[MIPS] Support for the R5500-based NEC EMMA2RH Mark-eins board

Signed-off-by: dmitry pervushin  <dpervushin@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 60 insertions, 0 deletions

diff --git a/arch/mips/emma2rh/markeins/led.c b/arch/mips/emma2rh/markeins/led.c
new file mode 100644
index 000000000000..b65254c1bfe9
--- /dev/null
+++ b/arch/mips/emma2rh/markeins/led.c
@@ -0,0 +1,60 @@
+/*
+ *  arch/mips/emma2rh/markeins/led.c
+ *      This file defines the led display for Mark-eins.
+ *
+ *  Copyright (C) NEC Electronics Corporation 2004-2006
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <asm/emma2rh/emma2rh.h>
+
+const unsigned long clear = 0x20202020;
+
+#define LED_BASE 0xb1400038
+
+void markeins_led_clear(void)
+{
+	emma2rh_out32(LED_BASE, clear);
+	emma2rh_out32(LED_BASE + 4, clear);
+}
+
+void markeins_led(const char *str)
+{
+	int i;
+	int len = strlen(str);
+
+	markeins_led_clear();
+	if (len > 8)
+		len = 8;
+
+	if (emma2rh_in32(0xb0000800) & (0x1 << 18))
+		for (i = 0; i < len; i++)
+			emma2rh_out8(LED_BASE + i, str[i]);
+	else
+		for (i = 0; i < len; i++)
+			emma2rh_out8(LED_BASE + (i & 4) + (3 - (i & 3)),
+				     str[i]);
+}
+
+void markeins_led_hex(u32 val)
+{
+	char str[10];
+
+	sprintf(str, "%08x", val);
+	markeins_led(str);
+}