[Qemu-devel] [PATCH 2/2] hw/arm/vexpress: add SP810 to the vexpress

[Fabian Aggeler <aggelerf@ethz.ch>]

The SP810, which is present in the Versatile Express motherboards,
allows to set the timing reference to either REFCLK or TIMCLK.
QEMU currently sets the SP804 timer to 1MHz by default. To reflect
this, we set the TimerEn0Sel, TimerEn1Sel, TimerEn2Sel, and
TimerEn3Sel of the system control register (SCCTRL) to TIMCLK (1).

Signed-off-by: Fabian Aggeler <aggelerf@ethz.ch>
---
 hw/arm/vexpress.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/hw/arm/vexpress.c b/hw/arm/vexpress.c
index a88732c..b96c3fd 100644
--- a/hw/arm/vexpress.c
+++ b/hw/arm/vexpress.c
@@ -512,7 +512,7 @@ static pflash_t *ve_pflash_cfi01_register(hwaddr base, const char *name,
 static void vexpress_common_init(VEDBoardInfo *daughterboard,
                                  MachineState *machine)
 {
-    DeviceState *dev, *sysctl, *pl041;
+    DeviceState *dev, *sysctl, *pl041, *sp810;
     qemu_irq pic[64];
     uint32_t sys_id;
     DriveInfo *dinfo;
@@ -575,7 +575,14 @@ static void vexpress_common_init(VEDBoardInfo *daughterboard,
     qdev_init_nofail(sysctl);
     sysbus_mmio_map(SYS_BUS_DEVICE(sysctl), 0, map[VE_SYSREGS]);
 
-    /* VE_SP810: not modelled */
+    /* VE_SP810 */
+    sp810 = qdev_create(NULL, "arm_sp810");
+    /* SP804 is already running at 1MHz (TIMCLK) so SCCTRL TimerEnXSel=1 */
+    qdev_prop_set_uint32(sp810, "sc-ctrl", (1 << 15) | (1 << 17)
+                                          | (1 << 19) | (1 << 21));
+    qdev_init_nofail(sp810);
+    sysbus_mmio_map(SYS_BUS_DEVICE(sp810), 0, map[VE_SP810]);
+
     /* VE_SERIALPCI: not modelled */
 
     pl041 = qdev_create(NULL, "pl041");
-- 
1.8.3.2