This will allow to dump all pin configuration in a nice table
and if the bank/pin is specified the pin details

barebox@Atmel at91sam9x5-ek:/
Pin     PIOA            PIOB            PIOC            PIOD

0:      [gpio] set      [periph A]      [gpio] set      [periph A]
1:      [periph A]      [periph A]      [gpio] set      [periph A]
2:      [gpio] set      [periph A]      [gpio] set      [periph A]
3:      [gpio] set      [periph A]      [gpio] set      [periph A]
4:      [gpio] set      [periph A]      [gpio] set      [gpio] clear
5:      [gpio] set      [periph A]      [gpio] set      [gpio] set
6:      [gpio] set      [periph A]      [gpio] set      [periph A]
7:      [gpio] set      [periph A]      [gpio] set      [periph A]
8:      [gpio] set      [gpio] set      [gpio] set      [periph A]
9:      [periph A]      [periph A]      [gpio] set      [periph A]
10:     [periph A]      [periph A]      [gpio] set      [periph A]
11:     [periph A]      [gpio] set      [gpio] set      [periph A]
12:     [periph A]      [gpio] set      [gpio] set      [periph A]
13:     [periph A]      [gpio] clear    [gpio] set      [periph A]
14:     [gpio] set      [gpio] clear    [gpio] set      [gpio] set
15:     [periph A]      [gpio] set      [gpio] set      [gpio] set
16:     [periph A]      [gpio] set      [gpio] clear    [periph A]
17:     [periph A]      [gpio] set      [gpio] set      [periph A]
18:     [periph A]      [gpio] set      [gpio] set      [periph A]
19:     [periph A]      [periph A]      [gpio] set      [gpio] set
20:     [periph A]      [periph A]      [gpio] clear    [gpio] set
21:     [gpio] set      [periph A]      [gpio] clear    [gpio] clear
22:     [gpio] set      [periph A]      [gpio] set      [periph A]
23:     [gpio] set      [periph A]      [gpio] set      [periph A]
24:     [gpio] set      [periph A]      [gpio] set      [periph A]
25:     [gpio] set      [periph A]      [gpio] set      [periph A]
26:     [gpio] set      [periph A]      [gpio] set      [periph A]
27:     [gpio] clear    [periph A]      [gpio] set      [periph A]
28:     [gpio] set      [periph A]      [gpio] clear    [periph A]
29:     [gpio] set      [periph A]      [gpio] set      [periph A]
30:     [gpio] set      [periph A]      [gpio] set      [periph A]
31:     [gpio] set      [periph A]      [gpio] set      [periph A]
barebox@Atmel at91sam9x5-ek:/
pioA27 configuration

[gpio] clear
multidrive = disable
pullup = disable
degitch = disable
debounce = disable
pulldown = enable
schmitt trigger = enable

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>