1Nuvoton iBMC boards (``*-bmc``, ``npcm750-evb``, ``quanta-gsj``) 2================================================================ 3 4The `Nuvoton iBMC`_ chips (NPCM7xx) are a family of ARM-based SoCs that are 5designed to be used as Baseboard Management Controllers (BMCs) in various 6servers. They all feature one or two ARM Cortex-A9 CPU cores, as well as an 7assortment of peripherals targeted for either Enterprise or Data Center / 8Hyperscale applications. The former is a superset of the latter, so NPCM750 has 9all the peripherals of NPCM730 and more. 10 11.. _Nuvoton iBMC: https://www.nuvoton.com/products/cloud-computing/ibmc/ 12 13The NPCM750 SoC has two Cortex-A9 cores and is targeted for the Enterprise 14segment. The following machines are based on this chip : 15 16- ``npcm750-evb`` Nuvoton NPCM750 Evaluation board 17 18The NPCM730 SoC has two Cortex-A9 cores and is targeted for Data Center and 19Hyperscale applications. The following machines are based on this chip : 20 21- ``quanta-gbs-bmc`` Quanta GBS server BMC 22- ``quanta-gsj`` Quanta GSJ server BMC 23 24There are also two more SoCs, NPCM710 and NPCM705, which are single-core 25variants of NPCM750 and NPCM730, respectively. These are currently not 26supported by QEMU. 27 28Supported devices 29----------------- 30 31 * SMP (Dual Core Cortex-A9) 32 * Cortex-A9MPCore built-in peripherals: SCU, GIC, Global Timer, Private Timer 33 and Watchdog. 34 * SRAM, ROM and DRAM mappings 35 * System Global Control Registers (GCR) 36 * Clock and reset controller (CLK) 37 * Timer controller (TIM) 38 * Serial ports (16550-based) 39 * DDR4 memory controller (dummy interface indicating memory training is done) 40 * OTP controllers (no protection features) 41 * Flash Interface Unit (FIU; no protection features) 42 * Random Number Generator (RNG) 43 * USB host (USBH) 44 * GPIO controller 45 * Analog to Digital Converter (ADC) 46 * Pulse Width Modulation (PWM) 47 * SMBus controller (SMBF) 48 * Ethernet controller (EMC) 49 * Tachometer 50 51Missing devices 52--------------- 53 54 * LPC/eSPI host-to-BMC interface, including 55 56 * Keyboard and mouse controller interface (KBCI) 57 * Keyboard Controller Style (KCS) channels 58 * BIOS POST code FIFO 59 * System Wake-up Control (SWC) 60 * Shared memory (SHM) 61 * eSPI slave interface 62 63 * Ethernet controller (GMAC) 64 * USB device (USBD) 65 * Peripheral SPI controller (PSPI) 66 * SD/MMC host 67 * PECI interface 68 * PCI and PCIe root complex and bridges 69 * VDM and MCTP support 70 * Serial I/O expansion 71 * LPC/eSPI host 72 * Coprocessor 73 * Graphics 74 * Video capture 75 * Encoding compression engine 76 * Security features 77 78Boot options 79------------ 80 81The Nuvoton machines can boot from an OpenBMC firmware image, or directly into 82a kernel using the ``-kernel`` option. OpenBMC images for ``quanta-gsj`` and 83possibly others can be downloaded from the OpenPOWER jenkins : 84 85 https://openpower.xyz/ 86 87The firmware image should be attached as an MTD drive. Example : 88 89.. code-block:: bash 90 91 $ qemu-system-arm -machine quanta-gsj -nographic \ 92 -drive file=image-bmc,if=mtd,bus=0,unit=0,format=raw 93 94The default root password for test images is usually ``0penBmc``. 95