diff options
| author | Xiang Chen <chenxiang66@hisilicon.com> | 2019-10-24 17:08:09 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2019-10-25 04:31:13 +0300 |
| commit | 65a3b8bd56942dc988b8c05615bd3f510a10012b (patch) | |
| tree | 7293a4955b0799942f6b43611699a05626de598e /drivers/scsi/hisi_sas | |
| parent | 35160421b63d4753a72e9f72ebcdd9d6f88f84b9 (diff) | |
| download | linux-65a3b8bd56942dc988b8c05615bd3f510a10012b.tar.xz | |
scsi: hisi_sas: Set the BIST init value before enabling BIST
If set the BIST init value after enabling BIST, there may be still some few
error bits. According to the process, need to set the BIST init value
before enabling BIST.
Fixes: 97b151e75861 ("scsi: hisi_sas: Add BIST support for phy loopback")
Link: https://lore.kernel.org/r/1571926105-74636-3-git-send-email-john.garry@huawei.com
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hisi_sas')
| -rw-r--r-- | drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index cb8d087762db..cc594937fa8d 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -3022,11 +3022,6 @@ static int debugfs_set_bist_v3_hw(struct hisi_hba *hisi_hba, bool enable) hisi_sas_phy_write32(hisi_hba, phy_id, SAS_PHY_BIST_CTRL, reg_val); - mdelay(100); - reg_val |= (CFG_RX_BIST_EN_MSK | CFG_TX_BIST_EN_MSK); - hisi_sas_phy_write32(hisi_hba, phy_id, - SAS_PHY_BIST_CTRL, reg_val); - /* set the bist init value */ hisi_sas_phy_write32(hisi_hba, phy_id, SAS_PHY_BIST_CODE, @@ -3035,6 +3030,11 @@ static int debugfs_set_bist_v3_hw(struct hisi_hba *hisi_hba, bool enable) SAS_PHY_BIST_CODE1, SAS_PHY_BIST_CODE1_INIT); + mdelay(100); + reg_val |= (CFG_RX_BIST_EN_MSK | CFG_TX_BIST_EN_MSK); + hisi_sas_phy_write32(hisi_hba, phy_id, + SAS_PHY_BIST_CTRL, reg_val); + /* clear error bit */ mdelay(100); hisi_sas_phy_read32(hisi_hba, phy_id, SAS_BIST_ERR_CNT); |