Re: [PATCH v4 11/15] hw/misc: Add Beckhoff CCAT device

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

On 11/11/25 11:28, Corvin Köhne wrote:
> From: YannickV <Y.Vossen@beckhoff.com>
> 
> This adds the Beckhoff Communication Controller (CCAT). The information
> block, EEPROM interface and DMA controller are currently  implemented.
> 
> The EEPROM provides production information for Beckhoff Devices.
> An EEPORM binary must therefor be handed over. It should be aligned to
> a power of two. If no EEPROM binary is handed over an empty EEPROM of
> size 4096 is initialized.
> 
> This device is needed for the Beckhoff CX7200 board emulation.
> 
> Signed-off-by: YannickV <Y.Vossen@beckhoff.com>
> ---
>   hw/misc/Kconfig         |   3 +
>   hw/misc/beckhoff_ccat.c | 338 ++++++++++++++++++++++++++++++++++++++++
>   hw/misc/meson.build     |   1 +
>   3 files changed, 342 insertions(+)
>   create mode 100644 hw/misc/beckhoff_ccat.c


> +#define TYPE_BECKHOFF_CCAT "beckhoff-ccat"
> +OBJECT_DECLARE_SIMPLE_TYPE(BeckhoffCcat, BECKHOFF_CCAT)
> +
> +#define MAX_NUM_SLOTS 32
> +#define CCAT_FUNCTION_BLOCK_SIZE 16
> +
> +#define CCAT_EEPROM_OFFSET 0x100
> +#define CCAT_DMA_OFFSET 0x8000
> +
> +#define CCAT_MEM_SIZE 0xFFFF

Likely

   #define CCAT_MEM_SIZE (64 * KiB)

> +#define CCAT_DMA_SIZE 0x800
> +#define CCAT_EEPROM_SIZE 0x20
> +
> +#define EEPROM_MEMORY_SIZE 0x1000