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>
153 lines
3.3 KiB
C
153 lines
3.3 KiB
C
/*
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* arch/powerpc/platforms/83xx/mpc834x_mds.c
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*
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* MPC834x MDS board specific routines
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*
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* Maintainer: Kumar Gala <galak@kernel.crashing.org>
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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 <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 "mpc83xx.h"
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#define BCSR5_INT_USB 0x02
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static int mpc834xemds_usb_cfg(void)
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{
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struct device_node *np;
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void __iomem *bcsr_regs = NULL;
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u8 bcsr5;
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mpc834x_usb_cfg();
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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) {
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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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if (!bcsr_regs)
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return -1;
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/*
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* if Processor Board is plugged into PIB board,
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* force to use the PHY on Processor Board
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*/
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bcsr5 = in_8(bcsr_regs + 5);
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if (!(bcsr5 & BCSR5_INT_USB))
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out_8(bcsr_regs + 5, (bcsr5 | BCSR5_INT_USB));
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iounmap(bcsr_regs);
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return 0;
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}
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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 mpc834x_mds_setup_arch(void)
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{
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#ifdef CONFIG_PCI
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struct device_node *np;
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#endif
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if (ppc_md.progress)
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ppc_md.progress("mpc834x_mds_setup_arch()", 0);
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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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mpc834xemds_usb_cfg();
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}
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static void __init mpc834x_mds_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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}
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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 mpc834x_rtc_hookup(void)
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{
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struct timespec tv;
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if (!machine_is(mpc834x_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(mpc834x_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 mpc834x_mds_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, "MPC834xMDS");
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}
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define_machine(mpc834x_mds) {
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.name = "MPC834x MDS",
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.probe = mpc834x_mds_probe,
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.setup_arch = mpc834x_mds_setup_arch,
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.init_IRQ = mpc834x_mds_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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