diff options
Diffstat (limited to 'cpu/arm920t/at91rm9200/serial.c')
| -rw-r--r-- | cpu/arm920t/at91rm9200/serial.c | 113 |
1 files changed, 0 insertions, 113 deletions
diff --git a/cpu/arm920t/at91rm9200/serial.c b/cpu/arm920t/at91rm9200/serial.c deleted file mode 100644 index d563445..0000000 --- a/cpu/arm920t/at91rm9200/serial.c +++ /dev/null @@ -1,113 +0,0 @@ -/* - * (C) Copyright 2002 - * Lineo, Inc <www.lineo.com> - * Bernhard Kuhn <bkuhn@lineo.com> - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Marius Groeger <mgroeger@sysgo.de> - * - * (C) Copyright 2002 - * Sysgo Real-Time Solutions, GmbH <www.elinos.com> - * Alex Zuepke <azu@sysgo.de> - * - * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/hardware.h> - -DECLARE_GLOBAL_DATA_PTR; - -#if !defined(CONFIG_DBGU) && !defined(CONFIG_USART0) && !defined(CONFIG_USART1) -#error must define one of CONFIG_DBGU or CONFIG_USART0 or CONFIG_USART1 -#endif - -/* ggi thunder */ -#ifdef CONFIG_DBGU -AT91PS_USART us = (AT91PS_USART) AT91C_BASE_DBGU; -#endif -#ifdef CONFIG_USART0 -AT91PS_USART us = (AT91PS_USART) AT91C_BASE_US0; -#endif -#ifdef CONFIG_USART1 -AT91PS_USART us = (AT91PS_USART) AT91C_BASE_US1; -#endif - -void serial_setbrg (void) -{ - int baudrate; - - if ((baudrate = gd->baudrate) <= 0) - baudrate = CONFIG_BAUDRATE; - /* MASTER_CLOCK/(16 * baudrate) */ - us->US_BRGR = (AT91C_MASTER_CLOCK >> 4) / (unsigned)baudrate; -} - -int serial_init (void) -{ - /* make any port initializations specific to this port */ -#ifdef CONFIG_DBGU - *AT91C_PIOA_PDR = AT91C_PA31_DTXD | AT91C_PA30_DRXD; /* PA 31 & 30 */ - *AT91C_PMC_PCER = 1 << AT91C_ID_SYS; /* enable clock */ -#endif -#ifdef CONFIG_USART0 - *AT91C_PIOA_PDR = AT91C_PA17_TXD0 | AT91C_PA18_RXD0; - *AT91C_PMC_PCER |= 1 << AT91C_ID_USART0; /* enable clock */ -#endif -#ifdef CONFIG_USART1 - *AT91C_PIOB_PDR = AT91C_PB21_TXD1 | AT91C_PB20_RXD1; - *AT91C_PMC_PCER |= 1 << AT91C_ID_USART1; /* enable clock */ -#endif - serial_setbrg (); - - us->US_CR = AT91C_US_RSTRX | AT91C_US_RSTTX; - us->US_CR = AT91C_US_RXEN | AT91C_US_TXEN; - us->US_MR = - (AT91C_US_CLKS_CLOCK | AT91C_US_CHRL_8_BITS | - AT91C_US_PAR_NONE | AT91C_US_NBSTOP_1_BIT); - us->US_IMR = ~0ul; - return (0); -} - -void serial_putc (const char c) -{ - if (c == '\n') - serial_putc ('\r'); - while ((us->US_CSR & AT91C_US_TXRDY) == 0); - us->US_THR = c; -} - -void serial_puts (const char *s) -{ - while (*s) { - serial_putc (*s++); - } -} - -int serial_getc (void) -{ - while ((us->US_CSR & AT91C_US_RXRDY) == 0); - return us->US_RHR; -} - -int serial_tstc (void) -{ - return ((us->US_CSR & AT91C_US_RXRDY) == AT91C_US_RXRDY); -} |