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-rw-r--r--arch/arm/include/asm/pl310.h2
-rw-r--r--arch/arm/mach-socfpga/misc.c12
2 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/include/asm/pl310.h b/arch/arm/include/asm/pl310.h
index de7650e..d588f94 100644
--- a/arch/arm/include/asm/pl310.h
+++ b/arch/arm/include/asm/pl310.h
@@ -17,6 +17,8 @@
#define L2X0_CTRL_EN 1
#define L310_SHARED_ATT_OVERRIDE_ENABLE (1 << 22)
+#define L310_AUX_CTRL_DATA_PREFETCH_MASK (1 << 28)
+#define L310_AUX_CTRL_INST_PREFETCH_MASK (1 << 29)
struct pl310_regs {
u32 pl310_cache_id;
diff --git a/arch/arm/mach-socfpga/misc.c b/arch/arm/mach-socfpga/misc.c
index 0940cc5..bbd31ef 100644
--- a/arch/arm/mach-socfpga/misc.c
+++ b/arch/arm/mach-socfpga/misc.c
@@ -52,6 +52,18 @@ void enable_caches(void)
#endif
}
+void v7_outer_cache_enable(void)
+{
+ /* disable the L2 cache */
+ writel(0, &pl310->pl310_ctrl);
+
+ /* enable BRESP, instruction and data prefetch, full line of zeroes */
+ setbits_le32(&pl310->pl310_aux_ctrl,
+ L310_AUX_CTRL_DATA_PREFETCH_MASK |
+ L310_AUX_CTRL_INST_PREFETCH_MASK |
+ L310_SHARED_ATT_OVERRIDE_ENABLE);
+}
+
/*
* DesignWare Ethernet initialization
*/