[PATCH] platform: kendryte/k210: fixup FDT

[Atish Patra]

On Tue, Aug 18, 2020 at 8:54 AM Heinrich Schuchardt <xypron.glpk at gmx.de> wrote:
>
> When passing the device tree to the next stage we should apply necessary
> device tree fix-ups first. These include:
>
> * fix up the CPU node in the device tree
> * fix up the PLIC node in the device tree
> * fix up the reserved memory node in the device tree
>
> Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
> ---
>  platform/kendryte/k210/platform.c | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
>
> diff --git a/platform/kendryte/k210/platform.c b/platform/kendryte/k210/platform.c
> index 5c28fd9..75883ed 100644
> --- a/platform/kendryte/k210/platform.c
> +++ b/platform/kendryte/k210/platform.c
> @@ -12,6 +12,7 @@
>  #include <sbi/sbi_console.h>
>  #include <sbi/sbi_const.h>
>  #include <sbi/sbi_platform.h>
> +#include <sbi_utils/fdt/fdt_fixup.h>
>  #include <sbi_utils/irqchip/plic.h>
>  #include <sbi_utils/serial/sifive-uart.h>
>  #include <sbi_utils/sys/clint.h>
> @@ -67,6 +68,21 @@ static u32 k210_get_clk_freq(void)
>         return pll0_freq / div;
>  }
>
> +static int k210_final_init(bool cold_boot)
> +{
> +       void *fdt;
> +
> +       if (!cold_boot)
> +               return 0;
> +
> +       fdt = sbi_scratch_thishart_arg1_ptr();
> +
> +       fdt_cpu_fixup(fdt);
> +       fdt_fixups(fdt);
> +
> +       return 0;
> +}
> +
>  static int k210_console_init(void)
>  {
>         return sifive_uart_init(K210_UART_BASE_ADDR, k210_get_clk_freq(),
> @@ -122,6 +138,8 @@ static int k210_system_reset(u32 type)
>  }
>
>  const struct sbi_platform_operations platform_ops = {
> +       .final_init     = k210_final_init,
> +
>         .console_init   = k210_console_init,
>         .console_putc   = sifive_uart_putc,
>         .console_getc   = sifive_uart_getc,
> --
> 2.28.0
>
>
> --
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Reviewed-by: Atish Patra <atish.patra at wdc.com>


-- 
Regards,
Atish