84 lines
1.8 KiB
C
84 lines
1.8 KiB
C
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/*
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* Copyright (C) 2007,2008 Freescale Semiconductor, Inc. All rights reserved.
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*
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* Author: John Rigby <jrigby@freescale.com>
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*
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* Description:
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* MPC512x Shared code
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*
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* This is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/kernel.h>
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#include <linux/io.h>
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#include <linux/irq.h>
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#include <linux/of_platform.h>
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#include <asm/machdep.h>
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#include <asm/ipic.h>
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#include <asm/prom.h>
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#include <asm/time.h>
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#include "mpc512x.h"
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unsigned long
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mpc512x_find_ips_freq(struct device_node *node)
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{
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struct device_node *np;
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const unsigned int *p_ips_freq = NULL;
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of_node_get(node);
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while (node) {
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p_ips_freq = of_get_property(node, "bus-frequency", NULL);
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if (p_ips_freq)
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break;
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np = of_get_parent(node);
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of_node_put(node);
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node = np;
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}
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if (node)
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of_node_put(node);
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return p_ips_freq ? *p_ips_freq : 0;
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}
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EXPORT_SYMBOL(mpc512x_find_ips_freq);
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void __init mpc512x_init_IRQ(void)
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{
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struct device_node *np;
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np = of_find_compatible_node(NULL, NULL, "fsl,mpc5121-ipic");
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if (!np)
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return;
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ipic_init(np, 0);
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of_node_put(np);
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/*
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* Initialize the default interrupt mapping priorities,
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* in case the boot rom changed something on us.
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*/
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ipic_set_default_priority();
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}
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/*
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* Nodes to do bus probe on, soc and localbus
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*/
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static struct of_device_id __initdata of_bus_ids[] = {
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{ .compatible = "fsl,mpc5121-immr", },
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{ .compatible = "fsl,mpc5121-localbus", },
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{},
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};
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void __init mpc512x_declare_of_platform_devices(void)
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{
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if (of_platform_bus_probe(NULL, of_bus_ids, NULL))
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printk(KERN_ERR __FILE__ ": "
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"Error while probing of_platform bus\n");
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}
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