diff options
| author | Tom Rix <Tom.Rix@windriver.com> | 2009-05-15 23:48:36 +0200 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2009-06-12 20:39:50 +0200 |
| commit | de193e8e369f5f029ed3b6e2fc60341098eea766 (patch) | |
| tree | 31aa3bdd8990e6f5367370c8261ee09da8634e0f /board/omap3 | |
| parent | 0c872ecd01d6782ae9d37b6eb721404a4a48f356 (diff) | |
ZOOM2 Add support for debug board detection.
The logicpd web site is a good source for general information on this board.
Please start looking here if the below links are broken.
http://www.logicpd.com
This is a pdf of the product
http://www.logicpd.com/sites/default/files/1012659A_Zoom_OMAP34x-II_MDP_Brief.pdf
This is a pdf of the product quick start guide.
The debug board is described here.
http://support.logicpd.com/downloads/1165/
This is a wiki showing the debug board in use
https://omapzoom.org/gf/project/omapzoom/wiki/?pagename=GettingStartedWithZoomII_AKA_OMAP34XII_MDP
The zoom2 has an auxillary board that contains the serial, net, jtag and
battery simulator. This change supports a runtime check if the debug board is
connected.
Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
Diffstat (limited to 'board/omap3')
| -rw-r--r-- | board/omap3/zoom2/Makefile | 3 | ||||
| -rw-r--r-- | board/omap3/zoom2/debug_board.c | 59 |
2 files changed, 61 insertions, 1 deletions
diff --git a/board/omap3/zoom2/Makefile b/board/omap3/zoom2/Makefile index 088b8cb01d..b8fa5a78bb 100644 --- a/board/omap3/zoom2/Makefile +++ b/board/omap3/zoom2/Makefile @@ -25,7 +25,8 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(BOARD).a -COBJS := zoom2.o +COBJS := zoom2.o \ + debug_board.o SRCS := $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(COBJS)) diff --git a/board/omap3/zoom2/debug_board.c b/board/omap3/zoom2/debug_board.c new file mode 100644 index 0000000000..a4ddf29294 --- /dev/null +++ b/board/omap3/zoom2/debug_board.c @@ -0,0 +1,59 @@ +/* + * Copyright (c) 2009 Wind River Systems, Inc. + * Tom Rix <Tom.Rix@windriver.com> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ +#include <common.h> +#include <asm/arch/cpu.h> +#include <asm/io.h> +#include <asm/arch/mux.h> +#include <asm/arch/gpio.h> + +#define DEBUG_BOARD_CONNECTED 1 +#define DEBUG_BOARD_NOT_CONNECTED 0 + +static int debug_board_connected = DEBUG_BOARD_CONNECTED; + +static void zoom2_debug_board_detect (void) +{ + int val = 0; + + if (!omap_request_gpio(158)) { + /* + * GPIO to query for debug board + * 158 db board query + */ + omap_set_gpio_direction(158, 1); + val = omap_get_gpio_datain(158); + omap_free_gpio(158); + } + + if (!val) + debug_board_connected = DEBUG_BOARD_NOT_CONNECTED; +} + +int zoom2_debug_board_connected (void) +{ + static int first_time = 1; + + if (first_time) { + zoom2_debug_board_detect (); + first_time = 0; + } + return debug_board_connected; +} |