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Last change
on this file since 758 was
758,
checked in by cfuguet, 11 years ago
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tsar_boot: improving configuration infrastructure
- Using hard_config.h which respects the same sintax that
the hard_config.h file of all TSAR platforms.
This file can be then generated by the GIET-VM genmap
tool or written manually.
- All peripheral drivers have been moved to a drivers
directory and they are compiled as a static library.
This allows GCC to only include in the final .ELF the
object files of used peripherals and not all of them.
- Example hard_config.h and ldscripts have been introduced
in the conf directory.
- Improving comments in all files
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File size:
1.7 KB
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| 1 | \author: Cesar Fuguet |
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| 2 | \date : July 24, 2014 |
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| 3 | |
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| 4 | TSAR BOOT-LOADER |
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| 5 | |
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| 6 | Files: |
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| 7 | src/ Source files |
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| 8 | The entry point of this boot loader is the file reset.S |
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| 9 | |
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| 10 | include/ Header files |
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| 11 | |
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| 12 | driver/ Drivers source files and headers |
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| 13 | |
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| 14 | conf/ Platform specific files and ldscript |
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| 15 | For each platform, we must define a new directory. |
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| 16 | Mandatory files: |
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| 17 | |
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| 18 | - hard_config.h (can be generated using giet-vm genmap tool) |
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| 19 | |
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| 20 | - ldscript |
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| 21 | |
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| 22 | Optional files: |
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| 23 | |
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| 24 | - platform.dts (platform device tree) |
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| 25 | |
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| 26 | Makefile Makefile to compile the boot loader. |
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| 27 | Mandatory arguments: |
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| 28 | |
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| 29 | - PLATFORM_DIR=<platform_dir> |
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| 30 | |
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| 31 | Defines the directory where to find the plateform specific |
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| 32 | files |
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| 33 | |
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| 34 | Optional arguments: |
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| 35 | |
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| 36 | - USE_DT=<value> |
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| 37 | |
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| 38 | Value can be 1 or 0. |
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| 39 | If a device tree file is not used, set this flag to 0. It is |
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| 40 | set by default to 1. |
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| 41 | |
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| 42 | - SYSTEM_CLK=<platform clock frequency> |
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| 43 | |
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| 44 | Platform clock frequency in KHz |
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| 45 | |
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| 46 | - DTS=<file.dts> |
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| 47 | |
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| 48 | Platform device tree (by default is platform.dts) |
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| 49 | |
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| 50 | Examples: |
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| 51 | |
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| 52 | make PLATFORM_DIR=<platform_dir> USE_DT=0 |
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| 53 | |
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| 54 | Compile for <platform_dir> and do not compile device tree file |
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| 55 | |
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| 56 | make PLATFORM_DIR=<platform_dir> DTS=platform_fpga.dts SYSTEM_CLK=25000 |
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| 57 | |
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| 58 | Compile for <platform_dir> and compile the 'platform_dpga.dts' |
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| 59 | device tree file. System clock frequency is 25 MHz |
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| 60 | |
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| 61 | make PLATFORM_DIR=<platform_conf> SYSTEM_CLK=25000 |
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| 62 | |
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| 63 | Compile for <platform_dir> and compile the 'platform.dts' |
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| 64 | device tree file (default name). System clock frequency is 25 MHz |
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| 65 | |
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