Searched hist:"78 b3ea9c917074b0a61eca94106a09ffbaa3e904" (Results 1 – 5 of 5) sorted by relevance
| /optee_os/core/include/drivers/ |
| H A D | imx_i2c.h | 78b3ea9c917074b0a61eca94106a09ffbaa3e904 Fri May 29 16:14:31 UTC 2020 Jorge Ramirez-Ortiz <jorge@foundries.io> drivers: imx_i2c: add I2C support
This driver provides native access to the I2C bus on iMX.
The driver will not query the clock hierarchy - to find the base clock
rate - because it overcomplicates the deliverable for not much added
value (this can be done at a later time if required).
The U-Boot and Linux GPL code was initially used as a reference;
however due to the simpler OP-TEE use case requirements, the code was
later re-written following the reference manual [1].
This driver will not access addresses within a I2C slave map.
This driver must not be used while the Linux kernel is running unless
the following is guaranteed:
- that the I2C bus will not be suspended.
- that there will not be collisions with other bus masters.
Without those guarantees, please use a trampoline driver to route the
I2C requests to Linux.
Tested on imx8mm-lpddr4.
[1] i.MX 8M Mini Applications Processor Reference Manual
Document Number: IMX8MMMRM
Rev.2 08/2019
Tested-by: Jorge Ramirez-Ortiz <jorge@foundries.io> (imx8mm)
Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Acked-by: Jerome Forissier <jerome@forissier.org>
|
| /optee_os/core/arch/arm/plat-imx/registers/ |
| H A D | imx8m-crm.h | 78b3ea9c917074b0a61eca94106a09ffbaa3e904 Fri May 29 16:14:31 UTC 2020 Jorge Ramirez-Ortiz <jorge@foundries.io> drivers: imx_i2c: add I2C support
This driver provides native access to the I2C bus on iMX.
The driver will not query the clock hierarchy - to find the base clock
rate - because it overcomplicates the deliverable for not much added
value (this can be done at a later time if required).
The U-Boot and Linux GPL code was initially used as a reference;
however due to the simpler OP-TEE use case requirements, the code was
later re-written following the reference manual [1].
This driver will not access addresses within a I2C slave map.
This driver must not be used while the Linux kernel is running unless
the following is guaranteed:
- that the I2C bus will not be suspended.
- that there will not be collisions with other bus masters.
Without those guarantees, please use a trampoline driver to route the
I2C requests to Linux.
Tested on imx8mm-lpddr4.
[1] i.MX 8M Mini Applications Processor Reference Manual
Document Number: IMX8MMMRM
Rev.2 08/2019
Tested-by: Jorge Ramirez-Ortiz <jorge@foundries.io> (imx8mm)
Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Acked-by: Jerome Forissier <jerome@forissier.org>
|
| H A D | imx8m.h | 78b3ea9c917074b0a61eca94106a09ffbaa3e904 Fri May 29 16:14:31 UTC 2020 Jorge Ramirez-Ortiz <jorge@foundries.io> drivers: imx_i2c: add I2C support
This driver provides native access to the I2C bus on iMX.
The driver will not query the clock hierarchy - to find the base clock
rate - because it overcomplicates the deliverable for not much added
value (this can be done at a later time if required).
The U-Boot and Linux GPL code was initially used as a reference;
however due to the simpler OP-TEE use case requirements, the code was
later re-written following the reference manual [1].
This driver will not access addresses within a I2C slave map.
This driver must not be used while the Linux kernel is running unless
the following is guaranteed:
- that the I2C bus will not be suspended.
- that there will not be collisions with other bus masters.
Without those guarantees, please use a trampoline driver to route the
I2C requests to Linux.
Tested on imx8mm-lpddr4.
[1] i.MX 8M Mini Applications Processor Reference Manual
Document Number: IMX8MMMRM
Rev.2 08/2019
Tested-by: Jorge Ramirez-Ortiz <jorge@foundries.io> (imx8mm)
Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Acked-by: Jerome Forissier <jerome@forissier.org>
|
| /optee_os/core/drivers/ |
| H A D | imx_i2c.c | 78b3ea9c917074b0a61eca94106a09ffbaa3e904 Fri May 29 16:14:31 UTC 2020 Jorge Ramirez-Ortiz <jorge@foundries.io> drivers: imx_i2c: add I2C support
This driver provides native access to the I2C bus on iMX.
The driver will not query the clock hierarchy - to find the base clock
rate - because it overcomplicates the deliverable for not much added
value (this can be done at a later time if required).
The U-Boot and Linux GPL code was initially used as a reference;
however due to the simpler OP-TEE use case requirements, the code was
later re-written following the reference manual [1].
This driver will not access addresses within a I2C slave map.
This driver must not be used while the Linux kernel is running unless
the following is guaranteed:
- that the I2C bus will not be suspended.
- that there will not be collisions with other bus masters.
Without those guarantees, please use a trampoline driver to route the
I2C requests to Linux.
Tested on imx8mm-lpddr4.
[1] i.MX 8M Mini Applications Processor Reference Manual
Document Number: IMX8MMMRM
Rev.2 08/2019
Tested-by: Jorge Ramirez-Ortiz <jorge@foundries.io> (imx8mm)
Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Acked-by: Jerome Forissier <jerome@forissier.org>
|
| H A D | sub.mk | 78b3ea9c917074b0a61eca94106a09ffbaa3e904 Fri May 29 16:14:31 UTC 2020 Jorge Ramirez-Ortiz <jorge@foundries.io> drivers: imx_i2c: add I2C support
This driver provides native access to the I2C bus on iMX.
The driver will not query the clock hierarchy - to find the base clock
rate - because it overcomplicates the deliverable for not much added
value (this can be done at a later time if required).
The U-Boot and Linux GPL code was initially used as a reference;
however due to the simpler OP-TEE use case requirements, the code was
later re-written following the reference manual [1].
This driver will not access addresses within a I2C slave map.
This driver must not be used while the Linux kernel is running unless
the following is guaranteed:
- that the I2C bus will not be suspended.
- that there will not be collisions with other bus masters.
Without those guarantees, please use a trampoline driver to route the
I2C requests to Linux.
Tested on imx8mm-lpddr4.
[1] i.MX 8M Mini Applications Processor Reference Manual
Document Number: IMX8MMMRM
Rev.2 08/2019
Tested-by: Jorge Ramirez-Ortiz <jorge@foundries.io> (imx8mm)
Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Etienne Carriere <etienne.carriere@linaro.org>
Acked-by: Jerome Forissier <jerome@forissier.org>
|