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/*
* 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
}
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