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linux/drivers/ufs/host/tc-dwc-g210.c
Bart Van Assche dd11376b9f scsi: ufs: Split the drivers/scsi/ufs directory 
Split the drivers/scsi/ufs directory into 'core' and 'host' directories
under the drivers/ufs/ directory. Move shared header files into the
include/ufs/ directory. This separation makes it clear which header files
UFS drivers are allowed to include (include/ufs/*.h) and which header files
UFS drivers are not allowed to include (drivers/ufs/core/*.h).

Update the MAINTAINERS file. Add myself as a UFS reviewer.

Link: https://lore.kernel.org/r/20220511212552.655341-1-bvanassche@acm.org
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: Bean Huo <beanhuo@micron.com>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Keoseong Park <keosung.park@samsung.com>
Tested-by: Bean Huo <beanhuo@micron.com>
Tested-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Acked-by: Avri Altman <avri.altman@wdc.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2022-05-19 20:27:37 -04:00

320 lines
9.3 KiB
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// 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");
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