x86: Add an fdt pointer to the global data structure

This change adds a pointer to the global data structure in x86 to point to
the device tree. This mirrors an identical pointer in ARM.

Signed-off-by: Gabe Black <gabeblack@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/x86/include/asm/global_data.h b/arch/x86/include/asm/global_data.h
index b8961ba..35110a3 100644 (file)
--- a/arch/x86/include/asm/global_data.h
+++ b/arch/x86/include/asm/global_data.h
@@ -58,6 +58,7 @@ struct global_data {
        unsigned long   gdt_addr;       /* Location of GDT */
        phys_size_t     ram_size;       /* RAM size */
        unsigned long   reset_status;   /* reset status register at boot */
+       const void      *fdt_blob;      /* Our device tree, NULL if none */
        void            **jt;           /* jump table */
        char            env_buf[32];    /* buffer for getenv() before reloc. */
 };