[PATCH] [RFC] sh: kexec: Register crashk_res

[Simon Horman]

Register crashk_res so that it can be used by kexec-tools
via /proc/iomem.

On x86 the registration occurs using
insert_resource(&iomem_resource, &crashk_res).
However that approach seems to result in the boot hanging on SH.

Signed-off-by: Simon Horman <horms at verge.net.au>
---
 arch/sh/kernel/setup.c |    9 ++++++---
 1 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 58bff45..6d566bb 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -211,13 +211,16 @@ void __init __add_active_range(unsigned int nid, unsigned long start_pfn,
 	}
 
 	/*
-	 *  We don't know which RAM region contains kernel data,
-	 *  so we try it repeatedly and let the resource manager
-	 *  test it.
+	 *  We don't know which RAM region contains kernel data or
+	 *  the reserved crashkernel region, so try it repeatedly
+	 *  and let the resource manager test it.
 	 */
 	request_resource(res, &code_resource);
 	request_resource(res, &data_resource);
 	request_resource(res, &bss_resource);
+#ifdef CONFIG_KEXEC
+	request_resource(res, &crashk_res);
+#endif
 
 	/*
 	 * Also make sure that there is a PMB mapping that covers this
-- 
1.7.5.4