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-rw-r--r--arch/mips/lantiq/prom.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/mips/lantiq/prom.c b/arch/mips/lantiq/prom.c
index 297bcaa6b5d3..a5c7fec92a97 100644
--- a/arch/mips/lantiq/prom.c
+++ b/arch/mips/lantiq/prom.c
@@ -65,6 +65,8 @@ static void __init prom_init_cmdline(void)
void __init plat_mem_setup(void)
{
+ void *dtb;
+
ioport_resource.start = IOPORT_RESOURCE_START;
ioport_resource.end = IOPORT_RESOURCE_END;
iomem_resource.start = IOMEM_RESOURCE_START;
@@ -72,11 +74,18 @@ void __init plat_mem_setup(void)
set_io_port_base((unsigned long) KSEG1);
+ if (fw_arg0 == -2) /* UHI interface */
+ dtb = (void *)fw_arg1;
+ else if (__dtb_start != __dtb_end)
+ dtb = (void *)__dtb_start;
+ else
+ panic("no dtb found");
+
/*
- * Load the builtin devicetree. This causes the chosen node to be
+ * Load the devicetree. This causes the chosen node to be
* parsed resulting in our memory appearing
*/
- __dt_setup_arch(__dtb_start);
+ __dt_setup_arch(dtb);
}
void __init device_tree_init(void)