Re: [PATCH v1 9/9] hw/arm/xlnx-versal-virt: Connect mt35xu01g flashes to the OSPI

[Edgar E. Iglesias]

On Wed, Nov 17, 2021 at 02:18:41PM +0000, Francisco Iglesias wrote:
> Connect Micron Xccela mt35xu01g flashes to the OSPI flash memory
> controller.
> 
> Signed-off-by: Francisco Iglesias <francisco.iglesias@xilinx.com>
> ---
>  hw/arm/xlnx-versal-virt.c | 23 +++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
> 
> diff --git a/hw/arm/xlnx-versal-virt.c b/hw/arm/xlnx-versal-virt.c
> index d2f55e29b6..f2f12a781e 100644
> --- a/hw/arm/xlnx-versal-virt.c
> +++ b/hw/arm/xlnx-versal-virt.c
> @@ -25,6 +25,8 @@
>  #define TYPE_XLNX_VERSAL_VIRT_MACHINE MACHINE_TYPE_NAME("xlnx-versal-virt")
>  OBJECT_DECLARE_SIMPLE_TYPE(VersalVirt, XLNX_VERSAL_VIRT_MACHINE)
>  
> +#define XLNX_VERSAL_NUM_OSPI_FLASH 4
> +
>  struct VersalVirt {
>      MachineState parent_obj;
>  
> @@ -690,6 +692,27 @@ static void versal_virt_init(MachineState *machine)
>              exit(EXIT_FAILURE);
>          }
>      }
> +
> +    for (i = 0; i < XLNX_VERSAL_NUM_OSPI_FLASH; i++) {
> +        BusState *spi_bus;
> +        DeviceState *flash_dev;
> +        qemu_irq cs_line;
> +        DriveInfo *dinfo = drive_get_next(IF_MTD);

There's a patch from Markus on the list that is getting rid of
drive_get_next(), we'll need to merge with that at some point...




> +
> +        spi_bus = qdev_get_child_bus(DEVICE(&s->soc.pmc.iou.ospi), "spi0");
> +
> +        flash_dev = qdev_new("mt35xu01g");
> +        if (dinfo) {
> +            qdev_prop_set_drive_err(flash_dev, "drive",
> +                                    blk_by_legacy_dinfo(dinfo), 
> &error_fatal);
> +        }
> +        qdev_realize_and_unref(flash_dev, spi_bus, &error_fatal);
> +
> +        cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
> +
> +        sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.pmc.iou.ospi),
> +                           i + 1, cs_line);
> +    }
>  }
>  
>  static void versal_virt_machine_instance_init(Object *obj)
> -- 
> 2.11.0
>