diff options
Diffstat (limited to 'board/overo/overo.c')
| -rw-r--r-- | board/overo/overo.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/board/overo/overo.c b/board/overo/overo.c index e85be7d..1c7087b 100644 --- a/board/overo/overo.c +++ b/board/overo/overo.c @@ -61,6 +61,37 @@ int board_init(void) } /* + * Routine: get_board_revision + * Description: Returns the board revision + */ +int get_board_revision(void) +{ + int revision; + + if (!omap_request_gpio(112) && + !omap_request_gpio(113) && + !omap_request_gpio(115)) { + + omap_set_gpio_direction(112, 1); + omap_set_gpio_direction(113, 1); + omap_set_gpio_direction(115, 1); + + revision = omap_get_gpio_datain(115) << 2 | + omap_get_gpio_datain(113) << 1 | + omap_get_gpio_datain(112); + + omap_free_gpio(112); + omap_free_gpio(113); + omap_free_gpio(115); + } else { + printf("Error: unable to acquire board revision GPIOs\n"); + revision = -1; + } + + return revision; +} + +/* * Routine: misc_init_r * Description: Configure board specific parts */ @@ -73,6 +104,7 @@ int misc_init_r(void) setup_net_chip(); #endif + printf("Board revision: %d\n", get_board_revision()); dieid_num_r(); return 0; |