54 lines
1.2 KiB
Markdown
54 lines
1.2 KiB
Markdown
Bosch M_CAN (CAN Controller) Device Driver
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==========================================
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Files
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-----
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* *.c : Driver C-Source Files
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* Kconfig : Config file for menuconfig etc.
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* Makefile : Makefile for Kernel Build
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Patch Kernel
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------------
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* Apply the specific commits on your kernel source tree
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* Or copy the newest m_can.c to your kernel source tree.
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Compile
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-------
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compile as normal Kernel Driver.
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* Driver can be compiled as an externel module.
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* Driver can be compiled statically into the kernel.
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* selectable with menuconfig
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Device Tree
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-----------
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The following code shows a basic device tree for an M_CAN node:
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```
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/* M_CAN Device Tree Nodes */
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/* Example clocks */
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hclk: hclk {
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compatible = "fixed-clock";
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#clock-cells = < 0 >;
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clock-frequency = <50000000>;
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};
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cclk: cclk {
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compatible = "fixed-clock";
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#clock-cells = < 0 >;
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clock-frequency = <40000000>;
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};
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/* M_CAN device */
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mcan0: can@0xff240000 {
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compatible = "bosch,m_can";
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reg = <0xff240000 0x200>,<0xff260000 0x4000>;
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reg-names = "m_can", "message_ram";
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interrupt-parent = <&intc>;
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interrupts = <0x0 40 0x4>;
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interrupt-names = "int0";
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clocks = <&hclk>, <&cclk>;
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clock-names = "hclk", "cclk";
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bosch,mram-cfg = <0x0 128 64 64 32 64 32 32>;
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};
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```
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