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-rw-r--r--drivers/phy/realtek/Kconfig32
-rw-r--r--drivers/phy/realtek/Makefile3
-rw-r--r--drivers/phy/realtek/phy-rtk-usb2.c1312
-rw-r--r--drivers/phy/realtek/phy-rtk-usb3.c748
4 files changed, 2095 insertions, 0 deletions
diff --git a/drivers/phy/realtek/Kconfig b/drivers/phy/realtek/Kconfig
new file mode 100644
index 0000000000..75ac7e7c31
--- /dev/null
+++ b/drivers/phy/realtek/Kconfig
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Phy drivers for Realtek platforms
+#
+
+if ARCH_REALTEK || COMPILE_TEST
+
+config PHY_RTK_RTD_USB2PHY
+ tristate "Realtek RTD USB2 PHY Transceiver Driver"
+ depends on USB_SUPPORT
+ select GENERIC_PHY
+ select USB_PHY
+ select USB_COMMON
+ help
+ Enable this to support Realtek SoC USB2 phy transceiver.
+ The DHC (digital home center) RTD series SoCs used the Synopsys
+ DWC3 USB IP. This driver will do the PHY initialization
+ of the parameters.
+
+config PHY_RTK_RTD_USB3PHY
+ tristate "Realtek RTD USB3 PHY Transceiver Driver"
+ depends on USB_SUPPORT
+ select GENERIC_PHY
+ select USB_PHY
+ select USB_COMMON
+ help
+ Enable this to support Realtek SoC USB3 phy transceiver.
+ The DHC (digital home center) RTD series SoCs used the Synopsys
+ DWC3 USB IP. This driver will do the PHY initialization
+ of the parameters.
+
+endif # ARCH_REALTEK || COMPILE_TEST
diff --git a/drivers/phy/realtek/Makefile b/drivers/phy/realtek/Makefile
new file mode 100644
index 0000000000..ed7b47ff8a
--- /dev/null
+++ b/drivers/phy/realtek/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_PHY_RTK_RTD_USB2PHY) += phy-rtk-usb2.o
+obj-$(CONFIG_PHY_RTK_RTD_USB3PHY) += phy-rtk-usb3.o
diff --git a/drivers/phy/realtek/phy-rtk-usb2.c b/drivers/phy/realtek/phy-rtk-usb2.c
new file mode 100644
index 0000000000..e3ad7cea51
--- /dev/null
+++ b/drivers/phy/realtek/phy-rtk-usb2.c
@@ -0,0 +1,1312 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * phy-rtk-usb2.c RTK usb2.0 PHY driver
+ *
+ * Copyright (C) 2023 Realtek Semiconductor Corporation
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+#include <linux/uaccess.h>
+#include <linux/debugfs.h>
+#include <linux/nvmem-consumer.h>
+#include <linux/regmap.h>
+#include <linux/sys_soc.h>
+#include <linux/mfd/syscon.h>
+#include <linux/phy/phy.h>
+#include <linux/usb.h>
+
+/* GUSB2PHYACCn register */
+#define PHY_NEW_REG_REQ BIT(25)
+#define PHY_VSTS_BUSY BIT(23)
+#define PHY_VCTRL_SHIFT 8
+#define PHY_REG_DATA_MASK 0xff
+
+#define GET_LOW_NIBBLE(addr) ((addr) & 0x0f)
+#define GET_HIGH_NIBBLE(addr) (((addr) & 0xf0) >> 4)
+
+#define EFUS_USB_DC_CAL_RATE 2
+#define EFUS_USB_DC_CAL_MAX 7
+
+#define EFUS_USB_DC_DIS_RATE 1
+#define EFUS_USB_DC_DIS_MAX 7
+
+#define MAX_PHY_DATA_SIZE 20
+#define OFFEST_PHY_READ 0x20
+
+#define MAX_USB_PHY_NUM 4
+#define MAX_USB_PHY_PAGE0_DATA_SIZE 16
+#define MAX_USB_PHY_PAGE1_DATA_SIZE 16
+#define MAX_USB_PHY_PAGE2_DATA_SIZE 8
+
+#define SET_PAGE_OFFSET 0xf4
+#define SET_PAGE_0 0x9b
+#define SET_PAGE_1 0xbb
+#define SET_PAGE_2 0xdb
+
+#define PAGE_START 0xe0
+#define PAGE0_0XE4 0xe4
+#define PAGE0_0XE6 0xe6
+#define PAGE0_0XE7 0xe7
+#define PAGE1_0XE0 0xe0
+#define PAGE1_0XE2 0xe2
+
+#define SENSITIVITY_CTRL (BIT(4) | BIT(5) | BIT(6))
+#define ENABLE_AUTO_SENSITIVITY_CALIBRATION BIT(2)
+#define DEFAULT_DC_DRIVING_VALUE (0x8)
+#define DEFAULT_DC_DISCONNECTION_VALUE (0x6)
+#define HS_CLK_SELECT BIT(6)
+
+struct phy_reg {
+ void __iomem *reg_wrap_vstatus;
+ void __iomem *reg_gusb2phyacc0;
+ int vstatus_index;
+};
+
+struct phy_data {
+ u8 addr;
+ u8 data;
+};
+
+struct phy_cfg {
+ int page0_size;
+ struct phy_data page0[MAX_USB_PHY_PAGE0_DATA_SIZE];
+ int page1_size;
+ struct phy_data page1[MAX_USB_PHY_PAGE1_DATA_SIZE];
+ int page2_size;
+ struct phy_data page2[MAX_USB_PHY_PAGE2_DATA_SIZE];
+
+ int num_phy;
+
+ bool check_efuse;
+ int check_efuse_version;
+#define CHECK_EFUSE_V1 1
+#define CHECK_EFUSE_V2 2
+ int efuse_dc_driving_rate;
+ int efuse_dc_disconnect_rate;
+ int dc_driving_mask;
+ int dc_disconnect_mask;
+ bool usb_dc_disconnect_at_page0;
+ int driving_updated_for_dev_dis;
+
+ bool do_toggle;
+ bool do_toggle_driving;
+ bool use_default_parameter;
+ bool is_double_sensitivity_mode;
+};
+
+struct phy_parameter {
+ struct phy_reg phy_reg;
+
+ /* Get from efuse */
+ s8 efuse_usb_dc_cal;
+ s8 efuse_usb_dc_dis;
+
+ /* Get from dts */
+ bool inverse_hstx_sync_clock;
+ u32 driving_level;
+ s32 driving_level_compensate;
+ s32 disconnection_compensate;
+};
+
+struct rtk_phy {
+ struct device *dev;
+
+ struct phy_cfg *phy_cfg;
+ int num_phy;
+ struct phy_parameter *phy_parameter;
+
+ struct dentry *debug_dir;
+};
+
+/* mapping 0xE0 to 0 ... 0xE7 to 7, 0xF0 to 8 ,,, 0xF7 to 15 */
+static inline int page_addr_to_array_index(u8 addr)
+{
+ return (int)((((addr) - PAGE_START) & 0x7) +
+ ((((addr) - PAGE_START) & 0x10) >> 1));
+}
+
+static inline u8 array_index_to_page_addr(int index)
+{
+ return ((((index) + PAGE_START) & 0x7) +
+ ((((index) & 0x8) << 1) + PAGE_START));
+}
+
+#define PHY_IO_TIMEOUT_USEC (50000)
+#define PHY_IO_DELAY_US (100)
+
+static inline int utmi_wait_register(void __iomem *reg, u32 mask, u32 result)
+{
+ int ret;
+ unsigned int val;
+
+ ret = read_poll_timeout(readl, val, ((val & mask) == result),
+ PHY_IO_DELAY_US, PHY_IO_TIMEOUT_USEC, false, reg);
+ if (ret) {
+ pr_err("%s can't program USB phy\n", __func__);
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+static char rtk_phy_read(struct phy_reg *phy_reg, char addr)
+{
+ void __iomem *reg_gusb2phyacc0 = phy_reg->reg_gusb2phyacc0;
+ unsigned int val;
+ int ret = 0;
+
+ addr -= OFFEST_PHY_READ;
+
+ /* polling until VBusy == 0 */
+ ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+ if (ret)
+ return (char)ret;
+
+ /* VCtrl = low nibble of addr, and set PHY_NEW_REG_REQ */
+ val = PHY_NEW_REG_REQ | (GET_LOW_NIBBLE(addr) << PHY_VCTRL_SHIFT);
+ writel(val, reg_gusb2phyacc0);
+ ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+ if (ret)
+ return (char)ret;
+
+ /* VCtrl = high nibble of addr, and set PHY_NEW_REG_REQ */
+ val = PHY_NEW_REG_REQ | (GET_HIGH_NIBBLE(addr) << PHY_VCTRL_SHIFT);
+ writel(val, reg_gusb2phyacc0);
+ ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+ if (ret)
+ return (char)ret;
+
+ val = readl(reg_gusb2phyacc0);
+
+ return (char)(val & PHY_REG_DATA_MASK);
+}
+
+static int rtk_phy_write(struct phy_reg *phy_reg, char addr, char data)
+{
+ unsigned int val;
+ void __iomem *reg_wrap_vstatus = phy_reg->reg_wrap_vstatus;
+ void __iomem *reg_gusb2phyacc0 = phy_reg->reg_gusb2phyacc0;
+ int shift_bits = phy_reg->vstatus_index * 8;
+ int ret = 0;
+
+ /* write data to VStatusOut2 (data output to phy) */
+ writel((u32)data << shift_bits, reg_wrap_vstatus);
+
+ ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+ if (ret)
+ return ret;
+
+ /* VCtrl = low nibble of addr, set PHY_NEW_REG_REQ */
+ val = PHY_NEW_REG_REQ | (GET_LOW_NIBBLE(addr) << PHY_VCTRL_SHIFT);
+
+ writel(val, reg_gusb2phyacc0);
+ ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+ if (ret)
+ return ret;
+
+ /* VCtrl = high nibble of addr, set PHY_NEW_REG_REQ */
+ val = PHY_NEW_REG_REQ | (GET_HIGH_NIBBLE(addr) << PHY_VCTRL_SHIFT);
+
+ writel(val, reg_gusb2phyacc0);
+ ret = utmi_wait_register(reg_gusb2phyacc0, PHY_VSTS_BUSY, 0);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int rtk_phy_set_page(struct phy_reg *phy_reg, int page)
+{
+ switch (page) {
+ case 0:
+ return rtk_phy_write(phy_reg, SET_PAGE_OFFSET, SET_PAGE_0);
+ case 1:
+ return rtk_phy_write(phy_reg, SET_PAGE_OFFSET, SET_PAGE_1);
+ case 2:
+ return rtk_phy_write(phy_reg, SET_PAGE_OFFSET, SET_PAGE_2);
+ default:
+ pr_err("%s error page=%d\n", __func__, page);
+ }
+
+ return -EINVAL;
+}
+
+static u8 __updated_dc_disconnect_level_page0_0xe4(struct phy_cfg *phy_cfg,
+ struct phy_parameter *phy_parameter, u8 data)
+{
+ u8 ret;
+ s32 val;
+ s32 dc_disconnect_mask = phy_cfg->dc_disconnect_mask;
+ int offset = 4;
+
+ val = (s32)((data >> offset) & dc_disconnect_mask)
+ + phy_parameter->efuse_usb_dc_dis
+ + phy_parameter->disconnection_compensate;
+
+ if (val > dc_disconnect_mask)
+ val = dc_disconnect_mask;
+ else if (val < 0)
+ val = 0;
+
+ ret = (data & (~(dc_disconnect_mask << offset))) |
+ (val & dc_disconnect_mask) << offset;
+
+ return ret;
+}
+
+/* updated disconnect level at page0 */
+static void update_dc_disconnect_level_at_page0(struct rtk_phy *rtk_phy,
+ struct phy_parameter *phy_parameter, bool update)
+{
+ struct phy_cfg *phy_cfg;
+ struct phy_reg *phy_reg;
+ struct phy_data *phy_data_page;
+ struct phy_data *phy_data;
+ u8 addr, data;
+ int offset = 4;
+ s32 dc_disconnect_mask;
+ int i;
+
+ phy_cfg = rtk_phy->phy_cfg;
+ phy_reg = &phy_parameter->phy_reg;
+
+ /* Set page 0 */
+ phy_data_page = phy_cfg->page0;
+ rtk_phy_set_page(phy_reg, 0);
+
+ i = page_addr_to_array_index(PAGE0_0XE4);
+ phy_data = phy_data_page + i;
+ if (!phy_data->addr) {
+ phy_data->addr = PAGE0_0XE4;
+ phy_data->data = rtk_phy_read(phy_reg, PAGE0_0XE4);
+ }
+
+ addr = phy_data->addr;
+ data = phy_data->data;
+ dc_disconnect_mask = phy_cfg->dc_disconnect_mask;
+
+ if (update)
+ data = __updated_dc_disconnect_level_page0_0xe4(phy_cfg, phy_parameter, data);
+ else
+ data = (data & ~(dc_disconnect_mask << offset)) |
+ (DEFAULT_DC_DISCONNECTION_VALUE << offset);
+
+ if (rtk_phy_write(phy_reg, addr, data))
+ dev_err(rtk_phy->dev,
+ "%s: Error to set page1 parameter addr=0x%x value=0x%x\n",
+ __func__, addr, data);
+}
+
+static u8 __updated_dc_disconnect_level_page1_0xe2(struct phy_cfg *phy_cfg,
+ struct phy_parameter *phy_parameter, u8 data)
+{
+ u8 ret;
+ s32 val;
+ s32 dc_disconnect_mask = phy_cfg->dc_disconnect_mask;
+
+ if (phy_cfg->check_efuse_version == CHECK_EFUSE_V1) {
+ val = (s32)(data & dc_disconnect_mask)
+ + phy_parameter->efuse_usb_dc_dis
+ + phy_parameter->disconnection_compensate;
+ } else { /* for CHECK_EFUSE_V2 or no efuse */
+ if (phy_parameter->efuse_usb_dc_dis)
+ val = (s32)(phy_parameter->efuse_usb_dc_dis +
+ phy_parameter->disconnection_compensate);
+ else
+ val = (s32)((data & dc_disconnect_mask) +
+ phy_parameter->disconnection_compensate);
+ }
+
+ if (val > dc_disconnect_mask)
+ val = dc_disconnect_mask;
+ else if (val < 0)
+ val = 0;
+
+ ret = (data & (~dc_disconnect_mask)) | (val & dc_disconnect_mask);
+
+ return ret;
+}
+
+/* updated disconnect level at page1 */
+static void update_dc_disconnect_level_at_page1(struct rtk_phy *rtk_phy,
+ struct phy_parameter *phy_parameter, bool update)
+{
+ struct phy_cfg *phy_cfg;
+ struct phy_data *phy_data_page;
+ struct phy_data *phy_data;
+ struct phy_reg *phy_reg;
+ u8 addr, data;
+ s32 dc_disconnect_mask;
+ int i;
+
+ phy_cfg = rtk_phy->phy_cfg;
+ phy_reg = &phy_parameter->phy_reg;
+
+ /* Set page 1 */
+ phy_data_page = phy_cfg->page1;
+ rtk_phy_set_page(phy_reg, 1);
+
+ i = page_addr_to_array_index(PAGE1_0XE2);
+ phy_data = phy_data_page + i;
+ if (!phy_data->addr) {
+ phy_data->addr = PAGE1_0XE2;
+ phy_data->data = rtk_phy_read(phy_reg, PAGE1_0XE2);
+ }
+
+ addr = phy_data->addr;
+ data = phy_data->data;
+ dc_disconnect_mask = phy_cfg->dc_disconnect_mask;
+
+ if (update)
+ data = __updated_dc_disconnect_level_page1_0xe2(phy_cfg, phy_parameter, data);
+ else
+ data = (data & ~dc_disconnect_mask) | DEFAULT_DC_DISCONNECTION_VALUE;
+
+ if (rtk_phy_write(phy_reg, addr, data))
+ dev_err(rtk_phy->dev,
+ "%s: Error to set page1 parameter addr=0x%x value=0x%x\n",
+ __func__, addr, data);
+}
+
+static void update_dc_disconnect_level(struct rtk_phy *rtk_phy,
+ struct phy_parameter *phy_parameter, bool update)
+{
+ struct phy_cfg *phy_cfg = rtk_phy->phy_cfg;
+
+ if (phy_cfg->usb_dc_disconnect_at_page0)
+ update_dc_disconnect_level_at_page0(rtk_phy, phy_parameter, update);
+ else
+ update_dc_disconnect_level_at_page1(rtk_phy, phy_parameter, update);
+}
+
+static u8 __update_dc_driving_page0_0xe4(struct phy_cfg *phy_cfg,
+ struct phy_parameter *phy_parameter, u8 data)
+{
+ s32 driving_level_compensate = phy_parameter->driving_level_compensate;
+ s32 dc_driving_mask = phy_cfg->dc_driving_mask;
+ s32 val;
+ u8 ret;
+
+ if (phy_cfg->check_efuse_version == CHECK_EFUSE_V1) {
+ val = (s32)(data & dc_driving_mask) + driving_level_compensate
+ + phy_parameter->efuse_usb_dc_cal;
+ } else { /* for CHECK_EFUSE_V2 or no efuse */
+ if (phy_parameter->efuse_usb_dc_cal)
+ val = (s32)((phy_parameter->efuse_usb_dc_cal & dc_driving_mask)
+ + driving_level_compensate);
+ else
+ val = (s32)(data & dc_driving_mask);
+ }
+
+ if (val > dc_driving_mask)
+ val = dc_driving_mask;
+ else if (val < 0)
+ val = 0;
+
+ ret = (data & (~dc_driving_mask)) | (val & dc_driving_mask);
+
+ return ret;
+}
+
+static void update_dc_driving_level(struct rtk_phy *rtk_phy,
+ struct phy_parameter *phy_parameter)
+{
+ struct phy_cfg *phy_cfg;
+ struct phy_reg *phy_reg;
+
+ phy_reg = &phy_parameter->phy_reg;
+ phy_cfg = rtk_phy->phy_cfg;
+ if (!phy_cfg->page0[4].addr) {
+ rtk_phy_set_page(phy_reg, 0);
+ phy_cfg->page0[4].addr = PAGE0_0XE4;
+ phy_cfg->page0[4].data = rtk_phy_read(phy_reg, PAGE0_0XE4);
+ }
+
+ if (phy_parameter->driving_level != DEFAULT_DC_DRIVING_VALUE) {
+ u32 dc_driving_mask;
+ u8 driving_level;
+ u8 data;
+
+ data = phy_cfg->page0[4].data;
+ dc_driving_mask = phy_cfg->dc_driving_mask;
+ driving_level = data & dc_driving_mask;
+
+ dev_dbg(rtk_phy->dev, "%s driving_level=%d => dts driving_level=%d\n",
+ __func__, driving_level, phy_parameter->driving_level);
+
+ phy_cfg->page0[4].data = (data & (~dc_driving_mask)) |
+ (phy_parameter->driving_level & dc_driving_mask);
+ }
+
+ phy_cfg->page0[4].data = __update_dc_driving_page0_0xe4(phy_cfg,
+ phy_parameter,
+ phy_cfg->page0[4].data);
+}
+
+static void update_hs_clk_select(struct rtk_phy *rtk_phy,
+ struct phy_parameter *phy_parameter)
+{
+ struct phy_cfg *phy_cfg;
+ struct phy_reg *phy_reg;
+
+ phy_cfg = rtk_phy->phy_cfg;
+ phy_reg = &phy_parameter->phy_reg;
+
+ if (phy_parameter->inverse_hstx_sync_clock) {
+ if (!phy_cfg->page0[6].addr) {
+ rtk_phy_set_page(phy_reg, 0);
+ phy_cfg->page0[6].addr = PAGE0_0XE6;
+ phy_cfg->page0[6].data = rtk_phy_read(phy_reg, PAGE0_0XE6);
+ }
+
+ phy_cfg->page0[6].data = phy_cfg->page0[6].data | HS_CLK_SELECT;
+ }
+}
+
+static void do_rtk_phy_toggle(struct rtk_phy *rtk_phy,
+ int index, bool connect)
+{
+ struct phy_parameter *phy_parameter;
+ struct phy_cfg *phy_cfg;
+ struct phy_reg *phy_reg;
+ struct phy_data *phy_data_page;
+ u8 addr, data;
+ int i;
+
+ phy_cfg = rtk_phy->phy_cfg;
+ phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+ phy_reg = &phy_parameter->phy_reg;
+
+ if (!phy_cfg->do_toggle)
+ goto out;
+
+ if (phy_cfg->is_double_sensitivity_mode)
+ goto do_toggle_driving;
+
+ /* Set page 0 */
+ rtk_phy_set_page(phy_reg, 0);
+
+ addr = PAGE0_0XE7;
+ data = rtk_phy_read(phy_reg, addr);
+
+ if (connect)
+ rtk_phy_write(phy_reg, addr, data & (~SENSITIVITY_CTRL));
+ else
+ rtk_phy_write(phy_reg, addr, data | (SENSITIVITY_CTRL));
+
+do_toggle_driving:
+
+ if (!phy_cfg->do_toggle_driving)
+ goto do_toggle;
+
+ /* Page 0 addr 0xE4 driving capability */
+
+ /* Set page 0 */
+ phy_data_page = phy_cfg->page0;
+ rtk_phy_set_page(phy_reg, 0);
+
+ i = page_addr_to_array_index(PAGE0_0XE4);
+ addr = phy_data_page[i].addr;
+ data = phy_data_page[i].data;
+
+ if (connect) {
+ rtk_phy_write(phy_reg, addr, data);
+ } else {
+ u8 value;
+ s32 tmp;
+ s32 driving_updated =
+ phy_cfg->driving_updated_for_dev_dis;
+ s32 dc_driving_mask = phy_cfg->dc_driving_mask;
+
+ tmp = (s32)(data & dc_driving_mask) + driving_updated;
+
+ if (tmp > dc_driving_mask)
+ tmp = dc_driving_mask;
+ else if (tmp < 0)
+ tmp = 0;
+
+ value = (data & (~dc_driving_mask)) | (tmp & dc_driving_mask);
+
+ rtk_phy_write(phy_reg, addr, value);
+ }
+
+do_toggle:
+ /* restore dc disconnect level before toggle */
+ update_dc_disconnect_level(rtk_phy, phy_parameter, false);
+
+ /* Set page 1 */
+ rtk_phy_set_page(phy_reg, 1);
+
+ addr = PAGE1_0XE0;
+ data = rtk_phy_read(phy_reg, addr);
+
+ rtk_phy_write(phy_reg, addr, data &
+ (~ENABLE_AUTO_SENSITIVITY_CALIBRATION));
+ mdelay(1);
+ rtk_phy_write(phy_reg, addr, data |
+ (ENABLE_AUTO_SENSITIVITY_CALIBRATION));
+
+ /* update dc disconnect level after toggle */
+ update_dc_disconnect_level(rtk_phy, phy_parameter, true);
+
+out:
+ return;
+}
+
+static int do_rtk_phy_init(struct rtk_phy *rtk_phy, int index)
+{
+ struct phy_parameter *phy_parameter;
+ struct phy_cfg *phy_cfg;
+ struct phy_data *phy_data_page;
+ struct phy_reg *phy_reg;
+ int i;
+
+ phy_cfg = rtk_phy->phy_cfg;
+ phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+ phy_reg = &phy_parameter->phy_reg;
+
+ if (phy_cfg->use_default_parameter) {
+ dev_dbg(rtk_phy->dev, "%s phy#%d use default parameter\n",
+ __func__, index);
+ goto do_toggle;
+ }
+
+ /* Set page 0 */
+ phy_data_page = phy_cfg->page0;
+ rtk_phy_set_page(phy_reg, 0);
+
+ for (i = 0; i < phy_cfg->page0_size; i++) {
+ struct phy_data *phy_data = phy_data_page + i;
+ u8 addr = phy_data->addr;
+ u8 data = phy_data->data;
+
+ if (!addr)
+ continue;
+
+ if (rtk_phy_write(phy_reg, addr, data)) {
+ dev_err(rtk_phy->dev,
+ "%s: Error to set page0 parameter addr=0x%x value=0x%x\n",
+ __func__, addr, data);
+ return -EINVAL;
+ }
+ }
+
+ /* Set page 1 */
+ phy_data_page = phy_cfg->page1;
+ rtk_phy_set_page(phy_reg, 1);
+
+ for (i = 0; i < phy_cfg->page1_size; i++) {
+ struct phy_data *phy_data = phy_data_page + i;
+ u8 addr = phy_data->addr;
+ u8 data = phy_data->data;
+
+ if (!addr)
+ continue;
+
+ if (rtk_phy_write(phy_reg, addr, data)) {
+ dev_err(rtk_phy->dev,
+ "%s: Error to set page1 parameter addr=0x%x value=0x%x\n",
+ __func__, addr, data);
+ return -EINVAL;
+ }
+ }
+
+ if (phy_cfg->page2_size == 0)
+ goto do_toggle;
+
+ /* Set page 2 */
+ phy_data_page = phy_cfg->page2;
+ rtk_phy_set_page(phy_reg, 2);
+
+ for (i = 0; i < phy_cfg->page2_size; i++) {
+ struct phy_data *phy_data = phy_data_page + i;
+ u8 addr = phy_data->addr;
+ u8 data = phy_data->data;
+
+ if (!addr)
+ continue;
+
+ if (rtk_phy_write(phy_reg, addr, data)) {
+ dev_err(rtk_phy->dev,
+ "%s: Error to set page2 parameter addr=0x%x value=0x%x\n",
+ __func__, addr, data);
+ return -EINVAL;
+ }
+ }
+
+do_toggle:
+ do_rtk_phy_toggle(rtk_phy, index, false);
+
+ return 0;
+}
+
+static int rtk_phy_init(struct phy *phy)
+{
+ struct rtk_phy *rtk_phy = phy_get_drvdata(phy);
+ unsigned long phy_init_time = jiffies;
+ int i, ret = 0;
+
+ if (!rtk_phy)
+ return -EINVAL;
+
+ for (i = 0; i < rtk_phy->num_phy; i++)
+ ret = do_rtk_phy_init(rtk_phy, i);
+
+ dev_dbg(rtk_phy->dev, "Initialized RTK USB 2.0 PHY (take %dms)\n",
+ jiffies_to_msecs(jiffies - phy_init_time));
+ return ret;
+}
+
+static int rtk_phy_exit(struct phy *phy)
+{
+ return 0;
+}
+
+static void rtk_phy_toggle(struct rtk_phy *rtk_phy, bool connect, int port)
+{
+ int index = port;
+
+ if (index > rtk_phy->num_phy) {
+ dev_err(rtk_phy->dev, "%s: The port=%d is not in usb phy (num_phy=%d)\n",
+ __func__, index, rtk_phy->num_phy);
+ return;
+ }
+
+ do_rtk_phy_toggle(rtk_phy, index, connect);
+}
+
+static int rtk_phy_connect(struct phy *phy, int port)
+{
+ struct rtk_phy *rtk_phy = phy_get_drvdata(phy);
+
+ dev_dbg(rtk_phy->dev, "%s port=%d\n", __func__, port);
+ rtk_phy_toggle(rtk_phy, true, port);
+
+ return 0;
+}
+
+static int rtk_phy_disconnect(struct phy *phy, int port)
+{
+ struct rtk_phy *rtk_phy = phy_get_drvdata(phy);
+
+ dev_dbg(rtk_phy->dev, "%s port=%d\n", __func__, port);
+ rtk_phy_toggle(rtk_phy, false, port);
+
+ return 0;
+}
+
+static const struct phy_ops ops = {
+ .init = rtk_phy_init,
+ .exit = rtk_phy_exit,
+ .connect = rtk_phy_connect,
+ .disconnect = rtk_phy_disconnect,
+ .owner = THIS_MODULE,
+};
+
+#ifdef CONFIG_DEBUG_FS
+static struct dentry *create_phy_debug_root(void)
+{
+ struct dentry *phy_debug_root;
+
+ phy_debug_root = debugfs_lookup("phy", usb_debug_root);
+ if (!phy_debug_root)
+ phy_debug_root = debugfs_create_dir("phy", usb_debug_root);
+
+ return phy_debug_root;
+}
+
+static int rtk_usb2_parameter_show(struct seq_file *s, void *unused)
+{
+ struct rtk_phy *rtk_phy = s->private;
+ struct phy_cfg *phy_cfg;
+ int i, index;
+
+ phy_cfg = rtk_phy->phy_cfg;
+
+ seq_puts(s, "Property:\n");
+ seq_printf(s, " check_efuse: %s\n",
+ phy_cfg->check_efuse ? "Enable" : "Disable");
+ seq_printf(s, " check_efuse_version: %d\n",
+ phy_cfg->check_efuse_version);
+ seq_printf(s, " efuse_dc_driving_rate: %d\n",
+ phy_cfg->efuse_dc_driving_rate);
+ seq_printf(s, " dc_driving_mask: 0x%x\n",
+ phy_cfg->dc_driving_mask);
+ seq_printf(s, " efuse_dc_disconnect_rate: %d\n",
+ phy_cfg->efuse_dc_disconnect_rate);
+ seq_printf(s, " dc_disconnect_mask: 0x%x\n",
+ phy_cfg->dc_disconnect_mask);
+ seq_printf(s, " usb_dc_disconnect_at_page0: %s\n",
+ phy_cfg->usb_dc_disconnect_at_page0 ? "true" : "false");
+ seq_printf(s, " do_toggle: %s\n",
+ phy_cfg->do_toggle ? "Enable" : "Disable");
+ seq_printf(s, " do_toggle_driving: %s\n",
+ phy_cfg->do_toggle_driving ? "Enable" : "Disable");
+ seq_printf(s, " driving_updated_for_dev_dis: 0x%x\n",
+ phy_cfg->driving_updated_for_dev_dis);
+ seq_printf(s, " use_default_parameter: %s\n",
+ phy_cfg->use_default_parameter ? "Enable" : "Disable");
+ seq_printf(s, " is_double_sensitivity_mode: %s\n",
+ phy_cfg->is_double_sensitivity_mode ? "Enable" : "Disable");
+
+ for (index = 0; index < rtk_phy->num_phy; index++) {
+ struct phy_parameter *phy_parameter;
+ struct phy_reg *phy_reg;
+ struct phy_data *phy_data_page;
+
+ phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+ phy_reg = &phy_parameter->phy_reg;
+
+ seq_printf(s, "PHY %d:\n", index);
+
+ seq_puts(s, "Page 0:\n");
+ /* Set page 0 */
+ phy_data_page = phy_cfg->page0;
+ rtk_phy_set_page(phy_reg, 0);
+
+ for (i = 0; i < phy_cfg->page0_size; i++) {
+ struct phy_data *phy_data = phy_data_page + i;
+ u8 addr = array_index_to_page_addr(i);
+ u8 data = phy_data->data;
+ u8 value = rtk_phy_read(phy_reg, addr);
+
+ if (phy_data->addr)
+ seq_printf(s, " Page 0: addr=0x%x data=0x%02x ==> read value=0x%02x\n",
+ addr, data, value);
+ else
+ seq_printf(s, " Page 0: addr=0x%x data=none ==> read value=0x%02x\n",
+ addr, value);
+ }
+
+ seq_puts(s, "Page 1:\n");
+ /* Set page 1 */
+ phy_data_page = phy_cfg->page1;
+ rtk_phy_set_page(phy_reg, 1);
+
+ for (i = 0; i < phy_cfg->page1_size; i++) {
+ struct phy_data *phy_data = phy_data_page + i;
+ u8 addr = array_index_to_page_addr(i);
+ u8 data = phy_data->data;
+ u8 value = rtk_phy_read(phy_reg, addr);
+
+ if (phy_data->addr)
+ seq_printf(s, " Page 1: addr=0x%x data=0x%02x ==> read value=0x%02x\n",
+ addr, data, value);
+ else
+ seq_printf(s, " Page 1: addr=0x%x data=none ==> read value=0x%02x\n",
+ addr, value);
+ }
+
+ if (phy_cfg->page2_size == 0)
+ goto out;
+
+ seq_puts(s, "Page 2:\n");
+ /* Set page 2 */
+ phy_data_page = phy_cfg->page2;
+ rtk_phy_set_page(phy_reg, 2);
+
+ for (i = 0; i < phy_cfg->page2_size; i++) {
+ struct phy_data *phy_data = phy_data_page + i;
+ u8 addr = array_index_to_page_addr(i);
+ u8 data = phy_data->data;
+ u8 value = rtk_phy_read(phy_reg, addr);
+
+ if (phy_data->addr)
+ seq_printf(s, " Page 2: addr=0x%x data=0x%02x ==> read value=0x%02x\n",
+ addr, data, value);
+ else
+ seq_printf(s, " Page 2: addr=0x%x data=none ==> read value=0x%02x\n",
+ addr, value);
+ }
+
+out:
+ seq_puts(s, "PHY Property:\n");
+ seq_printf(s, " efuse_usb_dc_cal: %d\n",
+ (int)phy_parameter->efuse_usb_dc_cal);
+ seq_printf(s, " efuse_usb_dc_dis: %d\n",
+ (int)phy_parameter->efuse_usb_dc_dis);
+ seq_printf(s, " inverse_hstx_sync_clock: %s\n",
+ phy_parameter->inverse_hstx_sync_clock ? "Enable" : "Disable");
+ seq_printf(s, " driving_level: %d\n",
+ phy_parameter->driving_level);
+ seq_printf(s, " driving_level_compensate: %d\n",
+ phy_parameter->driving_level_compensate);
+ seq_printf(s, " disconnection_compensate: %d\n",
+ phy_parameter->disconnection_compensate);
+ }
+
+ return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(rtk_usb2_parameter);
+
+static inline void create_debug_files(struct rtk_phy *rtk_phy)
+{
+ struct dentry *phy_debug_root = NULL;
+
+ phy_debug_root = create_phy_debug_root();
+ if (!phy_debug_root)
+ return;
+
+ rtk_phy->debug_dir = debugfs_create_dir(dev_name(rtk_phy->dev),
+ phy_debug_root);
+
+ debugfs_create_file("parameter", 0444, rtk_phy->debug_dir, rtk_phy,
+ &rtk_usb2_parameter_fops);
+}
+
+static inline void remove_debug_files(struct rtk_phy *rtk_phy)
+{
+ debugfs_remove_recursive(rtk_phy->debug_dir);
+}
+#else
+static inline void create_debug_files(struct rtk_phy *rtk_phy) { }
+static inline void remove_debug_files(struct rtk_phy *rtk_phy) { }
+#endif /* CONFIG_DEBUG_FS */
+
+static int get_phy_data_by_efuse(struct rtk_phy *rtk_phy,
+ struct phy_parameter *phy_parameter, int index)
+{
+ struct phy_cfg *phy_cfg = rtk_phy->phy_cfg;
+ u8 value = 0;
+ struct nvmem_cell *cell;
+ struct soc_device_attribute rtk_soc_groot[] = {
+ { .family = "Realtek Groot",},
+ { /* empty */ } };
+
+ if (!phy_cfg->check_efuse)
+ goto out;
+
+ /* Read efuse for usb dc cal */
+ cell = nvmem_cell_get(rtk_phy->dev, "usb-dc-cal");
+ if (IS_ERR(cell)) {
+ dev_dbg(rtk_phy->dev, "%s no usb-dc-cal: %ld\n",
+ __func__, PTR_ERR(cell));
+ } else {
+ unsigned char *buf;
+ size_t buf_size;
+
+ buf = nvmem_cell_read(cell, &buf_size);
+ if (!IS_ERR(buf)) {
+ value = buf[0] & phy_cfg->dc_driving_mask;
+ kfree(buf);
+ }
+ nvmem_cell_put(cell);
+ }
+
+ if (phy_cfg->check_efuse_version == CHECK_EFUSE_V1) {
+ int rate = phy_cfg->efuse_dc_driving_rate;
+
+ if (value <= EFUS_USB_DC_CAL_MAX)
+ phy_parameter->efuse_usb_dc_cal = (int8_t)(value * rate);
+ else
+ phy_parameter->efuse_usb_dc_cal = -(int8_t)
+ ((EFUS_USB_DC_CAL_MAX & value) * rate);
+
+ if (soc_device_match(rtk_soc_groot)) {
+ dev_dbg(rtk_phy->dev, "For groot IC we need a workaround to adjust efuse_usb_dc_cal\n");
+
+ /* We don't multiple dc_cal_rate=2 for positive dc cal compensate */
+ if (value <= EFUS_USB_DC_CAL_MAX)
+ phy_parameter->efuse_usb_dc_cal = (int8_t)(value);
+
+ /* We set max dc cal compensate is 0x8 if otp is 0x7 */
+ if (value == 0x7)
+ phy_parameter->efuse_usb_dc_cal = (int8_t)(value + 1);
+ }
+ } else { /* for CHECK_EFUSE_V2 */
+ phy_parameter->efuse_usb_dc_cal = value & phy_cfg->dc_driving_mask;
+ }
+
+ /* Read efuse for usb dc disconnect level */
+ value = 0;
+ cell = nvmem_cell_get(rtk_phy->dev, "usb-dc-dis");
+ if (IS_ERR(cell)) {
+ dev_dbg(rtk_phy->dev, "%s no usb-dc-dis: %ld\n",
+ __func__, PTR_ERR(cell));
+ } else {
+ unsigned char *buf;
+ size_t buf_size;
+
+ buf = nvmem_cell_read(cell, &buf_size);
+ if (!IS_ERR(buf)) {
+ value = buf[0] & phy_cfg->dc_disconnect_mask;
+ kfree(buf);
+ }
+ nvmem_cell_put(cell);
+ }
+
+ if (phy_cfg->check_efuse_version == CHECK_EFUSE_V1) {
+ int rate = phy_cfg->efuse_dc_disconnect_rate;
+
+ if (value <= EFUS_USB_DC_DIS_MAX)
+ phy_parameter->efuse_usb_dc_dis = (int8_t)(value * rate);
+ else
+ phy_parameter->efuse_usb_dc_dis = -(int8_t)
+ ((EFUS_USB_DC_DIS_MAX & value) * rate);
+ } else { /* for CHECK_EFUSE_V2 */
+ phy_parameter->efuse_usb_dc_dis = value & phy_cfg->dc_disconnect_mask;
+ }
+
+out:
+ return 0;
+}
+
+static int parse_phy_data(struct rtk_phy *rtk_phy)
+{
+ struct device *dev = rtk_phy->dev;
+ struct device_node *np = dev->of_node;
+ struct phy_parameter *phy_parameter;
+ int ret = 0;
+ int index;
+
+ rtk_phy->phy_parameter = devm_kzalloc(dev, sizeof(struct phy_parameter) *
+ rtk_phy->num_phy, GFP_KERNEL);
+ if (!rtk_phy->phy_parameter)
+ return -ENOMEM;
+
+ for (index = 0; index < rtk_phy->num_phy; index++) {
+ phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+
+ phy_parameter->phy_reg.reg_wrap_vstatus = of_iomap(np, 0);
+ phy_parameter->phy_reg.reg_gusb2phyacc0 = of_iomap(np, 1) + index;
+ phy_parameter->phy_reg.vstatus_index = index;
+
+ if (of_property_read_bool(np, "realtek,inverse-hstx-sync-clock"))
+ phy_parameter->inverse_hstx_sync_clock = true;
+ else
+ phy_parameter->inverse_hstx_sync_clock = false;
+
+ if (of_property_read_u32_index(np, "realtek,driving-level",
+ index, &phy_parameter->driving_level))
+ phy_parameter->driving_level = DEFAULT_DC_DRIVING_VALUE;
+
+ if (of_property_read_u32_index(np, "realtek,driving-level-compensate",
+ index, &phy_parameter->driving_level_compensate))
+ phy_parameter->driving_level_compensate = 0;
+
+ if (of_property_read_u32_index(np, "realtek,disconnection-compensate",
+ index, &phy_parameter->disconnection_compensate))
+ phy_parameter->disconnection_compensate = 0;
+
+ get_phy_data_by_efuse(rtk_phy, phy_parameter, index);
+
+ update_dc_driving_level(rtk_phy, phy_parameter);
+
+ update_hs_clk_select(rtk_phy, phy_parameter);
+ }
+
+ return ret;
+}
+
+static int rtk_usb2phy_probe(struct platform_device *pdev)
+{
+ struct rtk_phy *rtk_phy;
+ struct device *dev = &pdev->dev;
+ struct phy *generic_phy;
+ struct phy_provider *phy_provider;
+ const struct phy_cfg *phy_cfg;
+ int ret = 0;
+
+ phy_cfg = of_device_get_match_data(dev);
+ if (!phy_cfg) {
+ dev_err(dev, "phy config are not assigned!\n");
+ return -EINVAL;
+ }
+
+ rtk_phy = devm_kzalloc(dev, sizeof(*rtk_phy), GFP_KERNEL);
+ if (!rtk_phy)
+ return -ENOMEM;
+
+ rtk_phy->dev = &pdev->dev;
+ rtk_phy->phy_cfg = devm_kzalloc(dev, sizeof(*phy_cfg), GFP_KERNEL);
+
+ memcpy(rtk_phy->phy_cfg, phy_cfg, sizeof(*phy_cfg));
+
+ rtk_phy->num_phy = phy_cfg->num_phy;
+
+ ret = parse_phy_data(rtk_phy);
+ if (ret)
+ goto err;
+
+ platform_set_drvdata(pdev, rtk_phy);
+
+ generic_phy = devm_phy_create(rtk_phy->dev, NULL, &ops);
+ if (IS_ERR(generic_phy))
+ return PTR_ERR(generic_phy);
+
+ phy_set_drvdata(generic_phy, rtk_phy);
+
+ phy_provider = devm_of_phy_provider_register(rtk_phy->dev,
+ of_phy_simple_xlate);
+ if (IS_ERR(phy_provider))
+ return PTR_ERR(phy_provider);
+
+ create_debug_files(rtk_phy);
+
+err:
+ return ret;
+}
+
+static void rtk_usb2phy_remove(struct platform_device *pdev)
+{
+ struct rtk_phy *rtk_phy = platform_get_drvdata(pdev);
+
+ remove_debug_files(rtk_phy);
+}
+
+static const struct phy_cfg rtd1295_phy_cfg = {
+ .page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+ .page0 = { [0] = {0xe0, 0x90},
+ [3] = {0xe3, 0x3a},
+ [4] = {0xe4, 0x68},
+ [6] = {0xe6, 0x91},
+ [13] = {0xf5, 0x81},
+ [15] = {0xf7, 0x02}, },
+ .page1_size = 8,
+ .page1 = { /* default parameter */ },
+ .page2_size = 0,
+ .page2 = { /* no parameter */ },
+ .num_phy = 1,
+ .check_efuse = false,
+ .check_efuse_version = CHECK_EFUSE_V1,
+ .efuse_dc_driving_rate = 1,
+ .dc_driving_mask = 0xf,
+ .efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+ .dc_disconnect_mask = 0xf,
+ .usb_dc_disconnect_at_page0 = true,
+ .do_toggle = true,
+ .do_toggle_driving = false,
+ .driving_updated_for_dev_dis = 0xf,
+ .use_default_parameter = false,
+ .is_double_sensitivity_mode = false,
+};
+
+static const struct phy_cfg rtd1395_phy_cfg = {
+ .page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+ .page0 = { [4] = {0xe4, 0xac},
+ [13] = {0xf5, 0x00},
+ [15] = {0xf7, 0x02}, },
+ .page1_size = 8,
+ .page1 = { /* default parameter */ },
+ .page2_size = 0,
+ .page2 = { /* no parameter */ },
+ .num_phy = 1,
+ .check_efuse = false,
+ .check_efuse_version = CHECK_EFUSE_V1,
+ .efuse_dc_driving_rate = 1,
+ .dc_driving_mask = 0xf,
+ .efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+ .dc_disconnect_mask = 0xf,
+ .usb_dc_disconnect_at_page0 = true,
+ .do_toggle = true,
+ .do_toggle_driving = false,
+ .driving_updated_for_dev_dis = 0xf,
+ .use_default_parameter = false,
+ .is_double_sensitivity_mode = false,
+};
+
+static const struct phy_cfg rtd1395_phy_cfg_2port = {
+ .page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+ .page0 = { [4] = {0xe4, 0xac},
+ [13] = {0xf5, 0x00},
+ [15] = {0xf7, 0x02}, },
+ .page1_size = 8,
+ .page1 = { /* default parameter */ },
+ .page2_size = 0,
+ .page2 = { /* no parameter */ },
+ .num_phy = 2,
+ .check_efuse = false,
+ .check_efuse_version = CHECK_EFUSE_V1,
+ .efuse_dc_driving_rate = 1,
+ .dc_driving_mask = 0xf,
+ .efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+ .dc_disconnect_mask = 0xf,
+ .usb_dc_disconnect_at_page0 = true,
+ .do_toggle = true,
+ .do_toggle_driving = false,
+ .driving_updated_for_dev_dis = 0xf,
+ .use_default_parameter = false,
+ .is_double_sensitivity_mode = false,
+};
+
+static const struct phy_cfg rtd1619_phy_cfg = {
+ .page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+ .page0 = { [4] = {0xe4, 0x68}, },
+ .page1_size = 8,
+ .page1 = { /* default parameter */ },
+ .page2_size = 0,
+ .page2 = { /* no parameter */ },
+ .num_phy = 1,
+ .check_efuse = true,
+ .check_efuse_version = CHECK_EFUSE_V1,
+ .efuse_dc_driving_rate = 1,
+ .dc_driving_mask = 0xf,
+ .efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+ .dc_disconnect_mask = 0xf,
+ .usb_dc_disconnect_at_page0 = true,
+ .do_toggle = true,
+ .do_toggle_driving = false,
+ .driving_updated_for_dev_dis = 0xf,
+ .use_default_parameter = false,
+ .is_double_sensitivity_mode = false,
+};
+
+static const struct phy_cfg rtd1319_phy_cfg = {
+ .page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+ .page0 = { [0] = {0xe0, 0x18},
+ [4] = {0xe4, 0x6a},
+ [7] = {0xe7, 0x71},
+ [13] = {0xf5, 0x15},
+ [15] = {0xf7, 0x32}, },
+ .page1_size = 8,
+ .page1 = { [3] = {0xe3, 0x44}, },
+ .page2_size = MAX_USB_PHY_PAGE2_DATA_SIZE,
+ .page2 = { [0] = {0xe0, 0x01}, },
+ .num_phy = 1,
+ .check_efuse = true,
+ .check_efuse_version = CHECK_EFUSE_V1,
+ .efuse_dc_driving_rate = 1,
+ .dc_driving_mask = 0xf,
+ .efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+ .dc_disconnect_mask = 0xf,
+ .usb_dc_disconnect_at_page0 = true,
+ .do_toggle = true,
+ .do_toggle_driving = true,
+ .driving_updated_for_dev_dis = 0xf,
+ .use_default_parameter = false,
+ .is_double_sensitivity_mode = true,
+};
+
+static const struct phy_cfg rtd1312c_phy_cfg = {
+ .page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+ .page0 = { [0] = {0xe0, 0x14},
+ [4] = {0xe4, 0x67},
+ [5] = {0xe5, 0x55}, },
+ .page1_size = 8,
+ .page1 = { [3] = {0xe3, 0x23},
+ [6] = {0xe6, 0x58}, },
+ .page2_size = MAX_USB_PHY_PAGE2_DATA_SIZE,
+ .page2 = { /* default parameter */ },
+ .num_phy = 1,
+ .check_efuse = true,
+ .check_efuse_version = CHECK_EFUSE_V1,
+ .efuse_dc_driving_rate = 1,
+ .dc_driving_mask = 0xf,
+ .efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+ .dc_disconnect_mask = 0xf,
+ .usb_dc_disconnect_at_page0 = true,
+ .do_toggle = true,
+ .do_toggle_driving = true,
+ .driving_updated_for_dev_dis = 0xf,
+ .use_default_parameter = false,
+ .is_double_sensitivity_mode = true,
+};
+
+static const struct phy_cfg rtd1619b_phy_cfg = {
+ .page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+ .page0 = { [0] = {0xe0, 0xa3},
+ [4] = {0xe4, 0xa8},
+ [5] = {0xe5, 0x4f},
+ [6] = {0xe6, 0x02}, },
+ .page1_size = 8,
+ .page1 = { [3] = {0xe3, 0x64}, },
+ .page2_size = MAX_USB_PHY_PAGE2_DATA_SIZE,
+ .page2 = { [7] = {0xe7, 0x45}, },
+ .num_phy = 1,
+ .check_efuse = true,
+ .check_efuse_version = CHECK_EFUSE_V1,
+ .efuse_dc_driving_rate = EFUS_USB_DC_CAL_RATE,
+ .dc_driving_mask = 0x1f,
+ .efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+ .dc_disconnect_mask = 0xf,
+ .usb_dc_disconnect_at_page0 = false,
+ .do_toggle = true,
+ .do_toggle_driving = true,
+ .driving_updated_for_dev_dis = 0x8,
+ .use_default_parameter = false,
+ .is_double_sensitivity_mode = true,
+};
+
+static const struct phy_cfg rtd1319d_phy_cfg = {
+ .page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+ .page0 = { [0] = {0xe0, 0xa3},
+ [4] = {0xe4, 0x8e},
+ [5] = {0xe5, 0x4f},
+ [6] = {0xe6, 0x02}, },
+ .page1_size = MAX_USB_PHY_PAGE1_DATA_SIZE,
+ .page1 = { [14] = {0xf5, 0x1}, },
+ .page2_size = MAX_USB_PHY_PAGE2_DATA_SIZE,
+ .page2 = { [7] = {0xe7, 0x44}, },
+ .check_efuse = true,
+ .num_phy = 1,
+ .check_efuse_version = CHECK_EFUSE_V1,
+ .efuse_dc_driving_rate = EFUS_USB_DC_CAL_RATE,
+ .dc_driving_mask = 0x1f,
+ .efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+ .dc_disconnect_mask = 0xf,
+ .usb_dc_disconnect_at_page0 = false,
+ .do_toggle = true,
+ .do_toggle_driving = false,
+ .driving_updated_for_dev_dis = 0x8,
+ .use_default_parameter = false,
+ .is_double_sensitivity_mode = true,
+};
+
+static const struct phy_cfg rtd1315e_phy_cfg = {
+ .page0_size = MAX_USB_PHY_PAGE0_DATA_SIZE,
+ .page0 = { [0] = {0xe0, 0xa3},
+ [4] = {0xe4, 0x8c},
+ [5] = {0xe5, 0x4f},
+ [6] = {0xe6, 0x02}, },
+ .page1_size = MAX_USB_PHY_PAGE1_DATA_SIZE,
+ .page1 = { [3] = {0xe3, 0x7f},
+ [14] = {0xf5, 0x01}, },
+ .page2_size = MAX_USB_PHY_PAGE2_DATA_SIZE,
+ .page2 = { [7] = {0xe7, 0x44}, },
+ .num_phy = 1,
+ .check_efuse = true,
+ .check_efuse_version = CHECK_EFUSE_V2,
+ .efuse_dc_driving_rate = EFUS_USB_DC_CAL_RATE,
+ .dc_driving_mask = 0x1f,
+ .efuse_dc_disconnect_rate = EFUS_USB_DC_DIS_RATE,
+ .dc_disconnect_mask = 0xf,
+ .usb_dc_disconnect_at_page0 = false,
+ .do_toggle = true,
+ .do_toggle_driving = false,
+ .driving_updated_for_dev_dis = 0x8,
+ .use_default_parameter = false,
+ .is_double_sensitivity_mode = true,
+};
+
+static const struct of_device_id usbphy_rtk_dt_match[] = {
+ { .compatible = "realtek,rtd1295-usb2phy", .data = &rtd1295_phy_cfg },
+ { .compatible = "realtek,rtd1312c-usb2phy", .data = &rtd1312c_phy_cfg },
+ { .compatible = "realtek,rtd1315e-usb2phy", .data = &rtd1315e_phy_cfg },
+ { .compatible = "realtek,rtd1319-usb2phy", .data = &rtd1319_phy_cfg },
+ { .compatible = "realtek,rtd1319d-usb2phy", .data = &rtd1319d_phy_cfg },
+ { .compatible = "realtek,rtd1395-usb2phy", .data = &rtd1395_phy_cfg },
+ { .compatible = "realtek,rtd1395-usb2phy-2port", .data = &rtd1395_phy_cfg_2port },
+ { .compatible = "realtek,rtd1619-usb2phy", .data = &rtd1619_phy_cfg },
+ { .compatible = "realtek,rtd1619b-usb2phy", .data = &rtd1619b_phy_cfg },
+ {},
+};
+MODULE_DEVICE_TABLE(of, usbphy_rtk_dt_match);
+
+static struct platform_driver rtk_usb2phy_driver = {
+ .probe = rtk_usb2phy_probe,
+ .remove_new = rtk_usb2phy_remove,
+ .driver = {
+ .name = "rtk-usb2phy",
+ .of_match_table = usbphy_rtk_dt_match,
+ },
+};
+
+module_platform_driver(rtk_usb2phy_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Stanley Chang <stanley_chang@realtek.com>");
+MODULE_DESCRIPTION("Realtek usb 2.0 phy driver");
diff --git a/drivers/phy/realtek/phy-rtk-usb3.c b/drivers/phy/realtek/phy-rtk-usb3.c
new file mode 100644
index 0000000000..dfcf4b921b
--- /dev/null
+++ b/drivers/phy/realtek/phy-rtk-usb3.c
@@ -0,0 +1,748 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * phy-rtk-usb3.c RTK usb3.0 phy driver
+ *
+ * copyright (c) 2023 realtek semiconductor corporation
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+#include <linux/uaccess.h>
+#include <linux/debugfs.h>
+#include <linux/nvmem-consumer.h>
+#include <linux/regmap.h>
+#include <linux/sys_soc.h>
+#include <linux/mfd/syscon.h>
+#include <linux/phy/phy.h>
+#include <linux/usb.h>
+
+#define USB_MDIO_CTRL_PHY_BUSY BIT(7)
+#define USB_MDIO_CTRL_PHY_WRITE BIT(0)
+#define USB_MDIO_CTRL_PHY_ADDR_SHIFT 8
+#define USB_MDIO_CTRL_PHY_DATA_SHIFT 16
+
+#define MAX_USB_PHY_DATA_SIZE 0x30
+#define PHY_ADDR_0X09 0x09
+#define PHY_ADDR_0X0B 0x0b
+#define PHY_ADDR_0X0D 0x0d
+#define PHY_ADDR_0X10 0x10
+#define PHY_ADDR_0X1F 0x1f
+#define PHY_ADDR_0X20 0x20
+#define PHY_ADDR_0X21 0x21
+#define PHY_ADDR_0X30 0x30
+
+#define REG_0X09_FORCE_CALIBRATION BIT(9)
+#define REG_0X0B_RX_OFFSET_RANGE_MASK 0xc
+#define REG_0X0D_RX_DEBUG_TEST_EN BIT(6)
+#define REG_0X10_DEBUG_MODE_SETTING 0x3c0
+#define REG_0X10_DEBUG_MODE_SETTING_MASK 0x3f8
+#define REG_0X1F_RX_OFFSET_CODE_MASK 0x1e
+
+#define USB_U3_TX_LFPS_SWING_TRIM_SHIFT 4
+#define USB_U3_TX_LFPS_SWING_TRIM_MASK 0xf
+#define AMPLITUDE_CONTROL_COARSE_MASK 0xff
+#define AMPLITUDE_CONTROL_FINE_MASK 0xffff
+#define AMPLITUDE_CONTROL_COARSE_DEFAULT 0xff
+#define AMPLITUDE_CONTROL_FINE_DEFAULT 0xffff
+
+#define PHY_ADDR_MAP_ARRAY_INDEX(addr) (addr)
+#define ARRAY_INDEX_MAP_PHY_ADDR(index) (index)
+
+struct phy_reg {
+ void __iomem *reg_mdio_ctl;
+};
+
+struct phy_data {
+ u8 addr;
+ u16 data;
+};
+
+struct phy_cfg {
+ int param_size;
+ struct phy_data param[MAX_USB_PHY_DATA_SIZE];
+
+ bool check_efuse;
+ bool do_toggle;
+ bool do_toggle_once;
+ bool use_default_parameter;
+ bool check_rx_front_end_offset;
+};
+
+struct phy_parameter {
+ struct phy_reg phy_reg;
+
+ /* Get from efuse */
+ u8 efuse_usb_u3_tx_lfps_swing_trim;
+
+ /* Get from dts */
+ u32 amplitude_control_coarse;
+ u32 amplitude_control_fine;
+};
+
+struct rtk_phy {
+ struct device *dev;
+
+ struct phy_cfg *phy_cfg;
+ int num_phy;
+ struct phy_parameter *phy_parameter;
+
+ struct dentry *debug_dir;
+};
+
+#define PHY_IO_TIMEOUT_USEC (50000)
+#define PHY_IO_DELAY_US (100)
+
+static inline int utmi_wait_register(void __iomem *reg, u32 mask, u32 result)
+{
+ int ret;
+ unsigned int val;
+
+ ret = read_poll_timeout(readl, val, ((val & mask) == result),
+ PHY_IO_DELAY_US, PHY_IO_TIMEOUT_USEC, false, reg);
+ if (ret) {
+ pr_err("%s can't program USB phy\n", __func__);
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+}
+
+static int rtk_phy3_wait_vbusy(struct phy_reg *phy_reg)
+{
+ return utmi_wait_register(phy_reg->reg_mdio_ctl, USB_MDIO_CTRL_PHY_BUSY, 0);
+}
+
+static u16 rtk_phy_read(struct phy_reg *phy_reg, char addr)
+{
+ unsigned int tmp;
+ u32 value;
+
+ tmp = (addr << USB_MDIO_CTRL_PHY_ADDR_SHIFT);
+
+ writel(tmp, phy_reg->reg_mdio_ctl);
+
+ rtk_phy3_wait_vbusy(phy_reg);
+
+ value = readl(phy_reg->reg_mdio_ctl);
+ value = value >> USB_MDIO_CTRL_PHY_DATA_SHIFT;
+
+ return (u16)value;
+}
+
+static int rtk_phy_write(struct phy_reg *phy_reg, char addr, u16 data)
+{
+ unsigned int val;
+
+ val = USB_MDIO_CTRL_PHY_WRITE |
+ (addr << USB_MDIO_CTRL_PHY_ADDR_SHIFT) |
+ (data << USB_MDIO_CTRL_PHY_DATA_SHIFT);
+
+ writel(val, phy_reg->reg_mdio_ctl);
+
+ rtk_phy3_wait_vbusy(phy_reg);
+
+ return 0;
+}
+
+static void do_rtk_usb3_phy_toggle(struct rtk_phy *rtk_phy, int index, bool connect)
+{
+ struct phy_cfg *phy_cfg = rtk_phy->phy_cfg;
+ struct phy_reg *phy_reg;
+ struct phy_parameter *phy_parameter;
+ struct phy_data *phy_data;
+ u8 addr;
+ u16 data;
+ int i;
+
+ phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+ phy_reg = &phy_parameter->phy_reg;
+
+ if (!phy_cfg->do_toggle)
+ return;
+
+ i = PHY_ADDR_MAP_ARRAY_INDEX(PHY_ADDR_0X09);
+ phy_data = phy_cfg->param + i;
+ addr = phy_data->addr;
+ data = phy_data->data;
+
+ if (!addr && !data) {
+ addr = PHY_ADDR_0X09;
+ data = rtk_phy_read(phy_reg, addr);
+ phy_data->addr = addr;
+ phy_data->data = data;
+ }
+
+ rtk_phy_write(phy_reg, addr, data & (~REG_0X09_FORCE_CALIBRATION));
+ mdelay(1);
+ rtk_phy_write(phy_reg, addr, data | REG_0X09_FORCE_CALIBRATION);
+}
+
+static int do_rtk_phy_init(struct rtk_phy *rtk_phy, int index)
+{
+ struct phy_cfg *phy_cfg;
+ struct phy_reg *phy_reg;
+ struct phy_parameter *phy_parameter;
+ int i = 0;
+
+ phy_cfg = rtk_phy->phy_cfg;
+ phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+ phy_reg = &phy_parameter->phy_reg;
+
+ if (phy_cfg->use_default_parameter)
+ goto do_toggle;
+
+ for (i = 0; i < phy_cfg->param_size; i++) {
+ struct phy_data *phy_data = phy_cfg->param + i;
+ u8 addr = phy_data->addr;
+ u16 data = phy_data->data;
+
+ if (!addr && !data)
+ continue;
+
+ rtk_phy_write(phy_reg, addr, data);
+ }
+
+do_toggle:
+ if (phy_cfg->do_toggle_once)
+ phy_cfg->do_toggle = true;
+
+ do_rtk_usb3_phy_toggle(rtk_phy, index, false);
+
+ if (phy_cfg->do_toggle_once) {
+ u16 check_value = 0;
+ int count = 10;
+ u16 value_0x0d, value_0x10;
+
+ /* Enable Debug mode by set 0x0D and 0x10 */
+ value_0x0d = rtk_phy_read(phy_reg, PHY_ADDR_0X0D);
+ value_0x10 = rtk_phy_read(phy_reg, PHY_ADDR_0X10);
+
+ rtk_phy_write(phy_reg, PHY_ADDR_0X0D,
+ value_0x0d | REG_0X0D_RX_DEBUG_TEST_EN);
+ rtk_phy_write(phy_reg, PHY_ADDR_0X10,
+ (value_0x10 & ~REG_0X10_DEBUG_MODE_SETTING_MASK) |
+ REG_0X10_DEBUG_MODE_SETTING);
+
+ check_value = rtk_phy_read(phy_reg, PHY_ADDR_0X30);
+
+ while (!(check_value & BIT(15))) {
+ check_value = rtk_phy_read(phy_reg, PHY_ADDR_0X30);
+ mdelay(1);
+ if (count-- < 0)
+ break;
+ }
+
+ if (!(check_value & BIT(15)))
+ dev_info(rtk_phy->dev, "toggle fail addr=0x%02x, data=0x%04x\n",
+ PHY_ADDR_0X30, check_value);
+
+ /* Disable Debug mode by set 0x0D and 0x10 to default*/
+ rtk_phy_write(phy_reg, PHY_ADDR_0X0D, value_0x0d);
+ rtk_phy_write(phy_reg, PHY_ADDR_0X10, value_0x10);
+
+ phy_cfg->do_toggle = false;
+ }
+
+ if (phy_cfg->check_rx_front_end_offset) {
+ u16 rx_offset_code, rx_offset_range;
+ u16 code_mask = REG_0X1F_RX_OFFSET_CODE_MASK;
+ u16 range_mask = REG_0X0B_RX_OFFSET_RANGE_MASK;
+ bool do_update = false;
+
+ rx_offset_code = rtk_phy_read(phy_reg, PHY_ADDR_0X1F);
+ if (((rx_offset_code & code_mask) == 0x0) ||
+ ((rx_offset_code & code_mask) == code_mask))
+ do_update = true;
+
+ rx_offset_range = rtk_phy_read(phy_reg, PHY_ADDR_0X0B);
+ if (((rx_offset_range & range_mask) == range_mask) && do_update) {
+ dev_warn(rtk_phy->dev, "Don't update rx_offset_range (rx_offset_code=0x%x, rx_offset_range=0x%x)\n",
+ rx_offset_code, rx_offset_range);
+ do_update = false;
+ }
+
+ if (do_update) {
+ u16 tmp1, tmp2;
+
+ tmp1 = rx_offset_range & (~range_mask);
+ tmp2 = rx_offset_range & range_mask;
+ tmp2 += (1 << 2);
+ rx_offset_range = tmp1 | (tmp2 & range_mask);
+ rtk_phy_write(phy_reg, PHY_ADDR_0X0B, rx_offset_range);
+ goto do_toggle;
+ }
+ }
+
+ return 0;
+}
+
+static int rtk_phy_init(struct phy *phy)
+{
+ struct rtk_phy *rtk_phy = phy_get_drvdata(phy);
+ int ret = 0;
+ int i;
+ unsigned long phy_init_time = jiffies;
+
+ for (i = 0; i < rtk_phy->num_phy; i++)
+ ret = do_rtk_phy_init(rtk_phy, i);
+
+ dev_dbg(rtk_phy->dev, "Initialized RTK USB 3.0 PHY (take %dms)\n",
+ jiffies_to_msecs(jiffies - phy_init_time));
+
+ return ret;
+}
+
+static int rtk_phy_exit(struct phy *phy)
+{
+ return 0;
+}
+
+static void rtk_phy_toggle(struct rtk_phy *rtk_phy, bool connect, int port)
+{
+ int index = port;
+
+ if (index > rtk_phy->num_phy) {
+ dev_err(rtk_phy->dev, "%s: The port=%d is not in usb phy (num_phy=%d)\n",
+ __func__, index, rtk_phy->num_phy);
+ return;
+ }
+
+ do_rtk_usb3_phy_toggle(rtk_phy, index, connect);
+}
+
+static int rtk_phy_connect(struct phy *phy, int port)
+{
+ struct rtk_phy *rtk_phy = phy_get_drvdata(phy);
+
+ dev_dbg(rtk_phy->dev, "%s port=%d\n", __func__, port);
+ rtk_phy_toggle(rtk_phy, true, port);
+
+ return 0;
+}
+
+static int rtk_phy_disconnect(struct phy *phy, int port)
+{
+ struct rtk_phy *rtk_phy = phy_get_drvdata(phy);
+
+ dev_dbg(rtk_phy->dev, "%s port=%d\n", __func__, port);
+ rtk_phy_toggle(rtk_phy, false, port);
+
+ return 0;
+}
+
+static const struct phy_ops ops = {
+ .init = rtk_phy_init,
+ .exit = rtk_phy_exit,
+ .connect = rtk_phy_connect,
+ .disconnect = rtk_phy_disconnect,
+ .owner = THIS_MODULE,
+};
+
+#ifdef CONFIG_DEBUG_FS
+static struct dentry *create_phy_debug_root(void)
+{
+ struct dentry *phy_debug_root;
+
+ phy_debug_root = debugfs_lookup("phy", usb_debug_root);
+ if (!phy_debug_root)
+ phy_debug_root = debugfs_create_dir("phy", usb_debug_root);
+
+ return phy_debug_root;
+}
+
+static int rtk_usb3_parameter_show(struct seq_file *s, void *unused)
+{
+ struct rtk_phy *rtk_phy = s->private;
+ struct phy_cfg *phy_cfg;
+ int i, index;
+
+ phy_cfg = rtk_phy->phy_cfg;
+
+ seq_puts(s, "Property:\n");
+ seq_printf(s, " check_efuse: %s\n",
+ phy_cfg->check_efuse ? "Enable" : "Disable");
+ seq_printf(s, " do_toggle: %s\n",
+ phy_cfg->do_toggle ? "Enable" : "Disable");
+ seq_printf(s, " do_toggle_once: %s\n",
+ phy_cfg->do_toggle_once ? "Enable" : "Disable");
+ seq_printf(s, " use_default_parameter: %s\n",
+ phy_cfg->use_default_parameter ? "Enable" : "Disable");
+
+ for (index = 0; index < rtk_phy->num_phy; index++) {
+ struct phy_reg *phy_reg;
+ struct phy_parameter *phy_parameter;
+
+ phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+ phy_reg = &phy_parameter->phy_reg;
+
+ seq_printf(s, "PHY %d:\n", index);
+
+ for (i = 0; i < phy_cfg->param_size; i++) {
+ struct phy_data *phy_data = phy_cfg->param + i;
+ u8 addr = ARRAY_INDEX_MAP_PHY_ADDR(i);
+ u16 data = phy_data->data;
+
+ if (!phy_data->addr && !data)
+ seq_printf(s, " addr = 0x%02x, data = none ==> read value = 0x%04x\n",
+ addr, rtk_phy_read(phy_reg, addr));
+ else
+ seq_printf(s, " addr = 0x%02x, data = 0x%04x ==> read value = 0x%04x\n",
+ addr, data, rtk_phy_read(phy_reg, addr));
+ }
+
+ seq_puts(s, "PHY Property:\n");
+ seq_printf(s, " efuse_usb_u3_tx_lfps_swing_trim: 0x%x\n",
+ (int)phy_parameter->efuse_usb_u3_tx_lfps_swing_trim);
+ seq_printf(s, " amplitude_control_coarse: 0x%x\n",
+ (int)phy_parameter->amplitude_control_coarse);
+ seq_printf(s, " amplitude_control_fine: 0x%x\n",
+ (int)phy_parameter->amplitude_control_fine);
+ }
+
+ return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(rtk_usb3_parameter);
+
+static inline void create_debug_files(struct rtk_phy *rtk_phy)
+{
+ struct dentry *phy_debug_root = NULL;
+
+ phy_debug_root = create_phy_debug_root();
+
+ if (!phy_debug_root)
+ return;
+
+ rtk_phy->debug_dir = debugfs_create_dir(dev_name(rtk_phy->dev), phy_debug_root);
+
+ debugfs_create_file("parameter", 0444, rtk_phy->debug_dir, rtk_phy,
+ &rtk_usb3_parameter_fops);
+}
+
+static inline void remove_debug_files(struct rtk_phy *rtk_phy)
+{
+ debugfs_remove_recursive(rtk_phy->debug_dir);
+}
+#else
+static inline void create_debug_files(struct rtk_phy *rtk_phy) { }
+static inline void remove_debug_files(struct rtk_phy *rtk_phy) { }
+#endif /* CONFIG_DEBUG_FS */
+
+static int get_phy_data_by_efuse(struct rtk_phy *rtk_phy,
+ struct phy_parameter *phy_parameter, int index)
+{
+ struct phy_cfg *phy_cfg = rtk_phy->phy_cfg;
+ u8 value = 0;
+ struct nvmem_cell *cell;
+
+ if (!phy_cfg->check_efuse)
+ goto out;
+
+ cell = nvmem_cell_get(rtk_phy->dev, "usb_u3_tx_lfps_swing_trim");
+ if (IS_ERR(cell)) {
+ dev_dbg(rtk_phy->dev, "%s no usb_u3_tx_lfps_swing_trim: %ld\n",
+ __func__, PTR_ERR(cell));
+ } else {
+ unsigned char *buf;
+ size_t buf_size;
+
+ buf = nvmem_cell_read(cell, &buf_size);
+ if (!IS_ERR(buf)) {
+ value = buf[0] & USB_U3_TX_LFPS_SWING_TRIM_MASK;
+ kfree(buf);
+ }
+ nvmem_cell_put(cell);
+ }
+
+ if (value > 0 && value < 0x8)
+ phy_parameter->efuse_usb_u3_tx_lfps_swing_trim = 0x8;
+ else
+ phy_parameter->efuse_usb_u3_tx_lfps_swing_trim = (u8)value;
+
+out:
+ return 0;
+}
+
+static void update_amplitude_control_value(struct rtk_phy *rtk_phy,
+ struct phy_parameter *phy_parameter)
+{
+ struct phy_cfg *phy_cfg;
+ struct phy_reg *phy_reg;
+
+ phy_reg = &phy_parameter->phy_reg;
+ phy_cfg = rtk_phy->phy_cfg;
+
+ if (phy_parameter->amplitude_control_coarse != AMPLITUDE_CONTROL_COARSE_DEFAULT) {
+ u16 val_mask = AMPLITUDE_CONTROL_COARSE_MASK;
+ u16 data;
+
+ if (!phy_cfg->param[PHY_ADDR_0X20].addr && !phy_cfg->param[PHY_ADDR_0X20].data) {
+ phy_cfg->param[PHY_ADDR_0X20].addr = PHY_ADDR_0X20;
+ data = rtk_phy_read(phy_reg, PHY_ADDR_0X20);
+ } else {
+ data = phy_cfg->param[PHY_ADDR_0X20].data;
+ }
+
+ data &= (~val_mask);
+ data |= (phy_parameter->amplitude_control_coarse & val_mask);
+
+ phy_cfg->param[PHY_ADDR_0X20].data = data;
+ }
+
+ if (phy_parameter->efuse_usb_u3_tx_lfps_swing_trim) {
+ u8 efuse_val = phy_parameter->efuse_usb_u3_tx_lfps_swing_trim;
+ u16 val_mask = USB_U3_TX_LFPS_SWING_TRIM_MASK;
+ int val_shift = USB_U3_TX_LFPS_SWING_TRIM_SHIFT;
+ u16 data;
+
+ if (!phy_cfg->param[PHY_ADDR_0X20].addr && !phy_cfg->param[PHY_ADDR_0X20].data) {
+ phy_cfg->param[PHY_ADDR_0X20].addr = PHY_ADDR_0X20;
+ data = rtk_phy_read(phy_reg, PHY_ADDR_0X20);
+ } else {
+ data = phy_cfg->param[PHY_ADDR_0X20].data;
+ }
+
+ data &= ~(val_mask << val_shift);
+ data |= ((efuse_val & val_mask) << val_shift);
+
+ phy_cfg->param[PHY_ADDR_0X20].data = data;
+ }
+
+ if (phy_parameter->amplitude_control_fine != AMPLITUDE_CONTROL_FINE_DEFAULT) {
+ u16 val_mask = AMPLITUDE_CONTROL_FINE_MASK;
+
+ if (!phy_cfg->param[PHY_ADDR_0X21].addr && !phy_cfg->param[PHY_ADDR_0X21].data)
+ phy_cfg->param[PHY_ADDR_0X21].addr = PHY_ADDR_0X21;
+
+ phy_cfg->param[PHY_ADDR_0X21].data =
+ phy_parameter->amplitude_control_fine & val_mask;
+ }
+}
+
+static int parse_phy_data(struct rtk_phy *rtk_phy)
+{
+ struct device *dev = rtk_phy->dev;
+ struct phy_parameter *phy_parameter;
+ int ret = 0;
+ int index;
+
+ rtk_phy->phy_parameter = devm_kzalloc(dev, sizeof(struct phy_parameter) *
+ rtk_phy->num_phy, GFP_KERNEL);
+ if (!rtk_phy->phy_parameter)
+ return -ENOMEM;
+
+ for (index = 0; index < rtk_phy->num_phy; index++) {
+ phy_parameter = &((struct phy_parameter *)rtk_phy->phy_parameter)[index];
+
+ phy_parameter->phy_reg.reg_mdio_ctl = of_iomap(dev->of_node, 0) + index;
+
+ /* Amplitude control address 0x20 bit 0 to bit 7 */
+ if (of_property_read_u32(dev->of_node, "realtek,amplitude-control-coarse-tuning",
+ &phy_parameter->amplitude_control_coarse))
+ phy_parameter->amplitude_control_coarse = AMPLITUDE_CONTROL_COARSE_DEFAULT;
+
+ /* Amplitude control address 0x21 bit 0 to bit 16 */
+ if (of_property_read_u32(dev->of_node, "realtek,amplitude-control-fine-tuning",
+ &phy_parameter->amplitude_control_fine))
+ phy_parameter->amplitude_control_fine = AMPLITUDE_CONTROL_FINE_DEFAULT;
+
+ get_phy_data_by_efuse(rtk_phy, phy_parameter, index);
+
+ update_amplitude_control_value(rtk_phy, phy_parameter);
+ }
+
+ return ret;
+}
+
+static int rtk_usb3phy_probe(struct platform_device *pdev)
+{
+ struct rtk_phy *rtk_phy;
+ struct device *dev = &pdev->dev;
+ struct phy *generic_phy;
+ struct phy_provider *phy_provider;
+ const struct phy_cfg *phy_cfg;
+ int ret;
+
+ phy_cfg = of_device_get_match_data(dev);
+ if (!phy_cfg) {
+ dev_err(dev, "phy config are not assigned!\n");
+ return -EINVAL;
+ }
+
+ rtk_phy = devm_kzalloc(dev, sizeof(*rtk_phy), GFP_KERNEL);
+ if (!rtk_phy)
+ return -ENOMEM;
+
+ rtk_phy->dev = &pdev->dev;
+ rtk_phy->phy_cfg = devm_kzalloc(dev, sizeof(*phy_cfg), GFP_KERNEL);
+
+ memcpy(rtk_phy->phy_cfg, phy_cfg, sizeof(*phy_cfg));
+
+ rtk_phy->num_phy = 1;
+
+ ret = parse_phy_data(rtk_phy);
+ if (ret)
+ goto err;
+
+ platform_set_drvdata(pdev, rtk_phy);
+
+ generic_phy = devm_phy_create(rtk_phy->dev, NULL, &ops);
+ if (IS_ERR(generic_phy))
+ return PTR_ERR(generic_phy);
+
+ phy_set_drvdata(generic_phy, rtk_phy);
+
+ phy_provider = devm_of_phy_provider_register(rtk_phy->dev, of_phy_simple_xlate);
+ if (IS_ERR(phy_provider))
+ return PTR_ERR(phy_provider);
+
+ create_debug_files(rtk_phy);
+
+err:
+ return ret;
+}
+
+static void rtk_usb3phy_remove(struct platform_device *pdev)
+{
+ struct rtk_phy *rtk_phy = platform_get_drvdata(pdev);
+
+ remove_debug_files(rtk_phy);
+}
+
+static const struct phy_cfg rtd1295_phy_cfg = {
+ .param_size = MAX_USB_PHY_DATA_SIZE,
+ .param = { [0] = {0x01, 0x4008}, [1] = {0x01, 0xe046},
+ [2] = {0x02, 0x6046}, [3] = {0x03, 0x2779},
+ [4] = {0x04, 0x72f5}, [5] = {0x05, 0x2ad3},
+ [6] = {0x06, 0x000e}, [7] = {0x07, 0x2e00},
+ [8] = {0x08, 0x3591}, [9] = {0x09, 0x525c},
+ [10] = {0x0a, 0xa600}, [11] = {0x0b, 0xa904},
+ [12] = {0x0c, 0xc000}, [13] = {0x0d, 0xef1c},
+ [14] = {0x0e, 0x2000}, [15] = {0x0f, 0x0000},
+ [16] = {0x10, 0x000c}, [17] = {0x11, 0x4c00},
+ [18] = {0x12, 0xfc00}, [19] = {0x13, 0x0c81},
+ [20] = {0x14, 0xde01}, [21] = {0x15, 0x0000},
+ [22] = {0x16, 0x0000}, [23] = {0x17, 0x0000},
+ [24] = {0x18, 0x0000}, [25] = {0x19, 0x4004},
+ [26] = {0x1a, 0x1260}, [27] = {0x1b, 0xff00},
+ [28] = {0x1c, 0xcb00}, [29] = {0x1d, 0xa03f},
+ [30] = {0x1e, 0xc2e0}, [31] = {0x1f, 0x2807},
+ [32] = {0x20, 0x947a}, [33] = {0x21, 0x88aa},
+ [34] = {0x22, 0x0057}, [35] = {0x23, 0xab66},
+ [36] = {0x24, 0x0800}, [37] = {0x25, 0x0000},
+ [38] = {0x26, 0x040a}, [39] = {0x27, 0x01d6},
+ [40] = {0x28, 0xf8c2}, [41] = {0x29, 0x3080},
+ [42] = {0x2a, 0x3082}, [43] = {0x2b, 0x2078},
+ [44] = {0x2c, 0xffff}, [45] = {0x2d, 0xffff},
+ [46] = {0x2e, 0x0000}, [47] = {0x2f, 0x0040}, },
+ .check_efuse = false,
+ .do_toggle = true,
+ .do_toggle_once = false,
+ .use_default_parameter = false,
+ .check_rx_front_end_offset = false,
+};
+
+static const struct phy_cfg rtd1619_phy_cfg = {
+ .param_size = MAX_USB_PHY_DATA_SIZE,
+ .param = { [8] = {0x08, 0x3591},
+ [38] = {0x26, 0x840b},
+ [40] = {0x28, 0xf842}, },
+ .check_efuse = false,
+ .do_toggle = true,
+ .do_toggle_once = false,
+ .use_default_parameter = false,
+ .check_rx_front_end_offset = false,
+};
+
+static const struct phy_cfg rtd1319_phy_cfg = {
+ .param_size = MAX_USB_PHY_DATA_SIZE,
+ .param = { [1] = {0x01, 0xac86},
+ [6] = {0x06, 0x0003},
+ [9] = {0x09, 0x924c},
+ [10] = {0x0a, 0xa608},
+ [11] = {0x0b, 0xb905},
+ [14] = {0x0e, 0x2010},
+ [32] = {0x20, 0x705a},
+ [33] = {0x21, 0xf645},
+ [34] = {0x22, 0x0013},
+ [35] = {0x23, 0xcb66},
+ [41] = {0x29, 0xff00}, },
+ .check_efuse = true,
+ .do_toggle = true,
+ .do_toggle_once = false,
+ .use_default_parameter = false,
+ .check_rx_front_end_offset = false,
+};
+
+static const struct phy_cfg rtd1619b_phy_cfg = {
+ .param_size = MAX_USB_PHY_DATA_SIZE,
+ .param = { [1] = {0x01, 0xac8c},
+ [6] = {0x06, 0x0017},
+ [9] = {0x09, 0x724c},
+ [10] = {0x0a, 0xb610},
+ [11] = {0x0b, 0xb90d},
+ [13] = {0x0d, 0xef2a},
+ [15] = {0x0f, 0x9050},
+ [16] = {0x10, 0x000c},
+ [32] = {0x20, 0x70ff},
+ [34] = {0x22, 0x0013},
+ [35] = {0x23, 0xdb66},
+ [38] = {0x26, 0x8609},
+ [41] = {0x29, 0xff13},
+ [42] = {0x2a, 0x3070}, },
+ .check_efuse = true,
+ .do_toggle = false,
+ .do_toggle_once = true,
+ .use_default_parameter = false,
+ .check_rx_front_end_offset = false,
+};
+
+static const struct phy_cfg rtd1319d_phy_cfg = {
+ .param_size = MAX_USB_PHY_DATA_SIZE,
+ .param = { [1] = {0x01, 0xac89},
+ [4] = {0x04, 0xf2f5},
+ [6] = {0x06, 0x0017},
+ [9] = {0x09, 0x424c},
+ [10] = {0x0a, 0x9610},
+ [11] = {0x0b, 0x9901},
+ [12] = {0x0c, 0xf000},
+ [13] = {0x0d, 0xef2a},
+ [14] = {0x0e, 0x1000},
+ [15] = {0x0f, 0x9050},
+ [32] = {0x20, 0x7077},
+ [35] = {0x23, 0x0b62},
+ [37] = {0x25, 0x10ec},
+ [42] = {0x2a, 0x3070}, },
+ .check_efuse = true,
+ .do_toggle = false,
+ .do_toggle_once = true,
+ .use_default_parameter = false,
+ .check_rx_front_end_offset = true,
+};
+
+static const struct of_device_id usbphy_rtk_dt_match[] = {
+ { .compatible = "realtek,rtd1295-usb3phy", .data = &rtd1295_phy_cfg },
+ { .compatible = "realtek,rtd1319-usb3phy", .data = &rtd1319_phy_cfg },
+ { .compatible = "realtek,rtd1319d-usb3phy", .data = &rtd1319d_phy_cfg },
+ { .compatible = "realtek,rtd1619-usb3phy", .data = &rtd1619_phy_cfg },
+ { .compatible = "realtek,rtd1619b-usb3phy", .data = &rtd1619b_phy_cfg },
+ {},
+};
+MODULE_DEVICE_TABLE(of, usbphy_rtk_dt_match);
+
+static struct platform_driver rtk_usb3phy_driver = {
+ .probe = rtk_usb3phy_probe,
+ .remove_new = rtk_usb3phy_remove,
+ .driver = {
+ .name = "rtk-usb3phy",
+ .of_match_table = usbphy_rtk_dt_match,
+ },
+};
+
+module_platform_driver(rtk_usb3phy_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Stanley Chang <stanley_chang@realtek.com>");
+MODULE_DESCRIPTION("Realtek usb 3.0 phy driver");
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-10 06:31:27 +0000