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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-08-07 09:55:03 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-08-07 09:55:03 +0100
commit4fb8af10d0fd09372d52966b76922b9e82bbc950 (patch)
treed240e4d40357583e3f3eb228dccf20122a5b31ed /arch/sh/boards/mach-cayman/led.c
parentf44f82e8a20b98558486eb14497b2f71c78fa325 (diff)
parent64a99d2a8c3ed5c4e39f3ae1cc682aa8fd3977fc (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes
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);
+}