[PATCH] add support for DWC UFS Host Controller

From: Joao Pinto
Date: Mon Feb 01 2016 - 07:47:22 EST

This patch includes:
- quirks in the ufs core driver to support Synopsys MPHY Test Chip config
- quirks in the ufs core driver to support DWC configuration sequence
- New Unipro attributes were added
- ufs core driver was tweaked to support UFS 2.0
- support for Synopsys PCI ID in the pci glue driver
- new platform glue driver for Synopsys devices

Signed-off-by: Joao Pinto <jpinto@xxxxxxxxxxxx>
---
Documentation/devicetree/bindings/ufs/ufs-dwc.txt | 16 +
drivers/scsi/ufs/Kconfig | 54 ++
drivers/scsi/ufs/Makefile | 1 +
drivers/scsi/ufs/ufs-dwc.c | 115 +++
drivers/scsi/ufs/ufshcd-pci.c | 2 +
drivers/scsi/ufs/ufshcd-pltfrm.c | 2 +-
drivers/scsi/ufs/ufshcd.c | 822 +++++++++++++++++++++-
drivers/scsi/ufs/ufshcd.h | 15 +
drivers/scsi/ufs/ufshci.h | 29 +
drivers/scsi/ufs/unipro.h | 39 +
10 files changed, 1089 insertions(+), 6 deletions(-)
create mode 100644 Documentation/devicetree/bindings/ufs/ufs-dwc.txt
create mode 100644 drivers/scsi/ufs/ufs-dwc.c

diff --git a/Documentation/devicetree/bindings/ufs/ufs-dwc.txt b/Documentation/devicetree/bindings/ufs/ufs-dwc.txt
new file mode 100644
index 0000000..fa361f2
--- /dev/null
+++ b/Documentation/devicetree/bindings/ufs/ufs-dwc.txt
@@ -0,0 +1,16 @@
+* Universal Flash Storage (UFS) DesignWare Host Controller
+
+DWC_UFSHC nodes are defined to describe on-chip UFS host controllers.
+Each UFS controller instance should have its own node.
+
+Required properties:
+- compatible : compatible list, contains "snps,ufshcd"
+- reg : <registers mapping>
+- interrupts : <interrupt mapping for UFS host controller IRQ>
+
+Example:
+ dwc_ufshcd@0xD0000000 {
+ compatible = "snps,ufshcd";
+ reg = < 0xD0000000 0x10000 >;
+ interrupts = < 24 >;
+ };
diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig
index 5f45307..5da4b8f 100644
--- a/drivers/scsi/ufs/Kconfig
+++ b/drivers/scsi/ufs/Kconfig
@@ -83,3 +83,57 @@ config SCSI_UFS_QCOM

Select this if you have UFS controller on QCOM chipset.
If unsure, say N.
+
+config SCSI_UFS_DWC_HOOKS
+ bool "DesignWare hooks to UFS controller"
+ depends on SCSI_UFSHCD
+ ---help---
+ This selects the DesignWare hooks for the UFS host controller.
+
+ Select this if you have a DesignWare UFS controller.
+ If unsure, say N.
+
+config SCSI_UFS_DWC_PLAT
+ tristate "DesignWare UFS controller platform glue driver"
+ depends on SCSI_UFS_DWC_HOOKS && SCSI_UFSHCD_PLATFORM
+ ---help---
+ This selects the DesignWare UFS host controller platform glue driver.
+
+ Select this if you have a DesignWare UFS controller on Platform bus.
+ If unsure, say N.
+
+config SCSI_UFS_DWC_MPHY_TC
+ bool "Support for the Synopsys MPHY Test Chip"
+ depends on SCSI_UFS_DWC_PLAT
+ ---help---
+ This selects the support for the Synopsys MPHY Test Chip.
+
+ Select this if you have a Synopsys MPHY Test Chip.
+ If unsure, say N.
+
+config SCSI_UFS_DWC_MPHY_TC_GEN2
+ bool "Support for the Synopsys MPHY Test Chip Gen2"
+ depends on SCSI_UFS_DWC_20BIT_RMMI || SCSI_UFS_DWC_40BIT_RMMI
+ ---help---
+ This selects the support for the Synopsys MPHY Test Chip Gen2.
+
+ Select this if you have a Synopsys MPHY Test Chip Gen2.
+ If unsure, say N.
+
+config SCSI_UFS_DWC_20BIT_RMMI
+ bool "20-bit RMMI MPHY"
+ depends on SCSI_UFS_DWC_MPHY_TC
+ ---help---
+ This specifies that the Synopsys MPHY supports 40-bit RMMI operations.
+
+ Select this if you are using a 40-bit RMMI Synopsys MPHY.
+ If unsure, say N.
+
+config SCSI_UFS_DWC_40BIT_RMMI
+ bool "40-bit RMMI MPHY"
+ depends on SCSI_UFS_DWC_MPHY_TC
+ ---help---
+ This specifies that the Synopsys MPHY supports 40-bit RMMI operations.
+
+ Select this if you are using a 40-bit RMMI Synopsys MPHY.
+ If unsure, say N.
diff --git a/drivers/scsi/ufs/Makefile b/drivers/scsi/ufs/Makefile
index 8303bcc..c14b9e3 100644
--- a/drivers/scsi/ufs/Makefile
+++ b/drivers/scsi/ufs/Makefile
@@ -1,4 +1,5 @@
# UFSHCD makefile
+obj-$(CONFIG_SCSI_UFS_DWC_PLAT) += ufs-dwc.o
obj-$(CONFIG_SCSI_UFS_QCOM) += ufs-qcom.o
obj-$(CONFIG_SCSI_UFSHCD) += ufshcd.o
obj-$(CONFIG_SCSI_UFSHCD_PCI) += ufshcd-pci.o
diff --git a/drivers/scsi/ufs/ufs-dwc.c b/drivers/scsi/ufs/ufs-dwc.c
new file mode 100644
index 0000000..e4d70b7
--- /dev/null
+++ b/drivers/scsi/ufs/ufs-dwc.c
@@ -0,0 +1,115 @@
+/* ==========================================================================
+ * The Synopsys DWC UFS Software Driver and documentation (hereinafter
+ * "Software") is an unsupported proprietary work of Synopsys, Inc. unless
+ * otherwise expressly agreed to in writing between Synopsys and you.
+ *
+ * The Software IS NOT an item of Licensed Software or Licensed Product under
+ * any End User Software License Agreement or Agreement for Licensed Product
+ * with Synopsys or any supplement thereto. Permission is hereby granted,
+ * free of charge, to any person obtaining a copy of this software annotated
+ * with this license and the Software, to deal in the Software without
+ * restriction, including without limitation the rights to use, copy, modify,
+ * merge, publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so, subject
+ * to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS" BASIS
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ * ==========================================================================
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/delay.h>
+
+#include "ufshcd.h"
+#include "ufshcd-pltfrm.h"
+
+/**
+ * struct ufs_hba_dwc_vops - UFS DWC specific variant operations
+ *
+ */
+static struct ufs_hba_variant_ops ufs_hba_dwc_vops = {
+ .name = "dwc",
+};
+
+/**
+ * ufs_dwc_probe()
+ * @pdev: pointer to platform device structure
+ *
+ */
+static int ufs_dwc_probe(struct platform_device *pdev)
+{
+ int err;
+ struct device *dev = &pdev->dev;
+
+ /* Perform generic probe */
+ err = ufshcd_pltfrm_init(pdev, &ufs_hba_dwc_vops);
+ if (err)
+ dev_err(dev, "ufshcd_pltfrm_init() failed %d\n", err);
+
+ return err;
+}
+
+/**
+ * ufs_dwc_remove()
+ * @pdev: pointer to platform device structure
+ *
+ */
+static int ufs_dwc_remove(struct platform_device *pdev)
+{
+ struct ufs_hba *hba = platform_get_drvdata(pdev);
+
+ pm_runtime_get_sync(&(pdev)->dev);
+ ufshcd_remove(hba);
+
+ return 0;
+}
+
+static const struct of_device_id ufs_dwc_match[] = {
+ {
+ .compatible = "snps,ufshcd"
+ },
+ { },
+};
+MODULE_DEVICE_TABLE(of, ufs_dwc_match);
+
+static const struct dev_pm_ops ufs_dwc_pm_ops = {
+ .suspend = ufshcd_pltfrm_suspend,
+ .resume = ufshcd_pltfrm_resume,
+ .runtime_suspend = ufshcd_pltfrm_runtime_suspend,
+ .runtime_resume = ufshcd_pltfrm_runtime_resume,
+ .runtime_idle = ufshcd_pltfrm_runtime_idle,
+};
+
+static struct platform_driver ufs_dwc_driver = {
+ .probe = ufs_dwc_probe,
+ .remove = ufs_dwc_remove,
+ .shutdown = ufshcd_pltfrm_shutdown,
+ .driver = {
+ .name = "ufshcd-dwc",
+ .pm = &ufs_dwc_pm_ops,
+ .of_match_table = of_match_ptr(ufs_dwc_match),
+ },
+};
+
+module_platform_driver(ufs_dwc_driver);
+
+MODULE_ALIAS("platform:ufshcd-dwc");
+MODULE_DESCRIPTION("DesignWare UFS Host platform glue driver");
+MODULE_AUTHOR("Joao Pinto <Joao.Pinto@xxxxxxxxxxxx>");
+MODULE_LICENSE("Dual BSD/GPL");
diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c
index d15eaa4..0ee6c62 100644
--- a/drivers/scsi/ufs/ufshcd-pci.c
+++ b/drivers/scsi/ufs/ufshcd-pci.c
@@ -167,6 +167,8 @@ static const struct dev_pm_ops ufshcd_pci_pm_ops = {

static const struct pci_device_id ufshcd_pci_tbl[] = {
{ PCI_VENDOR_ID_SAMSUNG, 0xC00C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_SYNOPSYS, 0xB101, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
+ { PCI_VENDOR_ID_SYNOPSYS, 0xB102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
{ } /* terminate list */
};

diff --git a/drivers/scsi/ufs/ufshcd-pltfrm.c b/drivers/scsi/ufs/ufshcd-pltfrm.c
index d2a7b12..0522891 100644
--- a/drivers/scsi/ufs/ufshcd-pltfrm.c
+++ b/drivers/scsi/ufs/ufshcd-pltfrm.c
@@ -353,6 +353,6 @@ EXPORT_SYMBOL_GPL(ufshcd_pltfrm_init);

MODULE_AUTHOR("Santosh Yaragnavi <santosh.sy@xxxxxxxxxxx>");
MODULE_AUTHOR("Vinayak Holikatti <h.vinayak@xxxxxxxxxxx>");
-MODULE_DESCRIPTION("UFS host controller Pltform bus based glue driver");
+MODULE_DESCRIPTION("UFS host controller Platform bus based glue driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(UFSHCD_DRIVER_VERSION);
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 85cd256..05d309d 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -1223,6 +1223,7 @@ static int ufshcd_compose_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp)
ret = -EINVAL;
}
break;
+ case UTP_CMD_TYPE_UFS_STORAGE:
case UTP_CMD_TYPE_DEV_MANAGE:
ufshcd_prepare_req_desc_hdr(lrbp, &upiu_flags, DMA_NONE);
if (hba->dev_cmd.type == DEV_CMD_TYPE_QUERY)
@@ -1287,6 +1288,7 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
struct ufshcd_lrb *lrbp;
struct ufs_hba *hba;
unsigned long flags;
+ u32 upiu_flags;
int tag;
int err = 0;

@@ -1343,10 +1345,23 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
lrbp->task_tag = tag;
lrbp->lun = ufshcd_scsi_to_upiu_lun(cmd->device->lun);
lrbp->intr_cmd = !ufshcd_is_intr_aggr_allowed(hba) ? true : false;
- lrbp->command_type = UTP_CMD_TYPE_SCSI;
+
+ if (hba->ufs_version == UFSHCI_VERSION_20)
+ lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE;
+ else
+ lrbp->command_type = UTP_CMD_TYPE_SCSI;

/* form UPIU before issuing the command */
- ufshcd_compose_upiu(hba, lrbp);
+ if (hba->ufs_version == UFSHCI_VERSION_20) {
+ if (likely(lrbp->cmd)) {
+ ufshcd_prepare_req_desc_hdr(lrbp, &upiu_flags,
+ lrbp->cmd->sc_data_direction);
+ ufshcd_prepare_utp_scsi_cmd_upiu(lrbp, upiu_flags);
+ } else
+ err = -EINVAL;
+ } else
+ ufshcd_compose_upiu(hba, lrbp);
+
err = ufshcd_map_sg(lrbp);
if (err) {
lrbp->cmd = NULL;
@@ -1371,7 +1386,11 @@ static int ufshcd_compose_dev_cmd(struct ufs_hba *hba,
lrbp->sense_buffer = NULL;
lrbp->task_tag = tag;
lrbp->lun = 0; /* device management cmd is not specific to any LUN */
- lrbp->command_type = UTP_CMD_TYPE_DEV_MANAGE;
+ if (hba->ufs_version == UFSHCI_VERSION_20)
+ lrbp->command_type = UTP_CMD_TYPE_UFS_STORAGE;
+ else
+ lrbp->command_type = UTP_CMD_TYPE_DEV_MANAGE;
+
lrbp->intr_cmd = true; /* No interrupt aggregation */
hba->dev_cmd.type = cmd_type;

@@ -3187,7 +3206,8 @@ static void ufshcd_transfer_req_compl(struct ufs_hba *hba)
/* Do not touch lrbp after scsi done */
cmd->scsi_done(cmd);
__ufshcd_release(hba);
- } else if (lrbp->command_type == UTP_CMD_TYPE_DEV_MANAGE) {
+ } else if (lrbp->command_type == UTP_CMD_TYPE_DEV_MANAGE ||
+ lrbp->command_type == UTP_CMD_TYPE_UFS_STORAGE) {
if (hba->dev_cmd.complete)
complete(hba->dev_cmd.complete);
}
@@ -5521,6 +5541,790 @@ static struct devfreq_dev_profile ufs_devfreq_profile = {
.get_dev_status = ufshcd_devfreq_get_dev_status,
};

+#ifdef CONFIG_SCSI_UFS_DWC_HOOKS
+/**
+ * ufshcd_dwc_program_clk_div()
+ * This function programs the clk divider value. This value is needed to
+ * provide 1 microsecond tick to unipro layer.
+ * @hba: Private Structure pointer
+ * @divider_val: clock divider value to be programmed
+ *
+ */
+void ufshcd_dwc_program_clk_div(struct ufs_hba *hba, u32 divider_val)
+{
+ ufshcd_writel(hba, divider_val, DWC_UFS_REG_HCLKDIV);
+}
+
+/**
+ * ufshcd_dwc_link_is_up()
+ * Check if link is up
+ * @hba: private structure poitner
+ *
+ * Returns 0 on success, non-zero value on failure
+ */
+int ufshcd_dwc_link_is_up(struct ufs_hba *hba)
+{
+ int dme_result = 0;
+
+ ufshcd_dme_get(hba, UIC_ARG_MIB(VS_POWERSTATE), &dme_result);
+
+ if (dme_result == UFSHCD_LINK_IS_UP) {
+ ufshcd_set_link_active(hba);
+ return 0;
+ }
+
+ return 1;
+}
+
+/**
+ * ufshcd_dwc_connection_setup()
+ * This function configures both the local side (host) and the peer side
+ * (device) unipro attributes to establish the connection to application/
+ * cport.
+ * This function is not required if the hardware is properly configured to
+ * have this connection setup on reset. But invoking this function does no
+ * harm and should be fine even working with any ufs device.
+ *
+ * @hba: pointer to drivers private data
+ *
+ * Returns 0 on success non-zero value on failure
+ */
+int ufshcd_dwc_connection_setup(struct ufs_hba *hba)
+{
+ int ret = 0;
+
+ /* Local side Configuration */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(T_CONNECTIONSTATE), 0);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(N_DEVICEID), 0);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(N_DEVICEID_VALID), 0);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(T_PEERDEVICEID), 1);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(T_PEERCPORTID), 0);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(T_TRAFFICCLASS), 0);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(T_CPORTFLAGS), 0x6);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(T_CPORTMODE), 1);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(T_CONNECTIONSTATE), 1);
+ if (ret)
+ goto out;
+
+
+ /* Peer side Configuration */
+ ret = ufshcd_dme_peer_set(hba, UIC_ARG_MIB(T_CONNECTIONSTATE), 0);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_peer_set(hba, UIC_ARG_MIB(N_DEVICEID), 1);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_peer_set(hba, UIC_ARG_MIB(N_DEVICEID_VALID), 1);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_peer_set(hba, UIC_ARG_MIB(T_PEERDEVICEID), 1);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_peer_set(hba, UIC_ARG_MIB(T_PEERCPORTID), 0);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_peer_set(hba, UIC_ARG_MIB(T_TRAFFICCLASS), 0);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_peer_set(hba, UIC_ARG_MIB(T_CPORTFLAGS), 0x6);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_peer_set(hba, UIC_ARG_MIB(T_CPORTMODE), 1);
+ if (ret)
+ goto out;
+
+ ret = ufshcd_dme_peer_set(hba, UIC_ARG_MIB(T_CONNECTIONSTATE), 1);
+ if (ret)
+ goto out;
+
+out:
+ return ret;
+}
+
+/**
+ * ufshcd_dwc_setup_20bit_rmmi_lane0()
+ * This function configures Synopsys MPHY 20-bit RMMI Lane 0
+ * @hba: Pointer to drivers structure
+ *
+ * Returns 0 on success or non-zero value on failure
+ */
+int ufshcd_dwc_setup_20bit_rmmi_lane0(struct ufs_hba *hba)
+{
+ int ret = 0;
+
+ /* TX Reference Clock 26MHz */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(TX_REFCLKFREQ,
+ SELIND_LN0_TX), 0x01);
+ if (ret)
+ goto out;
+
+#ifdef CONFIG_SCSI_UFS_DWC_MPHY_TC_GEN2
+ /* TX Configuration Clock Frequency Val; Divider setting */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(TX_CFGCLKFREQVAL,
+ SELIND_LN0_TX), 0x19);
+ if (ret)
+ goto out;
+
+ /* RX Configuration Clock Frequency Val; Divider setting */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(RX_CFGCLKFREQVAL,
+ SELIND_LN0_RX), 0x19);
+ if (ret)
+ goto out;
+#else
+ /* TX Configuration Clock Frequency Val; Divider setting */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(TX_CFGCLKFREQVAL,
+ SELIND_LN0_TX), 0x1b);
+ if (ret)
+ goto out;
+
+ /* RX Configuration Clock Frequency Val; Divider setting */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(RX_CFGCLKFREQVAL,
+ SELIND_LN0_RX), 0x1b);
+ if (ret)
+ goto out;
+#endif
+
+ /* TX 20-bit RMMI Interface */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGEXTRATTR,
+ SELIND_LN0_TX), 0x12);
+ if (ret)
+ goto out;
+
+ /* TX dither configuration */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(DITHERCTRL2,
+ SELIND_LN0_TX), 0xd6);
+ if (ret)
+ goto out;
+
+ /* RX Reference Clock 26MHz */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(RX_REFCLKFREQ,
+ SELIND_LN0_RX), 0x01);
+ if (ret)
+ goto out;
+
+ /* RX 20-bit RMMI Interface */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGWIDEINLN,
+ SELIND_LN0_RX), 2);
+ if (ret)
+ goto out;
+
+ /* RX Squelch Detector output is routed to RX hibern8 exit signal */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGRXCDR8,
+ SELIND_LN0_RX), 0x80);
+ if (ret)
+ goto out;
+
+#ifdef CONFIG_SCSI_UFS_DWC_MPHY_TC_GEN2
+
+ /* Common block Direct Control 10 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(DIRECTCTRL10), 0x04);
+ if (ret)
+ goto out;
+
+ /* Common block Direct Control 19 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(DIRECTCTRL19), 0x02);
+ if (ret)
+ goto out;
+
+ /* ENARXDIRECTCFG4 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(ENARXDIRECTCFG4,
+ SELIND_LN0_RX), 0x03);
+ if (ret)
+ goto out;
+
+ /* CFGRXOVR8 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGRXOVR8,
+ SELIND_LN0_RX), 0x16);
+ if (ret)
+ goto out;
+
+ /* RXDIRECTCTRL2 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(RXDIRECTCTRL2,
+ SELIND_LN0_RX), 0x42);
+
+ if (ret)
+ goto out;
+
+ /* ENARXDIRECTCFG3 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(ENARXDIRECTCFG3,
+ SELIND_LN0_RX), 0xa4);
+
+ if (ret)
+ goto out;
+
+ /* RXCALCTRL */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(RXCALCTRL,
+ SELIND_LN0_RX), 0x01);
+ if (ret)
+ goto out;
+
+ /* ENARXDIRECTCFG2 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(ENARXDIRECTCFG2,
+ SELIND_LN0_RX), 0x01);
+ if (ret)
+ goto out;
+
+ /* CFGOVR4 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGRXOVR4,
+ SELIND_LN0_RX), 0x28);
+ if (ret)
+ goto out;
+
+ /* RXSQCTRL */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(RXSQCTRL,
+ SELIND_LN0_RX), 0x1E);
+ if (ret)
+ goto out;
+
+ /* CFGOVR6 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGRXOVR6,
+ SELIND_LN0_RX), 0x2f);
+ if (ret)
+ goto out;
+
+ /* CBPRGPLL2 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(CBPRGPLL2), 0x00);
+#endif
+
+out:
+ return ret;
+}
+
+/**
+ * ufshcd_dwc_setup_20bit_rmmi_lane1()
+ * This function configures Synopsys MPHY 20-bit RMMI Lane 1
+ * @hba: Pointer to drivers structure
+ *
+ * Returns 0 on success or non-zero value on failure
+ */
+int ufshcd_dwc_setup_20bit_rmmi_lane1(struct ufs_hba *hba)
+{
+ int connected_rx_lanes = 0;
+ int connected_tx_lanes = 0;
+ int ret = 0;
+
+ /* Get the available lane count */
+ ufshcd_dme_get(hba, UIC_ARG_MIB(PA_CONNECTEDRXDATALANES),
+ &connected_rx_lanes);
+ ufshcd_dme_get(hba, UIC_ARG_MIB(PA_CONNECTEDTXDATALANES),
+ &connected_tx_lanes);
+
+ if (connected_tx_lanes == 2) {
+
+ /* TX Reference Clock 26MHz */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(TX_REFCLKFREQ,
+ SELIND_LN1_TX), 0x0d);
+ if (ret)
+ goto out;
+
+#ifdef CONFIG_SCSI_UFS_DWC_MPHY_TC_GEN2
+ /* TX Configuration Clock Frequency Val; Divider setting */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(TX_CFGCLKFREQVAL,
+ SELIND_LN1_TX), 0x19);
+ if (ret)
+ goto out;
+#else
+ /* TX Configuration Clock Frequency Val; Divider setting */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(TX_CFGCLKFREQVAL,
+ SELIND_LN1_TX), 0x1b);
+ if (ret)
+ goto out;
+#endif
+ /* TX 20-bit RMMI Interface */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGEXTRATTR,
+ SELIND_LN1_TX), 0x12);
+ if (ret)
+ goto out;
+
+ /* TX dither configuration */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(DITHERCTRL2,
+ SELIND_LN0_TX), 0xd6);
+ if (ret)
+ goto out;
+ }
+
+ if (connected_rx_lanes == 2) {
+
+ /* RX Reference Clock 26MHz */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(RX_REFCLKFREQ,
+ SELIND_LN1_RX), 0x01);
+ if (ret)
+ goto out;
+
+#ifdef CONFIG_SCSI_UFS_DWC_MPHY_TC_GEN2
+ /* RX Configuration Clock Frequency Val; Divider setting */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(RX_CFGCLKFREQVAL,
+ SELIND_LN1_RX), 0x19);
+ if (ret)
+ goto out;
+#else
+ /* RX Configuration Clock Frequency Val; Divider setting */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(RX_CFGCLKFREQVAL,
+ SELIND_LN1_RX), 0x1b);
+ if (ret)
+ goto out;
+#endif
+ /* RX 20-bit RMMI Interface */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGWIDEINLN,
+ SELIND_LN1_RX), 2);
+ if (ret)
+ goto out;
+
+ /* RX Squelch Detector output is routed to RX hibern8 exit
+ * signal
+ */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGRXCDR8,
+ SELIND_LN1_RX), 0x80);
+ if (ret)
+ goto out;
+
+#ifdef CONFIG_SCSI_UFS_DWC_MPHY_TC_GEN2
+ /* ENARXDIRECTCFG4 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(ENARXDIRECTCFG4,
+ SELIND_LN1_RX), 0x03);
+ if (ret)
+ goto out;
+
+ /* CFGRXOVR8 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGRXOVR8,
+ SELIND_LN1_RX), 0x16);
+ if (ret)
+ goto out;
+
+ /* RXDIRECTCTRL2 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(RXDIRECTCTRL2,
+ SELIND_LN1_RX), 0x42);
+ if (ret)
+ goto out;
+
+ /* ENARXDIRECTCFG3 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(ENARXDIRECTCFG3,
+ SELIND_LN1_RX), 0xa4);
+ if (ret)
+ goto out;
+
+ /* RXCALCTRL */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(RXCALCTRL,
+ SELIND_LN1_RX), 0x01);
+ if (ret)
+ goto out;
+
+ /* ENARXDIRECTCFG2 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(ENARXDIRECTCFG2,
+ SELIND_LN1_RX), 0x01);
+ if (ret)
+ goto out;
+
+ /* CFGOVR4 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGRXOVR4,
+ SELIND_LN1_RX), 0x28);
+ if (ret)
+ goto out;
+
+ /* RXSQCTRL */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(RXSQCTRL,
+ SELIND_LN1_RX), 0x1E);
+ if (ret)
+ goto out;
+
+ /* CFGOVR6 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGRXOVR6,
+ SELIND_LN1_RX), 0x2f);
+ if (ret)
+ goto out;
+#endif
+ }
+
+out:
+ return ret;
+}
+
+/**
+ * ufshcd_dwc_setup_20bit_rmmi()
+ * This function configures Synopsys MPHY specific atributes (20-bit RMMI)
+ * @hba: Pointer to drivers structure
+ *
+ * Returns 0 on success or non-zero value on failure
+ */
+int ufshcd_dwc_setup_20bit_rmmi(struct ufs_hba *hba)
+{
+ int ret = 0;
+
+ /* Common block Tx Global Hibernate Exit */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(TX_GLOBALHIBERNATE), 0x00);
+ if (ret)
+ goto out;
+
+ /* Common block Reference Clock Mode 26MHz */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(REFCLKMODE), 0x01);
+ if (ret)
+ goto out;
+
+ /* Common block DCO Target Frequency MAX PWM G1:9Mpbs */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(CDIRECTCTRL6), 0xc0);
+ if (ret)
+ goto out;
+
+ /* Common block TX and RX Div Factor is 4 7Mbps/20 = 350KHz */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(CBDIVFACTOR), 0x44);
+ if (ret)
+ goto out;
+
+ /* Common Block DC0 Ctrl 5*/
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(CBDCOCTRL5), 0x64);
+ if (ret)
+ goto out;
+
+ /* Common Block Program Tunning*/
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(CBPRGTUNING), 0x09);
+ if (ret)
+ goto out;
+
+ /* Common Block Real Time Observe Select - for debugging */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(RTOBSERVESELECT), 0x00);
+ if (ret)
+ goto out;
+
+ /* Lane 0 configuration*/
+ ret = ufshcd_dwc_setup_20bit_rmmi_lane0(hba);
+ if (ret)
+ goto out;
+
+ /* Lane 1 configuration*/
+ ret = ufshcd_dwc_setup_20bit_rmmi_lane1(hba);
+ if (ret)
+ goto out;
+
+out:
+ return ret;
+}
+
+/**
+ * ufshcd_dwc_setup_40bit_rmmi()
+ * This function configures Synopsys MPHY specific atributes (40-bit RMMI)
+ * @hba: Pointer to drivers structure
+ *
+ * Returns 0 on success or non-zero value on failure
+ */
+int ufshcd_dwc_setup_40bit_rmmi(struct ufs_hba *hba)
+{
+ int ret = 0;
+
+ /* Common block Tx Global Hibernate Exit */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(TX_GLOBALHIBERNATE), 0x00);
+ if (ret)
+ goto out;
+
+ /* Common block Reference Clock Mode 26MHz */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(REFCLKMODE), 0x01);
+ if (ret)
+ goto out;
+
+ /* Common block DCO Target Frequency MAX PWM G1:7Mpbs */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(CDIRECTCTRL6), 0x80);
+ if (ret)
+ goto out;
+
+ /* Common block TX and RX Div Factor is 4 7Mbps/40 = 175KHz */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(CBDIVFACTOR), 0x08);
+ if (ret)
+ goto out;
+
+ /* Common Block DC0 Ctrl 5*/
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(CBDCOCTRL5), 0x64);
+ if (ret)
+ goto out;
+
+ /* Common Block Program Tunning*/
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(CBPRGTUNING), 0x09);
+ if (ret)
+ goto out;
+
+ /* Common Block Real Time Observe Select - for debugging */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(RTOBSERVESELECT), 0x00);
+ if (ret)
+ goto out;
+
+ /* Lane 0 configuration*/
+
+ /* TX Reference Clock 26MHz */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(TX_REFCLKFREQ,
+ SELIND_LN0_TX), 0x01);
+ if (ret)
+ goto out;
+
+ /* TX Configuration Clock Frequency Val; Divider setting */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(TX_CFGCLKFREQVAL,
+ SELIND_LN0_TX), 0x19);
+ if (ret)
+ goto out;
+
+ /* TX 40-bit RMMI Interface */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGEXTRATTR,
+ SELIND_LN0_TX), 0x14);
+ if (ret)
+ goto out;
+
+ /* TX dither configuration */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(DITHERCTRL2,
+ SELIND_LN0_TX), 0xd6);
+ if (ret)
+ goto out;
+
+ /* RX Reference Clock 26MHz */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(RX_REFCLKFREQ,
+ SELIND_LN0_RX), 0x01);
+ if (ret)
+ goto out;
+
+ /* RX Configuration Clock Frequency Val; Divider setting */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(RX_CFGCLKFREQVAL,
+ SELIND_LN0_RX), 0x19);
+ if (ret)
+ goto out;
+
+ /* RX 40-bit RMMI Interface */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGWIDEINLN,
+ SELIND_LN0_RX), 4);
+ if (ret)
+ goto out;
+
+ /* RX Squelch Detector output is routed to RX hibern8 exit signal */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGRXCDR8,
+ SELIND_LN0_RX), 0x80);
+ if (ret)
+ goto out;
+
+ /* RX Squelch Detector output is routed to RX hibern8 exit signal */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGRXCDR8,
+ SELIND_LN0_RX), 0x80);
+ if (ret)
+ goto out;
+
+ /* Common block Direct Control 10 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(DIRECTCTRL10), 0x04);
+ if (ret)
+ goto out;
+
+ /* Common block Direct Control 19 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(DIRECTCTRL19), 0x02);
+ if (ret)
+ goto out;
+
+ /* RX Squelch Detector output is routed to RX hibern8 exit signal */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGRXCDR8,
+ SELIND_LN0_RX), 0x80);
+ if (ret)
+ goto out;
+
+ /* ENARXDIRECTCFG4 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(ENARXDIRECTCFG4,
+ SELIND_LN0_RX), 0x03);
+ if (ret)
+ goto out;
+
+ /* CFGRXOVR8 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGRXOVR8,
+ SELIND_LN0_RX), 0x16);
+ if (ret)
+ goto out;
+
+ /* RXDIRECTCTRL2 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(RXDIRECTCTRL2,
+ SELIND_LN0_RX), 0x42);
+ if (ret)
+ goto out;
+
+ /* ENARXDIRECTCFG3 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(ENARXDIRECTCFG3,
+ SELIND_LN0_RX), 0xa4);
+ if (ret)
+ goto out;
+
+ /* RXCALCTRL */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(RXCALCTRL,
+ SELIND_LN0_RX), 0x01);
+ if (ret)
+ goto out;
+
+ /* ENARXDIRECTCFG2 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(ENARXDIRECTCFG2,
+ SELIND_LN0_RX), 0x01);
+ if (ret)
+ goto out;
+
+ /* CFGOVR4 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGRXOVR4,
+ SELIND_LN0_RX), 0x28);
+ if (ret)
+ goto out;
+
+ /* RXSQCTRL */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(RXSQCTRL,
+ SELIND_LN0_RX), 0x1E);
+ if (ret)
+ goto out;
+
+ /* CFGOVR6 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(CFGRXOVR6,
+ SELIND_LN0_RX), 0x2f);
+ if (ret)
+ goto out;
+
+ /* CBPRGPLL2 */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(CBPRGPLL2), 0x00);
+ if (ret)
+ goto out;
+
+out:
+ return ret;
+}
+
+/**
+ * ufshcd_dwc_setup_mphy()
+ * This function configures Local (host) Synopsys MPHY specific attributes
+ *
+ * @hba: Pointer to drivers structure
+ *
+ * Returns 0 on success non-zero value on failure
+ */
+int ufshcd_dwc_setup_mphy(struct ufs_hba *hba)
+{
+ int ret = 0;
+
+#ifdef CONFIG_SCSI_UFS_DWC_40BIT_RMMI
+ dev_info(hba->dev, "Configuring MPHY 40-bit RMMI");
+ ret = ufshcd_dwc_setup_40bit_rmmi(hba);
+ if (ret) {
+ dev_err(hba->dev, "40-bit RMMI configuration failed");
+ goto out;
+ }
+#else
+#ifdef CONFIG_SCSI_UFS_DWC_20BIT_RMMI
+ dev_info(hba->dev, "Configuring MPHY 20-bit RMMI");
+ ret = ufshcd_dwc_setup_20bit_rmmi(hba);
+ if (ret) {
+ dev_err(hba->dev, "20-bit RMMI configuration failed");
+ goto out;
+ }
+#endif
+#endif
+ /* To write Shadow register bank to effective configuration block */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(VS_MPHYCFGUPDT), 0x01);
+ if (ret)
+ goto out;
+
+ /* To configure Debug OMC */
+ ret = ufshcd_dme_set(hba, UIC_ARG_MIB(VS_DEBUGOMC), 0x01);
+
+out:
+ return ret;
+}
+
+/**
+ * ufshcd_dwc_host_init()
+ * UFS Host DWC specific initialization
+ * @hba: private structure poitner
+ *
+ * Returns 0 on success, non-zero value on failure
+ */
+int ufshcd_dwc_host_configuration(struct ufs_hba *hba)
+{
+ int ret = 0;
+
+ /* Program Clock Divider Value */
+ ufshcd_dwc_program_clk_div(hba, UFSHCD_CLK_DIV_125);
+
+#ifdef CONFIG_SCSI_UFS_DWC_MPHY_TC
+ ret = ufshcd_dwc_setup_mphy(hba);
+ if (ret) {
+ dev_err(hba->dev, "MPHY configuration failed (%d)", ret);
+ goto out;
+ }
+#endif
+ ret = ufshcd_dme_link_startup(hba);
+ if (ret) {
+ dev_err(hba->dev, "Link Startup command failed (%d)", ret);
+ goto out;
+ }
+
+ ret = ufshcd_dwc_link_is_up(hba);
+ if (ret) {
+ dev_err(hba->dev, "Link is not up");
+ goto out;
+ }
+
+ ret = ufshcd_dwc_connection_setup(hba);
+ if (ret) {
+ dev_err(hba->dev, "Connection setup failed (%d)", ret);
+ goto out;
+ }
+
+ ret = ufshcd_make_hba_operational(hba);
+ if (ret) {
+ dev_err(hba->dev, "HBA kick start failed (%d)", ret);
+ goto out;
+ }
+
+ ret = ufshcd_verify_dev_init(hba);
+ if (ret) {
+ dev_err(hba->dev, "Device init failed (%d)", ret);
+ goto out;
+ }
+
+ ret = ufshcd_complete_dev_init(hba);
+ if (ret) {
+ dev_err(hba->dev, "Device final init failed (%d)", ret);
+ goto out;
+ }
+
+ ufshcd_set_ufs_dev_active(hba);
+ hba->wlun_dev_clr_ua = false;
+
+ if (hba->ufshcd_state == UFSHCD_STATE_RESET)
+ scsi_unblock_requests(hba->host);
+
+ hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL;
+
+ scsi_scan_host(hba->host);
+
+out:
+ return ret;
+}
+EXPORT_SYMBOL(ufshcd_dwc_host_configuration);
+#endif
+
/**
* ufshcd_init - Driver initialization routine
* @hba: per-adapter instance
@@ -5645,8 +6449,16 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
*/
ufshcd_set_ufs_dev_poweroff(hba);

+#ifndef CONFIG_SCSI_UFS_DWC_HOOKS
async_schedule(ufshcd_async_scan, hba);
-
+#else
+ /* Synopsys DWC Core + MPHY Test Chip needs a specific init routine */
+ err = ufshcd_dwc_host_configuration(hba);
+ if (err)
+ dev_err(dev, "DWC host configuration failed\n");
+ else
+ dev_info(dev, "DWC host configuration successful\n");
+#endif
return 0;

out_remove_scsi_host:
diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h
index 2570d94..0e1c3d4 100644
--- a/drivers/scsi/ufs/ufshcd.h
+++ b/drivers/scsi/ufs/ufshcd.h
@@ -554,6 +554,10 @@ static inline bool ufshcd_can_autobkops_during_suspend(struct ufs_hba *hba)

static inline bool ufshcd_is_intr_aggr_allowed(struct ufs_hba *hba)
{
+/* DWC Core accepts both IRQ types but does not have this info in HW */
+#ifdef CONFIG_SCSI_UFS_DWC_HOOKS
+ return true;
+#endif
if ((hba->caps & UFSHCD_CAP_INTR_AGGR) &&
!(hba->quirks & UFSHCD_QUIRK_BROKEN_INTR_AGGR))
return true;
@@ -587,6 +591,17 @@ int ufshcd_alloc_host(struct device *, struct ufs_hba **);
void ufshcd_dealloc_host(struct ufs_hba *);
int ufshcd_init(struct ufs_hba * , void __iomem * , unsigned int);
void ufshcd_remove(struct ufs_hba *);
+#ifdef CONFIG_SCSI_UFS_DWC_HOOKS
+void ufshcd_dwc_program_clk_div(struct ufs_hba *, u32);
+int ufshcd_dwc_link_is_up(struct ufs_hba *);
+int ufshcd_dwc_connection_setup(struct ufs_hba *);
+int ufshcd_dwc_setup_20bit_rmmi_lane0(struct ufs_hba *);
+int ufshcd_dwc_setup_20bit_rmmi_lane1(struct ufs_hba *);
+int ufshcd_dwc_setup_20bit_rmmi(struct ufs_hba *);
+int ufshcd_dwc_setup_40bit_rmmi(struct ufs_hba *);
+int ufshcd_dwc_setup_mphy(struct ufs_hba *);
+int ufshcd_dwc_host_configuration(struct ufs_hba *);
+#endif

/**
* ufshcd_hba_stop - Send controller to reset state
diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h
index 0ae0967..9bf67fb 100644
--- a/drivers/scsi/ufs/ufshci.h
+++ b/drivers/scsi/ufs/ufshci.h
@@ -72,8 +72,28 @@ enum {
REG_UIC_COMMAND_ARG_1 = 0x94,
REG_UIC_COMMAND_ARG_2 = 0x98,
REG_UIC_COMMAND_ARG_3 = 0x9C,
+
+/* DWC UFS HC specific Registers */
+#ifdef CONFIG_SCSI_UFS_DWC_HOOKS
+ DWC_UFS_REG_HCLKDIV = 0xFC,
+#endif
};

+#ifdef CONFIG_SCSI_UFS_DWC_HOOKS
+/* Link Status*/
+enum {
+ UFSHCD_LINK_IS_DOWN = 1,
+ UFSHCD_LINK_IS_UP = 2,
+};
+
+/* Clock Divider Values: Hex equivalent of frequency in MHz */
+enum {
+ UFSHCD_CLK_DIV_62_5 = 0x3e,
+ UFSHCD_CLK_DIV_125 = 0x7d,
+ UFSHCD_CLK_DIV_200 = 0xc8,
+};
+#endif
+
/* Controller capability masks */
enum {
MASK_TRANSFER_REQUESTS_SLOTS = 0x0000001F,
@@ -207,6 +227,14 @@ enum {
#define CONFIG_RESULT_CODE_MASK 0xFF
#define GENERIC_ERROR_CODE_MASK 0xFF

+/* Selector Index */
+enum selector_index {
+ SELIND_LN0_TX = 0x00,
+ SELIND_LN1_TX = 0x01,
+ SELIND_LN0_RX = 0x04,
+ SELIND_LN1_RX = 0x05,
+};
+
/* GenSelectorIndex calculation macros for M-PHY attributes */
#define UIC_ARG_MPHY_TX_GEN_SEL_INDEX(lane) (lane)

@@ -273,6 +301,7 @@ enum {
UTP_CMD_TYPE_SCSI = 0x0,
UTP_CMD_TYPE_UFS = 0x1,
UTP_CMD_TYPE_DEV_MANAGE = 0x2,
+ UTP_CMD_TYPE_UFS_STORAGE = 0x11,
};

enum {
diff --git a/drivers/scsi/ufs/unipro.h b/drivers/scsi/ufs/unipro.h
index 816a8a4..da16254 100644
--- a/drivers/scsi/ufs/unipro.h
+++ b/drivers/scsi/ufs/unipro.h
@@ -35,6 +35,10 @@
#define TX_LCC_SEQUENCER 0x0032
#define TX_MIN_ACTIVATETIME 0x0033
#define TX_PWM_G6_G7_SYNC_LENGTH 0x0034
+#define TX_REFCLKFREQ 0x00EB
+#define TX_CFGCLKFREQVAL 0x00EC
+#define CFGEXTRATTR 0x00F0
+#define DITHERCTRL2 0x00F1

/*
* M-RX Configuration Attributes
@@ -48,8 +52,38 @@
#define RX_ENTER_HIBERN8 0x00A7
#define RX_BYPASS_8B10B_ENABLE 0x00A8
#define RX_TERMINATION_FORCE_ENABLE 0x0089
+#define RX_REFCLKFREQ 0x00EB
+#define RX_CFGCLKFREQVAL 0x00EC
+#define CFGWIDEINLN 0x00F0
+#define CFGRXCDR8 0x00BA
+#define ENARXDIRECTCFG4 0x00F2
+#define CFGRXOVR8 0x00BD
+#define RXDIRECTCTRL2 0x00C7
+#define ENARXDIRECTCFG3 0x00F3
+#define RXCALCTRL 0x00B4
+#define ENARXDIRECTCFG2 0x00F4
+#define CFGRXOVR4 0x00E9
+#define RXSQCTRL 0x00B5
+#define CFGRXOVR6 0x00BF

#define is_mphy_tx_attr(attr) (attr < RX_MODE)
+
+/*
+ * Common Block Attributes
+ */
+#define TX_GLOBALHIBERNATE UNIPRO_CB_OFFSET(0x002B)
+#define REFCLKMODE UNIPRO_CB_OFFSET(0x00BF)
+#define DIRECTCTRL19 UNIPRO_CB_OFFSET(0x00CD)
+#define DIRECTCTRL10 UNIPRO_CB_OFFSET(0x00E6)
+#define CDIRECTCTRL6 UNIPRO_CB_OFFSET(0x00EA)
+#define RTOBSERVESELECT UNIPRO_CB_OFFSET(0x00F0)
+#define CBDIVFACTOR UNIPRO_CB_OFFSET(0x00F1)
+#define CBDCOCTRL5 UNIPRO_CB_OFFSET(0x00F3)
+#define CBPRGPLL2 UNIPRO_CB_OFFSET(0x00F8)
+#define CBPRGTUNING UNIPRO_CB_OFFSET(0x00FB)
+
+#define UNIPRO_CB_OFFSET(x) (0x8000 | x)
+
/*
* PHY Adpater attributes
*/
@@ -110,6 +144,11 @@
#define PA_STALLNOCONFIGTIME 0x15A3
#define PA_SAVECONFIGTIME 0x15A4

+/*Other attributes*/
+#define VS_MPHYCFGUPDT 0xD085
+#define VS_DEBUGOMC 0xD09E
+#define VS_POWERSTATE 0xD083
+
/* PA power modes */
enum {
FAST_MODE = 1,
--
1.8.1.5