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/*
* Copyright (C) Freescale Semicondutor, Inc. 2006-2007. All rights reserved.
*
* Author: Andy Fleming <afleming@freescale.com>
*
* Based on 83xx/mpc8360e_pb.c by:
* Li Yang <LeoLi@freescale.com>
* Yin Olivia <Hong-hua.Yin@freescale.com>
*
* Description:
* MPC85xx MDS board specific routines.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/stddef.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/errno.h>
#include <linux/reboot.h>
#include <linux/pci.h>
#include <linux/kdev_t.h>
#include <linux/major.h>
#include <linux/console.h>
#include <linux/delay.h>
#include <linux/seq_file.h>
#include <linux/initrd.h>
#include <linux/module.h>
#include <linux/fsl_devices.h>
#include <asm/of_device.h>
#include <asm/of_platform.h>
#include <asm/system.h>
#include <asm/atomic.h>
#include <asm/time.h>
#include <asm/io.h>
#include <asm/machdep.h>
#include <asm/bootinfo.h>
#include <asm/pci-bridge.h>
#include <asm/mpc85xx.h>
#include <asm/irq.h>
#include <mm/mmu_decl.h>
#include <asm/prom.h>
#include <asm/udbg.h>
#include <sysdev/fsl_soc.h>
#include <sysdev/fsl_pci.h>
#include <asm/qe.h>
#include <asm/qe_ic.h>
#include <asm/mpic.h>
#include "mpc85xx.h"
#undef DEBUG
#ifdef DEBUG
#define DBG(fmt...) udbg_printf(fmt)
#else
#define DBG(fmt...)
#endif
/* ************************************************************************
*
* Setup the architecture
*
*/
static void __init mpc85xx_mds_setup_arch(void)
{
struct device_node *np;
static u8 *bcsr_regs = NULL;
if (ppc_md.progress)
ppc_md.progress("mpc85xx_mds_setup_arch()", 0);
np = of_find_node_by_type(NULL, "cpu");
if (np != NULL) {
const unsigned int *fp =
of_get_property(np, "clock-frequency", NULL);
if (fp != NULL)
loops_per_jiffy = *fp / HZ;
else
loops_per_jiffy = 50000000 / HZ;
of_node_put(np);
}
/* Map BCSR area */
np = of_find_node_by_name(NULL, "bcsr");
if (np != NULL) {
struct resource res;
of_address_to_resource(np, 0, &res);
bcsr_regs = ioremap(res.start, res.end - res.start +1);
of_node_put(np);
}
#ifdef CONFIG_PCI
for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
fsl_add_bridge(np, 1);
of_node_put(np);
#endif
#ifdef CONFIG_QUICC_ENGINE
if ((np = of_find_node_by_name(NULL, "qe")) != NULL) {
qe_reset();
of_node_put(np);
}
if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) {
struct device_node *ucc = NULL;
par_io_init(np);
of_node_put(np);
for ( ;(ucc = of_find_node_by_name(ucc, "ucc")) != NULL;)
par_io_of_config(ucc);
of_node_put(ucc);
}
if (bcsr_regs) {
u8 bcsr_phy;
/* Reset the Ethernet PHY */
bcsr_phy = in_be8(&bcsr_regs[9]);
bcsr_phy &= ~0x20;
out_be8(&bcsr_regs[9], bcsr_phy);
udelay(1000);
bcsr_phy = in_be8(&bcsr_regs[9]);
bcsr_phy |= 0x20;
out_be8(&bcsr_regs[9], bcsr_phy);
iounmap(bcsr_regs);
}
#endif /* CONFIG_QUICC_ENGINE */
}
static struct of_device_id mpc85xx_ids[] = {
{ .type = "soc", },
{ .compatible = "soc", },
{ .type = "qe", },
{},
};
static int __init mpc85xx_publish_devices(void)
{
if (!machine_is(mpc85xx_mds))
return 0;
/* Publish the QE devices */
of_platform_bus_probe(NULL,mpc85xx_ids,NULL);
return 0;
}
device_initcall(mpc85xx_publish_devices);
static void __init mpc85xx_mds_pic_init(void)
{
struct mpic *mpic;
struct resource r;
struct device_node *np = NULL;
np = of_find_node_by_type(NULL, "open-pic");
if (!np)
return;
if (of_address_to_resource(np, 0, &r)) {
printk(KERN_ERR "Failed to map mpic register space\n");
of_node_put(np);
return;
}
mpic = mpic_alloc(np, r.start,
MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
0, 256, " OpenPIC ");
BUG_ON(mpic == NULL);
of_node_put(np);
mpic_init(mpic);
#ifdef CONFIG_QUICC_ENGINE
np = of_find_node_by_type(NULL, "qeic");
if (!np)
return;
qe_ic_init(np, 0);
of_node_put(np);
#endif /* CONFIG_QUICC_ENGINE */
}
static int __init mpc85xx_mds_probe(void)
{
unsigned long root = of_get_flat_dt_root();
return of_flat_dt_is_compatible(root, "MPC85xxMDS");
}
define_machine(mpc85xx_mds) {
.name = "MPC85xx MDS",
.probe = mpc85xx_mds_probe,
.setup_arch = mpc85xx_mds_setup_arch,
.init_IRQ = mpc85xx_mds_pic_init,
.get_irq = mpic_get_irq,
.restart = mpc85xx_restart,
.calibrate_decr = generic_calibrate_decr,
.progress = udbg_progress,
.pcibios_fixup_bus = fsl_pcibios_fixup_bus,
};
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