| Kyle Swenson | 8d8f654 | 2021-03-15 11:02:55 -0600 | [diff] [blame^] | 1 | Aeroflex Gaisler GRGPIO General Purpose I/O cores. |
| 2 | |
| 3 | The GRGPIO GPIO core is available in the GRLIB VHDL IP core library. |
| 4 | |
| 5 | Note: In the ordinary environment for the GRGPIO core, a Leon SPARC system, |
| 6 | these properties are built from information in the AMBA plug&play. |
| 7 | |
| 8 | Required properties: |
| 9 | |
| 10 | - name : Should be "GAISLER_GPIO" or "01_01a" |
| 11 | |
| 12 | - reg : Address and length of the register set for the device |
| 13 | |
| 14 | - interrupts : Interrupt numbers for this device |
| 15 | |
| 16 | Optional properties: |
| 17 | |
| 18 | - nbits : The number of gpio lines. If not present driver assumes 32 lines. |
| 19 | |
| 20 | - irqmap : An array with an index for each gpio line. An index is either a valid |
| 21 | index into the interrupts property array, or 0xffffffff that indicates |
| 22 | no irq for that line. Driver provides no interrupt support if not |
| 23 | present. |
| 24 | |
| 25 | For further information look in the documentation for the GLIB IP core library: |
| 26 | http://www.gaisler.com/products/grlib/grip.pdf |