Re: [PATCH v2 5/8] xen/arm: platforms: Add NXP S32CC platform code

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Mon, 30 Sep 2024, Andrei Cherechesu (OSS) wrote:
> From: Andrei Cherechesu <andrei.cherechesu@xxxxxxx>
> 
> Add code for NXP S32CC platforms (S32G2, S32G3, S32R45).
> 
> S32CC platforms use the NXP LINFlexD UART driver for
> console by default, and rely on Dom0 having access to
> SCMI services for system-level resources from firmware
> at EL3.
> 
> Platform-related quirks will be addressed in following
> commits.
> 
> Signed-off-by: Andrei Cherechesu <andrei.cherechesu@xxxxxxx>

Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>


> ---
>  xen/arch/arm/platforms/Kconfig  | 11 +++++++++++
>  xen/arch/arm/platforms/Makefile |  1 +
>  xen/arch/arm/platforms/s32cc.c  | 32 ++++++++++++++++++++++++++++++++
>  3 files changed, 44 insertions(+)
>  create mode 100644 xen/arch/arm/platforms/s32cc.c
> 
> diff --git a/xen/arch/arm/platforms/Kconfig b/xen/arch/arm/platforms/Kconfig
> index 76f7e76b1b..9837cba475 100644
> --- a/xen/arch/arm/platforms/Kconfig
> +++ b/xen/arch/arm/platforms/Kconfig
> @@ -37,6 +37,14 @@ config MPSOC
>       help
>       Enable all the required drivers for Xilinx Ultrascale+ MPSoC
>  
> +config S32CC
> +     bool "NXP S32CC platforms support"
> +     depends on ARM_64
> +     select HAS_LINFLEX
> +     select SCMI_SMC
> +     help
> +     Enable all the required drivers for NXP S32CC platforms
> +
>  config NO_PLAT
>       bool "No Platforms"
>       help
> @@ -56,3 +64,6 @@ config MPSOC_PLATFORM
>       bool
>       default (ALL64_PLAT || MPSOC)
>  
> +config S32CC_PLATFORM
> +     bool
> +     default (ALL64_PLAT || S32CC)
> diff --git a/xen/arch/arm/platforms/Makefile b/xen/arch/arm/platforms/Makefile
> index bec6e55d1f..2c304b964d 100644
> --- a/xen/arch/arm/platforms/Makefile
> +++ b/xen/arch/arm/platforms/Makefile
> @@ -10,5 +10,6 @@ obj-$(CONFIG_ALL64_PLAT) += thunderx.o
>  obj-$(CONFIG_ALL64_PLAT) += xgene-storm.o
>  obj-$(CONFIG_ALL64_PLAT) += brcm-raspberry-pi.o
>  obj-$(CONFIG_ALL64_PLAT) += imx8qm.o
> +obj-$(CONFIG_S32CC_PLATFORM)  += s32cc.o
>  obj-$(CONFIG_MPSOC_PLATFORM)  += xilinx-zynqmp.o
>  obj-$(CONFIG_MPSOC_PLATFORM)  += xilinx-zynqmp-eemi.o
> diff --git a/xen/arch/arm/platforms/s32cc.c b/xen/arch/arm/platforms/s32cc.c
> new file mode 100644
> index 0000000000..f99a2d56f6
> --- /dev/null
> +++ b/xen/arch/arm/platforms/s32cc.c
> @@ -0,0 +1,32 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +/*
> + * xen/arch/arm/platforms/s32cc.c
> + *
> + * NXP S32CC Platform-specific settings
> + *
> + * Andrei Cherechesu <andrei.cherechesu@xxxxxxx>
> + * Copyright 2021-2024 NXP
> + */
> +
> +#include <asm/platform.h>
> +
> +static const char * const s32cc_dt_compat[] __initconst =
> +{
> +    "nxp,s32g2",
> +    "nxp,s32g3",
> +    "nxp,s32r45",
> +    NULL
> +};
> +
> +PLATFORM_START(s32cc, "NXP S32CC")
> +    .compatible = s32cc_dt_compat,
> +PLATFORM_END
> +
> +/*
> + * Local variables:
> + * mode: C
> + * c-file-style: "BSD"
> + * c-basic-offset: 4
> + * indent-tabs-mode: nil
> + * End:
> + */
> -- 
> 2.45.2
>