1 /* 2 * Copyright (c) 2014-2015, NVIDIA CORPORATION. All rights reserved. 3 * 4 * SPDX-License-Identifier: GPL-2.0 5 */ 6 7 #define pr_fmt(fmt) "tegra-xusb-padctl: " fmt 8 9 #include <common.h> 10 #include <errno.h> 11 12 #include "../xusb-padctl-common.h" 13 14 #include <asm/arch/clock.h> 15 16 #include <dt-bindings/pinctrl/pinctrl-tegra-xusb.h> 17 18 enum tegra210_function { 19 TEGRA210_FUNC_SNPS, 20 TEGRA210_FUNC_XUSB, 21 TEGRA210_FUNC_UART, 22 TEGRA210_FUNC_PCIE_X1, 23 TEGRA210_FUNC_PCIE_X4, 24 TEGRA210_FUNC_USB3, 25 TEGRA210_FUNC_SATA, 26 TEGRA210_FUNC_RSVD, 27 }; 28 29 static const char *const tegra210_functions[] = { 30 "snps", 31 "xusb", 32 "uart", 33 "pcie-x1", 34 "pcie-x4", 35 "usb3", 36 "sata", 37 "rsvd", 38 }; 39 40 static const unsigned int tegra210_otg_functions[] = { 41 TEGRA210_FUNC_SNPS, 42 TEGRA210_FUNC_XUSB, 43 TEGRA210_FUNC_UART, 44 TEGRA210_FUNC_RSVD, 45 }; 46 47 static const unsigned int tegra210_usb_functions[] = { 48 TEGRA210_FUNC_SNPS, 49 TEGRA210_FUNC_XUSB, 50 }; 51 52 static const unsigned int tegra210_pci_functions[] = { 53 TEGRA210_FUNC_PCIE_X1, 54 TEGRA210_FUNC_USB3, 55 TEGRA210_FUNC_SATA, 56 TEGRA210_FUNC_PCIE_X4, 57 }; 58 59 #define TEGRA210_LANE(_name, _offset, _shift, _mask, _iddq, _funcs) \ 60 { \ 61 .name = _name, \ 62 .offset = _offset, \ 63 .shift = _shift, \ 64 .mask = _mask, \ 65 .iddq = _iddq, \ 66 .num_funcs = ARRAY_SIZE(tegra210_##_funcs##_functions), \ 67 .funcs = tegra210_##_funcs##_functions, \ 68 } 69 70 static const struct tegra_xusb_padctl_lane tegra210_lanes[] = { 71 TEGRA210_LANE("otg-0", 0x004, 0, 0x3, 0, otg), 72 TEGRA210_LANE("otg-1", 0x004, 2, 0x3, 0, otg), 73 TEGRA210_LANE("otg-2", 0x004, 4, 0x3, 0, otg), 74 TEGRA210_LANE("otg-3", 0x004, 6, 0x3, 0, otg), 75 TEGRA210_LANE("usb2-bias", 0x004, 18, 0x3, 0, otg), 76 TEGRA210_LANE("hsic-0", 0x004, 14, 0x1, 0, usb), 77 TEGRA210_LANE("hsic-1", 0x004, 15, 0x1, 0, usb), 78 TEGRA210_LANE("pcie-0", 0x028, 12, 0x3, 1, pci), 79 TEGRA210_LANE("pcie-1", 0x028, 14, 0x3, 2, pci), 80 TEGRA210_LANE("pcie-2", 0x028, 16, 0x3, 3, pci), 81 TEGRA210_LANE("pcie-3", 0x028, 18, 0x3, 4, pci), 82 TEGRA210_LANE("pcie-4", 0x028, 20, 0x3, 5, pci), 83 TEGRA210_LANE("pcie-5", 0x028, 22, 0x3, 6, pci), 84 TEGRA210_LANE("pcie-6", 0x028, 24, 0x3, 7, pci), 85 TEGRA210_LANE("sata-0", 0x028, 30, 0x3, 8, pci), 86 }; 87 88 #define XUSB_PADCTL_ELPG_PROGRAM 0x024 89 #define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN (1 << 31) 90 #define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY (1 << 30) 91 #define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN (1 << 29) 92 93 static int tegra_xusb_padctl_enable(struct tegra_xusb_padctl *padctl) 94 { 95 u32 value; 96 97 if (padctl->enable++ > 0) 98 return 0; 99 100 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); 101 value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN; 102 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); 103 104 udelay(100); 105 106 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); 107 value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY; 108 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); 109 110 udelay(100); 111 112 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); 113 value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN; 114 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); 115 116 return 0; 117 } 118 119 static int tegra_xusb_padctl_disable(struct tegra_xusb_padctl *padctl) 120 { 121 u32 value; 122 123 if (padctl->enable == 0) { 124 error("unbalanced enable/disable"); 125 return 0; 126 } 127 128 if (--padctl->enable > 0) 129 return 0; 130 131 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); 132 value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN; 133 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); 134 135 udelay(100); 136 137 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); 138 value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY; 139 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); 140 141 udelay(100); 142 143 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM); 144 value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN; 145 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM); 146 147 return 0; 148 } 149 150 static int phy_prepare(struct tegra_xusb_phy *phy) 151 { 152 int err; 153 154 err = tegra_xusb_padctl_enable(phy->padctl); 155 if (err < 0) 156 return err; 157 158 reset_set_enable(PERIPH_ID_PEX_USB_UPHY, 0); 159 160 return 0; 161 } 162 163 static int phy_unprepare(struct tegra_xusb_phy *phy) 164 { 165 reset_set_enable(PERIPH_ID_PEX_USB_UPHY, 1); 166 167 return tegra_xusb_padctl_disable(phy->padctl); 168 } 169 170 #define XUSB_PADCTL_UPHY_PLL_P0_CTL1 0x360 171 #define XUSB_PADCTL_UPHY_PLL_P0_CTL1_FREQ_NDIV_MASK (0xff << 20) 172 #define XUSB_PADCTL_UPHY_PLL_P0_CTL1_FREQ_NDIV(x) (((x) & 0xff) << 20) 173 #define XUSB_PADCTL_UPHY_PLL_P0_CTL1_FREQ_MDIV_MASK (0x3 << 16) 174 #define XUSB_PADCTL_UPHY_PLL_P0_CTL1_LOCKDET_STATUS (1 << 15) 175 #define XUSB_PADCTL_UPHY_PLL_P0_CTL1_PWR_OVRD (1 << 4) 176 #define XUSB_PADCTL_UPHY_PLL_P0_CTL1_ENABLE (1 << 3) 177 #define XUSB_PADCTL_UPHY_PLL_P0_CTL1_SLEEP_MASK (0x3 << 1) 178 #define XUSB_PADCTL_UPHY_PLL_P0_CTL1_SLEEP(x) (((x) & 0x3) << 1) 179 #define XUSB_PADCTL_UPHY_PLL_P0_CTL1_IDDQ (1 << 0) 180 181 #define XUSB_PADCTL_UPHY_PLL_P0_CTL2 0x364 182 #define XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_CTRL_MASK (0xffffff << 4) 183 #define XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_CTRL(x) (((x) & 0xffffff) << 4) 184 #define XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_OVRD (1 << 2) 185 #define XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_DONE (1 << 1) 186 #define XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_EN (1 << 0) 187 188 #define XUSB_PADCTL_UPHY_PLL_P0_CTL4 0x36c 189 #define XUSB_PADCTL_UPHY_PLL_P0_CTL4_TXCLKREF_EN (1 << 15) 190 #define XUSB_PADCTL_UPHY_PLL_P0_CTL4_TXCLKREF_SEL_MASK (0x3 << 12) 191 #define XUSB_PADCTL_UPHY_PLL_P0_CTL4_TXCLKREF_SEL(x) (((x) & 0x3) << 12) 192 #define XUSB_PADCTL_UPHY_PLL_P0_CTL4_REFCLKBUF_EN (1 << 8) 193 #define XUSB_PADCTL_UPHY_PLL_P0_CTL4_REFCLK_SEL_MASK (0xf << 4) 194 195 #define XUSB_PADCTL_UPHY_PLL_P0_CTL5 0x370 196 #define XUSB_PADCTL_UPHY_PLL_P0_CTL5_DCO_CTRL_MASK (0xff << 16) 197 #define XUSB_PADCTL_UPHY_PLL_P0_CTL5_DCO_CTRL(x) (((x) & 0xff) << 16) 198 199 #define XUSB_PADCTL_UPHY_PLL_P0_CTL8 0x37c 200 #define XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_DONE (1 << 31) 201 #define XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_OVRD (1 << 15) 202 #define XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_CLK_EN (1 << 13) 203 #define XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_EN (1 << 12) 204 205 #define CLK_RST_XUSBIO_PLL_CFG0 0x51c 206 #define CLK_RST_XUSBIO_PLL_CFG0_SEQ_ENABLE (1 << 24) 207 #define CLK_RST_XUSBIO_PLL_CFG0_PADPLL_SLEEP_IDDQ (1 << 13) 208 #define CLK_RST_XUSBIO_PLL_CFG0_PADPLL_USE_LOCKDET (1 << 6) 209 #define CLK_RST_XUSBIO_PLL_CFG0_CLK_ENABLE_SWCTL (1 << 2) 210 #define CLK_RST_XUSBIO_PLL_CFG0_PADPLL_RESET_SWCTL (1 << 0) 211 212 static int pcie_phy_enable(struct tegra_xusb_phy *phy) 213 { 214 struct tegra_xusb_padctl *padctl = phy->padctl; 215 unsigned long start; 216 u32 value; 217 218 debug("> %s(phy=%p)\n", __func__, phy); 219 220 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); 221 value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_CTRL_MASK; 222 value |= XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_CTRL(0x136); 223 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2); 224 225 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL5); 226 value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL5_DCO_CTRL_MASK; 227 value |= XUSB_PADCTL_UPHY_PLL_P0_CTL5_DCO_CTRL(0x2a); 228 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL5); 229 230 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); 231 value |= XUSB_PADCTL_UPHY_PLL_P0_CTL1_PWR_OVRD; 232 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); 233 234 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); 235 value |= XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_OVRD; 236 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2); 237 238 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); 239 value |= XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_OVRD; 240 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); 241 242 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL4); 243 value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL4_TXCLKREF_SEL_MASK; 244 value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL4_REFCLK_SEL_MASK; 245 value |= XUSB_PADCTL_UPHY_PLL_P0_CTL4_TXCLKREF_SEL(2); 246 value |= XUSB_PADCTL_UPHY_PLL_P0_CTL4_TXCLKREF_EN; 247 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL4); 248 249 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); 250 value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL1_FREQ_MDIV_MASK; 251 value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL1_FREQ_NDIV_MASK; 252 value |= XUSB_PADCTL_UPHY_PLL_P0_CTL1_FREQ_NDIV(25); 253 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); 254 255 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); 256 value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL1_IDDQ; 257 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); 258 259 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); 260 value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL1_SLEEP_MASK; 261 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); 262 263 udelay(1); 264 265 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL4); 266 value |= XUSB_PADCTL_UPHY_PLL_P0_CTL4_REFCLKBUF_EN; 267 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL4); 268 269 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); 270 value |= XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_EN; 271 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2); 272 273 debug(" waiting for calibration\n"); 274 275 start = get_timer(0); 276 277 while (get_timer(start) < 250) { 278 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); 279 if (value & XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_DONE) 280 break; 281 } 282 if (!(value & XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_DONE)) { 283 debug(" timeout\n"); 284 return -ETIMEDOUT; 285 } 286 debug(" done\n"); 287 288 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); 289 value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_EN; 290 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2); 291 292 debug(" waiting for calibration to stop\n"); 293 294 start = get_timer(0); 295 296 while (get_timer(start) < 250) { 297 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); 298 if ((value & XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_DONE) == 0) 299 break; 300 } 301 if (value & XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_DONE) { 302 debug(" timeout\n"); 303 return -ETIMEDOUT; 304 } 305 debug(" done\n"); 306 307 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); 308 value |= XUSB_PADCTL_UPHY_PLL_P0_CTL1_ENABLE; 309 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); 310 311 debug(" waiting for PLL to lock...\n"); 312 start = get_timer(0); 313 314 while (get_timer(start) < 250) { 315 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); 316 if (value & XUSB_PADCTL_UPHY_PLL_P0_CTL1_LOCKDET_STATUS) 317 break; 318 } 319 if (!(value & XUSB_PADCTL_UPHY_PLL_P0_CTL1_LOCKDET_STATUS)) { 320 debug(" timeout\n"); 321 return -ETIMEDOUT; 322 } 323 debug(" done\n"); 324 325 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); 326 value |= XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_CLK_EN; 327 value |= XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_EN; 328 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); 329 330 debug(" waiting for register calibration...\n"); 331 start = get_timer(0); 332 333 while (get_timer(start) < 250) { 334 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); 335 if (value & XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_DONE) 336 break; 337 } 338 if (!(value & XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_DONE)) { 339 debug(" timeout\n"); 340 return -ETIMEDOUT; 341 } 342 debug(" done\n"); 343 344 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); 345 value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_EN; 346 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); 347 348 debug(" waiting for register calibration to stop...\n"); 349 start = get_timer(0); 350 351 while (get_timer(start) < 250) { 352 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); 353 if ((value & XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_DONE) == 0) 354 break; 355 } 356 if (value & XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_DONE) { 357 debug(" timeout\n"); 358 return -ETIMEDOUT; 359 } 360 debug(" done\n"); 361 362 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); 363 value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_CLK_EN; 364 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); 365 366 value = readl(NV_PA_CLK_RST_BASE + CLK_RST_XUSBIO_PLL_CFG0); 367 value &= ~CLK_RST_XUSBIO_PLL_CFG0_PADPLL_RESET_SWCTL; 368 value &= ~CLK_RST_XUSBIO_PLL_CFG0_CLK_ENABLE_SWCTL; 369 value |= CLK_RST_XUSBIO_PLL_CFG0_PADPLL_USE_LOCKDET; 370 value |= CLK_RST_XUSBIO_PLL_CFG0_PADPLL_SLEEP_IDDQ; 371 writel(value, NV_PA_CLK_RST_BASE + CLK_RST_XUSBIO_PLL_CFG0); 372 373 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); 374 value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL1_PWR_OVRD; 375 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); 376 377 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); 378 value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL2_CAL_OVRD; 379 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2); 380 381 value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); 382 value &= ~XUSB_PADCTL_UPHY_PLL_P0_CTL8_RCAL_OVRD; 383 padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); 384 385 udelay(1); 386 387 value = readl(NV_PA_CLK_RST_BASE + CLK_RST_XUSBIO_PLL_CFG0); 388 value |= CLK_RST_XUSBIO_PLL_CFG0_SEQ_ENABLE; 389 writel(value, NV_PA_CLK_RST_BASE + CLK_RST_XUSBIO_PLL_CFG0); 390 391 debug("< %s()\n", __func__); 392 return 0; 393 } 394 395 static int pcie_phy_disable(struct tegra_xusb_phy *phy) 396 { 397 return 0; 398 } 399 400 static const struct tegra_xusb_phy_ops pcie_phy_ops = { 401 .prepare = phy_prepare, 402 .enable = pcie_phy_enable, 403 .disable = pcie_phy_disable, 404 .unprepare = phy_unprepare, 405 }; 406 407 static struct tegra_xusb_phy tegra210_phys[] = { 408 { 409 .type = TEGRA_XUSB_PADCTL_PCIE, 410 .ops = &pcie_phy_ops, 411 .padctl = &padctl, 412 }, 413 }; 414 415 static const struct tegra_xusb_padctl_soc tegra210_socdata = { 416 .lanes = tegra210_lanes, 417 .num_lanes = ARRAY_SIZE(tegra210_lanes), 418 .functions = tegra210_functions, 419 .num_functions = ARRAY_SIZE(tegra210_functions), 420 .phys = tegra210_phys, 421 .num_phys = ARRAY_SIZE(tegra210_phys), 422 }; 423 424 void tegra_xusb_padctl_init(const void *fdt) 425 { 426 int count, nodes[1]; 427 428 debug("> %s(fdt=%p)\n", __func__, fdt); 429 430 count = fdtdec_find_aliases_for_id(fdt, "padctl", 431 COMPAT_NVIDIA_TEGRA210_XUSB_PADCTL, 432 nodes, ARRAY_SIZE(nodes)); 433 if (tegra_xusb_process_nodes(fdt, nodes, count, &tegra210_socdata)) 434 return; 435 436 debug("< %s()\n", __func__); 437 } 438