INTRO(4) NetBSD/evbarm Kernel Interfaces Manual INTRO(4)
NAME
intro -- introduction to evbarm special files and hardware support
DESCRIPTION
The evbarm port is really a collection of ports of NetBSD to a range of development and evaluation boards based on the ARM Architecture. This section describes the supported boards, the special files, related driver functions, and networking support available in each system. In this part of the manual, the SYNOPSIS section of each configurable device gives a sample specification for use in constructing a system description for the config(1) program. The DIAGNOSTICS section lists messages which may appear on the console and/or in the system error log /var/log/messages due to errors in device operation; see syslogd(8) for more information. This section contains both devices which may be configured into the sys- tem and network related information. The networking support is intro- duced in netintro(4).
SUPPORTED BOARDS
Each supported board requires a custom kernel for that board. The following boards are currently supported by the evbarm configuration: Integrator The Integrator/AP development system from ARM Ltd. Supported processor boards include the CM10200E and CM920T. IQ80310 The reference platform for the XScale-based IOP310 I/O processor from Intel. IQ80321 The reference platform for the XScale-based IOP321 I/O processor from Intel. Npwr The Npwr board, from Team ASA, is based on the IOP310 processor from Intel and targetted at the network- attached storage space. IXM1200 The reference platform for the XScale-based IXP1200 Network processor from Intel. SMDK2410 The reference platform for the ARM920T-based S3C2410 processor from Samsung. SMDK2800 The reference platform for the ARM920T-based S3C2800 processor from Samsung. BRH The BRH (Big Red Head) is an evaluation and development platform from ADI Engineering, based on the XScale- based I80200 processor NTNP425B An evaluation and development platform from NOVATEC, using the XScale-based IXP425 processor. DBPXA250 An evaluation and development platfrom from Intel, using the XScale-based PXA250 processor.
DEVICE SUPPORT
This section describes some of the hardware supported on the various boards. Software support for these devices comes in two forms. A hard- ware device may be supported with a character or block device driver, or it may be used within the networking subsystem and have a network interface driver. Block and character devices are accessed through files in the file system of a special type; see mknod(8). Network interfaces are indirectly accessed through the interprocess communication facilities provided by the system; see socket(2). A hardware device is identified to the system at configuration time and the appropriate device or network interface driver is then compiled into the system. When the resultant system is booted, the autoconfiguration facilities in the system probe for the device and, if found, enable the software support for it. If a device does not respond at autoconfigura- tion time it is not accessible at any time afterwards. To enable a device which did not autoconfigure, the system must be rebooted. The autoconfiguration system is described in autoconf(4). A list of the supported devices is given below.
LIST OF DEVICES
The devices listed below are supported in this incarnation of the system. Devices are indicated by their functional interface. Not all supported devices are listed. On the Integrator: plcom The PrimeCell PL010 UART. plrtc The PrimeCell PL030 Real-time Clock fxp Intel i82559 Ethernet PCI card. ahc Adaptec aic7880 SCSI controller. Other PCI based cards may also work, but have not been tested. On the IQ80310: fxp On-board Intel i82559 Ethernet com On-board NS16550-compatible serial ports Other PCI devices in the PCI expansion slots. On the IQ80321: wm On-board Intel i82544EI Gigabit Ethernet com On-board NS16550-compatible serial port iopaau On-chip Application Accelerator Unit iopwdog On-chip watchdog timer. Other devices in the PCI expansion slots. On Npwr: wm On-board Intel i82544EI Gigabit Ethernet siop On-board LSI Logic 53c1010 Ultra160 SCSI com On-board NS16550-compatible serial port On the IXM1200: fxp On-board Intel i82559 Ethernet nppb On-board Intel i21555 Non-Transparent PCI-PCI Bridge ixpcom On-chip serial port On the SMDK2410: sscom On-chip serial ports ohci On-chip USB host controller On the SMDK2800: sscom On-chip serial ports sspci On-chip Host-PCI bridge Other devices in the PCI expansion slots. On the BRH: com On-board NS16550-compatible serial ports fxp On-board i82559 Ethernet controller Other devices in the PCI expansion slots. On the NtNP425B: ixpcom On-chip serial ports ixpwdog On-chip watchdog timer Other devices in the PCI/mPCI slot. On the DBPXA250: com On-board NS16550-compatible serial port sm On-board SMC91C96 Ethernet controller sacc On-board SA-1111 StrongARM companion chip pckbd PS/2 keyboard lcd 640x480 LCD Other devices in the PCMCIA and CF card slots.
SEE ALSO
config(1), autoconf(4)
HISTORY
The evbarm intro appeared in NetBSD 2.0. NetBSD 5.1.5 September 7, 2003 NetBSD 5.1.5
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