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4 commits

Author SHA1 Message Date
Thomas Chou
d8a593c68b nios2: add gpio_is_valid 
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Scott McNutt <smcnutt@psyent.com>
 2011-02-08 08:29:53 -05:00
Thomas Chou
e91d54535f nios2: add gpio_free 
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Scott McNutt <smcnutt@psyent.com>
 2011-02-08 08:29:53 -05:00
Thomas Chou
6db6c18b50 nios2: add gpio_request 
This will be used by nand_plat.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Scott McNutt <smcnutt@psyent.com>
 2010-07-12 11:30:51 -04:00
Thomas Chou
cedd341d55 nios2: add gpio support 
This patch adds driver for a trivial gpio core, which is described
in http://nioswiki.com/GPIO. It is used for gpio led and nand flash
interface in u-boot.

When CONFIG_SYS_GPIO_BASE is not defined, board may provide
its own driver.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Tested-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Scott McNutt <smcnutt@psyent.com>
 2010-05-28 10:56:03 -04:00