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Add support for the ACER LABS Aladin chipset UDMA controller.

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Submitted by: Lee Cremeans <lee@st-lcremean.tidalwave.net>
This commit is contained in:
Julian Elischer 1999-01-13 04:40:50 +00:00
parent d8c85307b2
commit 38ffc07d37
1 changed files with 87 additions and 5 deletions
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92
sys/pci/ide_pci.c
View file

@ -26,7 +26,7 @@
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: ide_pci.c,v 1.21 1999/01/11 22:49:16 julian Exp $
* $Id: ide_pci.c,v 1.22 1999/01/12 01:36:46 eivind Exp $
*/
#include "pci.h"
@ -119,6 +119,15 @@ via_571_dmainit(struct ide_pci_cookie *cookie,
int (*wdcmd)(int, void *),
void *wdinfo);
static void
acer_status(struct ide_pci_cookie *cookie);
static int
acer_dmainit(struct ide_pci_cookie *cookie,
struct wdparams *wp,
int (*wdcmd)(int, void *),
void *wdinfo);
static void
intel_piix_dump_drive(char *ctlr,
int sitre,
@ -267,8 +276,14 @@ generic_dmainit(struct ide_pci_cookie *cookie,
printf("ide_pci: generic_dmainit %04x:%d: warning, IDE controller timing not set\n",
cookie->iobase_wd,
cookie->unit);
/* If we're here, then this controller is most likely not set
for UDMA, even if the drive may be. Make the drive wise
up. */
if(!wdcmd(WDDMA_MDMA2, wdinfo))
printf("generic_dmainit: could not set multiword DMA mode!\n");
return 1;
}
}
#ifdef IDE_PCI_DEBUG
printf("pio_mode: %d, mwdma_mode(wp): %d, udma_mode(wp): %d\n",
pio_mode(wp), mwdma_mode(wp), udma_mode(wp));
@ -1005,6 +1020,70 @@ static struct vendor_fns vs_intel_piix =
intel_piix_status
};
static void
acer_status(struct ide_pci_cookie *cookie) {
/* XXX does not do anything right now */
}
static int
acer_dmainit(struct ide_pci_cookie *cookie,
struct wdparams *wp,
int(*wdcmd)(int, void *),
void *wdinfo)
{
/* Acer Aladdin DMA setup code. UDMA looks to be sinfully easy to set
on this thing - just one register. */
u_long word54 = pci_conf_read(cookie->tag, 0x54);
/* Set the default Acer FIFO settings (0x55 = 13-word depth and
slave operation mode 1) */
word54 |= 0x5555;
/* Is this drive UDMA? Set it up if so... */
if(udma_mode(wp) >= 2) {
/* This is really easy to do. Just write 0xa (enable
UDMA mode with 2T timing) into the word at the right
places. */
word54 |= (0xA << (16 + (cookie->ctlr * 8) + (cookie->unit * 4)));
/* Now set the drive for UDMA2. */
if(!wdcmd(WDDMA_UDMA2, wdinfo)) {
printf("acer_dmainit: could not set UDMA2 mode on wdc%d:%d!\n", cookie->ctlr, cookie->unit);
return 0;
}
/* Write the new config into the registers. I'm not
sure if I'm doing this in the right order. */
pci_conf_write(cookie->tag, 0x54, word54);
} else if(mwdma_mode(wp) >= 2 && pio_mode(wp) >=4) {
/* Otherwise, we're already set for regular DMA. */
if(!wdcmd(WDDMA_MDMA2, wdinfo)) {
printf("acer_dmainit: could not set MWDMA2 mode on wdc%d:%d!\n",
cookie->ctlr, cookie->unit);
return 0;
}
return 1;
}
return 0;
}
static struct vendor_fns vs_acer =
{
acer_dmainit,
acer_status
};
/* Generic SFF-8038i code-- all code below here, except for PCI probes,
* more or less conforms to the SFF-8038i spec as extended for PCI.
* There should be no code that goes beyond that feature set below.
@ -1089,6 +1168,8 @@ ide_pci_probe(pcici_t tag, pcidi_t type)
return ("VIA 82C586x (Apollo) Bus-master IDE controller");
if (type == 0x01021078)
return ("Cyrix 5530 Bus-master IDE controller");
if (type == 0x522910b9)
return ("Acer Aladdin IV/V (M5229) Bus-master IDE controller");
if (data & 0x8000)
return ("PCI IDE controller (busmaster capable)");
#ifndef CMD640
@ -1156,6 +1237,9 @@ ide_pci_attach(pcici_t tag, int unit)
printf("cyrix 5530\n");
vp = &vs_cyrix_5530;
break;
case 0x522910B9: /* Acer Aladdin IV/V (M5229) */
vp = &vs_acer;
break;
default:
/* everybody else */
vp = &vs_generic;
@ -1318,9 +1402,7 @@ ide_pci_attach(pcici_t tag, int unit)
}
}
if (bmista_1 & BMISTA_SIMPLEX || bmista_2 & BMISTA_SIMPLEX) {
printf("ide_pci: controller is simplex, no DMA on secondary channel\n");
} else if (iobase_wd_2 != 0) {
if (iobase_wd_2 != 0) {
cookie = mkcookie(iobase_wd_2,
ctlridx + 1,
0,