[PATCH 2/6] hw/arm/exynos4210: Fix DMA initialization

[Guenter Roeck <linux@roeck-us.net>]

First parameter to exynos4210_get_irq() is not the SPI port number,
but the interrupt group number. Interrupt groups are 20 for mdma
and 21 for pdma. Interrupts are not inverted. Controllers support 32
events (pdma) or 31 events (mdma). Events must all be routed to a single
interrupt line. Set other parameters as documented in Exynos4210 datasheet,
section 8 (DMA controller).

Fixes: 59520dc65e ("hw/arm/exynos4210: Add DMA support for the Exynos4210")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 hw/arm/exynos4210.c | 24 +++++++++++++++++++-----
 1 file changed, 19 insertions(+), 5 deletions(-)

diff --git a/hw/arm/exynos4210.c b/hw/arm/exynos4210.c
index 77fbe1baab..c7b5c587b1 100644
--- a/hw/arm/exynos4210.c
+++ b/hw/arm/exynos4210.c
@@ -166,17 +166,31 @@ static uint64_t exynos4210_calc_affinity(int cpu)
     return (0x9 << ARM_AFF1_SHIFT) | cpu;
 }
 
-static void pl330_create(uint32_t base, qemu_irq irq, int nreq)
+static void pl330_create(uint32_t base, qemu_irq irq, int nreq, int nevents,
+                         int width)
 {
     SysBusDevice *busdev;
     DeviceState *dev;
+    int i;
 
     dev = qdev_create(NULL, "pl330");
+    qdev_prop_set_uint8(dev, "num_events", nevents);
+    qdev_prop_set_uint8(dev, "num_chnls",  8);
     qdev_prop_set_uint8(dev, "num_periph_req",  nreq);
+
+    qdev_prop_set_uint8(dev, "wr_cap", 4);
+    qdev_prop_set_uint8(dev, "wr_q_dep", 8);
+    qdev_prop_set_uint8(dev, "rd_cap", 4);
+    qdev_prop_set_uint8(dev, "rd_q_dep", 8);
+    qdev_prop_set_uint8(dev, "data_width", width);
+    qdev_prop_set_uint16(dev, "data_buffer_dep", width);
     qdev_init_nofail(dev);
     busdev = SYS_BUS_DEVICE(dev);
     sysbus_mmio_map(busdev, 0, base);
-    sysbus_connect_irq(busdev, 0, irq);
+    sysbus_connect_irq(busdev, 0, irq);         /* abort irq line */
+    for (i = 0; i < nevents; i++) {
+        sysbus_connect_irq(busdev, i + 1, irq); /* event irq lines */
+    }
 }
 
 static void exynos4210_realize(DeviceState *socdev, Error **errp)
@@ -432,11 +446,11 @@ static void exynos4210_realize(DeviceState *socdev, Error **errp)
 
     /*** DMA controllers ***/
     pl330_create(EXYNOS4210_PL330_BASE0_ADDR,
-                 qemu_irq_invert(s->irq_table[exynos4210_get_irq(35, 1)]), 32);
+                 s->irq_table[exynos4210_get_irq(21, 0)], 32, 32, 32);
     pl330_create(EXYNOS4210_PL330_BASE1_ADDR,
-                 qemu_irq_invert(s->irq_table[exynos4210_get_irq(36, 1)]), 32);
+                 s->irq_table[exynos4210_get_irq(21, 1)], 32, 32, 32);
     pl330_create(EXYNOS4210_PL330_BASE2_ADDR,
-                 qemu_irq_invert(s->irq_table[exynos4210_get_irq(34, 1)]), 1);
+                 s->irq_table[exynos4210_get_irq(20, 1)], 1, 31, 64);
 }
 
 static void exynos4210_class_init(ObjectClass *klass, void *data)
-- 
2.17.1