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/*
* Routines common to most mpc85xx-based boards.
*
* This 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/of_irq.h>
#include <linux/of_platform.h>
#include <asm/qe.h>
#include <sysdev/cpm2_pic.h>
#include "mpc85xx.h"
static struct of_device_id __initdata mpc85xx_common_ids[] = {
{ .type = "soc", },
{ .compatible = "soc", },
{ .compatible = "simple-bus", },
{ .name = "cpm", },
{ .name = "localbus", },
{ .compatible = "gianfar", },
{ .compatible = "fsl,qe", },
{ .compatible = "fsl,cpm2", },
{ .compatible = "fsl,srio", },
/* So that the DMA channel nodes can be probed individually: */
{ .compatible = "fsl,eloplus-dma", },
/* For the PMC driver */
{ .compatible = "fsl,mpc8548-guts", },
/* Probably unnecessary? */
{ .compatible = "gpio-leds", },
/* For all PCI controllers */
{ .compatible = "fsl,mpc8540-pci", },
{ .compatible = "fsl,mpc8548-pcie", },
{ .compatible = "fsl,p1022-pcie", },
{ .compatible = "fsl,p1010-pcie", },
{ .compatible = "fsl,p1023-pcie", },
{ .compatible = "fsl,p4080-pcie", },
{ .compatible = "fsl,qoriq-pcie-v2.4", },
{ .compatible = "fsl,qoriq-pcie-v2.3", },
{ .compatible = "fsl,qoriq-pcie-v2.2", },
{},
};
int __init mpc85xx_common_publish_devices(void)
{
return of_platform_bus_probe(NULL, mpc85xx_common_ids, NULL);
}
#ifdef CONFIG_CPM2
static void cpm2_cascade(unsigned int irq, struct irq_desc *desc)
{
struct irq_chip *chip = irq_desc_get_chip(desc);
int cascade_irq;
while ((cascade_irq = cpm2_get_irq()) >= 0)
generic_handle_irq(cascade_irq);
chip->irq_eoi(&desc->irq_data);
}
void __init mpc85xx_cpm2_pic_init(void)
{
struct device_node *np;
int irq;
/* Setup CPM2 PIC */
np = of_find_compatible_node(NULL, NULL, "fsl,cpm2-pic");
if (np == NULL) {
printk(KERN_ERR "PIC init: can not find fsl,cpm2-pic node\n");
return;
}
irq = irq_of_parse_and_map(np, 0);
if (irq == NO_IRQ) {
of_node_put(np);
printk(KERN_ERR "PIC init: got no IRQ for cpm cascade\n");
return;
}
cpm2_pic_init(np);
of_node_put(np);
irq_set_chained_handler(irq, cpm2_cascade);
}
#endif
#ifdef CONFIG_QUICC_ENGINE
void __init mpc85xx_qe_init(void)
{
struct device_node *np;
np = of_find_compatible_node(NULL, NULL, "fsl,qe");
if (!np) {
np = of_find_node_by_name(NULL, "qe");
if (!np) {
pr_err("%s: Could not find Quicc Engine node\n",
__func__);
return;
}
}
if (!of_device_is_available(np)) {
of_node_put(np);
return;
}
qe_reset();
of_node_put(np);
np = of_find_node_by_name(NULL, "par_io");
if (np) {
struct device_node *ucc;
par_io_init(np);
of_node_put(np);
for_each_node_by_name(ucc, "ucc")
par_io_of_config(ucc);
}
}
#endif
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