0001 Aeroflex Gaisler GRGPIO General Purpose I/O cores.
0002
0003 The GRGPIO GPIO core is available in the GRLIB VHDL IP core library.
0004
0005 Note: In the ordinary environment for the GRGPIO core, a Leon SPARC system,
0006 these properties are built from information in the AMBA plug&play.
0007
0008 Required properties:
0009
0010 - name : Should be "GAISLER_GPIO" or "01_01a"
0011
0012 - reg : Address and length of the register set for the device
0013
0014 - interrupts : Interrupt numbers for this device
0015
0016 Optional properties:
0017
0018 - nbits : The number of gpio lines. If not present driver assumes 32 lines.
0019
0020 - irqmap : An array with an index for each gpio line. An index is either a valid
0021 index into the interrupts property array, or 0xffffffff that indicates
0022 no irq for that line. Driver provides no interrupt support if not
0023 present.
0024
0025 For further information look in the documentation for the GLIB IP core library:
0026 http://www.gaisler.com/products/grlib/grip.pdf
