From mboxrd@z Thu Jan 1 00:00:00 1970 From: j00310691 Subject: [PATCH v2 22/23] hisi_sas: add v2 tmf functions Date: Tue, 26 Jan 2016 01:22:11 +0800 Message-ID: <1453742532-53092-23-git-send-email-john.garry@huawei.com> References: <1453742532-53092-1-git-send-email-john.garry@huawei.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1453742532-53092-1-git-send-email-john.garry@huawei.com> Sender: linux-scsi-owner@vger.kernel.org To: JBottomley@odin.com, martin.petersen@oracle.com, robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org Cc: linuxarm@huawei.com, zhangfei.gao@linaro.org, xuwei5@hisilicon.com, john.garry2@mail.dcu.ie, linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, arnd@arndb.de, devicetree@vger.kernel.org, John Garry List-Id: devicetree@vger.kernel.org From: John Garry Signed-off-by: John Garry --- 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