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ATA: Restrict to UDMA2 if we don't detect an "80-pin" cable

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Change-Id: I55861065741f3365491445f1f3f5b0041f33e1c6
This commit is contained in:
Solomon Peachy 2024-10-26 15:07:57 -04:00
parent aea4974b88
commit 3951fbf9d2
3 changed files with 23 additions and 6 deletions
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7
firmware/drivers/ata.c
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@ -1116,8 +1116,13 @@ static int set_features(void)
#ifdef HAVE_ATA_DMA
if (identify_info[53] & (1<<2)) {
int max_udma = ATA_MAX_UDMA;
#if ATA_MAX_UDMA > 2
if (!(ata_identify_data[93] & BIT(13)))
max_udma = 2;
#endif
/* Ultra DMA mode info present, find a mode */
dma_mode = ata_get_best_mode(identify_info[88], ATA_MAX_UDMA, 0x40);
dma_mode = ata_get_best_mode(identify_info[88], max_udma, 0x40);
}
if (!dma_mode) {