microblaze_v8: Cpuinfo handling

Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: John Linn <john.linn@xilinx.com>
Acked-by: John Williams <john.williams@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>

1 files changed, 102 insertions, 0 deletions

diff --git a/arch/microblaze/include/asm/cpuinfo.h b/arch/microblaze/include/asm/cpuinfo.h
new file mode 100644
index 000000000000..52f28f6dc4eb
--- /dev/null
+++ b/arch/microblaze/include/asm/cpuinfo.h
@@ -0,0 +1,102 @@
+/*
+ * Generic support for queying CPU info
+ *
+ * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
+ * Copyright (C) 2007-2009 PetaLogix
+ * Copyright (C) 2007 John Williams <jwilliams@itee.uq.edu.au>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file COPYING in the main directory of this
+ * archive for more details.
+ */
+
+#ifndef _ASM_MICROBLAZE_CPUINFO_H
+#define _ASM_MICROBLAZE_CPUINFO_H
+
+#include <asm/prom.h>
+
+/* CPU Version and FPGA Family code conversion table type */
+struct cpu_ver_key {
+        const char *s;
+        const unsigned k;
+};
+
+extern const struct cpu_ver_key cpu_ver_lookup[];
+
+struct family_string_key {
+        const char *s;
+        const unsigned k;
+};
+
+extern const struct family_string_key family_string_lookup[];
+
+struct cpuinfo {
+        /* Core CPU configuration */
+        u32 use_instr;
+        u32 use_mult;
+        u32 use_fpu;
+        u32 use_exc;
+        u32 ver_code;
+        u32 mmu;
+
+        /* CPU caches */
+        u32 use_icache;
+        u32 icache_tagbits;
+        u32 icache_write;
+        u32 icache_line;
+        u32 icache_size;
+        unsigned long icache_base;
+        unsigned long icache_high;
+
+        u32 use_dcache;
+        u32 dcache_tagbits;
+        u32 dcache_write;
+        u32 dcache_line;
+        u32 dcache_size;
+        unsigned long dcache_base;
+        unsigned long dcache_high;
+
+        /* Bus connections */
+        u32 use_dopb;
+        u32 use_iopb;
+        u32 use_dlmb;
+        u32 use_ilmb;
+        u32 num_fsl;
+
+        /* CPU interrupt line info */
+        u32 irq_edge;
+        u32 irq_positive;
+
+        u32 area_optimised;
+
+        /* HW debug support */
+        u32 hw_debug;
+        u32 num_pc_brk;
+        u32 num_rd_brk;
+        u32 num_wr_brk;
+        u32 cpu_clock_freq; /* store real freq of cpu */
+        u32 freq_div_hz; /* store freq/HZ */
+
+        /* FPGA family */
+        u32 fpga_family_code;
+
+        /* User define */
+        u32 pvr_user1;
+        u32 pvr_user2;
+};
+
+extern struct cpuinfo cpuinfo;
+
+/* fwd declarations of the various CPUinfo populators */
+void setup_cpuinfo(void);
+
+void set_cpuinfo_static(struct cpuinfo *ci, struct device_node *cpu);
+void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu);
+
+static inline unsigned int fcpu(struct device_node *cpu, char *n)
+{
+        int *val;
+        return (val = (int *) of_get_property(cpu, n, NULL)) ? *val : 0;
+}
+
+#endif /* _ASM_MICROBLAZE_CPUINFO_H */