platform: generic: Allow platform_override to perform firmware init

We add a generic platform override callback to allow platform specific firmware init.

Signed-off-by: Wei Liang Lim <weiliang.lim@starfivetech.com>
Reviewed-by: Chee Hong Ang <cheehong.ang@starfivetech.com>
Reviewed-by: Jun Liang Tan <junliang.tan@starfivetech.com>
Reviewed-by: Anup Patel <anup@brainfault.org>

diff --git a/platform/generic/include/platform_override.h b/platform/generic/include/platform_override.h
index 21354e9..a59b06a 100644 (file)
--- a/platform/generic/include/platform_override.h
+++ b/platform/generic/include/platform_override.h
@@ -26,6 +26,7 @@ struct platform_override {
        int (*fdt_fixup)(void *fdt, const struct fdt_match *match);
        int (*extensions_init)(const struct fdt_match *match,
                               struct sbi_hart_features *hfeatures);
+       void (*fw_init)(void *fdt, const struct fdt_match *match);
        int (*vendor_ext_check)(long extid, const struct fdt_match *match);
        int (*vendor_ext_provider)(long extid, long funcid,
                                   const struct sbi_trap_regs *regs,

diff --git a/platform/generic/platform.c b/platform/generic/platform.c
index 5fb0dc6..a34d3b0 100644 (file)
--- a/platform/generic/platform.c
+++ b/platform/generic/platform.c
@@ -85,6 +85,9 @@ unsigned long fw_platform_init(unsigned long arg0, unsigned long arg1,
 
        fw_platform_lookup_special(fdt, root_offset);
 
+       if (generic_plat && generic_plat->fw_init)
+               generic_plat->fw_init(fdt, generic_plat_match);
+
        model = fdt_getprop(fdt, root_offset, "model", &len);
        if (model)
                sbi_strncpy(platform.name, model, sizeof(platform.name) - 1);