81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
/* linux/drivers/serial/bast_sio.c
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*
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* Copyright (c) 2004 Simtec Electronics
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* Ben Dooks <ben@simtec.co.uk>
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*
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* http://www.simtec.co.uk/products/EB2410ITX/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Modifications:
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* 23-Sep-2004 BJD Added copyright header
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* 23-Sep-2004 BJD Added serial port remove code
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*/
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#include <linux/module.h>
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#include <linux/config.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/tty.h>
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#include <linux/serial.h>
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#include <linux/serial_core.h>
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#include <linux/types.h>
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#include <asm/io.h>
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#include <asm/serial.h>
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#include <asm/mach-types.h>
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#include <asm/arch/map.h>
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#include <asm/arch/irqs.h>
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#include <asm/arch/bast-map.h>
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#include <asm/arch/bast-irq.h>
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static int __init serial_bast_register(unsigned long port, unsigned int irq)
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{
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struct serial_struct serial_req;
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serial_req.flags = UPF_AUTOPROBE | UPF_SHARE_IRQ;
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serial_req.baud_base = BASE_BAUD;
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serial_req.irq = irq;
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serial_req.io_type = UPIO_MEM;
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serial_req.iomap_base = port;
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serial_req.iomem_base = ioremap(port, 0x10);
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serial_req.iomem_reg_shift = 0;
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return register_serial(&serial_req);
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}
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#define SERIAL_BASE (S3C2410_CS2 + BAST_PA_SUPERIO)
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static int port[2] = { -1, -1 };
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static int __init serial_bast_init(void)
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{
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if (machine_is_bast()) {
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port[0] = serial_bast_register(SERIAL_BASE + 0x2f8, IRQ_PCSERIAL1);
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port[1] = serial_bast_register(SERIAL_BASE + 0x3f8, IRQ_PCSERIAL2);
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}
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return 0;
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}
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static void __exit serial_bast_exit(void)
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{
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if (port[0] != -1)
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unregister_serial(port[0]);
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if (port[1] != -1)
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unregister_serial(port[1]);
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}
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module_init(serial_bast_init);
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module_exit(serial_bast_exit);
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("Ben Dooks, ben@simtec.co.uk");
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MODULE_DESCRIPTION("BAST Onboard Serial setup");
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