1 files changed, 80 insertions, 0 deletions

diff --git a/arch/mips/sibyte/common/cfe_console.c b/arch/mips/sibyte/common/cfe_console.c
new file mode 100644
index 000000000000..1ad2da103fe9
--- /dev/null
+++ b/arch/mips/sibyte/common/cfe_console.c
@@ -0,0 +1,80 @@
+#include <linux/init.h>
+#include <linux/errno.h>
+#include <linux/console.h>
+
+#include <asm/sibyte/board.h>
+
+#include <asm/fw/cfe/cfe_api.h>
+#include <asm/fw/cfe/cfe_error.h>
+
+extern int cfe_cons_handle;
+
+static void cfe_console_write(struct console *cons, const char *str,
+                       unsigned int count)
+{
+        int i, last, written;
+
+        for (i=0, last=0; i<count; i++) {
+                if (!str[i])
+                        /* XXXKW can/should this ever happen? */
+                        return;
+                if (str[i] == '\n') {
+                        do {
+                                written = cfe_write(cfe_cons_handle, &str[last], i-last);
+                                if (written < 0)
+                                        ;
+                                last += written;
+                        } while (last < i);
+                        while (cfe_write(cfe_cons_handle, "\r", 1) <= 0)
+                                ;
+                }
+        }
+        if (last != count) {
+                do {
+                        written = cfe_write(cfe_cons_handle, &str[last], count-last);
+                        if (written < 0)
+                                ;
+                        last += written;
+                } while (last < count);
+        }
+
+}
+
+static int cfe_console_setup(struct console *cons, char *str)
+{
+        char consdev[32];
+        /* XXXKW think about interaction with 'console=' cmdline arg */
+        /* If none of the console options are configured, the build will break. */
+        if (cfe_getenv("BOOT_CONSOLE", consdev, 32) >= 0) {
+#ifdef CONFIG_SERIAL_SB1250_DUART
+                if (!strcmp(consdev, "uart0")) {
+                        setleds("u0cn");
+                } else if (!strcmp(consdev, "uart1")) {
+                        setleds("u1cn");
+                } else
+#endif
+#ifdef CONFIG_VGA_CONSOLE
+                       if (!strcmp(consdev, "pcconsole0")) {
+                                setleds("pccn");
+                } else
+#endif
+                        return -ENODEV;
+        }
+        return 0;
+}
+
+static struct console sb1250_cfe_cons = {
+        .name           = "cfe",
+        .write          = cfe_console_write,
+        .setup          = cfe_console_setup,
+        .flags          = CON_PRINTBUFFER,
+        .index          = -1,
+};
+
+static int __init sb1250_cfe_console_init(void)
+{
+        register_console(&sb1250_cfe_cons);
+        return 0;
+}
+
+console_initcall(sb1250_cfe_console_init);