5d2b60cbf6
This switches stage2 to C and uses Jinja to change the C code based on flash settings from https://github.com/adafruit/nvm.toml. It produces the fastest settings for the given set of external flashes. Flash size is no longer hard coded so switching flashes with similar capabilities but different sizes should *just work*. This PR also places "ITCM" code in RAM to save the XIP cache for code execution. Further optimization is possible. A blink code.py still requires a number of flash fetches every blink. Fixes #4041
43 lines
1.9 KiB
C
43 lines
1.9 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2020 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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// These macros are used to place code and data into different linking sections.
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#ifndef MICROPY_INCLUDED_SUPERVISOR_LINKER_H
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#define MICROPY_INCLUDED_SUPERVISOR_LINKER_H
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#if defined(IMXRT10XX) || defined(FOMU) || defined(STM32H7) || defined(RASPBERRYPI)
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#define PLACE_IN_DTCM_DATA(name) name __attribute__((section(".dtcm_data." #name)))
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#define PLACE_IN_DTCM_BSS(name) name __attribute__((section(".dtcm_bss." #name)))
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#define PLACE_IN_ITCM(name) __attribute__((section(".itcm." #name))) name
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#else
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#define PLACE_IN_DTCM_DATA(name) name
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#define PLACE_IN_DTCM_BSS(name) name
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#define PLACE_IN_ITCM(name) name
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#endif
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#endif // MICROPY_INCLUDED_SUPERVISOR_LINKER_H
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