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210b94e8 UKK |
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 | ||
a09e64fb RK |
14 | #include <mach/regs-board-a9m9750dev.h> |
15 | #include <mach/board.h> | |
210b94e8 UKK |
16 | |
17 | #define DRIVER_NAME "serial8250" | |
18 | ||
19 | static int __init ns9xxx_plat_serial8250_init(void) | |
20 | { | |
21 | struct plat_serial8250_port *pdata; | |
22 | struct platform_device *pdev; | |
23 | int ret = -ENOMEM; | |
24 | int i; | |
25 | ||
26 | if (!board_is_a9m9750dev()) | |
27 | return -ENODEV; | |
28 | ||
29 | pdev = platform_device_alloc(DRIVER_NAME, 0); | |
30 | if (!pdev) | |
31 | goto err; | |
32 | ||
33 | pdata = kzalloc(5 * sizeof(*pdata), GFP_KERNEL); | |
34 | if (!pdata) | |
35 | goto err; | |
36 | ||
37 | pdev->dev.platform_data = pdata; | |
38 | ||
39 | pdata[0].iobase = FPGA_UARTA_BASE; | |
40 | pdata[1].iobase = FPGA_UARTB_BASE; | |
41 | pdata[2].iobase = FPGA_UARTC_BASE; | |
42 | pdata[3].iobase = FPGA_UARTD_BASE; | |
43 | ||
44 | for (i = 0; i < 4; ++i) { | |
45 | pdata[i].membase = (void __iomem *)pdata[i].iobase; | |
46 | pdata[i].mapbase = pdata[i].iobase; | |
47 | pdata[i].iotype = UPIO_MEM; | |
48 | pdata[i].uartclk = 18432000; | |
49 | pdata[i].flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ; | |
50 | } | |
51 | ||
52 | pdata[0].irq = IRQ_FPGA_UARTA; | |
53 | pdata[1].irq = IRQ_FPGA_UARTB; | |
54 | pdata[2].irq = IRQ_FPGA_UARTC; | |
55 | pdata[3].irq = IRQ_FPGA_UARTD; | |
56 | ||
57 | ret = platform_device_add(pdev); | |
58 | if (ret) { | |
59 | err: | |
60 | platform_device_put(pdev); | |
61 | ||
62 | printk(KERN_WARNING "Could not add %s (errno=%d)\n", | |
63 | DRIVER_NAME, ret); | |
64 | } | |
65 | ||
66 | return 0; | |
67 | } | |
68 | ||
69 | arch_initcall(ns9xxx_plat_serial8250_init); |