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path: root/drivers/ufs/host/tc-dwc-g210.c
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Diffstat (limited to 'drivers/ufs/host/tc-dwc-g210.c')
-rw-r--r--drivers/ufs/host/tc-dwc-g210.c319
1 files changed, 319 insertions, 0 deletions
diff --git a/drivers/ufs/host/tc-dwc-g210.c b/drivers/ufs/host/tc-dwc-g210.c
new file mode 100644
index 000000000000..deb93dbd83a4
--- /dev/null
+++ b/drivers/ufs/host/tc-dwc-g210.c
@@ -0,0 +1,319 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Synopsys G210 Test Chip driver
+ *
+ * Copyright (C) 2015-2016 Synopsys, Inc. (www.synopsys.com)
+ *
+ * Authors: Joao Pinto <jpinto@synopsys.com>
+ */
+
+#include <linux/module.h>
+
+#include <ufs/ufshcd.h>
+#include <ufs/unipro.h>
+
+#include "ufshcd-dwc.h"
+#include "ufshci-dwc.h"
+#include "tc-dwc-g210.h"
+
+/**
+ * tc_dwc_g210_setup_40bit_rmmi()
+ * This function configures Synopsys TC specific atributes (40-bit RMMI)
+ * @hba: Pointer to drivers structure
+ *
+ * Returns 0 on success or non-zero value on failure
+ */
+static int tc_dwc_g210_setup_40bit_rmmi(struct ufs_hba *hba)
+{
+ static const struct ufshcd_dme_attr_val setup_attrs[] = {
+ { UIC_ARG_MIB(TX_GLOBALHIBERNATE), 0x00, DME_LOCAL },
+ { UIC_ARG_MIB(REFCLKMODE), 0x01, DME_LOCAL },
+ { UIC_ARG_MIB(CDIRECTCTRL6), 0x80, DME_LOCAL },
+ { UIC_ARG_MIB(CBDIVFACTOR), 0x08, DME_LOCAL },
+ { UIC_ARG_MIB(CBDCOCTRL5), 0x64, DME_LOCAL },
+ { UIC_ARG_MIB(CBPRGTUNING), 0x09, DME_LOCAL },
+ { UIC_ARG_MIB(RTOBSERVESELECT), 0x00, DME_LOCAL },
+ { UIC_ARG_MIB_SEL(TX_REFCLKFREQ, SELIND_LN0_TX), 0x01,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(TX_CFGCLKFREQVAL, SELIND_LN0_TX), 0x19,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGEXTRATTR, SELIND_LN0_TX), 0x14,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(DITHERCTRL2, SELIND_LN0_TX), 0xd6,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(RX_REFCLKFREQ, SELIND_LN0_RX), 0x01,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(RX_CFGCLKFREQVAL, SELIND_LN0_RX), 0x19,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGWIDEINLN, SELIND_LN0_RX), 4,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGRXCDR8, SELIND_LN0_RX), 0x80,
+ DME_LOCAL },
+ { UIC_ARG_MIB(DIRECTCTRL10), 0x04, DME_LOCAL },
+ { UIC_ARG_MIB(DIRECTCTRL19), 0x02, DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGRXCDR8, SELIND_LN0_RX), 0x80,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(ENARXDIRECTCFG4, SELIND_LN0_RX), 0x03,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGRXOVR8, SELIND_LN0_RX), 0x16,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(RXDIRECTCTRL2, SELIND_LN0_RX), 0x42,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(ENARXDIRECTCFG3, SELIND_LN0_RX), 0xa4,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(RXCALCTRL, SELIND_LN0_RX), 0x01,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(ENARXDIRECTCFG2, SELIND_LN0_RX), 0x01,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGRXOVR4, SELIND_LN0_RX), 0x28,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(RXSQCTRL, SELIND_LN0_RX), 0x1E,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGRXOVR6, SELIND_LN0_RX), 0x2f,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGRXOVR6, SELIND_LN0_RX), 0x2f,
+ DME_LOCAL },
+ { UIC_ARG_MIB(CBPRGPLL2), 0x00, DME_LOCAL },
+ };
+
+ return ufshcd_dwc_dme_set_attrs(hba, setup_attrs,
+ ARRAY_SIZE(setup_attrs));
+}
+
+/**
+ * tc_dwc_g210_setup_20bit_rmmi_lane0()
+ * This function configures Synopsys TC 20-bit RMMI Lane 0
+ * @hba: Pointer to drivers structure
+ *
+ * Returns 0 on success or non-zero value on failure
+ */
+static int tc_dwc_g210_setup_20bit_rmmi_lane0(struct ufs_hba *hba)
+{
+ static const struct ufshcd_dme_attr_val setup_attrs[] = {
+ { UIC_ARG_MIB_SEL(TX_REFCLKFREQ, SELIND_LN0_TX), 0x01,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(TX_CFGCLKFREQVAL, SELIND_LN0_TX), 0x19,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(RX_CFGCLKFREQVAL, SELIND_LN0_RX), 0x19,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGEXTRATTR, SELIND_LN0_TX), 0x12,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(DITHERCTRL2, SELIND_LN0_TX), 0xd6,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(RX_REFCLKFREQ, SELIND_LN0_RX), 0x01,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGWIDEINLN, SELIND_LN0_RX), 2,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGRXCDR8, SELIND_LN0_RX), 0x80,
+ DME_LOCAL },
+ { UIC_ARG_MIB(DIRECTCTRL10), 0x04, DME_LOCAL },
+ { UIC_ARG_MIB(DIRECTCTRL19), 0x02, DME_LOCAL },
+ { UIC_ARG_MIB_SEL(ENARXDIRECTCFG4, SELIND_LN0_RX), 0x03,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGRXOVR8, SELIND_LN0_RX), 0x16,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(RXDIRECTCTRL2, SELIND_LN0_RX), 0x42,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(ENARXDIRECTCFG3, SELIND_LN0_RX), 0xa4,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(RXCALCTRL, SELIND_LN0_RX), 0x01,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(ENARXDIRECTCFG2, SELIND_LN0_RX), 0x01,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGRXOVR4, SELIND_LN0_RX), 0x28,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(RXSQCTRL, SELIND_LN0_RX), 0x1E,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGRXOVR6, SELIND_LN0_RX), 0x2f,
+ DME_LOCAL },
+ { UIC_ARG_MIB(CBPRGPLL2), 0x00, DME_LOCAL },
+ };
+
+ return ufshcd_dwc_dme_set_attrs(hba, setup_attrs,
+ ARRAY_SIZE(setup_attrs));
+}
+
+/**
+ * tc_dwc_g210_setup_20bit_rmmi_lane1()
+ * This function configures Synopsys TC 20-bit RMMI Lane 1
+ * @hba: Pointer to drivers structure
+ *
+ * Returns 0 on success or non-zero value on failure
+ */
+static int tc_dwc_g210_setup_20bit_rmmi_lane1(struct ufs_hba *hba)
+{
+ int connected_rx_lanes = 0;
+ int connected_tx_lanes = 0;
+ int ret = 0;
+
+ static const struct ufshcd_dme_attr_val setup_tx_attrs[] = {
+ { UIC_ARG_MIB_SEL(TX_REFCLKFREQ, SELIND_LN1_TX), 0x0d,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(TX_CFGCLKFREQVAL, SELIND_LN1_TX), 0x19,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGEXTRATTR, SELIND_LN1_TX), 0x12,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(DITHERCTRL2, SELIND_LN0_TX), 0xd6,
+ DME_LOCAL },
+ };
+
+ static const struct ufshcd_dme_attr_val setup_rx_attrs[] = {
+ { UIC_ARG_MIB_SEL(RX_REFCLKFREQ, SELIND_LN1_RX), 0x01,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(RX_CFGCLKFREQVAL, SELIND_LN1_RX), 0x19,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGWIDEINLN, SELIND_LN1_RX), 2,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGRXCDR8, SELIND_LN1_RX), 0x80,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(ENARXDIRECTCFG4, SELIND_LN1_RX), 0x03,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGRXOVR8, SELIND_LN1_RX), 0x16,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(RXDIRECTCTRL2, SELIND_LN1_RX), 0x42,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(ENARXDIRECTCFG3, SELIND_LN1_RX), 0xa4,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(RXCALCTRL, SELIND_LN1_RX), 0x01,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(ENARXDIRECTCFG2, SELIND_LN1_RX), 0x01,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGRXOVR4, SELIND_LN1_RX), 0x28,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(RXSQCTRL, SELIND_LN1_RX), 0x1E,
+ DME_LOCAL },
+ { UIC_ARG_MIB_SEL(CFGRXOVR6, SELIND_LN1_RX), 0x2f,
+ DME_LOCAL },
+ };
+
+ /* Get the available lane count */
+ ufshcd_dme_get(hba, UIC_ARG_MIB(PA_AVAILRXDATALANES),
+ &connected_rx_lanes);
+ ufshcd_dme_get(hba, UIC_ARG_MIB(PA_AVAILTXDATALANES),
+ &connected_tx_lanes);
+
+ if (connected_tx_lanes == 2) {
+
+ ret = ufshcd_dwc_dme_set_attrs(hba, setup_tx_attrs,
+ ARRAY_SIZE(setup_tx_attrs));
+
+ if (ret)
+ goto out;
+ }
+
+ if (connected_rx_lanes == 2) {
+ ret = ufshcd_dwc_dme_set_attrs(hba, setup_rx_attrs,
+ ARRAY_SIZE(setup_rx_attrs));
+ }
+
+out:
+ return ret;
+}
+
+/**
+ * tc_dwc_g210_setup_20bit_rmmi()
+ * This function configures Synopsys TC specific atributes (20-bit RMMI)
+ * @hba: Pointer to drivers structure
+ *
+ * Returns 0 on success or non-zero value on failure
+ */
+static int tc_dwc_g210_setup_20bit_rmmi(struct ufs_hba *hba)
+{
+ int ret = 0;
+
+ static const struct ufshcd_dme_attr_val setup_attrs[] = {
+ { UIC_ARG_MIB(TX_GLOBALHIBERNATE), 0x00, DME_LOCAL },
+ { UIC_ARG_MIB(REFCLKMODE), 0x01, DME_LOCAL },
+ { UIC_ARG_MIB(CDIRECTCTRL6), 0xc0, DME_LOCAL },
+ { UIC_ARG_MIB(CBDIVFACTOR), 0x44, DME_LOCAL },
+ { UIC_ARG_MIB(CBDCOCTRL5), 0x64, DME_LOCAL },
+ { UIC_ARG_MIB(CBPRGTUNING), 0x09, DME_LOCAL },
+ { UIC_ARG_MIB(RTOBSERVESELECT), 0x00, DME_LOCAL },
+ };
+
+ ret = ufshcd_dwc_dme_set_attrs(hba, setup_attrs,
+ ARRAY_SIZE(setup_attrs));
+ if (ret)
+ goto out;
+
+ /* Lane 0 configuration*/
+ ret = tc_dwc_g210_setup_20bit_rmmi_lane0(hba);
+ if (ret)
+ goto out;
+
+ /* Lane 1 configuration*/
+ ret = tc_dwc_g210_setup_20bit_rmmi_lane1(hba);
+ if (ret)
+ goto out;
+
+out:
+ return ret;
+}
+
+/**
+ * tc_dwc_g210_config_40_bit()
+ * This function configures Local (host) Synopsys 40-bit TC specific attributes
+ *
+ * @hba: Pointer to drivers structure
+ *
+ * Returns 0 on success non-zero value on failure
+ */
+int tc_dwc_g210_config_40_bit(struct ufs_hba *hba)
+{
+ int ret = 0;
+
+ dev_info(hba->dev, "Configuring Test Chip 40-bit RMMI\n");
+ ret = tc_dwc_g210_setup_40bit_rmmi(hba);
+ if (ret) {
+ dev_err(hba->dev, "Configuration failed\n");
+ goto out;
+ }
+
+ /* 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;
+}
+EXPORT_SYMBOL(tc_dwc_g210_config_40_bit);
+
+/**
+ * tc_dwc_g210_config_20_bit()
+ * This function configures Local (host) Synopsys 20-bit TC specific attributes
+ *
+ * @hba: Pointer to drivers structure
+ *
+ * Returns 0 on success non-zero value on failure
+ */
+int tc_dwc_g210_config_20_bit(struct ufs_hba *hba)
+{
+ int ret = 0;
+
+ dev_info(hba->dev, "Configuring Test Chip 20-bit RMMI\n");
+ ret = tc_dwc_g210_setup_20bit_rmmi(hba);
+ if (ret) {
+ dev_err(hba->dev, "Configuration failed\n");
+ goto out;
+ }
+
+ /* 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;
+}
+EXPORT_SYMBOL(tc_dwc_g210_config_20_bit);
+
+MODULE_AUTHOR("Joao Pinto <Joao.Pinto@synopsys.com>");
+MODULE_DESCRIPTION("Synopsys G210 Test Chip driver");
+MODULE_LICENSE("Dual BSD/GPL");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-30 05:39:10 +0000