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c3f6b2cf9f
- Most of the boards are using U-Boot, u-boot embed a DTB that isn't compiled with -@ (overlay ready) so we cannot use overlays. We want overlays, overlays are nice. - The DTS life is going to linux, then sometimes it's imported in U-Boot but it depend on the SoC family, U-Boot doesn't batch import every DTS like we do. So sometimes to U-Boot DTS are very old. Or when an interesting patch in commited upstream it is in Linux X+2 (roughly 4 months from now), we then have to wait for U-Boot to catch up, that give us between 4 and 6 months to have an update. - Some boards like the Marvell ones have 3 DTS, the one in the vendor U-Boot made by Marvell themselves, the one in u-boot mainline and the one in Linux. I found that the DTS in the Marvell U-Boot have some problem with FreeBSD (especially the macchiatobin that declare node with the same address but not the same size, that is not something that the rman code can handle, it could be modified, I don't know the code well enough). Also some compatible are used when they shouldn't, for example they declare the gpio being orion-gpio while this binding requires interrupts supports, which the node doesn't have. - The above situation is mostly the same with RockChip SoCs (possibly others, those are the only SoCs I work on that have this problem). Note that importing the DTS doesn't mean that every board will use them, I don't intend to copy the DTB to the GENERIC memstick image for the Overdrive 1000/3000 for example, the ones provided by the firmware works fine. RPI3 will still stay an exception as we use the DTB provided by the rpi-firmware package, so they come from the rpi foundation linux fork.
105 lines
3.4 KiB
Text
105 lines
3.4 KiB
Text
/*
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* BSD LICENSE
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*
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* Copyright (c) 2016 Broadcom. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Broadcom Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <dt-bindings/clock/bcm-ns2.h>
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osc: oscillator {
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#clock-cells = <0>;
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compatible = "fixed-clock";
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clock-frequency = <25000000>;
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};
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lcpll_ddr: lcpll_ddr@6501d058 {
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#clock-cells = <1>;
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compatible = "brcm,ns2-lcpll-ddr";
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reg = <0x6501d058 0x20>,
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<0x6501c020 0x4>,
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<0x6501d04c 0x4>;
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clocks = <&osc>;
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clock-output-names = "lcpll_ddr", "pcie_sata_usb",
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"ddr", "ddr_ch2_unused",
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"ddr_ch3_unused", "ddr_ch4_unused",
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"ddr_ch5_unused";
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};
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lcpll_ports: lcpll_ports@6501d078 {
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#clock-cells = <1>;
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compatible = "brcm,ns2-lcpll-ports";
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reg = <0x6501d078 0x20>,
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<0x6501c020 0x4>,
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<0x6501d054 0x4>;
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clocks = <&osc>;
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clock-output-names = "lcpll_ports", "wan", "rgmii",
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"ports_ch2_unused",
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"ports_ch3_unused",
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"ports_ch4_unused",
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"ports_ch5_unused";
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};
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genpll_scr: genpll_scr@6501d098 {
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#clock-cells = <1>;
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compatible = "brcm,ns2-genpll-scr";
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reg = <0x6501d098 0x32>,
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<0x6501c020 0x4>,
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<0x6501d044 0x4>;
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clocks = <&osc>;
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clock-output-names = "genpll_scr", "scr", "fs",
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"audio_ref", "scr_ch3_unused",
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"scr_ch4_unused", "scr_ch5_unused";
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};
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iprocmed: iprocmed {
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#clock-cells = <0>;
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compatible = "fixed-factor-clock";
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clocks = <&genpll_scr BCM_NS2_GENPLL_SCR_SCR_CLK>;
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clock-div = <2>;
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clock-mult = <1>;
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};
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iprocslow: iprocslow {
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#clock-cells = <0>;
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compatible = "fixed-factor-clock";
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clocks = <&genpll_scr BCM_NS2_GENPLL_SCR_SCR_CLK>;
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clock-div = <4>;
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clock-mult = <1>;
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};
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genpll_sw: genpll_sw@6501d0c4 {
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#clock-cells = <1>;
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compatible = "brcm,ns2-genpll-sw";
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reg = <0x6501d0c4 0x32>,
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<0x6501c020 0x4>,
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<0x6501d044 0x4>;
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clocks = <&osc>;
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clock-output-names = "genpll_sw", "rpe", "250", "nic",
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"chimp", "port", "sdio";
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};
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