Re: [PATCH v2 1/6] hw/misc: Add MPFS system reset support

[Alistair Francis <alistair23@gmail.com>]

On Tue, Feb 25, 2025 at 10:55 AM Sebastian Huber
<sebastian.huber@embedded-brains.de> wrote:
>
> Signed-off-by: Sebastian Huber <sebastian.huber@embedded-brains.de>

Acked-by: Alistair Francis <alistair.francis@wdc.com>

Alistair

> ---
>  hw/misc/mchp_pfsoc_sysreg.c | 7 +++++++
>  1 file changed, 7 insertions(+)
>
> diff --git a/hw/misc/mchp_pfsoc_sysreg.c b/hw/misc/mchp_pfsoc_sysreg.c
> index 7876fe0c5b..08196525aa 100644
> --- a/hw/misc/mchp_pfsoc_sysreg.c
> +++ b/hw/misc/mchp_pfsoc_sysreg.c
> @@ -27,7 +27,9 @@
>  #include "hw/irq.h"
>  #include "hw/sysbus.h"
>  #include "hw/misc/mchp_pfsoc_sysreg.h"
> +#include "system/runstate.h"
>
> +#define MSS_RESET_CR    0x18
>  #define ENVM_CR         0xb8
>  #define MESSAGE_INT     0x118c
>
> @@ -56,6 +58,11 @@ static void mchp_pfsoc_sysreg_write(void *opaque, hwaddr offset,
>  {
>      MchpPfSoCSysregState *s = opaque;
>      switch (offset) {
> +    case MSS_RESET_CR:
> +        if (value == 0xdead) {
> +            qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
> +        }
> +        break;
>      case MESSAGE_INT:
>          qemu_irq_lower(s->irq);
>          break;
> --
> 2.43.0
>