diff options
| author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-08 01:01:14 -0300 |
|---|---|---|
| committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-09-08 01:01:14 -0300 |
| commit | e5fd91f1ef340da553f7a79da9540c3db711c937 (patch) | |
| tree | b11842027dc6641da63f4bcc524f8678263304a3 /drivers/scsi/ufs/ufs-qcom.c | |
| parent | 2a9b0348e685a63d97486f6749622b61e9e3292f (diff) | |
Linux-libre 4.2-gnu
Diffstat (limited to 'drivers/scsi/ufs/ufs-qcom.c')
| -rw-r--r-- | drivers/scsi/ufs/ufs-qcom.c | 39 |
1 files changed, 36 insertions, 3 deletions
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c index 6652a8171..4cdffa46d 100644 --- a/drivers/scsi/ufs/ufs-qcom.c +++ b/drivers/scsi/ufs/ufs-qcom.c @@ -307,6 +307,7 @@ static int ufs_qcom_hce_enable_notify(struct ufs_hba *hba, bool status) static unsigned long ufs_qcom_cfg_timers(struct ufs_hba *hba, u32 gear, u32 hs, u32 rate) { + struct ufs_qcom_host *host = hba->priv; struct ufs_clk_info *clki; u32 core_clk_period_in_ns; u32 tx_clk_cycles_per_us = 0; @@ -330,6 +331,16 @@ ufs_qcom_cfg_timers(struct ufs_hba *hba, u32 gear, u32 hs, u32 rate) {UFS_HS_G2, 0x49}, }; + /* + * The Qunipro controller does not use following registers: + * SYS1CLK_1US_REG, TX_SYMBOL_CLK_1US_REG, CLK_NS_REG & + * UFS_REG_PA_LINK_STARTUP_TIMER + * But UTP controller uses SYS1CLK_1US_REG register for Interrupt + * Aggregation logic. + */ + if (ufs_qcom_cap_qunipro(host) && !ufshcd_is_intr_aggr_allowed(hba)) + goto out; + if (gear == 0) { dev_err(hba->dev, "%s: invalid gear = %d\n", __func__, gear); goto out_error; @@ -683,6 +694,16 @@ out: return ret; } +static u32 ufs_qcom_get_ufs_hci_version(struct ufs_hba *hba) +{ + struct ufs_qcom_host *host = hba->priv; + + if (host->hw_ver.major == 0x1) + return UFSHCI_VERSION_11; + else + return UFSHCI_VERSION_20; +} + /** * ufs_qcom_advertise_quirks - advertise the known QCOM UFS controller quirks * @hba: host controller instance @@ -696,13 +717,24 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba) { struct ufs_qcom_host *host = hba->priv; - if (host->hw_ver.major == 0x1) - hba->quirks |= UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS; + if (host->hw_ver.major == 0x01) { + hba->quirks |= UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS + | UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP + | UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE; + + if (host->hw_ver.minor == 0x0001 && host->hw_ver.step == 0x0001) + hba->quirks |= UFSHCD_QUIRK_BROKEN_INTR_AGGR; + } if (host->hw_ver.major >= 0x2) { + hba->quirks |= UFSHCD_QUIRK_BROKEN_LCC; + hba->quirks |= UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION; + if (!ufs_qcom_cap_qunipro(host)) /* Legacy UniPro mode still need following quirks */ - hba->quirks |= UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS; + hba->quirks |= (UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS + | UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE + | UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP); } } @@ -1005,6 +1037,7 @@ static const struct ufs_hba_variant_ops ufs_hba_qcom_vops = { .name = "qcom", .init = ufs_qcom_init, .exit = ufs_qcom_exit, + .get_ufs_hci_version = ufs_qcom_get_ufs_hci_version, .clk_scale_notify = ufs_qcom_clk_scale_notify, .setup_clocks = ufs_qcom_setup_clocks, .hce_enable_notify = ufs_qcom_hce_enable_notify, |