/* * Serial Device Initialisation for Au1x00 * * (C) Copyright Embedded Alley Solutions, Inc 2005 * Author: Pantelis Antoniou <pantelis@embeddedalley.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. */ #include <linux/errno.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/ioport.h> #include <linux/module.h> #include <linux/serial_core.h> #include <linux/signal.h> #include <linux/slab.h> #include <linux/types.h> #include <linux/serial_8250.h> #include <asm/mach-au1x00/au1000.h> #include "8250.h" #define PORT(_base, _irq) \ { \ .iobase = _base, \ .membase = (void __iomem *)_base,\ .mapbase = CPHYSADDR(_base), \ .irq = _irq, \ .uartclk = 0, /* filled */ \ .regshift = 2, \ .iotype = UPIO_AU, \ .flags = UPF_SKIP_TEST \ } static struct plat_serial8250_port au1x00_data[] = { #if defined(CONFIG_SOC_AU1000) PORT(UART0_ADDR, AU1000_UART0_INT), PORT(UART1_ADDR, AU1000_UART1_INT), PORT(UART2_ADDR, AU1000_UART2_INT), PORT(UART3_ADDR, AU1000_UART3_INT), #elif defined(CONFIG_SOC_AU1500) PORT(UART0_ADDR, AU1500_UART0_INT), PORT(UART3_ADDR, AU1500_UART3_INT), #elif defined(CONFIG_SOC_AU1100) PORT(UART0_ADDR, AU1100_UART0_INT), PORT(UART1_ADDR, AU1100_UART1_INT), /* The internal UART2 does not exist on the AU1100 processor. */ PORT(UART3_ADDR, AU1100_UART3_INT), #elif defined(CONFIG_SOC_AU1550) PORT(UART0_ADDR, AU1550_UART0_INT), PORT(UART1_ADDR, AU1550_UART1_INT), PORT(UART3_ADDR, AU1550_UART3_INT), #elif defined(CONFIG_SOC_AU1200) PORT(UART0_ADDR, AU1200_UART0_INT), PORT(UART1_ADDR, AU1200_UART1_INT), #endif { }, }; static struct platform_device au1x00_device = { .name = "serial8250", .id = PLAT8250_DEV_AU1X00, .dev = { .platform_data = au1x00_data, }, }; static int __init au1x00_init(void) { int i; unsigned int uartclk; /* get uart clock */ uartclk = get_au1x00_uart_baud_base() * 16; /* fill up uartclk */ for (i = 0; au1x00_data[i].flags ; i++) au1x00_data[i].uartclk = uartclk; return platform_device_register(&au1x00_device); } /* XXX: Yes, I know this doesn't yet work. */ static void __exit au1x00_exit(void) { platform_device_unregister(&au1x00_device); } module_init(au1x00_init); module_exit(au1x00_exit); MODULE_AUTHOR("Pantelis Antoniou <pantelis@embeddedalley.com>"); MODULE_DESCRIPTION("8250 serial probe module for Au1x000 cards"); MODULE_LICENSE("GPL");