diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/ufs/Kconfig | 8 | ||||
| -rw-r--r-- | drivers/scsi/ufs/Makefile | 1 | ||||
| -rw-r--r-- | drivers/scsi/ufs/tc-dwc-g210-pltfrm.c | 113 |
3 files changed, 122 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig index 097894a1fab5..81fdfb376ea5 100644 --- a/drivers/scsi/ufs/Kconfig +++ b/drivers/scsi/ufs/Kconfig @@ -72,6 +72,14 @@ config SCSI_UFSHCD_PLATFORM If unsure, say N. +config SCSI_UFS_DWC_TC_PLATFORM + tristate "DesignWare platform support using a G210 Test Chip" + depends on SCSI_UFSHCD_PLATFORM + ---help--- + Synopsys Test Chip is a PHY for prototyping purposes. + + If unsure, say N. + config SCSI_UFS_QCOM tristate "QCOM specific hooks to UFS controller platform driver" depends on SCSI_UFSHCD_PLATFORM && ARCH_QCOM diff --git a/drivers/scsi/ufs/Makefile b/drivers/scsi/ufs/Makefile index 8303bcce7a23..d5774c64a0bb 100644 --- a/drivers/scsi/ufs/Makefile +++ b/drivers/scsi/ufs/Makefile @@ -1,4 +1,5 @@ # UFSHCD makefile +obj-$(CONFIG_SCSI_UFS_DWC_TC_PLATFORM) += tc-dwc-g210-pltfrm.o ufshcd-dwc.o tc-dwc-g210.o obj-$(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/tc-dwc-g210-pltfrm.c b/drivers/scsi/ufs/tc-dwc-g210-pltfrm.c new file mode 100644 index 000000000000..2d3f5270f875 --- /dev/null +++ b/drivers/scsi/ufs/tc-dwc-g210-pltfrm.c @@ -0,0 +1,113 @@ +/* + * Synopsys G210 Test Chip driver + * + * Copyright (C) 2015-2016 Synopsys, Inc. (www.synopsys.com) + * + * Authors: Joao Pinto <jpinto@synopsys.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/of.h> +#include <linux/delay.h> + +#include "ufshcd-pltfrm.h" +#include "ufshcd-dwc.h" +#include "tc-dwc-g210.h" + +/** + * UFS DWC specific variant operations + */ +static struct ufs_hba_variant_ops tc_dwc_g210_20bit_pltfm_hba_vops = { + .name = "tc-dwc-g210-pltfm", + .link_startup_notify = ufshcd_dwc_link_startup_notify, + .phy_initialization = tc_dwc_g210_config_20_bit, +}; + +static struct ufs_hba_variant_ops tc_dwc_g210_40bit_pltfm_hba_vops = { + .name = "tc-dwc-g210-pltfm", + .link_startup_notify = ufshcd_dwc_link_startup_notify, + .phy_initialization = tc_dwc_g210_config_40_bit, +}; + +static const struct of_device_id tc_dwc_g210_pltfm_match[] = { + { + .compatible = "snps,g210-tc-6.00-20bit", + .data = &tc_dwc_g210_20bit_pltfm_hba_vops, + }, + { + .compatible = "snps,g210-tc-6.00-40bit", + .data = &tc_dwc_g210_40bit_pltfm_hba_vops, + }, + { }, +}; +MODULE_DEVICE_TABLE(of, tc_dwc_g210_pltfm_match); + +/** + * tc_dwc_g210_pltfm_probe() + * @pdev: pointer to platform device structure + * + */ +static int tc_dwc_g210_pltfm_probe(struct platform_device *pdev) +{ + int err; + const struct of_device_id *of_id; + struct ufs_hba_variant_ops *vops; + struct device *dev = &pdev->dev; + + of_id = of_match_node(tc_dwc_g210_pltfm_match, dev->of_node); + vops = (struct ufs_hba_variant_ops *)of_id->data; + + /* Perform generic probe */ + err = ufshcd_pltfrm_init(pdev, vops); + if (err) + dev_err(dev, "ufshcd_pltfrm_init() failed %d\n", err); + + return err; +} + +/** + * tc_dwc_g210_pltfm_remove() + * @pdev: pointer to platform device structure + * + */ +static int tc_dwc_g210_pltfm_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 dev_pm_ops tc_dwc_g210_pltfm_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 tc_dwc_g210_pltfm_driver = { + .probe = tc_dwc_g210_pltfm_probe, + .remove = tc_dwc_g210_pltfm_remove, + .shutdown = ufshcd_pltfrm_shutdown, + .driver = { + .name = "tc-dwc-g210-pltfm", + .pm = &tc_dwc_g210_pltfm_pm_ops, + .of_match_table = of_match_ptr(tc_dwc_g210_pltfm_match), + }, +}; + +module_platform_driver(tc_dwc_g210_pltfm_driver); + +MODULE_ALIAS("platform:tc-dwc-g210-pltfm"); +MODULE_DESCRIPTION("Synopsys Test Chip G210 platform glue driver"); +MODULE_AUTHOR("Joao Pinto <Joao.Pinto@synopsys.com>"); +MODULE_LICENSE("Dual BSD/GPL"); |