arm/dcc: add xscale support

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

diff --git a/drivers/serial/arm_dcc.c b/drivers/serial/arm_dcc.c
index 7c7fa34..dca73b9 100644 (file)
--- a/drivers/serial/arm_dcc.c
+++ b/drivers/serial/arm_dcc.c
@@ -45,6 +45,22 @@
 #define status_dcc(x)  \
                __asm__ volatile ("mrc p14, 0, %0, c0, c1, 0\n" : "=r" (x))
 
+#elif defined(CONFIG_CPU_XSCALE)
+/*
+ * XSCALE
+ */
+#define DCC_RBIT       (1 << 31)
+#define DCC_WBIT       (1 << 28)
+
+#define write_dcc(x)   \
+               __asm__ volatile ("mcr p14, 0, %0, c8, c0, 0\n" : : "r" (x))
+
+#define read_dcc(x)    \
+               __asm__ volatile ("mrc p14, 0, %0, c9, c0, 0\n" : "=r" (x))
+
+#define status_dcc(x)  \
+               __asm__ volatile ("mrc p14, 0, %0, c14, c0, 0\n" : "=r" (x))
+
 #else
 #define DCC_RBIT       (1 << 0)
 #define DCC_WBIT       (1 << 1)