95 lines
3 KiB
C
95 lines
3 KiB
C
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/*
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* Registration of Lasat UART platform device.
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*
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* Copyright (C) 2007 Brian Murphy <brian@murphy.dk>
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/ioport.h>
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#include <linux/platform_device.h>
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#include <linux/serial_8250.h>
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#include <asm/bootinfo.h>
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#include <asm/lasat/lasat.h>
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#include <asm/lasat/serial.h>
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static struct resource lasat_serial_res[2] __initdata;
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static struct plat_serial8250_port lasat_serial8250_port[] = {
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{
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.iotype = UPIO_MEM,
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.flags = UPF_IOREMAP | UPF_BOOT_AUTOCONF |
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UPF_SKIP_TEST,
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},
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{},
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};
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static __init int lasat_uart_add(void)
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{
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struct platform_device *pdev;
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int retval;
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pdev = platform_device_alloc("serial8250", -1);
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if (!pdev)
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return -ENOMEM;
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if (mips_machtype == MACH_LASAT_100) {
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lasat_serial_res[0].start = KSEG1ADDR(LASAT_UART_REGS_BASE_100);
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lasat_serial_res[0].end = lasat_serial_res[0].start + LASAT_UART_REGS_SHIFT_100 * 8 - 1;
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lasat_serial_res[0].flags = IORESOURCE_MEM;
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lasat_serial_res[1].start = LASATINT_UART_100;
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lasat_serial_res[1].end = LASATINT_UART_100;
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lasat_serial_res[1].flags = IORESOURCE_IRQ;
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lasat_serial8250_port[0].mapbase = LASAT_UART_REGS_BASE_100;
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lasat_serial8250_port[0].uartclk = LASAT_BASE_BAUD_100 * 16;
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lasat_serial8250_port[0].regshift = LASAT_UART_REGS_SHIFT_100;
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lasat_serial8250_port[0].irq = LASATINT_UART_100;
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} else {
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lasat_serial_res[0].start = KSEG1ADDR(LASAT_UART_REGS_BASE_200);
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lasat_serial_res[0].end = lasat_serial_res[0].start + LASAT_UART_REGS_SHIFT_200 * 8 - 1;
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lasat_serial_res[0].flags = IORESOURCE_MEM;
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lasat_serial_res[1].start = LASATINT_UART_200;
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lasat_serial_res[1].end = LASATINT_UART_200;
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lasat_serial_res[1].flags = IORESOURCE_IRQ;
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lasat_serial8250_port[0].mapbase = LASAT_UART_REGS_BASE_200;
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lasat_serial8250_port[0].uartclk = LASAT_BASE_BAUD_200 * 16;
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lasat_serial8250_port[0].regshift = LASAT_UART_REGS_SHIFT_200;
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lasat_serial8250_port[0].irq = LASATINT_UART_200;
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}
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pdev->id = PLAT8250_DEV_PLATFORM;
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pdev->dev.platform_data = lasat_serial8250_port;
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retval = platform_device_add_resources(pdev, lasat_serial_res, ARRAY_SIZE(lasat_serial_res));
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if (retval)
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goto err_free_device;
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retval = platform_device_add(pdev);
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if (retval)
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goto err_free_device;
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return 0;
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err_free_device:
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platform_device_put(pdev);
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return retval;
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}
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device_initcall(lasat_uart_add);
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