diff options
Diffstat (limited to 'user')
| -rw-r--r-- | user/bsps/bsps-arm.rst | 75 |
1 files changed, 73 insertions, 2 deletions
diff --git a/user/bsps/bsps-arm.rst b/user/bsps/bsps-arm.rst index a554508..ba306bf 100644 --- a/user/bsps/bsps-arm.rst +++ b/user/bsps/bsps-arm.rst @@ -1,6 +1,7 @@ .. SPDX-License-Identifier: CC-BY-SA-4.0 -.. Copyright (C) 2017, 2018 embedded brains GmbH +.. Copyright (C) 2017, 2019 embedded brains GmbH +.. Copyright (C) 2017, 2019 Sebastian Huber arm (ARM) ********* @@ -8,7 +9,77 @@ arm (ARM) altera-cyclone-v ================ -TODO. +This BSP offers only one variant, the `altcycv_devkit`. This variant supports +the Intel Cyclone V system on chip. The basic hardware initialization is not +performed by the BSP. A boot loader with device tree support must be used to +start the BSP, e.g. U-Boot. + +The BSP is known to run on these boards: + +* `Cyclone V SoC Development Kit <https://www.intel.com/content/www/us/en/programmable/products/boards_and_kits/dev-kits/altera/kit-cyclone-v-soc.html>`_ + +* `Enclustra Mars MA3 SoC Module <https://www.enclustra.com/en/products/system-on-chip-modules/mars-ma3/>`_ + +* `Terasic DE10-Standard Development Kit <https://www.terasic.com.tw/cgi-bin/page/archive.pl?Language=English&CategoryNo=165&No=1081>`_ + +Boot via U-Boot +--------------- + +The application executable file (ELF file) must be converted to an U-Boot +image. Use the following commands: + +:: + + arm-rtems5-objcopy -O binary app.exe app.bin + gzip -9 -f -c app.bin > app.bin.gz + mkimage -A arm -O linux -T kernel -a 0x00300000 -e 0x00300000 -n RTEMS -d app.bin.gz app.img + +Use the following U-Boot commands to boot an application via TFTP download: + +:: + + tftpboot ${loadaddr} app.img && run loadfdt && bootm ${loadaddr} - ${fdt_addr} ; reset + +Clock Driver +------------ + +The clock driver uses the `Cortex-A9 MPCore Global Timer`. + +Console Driver +-------------- + +The console driver supports up to two on-chip NS16550 UARTs. The console +driver does not configure the pins. + +I2C Driver +---------- + +There is a legacy I2C driver. It should be converted to the I2C driver framework. + +Network Interface Driver +------------------------ + +The network interface driver is provided by the `libbsd`. It is initialized +according to the device tree. It supports checksum offload. + +MMC/SDCard Driver +----------------- + +The MMC/SDCard driver is provided by the `libbsd`. It is +initialized according to the device tree. Pin re-configuration according to +the serial clock frequency is not supported. DMA transfers are supported. + +USB Host Driver +--------------- + +The USB host driver is provided by the `libbsd`. It is initialized according +to the device tree. The driver works in polled mode. + +Caveats +------- + +The clock and pin configuration support is quite rudimentary and mostly relies +on the boot loader. atsam ===== |