Hi Tom,
Tom Rix wrote:
https://omapzoom.org/gf/project/omapzoom/wiki/?pagename=GettingStartedWithZo...
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
board/omap3/zoom2/Makefile | 3 +- board/omap3/zoom2/debug_board.c | 57 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 59 insertions(+), 1 deletions(-) create mode 100644 board/omap3/zoom2/debug_board.c
diff --git a/board/omap3/zoom2/Makefile b/board/omap3/zoom2/Makefile index 088b8cb..b8fa5a7 100644 --- a/board/omap3/zoom2/Makefile +++ b/board/omap3/zoom2/Makefile @@ -25,7 +25,8 @@ include $(TOPDIR)/config.mk
...
--- /dev/null +++ b/board/omap3/zoom2/debug_board.c
...
+static void zoom2_debug_board_detect (void) +{
- unsigned int val;
- /*
* GPIO to query for debug board* 158 db board query, bank 5, index 30*/- gpio_t *gpio5_base = (gpio_t *) OMAP34XX_GPIO5_BASE;
- val = __raw_readl (&gpio5_base->datain);
Is there any special reason why you use __raw_readl() instead of just readl() here? Looking at ARM's io.h, they seem to map to the same macro?
Best regards
Dirk