1. 07 Jun, 2012 2 commits
    • AnilKumar Ch's avatar
      can: c_can: Add support for Bosch D_CAN controller · 69927fcc
      AnilKumar Ch authored
      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: default avatarAnilKumar Ch <anilkumar@ti.com>
      Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
      69927fcc
    • AnilKumar Ch's avatar
      can: c_can: Move overlay structure to array with offset as index · 33f81009
      AnilKumar Ch authored
      c_can uses overlay structure for accessing c_can module registers.
      With this kind of implementation it is difficult to add one more ip
      which is similar to c_can in functionality but different register
      offsets.
      
      This patch changes the overlay structure implementation to an array
      with register offset as index. This way we can overcome the above
      limitation.
      Signed-off-by: default avatarAnilKumar Ch <anilkumar@ti.com>
      Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
      33f81009
  2. 06 Jun, 2012 26 commits
  3. 05 Jun, 2012 9 commits
  4. 04 Jun, 2012 3 commits