lib: utils: Implement "64bit-mmio" property parsing

Figure out CLINT has_64bit_mmio from DT node and using antonym for
compatibility.

Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>

diff --git a/lib/utils/fdt/fdt_helper.c b/lib/utils/fdt/fdt_helper.c
index bf19ff9..909de01 100644 (file)
--- a/lib/utils/fdt/fdt_helper.c
+++ b/lib/utils/fdt/fdt_helper.c
@@ -442,8 +442,9 @@ int fdt_parse_clint_node(void *fdt, int nodeoffset, bool for_timer,
        if (clint->hart_count < count)
                clint->hart_count = count;
 
-       /* TODO: We should figure-out CLINT has_64bit_mmio from DT node */
        clint->has_64bit_mmio = TRUE;
+       if (fdt_getprop(fdt, nodeoffset, "clint,has-no-64bit-mmio", &count))
+               clint->has_64bit_mmio = FALSE;
 
        return 0;
 }