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c9438affcb
On the Freescale embedded (83xx, 85xx, 86xx) and a few of the discrete bridges (mpc10x, tsi108) use the new for_each_compatible_node() or for_each_node_by_type() to provide more exact matching when looking for PHBs in the device tree. With the previous code it was possible to match on pci bridges since we were only matching on device_type. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
193 lines
4.1 KiB
C
193 lines
4.1 KiB
C
/*
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* Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved.
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*
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* Description:
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* MPC832xE MDS board specific routines.
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*
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* This program 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 the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/stddef.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/reboot.h>
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#include <linux/pci.h>
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#include <linux/kdev_t.h>
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#include <linux/major.h>
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#include <linux/console.h>
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#include <linux/delay.h>
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#include <linux/seq_file.h>
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#include <linux/root_dev.h>
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#include <linux/initrd.h>
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#include <asm/of_device.h>
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#include <asm/of_platform.h>
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#include <asm/system.h>
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#include <asm/atomic.h>
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#include <asm/time.h>
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#include <asm/io.h>
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#include <asm/machdep.h>
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#include <asm/ipic.h>
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#include <asm/irq.h>
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#include <asm/prom.h>
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#include <asm/udbg.h>
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#include <sysdev/fsl_soc.h>
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#include <asm/qe.h>
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#include <asm/qe_ic.h>
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#include "mpc83xx.h"
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#undef DEBUG
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#ifdef DEBUG
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#define DBG(fmt...) udbg_printf(fmt)
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#else
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#define DBG(fmt...)
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#endif
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static u8 *bcsr_regs = NULL;
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/* ************************************************************************
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*
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* Setup the architecture
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*
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*/
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static void __init mpc832x_sys_setup_arch(void)
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{
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struct device_node *np;
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if (ppc_md.progress)
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ppc_md.progress("mpc832x_sys_setup_arch()", 0);
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/* Map BCSR area */
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np = of_find_node_by_name(NULL, "bcsr");
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if (np != 0) {
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struct resource res;
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of_address_to_resource(np, 0, &res);
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bcsr_regs = ioremap(res.start, res.end - res.start +1);
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of_node_put(np);
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}
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#ifdef CONFIG_PCI
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for_each_compatible_node(np, "pci", "fsl,mpc8349-pci")
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mpc83xx_add_bridge(np);
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#endif
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#ifdef CONFIG_QUICC_ENGINE
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qe_reset();
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if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) {
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par_io_init(np);
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of_node_put(np);
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for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;)
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par_io_of_config(np);
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}
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if ((np = of_find_compatible_node(NULL, "network", "ucc_geth"))
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!= NULL){
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/* Reset the Ethernet PHY */
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bcsr_regs[9] &= ~0x20;
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udelay(1000);
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bcsr_regs[9] |= 0x20;
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iounmap(bcsr_regs);
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of_node_put(np);
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}
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#endif /* CONFIG_QUICC_ENGINE */
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}
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static struct of_device_id mpc832x_ids[] = {
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{ .type = "soc", },
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{ .compatible = "soc", },
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{ .type = "qe", },
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{},
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};
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static int __init mpc832x_declare_of_platform_devices(void)
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{
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if (!machine_is(mpc832x_mds))
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return 0;
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/* Publish the QE devices */
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of_platform_bus_probe(NULL, mpc832x_ids, NULL);
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return 0;
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}
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device_initcall(mpc832x_declare_of_platform_devices);
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static void __init mpc832x_sys_init_IRQ(void)
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{
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struct device_node *np;
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np = of_find_node_by_type(NULL, "ipic");
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if (!np)
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return;
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ipic_init(np, 0);
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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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of_node_put(np);
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#ifdef CONFIG_QUICC_ENGINE
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np = of_find_node_by_type(NULL, "qeic");
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if (!np)
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return;
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qe_ic_init(np, 0);
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of_node_put(np);
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#endif /* CONFIG_QUICC_ENGINE */
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}
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#if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
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extern ulong ds1374_get_rtc_time(void);
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extern int ds1374_set_rtc_time(ulong);
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static int __init mpc832x_rtc_hookup(void)
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{
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struct timespec tv;
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if (!machine_is(mpc832x_mds))
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return 0;
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ppc_md.get_rtc_time = ds1374_get_rtc_time;
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ppc_md.set_rtc_time = ds1374_set_rtc_time;
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tv.tv_nsec = 0;
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tv.tv_sec = (ppc_md.get_rtc_time) ();
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do_settimeofday(&tv);
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return 0;
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}
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late_initcall(mpc832x_rtc_hookup);
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#endif
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/*
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* Called very early, MMU is off, device-tree isn't unflattened
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*/
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static int __init mpc832x_sys_probe(void)
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{
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unsigned long root = of_get_flat_dt_root();
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return of_flat_dt_is_compatible(root, "MPC832xMDS");
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}
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define_machine(mpc832x_mds) {
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.name = "MPC832x MDS",
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.probe = mpc832x_sys_probe,
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.setup_arch = mpc832x_sys_setup_arch,
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.init_IRQ = mpc832x_sys_init_IRQ,
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.get_irq = ipic_get_irq,
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.restart = mpc83xx_restart,
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.time_init = mpc83xx_time_init,
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.calibrate_decr = generic_calibrate_decr,
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.progress = udbg_progress,
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};
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