1 Nuvoton iBMC boards (``npcm750-evb``, ``quanta-gsj``)
2 =====================================================
4 The `Nuvoton iBMC`_ chips (NPCM7xx) are a family of ARM-based SoCs that are
5 designed to be used as Baseboard Management Controllers (BMCs) in various
6 servers. They all feature one or two ARM Cortex A9 CPU cores, as well as an
7 assortment of peripherals targeted for either Enterprise or Data Center /
8 Hyperscale applications. The former is a superset of the latter, so NPCM750 has
9 all the peripherals of NPCM730 and more.
11 .. _Nuvoton iBMC: https://www.nuvoton.com/products/cloud-computing/ibmc/
13 The NPCM750 SoC has two Cortex A9 cores and is targeted for the Enterprise
14 segment. The following machines are based on this chip :
16 - ``npcm750-evb`` Nuvoton NPCM750 Evaluation board
18 The NPCM730 SoC has two Cortex A9 cores and is targeted for Data Center and
19 Hyperscale applications. The following machines are based on this chip :
21 - ``quanta-gsj`` Quanta GSJ server BMC
23 There are also two more SoCs, NPCM710 and NPCM705, which are single-core
24 variants of NPCM750 and NPCM730, respectively. These are currently not
30 * SMP (Dual Core Cortex-A9)
31 * Cortex-A9MPCore built-in peripherals: SCU, GIC, Global Timer, Private Timer
33 * SRAM, ROM and DRAM mappings
34 * System Global Control Registers (GCR)
35 * Clock and reset controller (CLK)
36 * Timer controller (TIM)
37 * Serial ports (16550-based)
38 * DDR4 memory controller (dummy interface indicating memory training is done)
39 * OTP controllers (no protection features)
40 * Flash Interface Unit (FIU; no protection features)
41 * Random Number Generator (RNG)
48 * LPC/eSPI host-to-BMC interface, including
50 * Keyboard and mouse controller interface (KBCI)
51 * Keyboard Controller Style (KCS) channels
53 * System Wake-up Control (SWC)
55 * eSPI slave interface
57 * Ethernet controllers (GMAC and EMC)
59 * SMBus controller (SMBF)
60 * Peripheral SPI controller (PSPI)
61 * Analog to Digital Converter (ADC)
64 * Pulse Width Modulation (PWM)
66 * PCI and PCIe root complex and bridges
67 * VDM and MCTP support
68 * Serial I/O expansion
73 * Encoding compression engine
79 The Nuvoton machines can boot from an OpenBMC firmware image, or directly into
80 a kernel using the ``-kernel`` option. OpenBMC images for `quanta-gsj` and
81 possibly others can be downloaded from the OpenPOWER jenkins :
83 https://openpower.xyz/
85 The firmware image should be attached as an MTD drive. Example :
89 $ qemu-system-arm -machine quanta-gsj -nographic \
90 -drive file=image-bmc,if=mtd,bus=0,unit=0,format=raw
92 The default root password for test images is usually ``0penBmc``.