On Tue, Dec 23, 2025 at 5:42 PM Kane Chen <[email protected]> wrote:
>
> From: Kane-Chen-AS <[email protected]>
>
> Connect the ADC device to AST1700 model.
>
> Signed-off-by: Kane-Chen-AS <[email protected]>
> Reviewed-by: Cédric Le Goater <[email protected]>

Reviewed-by: Nabih Estefan <[email protected]>
Tested-by: Nabih Estefan <[email protected]>


> ---
>  include/hw/arm/aspeed_ast1700.h |  2 ++
>  hw/arm/aspeed_ast1700.c         | 14 ++++++++++++++
>  hw/arm/aspeed_ast27x0.c         |  5 +++++
>  3 files changed, 21 insertions(+)
>
> diff --git a/include/hw/arm/aspeed_ast1700.h b/include/hw/arm/aspeed_ast1700.h
> index 5b120dd11a..0c1216c4ba 100644
> --- a/include/hw/arm/aspeed_ast1700.h
> +++ b/include/hw/arm/aspeed_ast1700.h
> @@ -9,6 +9,7 @@
>  #define ASPEED_AST1700_H
>
>  #include "hw/sysbus.h"
> +#include "hw/adc/aspeed_adc.h"
>  #include "hw/misc/aspeed_ltpi.h"
>  #include "hw/ssi/aspeed_smc.h"
>  #include "hw/char/serial-mm.h"
> @@ -27,6 +28,7 @@ struct AspeedAST1700SoCState {
>      SerialMM uart;
>      MemoryRegion sram;
>      AspeedSMCState spi;
> +    AspeedADCState adc;
>  };
>
>  #endif /* ASPEED_AST1700_H */
> diff --git a/hw/arm/aspeed_ast1700.c b/hw/arm/aspeed_ast1700.c
> index fc09bb1aed..e4d206045f 100644
> --- a/hw/arm/aspeed_ast1700.c
> +++ b/hw/arm/aspeed_ast1700.c
> @@ -19,6 +19,7 @@
>  enum {
>      ASPEED_AST1700_DEV_SPI0,
>      ASPEED_AST1700_DEV_SRAM,
> +    ASPEED_AST1700_DEV_ADC,
>      ASPEED_AST1700_DEV_UART12,
>      ASPEED_AST1700_DEV_LTPI_CTRL,
>      ASPEED_AST1700_DEV_SPI0_MEM,
> @@ -27,6 +28,7 @@ enum {
>  static const hwaddr aspeed_ast1700_io_memmap[] = {
>      [ASPEED_AST1700_DEV_SPI0]      =  0x00030000,
>      [ASPEED_AST1700_DEV_SRAM]      =  0x00BC0000,
> +    [ASPEED_AST1700_DEV_ADC]       =  0x00C00000,
>      [ASPEED_AST1700_DEV_UART12]    =  0x00C33B00,
>      [ASPEED_AST1700_DEV_LTPI_CTRL] =  0x00C34000,
>      [ASPEED_AST1700_DEV_SPI0_MEM]  =  0x04000000,
> @@ -76,6 +78,14 @@ static void aspeed_ast1700_realize(DeviceState *dev, Error 
> **errp)
>                          
> aspeed_ast1700_io_memmap[ASPEED_AST1700_DEV_SPI0_MEM],
>                          sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->spi), 1));
>
> +    /* ADC */
> +    if (!sysbus_realize(SYS_BUS_DEVICE(&s->adc), errp)) {
> +        return;
> +    }
> +    memory_region_add_subregion(&s->iomem,
> +                        aspeed_ast1700_io_memmap[ASPEED_AST1700_DEV_ADC],
> +                        sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->adc), 0));
> +
>      /* LTPI controller */
>      if (!sysbus_realize(SYS_BUS_DEVICE(&s->ltpi), errp)) {
>          return;
> @@ -97,6 +107,10 @@ static void aspeed_ast1700_instance_init(Object *obj)
>      object_initialize_child(obj, "ioexp-spi[*]", &s->spi,
>                              "aspeed.spi0-ast2700");
>
> +    /* ADC */
> +    object_initialize_child(obj, "ioexp-adc[*]", &s->adc,
> +                            "aspeed.adc-ast2700");
> +
>      /* LTPI controller */
>      object_initialize_child(obj, "ltpi-ctrl",
>                              &s->ltpi, TYPE_ASPEED_LTPI);
> diff --git a/hw/arm/aspeed_ast27x0.c b/hw/arm/aspeed_ast27x0.c
> index f2418e0e45..84ff8b5557 100644
> --- a/hw/arm/aspeed_ast27x0.c
> +++ b/hw/arm/aspeed_ast27x0.c
> @@ -1117,6 +1117,11 @@ static void aspeed_soc_ast2700_realize(DeviceState 
> *dev, Error **errp)
>              sysbus_connect_irq(SYS_BUS_DEVICE(&a->intcioexp[i]), j,
>                                 irq);
>          }
> +
> +        /* ADC */
> +        sysbus_connect_irq(SYS_BUS_DEVICE(&s->ioexp[i].adc), 0,
> +                           aspeed_soc_ast2700_get_irq(s, ASPEED_DEV_ADC));
> +
>      }
>
>      aspeed_mmio_map_unimplemented(s->memory, SYS_BUS_DEVICE(&s->dpmcu),
> --
> 2.43.0
>

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