diff options
Diffstat (limited to 'target/linux/aruba-2.6/files/arch/mips/aruba/serial.c')
| -rw-r--r-- | target/linux/aruba-2.6/files/arch/mips/aruba/serial.c | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/target/linux/aruba-2.6/files/arch/mips/aruba/serial.c b/target/linux/aruba-2.6/files/arch/mips/aruba/serial.c new file mode 100644 index 0000000000..ec21867d17 --- /dev/null +++ b/target/linux/aruba-2.6/files/arch/mips/aruba/serial.c @@ -0,0 +1,94 @@ +/************************************************************************** + * + * BRIEF MODULE DESCRIPTION + * Serial port initialisation. + * + * Copyright 2004 IDT Inc. (rischelp@idt.com) + * + * 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 SOFTWARE IS PROVIDED ``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 THE AUTHOR 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. + * + * 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., + * 675 Mass Ave, Cambridge, MA 02139, USA. + * + * + ************************************************************************** + * May 2004 rkt, neb + * + * Initial Release + * + * + * + ************************************************************************** + */ + + +#include <linux/autoconf.h> +#include <linux/init.h> +#include <linux/sched.h> +#include <linux/pci.h> +#include <linux/interrupt.h> +#include <linux/tty.h> +#include <linux/serial.h> +#include <linux/serial_core.h> + +#include <asm/time.h> +#include <asm/cpu.h> +#include <asm/bootinfo.h> +#include <asm/irq.h> +#include <asm/serial.h> + +#include <asm/idt-boards/rc32434/rc32434.h> + +extern int __init early_serial_setup(struct uart_port *port); + +#define BASE_BAUD (1843200 / 16) + +extern unsigned int idt_cpu_freq; + +extern int __init setup_serial_port(void) +{ + static struct uart_port serial_req[2]; + + memset(serial_req, 0, sizeof(serial_req)); + serial_req[0].type = PORT_16550A; + serial_req[0].line = 0; + serial_req[0].flags = STD_COM_FLAGS; + serial_req[0].iotype = SERIAL_IO_MEM; + serial_req[0].regshift = 2; + + switch (mips_machtype) { + case MACH_ARUBA_AP70: + serial_req[0].irq = 104; + serial_req[0].mapbase = KSEG1ADDR(0x18058003); + serial_req[0].membase = (char *) KSEG1ADDR(0x18058003); + serial_req[0].uartclk = idt_cpu_freq; + break; + case MACH_ARUBA_AP65: + case MACH_ARUBA_AP60: + default: + serial_req[0].irq = 12; + serial_req[0].mapbase = KSEG1ADDR(0xbc000003); + serial_req[0].membase = (char *) KSEG1ADDR(0xbc000003); + serial_req[0].uartclk = idt_cpu_freq / 2; + break; + } + + early_serial_setup(&serial_req[0]); + + return(0); +} |