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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
1e8e9bad2d nios2: add gpio support to nios2-generic board 
This patch adds gpio support of Altera PIO component to the
nios2-generic board. Though it drives only gpio_led at the
moment, it supports bidirectional port to control bit-banging
I2C, NAND flash busy status or button switches, etc.

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