3 files changed, 45 insertions, 4 deletions

diff --git a/include/asm-powerpc/cputable.h b/include/asm-powerpc/cputable.h
index 782adbf1f7aa..7384b8086b75 100644
--- a/include/asm-powerpc/cputable.h
+++ b/include/asm-powerpc/cputable.h
@@ -126,6 +126,7 @@ extern void do_feature_fixups(unsigned long value, void *fixup_start,
 #define CPU_FTR_NODSISRALIGN            ASM_CONST(0x0000000000100000)
 #define CPU_FTR_PPC_LE                  ASM_CONST(0x0000000000200000)
 #define CPU_FTR_REAL_LE                 ASM_CONST(0x0000000000400000)
+#define CPU_FTR_FPU_UNAVAILABLE         ASM_CONST(0x0000000000800000)
 
 /*
  * Add the 64-bit processor unique features in the top half of the word;
@@ -296,6 +297,9 @@ extern void do_feature_fixups(unsigned long value, void *fixup_start,
 #define CPU_FTRS_E300   (CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE | \
             CPU_FTR_USE_TB | CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_HAS_HIGH_BATS | \
             CPU_FTR_COMMON)
+#define CPU_FTRS_E300C2 (CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_MAYBE_CAN_DOZE | \
+            CPU_FTR_USE_TB | CPU_FTR_MAYBE_CAN_NAP | CPU_FTR_HAS_HIGH_BATS | \
+            CPU_FTR_COMMON | CPU_FTR_FPU_UNAVAILABLE)
 #define CPU_FTRS_CLASSIC32      (CPU_FTR_COMMON | CPU_FTR_SPLIT_ID_CACHE | \
             CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE)
 #define CPU_FTRS_8XX    (CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB)
@@ -366,7 +370,8 @@ enum {
             CPU_FTRS_7450_21 | CPU_FTRS_7450_23 | CPU_FTRS_7455_1 |
             CPU_FTRS_7455_20 | CPU_FTRS_7455 | CPU_FTRS_7447_10 |
             CPU_FTRS_7447 | CPU_FTRS_7447A | CPU_FTRS_82XX |
-            CPU_FTRS_G2_LE | CPU_FTRS_E300 | CPU_FTRS_CLASSIC32 |
+            CPU_FTRS_G2_LE | CPU_FTRS_E300 | CPU_FTRS_E300C2 |
+            CPU_FTRS_CLASSIC32 |
 #else
             CPU_FTRS_GENERIC_32 |
 #endif
@@ -405,7 +410,8 @@ enum {
             CPU_FTRS_7450_21 & CPU_FTRS_7450_23 & CPU_FTRS_7455_1 &
             CPU_FTRS_7455_20 & CPU_FTRS_7455 & CPU_FTRS_7447_10 &
             CPU_FTRS_7447 & CPU_FTRS_7447A & CPU_FTRS_82XX &
-            CPU_FTRS_G2_LE & CPU_FTRS_E300 & CPU_FTRS_CLASSIC32 &
+            CPU_FTRS_G2_LE & CPU_FTRS_E300 & CPU_FTRS_E300C2 &
+            CPU_FTRS_CLASSIC32 &
 #else
             CPU_FTRS_GENERIC_32 &
 #endif
diff --git a/include/asm-powerpc/dcr-native.h b/include/asm-powerpc/dcr-native.h
index fd4a5f5e33d1..d7a1bc1551c6 100644
--- a/include/asm-powerpc/dcr-native.h
+++ b/include/asm-powerpc/dcr-native.h
@@ -20,8 +20,7 @@
 #ifndef _ASM_POWERPC_DCR_NATIVE_H
 #define _ASM_POWERPC_DCR_NATIVE_H
 #ifdef __KERNEL__
-
-#include <asm/reg.h>
+#ifndef __ASSEMBLY__
 
 typedef struct {} dcr_host_t;
 
@@ -32,7 +31,41 @@ typedef struct {} dcr_host_t;
 #define dcr_read(host, dcr_n)           mfdcr(dcr_n)
 #define dcr_write(host, dcr_n, value)   mtdcr(dcr_n, value)
 
+/* Device Control Registers */
+void __mtdcr(int reg, unsigned int val);
+unsigned int __mfdcr(int reg);
+#define mfdcr(rn)                                               \
+        ({unsigned int rval;                                    \
+        if (__builtin_constant_p(rn))                           \
+                asm volatile("mfdcr %0," __stringify(rn)        \
+                              : "=r" (rval));                   \
+        else                                                    \
+                rval = __mfdcr(rn);                             \
+        rval;})
+
+#define mtdcr(rn, v)                                            \
+do {                                                            \
+        if (__builtin_constant_p(rn))                           \
+                asm volatile("mtdcr " __stringify(rn) ",%0"     \
+                              : : "r" (v));                     \
+        else                                                    \
+                __mtdcr(rn, v);                                 \
+} while (0)
+
+/* R/W of indirect DCRs make use of standard naming conventions for DCRs */
+#define mfdcri(base, reg)                       \
+({                                              \
+        mtdcr(base ## _CFGADDR, base ## _ ## reg);      \
+        mfdcr(base ## _CFGDATA);                        \
+})
+
+#define mtdcri(base, reg, data)                 \
+do {                                            \
+        mtdcr(base ## _CFGADDR, base ## _ ## reg);      \
+        mtdcr(base ## _CFGDATA, data);          \
+} while (0)
 
+#endif /* __ASSEMBLY__ */
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_DCR_NATIVE_H */
 
diff --git a/include/asm-powerpc/dcr.h b/include/asm-powerpc/dcr.h
index 473f2c7fd892..b66c5e6941f0 100644
--- a/include/asm-powerpc/dcr.h
+++ b/include/asm-powerpc/dcr.h
@@ -20,6 +20,7 @@
 #ifndef _ASM_POWERPC_DCR_H
 #define _ASM_POWERPC_DCR_H
 #ifdef __KERNEL__
+#ifdef CONFIG_PPC_DCR
 
 #ifdef CONFIG_PPC_DCR_NATIVE
 #include <asm/dcr-native.h>
@@ -38,5 +39,6 @@ extern unsigned int dcr_resource_len(struct device_node *np,
                                      unsigned int index);
 #endif /* CONFIG_PPC_MERGE */
 
+#endif /* CONFIG_PPC_DCR */
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_DCR_H */