arm/stm32f405: Fix realization of "stm32f2xx-adc" devices
authorMarkus Armbruster <armbru@redhat.com>
Tue, 9 Jun 2020 12:23:16 +0000 (14:23 +0200)
committerMarkus Armbruster <armbru@redhat.com>
Mon, 15 Jun 2020 19:35:52 +0000 (21:35 +0200)
commit2fb1f7d29932db2908bdaad0f03c326e800d5e62
treebc10d358dabc79bba01968ac18a743ca3a37d8d0
parente8c9e65816f5dbfe18ad3b2be938d0d8192d459a
arm/stm32f405: Fix realization of "stm32f2xx-adc" devices

stm32f405_soc_initfn() creates six such devices, but
stm32f405_soc_realize() realizes only one.  Affects machine
netduinoplus2.

In theory, a device becomes real only on realize.  In practice, the
transition from unreal to real is a fuzzy one.  The work to make a
device real can be spread between realize methods (fine),
instance_init methods (wrong), and board code wiring up the device
(fine as long as it effectively happens on realize).  Depending on
what exactly is done where, a device can work even when we neglect
to realize it.

The five unrealized devices appear to stay unreal: neither MMIO nor
IRQ get wired up.

Fix stm32f405_soc_realize() to realize and wire up 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 0000000040012100/00000000000000ff
       dev: stm32f2xx-adc, id ""
         gpio-out "sysbus-irq" 1
    -    mmio ffffffffffffffff/00000000000000ff
    +    mmio 0000000040012200/00000000000000ff
       dev: stm32f2xx-adc, id ""
         gpio-out "sysbus-irq" 1
    -    mmio ffffffffffffffff/00000000000000ff
    +    mmio 0000000040012300/00000000000000ff
       dev: stm32f2xx-adc, id ""
         gpio-out "sysbus-irq" 1
    -    mmio 0000000040012000/00000000000000ff
    +    mmio 0000000040012400/00000000000000ff
       dev: stm32f2xx-adc, id ""
         gpio-out "sysbus-irq" 1
    -    mmio ffffffffffffffff/00000000000000ff
    +    mmio 0000000040012500/00000000000000ff
       dev: armv7m, id ""

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>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200609122339.937862-2-armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
hw/arm/stm32f405_soc.c