Adapt for the Milan.
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leo
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4eec72908c
commit
b522de8af5
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@ -1,4 +1,4 @@
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/* $NetBSD: atari_init.c,v 1.53 2001/02/09 21:47:45 leo Exp $ */
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/* $NetBSD: atari_init.c,v 1.54 2001/05/14 11:58:30 leo Exp $ */
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/*
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* Copyright (c) 1995 Leo Weppelman
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@ -33,6 +33,7 @@
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*/
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#include "opt_ddb.h"
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#include "opt_mbtype.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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@ -198,6 +199,17 @@ char *esym_addr; /* Address of kernel '_esym' symbol */
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u_long kbase;
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u_int kstsize;
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#if defined(_MILANHW_)
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/* XXX
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* XXX The right place todo this is probably the booter (Leo)
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* XXX More than 16MB memory is not yet supported on the Milan!
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* The Milan Lies about the presence of TT-RAM. If you insert
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* 16MB it is split in 14MB ST starting at address 0 and 2MB TT RAM,
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* starting at address 16MB.
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*/
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stphysize += ttphysize;
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ttphysize = ttphystart = 0;
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#endif
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boot_segs[0].start = 0;
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boot_segs[0].end = stphysize;
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boot_segs[1].start = ttphystart;
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@ -287,6 +299,8 @@ char *esym_addr; /* Address of kernel '_esym' symbol */
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*/
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if (machineid & ATARI_HADES)
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ptextra += btoc(PCI_CONF_SIZE + PCI_IO_SIZE + PCI_VGA_SIZE);
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if (machineid & ATARI_MILAN)
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ptextra += btoc(PCI_IO_SIZE + PCI_VGA_SIZE);
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ptextra += btoc(BOOTM_VA_POOL);
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/*
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@ -598,6 +612,10 @@ char *esym_addr; /* Address of kernel '_esym' symbol */
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static void
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set_machtype()
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{
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#ifdef _MILANHW_
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machineid |= ATARI_MILAN;
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#else
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stio_addr = 0xff8000; /* XXX: For TT & Falcon only */
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if(badbaddr((caddr_t)&MFP2->mf_gpip, sizeof(char))) {
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/*
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@ -612,11 +630,13 @@ set_machtype()
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if(!badbaddr((caddr_t)(PCI_CONFB_PHYS + PCI_CONFM_PHYS), sizeof(char)))
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machineid |= ATARI_HADES;
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else machineid |= ATARI_TT;
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#endif /* _MILANHW_ */
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}
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static void
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atari_hwinit()
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{
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#if defined(_ATARIHW_)
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/*
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* Initialize the sound chip
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*/
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@ -629,6 +649,7 @@ atari_hwinit()
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* booter...
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*/
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MDI->ac_cs = 0;
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#endif /* defined(_ATARIHW_) */
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/*
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* Initialize both MFP chips (if both present!) to generate
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@ -640,12 +661,15 @@ atari_hwinit()
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MFP->mf_imra = MFP->mf_imrb = 0;
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MFP->mf_aer = MFP->mf_ddr = 0;
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MFP->mf_vr = 0x40;
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#if defined(_ATARIHW_)
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if(machineid & (ATARI_TT|ATARI_HADES)) {
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MFP2->mf_iera = MFP2->mf_ierb = 0;
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MFP2->mf_imra = MFP2->mf_imrb = 0;
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MFP2->mf_aer = 0x80;
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MFP2->mf_vr = 0x50;
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}
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if(machineid & ATARI_TT) {
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/*
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* Initialize the SCU, to enable interrupts on the SCC (ipl5),
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@ -661,9 +685,10 @@ atari_hwinit()
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SCU->sys_mask |= SCU_IRQ7;
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#endif
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}
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#endif /* defined(_ATARIHW_) */
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#if NPCI > 0
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if(machineid & ATARI_HADES) {
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if(machineid & (ATARI_HADES|ATARI_MILAN)) {
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/*
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* Configure PCI-bus
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*/
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@ -699,7 +724,17 @@ u_int ptextra; /* #of additional I/O pte's */
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ioaddr += STIO_SIZE;
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pg = &pt[stio_addr / NBPG];
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epg = &pg[btoc(STIO_SIZE)];
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#ifdef _MILANHW_
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/*
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* Turn on byte swaps in the ST I/O area. On the Milan, the
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* U0 signal of the MMU controls the BigEndian signal
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* of the PLX9080. We use this setting so we can read/write the
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* PLX registers (and PCI-config space) in big-endian mode.
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*/
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pg_proto = STIO_PHYS | PG_RW | PG_CI | PG_V | 0x100;
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#else
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pg_proto = STIO_PHYS | PG_RW | PG_CI | PG_V;
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#endif
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while(pg < epg) {
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*pg++ = pg_proto;
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pg_proto += NBPG;
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@ -709,7 +744,9 @@ u_int ptextra; /* #of additional I/O pte's */
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* Map PCI areas
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*/
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if (machineid & ATARI_HADES) {
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/*
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* Only Hades maps the PCI-config space!
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*/
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pci_conf_addr = ioaddr;
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ioaddr += PCI_CONF_SIZE;
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pg = &pt[pci_conf_addr / NBPG];
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@ -718,9 +755,13 @@ u_int ptextra; /* #of additional I/O pte's */
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pg_proto = PCI_CONFB_PHYS | PG_RW | PG_CI | PG_V;
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for(; pg < epg; mask <<= 1)
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*pg++ = pg_proto | mask;
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}
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else pci_conf_addr = 0; /* XXX: should crash */
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if (machineid & (ATARI_HADES|ATARI_MILAN)) {
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pci_io_addr = ioaddr;
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ioaddr += PCI_IO_SIZE;
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pg = &pt[pci_io_addr / NBPG];
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epg = &pg[btoc(PCI_IO_SIZE)];
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pg_proto = PCI_IO_PHYS | PG_RW | PG_CI | PG_V;
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while(pg < epg) {
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@ -729,6 +770,8 @@ u_int ptextra; /* #of additional I/O pte's */
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}
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pci_mem_addr = ioaddr;
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/* Provide an uncached PCI address for the MILAN */
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pci_mem_uncached = ioaddr;
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ioaddr += PCI_VGA_SIZE;
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epg = &pg[btoc(PCI_VGA_SIZE)];
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pg_proto = PCI_VGA_PHYS | PG_RW | PG_CI | PG_V;
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