| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* linux/drivers/serial/bast_sio.c |
| 2 | * |
| 3 | * Copyright (c) 2004 Simtec Electronics |
| 4 | * Ben Dooks <ben@simtec.co.uk> |
| 5 | * |
| 6 | * http://www.simtec.co.uk/products/EB2410ITX/ |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | * |
| 12 | * Modifications: |
| 13 | * 23-Sep-2004 BJD Added copyright header |
| 14 | * 23-Sep-2004 BJD Added serial port remove code |
| 15 | */ |
| 16 | |
| 17 | #include <linux/module.h> |
| 18 | #include <linux/config.h> |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/init.h> |
| 21 | #include <linux/tty.h> |
| 22 | #include <linux/serial.h> |
| 23 | #include <linux/serial_core.h> |
| 24 | #include <linux/types.h> |
| 25 | |
| 26 | #include <asm/io.h> |
| 27 | #include <asm/serial.h> |
| 28 | #include <asm/mach-types.h> |
| 29 | |
| 30 | #include <asm/arch/map.h> |
| 31 | #include <asm/arch/irqs.h> |
| 32 | #include <asm/arch/bast-map.h> |
| 33 | #include <asm/arch/bast-irq.h> |
| 34 | |
| 35 | static int __init serial_bast_register(unsigned long port, unsigned int irq) |
| 36 | { |
| 37 | struct serial_struct serial_req; |
| 38 | |
| 39 | serial_req.flags = UPF_AUTOPROBE | UPF_SHARE_IRQ; |
| 40 | serial_req.baud_base = BASE_BAUD; |
| 41 | serial_req.irq = irq; |
| 42 | serial_req.io_type = UPIO_MEM; |
| 43 | serial_req.iomap_base = port; |
| 44 | serial_req.iomem_base = ioremap(port, 0x10); |
| 45 | serial_req.iomem_reg_shift = 0; |
| 46 | |
| 47 | return register_serial(&serial_req); |
| 48 | } |
| 49 | |
| 50 | #define SERIAL_BASE (S3C2410_CS2 + BAST_PA_SUPERIO) |
| 51 | |
| 52 | static int port[2] = { -1, -1 }; |
| 53 | |
| 54 | static int __init serial_bast_init(void) |
| 55 | { |
| 56 | if (machine_is_bast()) { |
| 57 | port[0] = serial_bast_register(SERIAL_BASE + 0x2f8, IRQ_PCSERIAL1); |
| 58 | port[1] = serial_bast_register(SERIAL_BASE + 0x3f8, IRQ_PCSERIAL2); |
| 59 | } |
| 60 | |
| 61 | return 0; |
| 62 | } |
| 63 | |
| 64 | static void __exit serial_bast_exit(void) |
| 65 | { |
| 66 | if (port[0] != -1) |
| 67 | unregister_serial(port[0]); |
| 68 | if (port[1] != -1) |
| 69 | unregister_serial(port[1]); |
| 70 | } |
| 71 | |
| 72 | |
| 73 | module_init(serial_bast_init); |
| 74 | module_exit(serial_bast_exit); |
| 75 | |
| 76 | MODULE_LICENSE("GPL"); |
| 77 | MODULE_AUTHOR("Ben Dooks, ben@simtec.co.uk"); |
| 78 | MODULE_DESCRIPTION("BAST Onboard Serial setup"); |
| 79 | |
| 80 | |