a43414ccb4
This adds the basic support for the Wind River SBC834x boards. The SBC8349 is more common, although it should work on the SBC8347 board as well. Support is heavily based on the existing MPC834x_MDS code. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
116 lines
2.6 KiB
C
116 lines
2.6 KiB
C
/*
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* arch/powerpc/platforms/83xx/sbc834x.c
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*
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* Wind River SBC834x board specific routines
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*
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* By Paul Gortmaker (see MAINTAINERS for contact information)
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*
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* Based largely on the mpc834x_mds.c support by Kumar Gala.
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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/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 "mpc83xx.h"
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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 sbc834x_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("sbc834x_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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}
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static void __init sbc834x_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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}
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static struct __initdata of_device_id sbc834x_ids[] = {
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{ .type = "soc", },
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{ .compatible = "soc", },
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{},
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};
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static int __init sbc834x_declare_of_platform_devices(void)
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{
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of_platform_bus_probe(NULL, sbc834x_ids, NULL);
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return 0;
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}
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machine_device_initcall(sbc834x, sbc834x_declare_of_platform_devices);
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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 sbc834x_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, "SBC834x");
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}
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define_machine(sbc834x) {
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.name = "SBC834x",
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.probe = sbc834x_probe,
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.setup_arch = sbc834x_setup_arch,
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.init_IRQ = sbc834x_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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