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/* $Id$
*
* 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/pci/pciba.h>
#include <linux/smp.h>
extern void mlreset(void);
extern int init_hcl(void);
extern void klgraph_hack_init(void);
extern void hubspc_init(void);
extern void pciio_init(void);
extern void pcibr_init(void);
extern void xtalk_init(void);
extern void xbow_init(void);
extern void xbmon_init(void);
extern void pciiox_init(void);
extern void pic_init(void);
extern void usrpci_init(void);
extern void ioc3_init(void);
extern void initialize_io(void);
extern void klhwg_add_all_modules(devfs_handle_t);
extern void klhwg_add_all_nodes(devfs_handle_t);
void sn_mp_setup(void);
extern devfs_handle_t hwgraph_root;
extern void io_module_init(void);
extern void pci_bus_cvlink_init(void);
extern void temp_hack(void);
extern int pci_bus_to_hcl_cvlink(void);
/* #define DEBUG_IO_INIT 1 */
#ifdef DEBUG_IO_INIT
#define DBG(x...) printk(x)
#else
#define DBG(x...)
#endif /* DEBUG_IO_INIT */
/*
* per_hub_init
*
* This code is executed once for each Hub chip.
*/
static 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;
nasid = COMPACT_TO_NASID_NODEID(cnode);
ASSERT(nasid != INVALID_NASID);
ASSERT(NASID_TO_COMPACT_NODEID(nasid) == cnode);
npdap = NODEPDA(cnode);
REMOTE_HUB_S(nasid, IIO_IWEIM, 0x8000);
/*
* 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;
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_ibcr.ii_ibcr_fld_s.i_count = 0x8;
REMOTE_HUB_S(nasid, IIO_IBCR, ii_ibcr.ii_ibcr_regval);
/*
* Set CRB timeout to be 10ms.
*/
#ifdef BRINGUP2
REMOTE_HUB_S(nasid, IIO_ICTP, 0xffffff );
REMOTE_HUB_S(nasid, IIO_ICTO, 0xff);
//REMOTE_HUB_S(nasid, IIO_IWI, 0x00FF00FF00FFFFFF);
#endif
/* 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)
{
int cnode;
extern void kdba_io_init();
/*
* Do any early init stuff .. einit_tbl[] etc.
*/
init_hcl(); /* Sets up the hwgraph compatibility layer with devfs */
/*
* initialize the Linux PCI to xwidget vertexes ..
*/
pci_bus_cvlink_init();
kdba_io_init();
#ifdef BRINGUP
/*
* Hack to provide statically initialzed klgraph entries.
*/
DBG("--> sgi_master_io_infr_init: calling klgraph_hack_init()\n");
klgraph_hack_init();
#endif /* BRINGUP */
/*
* This is the Master CPU. Emulate mlsetup and main.c in Irix.
*/
mlreset();
/*
* allowboot() is called by kern/os/main.c in main()
* Emulate allowboot() ...
* per_cpu_init() - only need per_hub_init()
* cpu_io_setup() - Nothing to do.
*
*/
sn_mp_setup();
for (cnode = 0; cnode < numnodes; cnode++) {
per_hub_init(cnode);
}
/* We can do headless hub cnodes here .. */
/*
* io_init[] stuff.
*
* Get SGI IO Infrastructure drivers to init and register with
* each other etc.
*/
hubspc_init();
pciio_init();
pcibr_init();
pic_init();
xtalk_init();
xbow_init();
xbmon_init();
pciiox_init();
usrpci_init();
ioc3_init();
/*
*
* Our IO Infrastructure drivers are in place ..
* Initialize the whole IO Infrastructure .. xwidget/device probes.
*
*/
initialize_io();
pci_bus_to_hcl_cvlink();
#ifdef CONFIG_PCIBA
DBG("--> sgi_master_io_infr_init: calling pciba_init()\n");
#ifndef BRINGUP2
pciba_init();
#endif
#endif
}
/*
* One-time setup for MP SN.
* Allocate per-node data, slurp prom klconfig information and
* convert it to hwgraph information.
*/
void
sn_mp_setup(void)
{
cpuid_t cpu;
for (cpu = 0; cpu < NR_CPUS; cpu++) {
/* Skip holes in CPU space */
if (cpu_enabled(cpu)) {
init_platform_pda(cpu);
}
}
/*
* Initialize platform-dependent vertices in the hwgraph:
* module
* node
* cpu
* memory
* slot
* hub
* router
* xbow
*/
io_module_init(); /* Use to be called module_init() .. */
klhwg_add_all_modules(hwgraph_root);
klhwg_add_all_nodes(hwgraph_root);
}
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