diff options
Diffstat (limited to 'drivers/serial/bast_sio.c')
| -rw-r--r-- | drivers/serial/bast_sio.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/drivers/serial/bast_sio.c b/drivers/serial/bast_sio.c new file mode 100644 index 000000000000..2b48fab6f0c6 --- /dev/null +++ b/drivers/serial/bast_sio.c @@ -0,0 +1,80 @@ +/* linux/drivers/serial/bast_sio.c + * + * Copyright (c) 2004 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * http://www.simtec.co.uk/products/EB2410ITX/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Modifications: + * 23-Sep-2004 BJD Added copyright header + * 23-Sep-2004 BJD Added serial port remove code +*/ + +#include <linux/module.h> +#include <linux/config.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/tty.h> +#include <linux/serial.h> +#include <linux/serial_core.h> +#include <linux/types.h> + +#include <asm/io.h> +#include <asm/serial.h> +#include <asm/mach-types.h> + +#include <asm/arch/map.h> +#include <asm/arch/irqs.h> +#include <asm/arch/bast-map.h> +#include <asm/arch/bast-irq.h> + +static int __init serial_bast_register(unsigned long port, unsigned int irq) +{ + struct serial_struct serial_req; + + serial_req.flags = UPF_AUTOPROBE | UPF_SHARE_IRQ; + serial_req.baud_base = BASE_BAUD; + serial_req.irq = irq; + serial_req.io_type = UPIO_MEM; + serial_req.iomap_base = port; + serial_req.iomem_base = ioremap(port, 0x10); + serial_req.iomem_reg_shift = 0; + + return register_serial(&serial_req); +} + +#define SERIAL_BASE (S3C2410_CS2 + BAST_PA_SUPERIO) + +static int port[2] = { -1, -1 }; + +static int __init serial_bast_init(void) +{ + if (machine_is_bast()) { + port[0] = serial_bast_register(SERIAL_BASE + 0x2f8, IRQ_PCSERIAL1); + port[1] = serial_bast_register(SERIAL_BASE + 0x3f8, IRQ_PCSERIAL2); + } + + return 0; +} + +static void __exit serial_bast_exit(void) +{ + if (port[0] != -1) + unregister_serial(port[0]); + if (port[1] != -1) + unregister_serial(port[1]); +} + + +module_init(serial_bast_init); +module_exit(serial_bast_exit); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Ben Dooks, ben@simtec.co.uk"); +MODULE_DESCRIPTION("BAST Onboard Serial setup"); + + |