2f3804edf9
Add support for the MPC8536 process and MPC8536DS reference board. The MPC8536 is an e500v2 based SoC which eTSEC, USB, SATA, PCI, and PCIe. The USB and SATA IP blocks are similiar to those on the PQ2 Pro SoCs and thus use the same drivers. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
125 lines
2.8 KiB
C
125 lines
2.8 KiB
C
/*
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* MPC8536 DS Board Setup
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*
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* Copyright 2008 Freescale Semiconductor, Inc.
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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/pci.h>
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#include <linux/kdev_t.h>
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#include <linux/delay.h>
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#include <linux/seq_file.h>
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#include <linux/interrupt.h>
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#include <linux/of_platform.h>
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#include <asm/system.h>
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#include <asm/time.h>
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#include <asm/machdep.h>
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#include <asm/pci-bridge.h>
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#include <mm/mmu_decl.h>
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#include <asm/prom.h>
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#include <asm/udbg.h>
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#include <asm/mpic.h>
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#include <sysdev/fsl_soc.h>
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#include <sysdev/fsl_pci.h>
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void __init mpc8536_ds_pic_init(void)
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{
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struct mpic *mpic;
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struct resource r;
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struct device_node *np;
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np = of_find_node_by_type(np, "open-pic");
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if (np == NULL) {
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printk(KERN_ERR "Could not find open-pic node\n");
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return;
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}
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if (of_address_to_resource(np, 0, &r)) {
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printk(KERN_ERR "Failed to map mpic register space\n");
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of_node_put(np);
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return;
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}
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mpic = mpic_alloc(np, r.start,
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MPIC_PRIMARY | MPIC_WANTS_RESET |
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MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS,
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0, 256, " OpenPIC ");
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BUG_ON(mpic == NULL);
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of_node_put(np);
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mpic_init(mpic);
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}
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/*
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* Setup the architecture
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*/
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static void __init mpc8536_ds_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("mpc8536_ds_setup_arch()", 0);
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#ifdef CONFIG_PCI
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for_each_node_by_type(np, "pci") {
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if (of_device_is_compatible(np, "fsl,mpc8540-pci") ||
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of_device_is_compatible(np, "fsl,mpc8548-pcie")) {
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struct resource rsrc;
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of_address_to_resource(np, 0, &rsrc);
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if ((rsrc.start & 0xfffff) == 0x8000)
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fsl_add_bridge(np, 1);
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else
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fsl_add_bridge(np, 0);
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}
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}
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#endif
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printk("MPC8536 DS board from Freescale Semiconductor\n");
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}
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static struct of_device_id __initdata mpc8536_ds_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 mpc8536_ds_publish_devices(void)
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{
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return of_platform_bus_probe(NULL, mpc8536_ds_ids, NULL);
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}
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machine_device_initcall(mpc8536_ds, mpc8536_ds_publish_devices);
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/*
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* Called very early, device-tree isn't unflattened
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*/
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static int __init mpc8536_ds_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, "fsl,mpc8536ds");
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}
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define_machine(mpc8536_ds) {
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.name = "MPC8536 DS",
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.probe = mpc8536_ds_probe,
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.setup_arch = mpc8536_ds_setup_arch,
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.init_IRQ = mpc8536_ds_pic_init,
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#ifdef CONFIG_PCI
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.pcibios_fixup_bus = fsl_pcibios_fixup_bus,
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#endif
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.get_irq = mpic_get_irq,
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.restart = fsl_rstcr_restart,
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.calibrate_decr = generic_calibrate_decr,
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.progress = udbg_progress,
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};
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