| board_hl200.c (238189) | board_hl200.c (238415) |
|---|---|
| 1/*- 2 * Copyright (c) 2005-2008 Olivier Houchard. All rights reserved. | 1/*- 2 * Copyright (c) 2005-2008 Olivier Houchard. All rights reserved. |
| 3 * Copyright (c) 2005-2008 Warner Losh. All rights reserved. | 3 * Copyright (c) 2005-2012 Warner Losh. All rights reserved. |
| 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the --- 8 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> | 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the --- 8 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> |
| 28__FBSDID("$FreeBSD: head/sys/arm/at91/board_hl200.c 238189 2012-07-07 05:02:39Z imp $"); | 28__FBSDID("$FreeBSD: head/sys/arm/at91/board_hl200.c 238415 2012-07-13 04:22:08Z imp $"); |
| 29#include <sys/param.h> 30#include <sys/systm.h> 31 32#include <machine/board.h> 33#include <arm/at91/at91board.h> | 29#include <sys/param.h> 30#include <sys/systm.h> 31 32#include <machine/board.h> 33#include <arm/at91/at91board.h> |
| 34#include <arm/at91/at91var.h> |
|
| 34#include <arm/at91/at91rm92reg.h> | 35#include <arm/at91/at91rm92reg.h> |
| 36#include <arm/at91/at91rm9200var.h> |
|
| 35#include <arm/at91/at91_piovar.h> 36#include <arm/at91/at91_pio_rm9200.h> 37 38BOARD_INIT long 39board_init(void) 40{ | 37#include <arm/at91/at91_piovar.h> 38#include <arm/at91/at91_pio_rm9200.h> 39 40BOARD_INIT long 41board_init(void) 42{ |
| 43 44 at91rm9200_set_subtype(AT91_ST_RM9200_BGA); 45 |
|
| 41 /* 42 * Since the USART supports RS-485 multidrop mode, it allows the 43 * TX pins to float. However, for RS-232 operations, we don't want 44 * these pins to float. Instead, they should be pulled up to avoid 45 * mismatches. Linux does something similar when it configures the 46 * TX lines. This implies that we also allow the RX lines to float 47 * rather than be in the state they are left in by the boot loader. 48 * Since they are input pins, I think that this is the right thing --- 18 unchanged lines hidden --- | 46 /* 47 * Since the USART supports RS-485 multidrop mode, it allows the 48 * TX pins to float. However, for RS-232 operations, we don't want 49 * these pins to float. Instead, they should be pulled up to avoid 50 * mismatches. Linux does something similar when it configures the 51 * TX lines. This implies that we also allow the RX lines to float 52 * rather than be in the state they are left in by the boot loader. 53 * Since they are input pins, I think that this is the right thing --- 18 unchanged lines hidden --- |