From: Tang Yuantian <Yuantian.Tang@xxxxxxxxxxxxx> The PTC[RXWM] sets the watermark value for Rx FIFO. The default value 0x20 might be insufficient for some hard drives. If the watermark value is too small, a single-cycle overflow may occur and is reported as a CRC or internal error in the PxSERR register. Updated the value to 0x29 according to the validation test. All LS platforms are affected. Signed-off-by: Tang Yuantian <Yuantian.Tang@xxxxxxxxxxxxx> --- drivers/ata/ahci_qoriq.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/ata/ahci_qoriq.c b/drivers/ata/ahci_qoriq.c index 4d613f8..256d911 100644 --- a/drivers/ata/ahci_qoriq.c +++ b/drivers/ata/ahci_qoriq.c @@ -38,7 +38,7 @@ #define AHCI_PORT_PHY_3_CFG 0x0e081004 #define AHCI_PORT_PHY_4_CFG 0x00480811 #define AHCI_PORT_PHY_5_CFG 0x192c96a4 -#define AHCI_PORT_TRANS_CFG 0x08000025 +#define AHCI_PORT_TRANS_CFG 0x08000029 #define LS1043A_PORT_PHY2 0x28184d1f #define LS1043A_PORT_PHY3 0x0e081509 @@ -169,6 +169,7 @@ static int ahci_qoriq_phy_init(struct ahci_host_priv *hpriv) case AHCI_LS2080A: writel(AHCI_PORT_PHY_1_CFG, reg_base + PORT_PHY1); + writel(AHCI_PORT_TRANS_CFG, reg_base + PORT_TRANS); break; } -- 2.1.0.27.g96db324 -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
