powerpc/kexec: Add support for FSL-BookE

[mv-sheeva.git] / arch / powerpc / include / asm / kexec.h

diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h
index 7e06b43720d3ce0ce439c50b4ba980f6e398fc01..2a9cd74a841e3e234b6d1a4bb6beb8e5cd1b207b 100644 (file)
--- a/arch/powerpc/include/asm/kexec.h
+++ b/arch/powerpc/include/asm/kexec.h
@@ -2,6 +2,18 @@
 #define _ASM_POWERPC_KEXEC_H
 #ifdef __KERNEL__
 
+#ifdef CONFIG_FSL_BOOKE
+
+/*
+ * On FSL-BookE we setup a 1:1 mapping which covers the first 2GiB of memory
+ * and therefore we can only deal with memory within this range
+ */
+#define KEXEC_SOURCE_MEMORY_LIMIT      (2 * 1024 * 1024 * 1024UL)
+#define KEXEC_DESTINATION_MEMORY_LIMIT (2 * 1024 * 1024 * 1024UL)
+#define KEXEC_CONTROL_MEMORY_LIMIT     (2 * 1024 * 1024 * 1024UL)
+
+#else
+
 /*
  * Maximum page that is mapped directly into kernel memory.
  * XXX: Since we copy virt we can use any page we allocate
@@ -21,6 +33,7 @@
 /* TASK_SIZE, probably left over from use_mm ?? */
 #define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
 #endif
+#endif
 
 #define KEXEC_CONTROL_PAGE_SIZE 4096
 
@@ -31,6 +44,10 @@
 #define KEXEC_ARCH KEXEC_ARCH_PPC
 #endif
 
+#define KEXEC_STATE_NONE 0
+#define KEXEC_STATE_IRQS_OFF 1
+#define KEXEC_STATE_REAL_MODE 2
+
 #ifndef __ASSEMBLY__
 #include <linux/cpumask.h>
 #include <asm/reg.h>