drivers/clk/tegra/clk-pll.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (c) 2012, 2013, NVIDIA CORPORATION.  All rights reserved.
   4  */
   5
   6 #include <linux/slab.h>
   7 #include <linux/io.h>
   8 #include <linux/delay.h>
   9 #include <linux/err.h>
  10 #include <linux/clk.h>
  11 #include <linux/clk-provider.h>
  12
  13 #include "clk.h"
  14
  15 #define PLL_BASE_BYPASS BIT(31)
  16 #define PLL_BASE_ENABLE BIT(30)
  17 #define PLL_BASE_REF_ENABLE BIT(29)
  18 #define PLL_BASE_OVERRIDE BIT(28)
  19
  20 #define PLL_BASE_DIVP_SHIFT 20
  21 #define PLL_BASE_DIVP_WIDTH 3
  22 #define PLL_BASE_DIVN_SHIFT 8
  23 #define PLL_BASE_DIVN_WIDTH 10
  24 #define PLL_BASE_DIVM_SHIFT 0
  25 #define PLL_BASE_DIVM_WIDTH 5
  26 #define PLLU_POST_DIVP_MASK 0x1
  27
  28 #define PLL_MISC_DCCON_SHIFT 20
  29 #define PLL_MISC_CPCON_SHIFT 8
  30 #define PLL_MISC_CPCON_WIDTH 4
  31 #define PLL_MISC_CPCON_MASK ((1 << PLL_MISC_CPCON_WIDTH) - 1)
  32 #define PLL_MISC_LFCON_SHIFT 4
  33 #define PLL_MISC_LFCON_WIDTH 4
  34 #define PLL_MISC_LFCON_MASK ((1 << PLL_MISC_LFCON_WIDTH) - 1)
  35 #define PLL_MISC_VCOCON_SHIFT 0
  36 #define PLL_MISC_VCOCON_WIDTH 4
  37 #define PLL_MISC_VCOCON_MASK ((1 << PLL_MISC_VCOCON_WIDTH) - 1)
  38
  39 #define OUT_OF_TABLE_CPCON 8
  40
  41 #define PMC_PLLP_WB0_OVERRIDE 0xf8
  42 #define PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE BIT(12)
  43 #define PMC_PLLP_WB0_OVERRIDE_PLLM_OVERRIDE BIT(11)
  44
  45 #define PLL_POST_LOCK_DELAY 50
  46
  47 #define PLLDU_LFCON_SET_DIVN 600
  48
  49 #define PLLE_BASE_DIVCML_SHIFT 24
  50 #define PLLE_BASE_DIVCML_MASK 0xf
  51 #define PLLE_BASE_DIVP_SHIFT 16
  52 #define PLLE_BASE_DIVP_WIDTH 6
  53 #define PLLE_BASE_DIVN_SHIFT 8
  54 #define PLLE_BASE_DIVN_WIDTH 8
  55 #define PLLE_BASE_DIVM_SHIFT 0
  56 #define PLLE_BASE_DIVM_WIDTH 8
  57 #define PLLE_BASE_ENABLE BIT(31)
  58
  59 #define PLLE_MISC_SETUP_BASE_SHIFT 16
  60 #define PLLE_MISC_SETUP_BASE_MASK (0xffff << PLLE_MISC_SETUP_BASE_SHIFT)
  61 #define PLLE_MISC_LOCK_ENABLE BIT(9)
  62 #define PLLE_MISC_READY BIT(15)
  63 #define PLLE_MISC_SETUP_EX_SHIFT 2
  64 #define PLLE_MISC_SETUP_EX_MASK (3 << PLLE_MISC_SETUP_EX_SHIFT)
  65 #define PLLE_MISC_SETUP_MASK (PLLE_MISC_SETUP_BASE_MASK |       \
  66                               PLLE_MISC_SETUP_EX_MASK)
  67 #define PLLE_MISC_SETUP_VALUE (7 << PLLE_MISC_SETUP_BASE_SHIFT)
  68
  69 #define PLLE_SS_CTRL 0x68
  70 #define PLLE_SS_CNTL_BYPASS_SS BIT(10)
  71 #define PLLE_SS_CNTL_INTERP_RESET BIT(11)
  72 #define PLLE_SS_CNTL_SSC_BYP BIT(12)
  73 #define PLLE_SS_CNTL_CENTER BIT(14)
  74 #define PLLE_SS_CNTL_INVERT BIT(15)
  75 #define PLLE_SS_DISABLE (PLLE_SS_CNTL_BYPASS_SS | PLLE_SS_CNTL_INTERP_RESET |\
  76                                 PLLE_SS_CNTL_SSC_BYP)
  77 #define PLLE_SS_MAX_MASK 0x1ff
  78 #define PLLE_SS_MAX_VAL_TEGRA114 0x25
  79 #define PLLE_SS_MAX_VAL_TEGRA210 0x21
  80 #define PLLE_SS_INC_MASK (0xff << 16)
  81 #define PLLE_SS_INC_VAL (0x1 << 16)
  82 #define PLLE_SS_INCINTRV_MASK (0x3f << 24)
  83 #define PLLE_SS_INCINTRV_VAL_TEGRA114 (0x20 << 24)
  84 #define PLLE_SS_INCINTRV_VAL_TEGRA210 (0x23 << 24)
  85 #define PLLE_SS_COEFFICIENTS_MASK \
  86         (PLLE_SS_MAX_MASK | PLLE_SS_INC_MASK | PLLE_SS_INCINTRV_MASK)
  87 #define PLLE_SS_COEFFICIENTS_VAL_TEGRA114 \
  88         (PLLE_SS_MAX_VAL_TEGRA114 | PLLE_SS_INC_VAL |\
  89          PLLE_SS_INCINTRV_VAL_TEGRA114)
  90 #define PLLE_SS_COEFFICIENTS_VAL_TEGRA210 \
  91         (PLLE_SS_MAX_VAL_TEGRA210 | PLLE_SS_INC_VAL |\
  92          PLLE_SS_INCINTRV_VAL_TEGRA210)
  93
  94 #define PLLE_AUX_PLLP_SEL       BIT(2)
  95 #define PLLE_AUX_USE_LOCKDET    BIT(3)
  96 #define PLLE_AUX_ENABLE_SWCTL   BIT(4)
  97 #define PLLE_AUX_SS_SWCTL       BIT(6)
  98 #define PLLE_AUX_SEQ_ENABLE     BIT(24)
  99 #define PLLE_AUX_SEQ_START_STATE BIT(25)
 100 #define PLLE_AUX_PLLRE_SEL      BIT(28)
 101 #define PLLE_AUX_SS_SEQ_INCLUDE BIT(31)
 102
 103 #define XUSBIO_PLL_CFG0         0x51c
 104 #define XUSBIO_PLL_CFG0_PADPLL_RESET_SWCTL      BIT(0)
 105 #define XUSBIO_PLL_CFG0_CLK_ENABLE_SWCTL        BIT(2)
 106 #define XUSBIO_PLL_CFG0_PADPLL_USE_LOCKDET      BIT(6)
 107 #define XUSBIO_PLL_CFG0_SEQ_ENABLE              BIT(24)
 108 #define XUSBIO_PLL_CFG0_SEQ_START_STATE         BIT(25)
 109
 110 #define SATA_PLL_CFG0           0x490
 111 #define SATA_PLL_CFG0_PADPLL_RESET_SWCTL        BIT(0)
 112 #define SATA_PLL_CFG0_PADPLL_USE_LOCKDET        BIT(2)
 113 #define SATA_PLL_CFG0_SEQ_ENABLE                BIT(24)
 114 #define SATA_PLL_CFG0_SEQ_START_STATE           BIT(25)
 115
 116 #define PLLE_MISC_PLLE_PTS      BIT(8)
 117 #define PLLE_MISC_IDDQ_SW_VALUE BIT(13)
 118 #define PLLE_MISC_IDDQ_SW_CTRL  BIT(14)
 119 #define PLLE_MISC_VREG_BG_CTRL_SHIFT    4
 120 #define PLLE_MISC_VREG_BG_CTRL_MASK     (3 << PLLE_MISC_VREG_BG_CTRL_SHIFT)
 121 #define PLLE_MISC_VREG_CTRL_SHIFT       2
 122 #define PLLE_MISC_VREG_CTRL_MASK        (2 << PLLE_MISC_VREG_CTRL_SHIFT)
 123
 124 #define PLLCX_MISC_STROBE       BIT(31)
 125 #define PLLCX_MISC_RESET        BIT(30)
 126 #define PLLCX_MISC_SDM_DIV_SHIFT 28
 127 #define PLLCX_MISC_SDM_DIV_MASK (0x3 << PLLCX_MISC_SDM_DIV_SHIFT)
 128 #define PLLCX_MISC_FILT_DIV_SHIFT 26
 129 #define PLLCX_MISC_FILT_DIV_MASK (0x3 << PLLCX_MISC_FILT_DIV_SHIFT)
 130 #define PLLCX_MISC_ALPHA_SHIFT 18
 131 #define PLLCX_MISC_DIV_LOW_RANGE \
 132                 ((0x1 << PLLCX_MISC_SDM_DIV_SHIFT) | \
 133                 (0x1 << PLLCX_MISC_FILT_DIV_SHIFT))
 134 #define PLLCX_MISC_DIV_HIGH_RANGE \
 135                 ((0x2 << PLLCX_MISC_SDM_DIV_SHIFT) | \
 136                 (0x2 << PLLCX_MISC_FILT_DIV_SHIFT))
 137 #define PLLCX_MISC_COEF_LOW_RANGE \
 138                 ((0x14 << PLLCX_MISC_KA_SHIFT) | (0x38 << PLLCX_MISC_KB_SHIFT))
 139 #define PLLCX_MISC_KA_SHIFT 2
 140 #define PLLCX_MISC_KB_SHIFT 9
 141 #define PLLCX_MISC_DEFAULT (PLLCX_MISC_COEF_LOW_RANGE | \
 142                             (0x19 << PLLCX_MISC_ALPHA_SHIFT) | \
 143                             PLLCX_MISC_DIV_LOW_RANGE | \
 144                             PLLCX_MISC_RESET)
 145 #define PLLCX_MISC1_DEFAULT 0x000d2308
 146 #define PLLCX_MISC2_DEFAULT 0x30211200
 147 #define PLLCX_MISC3_DEFAULT 0x200
 148
 149 #define PMC_SATA_PWRGT 0x1ac
 150 #define PMC_SATA_PWRGT_PLLE_IDDQ_VALUE BIT(5)
 151 #define PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL BIT(4)
 152
 153 #define PLLSS_MISC_KCP          0
 154 #define PLLSS_MISC_KVCO         0
 155 #define PLLSS_MISC_SETUP        0
 156 #define PLLSS_EN_SDM            0
 157 #define PLLSS_EN_SSC            0
 158 #define PLLSS_EN_DITHER2        0
 159 #define PLLSS_EN_DITHER         1
 160 #define PLLSS_SDM_RESET         0
 161 #define PLLSS_CLAMP             0
 162 #define PLLSS_SDM_SSC_MAX       0
 163 #define PLLSS_SDM_SSC_MIN       0
 164 #define PLLSS_SDM_SSC_STEP      0
 165 #define PLLSS_SDM_DIN           0
 166 #define PLLSS_MISC_DEFAULT ((PLLSS_MISC_KCP << 25) | \
 167                             (PLLSS_MISC_KVCO << 24) | \
 168                             PLLSS_MISC_SETUP)
 169 #define PLLSS_CFG_DEFAULT ((PLLSS_EN_SDM << 31) | \
 170                            (PLLSS_EN_SSC << 30) | \
 171                            (PLLSS_EN_DITHER2 << 29) | \
 172                            (PLLSS_EN_DITHER << 28) | \
 173                            (PLLSS_SDM_RESET) << 27 | \
 174                            (PLLSS_CLAMP << 22))
 175 #define PLLSS_CTRL1_DEFAULT \
 176                         ((PLLSS_SDM_SSC_MAX << 16) | PLLSS_SDM_SSC_MIN)
 177 #define PLLSS_CTRL2_DEFAULT \
 178                         ((PLLSS_SDM_SSC_STEP << 16) | PLLSS_SDM_DIN)
 179 #define PLLSS_LOCK_OVERRIDE     BIT(24)
 180 #define PLLSS_REF_SRC_SEL_SHIFT 25
 181 #define PLLSS_REF_SRC_SEL_MASK  (3 << PLLSS_REF_SRC_SEL_SHIFT)
 182
 183 #define UTMIP_PLL_CFG1 0x484
 184 #define UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(x) (((x) & 0xfff) << 0)
 185 #define UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(x) (((x) & 0x1f) << 27)
 186 #define UTMIP_PLL_CFG1_FORCE_PLL_ACTIVE_POWERDOWN BIT(12)
 187 #define UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN BIT(14)
 188 #define UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERUP BIT(15)
 189 #define UTMIP_PLL_CFG1_FORCE_PLLU_POWERDOWN BIT(16)
 190 #define UTMIP_PLL_CFG1_FORCE_PLLU_POWERUP BIT(17)
 191
 192 #define UTMIP_PLL_CFG2 0x488
 193 #define UTMIP_PLL_CFG2_STABLE_COUNT(x) (((x) & 0xfff) << 6)
 194 #define UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(x) (((x) & 0x3f) << 18)
 195 #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERDOWN BIT(0)
 196 #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERUP BIT(1)
 197 #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERDOWN BIT(2)
 198 #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERUP BIT(3)
 199 #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERDOWN BIT(4)
 200 #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERUP BIT(5)
 201 #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_D_POWERDOWN BIT(24)
 202 #define UTMIP_PLL_CFG2_FORCE_PD_SAMP_D_POWERUP BIT(25)
 203 #define UTMIP_PLL_CFG2_PHY_XTAL_CLOCKEN BIT(30)
 204
 205 #define UTMIPLL_HW_PWRDN_CFG0 0x52c
 206 #define UTMIPLL_HW_PWRDN_CFG0_IDDQ_SWCTL BIT(0)
 207 #define UTMIPLL_HW_PWRDN_CFG0_IDDQ_OVERRIDE BIT(1)
 208 #define UTMIPLL_HW_PWRDN_CFG0_CLK_ENABLE_SWCTL BIT(2)
 209 #define UTMIPLL_HW_PWRDN_CFG0_SEQ_IN_SWCTL BIT(4)
 210 #define UTMIPLL_HW_PWRDN_CFG0_SEQ_RESET_INPUT_VALUE BIT(5)
 211 #define UTMIPLL_HW_PWRDN_CFG0_USE_LOCKDET BIT(6)
 212 #define UTMIPLL_HW_PWRDN_CFG0_SEQ_ENABLE BIT(24)
 213 #define UTMIPLL_HW_PWRDN_CFG0_SEQ_START_STATE BIT(25)
 214
 215 #define PLLU_HW_PWRDN_CFG0 0x530
 216 #define PLLU_HW_PWRDN_CFG0_CLK_SWITCH_SWCTL BIT(0)
 217 #define PLLU_HW_PWRDN_CFG0_CLK_ENABLE_SWCTL BIT(2)
 218 #define PLLU_HW_PWRDN_CFG0_USE_LOCKDET BIT(6)
 219 #define PLLU_HW_PWRDN_CFG0_USE_SWITCH_DETECT BIT(7)
 220 #define PLLU_HW_PWRDN_CFG0_SEQ_ENABLE BIT(24)
 221 #define PLLU_HW_PWRDN_CFG0_IDDQ_PD_INCLUDE BIT(28)
 222
 223 #define XUSB_PLL_CFG0 0x534
 224 #define XUSB_PLL_CFG0_UTMIPLL_LOCK_DLY 0x3ff
 225 #define XUSB_PLL_CFG0_PLLU_LOCK_DLY (0x3ff << 14)
 226
 227 #define PLLU_BASE_CLKENABLE_USB BIT(21)
 228 #define PLLU_BASE_OVERRIDE BIT(24)
 229
 230 #define pll_readl(offset, p) readl_relaxed(p->clk_base + offset)
 231 #define pll_readl_base(p) pll_readl(p->params->base_reg, p)
 232 #define pll_readl_misc(p) pll_readl(p->params->misc_reg, p)
 233 #define pll_override_readl(offset, p) readl_relaxed(p->pmc + offset)
 234 #define pll_readl_sdm_din(p) pll_readl(p->params->sdm_din_reg, p)
 235 #define pll_readl_sdm_ctrl(p) pll_readl(p->params->sdm_ctrl_reg, p)
 236
 237 #define pll_writel(val, offset, p) writel_relaxed(val, p->clk_base + offset)
 238 #define pll_writel_base(val, p) pll_writel(val, p->params->base_reg, p)
 239 #define pll_writel_misc(val, p) pll_writel(val, p->params->misc_reg, p)
 240 #define pll_override_writel(val, offset, p) writel(val, p->pmc + offset)
 241 #define pll_writel_sdm_din(val, p) pll_writel(val, p->params->sdm_din_reg, p)
 242 #define pll_writel_sdm_ctrl(val, p) pll_writel(val, p->params->sdm_ctrl_reg, p)
 243
 244 #define mask(w) ((1 << (w)) - 1)
 245 #define divm_mask(p) mask(p->params->div_nmp->divm_width)
 246 #define divn_mask(p) mask(p->params->div_nmp->divn_width)
 247 #define divp_mask(p) (p->params->flags & TEGRA_PLLU ? PLLU_POST_DIVP_MASK :\
 248                       mask(p->params->div_nmp->divp_width))
 249 #define sdm_din_mask(p) p->params->sdm_din_mask
 250 #define sdm_en_mask(p) p->params->sdm_ctrl_en_mask
 251
 252 #define divm_shift(p) (p)->params->div_nmp->divm_shift
 253 #define divn_shift(p) (p)->params->div_nmp->divn_shift
 254 #define divp_shift(p) (p)->params->div_nmp->divp_shift
 255
 256 #define divm_mask_shifted(p) (divm_mask(p) << divm_shift(p))
 257 #define divn_mask_shifted(p) (divn_mask(p) << divn_shift(p))
 258 #define divp_mask_shifted(p) (divp_mask(p) << divp_shift(p))
 259
 260 #define divm_max(p) (divm_mask(p))
 261 #define divn_max(p) (divn_mask(p))
 262 #define divp_max(p) (1 << (divp_mask(p)))
 263
 264 #define sdin_din_to_data(din)   ((u16)((din) ? : 0xFFFFU))
 265 #define sdin_data_to_din(dat)   (((dat) == 0xFFFFU) ? 0 : (s16)dat)
 266
 267 static struct div_nmp default_nmp = {
 268         .divn_shift = PLL_BASE_DIVN_SHIFT,
 269         .divn_width = PLL_BASE_DIVN_WIDTH,
 270         .divm_shift = PLL_BASE_DIVM_SHIFT,
 271         .divm_width = PLL_BASE_DIVM_WIDTH,
 272         .divp_shift = PLL_BASE_DIVP_SHIFT,
 273         .divp_width = PLL_BASE_DIVP_WIDTH,
 274 };
 275
 276 static void clk_pll_enable_lock(struct tegra_clk_pll *pll)
 277 {
 278         u32 val;
 279
 280         if (!(pll->params->flags & TEGRA_PLL_USE_LOCK))
 281                 return;
 282
 283         if (!(pll->params->flags & TEGRA_PLL_HAS_LOCK_ENABLE))
 284                 return;
 285
 286         val = pll_readl_misc(pll);
 287         val |= BIT(pll->params->lock_enable_bit_idx);
 288         pll_writel_misc(val, pll);
 289 }
 290
 291 static int clk_pll_wait_for_lock(struct tegra_clk_pll *pll)
 292 {
 293         int i;
 294         u32 val, lock_mask;
 295         void __iomem *lock_addr;
 296
 297         if (!(pll->params->flags & TEGRA_PLL_USE_LOCK)) {
 298                 udelay(pll->params->lock_delay);
 299                 return 0;
 300         }
 301
 302         lock_addr = pll->clk_base;
 303         if (pll->params->flags & TEGRA_PLL_LOCK_MISC)
 304                 lock_addr += pll->params->misc_reg;
 305         else
 306                 lock_addr += pll->params->base_reg;
 307
 308         lock_mask = pll->params->lock_mask;
 309
 310         for (i = 0; i < pll->params->lock_delay; i++) {
 311                 val = readl_relaxed(lock_addr);
 312                 if ((val & lock_mask) == lock_mask) {
 313                         udelay(PLL_POST_LOCK_DELAY);
 314                         return 0;
 315                 }
 316                 udelay(2); /* timeout = 2 * lock time */
 317         }
 318
 319         pr_err("%s: Timed out waiting for pll %s lock\n", __func__,
 320                clk_hw_get_name(&pll->hw));
 321
 322         return -1;
 323 }
 324
 325 int tegra_pll_wait_for_lock(struct tegra_clk_pll *pll)
 326 {
 327         return clk_pll_wait_for_lock(pll);
 328 }
 329
 330 static bool pllm_clk_is_gated_by_pmc(struct tegra_clk_pll *pll)
 331 {
 332         u32 val = readl_relaxed(pll->pmc + PMC_PLLP_WB0_OVERRIDE);
 333
 334         return (val & PMC_PLLP_WB0_OVERRIDE_PLLM_OVERRIDE) &&
 335               !(val & PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE);
 336 }
 337
 338 static int clk_pll_is_enabled(struct clk_hw *hw)
 339 {
 340         struct tegra_clk_pll *pll = to_clk_pll(hw);
 341         u32 val;
 342
 343         /*
 344          * Power Management Controller (PMC) can override the PLLM clock
 345          * settings, including the enable-state. The PLLM is enabled when
 346          * PLLM's CaR state is ON and when PLLM isn't gated by PMC.
 347          */
 348         if ((pll->params->flags & TEGRA_PLLM) && pllm_clk_is_gated_by_pmc(pll))
 349                 return 0;
 350
 351         val = pll_readl_base(pll);
 352
 353         return val & PLL_BASE_ENABLE ? 1 : 0;
 354 }
 355
 356 static void _clk_pll_enable(struct clk_hw *hw)
 357 {
 358         struct tegra_clk_pll *pll = to_clk_pll(hw);
 359         u32 val;
 360
 361         if (pll->params->iddq_reg) {
 362                 val = pll_readl(pll->params->iddq_reg, pll);
 363                 val &= ~BIT(pll->params->iddq_bit_idx);
 364                 pll_writel(val, pll->params->iddq_reg, pll);
 365                 udelay(5);
 366         }
 367
 368         if (pll->params->reset_reg) {
 369                 val = pll_readl(pll->params->reset_reg, pll);
 370                 val &= ~BIT(pll->params->reset_bit_idx);
 371                 pll_writel(val, pll->params->reset_reg, pll);
 372         }
 373
 374         clk_pll_enable_lock(pll);
 375
 376         val = pll_readl_base(pll);
 377         if (pll->params->flags & TEGRA_PLL_BYPASS)
 378                 val &= ~PLL_BASE_BYPASS;
 379         val |= PLL_BASE_ENABLE;
 380         pll_writel_base(val, pll);
 381
 382         if (pll->params->flags & TEGRA_PLLM) {
 383                 val = readl_relaxed(pll->pmc + PMC_PLLP_WB0_OVERRIDE);
 384                 val |= PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE;
 385                 writel_relaxed(val, pll->pmc + PMC_PLLP_WB0_OVERRIDE);
 386         }
 387 }
 388
 389 static void _clk_pll_disable(struct clk_hw *hw)
 390 {
 391         struct tegra_clk_pll *pll = to_clk_pll(hw);
 392         u32 val;
 393
 394         val = pll_readl_base(pll);
 395         if (pll->params->flags & TEGRA_PLL_BYPASS)
 396                 val &= ~PLL_BASE_BYPASS;
 397         val &= ~PLL_BASE_ENABLE;
 398         pll_writel_base(val, pll);
 399
 400         if (pll->params->flags & TEGRA_PLLM) {
 401                 val = readl_relaxed(pll->pmc + PMC_PLLP_WB0_OVERRIDE);
 402                 val &= ~PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE;
 403                 writel_relaxed(val, pll->pmc + PMC_PLLP_WB0_OVERRIDE);
 404         }
 405
 406         if (pll->params->reset_reg) {
 407                 val = pll_readl(pll->params->reset_reg, pll);
 408                 val |= BIT(pll->params->reset_bit_idx);
 409                 pll_writel(val, pll->params->reset_reg, pll);
 410         }
 411
 412         if (pll->params->iddq_reg) {
 413                 val = pll_readl(pll->params->iddq_reg, pll);
 414                 val |= BIT(pll->params->iddq_bit_idx);
 415                 pll_writel(val, pll->params->iddq_reg, pll);
 416                 udelay(2);
 417         }
 418 }
 419
 420 static void pll_clk_start_ss(struct tegra_clk_pll *pll)
 421 {
 422         if (pll->params->defaults_set && pll->params->ssc_ctrl_reg) {
 423                 u32 val = pll_readl(pll->params->ssc_ctrl_reg, pll);
 424
 425                 val |= pll->params->ssc_ctrl_en_mask;
 426                 pll_writel(val, pll->params->ssc_ctrl_reg, pll);
 427         }
 428 }
 429
 430 static void pll_clk_stop_ss(struct tegra_clk_pll *pll)
 431 {
 432         if (pll->params->defaults_set && pll->params->ssc_ctrl_reg) {
 433                 u32 val = pll_readl(pll->params->ssc_ctrl_reg, pll);
 434
 435                 val &= ~pll->params->ssc_ctrl_en_mask;
 436                 pll_writel(val, pll->params->ssc_ctrl_reg, pll);
 437         }
 438 }
 439
 440 static int clk_pll_enable(struct clk_hw *hw)
 441 {
 442         struct tegra_clk_pll *pll = to_clk_pll(hw);
 443         unsigned long flags = 0;
 444         int ret;
 445
 446         if (clk_pll_is_enabled(hw))
 447                 return 0;
 448
 449         if (pll->lock)
 450                 spin_lock_irqsave(pll->lock, flags);
 451
 452         _clk_pll_enable(hw);
 453
 454         ret = clk_pll_wait_for_lock(pll);
 455
 456         pll_clk_start_ss(pll);
 457
 458         if (pll->lock)
 459                 spin_unlock_irqrestore(pll->lock, flags);
 460
 461         return ret;
 462 }
 463
 464 static void clk_pll_disable(struct clk_hw *hw)
 465 {
 466         struct tegra_clk_pll *pll = to_clk_pll(hw);
 467         unsigned long flags = 0;
 468
 469         if (pll->lock)
 470                 spin_lock_irqsave(pll->lock, flags);
 471
 472         pll_clk_stop_ss(pll);
 473
 474         _clk_pll_disable(hw);
 475
 476         if (pll->lock)
 477                 spin_unlock_irqrestore(pll->lock, flags);
 478 }
 479
 480 static int _p_div_to_hw(struct clk_hw *hw, u8 p_div)
 481 {
 482         struct tegra_clk_pll *pll = to_clk_pll(hw);
 483         const struct pdiv_map *p_tohw = pll->params->pdiv_tohw;
 484
 485         if (p_tohw) {
 486                 while (p_tohw->pdiv) {
 487                         if (p_div <= p_tohw->pdiv)
 488                                 return p_tohw->hw_val;
 489                         p_tohw++;
 490                 }
 491                 return -EINVAL;
 492         }
 493         return -EINVAL;
 494 }
 495
 496 int tegra_pll_p_div_to_hw(struct tegra_clk_pll *pll, u8 p_div)
 497 {
 498         return _p_div_to_hw(&pll->hw, p_div);
 499 }
 500
 501 static int _hw_to_p_div(struct clk_hw *hw, u8 p_div_hw)
 502 {
 503         struct tegra_clk_pll *pll = to_clk_pll(hw);
 504         const struct pdiv_map *p_tohw = pll->params->pdiv_tohw;
 505
 506         if (p_tohw) {
 507                 while (p_tohw->pdiv) {
 508                         if (p_div_hw == p_tohw->hw_val)
 509                                 return p_tohw->pdiv;
 510                         p_tohw++;
 511                 }
 512                 return -EINVAL;
 513         }
 514
 515         return 1 << p_div_hw;
 516 }
 517
 518 static int _get_table_rate(struct clk_hw *hw,
 519                            struct tegra_clk_pll_freq_table *cfg,
 520                            unsigned long rate, unsigned long parent_rate)
 521 {
 522         struct tegra_clk_pll *pll = to_clk_pll(hw);
 523         struct tegra_clk_pll_freq_table *sel;
 524         int p;
 525
 526         for (sel = pll->params->freq_table; sel->input_rate != 0; sel++)
 527                 if (sel->input_rate == parent_rate &&
 528                     sel->output_rate == rate)
 529                         break;
 530
 531         if (sel->input_rate == 0)
 532                 return -EINVAL;
 533
 534         if (pll->params->pdiv_tohw) {
 535                 p = _p_div_to_hw(hw, sel->p);
 536                 if (p < 0)
 537                         return p;
 538         } else {
 539                 p = ilog2(sel->p);
 540         }
 541
 542         cfg->input_rate = sel->input_rate;
 543         cfg->output_rate = sel->output_rate;
 544         cfg->m = sel->m;
 545         cfg->n = sel->n;
 546         cfg->p = p;
 547         cfg->cpcon = sel->cpcon;
 548         cfg->sdm_data = sel->sdm_data;
 549
 550         return 0;
 551 }
 552
 553 static int _calc_rate(struct clk_hw *hw, struct tegra_clk_pll_freq_table *cfg,
 554                       unsigned long rate, unsigned long parent_rate)
 555 {
 556         struct tegra_clk_pll *pll = to_clk_pll(hw);
 557         unsigned long cfreq;
 558         u32 p_div = 0;
 559         int ret;
 560
 561         switch (parent_rate) {
 562         case 12000000:
 563         case 26000000:
 564                 cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2000000;
 565                 break;
 566         case 13000000:
 567                 cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2600000;
 568                 break;
 569         case 16800000:
 570         case 19200000:
 571                 cfreq = (rate <= 1200000 * 1000) ? 1200000 : 2400000;
 572                 break;
 573         case 9600000:
 574         case 28800000:
 575                 /*
 576                  * PLL_P_OUT1 rate is not listed in PLLA table
 577                  */
 578                 cfreq = parent_rate / (parent_rate / 1000000);
 579                 break;
 580         default:
 581                 pr_err("%s Unexpected reference rate %lu\n",
 582                        __func__, parent_rate);
 583                 BUG();
 584         }
 585
 586         /* Raise VCO to guarantee 0.5% accuracy */
 587         for (cfg->output_rate = rate; cfg->output_rate < 200 * cfreq;
 588              cfg->output_rate <<= 1)
 589                 p_div++;
 590
 591         cfg->m = parent_rate / cfreq;
 592         cfg->n = cfg->output_rate / cfreq;
 593         cfg->cpcon = OUT_OF_TABLE_CPCON;
 594
 595         if (cfg->m == 0 || cfg->m > divm_max(pll) ||
 596             cfg->n > divn_max(pll) || (1 << p_div) > divp_max(pll) ||
 597             cfg->output_rate > pll->params->vco_max) {
 598                 return -EINVAL;
 599         }
 600
 601         cfg->output_rate = cfg->n * DIV_ROUND_UP(parent_rate, cfg->m);
 602         cfg->output_rate >>= p_div;
 603
 604         if (pll->params->pdiv_tohw) {
 605                 ret = _p_div_to_hw(hw, 1 << p_div);
 606                 if (ret < 0)
 607                         return ret;
 608                 else
 609                         cfg->p = ret;
 610         } else
 611                 cfg->p = p_div;
 612
 613         return 0;
 614 }
 615
 616 /*
 617  * SDM (Sigma Delta Modulator) divisor is 16-bit 2's complement signed number
 618  * within (-2^12 ... 2^12-1) range. Represented in PLL data structure as
 619  * unsigned 16-bit value, with "0" divisor mapped to 0xFFFF. Data "0" is used
 620  * to indicate that SDM is disabled.
 621  *
 622  * Effective ndiv value when SDM is enabled: ndiv + 1/2 + sdm_din/2^13
 623  */
 624 static void clk_pll_set_sdm_data(struct clk_hw *hw,
 625                                  struct tegra_clk_pll_freq_table *cfg)
 626 {
 627         struct tegra_clk_pll *pll = to_clk_pll(hw);
 628         u32 val;
 629         bool enabled;
 630
 631         if (!pll->params->sdm_din_reg)
 632                 return;
 633
 634         if (cfg->sdm_data) {
 635                 val = pll_readl_sdm_din(pll) & (~sdm_din_mask(pll));
 636                 val |= sdin_data_to_din(cfg->sdm_data) & sdm_din_mask(pll);
 637                 pll_writel_sdm_din(val, pll);
 638         }
 639
 640         val = pll_readl_sdm_ctrl(pll);
 641         enabled = (val & sdm_en_mask(pll));
 642
 643         if (cfg->sdm_data == 0 && enabled)
 644                 val &= ~pll->params->sdm_ctrl_en_mask;
 645
 646         if (cfg->sdm_data != 0 && !enabled)
 647                 val |= pll->params->sdm_ctrl_en_mask;
 648
 649         pll_writel_sdm_ctrl(val, pll);
 650 }
 651
 652 static void _update_pll_mnp(struct tegra_clk_pll *pll,
 653                             struct tegra_clk_pll_freq_table *cfg)
 654 {
 655         u32 val;
 656         struct tegra_clk_pll_params *params = pll->params;
 657         struct div_nmp *div_nmp = params->div_nmp;
 658
 659         if ((params->flags & (TEGRA_PLLM | TEGRA_PLLMB)) &&
 660                 (pll_override_readl(PMC_PLLP_WB0_OVERRIDE, pll) &
 661                         PMC_PLLP_WB0_OVERRIDE_PLLM_OVERRIDE)) {
 662                 val = pll_override_readl(params->pmc_divp_reg, pll);
 663                 val &= ~(divp_mask(pll) << div_nmp->override_divp_shift);
 664                 val |= cfg->p << div_nmp->override_divp_shift;
 665                 pll_override_writel(val, params->pmc_divp_reg, pll);
 666
 667                 val = pll_override_readl(params->pmc_divnm_reg, pll);
 668                 val &= ~((divm_mask(pll) << div_nmp->override_divm_shift) |
 669                         (divn_mask(pll) << div_nmp->override_divn_shift));
 670                 val |= (cfg->m << div_nmp->override_divm_shift) |
 671                         (cfg->n << div_nmp->override_divn_shift);
 672                 pll_override_writel(val, params->pmc_divnm_reg, pll);
 673         } else {
 674                 val = pll_readl_base(pll);
 675
 676                 val &= ~(divm_mask_shifted(pll) | divn_mask_shifted(pll) |
 677                          divp_mask_shifted(pll));
 678
 679                 val |= (cfg->m << divm_shift(pll)) |
 680                        (cfg->n << divn_shift(pll)) |
 681                        (cfg->p << divp_shift(pll));
 682
 683                 pll_writel_base(val, pll);
 684
 685                 clk_pll_set_sdm_data(&pll->hw, cfg);
 686         }
 687 }
 688
 689 static void _get_pll_mnp(struct tegra_clk_pll *pll,
 690                          struct tegra_clk_pll_freq_table *cfg)
 691 {
 692         u32 val;
 693         struct tegra_clk_pll_params *params = pll->params;
 694         struct div_nmp *div_nmp = params->div_nmp;
 695
 696         *cfg = (struct tegra_clk_pll_freq_table) { };
 697
 698         if ((params->flags & (TEGRA_PLLM | TEGRA_PLLMB)) &&
 699                 (pll_override_readl(PMC_PLLP_WB0_OVERRIDE, pll) &
 700                         PMC_PLLP_WB0_OVERRIDE_PLLM_OVERRIDE)) {
 701                 val = pll_override_readl(params->pmc_divp_reg, pll);
 702                 cfg->p = (val >> div_nmp->override_divp_shift) & divp_mask(pll);
 703
 704                 val = pll_override_readl(params->pmc_divnm_reg, pll);
 705                 cfg->m = (val >> div_nmp->override_divm_shift) & divm_mask(pll);
 706                 cfg->n = (val >> div_nmp->override_divn_shift) & divn_mask(pll);
 707         }  else {
 708                 val = pll_readl_base(pll);
 709
 710                 cfg->m = (val >> div_nmp->divm_shift) & divm_mask(pll);
 711                 cfg->n = (val >> div_nmp->divn_shift) & divn_mask(pll);
 712                 cfg->p = (val >> div_nmp->divp_shift) & divp_mask(pll);
 713
 714                 if (pll->params->sdm_din_reg) {
 715                         if (sdm_en_mask(pll) & pll_readl_sdm_ctrl(pll)) {
 716                                 val = pll_readl_sdm_din(pll);
 717                                 val &= sdm_din_mask(pll);
 718                                 cfg->sdm_data = sdin_din_to_data(val);
 719                         }
 720                 }
 721         }
 722 }
 723
 724 static void _update_pll_cpcon(struct tegra_clk_pll *pll,
 725                               struct tegra_clk_pll_freq_table *cfg,
 726                               unsigned long rate)
 727 {
 728         u32 val;
 729
 730         val = pll_readl_misc(pll);
 731
 732         val &= ~(PLL_MISC_CPCON_MASK << PLL_MISC_CPCON_SHIFT);
 733         val |= cfg->cpcon << PLL_MISC_CPCON_SHIFT;
 734
 735         if (pll->params->flags & TEGRA_PLL_SET_LFCON) {
 736                 val &= ~(PLL_MISC_LFCON_MASK << PLL_MISC_LFCON_SHIFT);
 737                 if (cfg->n >= PLLDU_LFCON_SET_DIVN)
 738                         val |= 1 << PLL_MISC_LFCON_SHIFT;
 739         } else if (pll->params->flags & TEGRA_PLL_SET_DCCON) {
 740                 val &= ~(1 << PLL_MISC_DCCON_SHIFT);
 741                 if (rate >= (pll->params->vco_max >> 1))
 742                         val |= 1 << PLL_MISC_DCCON_SHIFT;
 743         }
 744
 745         pll_writel_misc(val, pll);
 746 }
 747
 748 static int _program_pll(struct clk_hw *hw, struct tegra_clk_pll_freq_table *cfg,
 749                         unsigned long rate)
 750 {
 751         struct tegra_clk_pll *pll = to_clk_pll(hw);
 752         struct tegra_clk_pll_freq_table old_cfg;
 753         int state, ret = 0;
 754
 755         state = clk_pll_is_enabled(hw);
 756
 757         if (state && pll->params->pre_rate_change) {
 758                 ret = pll->params->pre_rate_change();
 759                 if (WARN_ON(ret))
 760                         return ret;
 761         }
 762
 763         _get_pll_mnp(pll, &old_cfg);
 764
 765         if (state && pll->params->defaults_set && pll->params->dyn_ramp &&
 766                         (cfg->m == old_cfg.m) && (cfg->p == old_cfg.p)) {
 767                 ret = pll->params->dyn_ramp(pll, cfg);
 768                 if (!ret)
 769                         goto done;
 770         }
 771
 772         if (state) {
 773                 pll_clk_stop_ss(pll);
 774                 _clk_pll_disable(hw);
 775         }
 776
 777         if (!pll->params->defaults_set && pll->params->set_defaults)
 778                 pll->params->set_defaults(pll);
 779
 780         _update_pll_mnp(pll, cfg);
 781
 782         if (pll->params->flags & TEGRA_PLL_HAS_CPCON)
 783                 _update_pll_cpcon(pll, cfg, rate);
 784
 785         if (state) {
 786                 _clk_pll_enable(hw);
 787                 ret = clk_pll_wait_for_lock(pll);
 788                 pll_clk_start_ss(pll);
 789         }
 790
 791 done:
 792         if (state && pll->params->post_rate_change)
 793                 pll->params->post_rate_change();
 794
 795         return ret;
 796 }
 797
 798 static int clk_pll_set_rate(struct clk_hw *hw, unsigned long rate,
 799                         unsigned long parent_rate)
 800 {
 801         struct tegra_clk_pll *pll = to_clk_pll(hw);
 802         struct tegra_clk_pll_freq_table cfg, old_cfg;
 803         unsigned long flags = 0;
 804         int ret = 0;
 805
 806         if (pll->params->flags & TEGRA_PLL_FIXED) {
 807                 if (rate != pll->params->fixed_rate) {
 808                         pr_err("%s: Can not change %s fixed rate %lu to %lu\n",
 809                                 __func__, clk_hw_get_name(hw),
 810                                 pll->params->fixed_rate, rate);
 811                         return -EINVAL;
 812                 }
 813                 return 0;
 814         }
 815
 816         if (_get_table_rate(hw, &cfg, rate, parent_rate) &&
 817             pll->params->calc_rate(hw, &cfg, rate, parent_rate)) {
 818                 pr_err("%s: Failed to set %s rate %lu\n", __func__,
 819                        clk_hw_get_name(hw), rate);
 820                 WARN_ON(1);
 821                 return -EINVAL;
 822         }
 823         if (pll->lock)
 824                 spin_lock_irqsave(pll->lock, flags);
 825
 826         _get_pll_mnp(pll, &old_cfg);
 827         if (pll->params->flags & TEGRA_PLL_VCO_OUT)
 828                 cfg.p = old_cfg.p;
 829
 830         if (old_cfg.m != cfg.m || old_cfg.n != cfg.n || old_cfg.p != cfg.p ||
 831                 old_cfg.sdm_data != cfg.sdm_data)
 832                 ret = _program_pll(hw, &cfg, rate);
 833
 834         if (pll->lock)
 835                 spin_unlock_irqrestore(pll->lock, flags);
 836
 837         return ret;
 838 }
 839
 840 static long clk_pll_round_rate(struct clk_hw *hw, unsigned long rate,
 841                         unsigned long *prate)
 842 {
 843         struct tegra_clk_pll *pll = to_clk_pll(hw);
 844         struct tegra_clk_pll_freq_table cfg;
 845
 846         if (pll->params->flags & TEGRA_PLL_FIXED) {
 847                 /* PLLM/MB are used for memory; we do not change rate */
 848                 if (pll->params->flags & (TEGRA_PLLM | TEGRA_PLLMB))
 849                         return clk_hw_get_rate(hw);
 850                 return pll->params->fixed_rate;
 851         }
 852
 853         if (_get_table_rate(hw, &cfg, rate, *prate) &&
 854             pll->params->calc_rate(hw, &cfg, rate, *prate))
 855                 return -EINVAL;
 856
 857         return cfg.output_rate;
 858 }
 859
 860 static unsigned long clk_pll_recalc_rate(struct clk_hw *hw,
 861                                          unsigned long parent_rate)
 862 {
 863         struct tegra_clk_pll *pll = to_clk_pll(hw);
 864         struct tegra_clk_pll_freq_table cfg;
 865         u32 val;
 866         u64 rate = parent_rate;
 867         int pdiv;
 868
 869         val = pll_readl_base(pll);
 870
 871         if ((pll->params->flags & TEGRA_PLL_BYPASS) && (val & PLL_BASE_BYPASS))
 872                 return parent_rate;
 873
 874         if ((pll->params->flags & TEGRA_PLL_FIXED) &&
 875             !(pll->params->flags & (TEGRA_PLLM | TEGRA_PLLMB)) &&
 876                         !(val & PLL_BASE_OVERRIDE)) {
 877                 struct tegra_clk_pll_freq_table sel;
 878                 if (_get_table_rate(hw, &sel, pll->params->fixed_rate,
 879                                         parent_rate)) {
 880                         pr_err("Clock %s has unknown fixed frequency\n",
 881                                clk_hw_get_name(hw));
 882                         BUG();
 883                 }
 884                 return pll->params->fixed_rate;
 885         }
 886
 887         _get_pll_mnp(pll, &cfg);
 888
 889         if (pll->params->flags & TEGRA_PLL_VCO_OUT) {
 890                 pdiv = 1;
 891         } else {
 892                 pdiv = _hw_to_p_div(hw, cfg.p);
 893                 if (pdiv < 0) {
 894                         WARN(1, "Clock %s has invalid pdiv value : 0x%x\n",
 895                              clk_hw_get_name(hw), cfg.p);
 896                         pdiv = 1;
 897                 }
 898         }
 899
 900         if (pll->params->set_gain)
 901                 pll->params->set_gain(&cfg);
 902
 903         cfg.m *= pdiv;
 904
 905         rate *= cfg.n;
 906         do_div(rate, cfg.m);
 907
 908         return rate;
 909 }
 910
 911 static int clk_plle_training(struct tegra_clk_pll *pll)
 912 {
 913         u32 val;
 914         unsigned long timeout;
 915
 916         if (!pll->pmc)
 917                 return -ENOSYS;
 918
 919         /*
 920          * PLLE is already disabled, and setup cleared;
 921          * create falling edge on PLLE IDDQ input.
 922          */
 923         val = readl(pll->pmc + PMC_SATA_PWRGT);
 924         val |= PMC_SATA_PWRGT_PLLE_IDDQ_VALUE;
 925         writel(val, pll->pmc + PMC_SATA_PWRGT);
 926
 927         val = readl(pll->pmc + PMC_SATA_PWRGT);
 928         val |= PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL;
 929         writel(val, pll->pmc + PMC_SATA_PWRGT);
 930
 931         val = readl(pll->pmc + PMC_SATA_PWRGT);
 932         val &= ~PMC_SATA_PWRGT_PLLE_IDDQ_VALUE;
 933         writel(val, pll->pmc + PMC_SATA_PWRGT);
 934
 935         val = pll_readl_misc(pll);
 936
 937         timeout = jiffies + msecs_to_jiffies(100);
 938         while (1) {
 939                 val = pll_readl_misc(pll);
 940                 if (val & PLLE_MISC_READY)
 941                         break;
 942                 if (time_after(jiffies, timeout)) {
 943                         pr_err("%s: timeout waiting for PLLE\n", __func__);
 944                         return -EBUSY;
 945                 }
 946                 udelay(300);
 947         }
 948
 949         return 0;
 950 }
 951
 952 static int clk_plle_enable(struct clk_hw *hw)
 953 {
 954         struct tegra_clk_pll *pll = to_clk_pll(hw);
 955         struct tegra_clk_pll_freq_table sel;
 956         unsigned long input_rate;
 957         u32 val;
 958         int err;
 959
 960         if (clk_pll_is_enabled(hw))
 961                 return 0;
 962
 963         input_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
 964
 965         if (_get_table_rate(hw, &sel, pll->params->fixed_rate, input_rate))
 966                 return -EINVAL;
 967
 968         clk_pll_disable(hw);
 969
 970         val = pll_readl_misc(pll);
 971         val &= ~(PLLE_MISC_LOCK_ENABLE | PLLE_MISC_SETUP_MASK);
 972         pll_writel_misc(val, pll);
 973
 974         val = pll_readl_misc(pll);
 975         if (!(val & PLLE_MISC_READY)) {
 976                 err = clk_plle_training(pll);
 977                 if (err)
 978                         return err;
 979         }
 980
 981         if (pll->params->flags & TEGRA_PLLE_CONFIGURE) {
 982                 /* configure dividers */
 983                 val = pll_readl_base(pll);
 984                 val &= ~(divp_mask_shifted(pll) | divn_mask_shifted(pll) |
 985                          divm_mask_shifted(pll));
 986                 val &= ~(PLLE_BASE_DIVCML_MASK << PLLE_BASE_DIVCML_SHIFT);
 987                 val |= sel.m << divm_shift(pll);
 988                 val |= sel.n << divn_shift(pll);
 989                 val |= sel.p << divp_shift(pll);
 990                 val |= sel.cpcon << PLLE_BASE_DIVCML_SHIFT;
 991                 pll_writel_base(val, pll);
 992         }
 993
 994         val = pll_readl_misc(pll);
 995         val |= PLLE_MISC_SETUP_VALUE;
 996         val |= PLLE_MISC_LOCK_ENABLE;
 997         pll_writel_misc(val, pll);
 998
 999         val = readl(pll->clk_base + PLLE_SS_CTRL);
1000         val &= ~PLLE_SS_COEFFICIENTS_MASK;
1001         val |= PLLE_SS_DISABLE;
1002         writel(val, pll->clk_base + PLLE_SS_CTRL);
1003
1004         val = pll_readl_base(pll);
1005         val |= (PLL_BASE_BYPASS | PLL_BASE_ENABLE);
1006         pll_writel_base(val, pll);
1007
1008         clk_pll_wait_for_lock(pll);
1009
1010         return 0;
1011 }
1012
1013 static unsigned long clk_plle_recalc_rate(struct clk_hw *hw,
1014                                          unsigned long parent_rate)
1015 {
1016         struct tegra_clk_pll *pll = to_clk_pll(hw);
1017         u32 val = pll_readl_base(pll);
1018         u32 divn = 0, divm = 0, divp = 0;
1019         u64 rate = parent_rate;
1020
1021         divp = (val >> pll->params->div_nmp->divp_shift) & (divp_mask(pll));
1022         divn = (val >> pll->params->div_nmp->divn_shift) & (divn_mask(pll));
1023         divm = (val >> pll->params->div_nmp->divm_shift) & (divm_mask(pll));
1024         divm *= divp;
1025
1026         rate *= divn;
1027         do_div(rate, divm);
1028         return rate;
1029 }
1030
1031 static void tegra_clk_pll_restore_context(struct clk_hw *hw)
1032 {
1033         struct tegra_clk_pll *pll = to_clk_pll(hw);
1034         struct clk_hw *parent = clk_hw_get_parent(hw);
1035         unsigned long parent_rate = clk_hw_get_rate(parent);
1036         unsigned long rate = clk_hw_get_rate(hw);
1037
1038         if (clk_pll_is_enabled(hw))
1039                 return;
1040
1041         if (pll->params->set_defaults)
1042                 pll->params->set_defaults(pll);
1043
1044         clk_pll_set_rate(hw, rate, parent_rate);
1045
1046         if (!__clk_get_enable_count(hw->clk))
1047                 clk_pll_disable(hw);
1048         else
1049                 clk_pll_enable(hw);
1050 }
1051
1052 const struct clk_ops tegra_clk_pll_ops = {
1053         .is_enabled = clk_pll_is_enabled,
1054         .enable = clk_pll_enable,
1055         .disable = clk_pll_disable,
1056         .recalc_rate = clk_pll_recalc_rate,
1057         .round_rate = clk_pll_round_rate,
1058         .set_rate = clk_pll_set_rate,
1059         .restore_context = tegra_clk_pll_restore_context,
1060 };
1061
1062 const struct clk_ops tegra_clk_plle_ops = {
1063         .recalc_rate = clk_plle_recalc_rate,
1064         .is_enabled = clk_pll_is_enabled,
1065         .disable = clk_pll_disable,
1066         .enable = clk_plle_enable,
1067 };
1068
1069 /*
1070  * Structure defining the fields for USB UTMI clocks Parameters.
1071  */
1072 struct utmi_clk_param {
1073         /* Oscillator Frequency in Hz */
1074         u32 osc_frequency;
1075         /* UTMIP PLL Enable Delay Count  */
1076         u8 enable_delay_count;
1077         /* UTMIP PLL Stable count */
1078         u8 stable_count;
1079         /*  UTMIP PLL Active delay count */
1080         u8 active_delay_count;
1081         /* UTMIP PLL Xtal frequency count */
1082         u8 xtal_freq_count;
1083 };
1084
1085 static const struct utmi_clk_param utmi_parameters[] = {
1086         {
1087                 .osc_frequency = 13000000, .enable_delay_count = 0x02,
1088                 .stable_count = 0x33, .active_delay_count = 0x05,
1089                 .xtal_freq_count = 0x7f
1090         }, {
1091                 .osc_frequency = 19200000, .enable_delay_count = 0x03,
1092                 .stable_count = 0x4b, .active_delay_count = 0x06,
1093                 .xtal_freq_count = 0xbb
1094         }, {
1095                 .osc_frequency = 12000000, .enable_delay_count = 0x02,
1096                 .stable_count = 0x2f, .active_delay_count = 0x04,
1097                 .xtal_freq_count = 0x76
1098         }, {
1099                 .osc_frequency = 26000000, .enable_delay_count = 0x04,
1100                 .stable_count = 0x66, .active_delay_count = 0x09,
1101                 .xtal_freq_count = 0xfe
1102         }, {
1103                 .osc_frequency = 16800000, .enable_delay_count = 0x03,
1104                 .stable_count = 0x41, .active_delay_count = 0x0a,
1105                 .xtal_freq_count = 0xa4
1106         }, {
1107                 .osc_frequency = 38400000, .enable_delay_count = 0x0,
1108                 .stable_count = 0x0, .active_delay_count = 0x6,
1109                 .xtal_freq_count = 0x80
1110         },
1111 };
1112
1113 static int clk_pllu_enable(struct clk_hw *hw)
1114 {
1115         struct tegra_clk_pll *pll = to_clk_pll(hw);
1116         struct clk_hw *pll_ref = clk_hw_get_parent(hw);
1117         struct clk_hw *osc = clk_hw_get_parent(pll_ref);
1118         const struct utmi_clk_param *params = NULL;
1119         unsigned long flags = 0, input_rate;
1120         unsigned int i;
1121         int ret = 0;
1122         u32 value;
1123
1124         if (!osc) {
1125                 pr_err("%s: failed to get OSC clock\n", __func__);
1126                 return -EINVAL;
1127         }
1128
1129         input_rate = clk_hw_get_rate(osc);
1130
1131         if (pll->lock)
1132                 spin_lock_irqsave(pll->lock, flags);
1133
1134         _clk_pll_enable(hw);
1135
1136         ret = clk_pll_wait_for_lock(pll);
1137         if (ret < 0)
1138                 goto out;
1139
1140         for (i = 0; i < ARRAY_SIZE(utmi_parameters); i++) {
1141                 if (input_rate == utmi_parameters[i].osc_frequency) {
1142                         params = &utmi_parameters[i];
1143                         break;
1144                 }
1145         }
1146
1147         if (!params) {
1148                 pr_err("%s: unexpected input rate %lu Hz\n", __func__,
1149                        input_rate);
1150                 ret = -EINVAL;
1151                 goto out;
1152         }
1153
1154         value = pll_readl_base(pll);
1155         value &= ~PLLU_BASE_OVERRIDE;
1156         pll_writel_base(value, pll);
1157
1158         value = readl_relaxed(pll->clk_base + UTMIP_PLL_CFG2);
1159         /* Program UTMIP PLL stable and active counts */
1160         value &= ~UTMIP_PLL_CFG2_STABLE_COUNT(~0);
1161         value |= UTMIP_PLL_CFG2_STABLE_COUNT(params->stable_count);
1162         value &= ~UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(~0);
1163         value |= UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(params->active_delay_count);
1164         /* Remove power downs from UTMIP PLL control bits */
1165         value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERDOWN;
1166         value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERDOWN;
1167         value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERDOWN;
1168         writel_relaxed(value, pll->clk_base + UTMIP_PLL_CFG2);
1169
1170         value = readl_relaxed(pll->clk_base + UTMIP_PLL_CFG1);
1171         /* Program UTMIP PLL delay and oscillator frequency counts */
1172         value &= ~UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(~0);
1173         value |= UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(params->enable_delay_count);
1174         value &= ~UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(~0);
1175         value |= UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(params->xtal_freq_count);
1176         /* Remove power downs from UTMIP PLL control bits */
1177         value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN;
1178         value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ACTIVE_POWERDOWN;
1179         value &= ~UTMIP_PLL_CFG1_FORCE_PLLU_POWERDOWN;
1180         writel_relaxed(value, pll->clk_base + UTMIP_PLL_CFG1);
1181
1182 out:
1183         if (pll->lock)
1184                 spin_unlock_irqrestore(pll->lock, flags);
1185
1186         return ret;
1187 }
1188
1189 static const struct clk_ops tegra_clk_pllu_ops = {
1190         .is_enabled = clk_pll_is_enabled,
1191         .enable = clk_pllu_enable,
1192         .disable = clk_pll_disable,
1193         .recalc_rate = clk_pll_recalc_rate,
1194         .round_rate = clk_pll_round_rate,
1195         .set_rate = clk_pll_set_rate,
1196 };
1197
1198 static int _pll_fixed_mdiv(struct tegra_clk_pll_params *pll_params,
1199                            unsigned long parent_rate)
1200 {
1201         u16 mdiv = parent_rate / pll_params->cf_min;
1202
1203         if (pll_params->flags & TEGRA_MDIV_NEW)
1204                 return (!pll_params->mdiv_default ? mdiv :
1205                         min(mdiv, pll_params->mdiv_default));
1206
1207         if (pll_params->mdiv_default)
1208                 return pll_params->mdiv_default;
1209
1210         if (parent_rate > pll_params->cf_max)
1211                 return 2;
1212         else
1213                 return 1;
1214 }
1215
1216 static int _calc_dynamic_ramp_rate(struct clk_hw *hw,
1217                                 struct tegra_clk_pll_freq_table *cfg,
1218                                 unsigned long rate, unsigned long parent_rate)
1219 {
1220         struct tegra_clk_pll *pll = to_clk_pll(hw);
1221         unsigned int p;
1222         int p_div;
1223
1224         if (!rate)
1225                 return -EINVAL;
1226
1227         p = DIV_ROUND_UP(pll->params->vco_min, rate);
1228         cfg->m = _pll_fixed_mdiv(pll->params, parent_rate);
1229         cfg->output_rate = rate * p;
1230         cfg->n = cfg->output_rate * cfg->m / parent_rate;
1231         cfg->input_rate = parent_rate;
1232
1233         p_div = _p_div_to_hw(hw, p);
1234         if (p_div < 0)
1235                 return p_div;
1236
1237         cfg->p = p_div;
1238
1239         if (cfg->n > divn_max(pll) || cfg->output_rate > pll->params->vco_max)
1240                 return -EINVAL;
1241
1242         return 0;
1243 }
1244
1245 #if defined(CONFIG_ARCH_TEGRA_114_SOC) || \
1246         defined(CONFIG_ARCH_TEGRA_124_SOC) || \
1247         defined(CONFIG_ARCH_TEGRA_132_SOC) || \
1248         defined(CONFIG_ARCH_TEGRA_210_SOC)
1249
1250 u16 tegra_pll_get_fixed_mdiv(struct clk_hw *hw, unsigned long input_rate)
1251 {
1252         struct tegra_clk_pll *pll = to_clk_pll(hw);
1253
1254         return (u16)_pll_fixed_mdiv(pll->params, input_rate);
1255 }
1256
1257 static unsigned long _clip_vco_min(unsigned long vco_min,
1258                                    unsigned long parent_rate)
1259 {
1260         return DIV_ROUND_UP(vco_min, parent_rate) * parent_rate;
1261 }
1262
1263 static int _setup_dynamic_ramp(struct tegra_clk_pll_params *pll_params,
1264                                void __iomem *clk_base,
1265                                unsigned long parent_rate)
1266 {
1267         u32 val;
1268         u32 step_a, step_b;
1269
1270         switch (parent_rate) {
1271         case 12000000:
1272         case 13000000:
1273         case 26000000:
1274                 step_a = 0x2B;
1275                 step_b = 0x0B;
1276                 break;
1277         case 16800000:
1278                 step_a = 0x1A;
1279                 step_b = 0x09;
1280                 break;
1281         case 19200000:
1282                 step_a = 0x12;
1283                 step_b = 0x08;
1284                 break;
1285         default:
1286                 pr_err("%s: Unexpected reference rate %lu\n",
1287                         __func__, parent_rate);
1288                 WARN_ON(1);
1289                 return -EINVAL;
1290         }
1291
1292         val = step_a << pll_params->stepa_shift;
1293         val |= step_b << pll_params->stepb_shift;
1294         writel_relaxed(val, clk_base + pll_params->dyn_ramp_reg);
1295
1296         return 0;
1297 }
1298
1299 static int _pll_ramp_calc_pll(struct clk_hw *hw,
1300                               struct tegra_clk_pll_freq_table *cfg,
1301                               unsigned long rate, unsigned long parent_rate)
1302 {
1303         struct tegra_clk_pll *pll = to_clk_pll(hw);
1304         int err = 0;
1305
1306         err = _get_table_rate(hw, cfg, rate, parent_rate);
1307         if (err < 0)
1308                 err = _calc_dynamic_ramp_rate(hw, cfg, rate, parent_rate);
1309         else {
1310                 if (cfg->m != _pll_fixed_mdiv(pll->params, parent_rate)) {
1311                         WARN_ON(1);
1312                         err = -EINVAL;
1313                         goto out;
1314                 }
1315         }
1316
1317         if (cfg->p >  pll->params->max_p)
1318                 err = -EINVAL;
1319
1320 out:
1321         return err;
1322 }
1323
1324 static int clk_pllxc_set_rate(struct clk_hw *hw, unsigned long rate,
1325                                 unsigned long parent_rate)
1326 {
1327         struct tegra_clk_pll *pll = to_clk_pll(hw);
1328         struct tegra_clk_pll_freq_table cfg, old_cfg;
1329         unsigned long flags = 0;
1330         int ret;
1331
1332         ret = _pll_ramp_calc_pll(hw, &cfg, rate, parent_rate);
1333         if (ret < 0)
1334                 return ret;
1335
1336         if (pll->lock)
1337                 spin_lock_irqsave(pll->lock, flags);
1338
1339         _get_pll_mnp(pll, &old_cfg);
1340         if (pll->params->flags & TEGRA_PLL_VCO_OUT)
1341                 cfg.p = old_cfg.p;
1342
1343         if (old_cfg.m != cfg.m || old_cfg.n != cfg.n || old_cfg.p != cfg.p)
1344                 ret = _program_pll(hw, &cfg, rate);
1345
1346         if (pll->lock)
1347                 spin_unlock_irqrestore(pll->lock, flags);
1348
1349         return ret;
1350 }
1351
1352 static long clk_pll_ramp_round_rate(struct clk_hw *hw, unsigned long rate,
1353                                 unsigned long *prate)
1354 {
1355         struct tegra_clk_pll *pll = to_clk_pll(hw);
1356         struct tegra_clk_pll_freq_table cfg;
1357         int ret, p_div;
1358         u64 output_rate = *prate;
1359
1360         ret = _pll_ramp_calc_pll(hw, &cfg, rate, *prate);
1361         if (ret < 0)
1362                 return ret;
1363
1364         p_div = _hw_to_p_div(hw, cfg.p);
1365         if (p_div < 0)
1366                 return p_div;
1367
1368         if (pll->params->set_gain)
1369                 pll->params->set_gain(&cfg);
1370
1371         output_rate *= cfg.n;
1372         do_div(output_rate, cfg.m * p_div);
1373
1374         return output_rate;
1375 }
1376
1377 static void _pllcx_strobe(struct tegra_clk_pll *pll)
1378 {
1379         u32 val;
1380
1381         val = pll_readl_misc(pll);
1382         val |= PLLCX_MISC_STROBE;
1383         pll_writel_misc(val, pll);
1384         udelay(2);
1385
1386         val &= ~PLLCX_MISC_STROBE;
1387         pll_writel_misc(val, pll);
1388 }
1389
1390 static int clk_pllc_enable(struct clk_hw *hw)
1391 {
1392         struct tegra_clk_pll *pll = to_clk_pll(hw);
1393         u32 val;
1394         int ret;
1395         unsigned long flags = 0;
1396
1397         if (clk_pll_is_enabled(hw))
1398                 return 0;
1399
1400         if (pll->lock)
1401                 spin_lock_irqsave(pll->lock, flags);
1402
1403         _clk_pll_enable(hw);
1404         udelay(2);
1405
1406         val = pll_readl_misc(pll);
1407         val &= ~PLLCX_MISC_RESET;
1408         pll_writel_misc(val, pll);
1409         udelay(2);
1410
1411         _pllcx_strobe(pll);
1412
1413         ret = clk_pll_wait_for_lock(pll);
1414
1415         if (pll->lock)
1416                 spin_unlock_irqrestore(pll->lock, flags);
1417
1418         return ret;
1419 }
1420
1421 static void _clk_pllc_disable(struct clk_hw *hw)
1422 {
1423         struct tegra_clk_pll *pll = to_clk_pll(hw);
1424         u32 val;
1425
1426         _clk_pll_disable(hw);
1427
1428         val = pll_readl_misc(pll);
1429         val |= PLLCX_MISC_RESET;
1430         pll_writel_misc(val, pll);
1431         udelay(2);
1432 }
1433
1434 static void clk_pllc_disable(struct clk_hw *hw)
1435 {
1436         struct tegra_clk_pll *pll = to_clk_pll(hw);
1437         unsigned long flags = 0;
1438
1439         if (pll->lock)
1440                 spin_lock_irqsave(pll->lock, flags);
1441
1442         _clk_pllc_disable(hw);
1443
1444         if (pll->lock)
1445                 spin_unlock_irqrestore(pll->lock, flags);
1446 }
1447
1448 static int _pllcx_update_dynamic_coef(struct tegra_clk_pll *pll,
1449                                         unsigned long input_rate, u32 n)
1450 {
1451         u32 val, n_threshold;
1452
1453         switch (input_rate) {
1454         case 12000000:
1455                 n_threshold = 70;
1456                 break;
1457         case 13000000:
1458         case 26000000:
1459                 n_threshold = 71;
1460                 break;
1461         case 16800000:
1462                 n_threshold = 55;
1463                 break;
1464         case 19200000:
1465                 n_threshold = 48;
1466                 break;
1467         default:
1468                 pr_err("%s: Unexpected reference rate %lu\n",
1469                         __func__, input_rate);
1470                 return -EINVAL;
1471         }
1472
1473         val = pll_readl_misc(pll);
1474         val &= ~(PLLCX_MISC_SDM_DIV_MASK | PLLCX_MISC_FILT_DIV_MASK);
1475         val |= n <= n_threshold ?
1476                 PLLCX_MISC_DIV_LOW_RANGE : PLLCX_MISC_DIV_HIGH_RANGE;
1477         pll_writel_misc(val, pll);
1478
1479         return 0;
1480 }
1481
1482 static int clk_pllc_set_rate(struct clk_hw *hw, unsigned long rate,
1483                                 unsigned long parent_rate)
1484 {
1485         struct tegra_clk_pll_freq_table cfg, old_cfg;
1486         struct tegra_clk_pll *pll = to_clk_pll(hw);
1487         unsigned long flags = 0;
1488         int state, ret = 0;
1489
1490         if (pll->lock)
1491                 spin_lock_irqsave(pll->lock, flags);
1492
1493         ret = _pll_ramp_calc_pll(hw, &cfg, rate, parent_rate);
1494         if (ret < 0)
1495                 goto out;
1496
1497         _get_pll_mnp(pll, &old_cfg);
1498
1499         if (cfg.m != old_cfg.m) {
1500                 WARN_ON(1);
1501                 goto out;
1502         }
1503
1504         if (old_cfg.n == cfg.n && old_cfg.p == cfg.p)
1505                 goto out;
1506
1507         state = clk_pll_is_enabled(hw);
1508         if (state)
1509                 _clk_pllc_disable(hw);
1510
1511         ret = _pllcx_update_dynamic_coef(pll, parent_rate, cfg.n);
1512         if (ret < 0)
1513                 goto out;
1514
1515         _update_pll_mnp(pll, &cfg);
1516
1517         if (state)
1518                 ret = clk_pllc_enable(hw);
1519
1520 out:
1521         if (pll->lock)
1522                 spin_unlock_irqrestore(pll->lock, flags);
1523
1524         return ret;
1525 }
1526
1527 static long _pllre_calc_rate(struct tegra_clk_pll *pll,
1528                              struct tegra_clk_pll_freq_table *cfg,
1529                              unsigned long rate, unsigned long parent_rate)
1530 {
1531         u16 m, n;
1532         u64 output_rate = parent_rate;
1533
1534         m = _pll_fixed_mdiv(pll->params, parent_rate);
1535         n = rate * m / parent_rate;
1536
1537         output_rate *= n;
1538         do_div(output_rate, m);
1539
1540         if (cfg) {
1541                 cfg->m = m;
1542                 cfg->n = n;
1543         }
1544
1545         return output_rate;
1546 }
1547
1548 static int clk_pllre_set_rate(struct clk_hw *hw, unsigned long rate,
1549                                 unsigned long parent_rate)
1550 {
1551         struct tegra_clk_pll_freq_table cfg, old_cfg;
1552         struct tegra_clk_pll *pll = to_clk_pll(hw);
1553         unsigned long flags = 0;
1554         int state, ret = 0;
1555
1556         if (pll->lock)
1557                 spin_lock_irqsave(pll->lock, flags);
1558
1559         _pllre_calc_rate(pll, &cfg, rate, parent_rate);
1560         _get_pll_mnp(pll, &old_cfg);
1561         cfg.p = old_cfg.p;
1562
1563         if (cfg.m != old_cfg.m || cfg.n != old_cfg.n) {
1564                 state = clk_pll_is_enabled(hw);
1565                 if (state)
1566                         _clk_pll_disable(hw);
1567
1568                 _update_pll_mnp(pll, &cfg);
1569
1570                 if (state) {
1571                         _clk_pll_enable(hw);
1572                         ret = clk_pll_wait_for_lock(pll);
1573                 }
1574         }
1575
1576         if (pll->lock)
1577                 spin_unlock_irqrestore(pll->lock, flags);
1578
1579         return ret;
1580 }
1581
1582 static unsigned long clk_pllre_recalc_rate(struct clk_hw *hw,
1583                                          unsigned long parent_rate)
1584 {
1585         struct tegra_clk_pll_freq_table cfg;
1586         struct tegra_clk_pll *pll = to_clk_pll(hw);
1587         u64 rate = parent_rate;
1588
1589         _get_pll_mnp(pll, &cfg);
1590
1591         rate *= cfg.n;
1592         do_div(rate, cfg.m);
1593
1594         return rate;
1595 }
1596
1597 static long clk_pllre_round_rate(struct clk_hw *hw, unsigned long rate,
1598                                  unsigned long *prate)
1599 {
1600         struct tegra_clk_pll *pll = to_clk_pll(hw);
1601
1602         return _pllre_calc_rate(pll, NULL, rate, *prate);
1603 }
1604
1605 static int clk_plle_tegra114_enable(struct clk_hw *hw)
1606 {
1607         struct tegra_clk_pll *pll = to_clk_pll(hw);
1608         struct tegra_clk_pll_freq_table sel;
1609         u32 val;
1610         int ret;
1611         unsigned long flags = 0;
1612         unsigned long input_rate;
1613
1614         input_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
1615
1616         if (_get_table_rate(hw, &sel, pll->params->fixed_rate, input_rate))
1617                 return -EINVAL;
1618
1619         if (pll->lock)
1620                 spin_lock_irqsave(pll->lock, flags);
1621
1622         val = pll_readl_base(pll);
1623         val &= ~BIT(29); /* Disable lock override */
1624         pll_writel_base(val, pll);
1625
1626         val = pll_readl(pll->params->aux_reg, pll);
1627         val |= PLLE_AUX_ENABLE_SWCTL;
1628         val &= ~PLLE_AUX_SEQ_ENABLE;
1629         pll_writel(val, pll->params->aux_reg, pll);
1630         udelay(1);
1631
1632         val = pll_readl_misc(pll);
1633         val |= PLLE_MISC_LOCK_ENABLE;
1634         val |= PLLE_MISC_IDDQ_SW_CTRL;
1635         val &= ~PLLE_MISC_IDDQ_SW_VALUE;
1636         val |= PLLE_MISC_PLLE_PTS;
1637         val &= ~(PLLE_MISC_VREG_BG_CTRL_MASK | PLLE_MISC_VREG_CTRL_MASK);
1638         pll_writel_misc(val, pll);
1639         udelay(5);
1640
1641         val = pll_readl(PLLE_SS_CTRL, pll);
1642         val |= PLLE_SS_DISABLE;
1643         pll_writel(val, PLLE_SS_CTRL, pll);
1644
1645         val = pll_readl_base(pll);
1646         val &= ~(divp_mask_shifted(pll) | divn_mask_shifted(pll) |
1647                  divm_mask_shifted(pll));
1648         val &= ~(PLLE_BASE_DIVCML_MASK << PLLE_BASE_DIVCML_SHIFT);
1649         val |= sel.m << divm_shift(pll);
1650         val |= sel.n << divn_shift(pll);
1651         val |= sel.cpcon << PLLE_BASE_DIVCML_SHIFT;
1652         pll_writel_base(val, pll);
1653         udelay(1);
1654
1655         _clk_pll_enable(hw);
1656         ret = clk_pll_wait_for_lock(pll);
1657
1658         if (ret < 0)
1659                 goto out;
1660
1661         val = pll_readl(PLLE_SS_CTRL, pll);
1662         val &= ~(PLLE_SS_CNTL_CENTER | PLLE_SS_CNTL_INVERT);
1663         val &= ~PLLE_SS_COEFFICIENTS_MASK;
1664         val |= PLLE_SS_COEFFICIENTS_VAL_TEGRA114;
1665         pll_writel(val, PLLE_SS_CTRL, pll);
1666         val &= ~(PLLE_SS_CNTL_SSC_BYP | PLLE_SS_CNTL_BYPASS_SS);
1667         pll_writel(val, PLLE_SS_CTRL, pll);
1668         udelay(1);
1669         val &= ~PLLE_SS_CNTL_INTERP_RESET;
1670         pll_writel(val, PLLE_SS_CTRL, pll);
1671         udelay(1);
1672
1673         /* Enable HW control of XUSB brick PLL */
1674         val = pll_readl_misc(pll);
1675         val &= ~PLLE_MISC_IDDQ_SW_CTRL;
1676         pll_writel_misc(val, pll);
1677
1678         val = pll_readl(pll->params->aux_reg, pll);
1679         val |= (PLLE_AUX_USE_LOCKDET | PLLE_AUX_SEQ_START_STATE);
1680         val &= ~(PLLE_AUX_ENABLE_SWCTL | PLLE_AUX_SS_SWCTL);
1681         pll_writel(val, pll->params->aux_reg, pll);
1682         udelay(1);
1683         val |= PLLE_AUX_SEQ_ENABLE;
1684         pll_writel(val, pll->params->aux_reg, pll);
1685
1686         val = pll_readl(XUSBIO_PLL_CFG0, pll);
1687         val |= (XUSBIO_PLL_CFG0_PADPLL_USE_LOCKDET |
1688                 XUSBIO_PLL_CFG0_SEQ_START_STATE);
1689         val &= ~(XUSBIO_PLL_CFG0_CLK_ENABLE_SWCTL |
1690                  XUSBIO_PLL_CFG0_PADPLL_RESET_SWCTL);
1691         pll_writel(val, XUSBIO_PLL_CFG0, pll);
1692         udelay(1);
1693         val |= XUSBIO_PLL_CFG0_SEQ_ENABLE;
1694         pll_writel(val, XUSBIO_PLL_CFG0, pll);
1695
1696         /* Enable HW control of SATA PLL */
1697         val = pll_readl(SATA_PLL_CFG0, pll);
1698         val &= ~SATA_PLL_CFG0_PADPLL_RESET_SWCTL;
1699         val |= SATA_PLL_CFG0_PADPLL_USE_LOCKDET;
1700         val |= SATA_PLL_CFG0_SEQ_START_STATE;
1701         pll_writel(val, SATA_PLL_CFG0, pll);
1702
1703         udelay(1);
1704
1705         val = pll_readl(SATA_PLL_CFG0, pll);
1706         val |= SATA_PLL_CFG0_SEQ_ENABLE;
1707         pll_writel(val, SATA_PLL_CFG0, pll);
1708
1709 out:
1710         if (pll->lock)
1711                 spin_unlock_irqrestore(pll->lock, flags);
1712
1713         return ret;
1714 }
1715
1716 static void clk_plle_tegra114_disable(struct clk_hw *hw)
1717 {
1718         struct tegra_clk_pll *pll = to_clk_pll(hw);
1719         unsigned long flags = 0;
1720         u32 val;
1721
1722         if (pll->lock)
1723                 spin_lock_irqsave(pll->lock, flags);
1724
1725         _clk_pll_disable(hw);
1726
1727         val = pll_readl_misc(pll);
1728         val |= PLLE_MISC_IDDQ_SW_CTRL | PLLE_MISC_IDDQ_SW_VALUE;
1729         pll_writel_misc(val, pll);
1730         udelay(1);
1731
1732         if (pll->lock)
1733                 spin_unlock_irqrestore(pll->lock, flags);
1734 }
1735
1736 static int clk_pllu_tegra114_enable(struct clk_hw *hw)
1737 {
1738         struct tegra_clk_pll *pll = to_clk_pll(hw);
1739         const struct utmi_clk_param *params = NULL;
1740         struct clk *osc = __clk_lookup("osc");
1741         unsigned long flags = 0, input_rate;
1742         unsigned int i;
1743         int ret = 0;
1744         u32 value;
1745
1746         if (!osc) {
1747                 pr_err("%s: failed to get OSC clock\n", __func__);
1748                 return -EINVAL;
1749         }
1750
1751         if (clk_pll_is_enabled(hw))
1752                 return 0;
1753
1754         input_rate = clk_hw_get_rate(__clk_get_hw(osc));
1755
1756         if (pll->lock)
1757                 spin_lock_irqsave(pll->lock, flags);
1758
1759         _clk_pll_enable(hw);
1760
1761         ret = clk_pll_wait_for_lock(pll);
1762         if (ret < 0)
1763                 goto out;
1764
1765         for (i = 0; i < ARRAY_SIZE(utmi_parameters); i++) {
1766                 if (input_rate == utmi_parameters[i].osc_frequency) {
1767                         params = &utmi_parameters[i];
1768                         break;
1769                 }
1770         }
1771
1772         if (!params) {
1773                 pr_err("%s: unexpected input rate %lu Hz\n", __func__,
1774                        input_rate);
1775                 ret = -EINVAL;
1776                 goto out;
1777         }
1778
1779         value = pll_readl_base(pll);
1780         value &= ~PLLU_BASE_OVERRIDE;
1781         pll_writel_base(value, pll);
1782
1783         value = readl_relaxed(pll->clk_base + UTMIP_PLL_CFG2);
1784         /* Program UTMIP PLL stable and active counts */
1785         value &= ~UTMIP_PLL_CFG2_STABLE_COUNT(~0);
1786         value |= UTMIP_PLL_CFG2_STABLE_COUNT(params->stable_count);
1787         value &= ~UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(~0);
1788         value |= UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(params->active_delay_count);
1789         /* Remove power downs from UTMIP PLL control bits */
1790         value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERDOWN;
1791         value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERDOWN;
1792         value &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERDOWN;
1793         writel_relaxed(value, pll->clk_base + UTMIP_PLL_CFG2);
1794
1795         value = readl_relaxed(pll->clk_base + UTMIP_PLL_CFG1);
1796         /* Program UTMIP PLL delay and oscillator frequency counts */
1797         value &= ~UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(~0);
1798         value |= UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(params->enable_delay_count);
1799         value &= ~UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(~0);
1800         value |= UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(params->xtal_freq_count);
1801         /* Remove power downs from UTMIP PLL control bits */
1802         value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN;
1803         value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ACTIVE_POWERDOWN;
1804         value &= ~UTMIP_PLL_CFG1_FORCE_PLLU_POWERUP;
1805         value &= ~UTMIP_PLL_CFG1_FORCE_PLLU_POWERDOWN;
1806         writel_relaxed(value, pll->clk_base + UTMIP_PLL_CFG1);
1807
1808         /* Setup HW control of UTMIPLL */
1809         value = readl_relaxed(pll->clk_base + UTMIPLL_HW_PWRDN_CFG0);
1810         value |= UTMIPLL_HW_PWRDN_CFG0_USE_LOCKDET;
1811         value &= ~UTMIPLL_HW_PWRDN_CFG0_CLK_ENABLE_SWCTL;
1812         value |= UTMIPLL_HW_PWRDN_CFG0_SEQ_START_STATE;
1813         writel_relaxed(value, pll->clk_base + UTMIPLL_HW_PWRDN_CFG0);
1814
1815         value = readl_relaxed(pll->clk_base + UTMIP_PLL_CFG1);
1816         value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERUP;
1817         value &= ~UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN;
1818         writel_relaxed(value, pll->clk_base + UTMIP_PLL_CFG1);
1819
1820         udelay(1);
1821
1822         /*
1823          * Setup SW override of UTMIPLL assuming USB2.0 ports are assigned
1824          * to USB2
1825          */
1826         value = readl_relaxed(pll->clk_base + UTMIPLL_HW_PWRDN_CFG0);
1827         value |= UTMIPLL_HW_PWRDN_CFG0_IDDQ_SWCTL;
1828         value &= ~UTMIPLL_HW_PWRDN_CFG0_IDDQ_OVERRIDE;
1829         writel_relaxed(value, pll->clk_base + UTMIPLL_HW_PWRDN_CFG0);
1830
1831         udelay(1);
1832
1833         /* Enable HW control of UTMIPLL */
1834         value = readl_relaxed(pll->clk_base + UTMIPLL_HW_PWRDN_CFG0);
1835         value |= UTMIPLL_HW_PWRDN_CFG0_SEQ_ENABLE;
1836         writel_relaxed(value, pll->clk_base + UTMIPLL_HW_PWRDN_CFG0);
1837
1838 out:
1839         if (pll->lock)
1840                 spin_unlock_irqrestore(pll->lock, flags);
1841
1842         return ret;
1843 }
1844
1845 static void _clk_plle_tegra_init_parent(struct tegra_clk_pll *pll)
1846 {
1847         u32 val, val_aux;
1848
1849         /* ensure parent is set to pll_ref */
1850         val = pll_readl_base(pll);
1851         val_aux = pll_readl(pll->params->aux_reg, pll);
1852
1853         if (val & PLL_BASE_ENABLE) {
1854                 if ((val_aux & PLLE_AUX_PLLRE_SEL) ||
1855                     (val_aux & PLLE_AUX_PLLP_SEL))
1856                         WARN(1, "pll_e enabled with unsupported parent %s\n",
1857                              (val_aux & PLLE_AUX_PLLP_SEL) ? "pllp_out0" :
1858                              "pll_re_vco");
1859         } else {
1860                 val_aux &= ~(PLLE_AUX_PLLRE_SEL | PLLE_AUX_PLLP_SEL);
1861                 pll_writel(val_aux, pll->params->aux_reg, pll);
1862                 fence_udelay(1, pll->clk_base);
1863         }
1864 }
1865 #endif
1866
1867 static struct tegra_clk_pll *_tegra_init_pll(void __iomem *clk_base,
1868                 void __iomem *pmc, struct tegra_clk_pll_params *pll_params,
1869                 spinlock_t *lock)
1870 {
1871         struct tegra_clk_pll *pll;
1872
1873         pll = kzalloc(sizeof(*pll), GFP_KERNEL);
1874         if (!pll)
1875                 return ERR_PTR(-ENOMEM);
1876
1877         pll->clk_base = clk_base;
1878         pll->pmc = pmc;
1879
1880         pll->params = pll_params;
1881         pll->lock = lock;
1882
1883         if (!pll_params->div_nmp)
1884                 pll_params->div_nmp = &default_nmp;
1885
1886         return pll;
1887 }
1888
1889 static struct clk *_tegra_clk_register_pll(struct tegra_clk_pll *pll,
1890                 const char *name, const char *parent_name, unsigned long flags,
1891                 const struct clk_ops *ops)
1892 {
1893         struct clk_init_data init;
1894
1895         init.name = name;
1896         init.ops = ops;
1897         init.flags = flags;
1898         init.parent_names = (parent_name ? &parent_name : NULL);
1899         init.num_parents = (parent_name ? 1 : 0);
1900
1901         /* Default to _calc_rate if unspecified */
1902         if (!pll->params->calc_rate) {
1903                 if (pll->params->flags & TEGRA_PLLM)
1904                         pll->params->calc_rate = _calc_dynamic_ramp_rate;
1905                 else
1906                         pll->params->calc_rate = _calc_rate;
1907         }
1908
1909         if (pll->params->set_defaults)
1910                 pll->params->set_defaults(pll);
1911
1912         /* Data in .init is copied by clk_register(), so stack variable OK */
1913         pll->hw.init = &init;
1914
1915         return clk_register(NULL, &pll->hw);
1916 }
1917
1918 struct clk *tegra_clk_register_pll(const char *name, const char *parent_name,
1919                 void __iomem *clk_base, void __iomem *pmc,
1920                 unsigned long flags, struct tegra_clk_pll_params *pll_params,
1921                 spinlock_t *lock)
1922 {
1923         struct tegra_clk_pll *pll;
1924         struct clk *clk;
1925
1926         pll_params->flags |= TEGRA_PLL_BYPASS;
1927
1928         pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
1929         if (IS_ERR(pll))
1930                 return ERR_CAST(pll);
1931
1932         clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
1933                                       &tegra_clk_pll_ops);
1934         if (IS_ERR(clk))
1935                 kfree(pll);
1936
1937         return clk;
1938 }
1939
1940 static struct div_nmp pll_e_nmp = {
1941         .divn_shift = PLLE_BASE_DIVN_SHIFT,
1942         .divn_width = PLLE_BASE_DIVN_WIDTH,
1943         .divm_shift = PLLE_BASE_DIVM_SHIFT,
1944         .divm_width = PLLE_BASE_DIVM_WIDTH,
1945         .divp_shift = PLLE_BASE_DIVP_SHIFT,
1946         .divp_width = PLLE_BASE_DIVP_WIDTH,
1947 };
1948
1949 struct clk *tegra_clk_register_plle(const char *name, const char *parent_name,
1950                 void __iomem *clk_base, void __iomem *pmc,
1951                 unsigned long flags, struct tegra_clk_pll_params *pll_params,
1952                 spinlock_t *lock)
1953 {
1954         struct tegra_clk_pll *pll;
1955         struct clk *clk;
1956
1957         pll_params->flags |= TEGRA_PLL_BYPASS;
1958
1959         if (!pll_params->div_nmp)
1960                 pll_params->div_nmp = &pll_e_nmp;
1961
1962         pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
1963         if (IS_ERR(pll))
1964                 return ERR_CAST(pll);
1965
1966         clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
1967                                       &tegra_clk_plle_ops);
1968         if (IS_ERR(clk))
1969                 kfree(pll);
1970
1971         return clk;
1972 }
1973
1974 struct clk *tegra_clk_register_pllu(const char *name, const char *parent_name,
1975                 void __iomem *clk_base, unsigned long flags,
1976                 struct tegra_clk_pll_params *pll_params, spinlock_t *lock)
1977 {
1978         struct tegra_clk_pll *pll;
1979         struct clk *clk;
1980
1981         pll_params->flags |= TEGRA_PLLU;
1982
1983         pll = _tegra_init_pll(clk_base, NULL, pll_params, lock);
1984         if (IS_ERR(pll))
1985                 return ERR_CAST(pll);
1986
1987         clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
1988                                       &tegra_clk_pllu_ops);
1989         if (IS_ERR(clk))
1990                 kfree(pll);
1991
1992         return clk;
1993 }
1994
1995 #if defined(CONFIG_ARCH_TEGRA_114_SOC) || \
1996         defined(CONFIG_ARCH_TEGRA_124_SOC) || \
1997         defined(CONFIG_ARCH_TEGRA_132_SOC) || \
1998         defined(CONFIG_ARCH_TEGRA_210_SOC)
1999 static const struct clk_ops tegra_clk_pllxc_ops = {
2000         .is_enabled = clk_pll_is_enabled,
2001         .enable = clk_pll_enable,
2002         .disable = clk_pll_disable,
2003         .recalc_rate = clk_pll_recalc_rate,
2004         .round_rate = clk_pll_ramp_round_rate,
2005         .set_rate = clk_pllxc_set_rate,
2006 };
2007
2008 static const struct clk_ops tegra_clk_pllc_ops = {
2009         .is_enabled = clk_pll_is_enabled,
2010         .enable = clk_pllc_enable,
2011         .disable = clk_pllc_disable,
2012         .recalc_rate = clk_pll_recalc_rate,
2013         .round_rate = clk_pll_ramp_round_rate,
2014         .set_rate = clk_pllc_set_rate,
2015 };
2016
2017 static const struct clk_ops tegra_clk_pllre_ops = {
2018         .is_enabled = clk_pll_is_enabled,
2019         .enable = clk_pll_enable,
2020         .disable = clk_pll_disable,
2021         .recalc_rate = clk_pllre_recalc_rate,
2022         .round_rate = clk_pllre_round_rate,
2023         .set_rate = clk_pllre_set_rate,
2024 };
2025
2026 static const struct clk_ops tegra_clk_plle_tegra114_ops = {
2027         .is_enabled =  clk_pll_is_enabled,
2028         .enable = clk_plle_tegra114_enable,
2029         .disable = clk_plle_tegra114_disable,
2030         .recalc_rate = clk_pll_recalc_rate,
2031 };
2032
2033 static const struct clk_ops tegra_clk_pllu_tegra114_ops = {
2034         .is_enabled =  clk_pll_is_enabled,
2035         .enable = clk_pllu_tegra114_enable,
2036         .disable = clk_pll_disable,
2037         .recalc_rate = clk_pll_recalc_rate,
2038 };
2039
2040 struct clk *tegra_clk_register_pllxc(const char *name, const char *parent_name,
2041                           void __iomem *clk_base, void __iomem *pmc,
2042                           unsigned long flags,
2043                           struct tegra_clk_pll_params *pll_params,
2044                           spinlock_t *lock)
2045 {
2046         struct tegra_clk_pll *pll;
2047         struct clk *clk, *parent;
2048         unsigned long parent_rate;
2049         u32 val, val_iddq;
2050
2051         parent = __clk_lookup(parent_name);
2052         if (!parent) {
2053                 WARN(1, "parent clk %s of %s must be registered first\n",
2054                         parent_name, name);
2055                 return ERR_PTR(-EINVAL);
2056         }
2057
2058         if (!pll_params->pdiv_tohw)
2059                 return ERR_PTR(-EINVAL);
2060
2061         parent_rate = clk_get_rate(parent);
2062
2063         pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2064
2065         if (pll_params->adjust_vco)
2066                 pll_params->vco_min = pll_params->adjust_vco(pll_params,
2067                                                              parent_rate);
2068
2069         /*
2070          * If the pll has a set_defaults callback, it will take care of
2071          * configuring dynamic ramping and setting IDDQ in that path.
2072          */
2073         if (!pll_params->set_defaults) {
2074                 int err;
2075
2076                 err = _setup_dynamic_ramp(pll_params, clk_base, parent_rate);
2077                 if (err)
2078                         return ERR_PTR(err);
2079
2080                 val = readl_relaxed(clk_base + pll_params->base_reg);
2081                 val_iddq = readl_relaxed(clk_base + pll_params->iddq_reg);
2082
2083                 if (val & PLL_BASE_ENABLE)
2084                         WARN_ON(val_iddq & BIT(pll_params->iddq_bit_idx));
2085                 else {
2086                         val_iddq |= BIT(pll_params->iddq_bit_idx);
2087                         writel_relaxed(val_iddq,
2088                                        clk_base + pll_params->iddq_reg);
2089                 }
2090         }
2091
2092         pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
2093         if (IS_ERR(pll))
2094                 return ERR_CAST(pll);
2095
2096         clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2097                                       &tegra_clk_pllxc_ops);
2098         if (IS_ERR(clk))
2099                 kfree(pll);
2100
2101         return clk;
2102 }
2103
2104 struct clk *tegra_clk_register_pllre(const char *name, const char *parent_name,
2105                           void __iomem *clk_base, void __iomem *pmc,
2106                           unsigned long flags,
2107                           struct tegra_clk_pll_params *pll_params,
2108                           spinlock_t *lock, unsigned long parent_rate)
2109 {
2110         u32 val;
2111         struct tegra_clk_pll *pll;
2112         struct clk *clk;
2113
2114         pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2115
2116         if (pll_params->adjust_vco)
2117                 pll_params->vco_min = pll_params->adjust_vco(pll_params,
2118                                                              parent_rate);
2119
2120         pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
2121         if (IS_ERR(pll))
2122                 return ERR_CAST(pll);
2123
2124         /* program minimum rate by default */
2125
2126         val = pll_readl_base(pll);
2127         if (val & PLL_BASE_ENABLE)
2128                 WARN_ON(readl_relaxed(clk_base + pll_params->iddq_reg) &
2129                                 BIT(pll_params->iddq_bit_idx));
2130         else {
2131                 int m;
2132
2133                 m = _pll_fixed_mdiv(pll_params, parent_rate);
2134                 val = m << divm_shift(pll);
2135                 val |= (pll_params->vco_min / parent_rate) << divn_shift(pll);
2136                 pll_writel_base(val, pll);
2137         }
2138
2139         /* disable lock override */
2140
2141         val = pll_readl_misc(pll);
2142         val &= ~BIT(29);
2143         pll_writel_misc(val, pll);
2144
2145         clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2146                                       &tegra_clk_pllre_ops);
2147         if (IS_ERR(clk))
2148                 kfree(pll);
2149
2150         return clk;
2151 }
2152
2153 struct clk *tegra_clk_register_pllm(const char *name, const char *parent_name,
2154                           void __iomem *clk_base, void __iomem *pmc,
2155                           unsigned long flags,
2156                           struct tegra_clk_pll_params *pll_params,
2157                           spinlock_t *lock)
2158 {
2159         struct tegra_clk_pll *pll;
2160         struct clk *clk, *parent;
2161         unsigned long parent_rate;
2162
2163         if (!pll_params->pdiv_tohw)
2164                 return ERR_PTR(-EINVAL);
2165
2166         parent = __clk_lookup(parent_name);
2167         if (!parent) {
2168                 WARN(1, "parent clk %s of %s must be registered first\n",
2169                         parent_name, name);
2170                 return ERR_PTR(-EINVAL);
2171         }
2172
2173         parent_rate = clk_get_rate(parent);
2174
2175         pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2176
2177         if (pll_params->adjust_vco)
2178                 pll_params->vco_min = pll_params->adjust_vco(pll_params,
2179                                                              parent_rate);
2180
2181         pll_params->flags |= TEGRA_PLL_BYPASS;
2182         pll_params->flags |= TEGRA_PLLM;
2183         pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
2184         if (IS_ERR(pll))
2185                 return ERR_CAST(pll);
2186
2187         clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2188                                       &tegra_clk_pll_ops);
2189         if (IS_ERR(clk))
2190                 kfree(pll);
2191
2192         return clk;
2193 }
2194
2195 struct clk *tegra_clk_register_pllc(const char *name, const char *parent_name,
2196                           void __iomem *clk_base, void __iomem *pmc,
2197                           unsigned long flags,
2198                           struct tegra_clk_pll_params *pll_params,
2199                           spinlock_t *lock)
2200 {
2201         struct clk *parent, *clk;
2202         const struct pdiv_map *p_tohw = pll_params->pdiv_tohw;
2203         struct tegra_clk_pll *pll;
2204         struct tegra_clk_pll_freq_table cfg;
2205         unsigned long parent_rate;
2206
2207         if (!p_tohw)
2208                 return ERR_PTR(-EINVAL);
2209
2210         parent = __clk_lookup(parent_name);
2211         if (!parent) {
2212                 WARN(1, "parent clk %s of %s must be registered first\n",
2213                         parent_name, name);
2214                 return ERR_PTR(-EINVAL);
2215         }
2216
2217         parent_rate = clk_get_rate(parent);
2218
2219         pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2220
2221         pll_params->flags |= TEGRA_PLL_BYPASS;
2222         pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
2223         if (IS_ERR(pll))
2224                 return ERR_CAST(pll);
2225
2226         /*
2227          * Most of PLLC register fields are shadowed, and can not be read
2228          * directly from PLL h/w. Hence, actual PLLC boot state is unknown.
2229          * Initialize PLL to default state: disabled, reset; shadow registers
2230          * loaded with default parameters; dividers are preset for half of
2231          * minimum VCO rate (the latter assured that shadowed divider settings
2232          * are within supported range).
2233          */
2234
2235         cfg.m = _pll_fixed_mdiv(pll_params, parent_rate);
2236         cfg.n = cfg.m * pll_params->vco_min / parent_rate;
2237
2238         while (p_tohw->pdiv) {
2239                 if (p_tohw->pdiv == 2) {
2240                         cfg.p = p_tohw->hw_val;
2241                         break;
2242                 }
2243                 p_tohw++;
2244         }
2245
2246         if (!p_tohw->pdiv) {
2247                 WARN_ON(1);
2248                 return ERR_PTR(-EINVAL);
2249         }
2250
2251         pll_writel_base(0, pll);
2252         _update_pll_mnp(pll, &cfg);
2253
2254         pll_writel_misc(PLLCX_MISC_DEFAULT, pll);
2255         pll_writel(PLLCX_MISC1_DEFAULT, pll_params->ext_misc_reg[0], pll);
2256         pll_writel(PLLCX_MISC2_DEFAULT, pll_params->ext_misc_reg[1], pll);
2257         pll_writel(PLLCX_MISC3_DEFAULT, pll_params->ext_misc_reg[2], pll);
2258
2259         _pllcx_update_dynamic_coef(pll, parent_rate, cfg.n);
2260
2261         clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2262                                       &tegra_clk_pllc_ops);
2263         if (IS_ERR(clk))
2264                 kfree(pll);
2265
2266         return clk;
2267 }
2268
2269 struct clk *tegra_clk_register_plle_tegra114(const char *name,
2270                                 const char *parent_name,
2271                                 void __iomem *clk_base, unsigned long flags,
2272                                 struct tegra_clk_pll_params *pll_params,
2273                                 spinlock_t *lock)
2274 {
2275         struct tegra_clk_pll *pll;
2276         struct clk *clk;
2277
2278         pll = _tegra_init_pll(clk_base, NULL, pll_params, lock);
2279         if (IS_ERR(pll))
2280                 return ERR_CAST(pll);
2281
2282         _clk_plle_tegra_init_parent(pll);
2283
2284         clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2285                                       &tegra_clk_plle_tegra114_ops);
2286         if (IS_ERR(clk))
2287                 kfree(pll);
2288
2289         return clk;
2290 }
2291
2292 struct clk *
2293 tegra_clk_register_pllu_tegra114(const char *name, const char *parent_name,
2294                                  void __iomem *clk_base, unsigned long flags,
2295                                  struct tegra_clk_pll_params *pll_params,
2296                                  spinlock_t *lock)
2297 {
2298         struct tegra_clk_pll *pll;
2299         struct clk *clk;
2300
2301         pll_params->flags |= TEGRA_PLLU;
2302
2303         pll = _tegra_init_pll(clk_base, NULL, pll_params, lock);
2304         if (IS_ERR(pll))
2305                 return ERR_CAST(pll);
2306
2307         clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2308                                       &tegra_clk_pllu_tegra114_ops);
2309         if (IS_ERR(clk))
2310                 kfree(pll);
2311
2312         return clk;
2313 }
2314 #endif
2315
2316 #if defined(CONFIG_ARCH_TEGRA_124_SOC) || defined(CONFIG_ARCH_TEGRA_132_SOC) || defined(CONFIG_ARCH_TEGRA_210_SOC)
2317 static const struct clk_ops tegra_clk_pllss_ops = {
2318         .is_enabled = clk_pll_is_enabled,
2319         .enable = clk_pll_enable,
2320         .disable = clk_pll_disable,
2321         .recalc_rate = clk_pll_recalc_rate,
2322         .round_rate = clk_pll_ramp_round_rate,
2323         .set_rate = clk_pllxc_set_rate,
2324         .restore_context = tegra_clk_pll_restore_context,
2325 };
2326
2327 struct clk *tegra_clk_register_pllss(const char *name, const char *parent_name,
2328                                 void __iomem *clk_base, unsigned long flags,
2329                                 struct tegra_clk_pll_params *pll_params,
2330                                 spinlock_t *lock)
2331 {
2332         struct tegra_clk_pll *pll;
2333         struct clk *clk, *parent;
2334         struct tegra_clk_pll_freq_table cfg;
2335         unsigned long parent_rate;
2336         u32 val, val_iddq;
2337         int i;
2338
2339         if (!pll_params->div_nmp)
2340                 return ERR_PTR(-EINVAL);
2341
2342         parent = __clk_lookup(parent_name);
2343         if (!parent) {
2344                 WARN(1, "parent clk %s of %s must be registered first\n",
2345                         parent_name, name);
2346                 return ERR_PTR(-EINVAL);
2347         }
2348
2349         pll = _tegra_init_pll(clk_base, NULL, pll_params, lock);
2350         if (IS_ERR(pll))
2351                 return ERR_CAST(pll);
2352
2353         val = pll_readl_base(pll);
2354         val &= ~PLLSS_REF_SRC_SEL_MASK;
2355         pll_writel_base(val, pll);
2356
2357         parent_rate = clk_get_rate(parent);
2358
2359         pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2360
2361         /* initialize PLL to minimum rate */
2362
2363         cfg.m = _pll_fixed_mdiv(pll_params, parent_rate);
2364         cfg.n = cfg.m * pll_params->vco_min / parent_rate;
2365
2366         for (i = 0; pll_params->pdiv_tohw[i].pdiv; i++)
2367                 ;
2368         if (!i) {
2369                 kfree(pll);
2370                 return ERR_PTR(-EINVAL);
2371         }
2372
2373         cfg.p = pll_params->pdiv_tohw[i-1].hw_val;
2374
2375         _update_pll_mnp(pll, &cfg);
2376
2377         pll_writel_misc(PLLSS_MISC_DEFAULT, pll);
2378         pll_writel(PLLSS_CFG_DEFAULT, pll_params->ext_misc_reg[0], pll);
2379         pll_writel(PLLSS_CTRL1_DEFAULT, pll_params->ext_misc_reg[1], pll);
2380         pll_writel(PLLSS_CTRL1_DEFAULT, pll_params->ext_misc_reg[2], pll);
2381
2382         val = pll_readl_base(pll);
2383         val_iddq = readl_relaxed(clk_base + pll_params->iddq_reg);
2384         if (val & PLL_BASE_ENABLE) {
2385                 if (val_iddq & BIT(pll_params->iddq_bit_idx)) {
2386                         WARN(1, "%s is on but IDDQ set\n", name);
2387                         kfree(pll);
2388                         return ERR_PTR(-EINVAL);
2389                 }
2390         } else {
2391                 val_iddq |= BIT(pll_params->iddq_bit_idx);
2392                 writel_relaxed(val_iddq, clk_base + pll_params->iddq_reg);
2393         }
2394
2395         val &= ~PLLSS_LOCK_OVERRIDE;
2396         pll_writel_base(val, pll);
2397
2398         clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2399                                         &tegra_clk_pllss_ops);
2400
2401         if (IS_ERR(clk))
2402                 kfree(pll);
2403
2404         return clk;
2405 }
2406 #endif
2407
2408 #if defined(CONFIG_ARCH_TEGRA_210_SOC)
2409 struct clk *tegra_clk_register_pllre_tegra210(const char *name,
2410                           const char *parent_name, void __iomem *clk_base,
2411                           void __iomem *pmc, unsigned long flags,
2412                           struct tegra_clk_pll_params *pll_params,
2413                           spinlock_t *lock, unsigned long parent_rate)
2414 {
2415         struct tegra_clk_pll *pll;
2416         struct clk *clk;
2417
2418         pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2419
2420         if (pll_params->adjust_vco)
2421                 pll_params->vco_min = pll_params->adjust_vco(pll_params,
2422                                                              parent_rate);
2423
2424         pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
2425         if (IS_ERR(pll))
2426                 return ERR_CAST(pll);
2427
2428         clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2429                                       &tegra_clk_pll_ops);
2430         if (IS_ERR(clk))
2431                 kfree(pll);
2432
2433         return clk;
2434 }
2435
2436 static int clk_plle_tegra210_is_enabled(struct clk_hw *hw)
2437 {
2438         struct tegra_clk_pll *pll = to_clk_pll(hw);
2439         u32 val;
2440
2441         val = pll_readl_base(pll);
2442
2443         return val & PLLE_BASE_ENABLE ? 1 : 0;
2444 }
2445
2446 static int clk_plle_tegra210_enable(struct clk_hw *hw)
2447 {
2448         struct tegra_clk_pll *pll = to_clk_pll(hw);
2449         struct tegra_clk_pll_freq_table sel;
2450         u32 val;
2451         int ret = 0;
2452         unsigned long flags = 0;
2453         unsigned long input_rate;
2454
2455         if (clk_plle_tegra210_is_enabled(hw))
2456                 return 0;
2457
2458         input_rate = clk_hw_get_rate(clk_hw_get_parent(hw));
2459
2460         if (_get_table_rate(hw, &sel, pll->params->fixed_rate, input_rate))
2461                 return -EINVAL;
2462
2463         if (pll->lock)
2464                 spin_lock_irqsave(pll->lock, flags);
2465
2466         val = pll_readl(pll->params->aux_reg, pll);
2467         if (val & PLLE_AUX_SEQ_ENABLE)
2468                 goto out;
2469
2470         val = pll_readl_base(pll);
2471         val &= ~BIT(30); /* Disable lock override */
2472         pll_writel_base(val, pll);
2473
2474         val = pll_readl_misc(pll);
2475         val |= PLLE_MISC_LOCK_ENABLE;
2476         val |= PLLE_MISC_IDDQ_SW_CTRL;
2477         val &= ~PLLE_MISC_IDDQ_SW_VALUE;
2478         val |= PLLE_MISC_PLLE_PTS;
2479         val &= ~(PLLE_MISC_VREG_BG_CTRL_MASK | PLLE_MISC_VREG_CTRL_MASK);
2480         pll_writel_misc(val, pll);
2481         udelay(5);
2482
2483         val = pll_readl(PLLE_SS_CTRL, pll);
2484         val |= PLLE_SS_DISABLE;
2485         pll_writel(val, PLLE_SS_CTRL, pll);
2486
2487         val = pll_readl_base(pll);
2488         val &= ~(divp_mask_shifted(pll) | divn_mask_shifted(pll) |
2489                  divm_mask_shifted(pll));
2490         val &= ~(PLLE_BASE_DIVCML_MASK << PLLE_BASE_DIVCML_SHIFT);
2491         val |= sel.m << divm_shift(pll);
2492         val |= sel.n << divn_shift(pll);
2493         val |= sel.cpcon << PLLE_BASE_DIVCML_SHIFT;
2494         pll_writel_base(val, pll);
2495         udelay(1);
2496
2497         val = pll_readl_base(pll);
2498         val |= PLLE_BASE_ENABLE;
2499         pll_writel_base(val, pll);
2500
2501         ret = clk_pll_wait_for_lock(pll);
2502
2503         if (ret < 0)
2504                 goto out;
2505
2506         val = pll_readl(PLLE_SS_CTRL, pll);
2507         val &= ~(PLLE_SS_CNTL_CENTER | PLLE_SS_CNTL_INVERT);
2508         val &= ~PLLE_SS_COEFFICIENTS_MASK;
2509         val |= PLLE_SS_COEFFICIENTS_VAL_TEGRA210;
2510         pll_writel(val, PLLE_SS_CTRL, pll);
2511         val &= ~(PLLE_SS_CNTL_SSC_BYP | PLLE_SS_CNTL_BYPASS_SS);
2512         pll_writel(val, PLLE_SS_CTRL, pll);
2513         udelay(1);
2514         val &= ~PLLE_SS_CNTL_INTERP_RESET;
2515         pll_writel(val, PLLE_SS_CTRL, pll);
2516         udelay(1);
2517
2518 out:
2519         if (pll->lock)
2520                 spin_unlock_irqrestore(pll->lock, flags);
2521
2522         return ret;
2523 }
2524
2525 static void clk_plle_tegra210_disable(struct clk_hw *hw)
2526 {
2527         struct tegra_clk_pll *pll = to_clk_pll(hw);
2528         unsigned long flags = 0;
2529         u32 val;
2530
2531         if (pll->lock)
2532                 spin_lock_irqsave(pll->lock, flags);
2533
2534         /* If PLLE HW sequencer is enabled, SW should not disable PLLE */
2535         val = pll_readl(pll->params->aux_reg, pll);
2536         if (val & PLLE_AUX_SEQ_ENABLE)
2537                 goto out;
2538
2539         val = pll_readl_base(pll);
2540         val &= ~PLLE_BASE_ENABLE;
2541         pll_writel_base(val, pll);
2542
2543         val = pll_readl(pll->params->aux_reg, pll);
2544         val |= PLLE_AUX_ENABLE_SWCTL | PLLE_AUX_SS_SWCTL;
2545         pll_writel(val, pll->params->aux_reg, pll);
2546
2547         val = pll_readl_misc(pll);
2548         val |= PLLE_MISC_IDDQ_SW_CTRL | PLLE_MISC_IDDQ_SW_VALUE;
2549         pll_writel_misc(val, pll);
2550         udelay(1);
2551
2552 out:
2553         if (pll->lock)
2554                 spin_unlock_irqrestore(pll->lock, flags);
2555 }
2556
2557 static void tegra_clk_plle_t210_restore_context(struct clk_hw *hw)
2558 {
2559         struct tegra_clk_pll *pll = to_clk_pll(hw);
2560
2561         _clk_plle_tegra_init_parent(pll);
2562 }
2563
2564 static const struct clk_ops tegra_clk_plle_tegra210_ops = {
2565         .is_enabled =  clk_plle_tegra210_is_enabled,
2566         .enable = clk_plle_tegra210_enable,
2567         .disable = clk_plle_tegra210_disable,
2568         .recalc_rate = clk_pll_recalc_rate,
2569         .restore_context = tegra_clk_plle_t210_restore_context,
2570 };
2571
2572 struct clk *tegra_clk_register_plle_tegra210(const char *name,
2573                                 const char *parent_name,
2574                                 void __iomem *clk_base, unsigned long flags,
2575                                 struct tegra_clk_pll_params *pll_params,
2576                                 spinlock_t *lock)
2577 {
2578         struct tegra_clk_pll *pll;
2579         struct clk *clk;
2580
2581         pll = _tegra_init_pll(clk_base, NULL, pll_params, lock);
2582         if (IS_ERR(pll))
2583                 return ERR_CAST(pll);
2584
2585         _clk_plle_tegra_init_parent(pll);
2586
2587         clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2588                                       &tegra_clk_plle_tegra210_ops);
2589         if (IS_ERR(clk))
2590                 kfree(pll);
2591
2592         return clk;
2593 }
2594
2595 struct clk *tegra_clk_register_pllc_tegra210(const char *name,
2596                         const char *parent_name, void __iomem *clk_base,
2597                         void __iomem *pmc, unsigned long flags,
2598                         struct tegra_clk_pll_params *pll_params,
2599                         spinlock_t *lock)
2600 {
2601         struct clk *parent, *clk;
2602         const struct pdiv_map *p_tohw = pll_params->pdiv_tohw;
2603         struct tegra_clk_pll *pll;
2604         unsigned long parent_rate;
2605
2606         if (!p_tohw)
2607                 return ERR_PTR(-EINVAL);
2608
2609         parent = __clk_lookup(parent_name);
2610         if (!parent) {
2611                 WARN(1, "parent clk %s of %s must be registered first\n",
2612                         name, parent_name);
2613                 return ERR_PTR(-EINVAL);
2614         }
2615
2616         parent_rate = clk_get_rate(parent);
2617
2618         pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2619
2620         if (pll_params->adjust_vco)
2621                 pll_params->vco_min = pll_params->adjust_vco(pll_params,
2622                                                              parent_rate);
2623
2624         pll_params->flags |= TEGRA_PLL_BYPASS;
2625         pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
2626         if (IS_ERR(pll))
2627                 return ERR_CAST(pll);
2628
2629         clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2630                                       &tegra_clk_pll_ops);
2631         if (IS_ERR(clk))
2632                 kfree(pll);
2633
2634         return clk;
2635 }
2636
2637 struct clk *tegra_clk_register_pllss_tegra210(const char *name,
2638                                 const char *parent_name, void __iomem *clk_base,
2639                                 unsigned long flags,
2640                                 struct tegra_clk_pll_params *pll_params,
2641                                 spinlock_t *lock)
2642 {
2643         struct tegra_clk_pll *pll;
2644         struct clk *clk, *parent;
2645         unsigned long parent_rate;
2646         u32 val;
2647
2648         if (!pll_params->div_nmp)
2649                 return ERR_PTR(-EINVAL);
2650
2651         parent = __clk_lookup(parent_name);
2652         if (!parent) {
2653                 WARN(1, "parent clk %s of %s must be registered first\n",
2654                         name, parent_name);
2655                 return ERR_PTR(-EINVAL);
2656         }
2657
2658         val = readl_relaxed(clk_base + pll_params->base_reg);
2659         if (val & PLLSS_REF_SRC_SEL_MASK) {
2660                 WARN(1, "not supported reference clock for %s\n", name);
2661                 return ERR_PTR(-EINVAL);
2662         }
2663
2664         parent_rate = clk_get_rate(parent);
2665
2666         pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2667
2668         if (pll_params->adjust_vco)
2669                 pll_params->vco_min = pll_params->adjust_vco(pll_params,
2670                                                              parent_rate);
2671
2672         pll_params->flags |= TEGRA_PLL_BYPASS;
2673         pll = _tegra_init_pll(clk_base, NULL, pll_params, lock);
2674         if (IS_ERR(pll))
2675                 return ERR_CAST(pll);
2676
2677         clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2678                                         &tegra_clk_pll_ops);
2679
2680         if (IS_ERR(clk))
2681                 kfree(pll);
2682
2683         return clk;
2684 }
2685
2686 struct clk *tegra_clk_register_pllmb(const char *name, const char *parent_name,
2687                           void __iomem *clk_base, void __iomem *pmc,
2688                           unsigned long flags,
2689                           struct tegra_clk_pll_params *pll_params,
2690                           spinlock_t *lock)
2691 {
2692         struct tegra_clk_pll *pll;
2693         struct clk *clk, *parent;
2694         unsigned long parent_rate;
2695
2696         if (!pll_params->pdiv_tohw)
2697                 return ERR_PTR(-EINVAL);
2698
2699         parent = __clk_lookup(parent_name);
2700         if (!parent) {
2701                 WARN(1, "parent clk %s of %s must be registered first\n",
2702                         parent_name, name);
2703                 return ERR_PTR(-EINVAL);
2704         }
2705
2706         parent_rate = clk_get_rate(parent);
2707
2708         pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate);
2709
2710         if (pll_params->adjust_vco)
2711                 pll_params->vco_min = pll_params->adjust_vco(pll_params,
2712                                                              parent_rate);
2713
2714         pll_params->flags |= TEGRA_PLL_BYPASS;
2715         pll_params->flags |= TEGRA_PLLMB;
2716         pll = _tegra_init_pll(clk_base, pmc, pll_params, lock);
2717         if (IS_ERR(pll))
2718                 return ERR_CAST(pll);
2719
2720         clk = _tegra_clk_register_pll(pll, name, parent_name, flags,
2721                                       &tegra_clk_pll_ops);
2722         if (IS_ERR(clk))
2723                 kfree(pll);
2724
2725         return clk;
2726 }
2727
2728 #endif