qemu-patch-raspberry4/hw
Peter Maydell c1e69e92ae hw/gpio/pl061: Make pullup/pulldown of outputs configurable
The PL061 GPIO does not itself include pullup or pulldown resistors
to set the value of a GPIO line treated as an output when it is
configured as an input (ie when the PL061 itself is not driving it).
In real hardware it is up to the board to add suitable pullups or
pulldowns.  Currently our implementation hardwires this to "outputs
pulled high", which is correct for some boards (eg the realview ones:
see figure 3-29 in the "RealView Platform Baseboard for ARM926EJ-S
User Guide" DUI0224I), but wrong for others.

In particular, the wiring in the 'virt' board and the gpio-pwr device
assumes that wires should be pulled low, because otherwise the
pull-to-high will trigger a shutdown or reset action.  (The only
reason this doesn't happen immediately on startup is due to another
bug in the PL061, where we don't assert the GPIOs to the correct
value on reset, but will do so as soon as the guest touches a
register and pl061_update() gets called.)

Add properties to the pl061 so the board can configure whether it
wants GPIO lines to have pullup, pulldown, or neither.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-09 16:09:12 +01:00
..
9pfs 9pfs: reduce latency of Twalk 2021-07-05 13:03:16 +02:00
acpi acpi/ged: fix reset cause 2021-07-03 03:12:35 -04:00
adc docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
alpha hw/alpha: Provide a PCI-ISA bridge device node 2021-06-28 07:27:32 -07:00
arm stm32vldiscovery: Add the STM32VLDISCOVERY Machine 2021-07-09 16:09:12 +01:00
audio hw/audio/sb16: Restrict I/O sampling rate range for command 41h/42h 2021-06-24 11:42:54 +02:00
avr hw/avr/atmega.c: use the avr51 cpu for atmega1280 2021-05-13 19:11:42 +02:00
block pc,pci,virtio: bugfixes, improvements 2021-07-09 14:30:01 +01:00
char hw/char/ibex_uart: Make the register layout private 2021-06-24 05:00:12 -07:00
core machine: add smp compound property 2021-07-06 08:33:51 +02:00
cpu cpu/core: Fix "help" of CPU core device types 2021-04-09 16:05:16 -04:00
cris Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
display configure, meson: convert virgl detection to meson 2021-07-06 08:33:51 +02:00
dma docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
gpio hw/gpio/pl061: Make pullup/pulldown of outputs configurable 2021-07-09 16:09:12 +01:00
hppa docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
hyperv qdev: Move softmmu properties to qdev-properties-system.h 2020-12-18 15:20:17 -05:00
i2c docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
i386 acpi: pc: revert back to v5.2 PCI slot enumeration 2021-07-03 03:12:35 -04:00
ide docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
input vhost: Distinguish errors in vhost_dev_get_config() 2021-06-30 13:18:42 +02:00
intc hw/intc/arm_gicv3_cpuif: Fix virtual irq number check in icv_[dir|eoir]_write 2021-07-09 16:09:12 +01:00
ipack Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
ipmi hw: Do not include qemu/log.h if it is not necessary 2021-05-02 17:24:50 +02:00
isa hw/block/fdc: Extract ISA floppy controllers to fdc-isa.c 2021-06-25 08:53:28 -04:00
m68k hw/m68k/q800: fix PROM checksum and MAC address storage 2021-07-02 17:35:08 +02:00
mem docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
microblaze Do not include sysemu/sysemu.h if it's not really necessary 2021-05-02 17:24:50 +02:00
mips hw/mips/jazz: Map the UART devices unconditionally 2021-07-02 17:35:08 +02:00
misc hw/arm: Add basic power management to raspi. 2021-07-02 11:48:36 +01:00
net pc,pci,virtio: bugfixes, improvements 2021-07-09 14:30:01 +01:00
nios2 Do not include cpu.h if it's not really necessary 2021-05-02 17:24:51 +02:00
nubus hw: Do not include hw/sysbus.h if it is not necessary 2021-05-02 17:24:50 +02:00
nvme hw/nvme: fix pin-based interrupt behavior (again) 2021-06-29 07:18:10 +02:00
nvram docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
openrisc Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
pci docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
pci-bridge Kconfig: Compile PXB for ARM_VIRT 2021-01-17 06:42:54 -05:00
pci-host pc,pci,virtio: bugfixes, improvements 2021-07-09 14:30:01 +01:00
pcmcia hw/pcmcia: Do not register PCMCIA type if not required 2021-05-02 17:24:50 +02:00
ppc ppc/pef.c: initialize cgs->ready in kvmppc_svm_init() 2021-06-03 18:10:31 +10:00
rdma pvrdma: Fix the ring init error flow (CVE-2021-3608) 2021-07-04 22:47:51 +03:00
remote multi-process: Initialize variables declared with g_auto* 2021-05-21 15:43:57 +01:00
riscv hw/riscv: OpenTitan: Connect the mtime and mtimecmp timer 2021-06-24 05:00:13 -07:00
rtc docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
rx hw/rx/rx-gdbsim: Do not accept invalid memory size 2021-05-03 10:07:41 +02:00
s390x virtio: disable ioeventfd for record/replay 2021-07-02 10:20:13 -04:00
scsi virtio: Clarify MR transaction optimization 2021-07-02 11:13:39 -04:00
sd docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
sh4 Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
smbios hw/smbios: support for type 41 (onboard devices extended information) 2021-05-14 10:26:18 -04:00
sparc hw/block/fdc: Extract SysBus floppy controllers to fdc-sysbus.c 2021-06-25 08:53:28 -04:00
sparc64 hw/block/fdc: Extract ISA floppy controllers to fdc-isa.c 2021-06-25 08:53:28 -04:00
ssi Trivial patches pull request 20210503 2021-05-05 13:52:00 +01:00
timer hw/timer: Initial commit of Ibex Timer 2021-06-24 05:00:12 -07:00
tpm docs: fix references to docs/specs/tpm.rst 2021-06-02 06:51:09 +02:00
tricore hw/tricore: Add testdevice for tests in tests/tcg/ 2021-05-18 09:36:21 +01:00
usb configure, meson: convert libusbredir detection to meson 2021-06-25 10:54:12 +02:00
vfio s390x/css: Add passthrough IRB 2021-06-21 08:48:21 +02:00
virtio virtio-pci: Changed return values for "notify", "device" and "isr" read. 2021-07-03 01:39:33 -04:00
watchdog docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
xen docs: fix references to docs/devel/tracing.rst 2021-06-02 06:51:09 +02:00
xenpv meson: convert hw/arch* 2020-08-21 06:30:33 -04:00
xtensa Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
Kconfig hw/nvme: move nvme emulation out of hw/block 2021-05-17 09:19:00 +02:00
meson.build hw/nvme: move nvme emulation out of hw/block 2021-05-17 09:19:00 +02:00