From: Peter Wang <peter.wang@xxxxxxxxxxxx>
Per UFS4.0 spec, HS-G5 is a new speed mode.
This patch introduce HS-G5 speed mode to mediatek.
Also add a host cap for power mode change via fastauto.
Co-Developed-by: CC Chou <cc.chou@xxxxxxxxxxxx>
Signed-off-by: CC Chou <cc.chou@xxxxxxxxxxxx>
Co-Developed-by: Eddie Huang <eddie.huang@xxxxxxxxxxxx>
Signed-off-by: Eddie Huang <eddie.huang@xxxxxxxxxxxx>
Co-Developed-by: Dennis Yu <tun-yu.yu@xxxxxxxxxxxx>
Signed-off-by: Dennis Yu <tun-yu.yu@xxxxxxxxxxxx>
Signed-off-by: Peter Wang <peter.wang@xxxxxxxxxxxx>
---
drivers/scsi/ufs/ufs-mediatek.c | 60 +++++++++++++++++++++++++++++++--
drivers/scsi/ufs/ufs-mediatek.h | 1 +
drivers/scsi/ufs/ufshcd.c | 3 +-
drivers/scsi/ufs/ufshcd.h | 1 +
drivers/scsi/ufs/unipro.h | 4 ++-
5 files changed, 65 insertions(+), 4 deletions(-)
diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index 86a938075f30..8f2a3b03d244 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -78,6 +78,13 @@ static bool ufs_mtk_is_broken_vcc(struct ufs_hba *hba)
return !!(host->caps & UFS_MTK_CAP_BROKEN_VCC);
}
+static bool ufs_mtk_is_pmc_via_fastauto(struct ufs_hba *hba)
+{
+ struct ufs_mtk_host *host = ufshcd_get_variant(hba);
+
+ return !!(host->caps & UFS_MTK_CAP_PMC_VIA_FASTAUTO);
+}
+
static void ufs_mtk_cfg_unipro_cg(struct ufs_hba *hba, bool enable)
{
u32 tmp;
@@ -580,6 +587,9 @@ static void ufs_mtk_init_host_caps(struct ufs_hba *hba)
if (of_property_read_bool(np, "mediatek,ufs-broken-vcc"))
host->caps |= UFS_MTK_CAP_BROKEN_VCC;
+ if (of_property_read_bool(np, "mediatek,ufs-pmc-via-fastauto"))
+ host->caps |= UFS_MTK_CAP_PMC_VIA_FASTAUTO;
+
dev_info(hba->dev, "caps: 0x%x", host->caps);
}
@@ -755,6 +765,26 @@ static int ufs_mtk_init(struct ufs_hba *hba)
return err;
}
+static bool ufs_mtk_pmc_via_fastauto(struct ufs_hba *hba,
+ struct ufs_pa_layer_attr *dev_req_params)
+{
+ if (!ufs_mtk_is_pmc_via_fastauto(hba))
+ return false;
+
+ if (dev_req_params->hs_rate == hba->pwr_info.hs_rate)
+ return false;
+
+ if ((dev_req_params->pwr_tx != FAST_MODE) &&
+ (dev_req_params->gear_tx < UFS_HS_G4))
+ return false;
+
+ if ((dev_req_params->pwr_rx != FAST_MODE) &&
+ (dev_req_params->gear_rx < UFS_HS_G4))
+ return false;
+
+ return true;
+}
+
static int ufs_mtk_pre_pwr_change(struct ufs_hba *hba,
struct ufs_pa_layer_attr *dev_max_params,
struct ufs_pa_layer_attr *dev_req_params)
@@ -764,8 +794,8 @@ static int ufs_mtk_pre_pwr_change(struct ufs_hba *hba,
int ret;
ufshcd_init_pwr_dev_param(&host_cap);
- host_cap.hs_rx_gear = UFS_HS_G4;
- host_cap.hs_tx_gear = UFS_HS_G4;
+ host_cap.hs_rx_gear = UFS_HS_G5;
+ host_cap.hs_tx_gear = UFS_HS_G5;
ret = ufshcd_get_pwr_dev_param(&host_cap,
dev_max_params,
@@ -775,6 +805,32 @@ static int ufs_mtk_pre_pwr_change(struct ufs_hba *hba,
__func__);
}
+ if (ufs_mtk_pmc_via_fastauto(hba, dev_req_params)) {
+ ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TXTERMINATION), TRUE);
+ ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TXGEAR), UFS_HS_G1);
+
+ ufshcd_dme_set(hba, UIC_ARG_MIB(PA_RXTERMINATION), TRUE);
+ ufshcd_dme_set(hba, UIC_ARG_MIB(PA_RXGEAR), UFS_HS_G1);
+
+ ufshcd_dme_set(hba, UIC_ARG_MIB(PA_ACTIVETXDATALANES),
+ dev_req_params->lane_tx);
+ ufshcd_dme_set(hba, UIC_ARG_MIB(PA_ACTIVERXDATALANES),
+ dev_req_params->lane_rx);
+ ufshcd_dme_set(hba, UIC_ARG_MIB(PA_HSSERIES),
+ dev_req_params->hs_rate);
+
+ ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TXHSADAPTTYPE),
+ PA_NO_ADAPT);
+
+ ret = ufshcd_uic_change_pwr_mode(hba,
+ FASTAUTO_MODE << 4 | FASTAUTO_MODE);
+
+ if (ret) {
+ dev_err(hba->dev, "%s: HSG1B FASTAUTO failed ret=%d\n",
+ __func__, ret);
+ }
+ }
+
if (host->hw_ver.major >= 3) {
ret = ufshcd_dme_configure_adapt(hba,
dev_req_params->gear_tx,
diff --git a/drivers/scsi/ufs/ufs-mediatek.h b/drivers/scsi/ufs/ufs-mediatek.h
index 414dca86c09f..3a31f03f3cb1 100644
--- a/drivers/scsi/ufs/ufs-mediatek.h
+++ b/drivers/scsi/ufs/ufs-mediatek.h
@@ -108,6 +108,7 @@ enum ufs_mtk_host_caps {
UFS_MTK_CAP_VA09_PWR_CTRL = 1 << 1,
UFS_MTK_CAP_DISABLE_AH8 = 1 << 2,
UFS_MTK_CAP_BROKEN_VCC = 1 << 3,
+ UFS_MTK_CAP_PMC_VIA_FASTAUTO = 1 << 4,
};
struct ufs_mtk_crypt_cfg {
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 3f9caafa91bf..e750011d0de7 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -4076,7 +4076,7 @@ static int ufshcd_uic_pwr_ctrl(struct ufs_hba *hba, struct uic_command *cmd)
*
* Returns 0 on success, non-zero value on failure
*/
-static int ufshcd_uic_change_pwr_mode(struct ufs_hba *hba, u8 mode)
+int ufshcd_uic_change_pwr_mode(struct ufs_hba *hba, u8 mode)
{
struct uic_command uic_cmd = {0};
int ret;
@@ -4101,6 +4101,7 @@ static int ufshcd_uic_change_pwr_mode(struct ufs_hba *hba, u8 mode)
out:
return ret;
}
+EXPORT_SYMBOL(ufshcd_uic_change_pwr_mode);
int ufshcd_link_recovery(struct ufs_hba *hba)
{
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 94f545be183a..1cda0f211d72 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -1101,6 +1101,7 @@ extern int ufshcd_dme_set_attr(struct ufs_hba *hba, u32 attr_sel,
u8 attr_set, u32 mib_val, u8 peer);
extern int ufshcd_dme_get_attr(struct ufs_hba *hba, u32 attr_sel,
u32 *mib_val, u8 peer);
+extern int ufshcd_uic_change_pwr_mode(struct ufs_hba *hba, u8 mode);
extern int ufshcd_config_pwr_mode(struct ufs_hba *hba,
struct ufs_pa_layer_attr *desired_pwr_mode);
diff --git a/drivers/scsi/ufs/unipro.h b/drivers/scsi/ufs/unipro.h
index 8e9e486a4f7b..94d97f123e3a 100644
--- a/drivers/scsi/ufs/unipro.h
+++ b/drivers/scsi/ufs/unipro.h
@@ -231,6 +231,7 @@ enum ufs_hs_gear_tag {
UFS_HS_G2, /* HS Gear 2 */
UFS_HS_G3, /* HS Gear 3 */
UFS_HS_G4, /* HS Gear 4 */
+ UFS_HS_G5, /* HS Gear 5 */
};
enum ufs_unipro_ver {
@@ -240,7 +241,8 @@ enum ufs_unipro_ver {
UFS_UNIPRO_VER_1_6 = 3, /* UniPro version 1.6 */
UFS_UNIPRO_VER_1_61 = 4, /* UniPro version 1.61 */
UFS_UNIPRO_VER_1_8 = 5, /* UniPro version 1.8 */
- UFS_UNIPRO_VER_MAX = 6, /* UniPro unsupported version */
+ UFS_UNIPRO_VER_2_0 = 6, /* UniPro version 2.0 */
+ UFS_UNIPRO_VER_MAX = 7, /* UniPro unsupported version */
/* UniPro version field mask in PA_LOCALVERINFO */
UFS_UNIPRO_VER_MASK = 0xF,
};
--
2.18.0
