Input: i8042 - add SNI RM support

SNI RM200 don't have the i8042 controller connected to the EISA bus,
but have a second address range for onboard devices. This patch handles
the two possible address ranges for the i8042 on SNI RMs.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

2 files changed, 77 insertions, 0 deletions

diff --git a/drivers/input/serio/i8042-snirm.h b/drivers/input/serio/i8042-snirm.h
new file mode 100644
index 000000000000..409a9341143d
--- /dev/null
+++ b/drivers/input/serio/i8042-snirm.h
@@ -0,0 +1,75 @@
+#ifndef _I8042_SNIRM_H
+#define _I8042_SNIRM_H
+
+#include <asm/sni.h>
+
+/*
+ * 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.
+ */
+
+/*
+ * Names.
+ */
+
+#define I8042_KBD_PHYS_DESC "onboard/serio0"
+#define I8042_AUX_PHYS_DESC "onboard/serio1"
+#define I8042_MUX_PHYS_DESC "onboard/serio%d"
+
+/*
+ * IRQs.
+ */
+static int i8042_kbd_irq;
+static int i8042_aux_irq;
+#define I8042_KBD_IRQ i8042_kbd_irq
+#define I8042_AUX_IRQ i8042_aux_irq
+
+static void __iomem *kbd_iobase;
+
+#define I8042_COMMAND_REG       (kbd_iobase + 0x64UL)
+#define I8042_DATA_REG          (kbd_iobase + 0x60UL)
+
+static inline int i8042_read_data(void)
+{
+        return readb(kbd_iobase + 0x60UL);
+}
+
+static inline int i8042_read_status(void)
+{
+        return readb(kbd_iobase + 0x64UL);
+}
+
+static inline void i8042_write_data(int val)
+{
+        writeb(val, kbd_iobase + 0x60UL);
+}
+
+static inline void i8042_write_command(int val)
+{
+        writeb(val, kbd_iobase + 0x64UL);
+}
+static inline int i8042_platform_init(void)
+{
+        /* RM200 is strange ... */
+        if (sni_brd_type == SNI_BRD_RM200) {
+                kbd_iobase = ioremap(0x16000000, 4);
+                i8042_kbd_irq = 33;
+                i8042_aux_irq = 44;
+        } else {
+                kbd_iobase = ioremap(0x14000000, 4);
+                i8042_kbd_irq = 1;
+                i8042_aux_irq = 12;
+        }
+        if (!kbd_iobase)
+                return -ENOMEM;
+
+        return 0;
+}
+
+static inline void i8042_platform_exit(void)
+{
+
+}
+
+#endif /* _I8042_SNIRM_H */
diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h
index c972e5d03a3f..cbc1beb66574 100644
--- a/drivers/input/serio/i8042.h
+++ b/drivers/input/serio/i8042.h
@@ -18,6 +18,8 @@
 #include "i8042-jazzio.h"
 #elif defined(CONFIG_SGI_HAS_I8042)
 #include "i8042-ip22io.h"
+#elif defined(CONFIG_SNI_RM)
+#include "i8042-snirm.h"
 #elif defined(CONFIG_PPC)
 #include "i8042-ppcio.h"
 #elif defined(CONFIG_SPARC)