diff options
Diffstat (limited to 'target/linux/ipq806x/patches-4.9/820-qcom-ipq4019-Add-IPQ4019-USB-HS-SS-PHY-drivers.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-4.9/820-qcom-ipq4019-Add-IPQ4019-USB-HS-SS-PHY-drivers.patch | 429 |
1 files changed, 429 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches-4.9/820-qcom-ipq4019-Add-IPQ4019-USB-HS-SS-PHY-drivers.patch b/target/linux/ipq806x/patches-4.9/820-qcom-ipq4019-Add-IPQ4019-USB-HS-SS-PHY-drivers.patch new file mode 100644 index 0000000000..3636c5ca01 --- /dev/null +++ b/target/linux/ipq806x/patches-4.9/820-qcom-ipq4019-Add-IPQ4019-USB-HS-SS-PHY-drivers.patch @@ -0,0 +1,429 @@ +From e73682ec4455c34f3f3edc7f40d90ed297521012 Mon Sep 17 00:00:00 2001 +From: Senthilkumar N L <snlakshm@codeaurora.org> +Date: Tue, 6 Jan 2015 12:52:23 +0530 +Subject: [PATCH] qcom: ipq4019: Add IPQ4019 USB HS/SS PHY drivers + +These drivers handles control and configuration of the HS +and SS USB PHY transceivers. + +Signed-off-by: Senthilkumar N L <snlakshm@codeaurora.org> +Signed-off-by: Christian Lamparter <chunkeey@gmail.com> + +--- +Changed: + - replaced spaces with tabs + - remove emulation and host variables +--- + drivers/usb/phy/Kconfig | 11 ++ + drivers/usb/phy/Makefile | 2 + + drivers/usb/phy/phy-qca-baldur.c | 233 +++++++++++++++++++++++++++++++++++++++ + drivers/usb/phy/phy-qca-uniphy.c | 141 +++++++++++++++++++++++ + 4 files changed, 387 insertions(+) + create mode 100644 drivers/usb/phy/phy-qca-baldur.c + create mode 100644 drivers/usb/phy/phy-qca-uniphy.c + +--- a/drivers/usb/phy/Kconfig ++++ b/drivers/usb/phy/Kconfig +@@ -194,6 +194,17 @@ config USB_MXS_PHY + + MXS Phy is used by some of the i.MX SoCs, for example imx23/28/6x. + ++config USB_IPQ4019_PHY ++ tristate "IPQ4019 PHY wrappers support" ++ depends on (USB || USB_GADGET) && ARCH_QCOM ++ select USB_PHY ++ help ++ Enable this to support the USB PHY transceivers on QCA961x chips. ++ It handles PHY initialization, clock management required after ++ resetting the hardware and power management. ++ This driver is required even for peripheral only or host only ++ mode configurations. ++ + config USB_ULPI + bool "Generic ULPI Transceiver Driver" + depends on ARM || ARM64 +--- a/drivers/usb/phy/Makefile ++++ b/drivers/usb/phy/Makefile +@@ -21,6 +21,8 @@ obj-$(CONFIG_USB_GPIO_VBUS) += phy-gpio + obj-$(CONFIG_USB_ISP1301) += phy-isp1301.o + obj-$(CONFIG_USB_MSM_OTG) += phy-msm-usb.o + obj-$(CONFIG_USB_QCOM_8X16_PHY) += phy-qcom-8x16-usb.o ++obj-$(CONFIG_USB_IPQ4019_PHY) += phy-qca-baldur.o ++obj-$(CONFIG_USB_IPQ4019_PHY) += phy-qca-uniphy.o + obj-$(CONFIG_USB_MV_OTG) += phy-mv-usb.o + obj-$(CONFIG_USB_MXS_PHY) += phy-mxs-usb.o + obj-$(CONFIG_USB_ULPI) += phy-ulpi.o +--- /dev/null ++++ b/drivers/usb/phy/phy-qca-baldur.c +@@ -0,0 +1,233 @@ ++/* Copyright (c) 2015, The Linux Foundation. All rights reserved. ++ * ++ * Permission to use, copy, modify, and/or distribute this software for any ++ * purpose with or without fee is hereby granted, provided that the above ++ * copyright notice and this permission notice appear in all copies. ++ * ++ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES ++ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF ++ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ++ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES ++ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ++ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF ++ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ++ * ++ */ ++ ++#include <linux/clk.h> ++#include <linux/err.h> ++#include <linux/io.h> ++#include <linux/module.h> ++#include <linux/of.h> ++#include <linux/platform_device.h> ++#include <linux/regulator/consumer.h> ++#include <linux/usb/phy.h> ++#include <linux/reset.h> ++#include <linux/of_device.h> ++ ++/** ++ * USB Hardware registers ++ */ ++#define PHY_CTRL0_ADDR 0x000 ++#define PHY_CTRL1_ADDR 0x004 ++#define PHY_CTRL2_ADDR 0x008 ++#define PHY_CTRL3_ADDR 0x00C ++#define PHY_CTRL4_ADDR 0x010 ++#define PHY_MISC_ADDR 0x024 ++#define PHY_IPG_ADDR 0x030 ++ ++#define PHY_CTRL0_VAL 0xA4600015 ++#define PHY_CTRL1_VAL 0x09500000 ++#define PHY_CTRL2_VAL 0x00058180 ++#define PHY_CTRL3_VAL 0x6DB6DCD6 ++#define PHY_CTRL4_VAL 0x836DB6DB ++#define PHY_MISC_VAL 0x3803FB0C ++#define PHY_IPG_VAL 0x47323232 ++ ++#define USB30_HS_PHY_HOST_MODE (0x01 << 21) ++#define USB20_HS_PHY_HOST_MODE (0x01 << 5) ++ ++/* used to differentiate between USB3 HS and USB2 HS PHY */ ++struct qca_baldur_hs_data { ++ unsigned int usb3_hs_phy; ++ unsigned int phy_config_offset; ++}; ++ ++struct qca_baldur_hs_phy { ++ struct device *dev; ++ struct usb_phy phy; ++ ++ void __iomem *base; ++ void __iomem *qscratch_base; ++ ++ struct reset_control *por_rst; ++ struct reset_control *srif_rst; ++ ++ const struct qca_baldur_hs_data *data; ++}; ++ ++#define phy_to_dw_phy(x) container_of((x), struct qca_baldur_hs_phy, phy) ++ ++static int qca_baldur_phy_read(struct usb_phy *x, u32 reg) ++{ ++ struct qca_baldur_hs_phy *phy = phy_to_dw_phy(x); ++ ++ return readl(phy->base + reg); ++} ++ ++static int qca_baldur_phy_write(struct usb_phy *x, u32 val, u32 reg) ++{ ++ struct qca_baldur_hs_phy *phy = phy_to_dw_phy(x); ++ ++ writel(val, phy->base + reg); ++ return 0; ++} ++ ++static int qca_baldur_hs_phy_init(struct usb_phy *x) ++{ ++ struct qca_baldur_hs_phy *phy = phy_to_dw_phy(x); ++ ++ /* assert HS PHY POR reset */ ++ reset_control_assert(phy->por_rst); ++ msleep(10); ++ ++ /* assert HS PHY SRIF reset */ ++ reset_control_assert(phy->srif_rst); ++ msleep(10); ++ ++ /* deassert HS PHY SRIF reset and program HS PHY registers */ ++ reset_control_deassert(phy->srif_rst); ++ msleep(10); ++ ++ /* perform PHY register writes */ ++ writel(PHY_CTRL0_VAL, phy->base + PHY_CTRL0_ADDR); ++ writel(PHY_CTRL1_VAL, phy->base + PHY_CTRL1_ADDR); ++ writel(PHY_CTRL2_VAL, phy->base + PHY_CTRL2_ADDR); ++ writel(PHY_CTRL3_VAL, phy->base + PHY_CTRL3_ADDR); ++ writel(PHY_CTRL4_VAL, phy->base + PHY_CTRL4_ADDR); ++ writel(PHY_MISC_VAL, phy->base + PHY_MISC_ADDR); ++ writel(PHY_IPG_VAL, phy->base + PHY_IPG_ADDR); ++ ++ msleep(10); ++ ++ /* de-assert USB3 HS PHY POR reset */ ++ reset_control_deassert(phy->por_rst); ++ ++ return 0; ++} ++ ++static int qca_baldur_hs_get_resources(struct qca_baldur_hs_phy *phy) ++{ ++ struct platform_device *pdev = to_platform_device(phy->dev); ++ struct resource *res; ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ phy->base = devm_ioremap_resource(phy->dev, res); ++ if (IS_ERR(phy->base)) ++ return PTR_ERR(phy->base); ++ ++ phy->por_rst = devm_reset_control_get(phy->dev, "por_rst"); ++ if (IS_ERR(phy->por_rst)) ++ return PTR_ERR(phy->por_rst); ++ ++ phy->srif_rst = devm_reset_control_get(phy->dev, "srif_rst"); ++ if (IS_ERR(phy->srif_rst)) ++ return PTR_ERR(phy->srif_rst); ++ ++ return 0; ++} ++ ++static void qca_baldur_hs_put_resources(struct qca_baldur_hs_phy *phy) ++{ ++ reset_control_assert(phy->srif_rst); ++ reset_control_assert(phy->por_rst); ++} ++ ++static int qca_baldur_hs_remove(struct platform_device *pdev) ++{ ++ struct qca_baldur_hs_phy *phy = platform_get_drvdata(pdev); ++ ++ usb_remove_phy(&phy->phy); ++ return 0; ++} ++ ++static void qca_baldur_hs_phy_shutdown(struct usb_phy *x) ++{ ++ struct qca_baldur_hs_phy *phy = phy_to_dw_phy(x); ++ ++ qca_baldur_hs_put_resources(phy); ++} ++ ++static struct usb_phy_io_ops qca_baldur_io_ops = { ++ .read = qca_baldur_phy_read, ++ .write = qca_baldur_phy_write, ++}; ++ ++static const struct qca_baldur_hs_data usb3_hs_data = { ++ .usb3_hs_phy = 1, ++ .phy_config_offset = USB30_HS_PHY_HOST_MODE, ++}; ++ ++static const struct qca_baldur_hs_data usb2_hs_data = { ++ .usb3_hs_phy = 0, ++ .phy_config_offset = USB20_HS_PHY_HOST_MODE, ++}; ++ ++static const struct of_device_id qca_baldur_hs_id_table[] = { ++ { .compatible = "qca,baldur-usb3-hsphy", .data = &usb3_hs_data }, ++ { .compatible = "qca,baldur-usb2-hsphy", .data = &usb2_hs_data }, ++ { /* Sentinel */ } ++}; ++MODULE_DEVICE_TABLE(of, qca_baldur_hs_id_table); ++ ++static int qca_baldur_hs_probe(struct platform_device *pdev) ++{ ++ const struct of_device_id *match; ++ struct qca_baldur_hs_phy *phy; ++ int err; ++ ++ match = of_match_device(qca_baldur_hs_id_table, &pdev->dev); ++ if (!match) ++ return -ENODEV; ++ ++ phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL); ++ if (!phy) ++ return -ENOMEM; ++ ++ platform_set_drvdata(pdev, phy); ++ phy->dev = &pdev->dev; ++ ++ phy->data = match->data; ++ ++ err = qca_baldur_hs_get_resources(phy); ++ if (err < 0) { ++ dev_err(&pdev->dev, "failed to request resources: %d\n", err); ++ return err; ++ } ++ ++ phy->phy.dev = phy->dev; ++ phy->phy.label = "qca-baldur-hsphy"; ++ phy->phy.init = qca_baldur_hs_phy_init; ++ phy->phy.shutdown = qca_baldur_hs_phy_shutdown; ++ phy->phy.type = USB_PHY_TYPE_USB2; ++ phy->phy.io_ops = &qca_baldur_io_ops; ++ ++ err = usb_add_phy_dev(&phy->phy); ++ return err; ++} ++ ++static struct platform_driver qca_baldur_hs_driver = { ++ .probe = qca_baldur_hs_probe, ++ .remove = qca_baldur_hs_remove, ++ .driver = { ++ .name = "qca-baldur-hsphy", ++ .owner = THIS_MODULE, ++ .of_match_table = qca_baldur_hs_id_table, ++ }, ++}; ++ ++module_platform_driver(qca_baldur_hs_driver); ++ ++MODULE_ALIAS("platform:qca-baldur-hsphy"); ++MODULE_LICENSE("Dual BSD/GPL"); ++MODULE_DESCRIPTION("USB3 QCA BALDUR HSPHY driver"); +--- /dev/null ++++ b/drivers/usb/phy/phy-qca-uniphy.c +@@ -0,0 +1,135 @@ ++/* Copyright (c) 2015, The Linux Foundation. All rights reserved. ++ * ++ * Permission to use, copy, modify, and/or distribute this software for any ++ * purpose with or without fee is hereby granted, provided that the above ++ * copyright notice and this permission notice appear in all copies. ++ * ++ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES ++ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF ++ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ++ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES ++ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ++ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF ++ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ++ * ++ */ ++ ++#include <linux/clk.h> ++#include <linux/err.h> ++#include <linux/io.h> ++#include <linux/module.h> ++#include <linux/of.h> ++#include <linux/platform_device.h> ++#include <linux/regulator/consumer.h> ++#include <linux/usb/phy.h> ++#include <linux/reset.h> ++#include <linux/of_device.h> ++ ++struct qca_uni_ss_phy { ++ struct usb_phy phy; ++ struct device *dev; ++ ++ void __iomem *base; ++ ++ struct reset_control *por_rst; ++}; ++ ++#define phy_to_dw_phy(x) container_of((x), struct qca_uni_ss_phy, phy) ++ ++static void qca_uni_ss_phy_shutdown(struct usb_phy *x) ++{ ++ struct qca_uni_ss_phy *phy = phy_to_dw_phy(x); ++ ++ /* assert SS PHY POR reset */ ++ reset_control_assert(phy->por_rst); ++} ++ ++static int qca_uni_ss_phy_init(struct usb_phy *x) ++{ ++ struct qca_uni_ss_phy *phy = phy_to_dw_phy(x); ++ ++ /* assert SS PHY POR reset */ ++ reset_control_assert(phy->por_rst); ++ ++ msleep(20); ++ ++ /* deassert SS PHY POR reset */ ++ reset_control_deassert(phy->por_rst); ++ ++ return 0; ++} ++ ++static int qca_uni_ss_get_resources(struct platform_device *pdev, ++ struct qca_uni_ss_phy *phy) ++{ ++ struct resource *res; ++ ++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); ++ phy->base = devm_ioremap_resource(phy->dev, res); ++ if (IS_ERR(phy->base)) ++ return PTR_ERR(phy->base); ++ ++ phy->por_rst = devm_reset_control_get(phy->dev, "por_rst"); ++ if (IS_ERR(phy->por_rst)) ++ return PTR_ERR(phy->por_rst); ++ ++ return 0; ++} ++ ++static int qca_uni_ss_remove(struct platform_device *pdev) ++{ ++ struct qca_uni_ss_phy *phy = platform_get_drvdata(pdev); ++ ++ usb_remove_phy(&phy->phy); ++ return 0; ++} ++ ++static const struct of_device_id qca_uni_ss_id_table[] = { ++ { .compatible = "qca,uni-ssphy" }, ++ { /* Sentinel */ } ++}; ++MODULE_DEVICE_TABLE(of, qca_uni_ss_id_table); ++ ++static int qca_uni_ss_probe(struct platform_device *pdev) ++{ ++ struct qca_uni_ss_phy *phy; ++ int ret; ++ ++ phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL); ++ if (!phy) ++ return -ENOMEM; ++ ++ platform_set_drvdata(pdev, phy); ++ phy->dev = &pdev->dev; ++ ++ ret = qca_uni_ss_get_resources(pdev, phy); ++ if (ret < 0) { ++ dev_err(&pdev->dev, "failed to request resources: %d\n", ret); ++ return ret; ++ } ++ ++ phy->phy.dev = phy->dev; ++ phy->phy.label = "qca-uni-ssphy"; ++ phy->phy.init = qca_uni_ss_phy_init; ++ phy->phy.shutdown = qca_uni_ss_phy_shutdown; ++ phy->phy.type = USB_PHY_TYPE_USB3; ++ ++ ret = usb_add_phy_dev(&phy->phy); ++ return ret; ++} ++ ++static struct platform_driver qca_uni_ss_driver = { ++ .probe = qca_uni_ss_probe, ++ .remove = qca_uni_ss_remove, ++ .driver = { ++ .name = "qca-uni-ssphy", ++ .owner = THIS_MODULE, ++ .of_match_table = qca_uni_ss_id_table, ++ }, ++}; ++ ++module_platform_driver(qca_uni_ss_driver); ++ ++MODULE_ALIAS("platform:qca-uni-ssphy"); ++MODULE_LICENSE("Dual BSD/GPL"); ++MODULE_DESCRIPTION("USB3 QCA UNI SSPHY driver"); |