Aspeed family boards (``*-bmc``, ``ast2500-evb``, ``ast2600-evb``) ================================================================== The QEMU Aspeed machines model BMCs of various OpenPOWER systems and Aspeed evaluation boards. They are based on different releases of the Aspeed SoC : the AST2400 integrating an ARM926EJ-S CPU (400MHz), the AST2500 with an ARM1176JZS CPU (800MHz) and more recently the AST2600 with dual cores ARM Cortex-A7 CPUs (1.2GHz). The SoC comes with RAM, Gigabit ethernet, USB, SD/MMC, USB, SPI, I2C, etc. AST2400 SoC based machines : - ``palmetto-bmc`` OpenPOWER Palmetto POWER8 BMC AST2500 SoC based machines : - ``ast2500-evb`` Aspeed AST2500 Evaluation board - ``romulus-bmc`` OpenPOWER Romulus POWER9 BMC - ``witherspoon-bmc`` OpenPOWER Witherspoon POWER9 BMC - ``sonorapass-bmc`` OCP SonoraPass BMC - ``swift-bmc`` OpenPOWER Swift BMC POWER9 AST2600 SoC based machines : - ``ast2600-evb`` Aspeed AST2600 Evaluation board (Cortex-A7) - ``tacoma-bmc`` OpenPOWER Witherspoon POWER9 AST2600 BMC Supported devices ----------------- * SMP (for the AST2600 Cortex-A7) * Interrupt Controller (VIC) * Timer Controller * RTC Controller * I2C Controller * System Control Unit (SCU) * SRAM mapping * X-DMA Controller (basic interface) * Static Memory Controller (SMC or FMC) - Only SPI Flash support * SPI Memory Controller * USB 2.0 Controller * SD/MMC storage controllers * SDRAM controller (dummy interface for basic settings and training) * Watchdog Controller * GPIO Controller (Master only) * UART * Ethernet controllers * Front LEDs (PCA9552 on I2C bus) * LPC Peripheral Controller (a subset of subdevices are supported) * Hash/Crypto Engine (HACE) - Hash support only. TODO: HMAC and RSA Missing devices --------------- * Coprocessor support * ADC (out of tree implementation) * PWM and Fan Controller * Slave GPIO Controller * Super I/O Controller * PCI-Express 1 Controller * Graphic Display Controller * PECI Controller * MCTP Controller * Mailbox Controller * Virtual UART * eSPI Controller * I3C Controller Boot options ------------ The Aspeed machines can be started using the ``-kernel`` option to load a Linux kernel or from a firmware. Images can be downloaded from the OpenBMC jenkins : https://jenkins.openbmc.org/job/ci-openbmc/lastSuccessfulBuild/distro=ubuntu,label=docker-builder or directly from the OpenBMC GitHub release repository : https://github.com/openbmc/openbmc/releases The image should be attached as an MTD drive. Run : .. code-block:: bash $ qemu-system-arm -M romulus-bmc -nic user \ -drive file=obmc-phosphor-image-romulus.static.mtd,format=raw,if=mtd -nographic Options specific to Aspeed machines are : * ``execute-in-place`` which emulates the boot from the CE0 flash device by using the FMC controller to load the instructions, and not simply from RAM. This takes a little longer. * ``fmc-model`` to change the FMC Flash model. FW needs support for the chip model to boot. * ``spi-model`` to change the SPI Flash model. For instance, to start the ``ast2500-evb`` machine with a different FMC chip and a bigger (64M) SPI chip, use : .. code-block:: bash -M ast2500-evb,fmc-model=mx25l25635e,spi-model=mx66u51235f