text: /*
   * This file is subject to the terms and conditions of the GNU General Public
   * License.  See the file "COPYING" in the main directory of this archive
   * for more details.
   *
   * Copyright (C) 1992 - 1997, 2000-2003 Silicon Graphics, Inc. All rights reserved.
   */
  
  #include <linux/types.h>
  #include <linux/config.h>
  #include <linux/slab.h>
  #include <asm/sn/sgi.h>
  #include <asm/sn/io.h>
  #include <asm/sn/sn_cpuid.h>
  #include <asm/sn/klconfig.h>
  #include <asm/sn/sn_private.h>
  #include <asm/sn/pda.h>
  #include <linux/smp.h>
  
  extern int init_hcl(void);
  
  /*
   * per_hub_init
   *
   * 	This code is executed once for each Hub chip.
   */
  void
  per_hub_init(cnodeid_t cnode)
  {
  	nasid_t		nasid;
  	nodepda_t	*npdap;
  	ii_icmr_u_t	ii_icmr;
  	ii_ibcr_u_t	ii_ibcr;
  	ii_ilcsr_u_t	ii_ilcsr;
  
  	nasid = COMPACT_TO_NASID_NODEID(cnode);
  
  	ASSERT(nasid != INVALID_NASID);
  	ASSERT(NASID_TO_COMPACT_NODEID(nasid) == cnode);
  
  	npdap = NODEPDA(cnode);
  
  	/* Disable the request and reply errors. */
  	REMOTE_HUB_S(nasid, IIO_IWEIM, 0xC000);
  
  	/*
  	 * Set the total number of CRBs that can be used.
  	 */
  	ii_icmr.ii_icmr_regval= 0x0;
  	ii_icmr.ii_icmr_fld_s.i_c_cnt = 0xf;
  	if (enable_shub_wars_1_1() ) {
  		// Set bit one of ICMR to prevent II from sending interrupt for II bug.
  		ii_icmr.ii_icmr_regval |= 0x1; 
  	}
  	REMOTE_HUB_S(nasid, IIO_ICMR, ii_icmr.ii_icmr_regval);
  
  	/*
  	 * Set the number of CRBs that both of the BTEs combined
  	 * can use minus 1.
  	 */
  	ii_ibcr.ii_ibcr_regval= 0x0;
  	ii_ilcsr.ii_ilcsr_regval = REMOTE_HUB_L(nasid, IIO_LLP_CSR);
  	if (ii_ilcsr.ii_ilcsr_fld_s.i_llp_stat & LNK_STAT_WORKING) {
  	    ii_ibcr.ii_ibcr_fld_s.i_count = 0x8;
  	} else {
  	    /*
  	     * if the LLP is down, there is no attached I/O, so
  	    * give BTE all the CRBs.
  	    */
  	    ii_ibcr.ii_ibcr_fld_s.i_count = 0x14;
  	}
  	REMOTE_HUB_S(nasid, IIO_IBCR, ii_ibcr.ii_ibcr_regval);
  
  	/*
  	 * Set CRB timeout to be 10ms.
  	 */
  	REMOTE_HUB_S(nasid, IIO_ICTP, 0xffffff );
  	REMOTE_HUB_S(nasid, IIO_ICTO, 0xff);
  
  	/* Initialize error interrupts for this hub. */
  	hub_error_init(cnode);
  }
  
  /*
   * This routine is responsible for the setup of all the IRIX hwgraph style
   * stuff that's been pulled into linux.  It's called by sn_pci_find_bios which
   * is called just before the generic Linux PCI layer does its probing (by 
   * platform_pci_fixup aka sn_pci_fixup).
   *
   * It is very IMPORTANT that this call is only made by the Master CPU!
   *
   */
  
  void
  sgi_master_io_infr_init(void)
  {
  	extern void irix_io_init(void);
  
  	init_hcl(); /* Sets up the hwgraph compatibility layer with devfs */
  	irix_io_init(); /* Do IRIX Compatibility IO Init */
  
  #ifdef	CONFIG_KDB
  	{
  		extern void kdba_io_init(void);
  		kdba_io_init();
  	}
  #endif
  
  }
  