91 lines
1.8 KiB
C
91 lines
1.8 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2006 Atmel Corporation
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License version 2 as
|
||
|
|
* published by the Free Software Foundation.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/clk.h>
|
||
|
|
#include <linux/err.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
#include <linux/platform_device.h>
|
||
|
|
|
||
|
|
#include <asm/io.h>
|
||
|
|
|
||
|
|
#include <asm/arch/init.h>
|
||
|
|
#include <asm/arch/sm.h>
|
||
|
|
|
||
|
|
struct at32_sm system_manager;
|
||
|
|
|
||
|
|
static int __init at32_sm_init(void)
|
||
|
|
{
|
||
|
|
struct resource *regs;
|
||
|
|
struct at32_sm *sm = &system_manager;
|
||
|
|
int ret = -ENXIO;
|
||
|
|
|
||
|
|
regs = platform_get_resource(&at32_sm_device, IORESOURCE_MEM, 0);
|
||
|
|
if (!regs)
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
spin_lock_init(&sm->lock);
|
||
|
|
sm->pdev = &at32_sm_device;
|
||
|
|
|
||
|
|
ret = -ENOMEM;
|
||
|
|
sm->regs = ioremap(regs->start, regs->end - regs->start + 1);
|
||
|
|
if (!sm->regs)
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
fail:
|
||
|
|
printk(KERN_ERR "Failed to initialize System Manager: %d\n", ret);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
void __init setup_platform(void)
|
||
|
|
{
|
||
|
|
at32_sm_init();
|
||
|
|
at32_clock_init();
|
||
|
|
at32_portmux_init();
|
||
|
|
|
||
|
|
/* FIXME: This doesn't belong here */
|
||
|
|
at32_setup_serial_console(1);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int __init pdc_probe(struct platform_device *pdev)
|
||
|
|
{
|
||
|
|
struct clk *pclk, *hclk;
|
||
|
|
|
||
|
|
pclk = clk_get(&pdev->dev, "pclk");
|
||
|
|
if (IS_ERR(pclk)) {
|
||
|
|
dev_err(&pdev->dev, "no pclk defined\n");
|
||
|
|
return PTR_ERR(pclk);
|
||
|
|
}
|
||
|
|
hclk = clk_get(&pdev->dev, "hclk");
|
||
|
|
if (IS_ERR(hclk)) {
|
||
|
|
dev_err(&pdev->dev, "no hclk defined\n");
|
||
|
|
clk_put(pclk);
|
||
|
|
return PTR_ERR(hclk);
|
||
|
|
}
|
||
|
|
|
||
|
|
clk_enable(pclk);
|
||
|
|
clk_enable(hclk);
|
||
|
|
|
||
|
|
dev_info(&pdev->dev, "Atmel Peripheral DMA Controller enabled\n");
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static struct platform_driver pdc_driver = {
|
||
|
|
.probe = pdc_probe,
|
||
|
|
.driver = {
|
||
|
|
.name = "pdc",
|
||
|
|
},
|
||
|
|
};
|
||
|
|
|
||
|
|
static int __init pdc_init(void)
|
||
|
|
{
|
||
|
|
return platform_driver_register(&pdc_driver);
|
||
|
|
}
|
||
|
|
arch_initcall(pdc_init);
|