Merge commit 'v2.6.35' into kbuild/kbuild
[pandora-kernel.git] / arch / arm / mach-ns9xxx / plat-serial8250.c
1 /*
2  * arch/arm/mach-ns9xxx/plat-serial8250.c
3  *
4  * Copyright (C) 2008 by Digi International Inc.
5  * All rights reserved.
6  *
7  * This program is free software; you can redistribute it and/or modify it
8  * under the terms of the GNU General Public License version 2 as published by
9  * the Free Software Foundation.
10  */
11 #include <linux/platform_device.h>
12 #include <linux/serial_8250.h>
13 #include <linux/slab.h>
14
15 #include <mach/regs-board-a9m9750dev.h>
16 #include <mach/board.h>
17
18 #define DRIVER_NAME "serial8250"
19
20 static int __init ns9xxx_plat_serial8250_init(void)
21 {
22         struct plat_serial8250_port *pdata;
23         struct platform_device *pdev;
24         int ret = -ENOMEM;
25         int i;
26
27         if (!board_is_a9m9750dev())
28                 return -ENODEV;
29
30         pdev = platform_device_alloc(DRIVER_NAME, 0);
31         if (!pdev)
32                 goto err;
33
34         pdata = kzalloc(5 * sizeof(*pdata), GFP_KERNEL);
35         if (!pdata)
36                 goto err;
37
38         pdev->dev.platform_data = pdata;
39
40         pdata[0].iobase = FPGA_UARTA_BASE;
41         pdata[1].iobase = FPGA_UARTB_BASE;
42         pdata[2].iobase = FPGA_UARTC_BASE;
43         pdata[3].iobase = FPGA_UARTD_BASE;
44
45         for (i = 0; i < 4; ++i) {
46                 pdata[i].membase = (void __iomem *)pdata[i].iobase;
47                 pdata[i].mapbase = pdata[i].iobase;
48                 pdata[i].iotype = UPIO_MEM;
49                 pdata[i].uartclk = 18432000;
50                 pdata[i].flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
51         }
52
53         pdata[0].irq = IRQ_FPGA_UARTA;
54         pdata[1].irq = IRQ_FPGA_UARTB;
55         pdata[2].irq = IRQ_FPGA_UARTC;
56         pdata[3].irq = IRQ_FPGA_UARTD;
57
58         ret = platform_device_add(pdev);
59         if (ret) {
60 err:
61                 platform_device_put(pdev);
62
63                 printk(KERN_WARNING "Could not add %s (errno=%d)\n",
64                                 DRIVER_NAME, ret);
65         }
66
67         return 0;
68 }
69
70 arch_initcall(ns9xxx_plat_serial8250_init);