diff options
| author | AnilKumar Ch <anilkumar@ti.com> | 2012-05-29 09:43:16 +0400 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2012-06-07 12:02:27 +0400 |
| commit | 69927fccd96b15bd228bb82d356a7a2a0cfaeefb (patch) | |
| tree | ef9487a9cab32ed0baa50749b4dbbe2232e0af99 /drivers/net/can/c_can/Kconfig | |
| parent | 33f8100977693fa09c2a32b1ca6dbf4d6eabdd0c (diff) | |
| download | linux-69927fccd96b15bd228bb82d356a7a2a0cfaeefb.tar.xz | |
can: c_can: Add support for Bosch D_CAN controller
This patch adds the support for D_CAN controller driver to the existing
C_CAN driver.
Bosch D_CAN controller is a full-CAN implementation which is compliant
to CAN protocol version 2.0 part A and B. Bosch D_CAN user manual can be
obtained from: http://www.semiconductors.bosch.de/media/en/pdf/
ipmodules_1/can/d_can_users_manual_111.pdf
A new array is added for accessing the d_can registers, according to d_can
controller register space.
Current D_CAN implementation has following limitations, this is done
to avoid large changes to the C_CAN driver.
1. Message objects are limited to 32, 16 for RX and 16 for TX. C_CAN IP
supports upto 32 message objects but in case of D_CAN we can configure
upto 128 message objects.
2. Using two 16bit reads/writes for accessing the 32bit D_CAN registers.
3. These patches have been tested on little endian machine, there might
be some hidden endian-related issues due to the nature of the accesses
(32-bit registers accessed as 2 16-bit registers). However, I do not
have a big-endian D_CAN implementation to confirm.
Signed-off-by: AnilKumar Ch <anilkumar@ti.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/c_can/Kconfig')
| -rw-r--r-- | drivers/net/can/c_can/Kconfig | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/net/can/c_can/Kconfig b/drivers/net/can/c_can/Kconfig index ffb9773d102d..25d371cf98dd 100644 --- a/drivers/net/can/c_can/Kconfig +++ b/drivers/net/can/c_can/Kconfig @@ -1,15 +1,16 @@ menuconfig CAN_C_CAN - tristate "Bosch C_CAN devices" + tristate "Bosch C_CAN/D_CAN devices" depends on CAN_DEV && HAS_IOMEM if CAN_C_CAN config CAN_C_CAN_PLATFORM - tristate "Generic Platform Bus based C_CAN driver" + tristate "Generic Platform Bus based C_CAN/D_CAN driver" ---help--- - This driver adds support for the C_CAN chips connected to - the "platform bus" (Linux abstraction for directly to the + This driver adds support for the C_CAN/D_CAN chips connected + to the "platform bus" (Linux abstraction for directly to the processor attached devices) which can be found on various - boards from ST Microelectronics (http://www.st.com) - like the SPEAr1310 and SPEAr320 evaluation boards. + boards from ST Microelectronics (http://www.st.com) like the + SPEAr1310 and SPEAr320 evaluation boards & TI (www.ti.com) + boards like am335x, dm814x, dm813x and dm811x. endif |