diff options
Diffstat (limited to 'sys/arm/at91/uart_cpu_at91usart.c')
-rw-r--r-- | sys/arm/at91/uart_cpu_at91usart.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/sys/arm/at91/uart_cpu_at91usart.c b/sys/arm/at91/uart_cpu_at91usart.c new file mode 100644 index 000000000000..39f146cc5698 --- /dev/null +++ b/sys/arm/at91/uart_cpu_at91usart.c @@ -0,0 +1,90 @@ +/*- + * Copyright (c) 2003 Marcel Moolenaar + * Copyright (c) 2006 M. Warner Losh + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "opt_platform.h" +#include "opt_uart.h" + +#ifndef FDT +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/cons.h> +#include <sys/lock.h> +#include <sys/mutex.h> +#include <machine/bus.h> + +#include <dev/uart/uart.h> +#include <dev/uart/uart_bus.h> +#include <dev/uart/uart_cpu.h> + +#include <arm/at91/at91var.h> + +bus_space_tag_t uart_bus_space_io; +bus_space_tag_t uart_bus_space_mem; + +extern struct uart_class at91_usart_class; + +int +uart_cpu_eqres(struct uart_bas *b1, struct uart_bas *b2) +{ + return ((b1->bsh == b2->bsh && b1->bst == b2->bst) ? 1 : 0); +} + +int +uart_cpu_getdev(int devtype, struct uart_devinfo *di) +{ + struct uart_class *class; + + class = &at91_usart_class; + if (class->uc_rclk == 0 && at91_master_clock != 0) + class->uc_rclk = at91_master_clock; + di->ops = uart_getops(class); + di->bas.chan = 0; + di->bas.bst = arm_base_bs_tag; + /* + * XXX: Not pretty, but will work because we map the needed addresses + * early. At least we probed this so that the console will work on + * all flavors of Atmel we can detect. + */ + di->bas.bsh = soc_info.dbgu_base; + di->baudrate = 115200; + di->bas.regshft = 0; + di->bas.rclk = 0; + di->databits = 8; + di->stopbits = 1; + di->parity = UART_PARITY_NONE; + uart_bus_space_io = arm_base_bs_tag; + uart_bus_space_mem = NULL; + /* Check the environment for overrides */ + uart_getenv(devtype, di, class); + return (0); +} +#endif |