[PATCH v2 5/6] andes: ae350: Save cpu name to env

[Yu-Chien Peter Lin]

On Tue, Dec 26, 2023 at 02:54:27PM +0800, Leo Yu-Chi Liang wrote:
> Detect CPU name through marchid and then save it to env.
> 
> Signed-off-by: Leo Yu-Chi Liang <ycliang at andestech.com>

Reviewed-by: Yu Chien Peter Lin <peterlin at andestech.com>

> ---
>  board/AndesTech/ae350/ae350.c | 23 +++++++++++++++++++++++
>  1 file changed, 23 insertions(+)
> 
> diff --git a/board/AndesTech/ae350/ae350.c b/board/AndesTech/ae350/ae350.c
> index bef9e3149e..4e53fee5d2 100644
> --- a/board/AndesTech/ae350/ae350.c
> +++ b/board/AndesTech/ae350/ae350.c
> @@ -13,7 +13,9 @@
>  #if defined(CONFIG_FTMAC100) && !defined(CONFIG_DM_ETH)
>  #include <netdev.h>
>  #endif
> +#include <asm/csr.h>
>  #include <asm/global_data.h>
> +#include <asm/sbi.h>
>  #include <linux/io.h>
>  #include <faraday/ftsmc020.h>
>  #include <fdtdec.h>
> @@ -27,6 +29,27 @@ DECLARE_GLOBAL_DATA_PTR;
>  /*
>   * Miscellaneous platform dependent initializations
>   */
> +#if IS_ENABLED(CONFIG_MISC_INIT_R)
> +int misc_init_r(void)
> +{
> +    long csr_marchid = 0;
> +    const long mask_64 = 0x8000;
> +    const long mask_cpu = 0xff;
> +    char cpu_name[10] = {};
> +
> +#if CONFIG_IS_ENABLED(RISCV_SMODE)
> +    sbi_get_marchid(&csr_marchid);
> +#elif CONFIG_IS_ENABLED(RISCV_MMODE)
> +    csr_marchid = csr_read(CSR_MARCHID);
> +#endif
> +    if (mask_64 & csr_marchid)
> +        snprintf(cpu_name, sizeof(cpu_name), "ax%lx", (mask_cpu & csr_marchid));
> +    else
> +        snprintf(cpu_name, sizeof(cpu_name), "a%lx", (mask_cpu & csr_marchid));
> +
> +    return env_set("cpu", cpu_name);
> +}
> +#endif
>  
>  #if CONFIG_IS_ENABLED(LOAD_FIT) || CONFIG_IS_ENABLED(LOAD_FIT_FULL)
>  #define ANDES_SPL_FDT_ADDR	(CONFIG_TEXT_BASE - 0x100000)
> -- 
> 2.34.1
>