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86 lines
2.2 KiB
86 lines
2.2 KiB
/* |
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* This file is subject to the terms and conditions of the GNU General Public |
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* License. See the file "COPYING" in the main directory of this archive |
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* for more details. |
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* |
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* Copyright (C) 2007 Ralf Baechle ([email protected]) |
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* |
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* Copyright (C) 2009 Lemote, Inc. |
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* Author: Yan hua ([email protected]) |
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* Author: Wu Zhangjin ([email protected]) |
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*/ |
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#include <linux/io.h> |
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#include <linux/module.h> |
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#include <linux/serial_8250.h> |
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#include <asm/bootinfo.h> |
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#include <loongson.h> |
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#include <machine.h> |
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#define PORT(int, clk) \ |
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{ \ |
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.irq = int, \ |
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.uartclk = clk, \ |
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.iotype = UPIO_PORT, \ |
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.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, \ |
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.regshift = 0, \ |
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} |
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#define PORT_M(int, clk) \ |
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{ \ |
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.irq = MIPS_CPU_IRQ_BASE + (int), \ |
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.uartclk = clk, \ |
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.iotype = UPIO_MEM, \ |
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.membase = (void __iomem *)NULL, \ |
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.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, \ |
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.regshift = 0, \ |
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} |
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static struct plat_serial8250_port uart8250_data[MACH_LOONGSON_END + 1] = { |
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[MACH_LOONGSON_UNKNOWN] = {}, |
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[MACH_LEMOTE_FL2E] = PORT(4, 1843200), |
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[MACH_LEMOTE_FL2F] = PORT(3, 1843200), |
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[MACH_LEMOTE_ML2F7] = PORT_M(3, 3686400), |
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[MACH_LEMOTE_YL2F89] = PORT_M(3, 3686400), |
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[MACH_DEXXON_GDIUM2F10] = PORT_M(3, 3686400), |
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[MACH_LEMOTE_NAS] = PORT_M(3, 3686400), |
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[MACH_LEMOTE_LL2F] = PORT(3, 1843200), |
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[MACH_LOONGSON_END] = {}, |
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}; |
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static struct platform_device uart8250_device = { |
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.name = "serial8250", |
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.id = PLAT8250_DEV_PLATFORM, |
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}; |
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static int __init serial_init(void) |
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{ |
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unsigned char iotype; |
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iotype = uart8250_data[mips_machtype].iotype; |
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if (UPIO_MEM == iotype) { |
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uart8250_data[mips_machtype].mapbase = |
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loongson_uart_base; |
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uart8250_data[mips_machtype].membase = |
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(void __iomem *)_loongson_uart_base; |
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} |
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else if (UPIO_PORT == iotype) |
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uart8250_data[mips_machtype].iobase = |
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loongson_uart_base - LOONGSON_PCIIO_BASE; |
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memset(&uart8250_data[mips_machtype + 1], 0, |
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sizeof(struct plat_serial8250_port)); |
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uart8250_device.dev.platform_data = &uart8250_data[mips_machtype]; |
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return platform_device_register(&uart8250_device); |
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} |
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module_init(serial_init); |
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static void __exit serial_exit(void) |
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{ |
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platform_device_unregister(&uart8250_device); |
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} |
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module_exit(serial_exit);
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