Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* Copyright (c) 2018, Broadcom */ |
| 3 | |
| 4 | /* |
| 5 | * This module contains USB PHY initialization for power up and S3 resume |
| 6 | * for newer Synopsys based USB hardware first used on the bcm7216. |
| 7 | */ |
| 8 | |
| 9 | #include <linux/delay.h> |
| 10 | #include <linux/io.h> |
| 11 | |
| 12 | #include <linux/soc/brcmstb/brcmstb.h> |
| 13 | #include "phy-brcm-usb-init.h" |
| 14 | |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 15 | #define PHY_LOCK_TIMEOUT_MS 200 |
| 16 | |
| 17 | /* Register definitions for syscon piarbctl registers */ |
| 18 | #define PIARBCTL_CAM 0x00 |
| 19 | #define PIARBCTL_SPLITTER 0x04 |
| 20 | #define PIARBCTL_MISC 0x08 |
| 21 | #define PIARBCTL_MISC_SECURE_MASK 0x80000000 |
| 22 | #define PIARBCTL_MISC_USB_SELECT_MASK 0x40000000 |
| 23 | #define PIARBCTL_MISC_USB_4G_SDRAM_MASK 0x20000000 |
| 24 | #define PIARBCTL_MISC_USB_PRIORITY_MASK 0x000f0000 |
| 25 | #define PIARBCTL_MISC_USB_MEM_PAGE_MASK 0x0000f000 |
| 26 | #define PIARBCTL_MISC_CAM1_MEM_PAGE_MASK 0x00000f00 |
| 27 | #define PIARBCTL_MISC_CAM0_MEM_PAGE_MASK 0x000000f0 |
| 28 | #define PIARBCTL_MISC_SATA_PRIORITY_MASK 0x0000000f |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 29 | |
| 30 | #define PIARBCTL_MISC_USB_ONLY_MASK \ |
| 31 | (PIARBCTL_MISC_USB_SELECT_MASK | \ |
| 32 | PIARBCTL_MISC_USB_4G_SDRAM_MASK | \ |
| 33 | PIARBCTL_MISC_USB_PRIORITY_MASK | \ |
| 34 | PIARBCTL_MISC_USB_MEM_PAGE_MASK) |
| 35 | |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 36 | /* Register definitions for the USB CTRL block */ |
| 37 | #define USB_CTRL_SETUP 0x00 |
| 38 | #define USB_CTRL_SETUP_STRAP_IPP_SEL_MASK 0x02000000 |
| 39 | #define USB_CTRL_SETUP_SCB2_EN_MASK 0x00008000 |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 40 | #define USB_CTRL_SETUP_tca_drv_sel_MASK 0x01000000 |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 41 | #define USB_CTRL_SETUP_SCB1_EN_MASK 0x00004000 |
| 42 | #define USB_CTRL_SETUP_SOFT_SHUTDOWN_MASK 0x00000200 |
| 43 | #define USB_CTRL_SETUP_IPP_MASK 0x00000020 |
| 44 | #define USB_CTRL_SETUP_IOC_MASK 0x00000010 |
| 45 | #define USB_CTRL_USB_PM 0x04 |
| 46 | #define USB_CTRL_USB_PM_USB_PWRDN_MASK 0x80000000 |
| 47 | #define USB_CTRL_USB_PM_SOFT_RESET_MASK 0x40000000 |
| 48 | #define USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK 0x00800000 |
| 49 | #define USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK 0x00400000 |
Al Cooper | ae532b2 | 2022-02-14 19:24:21 -0800 | [diff] [blame] | 50 | #define USB_CTRL_USB_PM_XHC_PME_EN_MASK 0x00000010 |
| 51 | #define USB_CTRL_USB_PM_XHC_S2_CLK_SWITCH_EN_MASK 0x00000008 |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 52 | #define USB_CTRL_USB_PM_STATUS 0x08 |
| 53 | #define USB_CTRL_USB_DEVICE_CTL1 0x10 |
| 54 | #define USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK 0x00000003 |
Al Cooper | b0c0b66c | 2020-01-03 13:18:11 -0500 | [diff] [blame] | 55 | #define USB_CTRL_TEST_PORT_CTL 0x30 |
| 56 | #define USB_CTRL_TEST_PORT_CTL_TPOUT_SEL_MASK 0x000000ff |
| 57 | #define USB_CTRL_TEST_PORT_CTL_TPOUT_SEL_PME_GEN_MASK 0x0000002e |
| 58 | #define USB_CTRL_TP_DIAG1 0x34 |
| 59 | #define USB_CTLR_TP_DIAG1_wake_MASK 0x00000002 |
| 60 | #define USB_CTRL_CTLR_CSHCR 0x50 |
| 61 | #define USB_CTRL_CTLR_CSHCR_ctl_pme_en_MASK 0x00040000 |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 62 | |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 63 | /* Register definitions for the USB_PHY block in 7211b0 */ |
Al Cooper | b0c0b66c | 2020-01-03 13:18:11 -0500 | [diff] [blame] | 64 | #define USB_PHY_PLL_CTL 0x00 |
| 65 | #define USB_PHY_PLL_CTL_PLL_RESETB_MASK 0x40000000 |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 66 | #define USB_PHY_PLL_LDO_CTL 0x08 |
| 67 | #define USB_PHY_PLL_LDO_CTL_AFE_CORERDY_MASK 0x00000004 |
Al Cooper | b0c0b66c | 2020-01-03 13:18:11 -0500 | [diff] [blame] | 68 | #define USB_PHY_PLL_LDO_CTL_AFE_LDO_PWRDWNB_MASK 0x00000002 |
| 69 | #define USB_PHY_PLL_LDO_CTL_AFE_BG_PWRDWNB_MASK 0x00000001 |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 70 | #define USB_PHY_UTMI_CTL_1 0x04 |
Al Cooper | fc430ae | 2020-01-03 13:18:08 -0500 | [diff] [blame] | 71 | #define USB_PHY_UTMI_CTL_1_POWER_UP_FSM_EN_MASK 0x00000800 |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 72 | #define USB_PHY_UTMI_CTL_1_PHY_MODE_MASK 0x0000000c |
| 73 | #define USB_PHY_UTMI_CTL_1_PHY_MODE_SHIFT 2 |
Al Cooper | b0c0b66c | 2020-01-03 13:18:11 -0500 | [diff] [blame] | 74 | #define USB_PHY_IDDQ 0x1c |
| 75 | #define USB_PHY_IDDQ_phy_iddq_MASK 0x00000001 |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 76 | #define USB_PHY_STATUS 0x20 |
| 77 | #define USB_PHY_STATUS_pll_lock_MASK 0x00000001 |
| 78 | |
| 79 | /* Register definitions for the MDIO registers in the DWC2 block of |
| 80 | * the 7211b0. |
| 81 | * NOTE: The PHY's MDIO registers are only accessible through the |
| 82 | * legacy DesignWare USB controller even though it's not being used. |
| 83 | */ |
| 84 | #define USB_GMDIOCSR 0 |
| 85 | #define USB_GMDIOGEN 4 |
| 86 | |
Al Cooper | bed63b6 | 2020-01-03 13:18:09 -0500 | [diff] [blame] | 87 | /* Register definitions for the BDC EC block in 7211b0 */ |
| 88 | #define BDC_EC_AXIRDA 0x0c |
| 89 | #define BDC_EC_AXIRDA_RTS_MASK 0xf0000000 |
| 90 | #define BDC_EC_AXIRDA_RTS_SHIFT 28 |
| 91 | |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 92 | |
| 93 | static void usb_mdio_write_7211b0(struct brcm_usb_init_params *params, |
| 94 | uint8_t addr, uint16_t data) |
| 95 | { |
| 96 | void __iomem *usb_mdio = params->regs[BRCM_REGS_USB_MDIO]; |
| 97 | |
| 98 | addr &= 0x1f; /* 5-bit address */ |
| 99 | brcm_usb_writel(0xffffffff, usb_mdio + USB_GMDIOGEN); |
| 100 | while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31)) |
| 101 | ; |
| 102 | brcm_usb_writel(0x59020000 | (addr << 18) | data, |
| 103 | usb_mdio + USB_GMDIOGEN); |
| 104 | while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31)) |
| 105 | ; |
| 106 | brcm_usb_writel(0x00000000, usb_mdio + USB_GMDIOGEN); |
| 107 | while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31)) |
| 108 | ; |
| 109 | } |
| 110 | |
| 111 | static uint16_t __maybe_unused usb_mdio_read_7211b0( |
| 112 | struct brcm_usb_init_params *params, uint8_t addr) |
| 113 | { |
| 114 | void __iomem *usb_mdio = params->regs[BRCM_REGS_USB_MDIO]; |
| 115 | |
| 116 | addr &= 0x1f; /* 5-bit address */ |
| 117 | brcm_usb_writel(0xffffffff, usb_mdio + USB_GMDIOGEN); |
| 118 | while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31)) |
| 119 | ; |
| 120 | brcm_usb_writel(0x69020000 | (addr << 18), usb_mdio + USB_GMDIOGEN); |
| 121 | while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31)) |
| 122 | ; |
| 123 | brcm_usb_writel(0x00000000, usb_mdio + USB_GMDIOGEN); |
| 124 | while (brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & (1<<31)) |
| 125 | ; |
| 126 | return brcm_usb_readl(usb_mdio + USB_GMDIOCSR) & 0xffff; |
| 127 | } |
| 128 | |
| 129 | static void usb2_eye_fix_7211b0(struct brcm_usb_init_params *params) |
| 130 | { |
| 131 | /* select bank */ |
| 132 | usb_mdio_write_7211b0(params, 0x1f, 0x80a0); |
| 133 | |
| 134 | /* Set the eye */ |
| 135 | usb_mdio_write_7211b0(params, 0x0a, 0xc6a0); |
| 136 | } |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 137 | |
| 138 | static void xhci_soft_reset(struct brcm_usb_init_params *params, |
| 139 | int on_off) |
| 140 | { |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 141 | void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 142 | |
| 143 | /* Assert reset */ |
| 144 | if (on_off) |
| 145 | USB_CTRL_UNSET(ctrl, USB_PM, XHC_SOFT_RESETB); |
| 146 | /* De-assert reset */ |
| 147 | else |
| 148 | USB_CTRL_SET(ctrl, USB_PM, XHC_SOFT_RESETB); |
| 149 | } |
| 150 | |
| 151 | static void usb_init_ipp(struct brcm_usb_init_params *params) |
| 152 | { |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 153 | void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 154 | u32 reg; |
| 155 | u32 orig_reg; |
| 156 | |
| 157 | pr_debug("%s\n", __func__); |
| 158 | |
| 159 | orig_reg = reg = brcm_usb_readl(USB_CTRL_REG(ctrl, SETUP)); |
| 160 | if (params->ipp != 2) |
| 161 | /* override ipp strap pin (if it exits) */ |
| 162 | reg &= ~(USB_CTRL_MASK(SETUP, STRAP_IPP_SEL)); |
| 163 | |
| 164 | /* Override the default OC and PP polarity */ |
| 165 | reg &= ~(USB_CTRL_MASK(SETUP, IPP) | USB_CTRL_MASK(SETUP, IOC)); |
| 166 | if (params->ioc) |
| 167 | reg |= USB_CTRL_MASK(SETUP, IOC); |
| 168 | if (params->ipp == 1) |
| 169 | reg |= USB_CTRL_MASK(SETUP, IPP); |
| 170 | brcm_usb_writel(reg, USB_CTRL_REG(ctrl, SETUP)); |
| 171 | |
| 172 | /* |
| 173 | * If we're changing IPP, make sure power is off long enough |
| 174 | * to turn off any connected devices. |
| 175 | */ |
| 176 | if ((reg ^ orig_reg) & USB_CTRL_MASK(SETUP, IPP)) |
| 177 | msleep(50); |
| 178 | } |
| 179 | |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 180 | static void syscon_piarbctl_init(struct regmap *rmap) |
| 181 | { |
| 182 | /* Switch from legacy USB OTG controller to new STB USB controller */ |
| 183 | regmap_update_bits(rmap, PIARBCTL_MISC, PIARBCTL_MISC_USB_ONLY_MASK, |
| 184 | PIARBCTL_MISC_USB_SELECT_MASK | |
| 185 | PIARBCTL_MISC_USB_4G_SDRAM_MASK); |
| 186 | } |
| 187 | |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 188 | static void usb_init_common(struct brcm_usb_init_params *params) |
| 189 | { |
| 190 | u32 reg; |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 191 | void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 192 | |
| 193 | pr_debug("%s\n", __func__); |
| 194 | |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 195 | if (USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE)) { |
| 196 | reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); |
| 197 | reg &= ~USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE); |
| 198 | reg |= params->mode; |
| 199 | brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); |
| 200 | } |
| 201 | switch (params->mode) { |
| 202 | case USB_CTLR_MODE_HOST: |
| 203 | USB_CTRL_UNSET(ctrl, USB_PM, BDC_SOFT_RESETB); |
| 204 | break; |
| 205 | default: |
| 206 | USB_CTRL_UNSET(ctrl, USB_PM, BDC_SOFT_RESETB); |
| 207 | USB_CTRL_SET(ctrl, USB_PM, BDC_SOFT_RESETB); |
| 208 | break; |
| 209 | } |
| 210 | } |
| 211 | |
Al Cooper | b0c0b66c | 2020-01-03 13:18:11 -0500 | [diff] [blame] | 212 | static void usb_wake_enable_7211b0(struct brcm_usb_init_params *params, |
| 213 | bool enable) |
| 214 | { |
| 215 | void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; |
| 216 | |
| 217 | if (enable) |
| 218 | USB_CTRL_SET(ctrl, CTLR_CSHCR, ctl_pme_en); |
| 219 | else |
| 220 | USB_CTRL_UNSET(ctrl, CTLR_CSHCR, ctl_pme_en); |
| 221 | } |
| 222 | |
Al Cooper | ae532b2 | 2022-02-14 19:24:21 -0800 | [diff] [blame] | 223 | static void usb_wake_enable_7216(struct brcm_usb_init_params *params, |
| 224 | bool enable) |
| 225 | { |
| 226 | void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; |
| 227 | |
| 228 | if (enable) |
| 229 | USB_CTRL_SET(ctrl, USB_PM, XHC_PME_EN); |
| 230 | else |
| 231 | USB_CTRL_UNSET(ctrl, USB_PM, XHC_PME_EN); |
| 232 | } |
| 233 | |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 234 | static void usb_init_common_7211b0(struct brcm_usb_init_params *params) |
| 235 | { |
| 236 | void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; |
| 237 | void __iomem *usb_phy = params->regs[BRCM_REGS_USB_PHY]; |
Al Cooper | bed63b6 | 2020-01-03 13:18:09 -0500 | [diff] [blame] | 238 | void __iomem *bdc_ec = params->regs[BRCM_REGS_BDC_EC]; |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 239 | int timeout_ms = PHY_LOCK_TIMEOUT_MS; |
| 240 | u32 reg; |
| 241 | |
| 242 | if (params->syscon_piarbctl) |
| 243 | syscon_piarbctl_init(params->syscon_piarbctl); |
| 244 | |
Al Cooper | b0c0b66c | 2020-01-03 13:18:11 -0500 | [diff] [blame] | 245 | USB_CTRL_UNSET(ctrl, USB_PM, USB_PWRDN); |
| 246 | |
| 247 | usb_wake_enable_7211b0(params, false); |
| 248 | if (!params->wake_enabled) { |
| 249 | |
| 250 | /* undo possible suspend settings */ |
| 251 | brcm_usb_writel(0, usb_phy + USB_PHY_IDDQ); |
| 252 | reg = brcm_usb_readl(usb_phy + USB_PHY_PLL_CTL); |
| 253 | reg |= USB_PHY_PLL_CTL_PLL_RESETB_MASK; |
| 254 | brcm_usb_writel(reg, usb_phy + USB_PHY_PLL_CTL); |
| 255 | |
| 256 | /* temporarily enable FSM so PHY comes up properly */ |
| 257 | reg = brcm_usb_readl(usb_phy + USB_PHY_UTMI_CTL_1); |
| 258 | reg |= USB_PHY_UTMI_CTL_1_POWER_UP_FSM_EN_MASK; |
| 259 | brcm_usb_writel(reg, usb_phy + USB_PHY_UTMI_CTL_1); |
| 260 | } |
| 261 | |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 262 | /* Init the PHY */ |
Al Cooper | b0c0b66c | 2020-01-03 13:18:11 -0500 | [diff] [blame] | 263 | reg = USB_PHY_PLL_LDO_CTL_AFE_CORERDY_MASK | |
| 264 | USB_PHY_PLL_LDO_CTL_AFE_LDO_PWRDWNB_MASK | |
| 265 | USB_PHY_PLL_LDO_CTL_AFE_BG_PWRDWNB_MASK; |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 266 | brcm_usb_writel(reg, usb_phy + USB_PHY_PLL_LDO_CTL); |
| 267 | |
| 268 | /* wait for lock */ |
| 269 | while (timeout_ms-- > 0) { |
| 270 | reg = brcm_usb_readl(usb_phy + USB_PHY_STATUS); |
| 271 | if (reg & USB_PHY_STATUS_pll_lock_MASK) |
| 272 | break; |
| 273 | usleep_range(1000, 2000); |
| 274 | } |
| 275 | |
| 276 | /* Set the PHY_MODE */ |
| 277 | reg = brcm_usb_readl(usb_phy + USB_PHY_UTMI_CTL_1); |
| 278 | reg &= ~USB_PHY_UTMI_CTL_1_PHY_MODE_MASK; |
| 279 | reg |= params->mode << USB_PHY_UTMI_CTL_1_PHY_MODE_SHIFT; |
| 280 | brcm_usb_writel(reg, usb_phy + USB_PHY_UTMI_CTL_1); |
| 281 | |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 282 | usb_init_common(params); |
| 283 | |
Al Cooper | fc430ae | 2020-01-03 13:18:08 -0500 | [diff] [blame] | 284 | /* |
Al Cooper | bed63b6 | 2020-01-03 13:18:09 -0500 | [diff] [blame] | 285 | * The BDC controller will get occasional failures with |
| 286 | * the default "Read Transaction Size" of 6 (1024 bytes). |
| 287 | * Set it to 4 (256 bytes). |
| 288 | */ |
| 289 | if ((params->mode != USB_CTLR_MODE_HOST) && bdc_ec) { |
| 290 | reg = brcm_usb_readl(bdc_ec + BDC_EC_AXIRDA); |
| 291 | reg &= ~BDC_EC_AXIRDA_RTS_MASK; |
| 292 | reg |= (0x4 << BDC_EC_AXIRDA_RTS_SHIFT); |
| 293 | brcm_usb_writel(reg, bdc_ec + BDC_EC_AXIRDA); |
| 294 | } |
| 295 | |
| 296 | /* |
Al Cooper | fc430ae | 2020-01-03 13:18:08 -0500 | [diff] [blame] | 297 | * Disable FSM, otherwise the PHY will auto suspend when no |
| 298 | * device is connected and will be reset on resume. |
| 299 | */ |
| 300 | reg = brcm_usb_readl(usb_phy + USB_PHY_UTMI_CTL_1); |
| 301 | reg &= ~USB_PHY_UTMI_CTL_1_POWER_UP_FSM_EN_MASK; |
| 302 | brcm_usb_writel(reg, usb_phy + USB_PHY_UTMI_CTL_1); |
| 303 | |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 304 | usb2_eye_fix_7211b0(params); |
| 305 | } |
| 306 | |
Al Cooper | ae532b2 | 2022-02-14 19:24:21 -0800 | [diff] [blame] | 307 | static void usb_init_common_7216(struct brcm_usb_init_params *params) |
| 308 | { |
| 309 | void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; |
| 310 | |
| 311 | USB_CTRL_UNSET(ctrl, USB_PM, XHC_S2_CLK_SWITCH_EN); |
| 312 | USB_CTRL_UNSET(ctrl, USB_PM, USB_PWRDN); |
| 313 | |
| 314 | /* 1 millisecond - for USB clocks to settle down */ |
| 315 | usleep_range(1000, 2000); |
| 316 | |
| 317 | usb_wake_enable_7216(params, false); |
| 318 | usb_init_common(params); |
| 319 | } |
| 320 | |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 321 | static void usb_init_xhci(struct brcm_usb_init_params *params) |
| 322 | { |
| 323 | pr_debug("%s\n", __func__); |
| 324 | |
| 325 | xhci_soft_reset(params, 0); |
| 326 | } |
| 327 | |
Al Cooper | ae532b2 | 2022-02-14 19:24:21 -0800 | [diff] [blame] | 328 | static void usb_uninit_common_7216(struct brcm_usb_init_params *params) |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 329 | { |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 330 | void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 331 | |
| 332 | pr_debug("%s\n", __func__); |
| 333 | |
Al Cooper | ae532b2 | 2022-02-14 19:24:21 -0800 | [diff] [blame] | 334 | if (!params->wake_enabled) { |
| 335 | USB_CTRL_SET(ctrl, USB_PM, USB_PWRDN); |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 336 | |
Al Cooper | ae532b2 | 2022-02-14 19:24:21 -0800 | [diff] [blame] | 337 | /* Switch to using slower clock during suspend to save power */ |
| 338 | USB_CTRL_SET(ctrl, USB_PM, XHC_S2_CLK_SWITCH_EN); |
| 339 | } else { |
| 340 | usb_wake_enable_7216(params, true); |
| 341 | } |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 342 | } |
| 343 | |
Al Cooper | b0c0b66c | 2020-01-03 13:18:11 -0500 | [diff] [blame] | 344 | static void usb_uninit_common_7211b0(struct brcm_usb_init_params *params) |
| 345 | { |
| 346 | void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; |
| 347 | void __iomem *usb_phy = params->regs[BRCM_REGS_USB_PHY]; |
| 348 | u32 reg; |
| 349 | |
| 350 | pr_debug("%s\n", __func__); |
| 351 | |
| 352 | if (params->wake_enabled) { |
| 353 | USB_CTRL_SET(ctrl, TEST_PORT_CTL, TPOUT_SEL_PME_GEN); |
| 354 | usb_wake_enable_7211b0(params, true); |
| 355 | } else { |
| 356 | USB_CTRL_SET(ctrl, USB_PM, USB_PWRDN); |
| 357 | brcm_usb_writel(0, usb_phy + USB_PHY_PLL_LDO_CTL); |
| 358 | reg = brcm_usb_readl(usb_phy + USB_PHY_PLL_CTL); |
| 359 | reg &= ~USB_PHY_PLL_CTL_PLL_RESETB_MASK; |
| 360 | brcm_usb_writel(reg, usb_phy + USB_PHY_PLL_CTL); |
| 361 | brcm_usb_writel(USB_PHY_IDDQ_phy_iddq_MASK, |
| 362 | usb_phy + USB_PHY_IDDQ); |
| 363 | } |
| 364 | |
| 365 | } |
| 366 | |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 367 | static void usb_uninit_xhci(struct brcm_usb_init_params *params) |
| 368 | { |
| 369 | |
| 370 | pr_debug("%s\n", __func__); |
| 371 | |
Al Cooper | b0c0b66c | 2020-01-03 13:18:11 -0500 | [diff] [blame] | 372 | if (!params->wake_enabled) |
| 373 | xhci_soft_reset(params, 1); |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 374 | } |
| 375 | |
| 376 | static int usb_get_dual_select(struct brcm_usb_init_params *params) |
| 377 | { |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 378 | void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 379 | u32 reg = 0; |
| 380 | |
| 381 | pr_debug("%s\n", __func__); |
| 382 | |
| 383 | reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); |
| 384 | reg &= USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE); |
| 385 | return reg; |
| 386 | } |
| 387 | |
| 388 | static void usb_set_dual_select(struct brcm_usb_init_params *params, int mode) |
| 389 | { |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 390 | void __iomem *ctrl = params->regs[BRCM_REGS_CTRL]; |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 391 | u32 reg; |
| 392 | |
| 393 | pr_debug("%s\n", __func__); |
| 394 | |
| 395 | reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); |
| 396 | reg &= ~USB_CTRL_MASK(USB_DEVICE_CTL1, PORT_MODE); |
| 397 | reg |= mode; |
| 398 | brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1)); |
| 399 | } |
| 400 | |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 401 | static const struct brcm_usb_init_ops bcm7216_ops = { |
| 402 | .init_ipp = usb_init_ipp, |
Al Cooper | ae532b2 | 2022-02-14 19:24:21 -0800 | [diff] [blame] | 403 | .init_common = usb_init_common_7216, |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 404 | .init_xhci = usb_init_xhci, |
Al Cooper | ae532b2 | 2022-02-14 19:24:21 -0800 | [diff] [blame] | 405 | .uninit_common = usb_uninit_common_7216, |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 406 | .uninit_xhci = usb_uninit_xhci, |
| 407 | .get_dual_select = usb_get_dual_select, |
| 408 | .set_dual_select = usb_set_dual_select, |
| 409 | }; |
| 410 | |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 411 | static const struct brcm_usb_init_ops bcm7211b0_ops = { |
| 412 | .init_ipp = usb_init_ipp, |
| 413 | .init_common = usb_init_common_7211b0, |
| 414 | .init_xhci = usb_init_xhci, |
Al Cooper | b0c0b66c | 2020-01-03 13:18:11 -0500 | [diff] [blame] | 415 | .uninit_common = usb_uninit_common_7211b0, |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 416 | .uninit_xhci = usb_uninit_xhci, |
| 417 | .get_dual_select = usb_get_dual_select, |
| 418 | .set_dual_select = usb_set_dual_select, |
| 419 | }; |
| 420 | |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 421 | void brcm_usb_dvr_init_7216(struct brcm_usb_init_params *params) |
| 422 | { |
| 423 | |
| 424 | pr_debug("%s\n", __func__); |
| 425 | |
| 426 | params->family_name = "7216"; |
| 427 | params->ops = &bcm7216_ops; |
Al Cooper | ae532b2 | 2022-02-14 19:24:21 -0800 | [diff] [blame] | 428 | params->suspend_with_clocks = true; |
Al Cooper | 4e5b9c9 | 2020-01-03 13:18:05 -0500 | [diff] [blame] | 429 | } |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 430 | |
| 431 | void brcm_usb_dvr_init_7211b0(struct brcm_usb_init_params *params) |
| 432 | { |
| 433 | |
| 434 | pr_debug("%s\n", __func__); |
| 435 | |
| 436 | params->family_name = "7211"; |
| 437 | params->ops = &bcm7211b0_ops; |
Al Cooper | b0c0b66c | 2020-01-03 13:18:11 -0500 | [diff] [blame] | 438 | params->suspend_with_clocks = true; |
Al Cooper | 9d5f51d | 2020-01-03 13:18:06 -0500 | [diff] [blame] | 439 | } |