diff options
| -rw-r--r-- | sys/arch/i386/isa/ahc_isa.c | 146 |
1 files changed, 124 insertions, 22 deletions
diff --git a/sys/arch/i386/isa/ahc_isa.c b/sys/arch/i386/isa/ahc_isa.c index a7bb4f33511..e504eeafa3e 100644 --- a/sys/arch/i386/isa/ahc_isa.c +++ b/sys/arch/i386/isa/ahc_isa.c @@ -1,4 +1,4 @@ -/* $OpenBSD: ahc_isa.c,v 1.4 1999/01/11 05:11:24 millert Exp $ */ +/* $OpenBSD: ahc_isa.c,v 1.5 2000/03/22 02:57:17 smurph Exp $ */ /* $NetBSD: ahc_isa.c,v 1.5 1996/10/21 22:27:39 thorpej Exp $ */ /* @@ -84,6 +84,13 @@ #include <dev/ic/aic7xxxreg.h> #include <dev/ic/aic7xxxvar.h> +#include <dev/ic/smc93cx6var.h> + +#ifdef DEBUG +#define bootverbose 1 +#else +#define bootverbose 0 +#endif /* IO port address setting range as EISA slot number */ #define AHC_ISA_MIN_SLOT 0x1 /* from iobase = 0x1c00 */ @@ -112,9 +119,10 @@ int ahc_isa_match __P((struct isa_attach_args *, bus_addr_t)); int ahc_isa_probe __P((struct device *, void *, void *)); void ahc_isa_attach __P((struct device *, struct device *, void *)); +void aha2840_load_seeprom __P((struct ahc_softc *ahc)); struct cfattach ahc_isa_ca = { - sizeof(struct ahc_data), ahc_isa_probe, ahc_isa_attach + sizeof(struct ahc_softc), ahc_isa_probe, ahc_isa_attach }; /* @@ -144,8 +152,12 @@ ahc_isa_irq(iot, ioh) { int irq; u_char intdef; + u_char hcntrl; + + /* Pause the card preseving the IRQ type */ + hcntrl = bus_space_read_1(iot, ioh, HCNTRL) & IRQMS; + bus_space_write_1(iot, ioh, HCNTRL, hcntrl | PAUSE); - ahc_reset("ahc_isa", iot, ioh); intdef = bus_space_read_1(iot, ioh, INTDEF); switch (irq = (intdef & 0xf)) { case 9: @@ -261,7 +273,7 @@ ahc_isa_match(ia, iobase) if (ia->ia_irq != IRQUNK && ia->ia_irq != irq) { printf("ahc_isa_match: irq mismatch (kernel %d, card %d)\n", - ia->ia_irq, irq); + ia->ia_irq, irq); return (0); } @@ -334,15 +346,18 @@ ahc_isa_attach(parent, self, aux) struct device *parent, *self; void *aux; { - ahc_type type; - struct ahc_data *ahc = (void *)self; + ahc_chip chip; + struct ahc_softc *ahc = (void *)self; struct isa_attach_args *ia = aux; bus_space_tag_t iot = ia->ia_iot; bus_space_handle_t ioh; int irq; char idstring[EISA_IDSTRINGLEN]; const char *model; + u_char channel = 'A'; + ahc->sc_dmat = ia->ia_dmat; + chip = AHC_VL; /* We are a VL Bus Controller */ if (bus_space_map(iot, ia->ia_iobase, ia->ia_iosize, 0, &ioh)) panic("ahc_isa_attach: could not map slot I/O addresses"); if (!ahc_isa_idstring(iot, ioh, idstring)) @@ -352,16 +367,16 @@ ahc_isa_attach(parent, self, aux) if (strcmp(idstring, "ADP7756") == 0) { model = EISA_PRODUCT_ADP7756; - type = AHC_284; + chip |= AHC_AIC7770; } else if (strcmp(idstring, "ADP7757") == 0) { model = EISA_PRODUCT_ADP7757; - type = AHC_284; + chip |= AHC_AIC7770; } else { panic("ahc_isa_attach: Unknown device type %s", idstring); } printf(": %s\n", model); - ahc_construct(ahc, iot, ioh, type, AHC_FNONE); + ahc_construct(ahc, iot, ioh, chip, AHC_FNONE, AHC_AIC7770_FE, channel); #ifdef DEBUG /* @@ -372,23 +387,15 @@ ahc_isa_attach(parent, self, aux) ahc->pause & IRQMS ? "Level Sensitive" : "Edge Triggered"); #endif + ahc->channel = 'A'; + ahc->channel_b = 'B'; + if (ahc_reset(ahc) != 0) + return; /* * Now that we know we own the resources we need, do the * card initialization. - * - * First, the aic7770 card specific setup. - */ - - /* XXX - * On AHA-284x, - * all values are automagically intialized at - * POST for these cards, so we can always rely - * on the Scratch Ram values. However, we should - * read the SEEPROM here (Dan has the code to do - * it) so we can say what kind of translation the - * BIOS is using. Printing out the geometry could - * save a lot of users the grief of failed installs. */ + aha2840_load_seeprom(ahc); /* * See if we have a Rev E or higher aic7770. Anything below a @@ -462,3 +469,98 @@ ahc_isa_attach(parent, self, aux) /* Attach sub-devices - always succeeds */ ahc_attach(ahc); } + +/* + * Read the 284x SEEPROM. + */ +void +aha2840_load_seeprom(struct ahc_softc *ahc) +{ + struct seeprom_descriptor sd; + struct seeprom_config sc; + u_int16_t checksum = 0; + u_int8_t scsi_conf; + int have_seeprom; + + sd.sd_tag = ahc->sc_iot; + sd.sd_bsh = ahc->sc_ioh; + sd.sd_control_offset = SEECTL_2840; + sd.sd_status_offset = STATUS_2840; + sd.sd_dataout_offset = STATUS_2840; + sd.sd_chip = C46; + sd.sd_MS = 0; + sd.sd_RDY = EEPROM_TF; + sd.sd_CS = CS_2840; + sd.sd_CK = CK_2840; + sd.sd_DO = DO_2840; + sd.sd_DI = DI_2840; + + if (bootverbose) + printf("%s: Reading SEEPROM...", ahc_name(ahc)); + have_seeprom = read_seeprom(&sd, + (u_int16_t *)&sc, + /*start_addr*/0, + sizeof(sc)/2); + + if (have_seeprom) { + /* Check checksum */ + int i; + int maxaddr = (sizeof(sc)/2) - 1; + u_int16_t *scarray = (u_int16_t *)≻ + + for (i = 0; i < maxaddr; i++) + checksum = checksum + scarray[i]; + if (checksum != sc.checksum) { + if(bootverbose) + printf ("checksum error\n"); + have_seeprom = 0; + } else if (bootverbose) { + printf("done.\n"); + } + } + + if (!have_seeprom) { + if (bootverbose) + printf("%s: No SEEPROM available\n", ahc_name(ahc)); + ahc->flags |= AHC_USEDEFAULTS; + } else { + /* + * Put the data we've collected down into SRAM + * where ahc_init will find it. + */ + int i; + int max_targ = (ahc->features & AHC_WIDE) != 0 ? 16 : 8; + u_int16_t discenable; + + discenable = 0; + for (i = 0; i < max_targ; i++){ + u_int8_t target_settings; + target_settings = (sc.device_flags[i] & CFXFER) << 4; + if (sc.device_flags[i] & CFSYNCH) + target_settings |= SOFS; + if (sc.device_flags[i] & CFWIDEB) + target_settings |= WIDEXFER; + if (sc.device_flags[i] & CFDISC) + discenable |= (0x01 << i); + ahc_outb(ahc, TARG_SCSIRATE + i, target_settings); + } + ahc_outb(ahc, DISC_DSB, ~(discenable & 0xff)); + ahc_outb(ahc, DISC_DSB + 1, ~((discenable >> 8) & 0xff)); + + ahc->our_id = sc.brtime_id & CFSCSIID; + + scsi_conf = (ahc->our_id & 0x7); + if (sc.adapter_control & CFSPARITY) + scsi_conf |= ENSPCHK; + if (sc.adapter_control & CFRESETB) + scsi_conf |= RESET_SCSI; + + if (sc.bios_control & CF284XEXTEND) + ahc->flags |= AHC_EXTENDED_TRANS_A; + /* Set SCSICONF info */ + ahc_outb(ahc, SCSICONF, scsi_conf); + + if (sc.adapter_control & CF284XSTERM) + ahc->flags |= AHC_TERM_ENB_A; + } +} |