1/*
2 * Copyright (C) 2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9#include <linux/clk.h>
10#include <linux/err.h>
11#include <linux/init.h>
12#include <linux/platform_device.h>
13
14#include <asm/io.h>
15
16#include <asm/arch/init.h>
17#include <asm/arch/sm.h>
18
19struct at32_sm system_manager;
20
21static int __init at32_sm_init(void)
22{
23	struct resource *regs;
24	struct at32_sm *sm = &system_manager;
25	int ret = -ENXIO;
26
27	regs = platform_get_resource(&at32_sm_device, IORESOURCE_MEM, 0);
28	if (!regs)
29		goto fail;
30
31	spin_lock_init(&sm->lock);
32	sm->pdev = &at32_sm_device;
33
34	ret = -ENOMEM;
35	sm->regs = ioremap(regs->start, regs->end - regs->start + 1);
36	if (!sm->regs)
37		goto fail;
38
39	return 0;
40
41fail:
42	printk(KERN_ERR "Failed to initialize System Manager: %d\n", ret);
43	return ret;
44}
45
46void __init setup_platform(void)
47{
48	at32_sm_init();
49	at32_clock_init();
50	at32_portmux_init();
51}
52
53static int __init pdc_probe(struct platform_device *pdev)
54{
55	struct clk *pclk, *hclk;
56
57	pclk = clk_get(&pdev->dev, "pclk");
58	if (IS_ERR(pclk)) {
59		dev_err(&pdev->dev, "no pclk defined\n");
60		return PTR_ERR(pclk);
61	}
62	hclk = clk_get(&pdev->dev, "hclk");
63	if (IS_ERR(hclk)) {
64		dev_err(&pdev->dev, "no hclk defined\n");
65		clk_put(pclk);
66		return PTR_ERR(hclk);
67	}
68
69	clk_enable(pclk);
70	clk_enable(hclk);
71
72	dev_info(&pdev->dev, "Atmel Peripheral DMA Controller enabled\n");
73	return 0;
74}
75
76static struct platform_driver pdc_driver = {
77	.probe		= pdc_probe,
78	.driver		= {
79		.name	= "pdc",
80	},
81};
82
83static int __init pdc_init(void)
84{
85	return platform_driver_register(&pdc_driver);
86}
87arch_initcall(pdc_init);
88