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Diffstat (limited to 'kernel/arch/mips/sgi-ip27/ip27-console.c')
-rw-r--r--kernel/arch/mips/sgi-ip27/ip27-console.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/kernel/arch/mips/sgi-ip27/ip27-console.c b/kernel/arch/mips/sgi-ip27/ip27-console.c
new file mode 100644
index 000000000..45fdfbcbd
--- /dev/null
+++ b/kernel/arch/mips/sgi-ip27/ip27-console.c
@@ -0,0 +1,39 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001, 2002 Ralf Baechle
+ */
+
+#include <asm/page.h>
+#include <asm/sn/addrs.h>
+#include <asm/sn/sn0/hub.h>
+#include <asm/sn/klconfig.h>
+#include <asm/sn/ioc3.h>
+#include <asm/sn/sn_private.h>
+
+#include <linux/serial.h>
+#include <linux/serial_core.h>
+
+#define IOC3_CLK (22000000 / 3)
+#define IOC3_FLAGS (0)
+
+static inline struct ioc3_uartregs *console_uart(void)
+{
+ struct ioc3 *ioc3;
+ nasid_t nasid;
+
+ nasid = (master_nasid == INVALID_NASID) ? get_nasid() : master_nasid;
+ ioc3 = (struct ioc3 *)KL_CONFIG_CH_CONS_INFO(nasid)->memory_base;
+
+ return &ioc3->sregs.uarta;
+}
+
+void prom_putchar(char c)
+{
+ struct ioc3_uartregs *uart = console_uart();
+
+ while ((uart->iu_lsr & 0x20) == 0);
+ uart->iu_thr = c;
+}