[PATCH v2 11/23] hisi_sas: add v2 phy init code
From: j00310691 <hidden>
Date: 2016-01-25 17:12:12
Also in:
linux-scsi, lkml
Subsystem:
hisilicon sas controller, scsi subsystem, the rest · Maintainers:
Yihang Li, "James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
From: John Garry <redacted> Signed-off-by: John Garry <redacted> --- drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 49 ++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index 6f05333..1990d65 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c@@ -288,6 +288,15 @@ static u32 hisi_sas_phy_read32(struct hisi_hba *hisi_hba, return readl(regs); } +static void config_phy_opt_mode_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_DC_OPT_MSK; + cfg |= 1 << PHY_CFG_DC_OPT_OFF; + hisi_sas_phy_write32(hisi_hba, phy_no, PHY_CFG, cfg); +} + static void config_id_frame_v2_hw(struct hisi_hba *hisi_hba, int phy_no) { struct sas_identify_frame identify_frame;
@@ -563,6 +572,44 @@ static int hw_init_v2_hw(struct hisi_hba *hisi_hba) return 0; } +static void enable_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); + config_phy_opt_mode_v2_hw(hisi_hba, phy_no); + enable_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; + int i; + + for (i = 0; i < hisi_hba->n_phy; i++) + start_phy_v2_hw(hisi_hba, i); +} + +static void phys_init_v2_hw(struct hisi_hba *hisi_hba) +{ + int i; + struct timer_list *timer = &hisi_hba->timer; + + for (i = 0; i < hisi_hba->n_phy; i++) { + hisi_sas_phy_write32(hisi_hba, i, CHL_INT2_MSK, 0x6a); + hisi_sas_phy_read32(hisi_hba, i, CHL_INT2_MSK); + } + + setup_timer(timer, start_phys_v2_hw, (unsigned long)hisi_hba); + mod_timer(timer, jiffies + HZ); +} + static int hisi_sas_v2_init(struct hisi_hba *hisi_hba) { int rc;
@@ -571,6 +618,8 @@ static int hisi_sas_v2_init(struct hisi_hba *hisi_hba) if (rc) return rc; + phys_init_v2_hw(hisi_hba); + return 0; }
--
1.9.1