nios2: trim CONFIG_SYS_MEMTEST_END

[u-boot] / drivers / serial / arm_dcc.c

diff --git a/drivers/serial/arm_dcc.c b/drivers/serial/arm_dcc.c
index e76c0382d8d39e8db43d602c203b59a2dbfe931a..df7eb05e82460e998be15e56734e8ff8ff83f5e3 100644 (file)
--- a/drivers/serial/arm_dcc.c
+++ b/drivers/serial/arm_dcc.c
@@ -27,10 +27,11 @@
  */
 
 #include <common.h>
+#include <serial.h>
 
-#if defined(CONFIG_CPU_V6)
+#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V7)
 /*
- * ARMV6
+ * ARMV6 & ARMV7
  */
 #define DCC_RBIT       (1 << 30)
 #define DCC_WBIT       (1 << 29)
@@ -60,6 +61,22 @@
 #define status_dcc(x)  \
                __asm__ volatile ("mrc p14, 0, %0, c14, c0, 0\n" : "=r" (x))
 
+#elif defined(CONFIG_CPU_ARMV8)
+/*
+ * ARMV8
+ */
+#define DCC_RBIT       (1 << 30)
+#define DCC_WBIT       (1 << 29)
+
+#define write_dcc(x)   \
+               __asm__ volatile ("msr dbgdtrtx_el0, %0\n" : : "r" (x))
+
+#define read_dcc(x)    \
+               __asm__ volatile ("mrs %0, dbgdtrrx_el0\n" : "=r" (x))
+
+#define status_dcc(x)  \
+               __asm__ volatile ("mrs %0, mdccsr_el0\n" : "=r" (x))
+
 #else
 #define DCC_RBIT       (1 << 0)
 #define DCC_WBIT       (1 << 1)
@@ -88,12 +105,12 @@
 
 #define TIMEOUT_COUNT 0x4000000
 
-int arm_dcc_init(void)
+static int arm_dcc_init(void)
 {
        return 0;
 }
 
-int arm_dcc_getc(void)
+static int arm_dcc_getc(void)
 {
        int ch;
        register unsigned int reg;
@@ -106,7 +123,7 @@ int arm_dcc_getc(void)
        return ch;
 }
 
-void arm_dcc_putc(char ch)
+static void arm_dcc_putc(char ch)
 {
        register unsigned int reg;
        unsigned int timeout_count = TIMEOUT_COUNT;
@@ -122,13 +139,7 @@ void arm_dcc_putc(char ch)
                write_dcc(ch);
 }
 
-void arm_dcc_puts(const char *s)
-{
-       while (*s)
-               arm_dcc_putc(*s++);
-}
-
-int arm_dcc_tstc(void)
+static int arm_dcc_tstc(void)
 {
        register unsigned int reg;
 
@@ -137,7 +148,27 @@ int arm_dcc_tstc(void)
        return reg;
 }
 
+static void arm_dcc_setbrg(void)
+{
+}
+
+static struct serial_device arm_dcc_drv = {
+       .name   = "arm_dcc",
+       .start  = arm_dcc_init,
+       .stop   = NULL,
+       .setbrg = arm_dcc_setbrg,
+       .putc   = arm_dcc_putc,
+       .puts   = default_serial_puts,
+       .getc   = arm_dcc_getc,
+       .tstc   = arm_dcc_tstc,
+};
+
+void arm_dcc_initialize(void)
+{
+       serial_register(&arm_dcc_drv);
+}
+
 __weak struct serial_device *default_serial_console(void)
 {
-       return NULL;
+       return &arm_dcc_drv;
 }