/*
* This file is subject to the terms and conditions of the GNU General Public
* License . See the file " COPYING " in the main directory of this archive
* for more details .
*
* Copyright ( C ) 2007 Ralf Baechle ( ralf @ linux - mips . org )
*
* Copyright ( C ) 2009 Lemote , Inc .
* Author : Yan hua ( yanhua @ lemote . com )
* Author : Wu Zhangjin ( wuzhangjin @ gmail . com )
*/
#include <linux/io.h>
#include <linux/module.h>
#include <linux/serial_8250.h>
#include <asm /bootinfo.h>
#include <loongson.h>
#include <machine.h>
#define PORT(int , clk) \
{ \
.irq = int , \
.uartclk = clk, \
.iotype = UPIO_PORT, \
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, \
.regshift = 0 , \
}
#define PORT_M(int , clk) \
{ \
.irq = MIPS_CPU_IRQ_BASE + (int ), \
.uartclk = clk, \
.iotype = UPIO_MEM, \
.membase = (void __iomem *)NULL, \
.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, \
.regshift = 0 , \
}
static struct plat_serial8250_port uart8250_data[MACH_LOONGSON_END + 1 ] = {
[MACH_LOONGSON_UNKNOWN] = {},
[MACH_LEMOTE_FL2E] = PORT(4 , 1843200 ),
[MACH_LEMOTE_FL2F] = PORT(3 , 1843200 ),
[MACH_LEMOTE_ML2F7] = PORT_M(3 , 3686400 ),
[MACH_LEMOTE_YL2F89] = PORT_M(3 , 3686400 ),
[MACH_DEXXON_GDIUM2F10] = PORT_M(3 , 3686400 ),
[MACH_LEMOTE_NAS] = PORT_M(3 , 3686400 ),
[MACH_LEMOTE_LL2F] = PORT(3 , 1843200 ),
[MACH_LOONGSON_END] = {},
};
static struct platform_device uart8250_device = {
.name = "serial8250" ,
.id = PLAT8250_DEV_PLATFORM,
};
static int __init serial_init(void )
{
unsigned char iotype;
iotype = uart8250_data[mips_machtype].iotype;
if (UPIO_MEM == iotype) {
uart8250_data[mips_machtype].mapbase =
loongson_uart_base;
uart8250_data[mips_machtype].membase =
(void __iomem *)_loongson_uart_base;
}
else if (UPIO_PORT == iotype)
uart8250_data[mips_machtype].iobase =
loongson_uart_base - LOONGSON_PCIIO_BASE;
memset(&uart8250_data[mips_machtype + 1 ], 0 ,
sizeof (struct plat_serial8250_port));
uart8250_device.dev.platform_data = &uart8250_data[mips_machtype];
return platform_device_register(&uart8250_device);
}
module_init(serial_init);
static void __exit serial_exit(void )
{
platform_device_unregister(&uart8250_device);
}
module_exit(serial_exit);
Messung V0.5 in Prozent C=99 H=93 G=95
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-10-01)
¤
*© Formatika GbR, Deutschland