Re: SATA port multiplier(Marvell 6121 with ahci) and Marvell 4140, simg 3726
From: Grant Grundler <hidden>
Date: 2008-08-04 21:00:43
Possibly related (same subject, not in this thread)
- 2008-07-31 · SATA port multiplier(Marvell 6121 with ahci) and Marvell 4140, simg 3726 · KueiHuan Chen <hidden>
On Sat, Aug 2, 2008 at 10:53 AM, KueiHuan Chen [off-list ref] wrote:
2008/8/2 Tejun Heo [off-list ref]:quoted
Mark Lord wrote:quoted
I have exactly zero documentation on those chips, but they are supposedly AHCI compliant. Looking in drivers/ata/ahci.c, one can see that the chips are indeed supported, and there the AHCI_HFLAG_NO_PMP is *not* set, so one might expect them to work with a port-multiplier already. ?I bet it's more like nobody tried yet. :-P
I don't think we have. Patch I just posted won't address this issue either. grant
quoted hunk ↗ jump to hunk
Thanks for your explaining, i had tried it already. Port multiplier of Silicon image 3726 is not supported from 2.6.24 to 2.6.26 with 6121 and 6145 which using ahci.c : ( Here is the test envirement: Port Multipiler : Silicon image 3726. (Marvell 4140 is not fully tested, so i don't listed, but it is the same in arm arch.) arch/kernel 2.6.24 2.6.25 2.6.26 arm Not Work Not tested Not tested powerpc Not Work Not tested Not tested x86_64 Not Work Not Work Not Work Should we need disable 6121/6145 pmp support in ahci.c until it is fully supported? Thanks a lot. -------------------- Temporal disable pmp support in 6121/6145 until it is fully supported. Signed-off-by: KueiHuan Chen <redacted> ---diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index ef3e552..ef65ac0 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c@@ -420,7 +420,7 @@ static const struct ata_port_info ahci_port_info[] = { /* board_ahci_mv */ { AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_MSI | - AHCI_HFLAG_MV_PATA), + AHCI_HFLAG_MV_PATA | AHCI_HFLAG_NO_PMP), .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, .pio_mask = 0x1f, /* pio0-4 */--- Thanks, KueiHuan-Chen -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html