[PATCH 2/3] MIPS: Loongson64: Add KASLR support

[Jinyang He]

Provide null return plat_get_fdt(). Loongson64 start supporting KASLR.

Signed-off-by: Jinyang He <hejiny...@loongson.cn>
---
 arch/mips/Kconfig            | 4 +++-
 arch/mips/loongson64/setup.c | 7 +++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 0f638bf..1508829 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -488,6 +488,7 @@ config MACH_LOONGSON64
        select SYS_SUPPORTS_HIGHMEM
        select SYS_SUPPORTS_LITTLE_ENDIAN
        select SYS_SUPPORTS_ZBOOT
+       select SYS_SUPPORTS_RELOCATABLE
        select ZONE_DMA32
        select NUMA
        select SMP
@@ -2778,7 +2779,8 @@ config RELOCATABLE
        depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
                   CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
                   CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
-                  CPU_P5600 || CAVIUM_OCTEON_SOC
+                  CPU_P5600 || CAVIUM_OCTEON_SOC || \
+                  CPU_LOONGSON64
        help
          This builds a kernel image that retains relocation information
          so it can be loaded someplace besides the default 1MB.
diff --git a/arch/mips/loongson64/setup.c b/arch/mips/loongson64/setup.c
index 6fe3fff..5a5b745 100644
--- a/arch/mips/loongson64/setup.c
+++ b/arch/mips/loongson64/setup.c
@@ -31,6 +31,13 @@ static void wbflush_loongson(void)
 void (*__wbflush)(void) = wbflush_loongson;
 EXPORT_SYMBOL(__wbflush);
 
+#ifdef CONFIG_RELOCATABLE
+void __init *plat_get_fdt(void)
+{
+               return NULL;
+}
+#endif
+
 void __init plat_mem_setup(void)
 {
        if (loongson_fdt_blob)
-- 
2.1.0