X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=doc%2FREADME.omap3;h=6227151f8e974878459ea05ad92ce1ba0c2415a7;hb=5ccc2d99d61c81805348b0cd9f79731b271f7daf;hp=1ba307fa02f6f512d5371014d213e73dda069332;hpb=7379f45a7bc71941c3920c2f6b3c3faa4d7fd315;p=u-boot

diff --git a/doc/README.omap3 b/doc/README.omap3
index 1ba307fa02..6227151f8e 100644
--- a/doc/README.omap3
+++ b/doc/README.omap3
@@ -19,6 +19,8 @@ Currently the following boards are supported:
 
 * TI/Logic PD Zoom MDK [6]
 
+* TI/Logic PD Zoom 2 [7]
+
 Toolchain
 =========
 
@@ -54,6 +56,11 @@ make
 make omap3_zoom1_config
 make
 
+* Zoom 2:
+
+make omap3_zoom2_config
+make
+
 Custom commands
 ===============
 
@@ -77,10 +84,42 @@ For all other commands see
 
 help
 
+Interfaces
+==========
+
+gpio
+
+To set a bit :
+
+	if (!omap_request_gpio(N)) {
+		omap_set_gpio_direction(N, 0);
+		omap_set_gpio_dataout(N, 1);
+	}
+
+To clear a bit :
+
+	if (!omap_request_gpio(N)) {
+		omap_set_gpio_direction(N, 0);
+		omap_set_gpio_dataout(N, 0);
+	}
+
+To read a bit :
+
+	if (!omap_request_gpio(N)) {
+		omap_set_gpio_direction(N, 1);
+		val = omap_get_gpio_datain(N);
+		omap_free_gpio(N);
+	}
+	if (val)
+		printf("GPIO N is set\n");
+	else
+		printf("GPIO N is clear\n");
+
+
 Acknowledgements
 ================
 
-OMAP3 U-Boot is based on U-Boot tar ball [7] for BeagleBoard and EVM done by
+OMAP3 U-Boot is based on U-Boot tar ball [8] for BeagleBoard and EVM done by
 several TI employees.
 
 Links
@@ -111,6 +150,9 @@ http://openpandora.org/
 
 http://www.logicpd.com/products/devkit/ti/zoom_mobile_development_kit
 
-[7] TI OMAP3 U-Boot:
+[7] TI/Logic PD Zoom 2
+
+http://www.logicpd.com/sites/default/files/1012659A_Zoom_OMAP34x-II_MDP_Brief.pdf
+[8] TI OMAP3 U-Boot:
 
 http://beagleboard.googlecode.com/files/u-boot_beagle_revb.tar.gz