[PATCH 9/9] ARM Chumby: Add list of available GPIOs and their meaning
Juergen Beisert
jbe at pengutronix.de
Tue Dec 21 06:25:21 EST 2010
Signed-off-by: Juergen Beisert <jbe at pengutronix.de>
---
arch/arm/boards/chumby_falconwing/falconwing.c | 85 ++++++++++++++++++++++++
1 files changed, 85 insertions(+), 0 deletions(-)
diff --git a/arch/arm/boards/chumby_falconwing/falconwing.c b/arch/arm/boards/chumby_falconwing/falconwing.c
index f5ed133..76ff906 100644
--- a/arch/arm/boards/chumby_falconwing/falconwing.c
+++ b/arch/arm/boards/chumby_falconwing/falconwing.c
@@ -390,4 +390,89 @@ make ARCH=arm CROSS_COMPILE=armv5compiler
partition or you can do it in the classic way: mkfs on it, mount it and copy
all required data and programs into it.
+ at section gpio_falconwing Available GPIOs
+
+The Falconwing uses some GPIOs to control various features. With the regular
+GPIO commands these features can be controlled at @a barebox's runtime.
+
+<table width="100%" border="1" cellspacing="1" cellpadding="3">
+ <tr>
+ <td>No</td>
+ <td>Direction</td>
+ <td>Function</td>
+ <td>Reset</td>
+ <td>Set</td>
+ </tr>
+ <tr>
+ <td>8</td>
+ <td>Output</td>
+ <td>Switch Audio Amplifier</td>
+ <td>Off</td>
+ <td>On</td>
+ </tr>
+ <tr>
+ <td>11</td>
+ <td>Input</td>
+ <td>Head Phone Detection</td>
+ <td>TBD</td>
+ <td>TBD</td>
+ </tr>
+ <tr>
+ <td>14</td>
+ <td>Input</td>
+ <td>Unused (J113)</td>
+ <td>User</td>
+ <td>User</td>
+ </tr>
+ <tr>
+ <td>15</td>
+ <td>Input</td>
+ <td>Unused (J114)</td>
+ <td>User</td>
+ <td>User</td>
+ </tr>
+ <tr>
+ <td>26</td>
+ <td>Output</td>
+ <td>USB Power</td>
+ <td>TBD</td>
+ <td>TBD</td>
+ </tr>
+ <tr>
+ <td>27</td>
+ <td>Input</td>
+ <td>Display Connected</td>
+ <td>Display<br>Attached</td>
+ <td>Display<br>Disconnected</td>
+ </tr>
+ <tr>
+ <td>29</td>
+ <td>Output</td>
+ <td>USB HUB Reset</td>
+ <td>TBD</td>
+ <td>TBD</td>
+ </tr>
+ <tr>
+ <td>50</td>
+ <td>Output</td>
+ <td>Display Reset</td>
+ <td>Display<br>Reset</td>
+ <td>Display<br>Running</td>
+ </tr>
+ <tr>
+ <td>60</td>
+ <td>Output</td>
+ <td>Display Backlight</td>
+ <td>Backlight<br>Off</td>
+ <td>Backlight<br>On (100 %)</td>
+ </tr>
+ <tr>
+ <td>62</td>
+ <td>Input</td>
+ <td>Bend</td>
+ <td>Not pressed</td>
+ <td>Pressed</td>
+ </tr>
+</table>
+
*/
--
1.7.2.3
More information about the barebox
mailing list