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0adbe832f2
Add support for the MCAN peripheral which supports both classic CAN messages along with the new CAN-FD message. Add MCAN node to evm and enable it with a maximum datarate of 5 mbps Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
84 lines
2.1 KiB
Plaintext
84 lines
2.1 KiB
Plaintext
/*
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* Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include "dra74x.dtsi"
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/ {
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compatible = "ti,dra762", "ti,dra7";
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ocp {
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target-module@42c01900 {
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compatible = "ti,sysc-dra7-mcan", "ti,sysc";
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ranges = <0x0 0x42c00000 0x2000>;
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#address-cells = <1>;
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#size-cells = <1>;
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reg = <0x42c01900 0x4>,
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<0x42c01904 0x4>,
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<0x42c01908 0x4>;
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reg-names = "rev", "sysc", "syss";
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ti,sysc-mask = <(SYSC_OMAP4_SOFTRESET |
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SYSC_DRA7_MCAN_ENAWAKEUP)>;
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ti,syss-mask = <1>;
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clocks = <&wkupaon_clkctrl DRA7_ADC_CLKCTRL 0>;
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clock-names = "fck";
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m_can0: mcan@1a00 {
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compatible = "bosch,m_can";
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reg = <0x1a00 0x4000>, <0x0 0x18FC>;
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reg-names = "m_can", "message_ram";
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interrupt-parent = <&gic>;
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interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
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<GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
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interrupt-names = "int0", "int1";
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clocks = <&mcan_clk>, <&l3_iclk_div>;
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clock-names = "cclk", "hclk";
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bosch,mram-cfg = <0x0 0 0 32 0 0 1 1>;
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};
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};
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};
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};
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/* MCAN interrupts are hard-wired to irqs 67, 68 */
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&crossbar_mpu {
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ti,irqs-skip = <10 67 68 133 139 140>;
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};
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&scm_conf_clocks {
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dpll_gmac_h14x2_ctrl_ck: dpll_gmac_h14x2_ctrl_ck@3fc {
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#clock-cells = <0>;
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compatible = "ti,divider-clock";
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clocks = <&dpll_gmac_x2_ck>;
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ti,max-div = <63>;
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reg = <0x03fc>;
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ti,bit-shift=<20>;
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ti,latch-bit=<26>;
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assigned-clocks = <&dpll_gmac_h14x2_ctrl_ck>;
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assigned-clock-rates = <80000000>;
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};
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dpll_gmac_h14x2_ctrl_mux_ck: dpll_gmac_h14x2_ctrl_mux_ck@3fc {
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#clock-cells = <0>;
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compatible = "ti,mux-clock";
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clocks = <&dpll_gmac_ck>, <&dpll_gmac_h14x2_ctrl_ck>;
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reg = <0x3fc>;
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ti,bit-shift = <29>;
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ti,latch-bit=<26>;
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assigned-clocks = <&dpll_gmac_h14x2_ctrl_mux_ck>;
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assigned-clock-parents = <&dpll_gmac_h14x2_ctrl_ck>;
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};
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mcan_clk: mcan_clk@3fc {
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#clock-cells = <0>;
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compatible = "ti,gate-clock";
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clocks = <&dpll_gmac_h14x2_ctrl_mux_ck>;
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ti,bit-shift = <27>;
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reg = <0x3fc>;
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};
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};
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