| Haavard Skinnemoen | 5f97f7f | 2006-09-25 23:32:13 -0700 | [diff] [blame^] | 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 | |
| 19 | struct at32_sm system_manager; |
| 20 | |
| 21 | static 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 | |
| 41 | fail: |
| 42 | printk(KERN_ERR "Failed to initialize System Manager: %d\n", ret); |
| 43 | return ret; |
| 44 | } |
| 45 | |
| 46 | void __init setup_platform(void) |
| 47 | { |
| 48 | at32_sm_init(); |
| 49 | at32_clock_init(); |
| 50 | at32_portmux_init(); |
| 51 | |
| 52 | /* FIXME: This doesn't belong here */ |
| 53 | at32_setup_serial_console(1); |
| 54 | } |
| 55 | |
| 56 | static int __init pdc_probe(struct platform_device *pdev) |
| 57 | { |
| 58 | struct clk *pclk, *hclk; |
| 59 | |
| 60 | pclk = clk_get(&pdev->dev, "pclk"); |
| 61 | if (IS_ERR(pclk)) { |
| 62 | dev_err(&pdev->dev, "no pclk defined\n"); |
| 63 | return PTR_ERR(pclk); |
| 64 | } |
| 65 | hclk = clk_get(&pdev->dev, "hclk"); |
| 66 | if (IS_ERR(hclk)) { |
| 67 | dev_err(&pdev->dev, "no hclk defined\n"); |
| 68 | clk_put(pclk); |
| 69 | return PTR_ERR(hclk); |
| 70 | } |
| 71 | |
| 72 | clk_enable(pclk); |
| 73 | clk_enable(hclk); |
| 74 | |
| 75 | dev_info(&pdev->dev, "Atmel Peripheral DMA Controller enabled\n"); |
| 76 | return 0; |
| 77 | } |
| 78 | |
| 79 | static struct platform_driver pdc_driver = { |
| 80 | .probe = pdc_probe, |
| 81 | .driver = { |
| 82 | .name = "pdc", |
| 83 | }, |
| 84 | }; |
| 85 | |
| 86 | static int __init pdc_init(void) |
| 87 | { |
| 88 | return platform_driver_register(&pdc_driver); |
| 89 | } |
| 90 | arch_initcall(pdc_init); |