ide: add support for CFA specified transfer modes (take 3)
Add support for the CompactFlash specific PIO modes 5/6 and MWDMA modes 3/4.
Since there were no PIO5 capable hard drives produced and one would also need
66 MHz IDE clock to actually get the difference WRT the address setup timings
programmed, I decided to simply replace the old non-standard PIO mode 5 timings
with the CFA specified ones.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: stf_xl@wp.pl
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
diff --git a/drivers/ide/ide-xfer-mode.c b/drivers/ide/ide-xfer-mode.c
index 6910f6a..af44be9 100644
--- a/drivers/ide/ide-xfer-mode.c
+++ b/drivers/ide/ide-xfer-mode.c
@@ -9,11 +9,11 @@
{ "UDMA/16", "UDMA/25", "UDMA/33", "UDMA/44",
"UDMA/66", "UDMA/100", "UDMA/133", "UDMA7" };
static const char *mwdma_str[] =
- { "MWDMA0", "MWDMA1", "MWDMA2" };
+ { "MWDMA0", "MWDMA1", "MWDMA2", "MWDMA3", "MWDMA4" };
static const char *swdma_str[] =
{ "SWDMA0", "SWDMA1", "SWDMA2" };
static const char *pio_str[] =
- { "PIO0", "PIO1", "PIO2", "PIO3", "PIO4", "PIO5" };
+ { "PIO0", "PIO1", "PIO2", "PIO3", "PIO4", "PIO5", "PIO6" };
/**
* ide_xfer_verbose - return IDE mode names
@@ -30,11 +30,11 @@
if (mode >= XFER_UDMA_0 && mode <= XFER_UDMA_7)
s = udma_str[i];
- else if (mode >= XFER_MW_DMA_0 && mode <= XFER_MW_DMA_2)
+ else if (mode >= XFER_MW_DMA_0 && mode <= XFER_MW_DMA_4)
s = mwdma_str[i];
else if (mode >= XFER_SW_DMA_0 && mode <= XFER_SW_DMA_2)
s = swdma_str[i];
- else if (mode >= XFER_PIO_0 && mode <= XFER_PIO_5)
+ else if (mode >= XFER_PIO_0 && mode <= XFER_PIO_6)
s = pio_str[i & 0x7];
else if (mode == XFER_PIO_SLOW)
s = "PIO SLOW";
@@ -79,7 +79,10 @@
}
if (id[ATA_ID_FIELD_VALID] & 2) { /* ATA2? */
- if (ata_id_has_iordy(id)) {
+ if (ata_id_is_cfa(id) && (id[ATA_ID_CFA_MODES] & 7))
+ pio_mode = 4 + min_t(int, 2,
+ id[ATA_ID_CFA_MODES] & 7);
+ else if (ata_id_has_iordy(id)) {
if (id[ATA_ID_PIO_MODES] & 7) {
overridden = 0;
if (id[ATA_ID_PIO_MODES] & 4)
@@ -239,7 +242,7 @@
BUG_ON(rate < XFER_PIO_0);
- if (rate >= XFER_PIO_0 && rate <= XFER_PIO_5)
+ if (rate >= XFER_PIO_0 && rate <= XFER_PIO_6)
return ide_set_pio_mode(drive, rate);
return ide_set_dma_mode(drive, rate);