This patch implements i8042 driver for unicore32 architecture.
Changes from V1:
Move i8042-ucio.h to drivers/input/serio/i8042-unicore32io.h.
Move puv3_ps2_init() to arch/unicore32/kernel/puv3-core.c.
Remove unused comments.
Remove request_region and release_region for I8042_DATA_REG.
Signed-off-by: Guan Xuetao <gxt@xxxxxxxxxxxxxxx>
---
drivers/input/serio/i8042-unicore32io.h | 66 +++++++++++++++++++++++++++++++
drivers/input/serio/i8042.h | 2 +
2 files changed, 68 insertions(+), 0 deletions(-)
diff --git a/drivers/input/serio/i8042-unicore32io.h b/drivers/input/serio/i8042-unicore32io.h
new file mode 100644
index 0000000..74ab8aa
--- /dev/null
+++ b/drivers/input/serio/i8042-unicore32io.h
@@ -0,0 +1,66 @@
+/*
+ * Code specific to PKUnity SoC and UniCore ISA
+ *
+ * Maintained by GUAN Xue-tao <gxt@xxxxxxxxxxxxxxx>
+ * Copyright (C) 2001-2011 Guan Xuetao
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _I8042_UNICORE32_H
+#define _I8042_UNICORE32_H
+
+#include <mach/hardware.h>
+
+/*
+ * Names.
+ */
+#define I8042_KBD_PHYS_DESC "isa0060/serio0"
+#define I8042_AUX_PHYS_DESC "isa0060/serio1"
+#define I8042_MUX_PHYS_DESC "isa0060/serio%d"
+
+/*
+ * IRQs.
+ */
+#define I8042_KBD_IRQ IRQ_PS2_KBD
+#define I8042_AUX_IRQ IRQ_PS2_AUX
+
+/*
+ * Register numbers.
+ */
+#define I8042_COMMAND_REG ((unsigned long)&PS2_COMMAND)
+#define I8042_STATUS_REG ((unsigned long)&PS2_STATUS)
+#define I8042_DATA_REG ((unsigned long)&PS2_DATA)
+
+static inline int i8042_read_data(void)
+{
+ return inb(I8042_DATA_REG);
+}
+
+static inline int i8042_read_status(void)
+{
+ return inb(I8042_STATUS_REG);
+}
+
+static inline void i8042_write_data(int val)
+{
+ outb(val, I8042_DATA_REG);
+}
+
+static inline void i8042_write_command(int val)
+{
+ outb(val, I8042_COMMAND_REG);
+}
+
+static inline int i8042_platform_init(void)
+{
+ i8042_reset = 1;
+ return 0;
+}
+
+static inline void i8042_platform_exit(void)
+{
+}
+
+#endif /* _I8042_UNICORE32_H */
diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h
index cbc1beb..e0fe4af 100644
--- a/drivers/input/serio/i8042.h
+++ b/drivers/input/serio/i8042.h
@@ -26,6 +26,8 @@
#include "i8042-sparcio.h"
#elif defined(CONFIG_X86) || defined(CONFIG_IA64)
#include "i8042-x86ia64io.h"
+#elif defined(CONFIG_UNICORE32)
+#include "i8042-unicore32io.h"
#else
#include "i8042-io.h"
#endif
--
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