Hi Tony, These patches add CAN support for am33xx, am43xx and dra7 platforms. They must go in together with CAN driver RAMINIT Syscon support [1]. Tested on am335x-evm, am437x-gp-evm and dra7-evm. NOTE: - for DCAN to work on DRA7 we need this patch to keep the CAN PHY powered. https://lkml.org/lkml/2014/10/21/484 - There is another issue which causes undesired behaviour if WKUPAON and L4CFG clock domains are allowed to HW_AUTO. Undesired behaviour is in the form of DCAN1 module being stuck-in-transition when disabled and RAMINIT-done bit not getting set as part of RAMINIT mechanism. To address these issues there is a patch to prevent these clockdomains from HW_AUTO. https://github.com/rogerq/linux/commit/31d6da939dbbaf8ea2ab96ca5680b81cd5607e51 Even without this second patch DCAN seems to work. cheers, -roger Changelog: v3: - Move raminit register data into driver data - rename syscon property to "syscon-raminit" v2: - Added vendor prefix "ti," to raminit properties - Updated am335x dcan nodes [1] - CAN driver RAMINIT Syscon support http://article.gmane.org/gmane.linux.can/6773 cheers, -roger --- Mugunthan V N (1): arm: dts: am437x-gp: Add dcan support Roger Quadros (9): ARM: dts: dra7: Add syscon regmap for CORE CONTROL area ARM: dts: DRA7: Add DCAN nodes ARM: dts: dra7-evm: Add CAN support ARM: dts: dra72-evm: Add CAN support ARM: dts: am4372: Add control module syscon node ARM: dts: am4372: Add DCAN nodes ARM: dts: am33xx: Add control module syscon node ARM: dts: am33xx: Update DCAN nodes ARM: dts: am335x-evm: Add DCAN1 details arch/arm/boot/dts/am335x-evm.dts | 13 +++++++++++++ arch/arm/boot/dts/am33xx.dtsi | 25 +++++++++++++++++-------- arch/arm/boot/dts/am4372.dtsi | 27 +++++++++++++++++++++++++++ arch/arm/boot/dts/am437x-gp-evm.dts | 26 ++++++++++++++++++++++++++ arch/arm/boot/dts/dra7-evm.dts | 23 +++++++++++++++++++++++ arch/arm/boot/dts/dra7.dtsi | 27 +++++++++++++++++++++++++++ arch/arm/boot/dts/dra72-evm.dts | 23 +++++++++++++++++++++++ 7 files changed, 156 insertions(+), 8 deletions(-) -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
