projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| e8be5283 WZ |
1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public | |
| 3 | * License. See the file "COPYING" in the main directory of this archive | |
| 4 | * for more details. | |
| 5 | * | |
| 6 | * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org) | |
| 7 | * | |
| 8 | * Copyright (C) 2009 Lemote, Inc. | |
| 9 | * Author: Yan hua (yanhua@lemote.com) | |
| 10 | * Author: Wu Zhangjin (wuzj@lemote.com) | |
| 11 | */ | |
| 12 | ||
| 13 | #include <linux/io.h> | |
| 14 | #include <linux/init.h> | |
| 15 | #include <linux/serial_8250.h> | |
| 16 | ||
| 17 | #include <asm/bootinfo.h> | |
| 18 | ||
| 19 | #include <loongson.h> | |
| 20 | #include <machine.h> | |
| 21 | ||
| 22 | #define PORT(int) \ | |
| 23 | { \ | |
| 24 | .irq = int, \ | |
| 25 | .uartclk = 1843200, \ | |
| e8be5283 WZ |
26 | .iotype = UPIO_PORT, \ |
| 27 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, \ | |
| 28 | .regshift = 0, \ | |
| 29 | } | |
| 30 | ||
| 31 | #define PORT_M(int) \ | |
| 32 | { \ | |
| 33 | .irq = MIPS_CPU_IRQ_BASE + (int), \ | |
| 34 | .uartclk = 3686400, \ | |
| 35 | .iotype = UPIO_MEM, \ | |
| 36 | .membase = (void __iomem *)NULL, \ | |
| 37 | .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, \ | |
| 38 | .regshift = 0, \ | |
| 39 | } | |
| 40 | ||
| 41 | static struct plat_serial8250_port uart8250_data[][2] = { | |
| 42 | [MACH_LOONGSON_UNKNOWN] {}, | |
| 43 | [MACH_LEMOTE_FL2E] {PORT(4), {} }, | |
| 44 | [MACH_LEMOTE_FL2F] {PORT(3), {} }, | |
| 45 | [MACH_LEMOTE_ML2F7] {PORT_M(3), {} }, | |
| 46 | [MACH_LEMOTE_YL2F89] {PORT_M(3), {} }, | |
| 47 | [MACH_DEXXON_GDIUM2F10] {PORT_M(3), {} }, | |
| e13fb776 | 48 | [MACH_LEMOTE_NAS] {PORT_M(3), {} }, |
| 6e552c9b | 49 | [MACH_LEMOTE_LL2F] {PORT(3), {} }, |
| e8be5283 WZ |
50 | [MACH_LOONGSON_END] {}, |
| 51 | }; | |
| 52 | ||
| 53 | static struct platform_device uart8250_device = { | |
| 54 | .name = "serial8250", | |
| 55 | .id = PLAT8250_DEV_PLATFORM, | |
| e8be5283 WZ |
56 | }; |
| 57 | ||
| 58 | static int __init serial_init(void) | |
| 59 | { | |
| c3d8d850 WZ |
60 | unsigned char iotype; |
| 61 | ||
| 62 | iotype = uart8250_data[mips_machtype][0].iotype; | |
| 63 | ||
| 64 | if (UPIO_MEM == iotype) | |
| a3ed4951 WZ |
65 | uart8250_data[mips_machtype][0].membase = |
| 66 | (void __iomem *)_loongson_uart_base; | |
| c3d8d850 | 67 | else if (UPIO_PORT == iotype) |
| a3ed4951 | 68 | uart8250_data[mips_machtype][0].iobase = |
| c3d8d850 | 69 | loongson_uart_base - LOONGSON_PCIIO_BASE; |
| e8be5283 | 70 | |
| a3ed4951 | 71 | uart8250_device.dev.platform_data = uart8250_data[mips_machtype]; |
| e8be5283 | 72 | |
| a3ed4951 | 73 | return platform_device_register(&uart8250_device); |
| e8be5283 WZ |
74 | } |
| 75 | ||
| 76 | device_initcall(serial_init); |