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author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-08-07 09:55:03 +0100 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-08-07 09:55:03 +0100 |
commit | 4fb8af10d0fd09372d52966b76922b9e82bbc950 (patch) | |
tree | d240e4d40357583e3f3eb228dccf20122a5b31ed /arch/sh/boards/mach-cayman/led.c | |
parent | f44f82e8a20b98558486eb14497b2f71c78fa325 (diff) | |
parent | 64a99d2a8c3ed5c4e39f3ae1cc682aa8fd3977fc (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.c | 51 |
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); +} |