On Tue, Dec 23, 2025 at 5:42 PM Kane Chen <kane_chen@aspeedtech.com> wrote:
>
> From: Kane-Chen-AS <kane_chen@aspeedtech.com>
>
> Connect the SPI device to AST1700 model.
>
> Signed-off-by: Kane-Chen-AS <kane_chen@aspeedtech.com>
> Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Nabih Estefan <nabihestefan@google.com>
Tested-by: Nabih Estefan <nabihestefan@google.com>
> ---
> include/hw/arm/aspeed_ast1700.h | 2 ++
> hw/arm/aspeed_ast1700.c | 22 ++++++++++++++++++++++
> 2 files changed, 24 insertions(+)
>
> diff --git a/include/hw/arm/aspeed_ast1700.h b/include/hw/arm/aspeed_ast1700.h
> index 23588f7a81..5b120dd11a 100644
> --- a/include/hw/arm/aspeed_ast1700.h
> +++ b/include/hw/arm/aspeed_ast1700.h
> @@ -10,6 +10,7 @@
>
> #include "hw/sysbus.h"
> #include "hw/misc/aspeed_ltpi.h"
> +#include "hw/ssi/aspeed_smc.h"
> #include "hw/char/serial-mm.h"
>
> #define TYPE_ASPEED_AST1700 "aspeed.ast1700"
> @@ -25,6 +26,7 @@ struct AspeedAST1700SoCState {
> AspeedLTPIState ltpi;
> SerialMM uart;
> MemoryRegion sram;
> + AspeedSMCState spi;
> };
>
> #endif /* ASPEED_AST1700_H */
> diff --git a/hw/arm/aspeed_ast1700.c b/hw/arm/aspeed_ast1700.c
> index cb07d94054..fc09bb1aed 100644
> --- a/hw/arm/aspeed_ast1700.c
> +++ b/hw/arm/aspeed_ast1700.c
> @@ -17,15 +17,19 @@
> #define AST1700_SOC_SRAM_SIZE 0x00040000
>
> enum {
> + ASPEED_AST1700_DEV_SPI0,
> ASPEED_AST1700_DEV_SRAM,
> ASPEED_AST1700_DEV_UART12,
> ASPEED_AST1700_DEV_LTPI_CTRL,
> + ASPEED_AST1700_DEV_SPI0_MEM,
> };
>
> static const hwaddr aspeed_ast1700_io_memmap[] = {
> + [ASPEED_AST1700_DEV_SPI0] = 0x00030000,
> [ASPEED_AST1700_DEV_SRAM] = 0x00BC0000,
> [ASPEED_AST1700_DEV_UART12] = 0x00C33B00,
> [ASPEED_AST1700_DEV_LTPI_CTRL] = 0x00C34000,
> + [ASPEED_AST1700_DEV_SPI0_MEM] = 0x04000000,
> };
>
> static void aspeed_ast1700_realize(DeviceState *dev, Error **errp)
> @@ -58,6 +62,20 @@ static void aspeed_ast1700_realize(DeviceState *dev, Error **errp)
> aspeed_ast1700_io_memmap[ASPEED_AST1700_DEV_UART12],
> sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->uart), 0));
>
> + /* SPI */
> + object_property_set_link(OBJECT(&s->spi), "dram",
> + OBJECT(&s->iomem), errp);
> + if (!sysbus_realize(SYS_BUS_DEVICE(&s->spi), errp)) {
> + return;
> + }
> + memory_region_add_subregion(&s->iomem,
> + aspeed_ast1700_io_memmap[ASPEED_AST1700_DEV_SPI0],
> + sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->spi), 0));
> +
> + memory_region_add_subregion(&s->iomem,
> + aspeed_ast1700_io_memmap[ASPEED_AST1700_DEV_SPI0_MEM],
> + sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->spi), 1));
> +
> /* LTPI controller */
> if (!sysbus_realize(SYS_BUS_DEVICE(&s->ltpi), errp)) {
> return;
> @@ -75,6 +93,10 @@ static void aspeed_ast1700_instance_init(Object *obj)
> object_initialize_child(obj, "uart[*]", &s->uart,
> TYPE_SERIAL_MM);
>
> + /* SPI */
> + object_initialize_child(obj, "ioexp-spi[*]", &s->spi,
> + "aspeed.spi0-ast2700");
> +
> /* LTPI controller */
> object_initialize_child(obj, "ltpi-ctrl",
> &s->ltpi, TYPE_ASPEED_LTPI);
> --
> 2.43.0
>