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This adds more generic base device trees for Vybrid SoCs. There are three series of Vybrid SoC commonly available: - VF3xx series: single core, Cortex-A5 without external memory - VF5xx series: single core, Cortex-A5 - VF6xx series: dual core, Cortex-A5/Cortex-M4 The second digit represents the presents of a L2 cache (VFx1x). The VF3xx series are not suitable for Linux especially since the internal memory is quite small (1.5MiB). The VF500 is essentially the base SoC, with only one core and without L1 cache. The VF610 is a superset of the VF500, hence vf500.dtsi is then included and enhanced by vf610.dtsi. There is no board using VF510 or VF600 currently, but, if needed, they can be added easily. The Linux kernel can also run on the Cortex-M4 CPU of Vybrid using !MMU support. This patchset creates a device tree structure which allows to share peripherals nodes for a VF6xx Cortex-M4 device tree too. The two CPU types have different views of the system: Foremost they are using different interrupt controllers, but also the memory map is slightly different. The base device tree vfxxx.dtsi allows to create SoC and board level device trees supporting the Cortex-M4 while reusing the shared peripherals nodes. Signed-off-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
26 lines
576 B
Plaintext
26 lines
576 B
Plaintext
/*
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* Copyright 2013 Freescale Semiconductor, Inc.
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include "vf500.dtsi"
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&a5_cpu {
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next-level-cache = <&L2>;
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};
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&aips0 {
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L2: l2-cache@40006000 {
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compatible = "arm,pl310-cache";
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reg = <0x40006000 0x1000>;
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cache-unified;
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cache-level = <2>;
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arm,data-latency = <1 1 1>;
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arm,tag-latency = <2 2 2>;
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};
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};
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