| # |
| # I2C subsystem configuration |
| # |
| |
| menuconfig I2C |
| bool "I2C support" |
| default y |
| help |
| Note: |
| This is a stand-in for an option to enable I2C support. In fact this |
| simply enables building of the I2C directory for U-Boot. The actual |
| I2C feature is enabled by DM_I2C (for driver model) and |
| the #define CONFIG_SYS_I2C_LEGACY (for the legacy I2C stack). |
| |
| So at present there is no need to ever disable this option. |
| |
| Eventually it will: |
| |
| Enable support for the I2C (Inter-Integrated Circuit) bus in U-Boot. |
| I2C works with a clock and data line which can be driven by a |
| one or more masters or slaves. It is a fairly complex bus but is |
| widely used as it only needs two lines for communication. Speeds of |
| 400kbps are typical but up to 3.4Mbps is supported by some |
| hardware. Enable this option to build the drivers in drivers/i2c as |
| part of a U-Boot build. |
| |
| if I2C |
| |
| config DM_I2C |
| bool "Enable Driver Model for I2C drivers" |
| depends on DM |
| help |
| 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 plat. The interface |
| is defined in include/i2c.h. |
| |
| config SPL_DM_I2C |
| bool "Enable Driver Model for I2C drivers in SPL" |
| depends on SPL_DM && DM_I2C |
| default y |
| help |
| 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 |
| is defined in include/i2c.h. |
| |
| config SYS_I2C_LEGACY |
| bool "Enable legacy I2C subsystem and drivers" |
| depends on !DM_I2C |
| help |
| Enable the legacy I2C subsystem and drivers. While this is |
| deprecated in U-Boot itself, this can be useful in some situations |
| in SPL or TPL. |
| |
| config SPL_SYS_I2C_LEGACY |
| bool "Enable legacy I2C subsystem and drivers in SPL" |
| depends on SUPPORT_SPL && !SPL_DM_I2C |
| help |
| Enable the legacy I2C subsystem and drivers in SPL. This is useful |
| in some size constrained situations. |
| |
| config TPL_SYS_I2C_LEGACY |
| bool "Enable legacy I2C subsystem and drivers in TPL" |
| depends on SUPPORT_TPL && !SPL_DM_I2C |
| help |
| Enable the legacy I2C subsystem and drivers in TPL. This is useful |
| in some size constrained situations. |
| |
| config SYS_I2C_EARLY_INIT |
| bool "Enable legacy I2C subsystem early in boot" |
| depends on BOARD_EARLY_INIT_F && SPL_SYS_I2C_LEGACY && SYS_I2C_MXC |
| help |
| Add the function prototype for i2c_early_init_f which is called in |
| board_early_init_f. |
| |
| 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. |
| |
| 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. |
| |
| 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 |
| |
| 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 |
| |
| config SPL_DM_I2C_GPIO |
| bool "Enable Driver Model for software emulated I2C bus driver in SPL" |
| depends on SPL_DM && DM_I2C_GPIO && SPL_DM_GPIO && SPL_GPIO |
| default y |
| 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 |
| |
| 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 |
| |
| 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. |
| |
| config SYS_I2C_FSL |
| bool "Freescale I2C bus driver" |
| help |
| Add support for Freescale I2C busses as used on MPC8240, MPC8245, and |
| MPC85xx processors. |
| |
| if SYS_I2C_FSL && (SYS_I2C_LEGACY || SPL_SYS_I2C_LEGACY) |
| config SYS_FSL_I2C_OFFSET |
| hex "Offset from the IMMR of the address of the first I2C controller" |
| |
| config SYS_FSL_HAS_I2C2_OFFSET |
| bool "Support a second I2C controller" |
| |
| config SYS_FSL_I2C2_OFFSET |
| hex "Offset from the IMMR of the address of the second I2C controller" |
| depends on SYS_FSL_HAS_I2C2_OFFSET |
| |
| config SYS_FSL_HAS_I2C3_OFFSET |
| bool "Support a third I2C controller" |
| |
| config SYS_FSL_I2C3_OFFSET |
| hex "Offset from the IMMR of the address of the third I2C controller" |
| depends on SYS_FSL_HAS_I2C3_OFFSET |
| |
| config SYS_FSL_HAS_I2C4_OFFSET |
| bool "Support a fourth I2C controller" |
| |
| config SYS_FSL_I2C4_OFFSET |
| hex "Offset from the IMMR of the address of the fourth I2C controller" |
| depends on SYS_FSL_HAS_I2C4_OFFSET |
| endif |
| |
| config SYS_I2C_CADENCE |
| tristate "Cadence I2C Controller" |
| depends on DM_I2C |
| help |
| Say yes here to select Cadence I2C Host Controller. This controller is |
| e.g. used by Xilinx Zynq. |
| |
| config SYS_I2C_CA |
| tristate "Cortina-Access I2C Controller" |
| depends on DM_I2C && CORTINA_PLATFORM |
| help |
| Add support for the Cortina Access I2C host controller. |
| Say yes here to select Cortina-Access I2C Host Controller. |
| |
| 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 |
| |
| config SYS_I2C_DW |
| bool "Designware I2C Controller" |
| 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. |
| |
| 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. |
| |
| 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. |
| |
| config SYS_I2C_IMX_LPI2C |
| bool "NXP i.MX LPI2C driver" |
| help |
| Add support for the NXP i.MX LPI2C driver. |
| |
| config SYS_I2C_LPC32XX |
| bool "LPC32XX I2C driver" |
| depends on ARCH_LPC32XX |
| help |
| Enable support for the LPC32xx I2C driver. |
| |
| config SYS_I2C_MESON |
| bool "Amlogic Meson I2C driver" |
| depends on DM_I2C && ARCH_MESON |
| help |
| 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. |
| |
| config SYS_I2C_MICROCHIP |
| bool "Microchip I2C driver" |
| help |
| Add support for the Microchip I2C driver. This is operating on |
| standard mode up to 100 kbits/s and fast mode up to 400 kbits/s. |
| |
| config SYS_I2C_MXC |
| bool "NXP MXC I2C driver" |
| help |
| 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. |
| |
| if SYS_I2C_MXC && (SYS_I2C_LEGACY || SPL_SYS_I2C_LEGACY) |
| 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 |
| |
| 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 |
| endif |
| |
| if SYS_I2C_MXC_I2C1 |
| config SYS_MXC_I2C1_SPEED |
| int "I2C Channel 1 speed" |
| default 40000000 if TARGET_LS2080A_EMU |
| default 100000 |
| help |
| MXC I2C Channel 1 speed |
| |
| config SYS_MXC_I2C1_SLAVE |
| hex "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_EMU |
| default 100000 |
| help |
| MXC I2C Channel 2 speed |
| |
| config SYS_MXC_I2C2_SLAVE |
| hex "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 |
| hex "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 |
| hex "I2C4 Slave" |
| default 0 |
| help |
| MXC I2C4 Slave |
| endif |
| |
| 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 |
| hex "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 |
| hex "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 |
| hex "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 |
| hex "I2C8 Slave" |
| default 0 |
| help |
| MXC I2C8 Slave |
| endif |
| |
| 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. |
| |
| config SYS_I2C_OCORES |
| bool "ocores I2C driver" |
| depends on DM_I2C |
| help |
| Add support for ocores I2C controller. For details see |
| https://opencores.org/projects/i2c |
| |
| config SYS_I2C_OMAP24XX |
| bool "TI OMAP2+ I2C driver" |
| depends on ARCH_OMAP2PLUS || ARCH_K3 |
| help |
| Add support for the OMAP2+ I2C driver. |
| |
| 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. |
| |
| config SYS_I2C_RCAR_IIC |
| bool "Renesas RCar Gen3 IIC driver" |
| depends on (RCAR_GEN3 || RCAR_GEN2) && DM_I2C |
| help |
| Support for Renesas RCar Gen3 IIC controller. |
| |
| 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 |
| have several I2C ports and all are provided, controlled by the |
| device tree. |
| |
| 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 |
| which specifies the driver to use. See sandbox.dts as an example. |
| |
| config SYS_I2C_SH |
| bool "Legacy SuperH I2C interface" |
| depends on ARCH_RMOBILE && SYS_I2C_LEGACY |
| help |
| Enable the legacy SuperH I2C interface. |
| |
| if SYS_I2C_SH |
| config SYS_I2C_SH_NUM_CONTROLLERS |
| int |
| default 5 |
| |
| config SYS_I2C_SH_BASE0 |
| hex |
| default 0xE6820000 |
| |
| config SYS_I2C_SH_BASE1 |
| hex |
| default 0xE6822000 |
| |
| config SYS_I2C_SH_BASE2 |
| hex |
| default 0xE6824000 |
| |
| config SYS_I2C_SH_BASE3 |
| hex |
| default 0xE6826000 |
| |
| config SYS_I2C_SH_BASE4 |
| hex |
| default 0xE6828000 |
| |
| config SH_I2C_8BIT |
| bool |
| default y |
| |
| config SH_I2C_DATA_HIGH |
| int |
| default 4 |
| |
| config SH_I2C_DATA_LOW |
| int |
| default 5 |
| |
| config SH_I2C_CLOCK |
| int |
| default 104000000 |
| endif |
| |
| config SYS_I2C_SOFT |
| bool "Legacy software I2C interface" |
| help |
| Enable the legacy software defined I2C interface |
| |
| config SYS_I2C_SOFT_SPEED |
| int "Software I2C bus speed" |
| depends on SYS_I2C_SOFT |
| default 100000 |
| help |
| Speed of the software I2C bus |
| |
| config SYS_I2C_SOFT_SLAVE |
| hex "Software I2C slave address" |
| depends on SYS_I2C_SOFT |
| default 0xfe |
| help |
| Slave address of the software I2C bus |
| |
| 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. |
| |
| config SYS_I2C_S3C24X0 |
| bool "Samsung I2C driver" |
| depends on (ARCH_EXYNOS4 || ARCH_EXYNOS5) && DM_I2C |
| help |
| Support for Samsung I2C controller as Samsung SoCs. |
| |
| config SYS_I2C_STM32F7 |
| bool "STMicroelectronics STM32F7 I2C support" |
| depends on (STM32F7 || STM32H7 || ARCH_STM32MP) && DM_I2C |
| 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 |
| |
| config SYS_I2C_SUN6I_P2WI |
| bool "Allwinner sun6i P2WI controller" |
| depends on ARCH_SUNXI |
| help |
| Support for the P2WI (Push/Pull 2 Wire Interface) controller embedded |
| in the Allwinner A31 and A31s SOCs. This interface is used to connect |
| to specific devices like the X-Powers AXP221 PMIC. |
| |
| config SYS_I2C_SUN8I_RSB |
| bool "Allwinner sun8i Reduced Serial Bus controller" |
| depends on ARCH_SUNXI |
| help |
| Support for Allwinner's Reduced Serial Bus (RSB) controller. This |
| controller is responsible for communicating with various RSB based |
| devices, such as X-Powers AXPxxx PMICs and AC100/AC200 CODEC ICs. |
| |
| config SYS_I2C_SYNQUACER |
| bool "Socionext SynQuacer I2C controller" |
| depends on ARCH_SYNQUACER && DM_I2C |
| help |
| Support for Socionext Synquacer I2C controller. This I2C controller |
| will be used for RTC and LS-connector on DeveloperBox. |
| |
| config SYS_I2C_TEGRA |
| bool "NVIDIA Tegra internal I2C controller" |
| depends on ARCH_TEGRA |
| help |
| Support for NVIDIA I2C controller available in Tegra SoCs. |
| |
| config SYS_I2C_UNIPHIER |
| bool "UniPhier I2C driver" |
| depends on ARCH_UNIPHIER && DM_I2C |
| default y |
| help |
| Support for UniPhier I2C controller driver. This I2C controller |
| is used on PH1-LD4, PH1-sLD8 or older UniPhier SoCs. |
| |
| config SYS_I2C_UNIPHIER_F |
| bool "UniPhier FIFO-builtin I2C driver" |
| depends on ARCH_UNIPHIER && DM_I2C |
| default y |
| help |
| Support for UniPhier FIFO-builtin I2C controller driver. |
| This I2C controller is used on PH1-Pro4 or newer UniPhier SoCs. |
| |
| config SYS_I2C_VERSATILE |
| bool "Arm Ltd Versatile I2C bus driver" |
| depends on DM_I2C && 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. |
| |
| config SYS_I2C_MV |
| bool "Marvell PXA (Armada 3720) I2C driver" |
| help |
| Support for PXA based I2C controller used on Armada 3720 SoC. |
| In Linux, this driver is called i2c-pxa. |
| |
| config SYS_I2C_MVTWSI |
| bool "Marvell I2C driver" |
| help |
| Support for Marvell I2C controllers as used on the orion5x and |
| kirkwood SoC families. |
| |
| 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. |
| |
| config SYS_I2C_SLAVE |
| hex "I2C Slave address channel (all buses)" |
| depends on SYS_I2C_LEGACY || SPL_SYS_I2C_LEGACY || TPL_SYS_I2C_LEGACY |
| default 0xfe |
| help |
| I2C Slave address channel 0 for all buses in the legacy drivers. |
| Many boards/controllers/drivers don't support an I2C slave |
| interface so provide a default slave address for them for use in |
| common code. A real value for CONFIG_SYS_I2C_SLAVE should be |
| defined for any board which does support a slave interface and |
| this default used otherwise. |
| |
| config SYS_I2C_SPEED |
| int "I2C Slave channel 0 speed (all buses)" |
| depends on SYS_I2C_LEGACY || SPL_SYS_I2C_LEGACY || TPL_SYS_I2C_LEGACY |
| default 100000 |
| help |
| I2C Slave speed channel 0 for all buses in the legacy drivers. |
| |
| 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. |
| |
| config SYS_I2C_XILINX_XIIC |
| bool "Xilinx AXI I2C driver" |
| depends on DM_I2C |
| help |
| Support for Xilinx AXI I2C controller. |
| |
| config SYS_I2C_IHS |
| bool "gdsys IHS I2C driver" |
| depends on DM_I2C |
| help |
| Support for gdsys IHS I2C driver on FPGA bus. |
| |
| source "drivers/i2c/muxes/Kconfig" |
| |
| endif |
