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authorBen Dooks <ben-linux@fluff.org>2008-08-08 21:10:12 +0100
committerBen Dooks <ben-linux@fluff.org>2008-08-08 21:10:12 +0100
commitaf7a535688a758d15f06a98833e6a143b29af9de (patch)
treebac5ab210bbbbe276f0e44ed84194d7c8bb16aae /arch/sh/boards/mach-cayman/led.c
parent0c17e4ceedd35c78b1c7413dbd16279a350be6bc (diff)
parentc41107c2d4fd31924533f4dbc4c3428acc2b5894 (diff)
Merge http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm into for-rmk
Diffstat (limited to 'arch/sh/boards/mach-cayman/led.c')
-rw-r--r--arch/sh/boards/mach-cayman/led.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/sh/boards/mach-cayman/led.c b/arch/sh/boards/mach-cayman/led.c
new file mode 100644
index 00000000000..a808eac4ecd
--- /dev/null
+++ b/arch/sh/boards/mach-cayman/led.c
@@ -0,0 +1,51 @@
+/*
+ * arch/sh/boards/cayman/led.c
+ *
+ * Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License. See linux/COPYING for more information.
+ *
+ * Flash the LEDs
+ */
+#include <asm/io.h>
+
+/*
+** It is supposed these functions to be used for a low level
+** debugging (via Cayman LEDs), hence to be available as soon
+** as possible.
+** Unfortunately Cayman LEDs relies on Cayman EPLD to be mapped
+** (this happen when IRQ are initialized... quite late).
+** These triky dependencies should be removed. Temporary, it
+** may be enough to NOP until EPLD is mapped.
+*/
+
+extern unsigned long epld_virt;
+
+#define LED_ADDR (epld_virt + 0x008)
+#define HDSP2534_ADDR (epld_virt + 0x100)
+
+void mach_led(int position, int value)
+{
+ if (!epld_virt)
+ return;
+
+ if (value)
+ ctrl_outl(0, LED_ADDR);
+ else
+ ctrl_outl(1, LED_ADDR);
+
+}
+
+void mach_alphanum(int position, unsigned char value)
+{
+ if (!epld_virt)
+ return;
+
+ ctrl_outb(value, HDSP2534_ADDR + 0xe0 + (position << 2));
+}
+
+void mach_alphanum_brightness(int setting)
+{
+ ctrl_outb(setting & 7, HDSP2534_ADDR + 0xc0);
+}