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kernel/linux-rt-4.4.41/arch/powerpc/platforms/85xx/stx_gp3.c 2.54 KB
5113f6f70   김현기   kernel add
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  /*
   * Based on MPC8560 ADS and arch/ppc stx_gp3 ports
   *
   * Maintained by Kumar Gala (see MAINTAINERS for contact information)
   *
   * Copyright 2008 Freescale Semiconductor Inc.
   *
   * Dan Malek <dan@embeddededge.com>
   * Copyright 2004 Embedded Edge, LLC
   *
   * Copied from mpc8560_ads.c
   * Copyright 2002, 2003 Motorola Inc.
   *
   * Ported to 2.6, Matt Porter <mporter@kernel.crashing.org>
   * Copyright 2004-2005 MontaVista Software, Inc.
   *
   * This program is free software; you can redistribute  it and/or modify it
   * under  the terms of  the GNU General  Public License as published by the
   * Free Software Foundation;  either version 2 of the  License, or (at your
   * option) any later version.
   */
  
  #include <linux/stddef.h>
  #include <linux/kernel.h>
  #include <linux/pci.h>
  #include <linux/kdev_t.h>
  #include <linux/delay.h>
  #include <linux/seq_file.h>
  #include <linux/of_platform.h>
  
  #include <asm/time.h>
  #include <asm/machdep.h>
  #include <asm/pci-bridge.h>
  #include <asm/mpic.h>
  #include <asm/prom.h>
  #include <mm/mmu_decl.h>
  #include <asm/udbg.h>
  
  #include <sysdev/fsl_soc.h>
  #include <sysdev/fsl_pci.h>
  
  #include "mpc85xx.h"
  
  #ifdef CONFIG_CPM2
  #include <asm/cpm2.h>
  #endif /* CONFIG_CPM2 */
  
  static void __init stx_gp3_pic_init(void)
  {
  	struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN,
  			0, 256, " OpenPIC  ");
  	BUG_ON(mpic == NULL);
  	mpic_init(mpic);
  
  	mpc85xx_cpm2_pic_init();
  }
  
  /*
   * Setup the architecture
   */
  static void __init stx_gp3_setup_arch(void)
  {
  	if (ppc_md.progress)
  		ppc_md.progress("stx_gp3_setup_arch()", 0);
  
  	fsl_pci_assign_primary();
  
  #ifdef CONFIG_CPM2
  	cpm2_reset();
  #endif
  }
  
  static void stx_gp3_show_cpuinfo(struct seq_file *m)
  {
  	uint pvid, svid, phid1;
  
  	pvid = mfspr(SPRN_PVR);
  	svid = mfspr(SPRN_SVR);
  
  	seq_printf(m, "Vendor\t\t: RPC Electronics STx
  ");
  	seq_printf(m, "PVR\t\t: 0x%x
  ", pvid);
  	seq_printf(m, "SVR\t\t: 0x%x
  ", svid);
  
  	/* Display cpu Pll setting */
  	phid1 = mfspr(SPRN_HID1);
  	seq_printf(m, "PLL setting\t: 0x%x
  ", ((phid1 >> 24) & 0x3f));
  }
  
  machine_arch_initcall(stx_gp3, mpc85xx_common_publish_devices);
  
  /*
   * Called very early, device-tree isn't unflattened
   */
  static int __init stx_gp3_probe(void)
  {
  	unsigned long root = of_get_flat_dt_root();
  
  	return of_flat_dt_is_compatible(root, "stx,gp3-8560");
  }
  
  define_machine(stx_gp3) {
  	.name			= "STX GP3",
  	.probe			= stx_gp3_probe,
  	.setup_arch		= stx_gp3_setup_arch,
  	.init_IRQ		= stx_gp3_pic_init,
  	.show_cpuinfo		= stx_gp3_show_cpuinfo,
  	.get_irq		= mpic_get_irq,
  	.restart		= fsl_rstcr_restart,
  	.calibrate_decr		= generic_calibrate_decr,
  	.progress		= udbg_progress,
  };