[PATCH] Align Raspberry Pi DMA interrupts with Linux DTS

[Andrey Makarov]

All Raspberry Pi models 1-3 (based on bcm2835) have
Linux device tree (arch/arm/boot/dts/bcm2835-common.dtsi +25):

    /* dma channel 11-14 share one irq */

which mismatched the Qemu model.
In this patch channels 0--10 and 11--14 are handled separately.

Signed-off-by: Andrey Makarov <andrey.makarov@auriga.com>
---
 hw/arm/bcm2835_peripherals.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/hw/arm/bcm2835_peripherals.c b/hw/arm/bcm2835_peripherals.c
index 48538c9360..3d808b0e31 100644
--- a/hw/arm/bcm2835_peripherals.c
+++ b/hw/arm/bcm2835_peripherals.c
@@ -322,13 +322,21 @@ static void bcm2835_peripherals_realize(DeviceState *dev, 
Error **errp)
     memory_region_add_subregion(&s->peri_mr, DMA15_OFFSET,
                 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->dma), 1));
 
-    for (n = 0; n <= 12; n++) {
+    for (n = 0; n <= 10; n++) {
         sysbus_connect_irq(SYS_BUS_DEVICE(&s->dma), n,
                            qdev_get_gpio_in_named(DEVICE(&s->ic),
                                                   BCM2835_IC_GPU_IRQ,
                                                   INTERRUPT_DMA0 + n));
     }
 
+    /* According to DTS, dma channels 11-14 share one irq */
+    for (n = 11; n <= 14; n++) {
+        sysbus_connect_irq(SYS_BUS_DEVICE(&s->dma), n,
+                           qdev_get_gpio_in_named(DEVICE(&s->ic),
+                                                  BCM2835_IC_GPU_IRQ,
+                                                  INTERRUPT_DMA0 + 11));
+    }
+
     /* THERMAL */
     if (!sysbus_realize(SYS_BUS_DEVICE(&s->thermal), errp)) {
         return;
-- 
2.30.2