eNET: Fix eNET Interrupt Setup for Linux

Fix minor issues with the configuration of the hardware interrupts for
Linux when booting the eNET board

diff --git a/board/eNET/eNET.c b/board/eNET/eNET.c
index b2f349f..3b74ce9 100644 (file)
--- a/board/eNET/eNET.c
+++ b/board/eNET/eNET.c
@@ -191,10 +191,18 @@ void setup_pcat_compatibility()
         */
        writew(0x0000,&sc520_mmcr->intpinpol);
 
-       /* Set PIT 0 -> IRQ0, RTC -> IRQ8, FP error -> IRQ13 */
+       /*
+        * PIT 0 -> IRQ0
+        * RTC -> IRQ8
+        * FP error -> IRQ13
+        * UART1 -> IRQ4
+        * UART2 -> IRQ3
+        */
        writeb(SC520_IRQ0, &sc520_mmcr->pit_int_map[0]);
        writeb(SC520_IRQ8, &sc520_mmcr->rtcmap);
        writeb(SC520_IRQ13, &sc520_mmcr->ferrmap);
+       writeb(SC520_IRQ4, &sc520_mmcr->uart_int_map[0]);
+       writeb(SC520_IRQ3, &sc520_mmcr->uart_int_map[1]);
 
        /* Disable all other interrupt sources */
        writeb(SC520_IRQ_DISABLED, &sc520_mmcr->gp_tmr_int_map[0]);
@@ -202,11 +210,6 @@ void setup_pcat_compatibility()
        writeb(SC520_IRQ_DISABLED, &sc520_mmcr->gp_tmr_int_map[2]);
        writeb(SC520_IRQ_DISABLED, &sc520_mmcr->pit_int_map[1]);
        writeb(SC520_IRQ_DISABLED, &sc520_mmcr->pit_int_map[2]);
-       writeb(SC520_IRQ_DISABLED, &sc520_mmcr->pci_int_map[0]);        /* disable PCI INT A */
-       writeb(SC520_IRQ_DISABLED, &sc520_mmcr->pci_int_map[1]);        /* disable PCI INT B */
-       writeb(SC520_IRQ_DISABLED, &sc520_mmcr->pci_int_map[2]);        /* disable PCI INT C */
-       writeb(SC520_IRQ_DISABLED, &sc520_mmcr->pci_int_map[3]);        /* disable PCI INT D */
-       writeb(SC520_IRQ_DISABLED, &sc520_mmcr->dmabcintmap);           /* disable DMA INT */
        writeb(SC520_IRQ_DISABLED, &sc520_mmcr->ssimap);
        writeb(SC520_IRQ_DISABLED, &sc520_mmcr->wdtmap);
        writeb(SC520_IRQ_DISABLED, &sc520_mmcr->wpvmap);