1 files changed, 28 insertions, 1 deletions

diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 39e7c5a5946a..7d27853ff8c8 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -44,6 +44,7 @@
 #include <asm/pdc_chassis.h>
 #include <asm/io.h>
 #include <asm/setup.h>
+#include <asm/unwind.h>
 
 static char __initdata command_line[COMMAND_LINE_SIZE];
 
@@ -123,6 +124,7 @@ void __init setup_arch(char **cmdline_p)
 #ifdef CONFIG_64BIT
         extern int parisc_narrow_firmware;
 #endif
+        unwind_init();
 
         init_per_cpu(smp_processor_id());       /* Set Modes & Enable FP */
 
@@ -368,6 +370,31 @@ static int __init parisc_init(void)
 
         return 0;
 }
-
 arch_initcall(parisc_init);
 
+void start_parisc(void)
+{
+        extern void start_kernel(void);
+
+        int ret, cpunum;
+        struct pdc_coproc_cfg coproc_cfg;
+
+        cpunum = smp_processor_id();
+
+        set_firmware_width_unlocked();
+
+        ret = pdc_coproc_cfg_unlocked(&coproc_cfg);
+        if (ret >= 0 && coproc_cfg.ccr_functional) {
+                mtctl(coproc_cfg.ccr_functional, 10);
+
+                cpu_data[cpunum].fp_rev = coproc_cfg.revision;
+                cpu_data[cpunum].fp_model = coproc_cfg.model;
+
+                asm volatile ("fstd     %fr0,8(%sp)");
+        } else {
+                panic("must have an fpu to boot linux");
+        }
+
+        start_kernel();
+        // not reached
+}