[PATCH v2 22/23] hisi_sas: add v2 tmf functions

[j00310691]

From: John Garry <john.ga...@huawei.com>

Signed-off-by: John Garry <john.ga...@huawei.com>
---
 drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c 
b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index 481aff9..58e1956 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -847,6 +847,14 @@ static void enable_phy_v2_hw(struct hisi_hba *hisi_hba, 
int phy_no)
        hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
 }
 
+static void disable_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+       u32 cfg = hisi_sas_phy_read32(hisi_hba, phy_no, PHY_CFG);
+
+       cfg &= ~PHY_CFG_ENA_MSK;
+       hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg);
+}
+
 static void start_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
 {
        config_id_frame_v2_hw(hisi_hba, phy_no);
@@ -854,6 +862,18 @@ static void start_phy_v2_hw(struct hisi_hba *hisi_hba, int 
phy_no)
        enable_phy_v2_hw(hisi_hba, phy_no);
 }
 
+static void stop_phy_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+       disable_phy_v2_hw(hisi_hba, phy_no);
+}
+
+static void phy_hard_reset_v2_hw(struct hisi_hba *hisi_hba, int phy_no)
+{
+       stop_phy_v2_hw(hisi_hba, phy_no);
+       msleep(100);
+       start_phy_v2_hw(hisi_hba, phy_no);
+}
+
 static void start_phys_v2_hw(unsigned long data)
 {
        struct hisi_hba *hisi_hba = (struct hisi_hba *)data;
@@ -2145,6 +2165,9 @@ static const struct hisi_sas_hw hisi_sas_v2_hw = {
        .get_free_slot = get_free_slot_v2_hw,
        .start_delivery = start_delivery_v2_hw,
        .slot_complete = slot_complete_v2_hw,
+       .phy_enable = enable_phy_v2_hw,
+       .phy_disable = disable_phy_v2_hw,
+       .phy_hard_reset = phy_hard_reset_v2_hw,
        .max_command_entries = HISI_SAS_COMMAND_ENTRIES_V2_HW,
        .complete_hdr_size = sizeof(struct hisi_sas_complete_v2_hdr),
 };
-- 
1.9.1

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