armv7: Move L2CTLR read/write to common

L2CTLR read/write functions are common to armv7 so, move
them in to include/asm/armv7.h and use them where ever it need.

Cc: Tom Warren <twarren@nvidia.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
[Backed out the change to arch/arm/mach-tegra/cache.c:]
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>

diff --git a/arch/arm/include/asm/armv7.h b/arch/arm/include/asm/armv7.h
index a20702e..efc515e 100644 (file)
--- a/arch/arm/include/asm/armv7.h
+++ b/arch/arm/include/asm/armv7.h
@@ -61,6 +61,27 @@
 #include <asm/io.h>
 #include <asm/barriers.h>
 
+/* read L2 control register (L2CTLR) */
+static inline uint32_t read_l2ctlr(void)
+{
+       uint32_t val = 0;
+
+       asm volatile ("mrc p15, 1, %0, c9, c0, 2" : "=r" (val));
+
+       return val;
+}
+
+/* write L2 control register (L2CTLR) */
+static inline void write_l2ctlr(uint32_t val)
+{
+       /*
+        * Note: L2CTLR can only be written when the L2 memory system
+        * is idle, ie before the MMU is enabled.
+        */
+       asm volatile("mcr p15, 1, %0, c9, c0, 2" : : "r" (val) : "memory");
+       isb();
+}
+
 /*
  * Workaround for ARM errata # 798870
  * Set L2ACTLR[7] to reissue any memory transaction in the L2 that has been

diff --git a/arch/arm/mach-rockchip/rk3288-board-spl.c b/arch/arm/mach-rockchip/rk3288-board-spl.c
index 6b7bf85..8a1066c 100644 (file)
--- a/arch/arm/mach-rockchip/rk3288-board-spl.c
+++ b/arch/arm/mach-rockchip/rk3288-board-spl.c
@@ -13,6 +13,7 @@
 #include <malloc.h>
 #include <ram.h>
 #include <spl.h>
+#include <asm/armv7.h>
 #include <asm/gpio.h>
 #include <asm/io.h>
 #include <asm/arch/bootrom.h>
@@ -80,27 +81,6 @@ u32 spl_boot_mode(const u32 boot_device)
        return MMCSD_MODE_RAW;
 }
 
-/* read L2 control register (L2CTLR) */
-static inline uint32_t read_l2ctlr(void)
-{
-       uint32_t val = 0;
-
-       asm volatile ("mrc p15, 1, %0, c9, c0, 2" : "=r" (val));
-
-       return val;
-}
-
-/* write L2 control register (L2CTLR) */
-static inline void write_l2ctlr(uint32_t val)
-{
-       /*
-        * Note: L2CTLR can only be written when the L2 memory system
-        * is idle, ie before the MMU is enabled.
-        */
-       asm volatile("mcr p15, 1, %0, c9, c0, 2" : : "r" (val) : "memory");
-       isb();
-}
-
 static void configure_l2ctlr(void)
 {
        uint32_t l2ctlr;