Re: [PATCH v2 2/2] hw/arm/aspeed_ast2600: create i3c instance

["Cédric Le Goater" <clg@kaod.org>]

On 1/10/22 08:21, Troy Lee wrote:
> This patch includes i3c instance in ast2600 soc.
> 
> v2: Rebase to mainline QEMU
> 
> Signed-off-by: Troy Lee <troy_lee@aspeedtech.com>
> ---
>   hw/arm/aspeed_ast2600.c     | 19 ++++++++++++++++++-
>   include/hw/arm/aspeed_soc.h |  3 +++
>   2 files changed, 21 insertions(+), 1 deletion(-)
> 
> diff --git a/hw/arm/aspeed_ast2600.c b/hw/arm/aspeed_ast2600.c
> index e33483fb5d..36aa31601a 100644
> --- a/hw/arm/aspeed_ast2600.c
> +++ b/hw/arm/aspeed_ast2600.c
> @@ -29,7 +29,7 @@ static const hwaddr aspeed_soc_ast2600_memmap[] = {
>       [ASPEED_DEV_PWM]       = 0x1E610000,
>       [ASPEED_DEV_FMC]       = 0x1E620000,
>       [ASPEED_DEV_SPI1]      = 0x1E630000,
> -    [ASPEED_DEV_SPI2]      = 0x1E641000,
> +    [ASPEED_DEV_SPI2]      = 0x1E631000,

Indeed ! But this belongs to another patch fixing the value.


>       [ASPEED_DEV_EHCI1]     = 0x1E6A1000,
>       [ASPEED_DEV_EHCI2]     = 0x1E6A3000,
>       [ASPEED_DEV_MII1]      = 0x1E650000,
> @@ -61,6 +61,7 @@ static const hwaddr aspeed_soc_ast2600_memmap[] = {
>       [ASPEED_DEV_UART1]     = 0x1E783000,
>       [ASPEED_DEV_UART5]     = 0x1E784000,
>       [ASPEED_DEV_VUART]     = 0x1E787000,
> +    [ASPEED_DEV_I3C]       = 0x1E7A0000,
>       [ASPEED_DEV_SDRAM]     = 0x80000000,
>   };
>   
> @@ -108,6 +109,7 @@ static const int aspeed_soc_ast2600_irqmap[] = {
>       [ASPEED_DEV_ETH4]      = 33,
>       [ASPEED_DEV_KCS]       = 138,   /* 138 -> 142 */
>       [ASPEED_DEV_DP]        = 62,
> +    [ASPEED_DEV_I3C]       = 102,   /* 102 -> 107 */
>   };
>   
>   static qemu_irq aspeed_soc_get_irq(AspeedSoCState *s, int ctrl)
> @@ -223,6 +225,8 @@ static void aspeed_soc_ast2600_init(Object *obj)
>   
>       snprintf(typename, sizeof(typename), "aspeed.hace-%s", socname);
>       object_initialize_child(obj, "hace", &s->hace, typename);
> +
> +    object_initialize_child(obj, "i3c", &s->i3c, TYPE_ASPEED_I3C);
>   }
>   
>   /*
> @@ -523,6 +527,19 @@ static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp)
>       sysbus_mmio_map(SYS_BUS_DEVICE(&s->hace), 0, sc->memmap[ASPEED_DEV_HACE]);
>       sysbus_connect_irq(SYS_BUS_DEVICE(&s->hace), 0,
>                          aspeed_soc_get_irq(s, ASPEED_DEV_HACE));
> +    /* I3C */
> +    if (!sysbus_realize(SYS_BUS_DEVICE(&s->i3c), errp)) {
> +        return;
> +    }
> +    sysbus_mmio_map(SYS_BUS_DEVICE(&s->i3c), 0, sc->memmap[ASPEED_DEV_I3C]);
> +    sysbus_connect_irq(SYS_BUS_DEVICE(&s->i3c), 0,
> +                       aspeed_soc_get_irq(s, ASPEED_DEV_I3C));

The controller device does not have an IRQ line.

Thanks,

C.



> +    for (i = 0; i < ASPEED_I3C_NR_DEVICES; i++) {
> +        qemu_irq irq = qdev_get_gpio_in(DEVICE(&s->a7mpcore),
> +                                        sc->irqmap[ASPEED_DEV_I3C] + i);
> +        /* The AST2600 I3C controller has one IRQ per bus. */
> +        sysbus_connect_irq(SYS_BUS_DEVICE(&s->i3c.devices[i]), 0, irq);
> +    }
>   }
>   
>   static void aspeed_soc_ast2600_class_init(ObjectClass *oc, void *data)
> diff --git a/include/hw/arm/aspeed_soc.h b/include/hw/arm/aspeed_soc.h
> index 18fb7eed46..cae9906684 100644
> --- a/include/hw/arm/aspeed_soc.h
> +++ b/include/hw/arm/aspeed_soc.h
> @@ -21,6 +21,7 @@
>   #include "hw/timer/aspeed_timer.h"
>   #include "hw/rtc/aspeed_rtc.h"
>   #include "hw/i2c/aspeed_i2c.h"
> +#include "hw/misc/aspeed_i3c.h"
>   #include "hw/ssi/aspeed_smc.h"
>   #include "hw/misc/aspeed_hace.h"
>   #include "hw/watchdog/wdt_aspeed.h"
> @@ -51,6 +52,7 @@ struct AspeedSoCState {
>       AspeedRtcState rtc;
>       AspeedTimerCtrlState timerctrl;
>       AspeedI2CState i2c;
> +    AspeedI3CState i3c;
>       AspeedSCUState scu;
>       AspeedHACEState hace;
>       AspeedXDMAState xdma;
> @@ -141,6 +143,7 @@ enum {
>       ASPEED_DEV_HACE,
>       ASPEED_DEV_DPMCU,
>       ASPEED_DEV_DP,
> +    ASPEED_DEV_I3C,
>   };
>   
>   #endif /* ASPEED_SOC_H */
>