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This patch moves the regmap code into a seperate file.
Reviewed-by: Dan Murphy <[email protected]>
Tested-by: Sean Nyekjaer <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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This is a preparation patch to move the regmap related code into a seperate
file. This patch removes the tcan4x5x.c to tcan4x5x-core.c.
Reviewed-by: Dan Murphy <[email protected]>
Tested-by: Sean Nyekjaer <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Add support for M_CAN controller on Intel Elkhart Lake attached to the PCI bus.
It integrates the Bosch M_CAN controller with Message RAM and the wrapper IP
block with additional registers which all of them are within the same MMIO
range.
Currently only interrupt control register from wrapper IP is used and the MRAM
configuration is expected to come from the firmware via "bosch,mram-cfg" device
property and parsed by m_can.c core.
Initial implementation is done by Felipe Balbi while he was working at Intel
with later changes from Raymond Tan and me.
Co-developed-by: Felipe Balbi (Intel) <[email protected]>
Co-developed-by: Raymond Tan <[email protected]>
Signed-off-by: Felipe Balbi (Intel) <[email protected]>
Signed-off-by: Raymond Tan <[email protected]>
Signed-off-by: Jarkko Nikula <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Add the TCAN4x5x SPI CAN driver.
This device uses the Bosch MCAN IP core along with a SPI interface map.
Register to the MCAN common core code to manage the MCAN IP.
This device has a special method to indicate a write/read operation on
the data payload.
Acked-by: Wolfgang Grandegger <[email protected]>
Signed-off-by: Dan Murphy <[email protected]>
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Create a m_can platform framework that peripheral
devices can register to and use common code and register sets.
The peripheral devices may provide read/write and configuration
support of the IP.
Acked-by: Wolfgang Grandegger <[email protected]>
Signed-off-by: Dan Murphy <[email protected]>
Acked-by: Faiz Abbas <[email protected]>
Signed-off-by: Marc Kleine-Budde <[email protected]>
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Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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The patch adds the basic CAN TX/RX function support for Bosch M_CAN controller.
For TX, only one dedicated tx buffer is used for sending data.
For RX, RXFIFO 0 is used for receiving data to avoid overflow.
Rx FIFO 1 and Rx Buffers are not used currently, as well as Tx Event FIFO.
Due to the message ram can be shared by multi m_can instances
and the fifo element is configurable which is SoC dependant,
the design is to parse the message ram related configuration data from device
tree rather than hardcode define it in driver which can make the message
ram sharing fully transparent to M_CAN controller driver,
then we can gain better driver maintainability and future features upgrade.
M_CAN also supports CANFD protocol features like data payload up to 64 bytes
and bitrate switch at runtime, however, this patch still does not add the
support for these features.
Cc: Wolfgang Grandegger <[email protected]>
Cc: Marc Kleine-Budde <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Oliver Hartkopp <[email protected]>
Cc: Varka Bhadram <[email protected]>
Signed-off-by: Dong Aisheng <[email protected]>
Reviewed-by: Varka Bhadram <[email protected]>
Signed-off-by: Fengguang Wu <[email protected]>
[mkl: Squahed semicolon cleanup by Fengguang Wu]
Signed-off-by: Marc Kleine-Budde <[email protected]>
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