arc: define and use PTAG AUX regs for MMUv3 only

DC_PTAG and IC_PTAG registers only exist in MMUv3.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>

diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h
index 31627e65b93837cefd9d5f2904f5cada3401f535..6a36a81c0f1545680089b9ad3c8d03ace0bff613 100644 (file)
--- a/arch/arc/include/asm/arcregs.h
+++ b/arch/arc/include/asm/arcregs.h
@@ -23,7 +23,7 @@
 #define ARC_AUX_IC_IVIC                0x10
 #define ARC_AUX_IC_CTRL                0x11
 #define ARC_AUX_IC_IVIL                0x19
-#if (CONFIG_ARC_MMU_VER > 2)
+#if (CONFIG_ARC_MMU_VER == 3)
 #define ARC_AUX_IC_PTAG                0x1E
 #endif
 #define ARC_BCR_IC_BUILD       0x77
@@ -42,7 +42,7 @@
 #define ARC_AUX_DC_IVDL                0x4A
 #define ARC_AUX_DC_FLSH                0x4B
 #define ARC_AUX_DC_FLDL                0x4C
-#if (CONFIG_ARC_MMU_VER > 2)
+#if (CONFIG_ARC_MMU_VER == 3)
 #define ARC_AUX_DC_PTAG                0x5C
 #endif
 #define ARC_BCR_DC_BUILD       0x72

diff --git a/arch/arc/lib/cache.c b/arch/arc/lib/cache.c
index fa19a13b7e698f49384683423b157a55557ffb17..fa2a1e77a2c446497af3422d9789e4f340ec350d 100644 (file)
--- a/arch/arc/lib/cache.c
+++ b/arch/arc/lib/cache.c
@@ -101,7 +101,7 @@ void flush_dcache_all(void)
 #ifndef CONFIG_SYS_DCACHE_OFF
 static void dcache_flush_line(unsigned addr)
 {
-#if (CONFIG_ARC_MMU_VER > 2)
+#if (CONFIG_ARC_MMU_VER == 3)
        write_aux_reg(ARC_AUX_DC_PTAG, addr);
 #endif
        write_aux_reg(ARC_AUX_DC_FLDL, addr);
@@ -115,7 +115,7 @@ static void dcache_flush_line(unsigned addr)
         * Invalidate I$ for addresses range just flushed from D$.
         * If we try to execute data flushed above it will be valid/correct
         */
-#if (CONFIG_ARC_MMU_VER > 2)
+#if (CONFIG_ARC_MMU_VER == 3)
        write_aux_reg(ARC_AUX_IC_PTAG, addr);
 #endif
        write_aux_reg(ARC_AUX_IC_IVIL, addr);
@@ -145,7 +145,7 @@ void invalidate_dcache_range(unsigned long start, unsigned long end)
        end = end & (~(CONFIG_SYS_CACHELINE_SIZE - 1));
 
        for (addr = start; addr <= end; addr += CONFIG_SYS_CACHELINE_SIZE) {
-#if (CONFIG_ARC_MMU_VER > 2)
+#if (CONFIG_ARC_MMU_VER == 3)
                write_aux_reg(ARC_AUX_DC_PTAG, addr);
 #endif
                write_aux_reg(ARC_AUX_DC_IVDL, addr);