Hi Tom, Tom Rix wrote: > 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 <[email protected]> > --- > 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 _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
