diff mbox series

[01/24] arm/stm32f405: Fix realization of "stm32f2xx-adc" devices

Message ID 20200518050408.4579-2-armbru@redhat.com
State New
Headers show
Series Fixes around device realization | expand

Commit Message

Markus Armbruster May 18, 2020, 5:03 a.m. UTC 
stm32f405_soc_initfn() creates six such devices, but
stm32f405_soc_realize() realizes only one.  Affects machine
netduinoplus2.

I wonder how this ever worked.  If the "device becomes real only on
realize" thing actually works, then we've always been missing five of
six such devices, yet nobody noticed.

Fix stm32f405_soc_realize() to realize all six.  Visible in "info
qtree":

     bus: main-system-bus
       type System
       dev: stm32f405-soc, id ""
         cpu-type = "cortex-m4-arm-cpu"
       dev: stm32f2xx-adc, id ""
         gpio-out "sysbus-irq" 1
    -    mmio ffffffffffffffff/00000000000000ff
    +    mmio 0000000040012000/00000000000000ff
       dev: stm32f2xx-adc, id ""
         gpio-out "sysbus-irq" 1
    -    mmio ffffffffffffffff/00000000000000ff
    +    mmio 0000000040012000/00000000000000ff
       dev: stm32f2xx-adc, id ""
         gpio-out "sysbus-irq" 1
    -    mmio ffffffffffffffff/00000000000000ff
    +    mmio 0000000040012000/00000000000000ff
       dev: stm32f2xx-adc, id ""
         gpio-out "sysbus-irq" 1
    -    mmio ffffffffffffffff/00000000000000ff
    +    mmio 0000000040012000/00000000000000ff
       dev: stm32f2xx-adc, id ""
         gpio-out "sysbus-irq" 1
         mmio 0000000040012000/00000000000000ff
       dev: stm32f2xx-adc, id ""
         gpio-out "sysbus-irq" 1
    -    mmio ffffffffffffffff/00000000000000ff
    +    mmio 0000000040012000/00000000000000ff
       dev: armv7m, id ""

The mmio addresses look suspicious.

Fixes: 529fc5fd3e18ace8f739afd02dc0953354f39442
Cc: Alistair Francis <alistair@alistair23.me>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: qemu-arm@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 hw/arm/stm32f405_soc.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)
diff mbox series

Patch

diff --git a/hw/arm/stm32f405_soc.c b/hw/arm/stm32f405_soc.c
index 4f10ce6176..4649502711 100644
--- a/hw/arm/stm32f405_soc.c
+++ b/hw/arm/stm32f405_soc.c
@@ -185,16 +185,18 @@  static void stm32f405_soc_realize(DeviceState *dev_soc, Error **errp)
     qdev_connect_gpio_out(DEVICE(&s->adc_irqs), 0,
                           qdev_get_gpio_in(armv7m, ADC_IRQ));
 
-    dev = DEVICE(&(s->adc[i]));
-    object_property_set_bool(OBJECT(&s->adc[i]), true, "realized", &err);
-    if (err != NULL) {
-        error_propagate(errp, err);
-        return;
+    for (i = 0; i < STM_NUM_ADCS; i++) {
+        dev = DEVICE(&(s->adc[i]));
+        object_property_set_bool(OBJECT(&s->adc[i]), true, "realized", &err);
+        if (err != NULL) {
+            error_propagate(errp, err);
+            return;
+        }
+        busdev = SYS_BUS_DEVICE(dev);
+        sysbus_mmio_map(busdev, 0, ADC_ADDR);
+        sysbus_connect_irq(busdev, 0,
+                           qdev_get_gpio_in(DEVICE(&s->adc_irqs), i));
     }
-    busdev = SYS_BUS_DEVICE(dev);
-    sysbus_mmio_map(busdev, 0, ADC_ADDR);
-    sysbus_connect_irq(busdev, 0,
-                       qdev_get_gpio_in(DEVICE(&s->adc_irqs), i));
 
     /* SPI devices */
     for (i = 0; i < STM_NUM_SPIS; i++) {