[U-Boot] [PATCH v1] fdt: Allow non-FDT kernels to boot when CONFIG_OF_LIBFDT is defined
Hans de Goede
hdegoede at redhat.com
Fri Nov 21 15:24:20 CET 2014
Hi,
On 11/21/2014 12:55 AM, Suriyan Ramasami wrote:
> The boot commands - bootz/bootm mandate a third argument which is the
> address to the FDT blob. In cases where this argument is not specified,
> boot fails with a message indicating a missing FDT.
>
> This causes non-FDT kernels to fail to boot. This patch allows both FDT
> and non-FDT kernels to boot by making the third parameter to the bootm/bootz
> optional.
>
> Signed-off-by: Suriyan Ramasami <suriyan.r at gmail.com>
Looks good, and works for my case (booting old linux-sunxi 3.4 kernels) too) :
Tested-by: Hans de Goede <hdegoede at redhat.com>
Acked-by: Hans de Goede <hdegoede at redhat.com>
Thanks & Regards,
Hans
> ---
>
> Changes in v1:
> - First try
>
> common/image-fdt.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/common/image-fdt.c b/common/image-fdt.c
> index a39ae1b..1a02166 100644
> --- a/common/image-fdt.c
> +++ b/common/image-fdt.c
> @@ -430,6 +430,10 @@ int boot_get_fdt(int flag, int argc, char * const argv[], uint8_t arch,
> error:
> *of_flat_tree = NULL;
> *of_size = 0;
> + if (argc <= 2) {
> + debug("Continuing to boot without FDT\n");
> + return 0;
> + }
> return 1;
> }
>
>
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