mirror of
https://github.com/AsahiLinux/u-boot
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a3fda0d30a
Remove some CONFIG symbols and related comments, etc, that are unused within the code itself at this point. Signed-off-by: Tom Rini <trini@konsulko.com>
168 lines
6.1 KiB
Text
168 lines
6.1 KiB
Text
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SOCFPGA Documentation for U-Boot and SPL
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----------------------------------------
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This README is about U-Boot and SPL support for Altera's ARM Cortex-A9MPCore
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based SOCFPGA. To know more about the hardware itself, please refer to
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www.altera.com.
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---------------------------------------------------------------------
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Cyclone 5 / Arria 5 generating the handoff header files for U-Boot SPL
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---------------------------------------------------------------------
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This text is assuming quartus 16.1, but newer versions will probably work just fine too;
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verified with DE1_SOC_Linux_FB demo project (https://github.com/VCTLabs/DE1_SOC_Linux_FB).
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Updated/working projects should build using either process below.
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Note: it *should* work from Quartus 14.0.200 onwards, however, the current vendor demo
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projects must have the IP cores updated as shown below.
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Rebuilding your Quartus project
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-------------------------------
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Choose one of the follwing methods, either command line or GUI.
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Using the command line
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~~~~~~~~~~~~~~~~~~~~~~
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First run the embedded command shell, using your path to the Quartus install:
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$ /path/to/intelFPGA/16.1/embedded/embedded_command_shell.sh
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Then (if necessary) update the IP cores in the project, generate HDL code, and
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build the project:
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$ cd path/to/project/dir
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$ qsys-generate soc_system.qsys --upgrade-ip-cores
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$ qsys-generate soc_system.qsys --synthesis=[VERILOG|VHDL]
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$ quartus_sh --flow compile <project name>
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Convert the resulting .sof file (SRAM object file) to .rbf file (Raw bit file):
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$ quartus_cpf -c <project_name>.sof soc_system.rbf
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Generate BSP handoff files
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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You can run the bsp editor GUI below, or run the following command from the
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project directory:
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$ /path/to/bsb/tools/bsp-create-settings --type spl --bsp-dir build \
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--preloader-settings-dir hps_isw_handoff/soc_system_hps_0/ \
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--settings build/settings.bsp
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You should use the bsp "build" directory above (ie, where the settings.bsp file is)
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in the following u-boot command to update the board headers. Once these headers
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are updated for a given project build, u-boot should be configured for the
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project board (eg, de0-nano-sockit) and then build the normal spl build.
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Now you can skip the GUI section.
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Using the Qsys GUI
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~~~~~~~~~~~~~~~~~~
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1. Navigate to your project directory
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2. Run Quartus II
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3. Open Project (Ctrl+J), select <project_name>.qpf
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4. Run QSys [Tools->QSys]
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4.1 In the Open dialog, select '<project_name>.qsys'
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4.2 In the Open System dialog, wait until completion and press 'Close'
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4.3 In the Qsys window, click on 'Generate HDL...' in bottom right corner
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4.3.1 In the 'Generation' window, click 'Generate'
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4.3.2 In the 'Generate' dialog, wait until completion and click 'Close'
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4.4 In the QSys window, click 'Finish'
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4.4.1 In the 'Quartus II' pop up window, click 'OK'
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5. Back in Quartus II main window, do the following
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5.1 Use Processing -> Start -> Start Analysis & Synthesis (Ctrl+K)
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5.2 Use Processing -> Start Compilation (Ctrl+L)
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... this may take some time, have patience ...
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6. Start the embedded command shell as shown in the previous section
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6.1 Change directory to 'software/spl_bsp'
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6.2 Prepare BSP by launching the BSP editor from ECS
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=> bsp-editor
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6.3 In BSP editor
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6.3.1 Use File -> Open
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6.3.2 Select 'settings.bsp' file
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6.3.3 Click Generate
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6.3.4 Click Exit
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Post handoff generation
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~~~~~~~~~~~~~~~~~~~~~~~
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Now that the handoff files are generated, U-Boot can be used to process
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the handoff files generated by the bsp-editor. For this, please use the
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following script from the u-boot source tree:
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$ ./arch/arm/mach-socfpga/qts-filter.sh \
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<soc_type> \
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<input_qts_dir> \
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<input_bsp_dir> \
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<output_dir>
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Process QTS-generated files into U-Boot compatible ones.
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soc_type - Type of SoC, either 'cyclone5' or 'arria5'.
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input_qts_dir - Directory with compiled Quartus project
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and containing the Quartus project file (QPF).
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input_bsp_dir - Directory with generated bsp containing
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the settings.bsp file.
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output_dir - Directory to store the U-Boot compatible
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headers.
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This will generate (or update) the following 4 files:
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iocsr_config.h
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pinmux_config.h
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pll_config.h
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sdram_config.h
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These files should be copied into "qts" directory in the board directory
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(see output argument of qts-filter.sh command above).
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Here is an example for the DE-0 Nano SoC after the above rebuild process:
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$ ll board/terasic/de0-nano-soc/qts/
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total 36
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-rw-r--r-- 1 sarnold sarnold 8826 Mar 21 18:11 iocsr_config.h
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-rw-r--r-- 1 sarnold sarnold 4398 Mar 21 18:11 pinmux_config.h
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-rw-r--r-- 1 sarnold sarnold 3190 Mar 21 18:11 pll_config.h
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-rw-r--r-- 1 sarnold sarnold 9022 Mar 21 18:11 sdram_config.h
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Note: file sizes will differ slightly depending on the selected board.
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Now your board is ready for full mainline support including U-Boot SPL.
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The Preloader will not be needed any more.
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----------------------------------------------------------
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Arria 10 generating the handoff header files for U-Boot SPL
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----------------------------------------------------------
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A header file for inclusion in a devicetree for Arria10 can be generated
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by the qts-filter-a10.sh script directly from the hps_isw_handoff/hps.xml
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file generated during the FPGA project compilation. The header contains
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all PLL, clock, pinmux, and bridge configurations required.
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Please look at the socfpga_arria10_socdk_sdmmc-u-boot.dtsi for an example
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that includes use of the generated handoff header.
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Devicetree header generation
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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The qts-filter-a10.sh script can process the compile time genetated hps.xml
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to create the appropriate devicetree header.
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$ ./arch/arm/mach-socfpga/qts-filter-a10.sh \
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<hps_xml> \
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<output_file>
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hps_xml - hps_isw_handoff/hps.xml from Quartus project
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output_file - Output filename and location for header file
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The script generates a single header file names <output_file> that should
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be placed in arch/arm/dts.
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