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905e75c46d
We unified the Freescale pci/pcie initialization by changing the fsl_pci to a platform driver. In previous PCI code architecture the initialization routine is called at board_setup_arch stage. Now the initialization is done in probe function which is architectural better. Also It's convenient for adding PM support for PCI controller in later patch. Now we registered pci controllers as platform devices. So we combine two initialization code as one platform driver. Signed-off-by: Jia Hongtao <B38951@freescale.com> Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
100 lines
2.3 KiB
C
100 lines
2.3 KiB
C
/*
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* Copyright (c) 2008 Emcraft Systems
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* Sergei Poselenov <sposelenov@emcraft.com>
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*
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* Based on MPC8560 ADS and arch/ppc tqm85xx ports
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*
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* Maintained by Kumar Gala (see MAINTAINERS for contact information)
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*
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* Copyright 2008 Freescale Semiconductor Inc.
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*
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* Copyright (c) 2005-2006 DENX Software Engineering
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* Stefan Roese <sr@denx.de>
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*
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* Based on original work by
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* Kumar Gala <kumar.gala@freescale.com>
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* Copyright 2004 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/of_platform.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 <asm/mpic.h>
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#include <asm/prom.h>
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#include <mm/mmu_decl.h>
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#include <asm/udbg.h>
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#include <sysdev/fsl_soc.h>
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#include <sysdev/fsl_pci.h>
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#include "mpc85xx.h"
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#include "socrates_fpga_pic.h"
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static void __init socrates_pic_init(void)
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{
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struct device_node *np;
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struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN,
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0, 256, " OpenPIC ");
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BUG_ON(mpic == NULL);
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mpic_init(mpic);
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np = of_find_compatible_node(NULL, NULL, "abb,socrates-fpga-pic");
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if (!np) {
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printk(KERN_ERR "Could not find socrates-fpga-pic node\n");
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return;
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}
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socrates_fpga_pic_init(np);
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of_node_put(np);
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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 socrates_setup_arch(void)
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{
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if (ppc_md.progress)
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ppc_md.progress("socrates_setup_arch()", 0);
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fsl_pci_assign_primary();
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}
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machine_arch_initcall(socrates, mpc85xx_common_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 socrates_probe(void)
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{
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unsigned long root = of_get_flat_dt_root();
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if (of_flat_dt_is_compatible(root, "abb,socrates"))
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return 1;
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return 0;
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}
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define_machine(socrates) {
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.name = "Socrates",
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.probe = socrates_probe,
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.setup_arch = socrates_setup_arch,
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.init_IRQ = socrates_pic_init,
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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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