On 02.08.23 12:50, Denis Osterland-Heim wrote:
> From: Denis OSTERLAND-HEIM <denis.osterland@xxxxxxxxx>
>
> The video core creates some additional nodes.
> This code takes over this values.
> The /hat node is only there if an raspi hat with EEPROM is detected.
>
> Signed-off-by: Denis OSTERLAND-HEIM <denis.osterland@xxxxxxxxx>
Acked-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx>
> ---
> arch/arm/boards/raspberry-pi/rpi-common.c | 38 +++++++++++++++++------
> 1 file changed, 29 insertions(+), 9 deletions(-)
>
> diff --git a/arch/arm/boards/raspberry-pi/rpi-common.c
> b/arch/arm/boards/raspberry-pi/rpi-common.c
> index 2f525e7d70..9c85c85d14 100644
> --- a/arch/arm/boards/raspberry-pi/rpi-common.c
> +++ b/arch/arm/boards/raspberry-pi/rpi-common.c
> @@ -264,19 +264,36 @@ static enum reset_src_type
> rpi_decode_pm_rsts(struct device_node *chosen,
>
> static int rpi_vc_fdt_fixup(struct device_node *root, void *data)
> {
> - const struct device_node *vc_chosen = data;
> - struct device_node *chosen;
> + const struct device_node *vc_node = data;
> + struct device_node *node;
> + struct property *pp;
>
> - chosen = of_create_node(root, "/chosen");
> - if (!chosen)
> + node = of_create_node(root, vc_node->full_name);
> + if (!node)
> return -ENOMEM;
>
> - of_copy_property(vc_chosen, "overlay_prefix", chosen);
> - of_copy_property(vc_chosen, "os_prefix", chosen);
> + for_each_property_of_node(vc_node, pp)
> + of_copy_property(vc_node, pp->name, node);
>
> return 0;
> }
>
> +static struct device_node *register_vc_fixup(struct device_node *root,
> const char *path)
> +{
> + struct device_node *ret, *tmp;
> +
> + ret = of_find_node_by_path_from(root, path);
> + if (ret) {
> + tmp = of_dup(ret);
> + tmp->full_name = xstrdup(ret->full_name);
> + of_register_fixup(rpi_vc_fdt_fixup, tmp);
> + } else {
> + pr_info("no '%s' node found in vc fdt\n", path);
> + }
> +
> + return ret;
> +}
> +
> static u32 rpi_boot_mode, rpi_boot_part;
> /* Extract useful information from the VideoCore FDT we got.
> * Some parameters are defined here:
> @@ -300,14 +317,17 @@ static void rpi_vc_fdt_parse(struct device_node
> *root)
> free(str);
> }
>
> - chosen = of_find_node_by_path_from(root, "/chosen");
> + register_vc_fixup(root, "/system");
> + register_vc_fixup(root, "/axi");
> + register_vc_fixup(root, "/reserved-memory");
> + register_vc_fixup(root, "/hat");
> + register_vc_fixup(root, "/chosen/bootloader");
> + chosen = register_vc_fixup(root, "/chosen");
> if (!chosen) {
> pr_err("no '/chosen' node found in vc fdt\n");
> goto out;
> }
>
> - of_register_fixup(rpi_vc_fdt_fixup, of_dup(chosen));
> -
> bootloader = of_find_node_by_name(chosen, "bootloader");
>
> str = of_read_vc_string(chosen, "bootargs");
--
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