aboutsummaryrefslogtreecommitdiff
path: root/arch/mips/cobalt/console.c
diff options
context:
space:
mode:
authorMeizu OpenSource <patchwork@meizu.com>2016-08-15 10:19:42 +0800
committerMeizu OpenSource <patchwork@meizu.com>2016-08-15 10:19:42 +0800
commitd2e1446d81725c351dc73a03b397ce043fb18452 (patch)
tree4dbc616b7f92aea39cd697a9084205ddb805e344 /arch/mips/cobalt/console.c
first commit
Diffstat (limited to 'arch/mips/cobalt/console.c')
-rw-r--r--arch/mips/cobalt/console.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/mips/cobalt/console.c b/arch/mips/cobalt/console.c
new file mode 100644
index 000000000..d1ba701c9
--- /dev/null
+++ b/arch/mips/cobalt/console.c
@@ -0,0 +1,20 @@
+/*
+ * (C) P. Horton 2006
+ */
+#include <linux/io.h>
+#include <linux/serial_reg.h>
+
+#include <cobalt.h>
+
+#define UART_BASE ((void __iomem *)CKSEG1ADDR(0x1c800000))
+
+void prom_putchar(char c)
+{
+ if (cobalt_board_id <= COBALT_BRD_ID_QUBE1)
+ return;
+
+ while (!(readb(UART_BASE + UART_LSR) & UART_LSR_THRE))
+ ;
+
+ writeb(c, UART_BASE + UART_TX);
+}