1 files changed, 68 insertions, 0 deletions
diff --git a/arch/m32r/boot/compressed/m32r_sio.c b/arch/m32r/boot/compressed/m32r_sio.c
new file mode 100644
index 00000000000..bad5475eff9
--- /dev/null
+++ b/arch/m32r/boot/compressed/m32r_sio.c
@@ -0,0 +1,68 @@
+/*
+ * arch/m32r/boot/compressed/m32r_sio.c
+ *
+ * 2003-02-12:	Takeo Takahashi
+ *
+ */
+
+#include <linux/config.h>
+
+static void putc(char c);
+
+static int puts(const char *s)
+{
+	char c;
+	while ((c = *s++)) putc(c);
+	return 0;
+}
+
+#if defined(CONFIG_PLAT_M32700UT_Alpha) || defined(CONFIG_PLAT_M32700UT)
+#include <asm/m32r.h>
+#include <asm/io.h>
+
+#define USE_FPGA_MAP	0
+
+#if USE_FPGA_MAP
+/*
+ * fpga configuration program uses MMU, and define map as same as
+ * M32104 uT-Engine board.
+ */
+#define BOOT_SIO0STS	(volatile unsigned short *)(0x02c00000 + 0x20006)
+#define BOOT_SIO0TXB	(volatile unsigned short *)(0x02c00000 + 0x2000c)
+#else
+#undef PLD_BASE
+#define PLD_BASE	0xa4c00000
+#define BOOT_SIO0STS	PLD_ESIO0STS
+#define BOOT_SIO0TXB	PLD_ESIO0TXB
+#endif
+
+static void putc(char c)
+{
+
+	while ((*BOOT_SIO0STS & 0x3) != 0x3) ;
+	if (c == '\n') {
+		*BOOT_SIO0TXB = '\r';
+		while ((*BOOT_SIO0STS & 0x3) != 0x3) ;
+	}
+	*BOOT_SIO0TXB = c;
+}
+#else /* defined(CONFIG_PLAT_M32700UT_Alpha) || defined(CONFIG_PLAT_M32700UT) */
+#ifdef CONFIG_MMU
+#define SIO0STS	(volatile unsigned short *)(0xa0efd000 + 14)
+#define SIO0TXB	(volatile unsigned short *)(0xa0efd000 + 30)
+#else
+#define SIO0STS	(volatile unsigned short *)(0x00efd000 + 14)
+#define SIO0TXB	(volatile unsigned short *)(0x00efd000 + 30)
+#endif
+
+static void putc(char c)
+{
+
+	while ((*SIO0STS & 0x1) == 0) ;
+	if (c == '\n') {
+		*SIO0TXB = '\r';
+		while ((*SIO0STS & 0x1) == 0) ;
+	}
+	*SIO0TXB = c;
+}
+#endif