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