core: replace _fdt_ prefix with fdt_ for device tree API

As per upstream discussion, there is no reason to keep _fdt_ prefix.
Replaces it with fdt_ for all occurrences.

Signed-off-by: Gatien Cheval

core: replace _fdt_ prefix with fdt_ for device tree API

As per upstream discussion, there is no reason to keep _fdt_ prefix.
Replaces it with fdt_ for all occurrences.

Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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core: dt: Make it possible to alter device mapping

In case where IP core device is TrustZone aware and is used by both REE
and TEE dt_map_dev() would normally cause non-secure mapping for the
device

core: dt: Make it possible to alter device mapping

In case where IP core device is TrustZone aware and is used by both REE
and TEE dt_map_dev() would normally cause non-secure mapping for the
device.

When selected registers in IP core are only accessible by TrustZone device
needs to be mapped with MEM_AREA_IO_SEC to cause actual AXI memory access
be made with AWPROT[1] and ARPROT[1] bits configured properly.

This adds new argument for dt_map_dev() to enable forcing mapping to be
secure or non-secure.

Signed-off-by: Vesa Jääskeläinen <vesa.jaaskelainen@vaisala.com>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>

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drivers: imx-i2c: add support for imx8mn

Add i2c support for imx8mn platforms

Signed-off-by: Gerard Koskamp <gerard.koskamp@nedap.com>
Reviewed-by: Robert Krikke <robert.krikke@nedap.com>
Acked-by:

drivers: imx-i2c: add support for imx8mn

Add i2c support for imx8mn platforms

Signed-off-by: Gerard Koskamp <gerard.koskamp@nedap.com>
Reviewed-by: Robert Krikke <robert.krikke@nedap.com>
Acked-by: Jorge Ramirez-Ortiz <jorge@foundries.io>

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drivers: imx_i2c: update the daisy chain setting for I2C1

Looking at IMX6ULLRM Rev. 1, 11/2017 paragraph 32.6.329
says the daisy chain for SDA on I2C1 on imx6ull-evk is 2 not 1.

Signed-off-by: Tim

drivers: imx_i2c: update the daisy chain setting for I2C1

Looking at IMX6ULLRM Rev. 1, 11/2017 paragraph 32.6.329
says the daisy chain for SDA on I2C1 on imx6ull-evk is 2 not 1.

Signed-off-by: Tim Anderson <tim.anderson@foundries.io>
Acked-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jorge Ramirez-Ortiz <jorge@foundries.io>

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drivers: imx_i2c: update the I2C initialization

NXP drivers in both u-boot and linux waits 50us after enabling
the bus controller to stabilize the bus.

Signed-off-by: Tim Anderson <tim.anderson@fou

drivers: imx_i2c: update the I2C initialization

NXP drivers in both u-boot and linux waits 50us after enabling
the bus controller to stabilize the bus.

Signed-off-by: Tim Anderson <tim.anderson@foundries.io>
Acked-by: Clement Faure <clement.faure@nxp.com>

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drivers: imx_i2c: add support for MX8MP

Add I2C driver support for iMX8MP.

Signed-off-by: Vanessa Maegima <vanessa.maegima@foundries.io>
Acked-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jo

drivers: imx_i2c: add support for MX8MP

Add I2C driver support for iMX8MP.

Signed-off-by: Vanessa Maegima <vanessa.maegima@foundries.io>
Acked-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jorge Ramirez-Ortiz <jorge@foundries.io>

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drivers: imx_i2c: support i2c4

Extend the driver functionality to support i2c4

Acked-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Signed-off-by: De

drivers: imx_i2c: support i2c4

Extend the driver functionality to support i2c4

Acked-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Signed-off-by: Devendra Devadiga <devendradevadiga01@gmail.com>

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drivers: imx_i2c: fix support for MX8MQ

Add missing config required to enable the support

Reviewed-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Signed-off-by: Devendra Devadiga <devendradevadiga01

drivers: imx_i2c: fix support for MX8MQ

Add missing config required to enable the support

Reviewed-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Signed-off-by: Devendra Devadiga <devendradevadiga01@gmail.com>

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drivers: imx_i2c: add support for MX8MQ

Add support for iMX8MQ.

Signed-off-by: David Griego <david.griego@foundries.io>
Reviewed-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Acked-by: Jens Wiklande

drivers: imx_i2c: add support for MX8MQ

Add support for iMX8MQ.

Signed-off-by: David Griego <david.griego@foundries.io>
Reviewed-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

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core_mmu: fix implicit behavior of core_mmu_add_mapping()

In core_mmu_add_mapping() requested physical address
rounded up/down to granule size (0x100000), which leads
to establishing of virtual mapp

core_mmu: fix implicit behavior of core_mmu_add_mapping()

In core_mmu_add_mapping() requested physical address
rounded up/down to granule size (0x100000), which leads
to establishing of virtual mappings with overlapped
physical counterparts. If two virtual mappings overlaps
due to such roundings, then following phys_to_virt() can
implicitly return result of virtual address from
unexpected mapping. This patch fix such behavior by
returning virtual address of newly established mapping.

Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Signed-off-by: Anton Rybakov <a.rybakov@omp.ru>

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drivers: imx_i2c: remove non-portable use of define

Fix the build error triggered when enabling
-Werror=expansion-to-defined

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Eti

drivers: imx_i2c: remove non-portable use of define

Fix the build error triggered when enabling
-Werror=expansion-to-defined

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Reviewed-by: Jerome Forissier <jerome@forissier.org>
Acked-by: Jens Wiklander <jens.wiklander@linaro.org>

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drivers: imx_i2c: move utility macros

Move I2C utility macros (driver specific) from SoC specific register
definition files to the driver.

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Re

drivers: imx_i2c: move utility macros

Move I2C utility macros (driver specific) from SoC specific register
definition files to the driver.

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jerome Forissier <jerome@forissier.org>

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drivers: imx_i2c: get base addresses from device tree

Enable device tree support.

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Clement Faure <clement.faure@nxp.com>
Acked-by

drivers: imx_i2c: get base addresses from device tree

Enable device tree support.

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jerome Forissier <jerome@forissier.org>

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drivers: imx_i2c: enable the driver when not all three buses are ready

Allow the driver to operate even though not all three buses might have
been configured.

Signed-off-by: Jorge Ramirez-Ortiz <jo

drivers: imx_i2c: enable the driver when not all three buses are ready

Allow the driver to operate even though not all three buses might have
been configured.

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jerome Forissier <jerome@forissier.org>

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drivers: imx_i2c: add support for imx6ull

Support native I2C access on imx6ull (this SoC has an additional
register - compared to the imx8mm - to configure the daisy chain in
the iomuxc).

A patch [

drivers: imx_i2c: add support for imx6ull

Support native I2C access on imx6ull (this SoC has an additional
register - compared to the imx8mm - to configure the daisy chain in
the iomuxc).

A patch [1] has been sent to U-boot to address their current release
as of Oct 23, 2020 - where the peripheral clock is still set to 66MHz
instead of 24MHz.

Tested on imx6ull-evk 14x14 with the bus at 400Kbps.
[1] https://lists.denx.de/pipermail/u-boot/2020-October/430482.html

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jerome Forissier <jerome@forissier.org>

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drivers: imx_i2c: prepare for imx6ull support

Improve code readability before adding support for more platforms.

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Clement Faure <

drivers: imx_i2c: prepare for imx6ull support

Improve code readability before adding support for more platforms.

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Clement Faure <clement.faure@nxp.com>
Acked-by: Jerome Forissier <jerome@forissier.org>

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drivers: imx_i2c: early_init

When i2c SE elements (crypto providers) are enabled, the driver
requires early initialization. This should be made the default
scenario for drivers with this use case

S

drivers: imx_i2c: early_init

When i2c SE elements (crypto providers) are enabled, the driver
requires early initialization. This should be made the default
scenario for drivers with this use case

Signed-off-by: Jorge Ramirez-Ortiz <jorge@foundries.io>
Reviewed-by: Etienne Carriere <etienne.carriere@linaro.org>
Acked-by: Jerome Forissier <jerome@forissier.org>

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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

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>

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