/*
* the main entry
*/
static int __init tc_init(void)
{
int tc_clock;
int i;
unsigned long slot0addr;
unsigned long slot_size;
if (!TURBOCHANNEL)
return 0;
for (i = 0; i < MAX_SLOT; i++) {
tc_bus[i].base_addr = 0;
tc_bus[i].name[0] = 0;
tc_bus[i].vendor[0] = 0;
tc_bus[i].firmware[0] = 0;
tc_bus[i].interrupt = -1;
tc_bus[i].flags = FREE;
}
info = rex_gettcinfo();
slot0addr = CPHYSADDR((long)rex_slot_address(0));
switch (mips_machtype) {
case MACH_DS5000_200:
num_tcslots = 7;
break;
case MACH_DS5000_1XX:
case MACH_DS5000_2X0:
case MACH_DS5900:
num_tcslots = 3;
break;
case MACH_DS5000_XX:
default:
num_tcslots = 2;
break;
}
tc_clock = 10000 / info->clk_period;
if (info->slot_size && slot0addr) {
pr_info("TURBOchannel rev. %d at %d.%d MHz (with%s parity)\n",
info->revision, tc_clock / 10, tc_clock % 10,
info->parity ? "" : "out");
slot_size = info->slot_size << 20;
tc_probe(slot0addr, slot_size, num_tcslots);
for (i = 0; i < num_tcslots; i++) {
if (!tc_bus[i].base_addr)
continue;
pr_info(" slot %d: %s %s %s\n", i, tc_bus[i].vendor,
tc_bus[i].name, tc_bus[i].firmware);
}
}
return 0;
}
fb_probe( /* reg, ui */)
{
static probed_once = 0;
/*
* Probing was really done sweeping the TC long ago
*/
if (tc_probe("fb") == 0)
return 0;
if (probed_once++ > 1)
printf("[mappable] ");
return 1;
}
sfb_probe(
vm_offset_t addr,
struct bus_device *device)
{
static probed_once = 0;
/*
* Probing was really done sweeping the TC long ago
*/
if (tc_probe("sfb") == 0)
return 0;
if (probed_once++ > 1) {
printf("[mappable] ");
device->address = addr;
}
return 1;
}
/*
* the main entry
*/
void __init tc_init(void)
{
int tc_clock;
int i;
unsigned long slot0addr;
unsigned long slot_size;
if (!TURBOCHANNEL)
return;
for (i = 0; i < MAX_SLOT; i++) {
tc_bus[i].base_addr = 0;
tc_bus[i].name[0] = 0;
tc_bus[i].vendor[0] = 0;
tc_bus[i].firmware[0] = 0;
tc_bus[i].interrupt = -1;
tc_bus[i].flags = FREE;
}
info = (tcinfo *) rex_gettcinfo();
slot0addr = (unsigned long)KSEG1ADDR(rex_slot_address(0));
switch (mips_machtype) {
case MACH_DS5000_200:
num_tcslots = 7;
break;
case MACH_DS5000_1XX:
case MACH_DS5000_2X0:
case MACH_DS5900:
num_tcslots = 3;
break;
case MACH_DS5000_XX:
default:
num_tcslots = 2;
break;
}
tc_clock = 10000 / info->clk_period;
if (TURBOCHANNEL && info->slot_size && slot0addr) {
printk("TURBOchannel rev. %1d at %2d.%1d MHz ", info->revision,
tc_clock / 10, tc_clock % 10);
printk("(with%s parity)\n", info->parity ? "" : "out");
slot_size = info->slot_size << 20;
tc_probe(slot0addr, slot_size, num_tcslots);
/*
* All TURBOchannel DECstations have the onboard devices
* where the (num_tcslots + 0 or 1 on DS5k/xx) Option Module
* would be.
*/
if(mips_machtype == MACH_DS5000_XX)
i = 1;
else
i = 0;
system_base = slot0addr + slot_size * (num_tcslots + i);
#ifdef TC_DEBUG
for (i = 0; i < num_tcslots; i++)
if (tc_bus[i].base_addr) {
printk(" slot %d: ", i);
printk("%s %s %s\n", tc_bus[i].vendor,
tc_bus[i].name, tc_bus[i].firmware);
}
#endif
ioport_resource.end = KSEG2 - 1;
}
}
sfb_cold_init(
int unit,
user_info_t *up)
{
sfb_softc_t *sfb;
screen_softc_t sc = screen(unit);
vm_offset_t base = tc_probe("sfb");
int hor_p, ver_p;
boolean_t makes_sense;
bcopy(&sfb_sw, &sc->sw, sizeof(sc->sw));
sc->flags |= COLOR_SCREEN;
/*
* I am confused here by the documentation. One document
* sez there are three boards:
* "PMAGB-BA" can do 1280x1024 @66Hz or @72Hz
* "PMAGB-BC" can do 1024x864 @60Hz or 1280x1024 @72Hz
* "PMAGB-BE" can do 1024x768 @72Hz or 1280x1024 @72Hz
* Another document sez things differently:
* "PMAGB-BB" can do 1024x768 @72Hz
* "PMAGB-BD" can do 1024x864 @60Hz or 1280x1024 @72Hz
*
* I would be inclined to believe the first one, which came
* with an actual piece of hardware attached (a PMAGB-BA).
* But I could swear I got a first board (which blew up
* instantly) and it was calling itself PMAGB-BB...
*
* Since I have not seen any other hardware I will make
* this code as hypothetical as I can. Should work :-))
*/
makes_sense = FALSE;
{
sfb_regs *regs;
regs = (sfb_regs *) ((char *)base + SFB_OFFSET_REGS);
hor_p = (regs->vhor_setup & 0x1ff) * 4;
ver_p = regs->vvert_setup & 0x7ff;
if (((hor_p == 1280) && (ver_p == 1024)) ||
((hor_p == 1024) && (ver_p == 864)) ||
((hor_p == 1024) && (ver_p == 768)))
makes_sense = TRUE;
}
if (makes_sense) {
sc->frame_scanline_width = hor_p;
sc->frame_height = ver_p;
sc->frame_visible_width = hor_p;
sc->frame_visible_height = ver_p;
} else {
sc->frame_scanline_width = 1280;
sc->frame_height = 1024;
sc->frame_visible_width = 1280;
sc->frame_visible_height = 1024;
}
pm_init_screen_params(sc,up);
(void) screen_up(unit, up);
sfb = pm_alloc( unit, sparsify(base + SFB_OFFSET_BT459),
base + SFB_OFFSET_VRAM, -1);
screen_default_colors(up);
sfb_soft_reset(sc);
/*
* Clearing the screen at boot saves from scrolling
* much, and speeds up booting quite a bit.
*/
screen_blitc( unit, 'C'-'@');/* clear screen */
}
