +00:00
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