Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. |
| 3 | * |
dp-arm | fa3cf0b | 2017-05-03 09:38:09 +0100 | [diff] [blame] | 4 | * SPDX-License-Identifier: BSD-3-Clause |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 5 | */ |
Isla Mitchell | e363146 | 2017-07-14 10:46:32 +0100 | [diff] [blame] | 6 | |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 7 | #include <arch_helpers.h> |
Isla Mitchell | e363146 | 2017-07-14 10:46:32 +0100 | [diff] [blame] | 8 | #include <debug.h> |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 9 | #include <dram.h> |
Isla Mitchell | e363146 | 2017-07-14 10:46:32 +0100 | [diff] [blame] | 10 | #include <plat_private.h> |
| 11 | #include <platform_def.h> |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 12 | #include <pmu_regs.h> |
| 13 | #include <rk3399_def.h> |
Xing Zheng | 22a9871 | 2017-02-24 14:56:41 +0800 | [diff] [blame] | 14 | #include <secure.h> |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 15 | #include <soc.h> |
| 16 | #include <suspend.h> |
| 17 | |
| 18 | #define PMUGRF_OS_REG0 0x300 |
| 19 | #define PMUGRF_OS_REG1 0x304 |
| 20 | #define PMUGRF_OS_REG2 0x308 |
| 21 | #define PMUGRF_OS_REG3 0x30c |
| 22 | |
| 23 | #define CRU_SFTRST_DDR_CTRL(ch, n) ((0x1 << (8 + 16 + (ch) * 4)) | \ |
| 24 | ((n) << (8 + (ch) * 4))) |
| 25 | #define CRU_SFTRST_DDR_PHY(ch, n) ((0x1 << (9 + 16 + (ch) * 4)) | \ |
| 26 | ((n) << (9 + (ch) * 4))) |
| 27 | |
| 28 | #define FBDIV_ENC(n) ((n) << 16) |
| 29 | #define FBDIV_DEC(n) (((n) >> 16) & 0xfff) |
| 30 | #define POSTDIV2_ENC(n) ((n) << 12) |
| 31 | #define POSTDIV2_DEC(n) (((n) >> 12) & 0x7) |
| 32 | #define POSTDIV1_ENC(n) ((n) << 8) |
| 33 | #define POSTDIV1_DEC(n) (((n) >> 8) & 0x7) |
| 34 | #define REFDIV_ENC(n) (n) |
| 35 | #define REFDIV_DEC(n) ((n) & 0x3f) |
| 36 | |
| 37 | /* PMU CRU */ |
| 38 | #define PMUCRU_RSTNHOLD_CON0 0x120 |
| 39 | #define PMUCRU_RSTNHOLD_CON1 0x124 |
| 40 | |
| 41 | #define PRESET_GPIO0_HOLD(n) (((n) << 7) | WMSK_BIT(7)) |
| 42 | #define PRESET_GPIO1_HOLD(n) (((n) << 8) | WMSK_BIT(8)) |
| 43 | |
| 44 | #define SYS_COUNTER_FREQ_IN_MHZ (SYS_COUNTER_FREQ_IN_TICKS / 1000000) |
| 45 | |
| 46 | /* |
| 47 | * Copy @num registers from @src to @dst |
| 48 | */ |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 49 | static __pmusramfunc void sram_regcpy(uintptr_t dst, uintptr_t src, |
| 50 | uint32_t num) |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 51 | { |
| 52 | while (num--) { |
| 53 | mmio_write_32(dst, mmio_read_32(src)); |
| 54 | dst += sizeof(uint32_t); |
| 55 | src += sizeof(uint32_t); |
| 56 | } |
| 57 | } |
| 58 | |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 59 | /* |
| 60 | * Copy @num registers from @src to @dst |
| 61 | * This is intentionally a copy of the sram_regcpy function. PMUSRAM functions |
| 62 | * cannot be called from code running in DRAM. |
| 63 | */ |
| 64 | static void dram_regcpy(uintptr_t dst, uintptr_t src, uint32_t num) |
| 65 | { |
| 66 | while (num--) { |
| 67 | mmio_write_32(dst, mmio_read_32(src)); |
| 68 | dst += sizeof(uint32_t); |
| 69 | src += sizeof(uint32_t); |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | static __pmusramfunc uint32_t sram_get_timer_value(void) |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 74 | { |
| 75 | /* |
| 76 | * Generic delay timer implementation expects the timer to be a down |
| 77 | * counter. We apply bitwise NOT operator to the tick values returned |
| 78 | * by read_cntpct_el0() to simulate the down counter. |
| 79 | */ |
| 80 | return (uint32_t)(~read_cntpct_el0()); |
| 81 | } |
| 82 | |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 83 | static __pmusramfunc void sram_udelay(uint32_t usec) |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 84 | { |
| 85 | uint32_t start, cnt, delta, delta_us; |
| 86 | |
| 87 | /* counter is decreasing */ |
| 88 | start = sram_get_timer_value(); |
| 89 | do { |
| 90 | cnt = sram_get_timer_value(); |
| 91 | if (cnt > start) { |
| 92 | delta = UINT32_MAX - cnt; |
| 93 | delta += start; |
| 94 | } else |
| 95 | delta = start - cnt; |
| 96 | delta_us = (delta * SYS_COUNTER_FREQ_IN_MHZ); |
| 97 | } while (delta_us < usec); |
| 98 | } |
| 99 | |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 100 | static __pmusramfunc void configure_sgrf(void) |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 101 | { |
| 102 | /* |
| 103 | * SGRF_DDR_RGN_DPLL_CLK and SGRF_DDR_RGN_RTC_CLK: |
| 104 | * IC ECO bug, need to set this register. |
| 105 | * |
| 106 | * SGRF_DDR_RGN_BYPS: |
| 107 | * After the PD_CENTER suspend/resume, the DDR region |
| 108 | * related registers in the SGRF will be reset, we |
| 109 | * need to re-initialize them. |
| 110 | */ |
| 111 | mmio_write_32(SGRF_BASE + SGRF_DDRRGN_CON0_16(16), |
| 112 | SGRF_DDR_RGN_DPLL_CLK | |
| 113 | SGRF_DDR_RGN_RTC_CLK | |
| 114 | SGRF_DDR_RGN_BYPS); |
| 115 | } |
| 116 | |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 117 | static __pmusramfunc void rkclk_ddr_reset(uint32_t channel, uint32_t ctl, |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 118 | uint32_t phy) |
| 119 | { |
| 120 | channel &= 0x1; |
| 121 | ctl &= 0x1; |
| 122 | phy &= 0x1; |
| 123 | mmio_write_32(CRU_BASE + CRU_SOFTRST_CON(4), |
| 124 | CRU_SFTRST_DDR_CTRL(channel, ctl) | |
| 125 | CRU_SFTRST_DDR_PHY(channel, phy)); |
| 126 | } |
| 127 | |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 128 | static __pmusramfunc void phy_pctrl_reset(uint32_t ch) |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 129 | { |
| 130 | rkclk_ddr_reset(ch, 1, 1); |
| 131 | sram_udelay(10); |
| 132 | rkclk_ddr_reset(ch, 1, 0); |
| 133 | sram_udelay(10); |
| 134 | rkclk_ddr_reset(ch, 0, 0); |
| 135 | sram_udelay(10); |
| 136 | } |
| 137 | |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 138 | static __pmusramfunc void set_cs_training_index(uint32_t ch, uint32_t rank) |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 139 | { |
Derek Basehore | 7b4d898 | 2017-05-12 21:29:13 -0700 | [diff] [blame] | 140 | uint32_t byte; |
| 141 | |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 142 | /* PHY_8/136/264/392 phy_per_cs_training_index_X 1bit offset_24 */ |
Derek Basehore | 7b4d898 | 2017-05-12 21:29:13 -0700 | [diff] [blame] | 143 | for (byte = 0; byte < 4; byte++) |
| 144 | mmio_clrsetbits_32(PHY_REG(ch, 8 + (128 * byte)), 0x1 << 24, |
| 145 | rank << 24); |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 146 | } |
| 147 | |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 148 | static __pmusramfunc void select_per_cs_training_index(uint32_t ch, |
| 149 | uint32_t rank) |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 150 | { |
| 151 | /* PHY_84 PHY_PER_CS_TRAINING_EN_0 1bit offset_16 */ |
| 152 | if ((mmio_read_32(PHY_REG(ch, 84)) >> 16) & 1) |
| 153 | set_cs_training_index(ch, rank); |
| 154 | } |
| 155 | |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 156 | static __pmusramfunc void override_write_leveling_value(uint32_t ch) |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 157 | { |
| 158 | uint32_t byte; |
| 159 | |
Derek Basehore | 7b4d898 | 2017-05-12 21:29:13 -0700 | [diff] [blame] | 160 | for (byte = 0; byte < 4; byte++) { |
| 161 | /* |
| 162 | * PHY_8/136/264/392 |
| 163 | * phy_per_cs_training_multicast_en_X 1bit offset_16 |
| 164 | */ |
| 165 | mmio_clrsetbits_32(PHY_REG(ch, 8 + (128 * byte)), 0x1 << 16, |
| 166 | 1 << 16); |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 167 | mmio_clrsetbits_32(PHY_REG(ch, 63 + (128 * byte)), |
| 168 | 0xffff << 16, |
| 169 | 0x200 << 16); |
Derek Basehore | 7b4d898 | 2017-05-12 21:29:13 -0700 | [diff] [blame] | 170 | } |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 171 | |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 172 | /* CTL_200 ctrlupd_req 1bit offset_8 */ |
| 173 | mmio_clrsetbits_32(CTL_REG(ch, 200), 0x1 << 8, 0x1 << 8); |
| 174 | } |
| 175 | |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 176 | static __pmusramfunc int data_training(uint32_t ch, |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 177 | struct rk3399_sdram_params *sdram_params, |
| 178 | uint32_t training_flag) |
| 179 | { |
| 180 | uint32_t obs_0, obs_1, obs_2, obs_3, obs_err = 0; |
| 181 | uint32_t rank = sdram_params->ch[ch].rank; |
| 182 | uint32_t rank_mask; |
| 183 | uint32_t i, tmp; |
| 184 | |
| 185 | if (sdram_params->dramtype == LPDDR4) |
| 186 | rank_mask = (rank == 1) ? 0x5 : 0xf; |
| 187 | else |
| 188 | rank_mask = (rank == 1) ? 0x1 : 0x3; |
| 189 | |
| 190 | /* PHY_927 PHY_PAD_DQS_DRIVE RPULL offset_22 */ |
| 191 | mmio_setbits_32(PHY_REG(ch, 927), (1 << 22)); |
| 192 | |
| 193 | if (training_flag == PI_FULL_TRAINING) { |
| 194 | if (sdram_params->dramtype == LPDDR4) { |
| 195 | training_flag = PI_WRITE_LEVELING | |
| 196 | PI_READ_GATE_TRAINING | |
| 197 | PI_READ_LEVELING | |
| 198 | PI_WDQ_LEVELING; |
| 199 | } else if (sdram_params->dramtype == LPDDR3) { |
| 200 | training_flag = PI_CA_TRAINING | PI_WRITE_LEVELING | |
| 201 | PI_READ_GATE_TRAINING; |
| 202 | } else if (sdram_params->dramtype == DDR3) { |
| 203 | training_flag = PI_WRITE_LEVELING | |
| 204 | PI_READ_GATE_TRAINING | |
| 205 | PI_READ_LEVELING; |
| 206 | } |
| 207 | } |
| 208 | |
| 209 | /* ca training(LPDDR4,LPDDR3 support) */ |
| 210 | if ((training_flag & PI_CA_TRAINING) == PI_CA_TRAINING) { |
| 211 | for (i = 0; i < 4; i++) { |
| 212 | if (!(rank_mask & (1 << i))) |
| 213 | continue; |
| 214 | |
| 215 | select_per_cs_training_index(ch, i); |
| 216 | /* PI_100 PI_CALVL_EN:RW:8:2 */ |
| 217 | mmio_clrsetbits_32(PI_REG(ch, 100), 0x3 << 8, 0x2 << 8); |
| 218 | |
| 219 | /* PI_92 PI_CALVL_REQ:WR:16:1,PI_CALVL_CS:RW:24:2 */ |
| 220 | mmio_clrsetbits_32(PI_REG(ch, 92), |
| 221 | (0x1 << 16) | (0x3 << 24), |
| 222 | (0x1 << 16) | (i << 24)); |
| 223 | while (1) { |
| 224 | /* PI_174 PI_INT_STATUS:RD:8:18 */ |
| 225 | tmp = mmio_read_32(PI_REG(ch, 174)) >> 8; |
| 226 | |
| 227 | /* |
| 228 | * check status obs |
| 229 | * PHY_532/660/788 phy_adr_calvl_obs1_:0:32 |
| 230 | */ |
| 231 | obs_0 = mmio_read_32(PHY_REG(ch, 532)); |
| 232 | obs_1 = mmio_read_32(PHY_REG(ch, 660)); |
| 233 | obs_2 = mmio_read_32(PHY_REG(ch, 788)); |
| 234 | if (((obs_0 >> 30) & 0x3) || |
| 235 | ((obs_1 >> 30) & 0x3) || |
| 236 | ((obs_2 >> 30) & 0x3)) |
| 237 | obs_err = 1; |
| 238 | if ((((tmp >> 11) & 0x1) == 0x1) && |
| 239 | (((tmp >> 13) & 0x1) == 0x1) && |
| 240 | (((tmp >> 5) & 0x1) == 0x0) && |
| 241 | (obs_err == 0)) |
| 242 | break; |
| 243 | else if ((((tmp >> 5) & 0x1) == 0x1) || |
| 244 | (obs_err == 1)) |
| 245 | return -1; |
| 246 | } |
| 247 | /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ |
| 248 | mmio_write_32(PI_REG(ch, 175), 0x00003f7c); |
| 249 | } |
| 250 | mmio_clrbits_32(PI_REG(ch, 100), 0x3 << 8); |
| 251 | } |
| 252 | |
| 253 | /* write leveling(LPDDR4,LPDDR3,DDR3 support) */ |
| 254 | if ((training_flag & PI_WRITE_LEVELING) == PI_WRITE_LEVELING) { |
| 255 | for (i = 0; i < rank; i++) { |
| 256 | select_per_cs_training_index(ch, i); |
| 257 | /* PI_60 PI_WRLVL_EN:RW:8:2 */ |
| 258 | mmio_clrsetbits_32(PI_REG(ch, 60), 0x3 << 8, 0x2 << 8); |
| 259 | /* PI_59 PI_WRLVL_REQ:WR:8:1,PI_WRLVL_CS:RW:16:2 */ |
| 260 | mmio_clrsetbits_32(PI_REG(ch, 59), |
| 261 | (0x1 << 8) | (0x3 << 16), |
| 262 | (0x1 << 8) | (i << 16)); |
| 263 | |
| 264 | while (1) { |
| 265 | /* PI_174 PI_INT_STATUS:RD:8:18 */ |
| 266 | tmp = mmio_read_32(PI_REG(ch, 174)) >> 8; |
| 267 | |
| 268 | /* |
| 269 | * check status obs, if error maybe can not |
| 270 | * get leveling done PHY_40/168/296/424 |
| 271 | * phy_wrlvl_status_obs_X:0:13 |
| 272 | */ |
| 273 | obs_0 = mmio_read_32(PHY_REG(ch, 40)); |
| 274 | obs_1 = mmio_read_32(PHY_REG(ch, 168)); |
| 275 | obs_2 = mmio_read_32(PHY_REG(ch, 296)); |
| 276 | obs_3 = mmio_read_32(PHY_REG(ch, 424)); |
| 277 | if (((obs_0 >> 12) & 0x1) || |
| 278 | ((obs_1 >> 12) & 0x1) || |
| 279 | ((obs_2 >> 12) & 0x1) || |
| 280 | ((obs_3 >> 12) & 0x1)) |
| 281 | obs_err = 1; |
| 282 | if ((((tmp >> 10) & 0x1) == 0x1) && |
| 283 | (((tmp >> 13) & 0x1) == 0x1) && |
| 284 | (((tmp >> 4) & 0x1) == 0x0) && |
| 285 | (obs_err == 0)) |
| 286 | break; |
| 287 | else if ((((tmp >> 4) & 0x1) == 0x1) || |
| 288 | (obs_err == 1)) |
| 289 | return -1; |
| 290 | } |
| 291 | |
| 292 | /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ |
| 293 | mmio_write_32(PI_REG(ch, 175), 0x00003f7c); |
| 294 | } |
| 295 | override_write_leveling_value(ch); |
| 296 | mmio_clrbits_32(PI_REG(ch, 60), 0x3 << 8); |
| 297 | } |
| 298 | |
| 299 | /* read gate training(LPDDR4,LPDDR3,DDR3 support) */ |
| 300 | if ((training_flag & PI_READ_GATE_TRAINING) == PI_READ_GATE_TRAINING) { |
| 301 | for (i = 0; i < rank; i++) { |
| 302 | select_per_cs_training_index(ch, i); |
| 303 | /* PI_80 PI_RDLVL_GATE_EN:RW:24:2 */ |
| 304 | mmio_clrsetbits_32(PI_REG(ch, 80), 0x3 << 24, |
| 305 | 0x2 << 24); |
| 306 | /* |
| 307 | * PI_74 PI_RDLVL_GATE_REQ:WR:16:1 |
| 308 | * PI_RDLVL_CS:RW:24:2 |
| 309 | */ |
| 310 | mmio_clrsetbits_32(PI_REG(ch, 74), |
| 311 | (0x1 << 16) | (0x3 << 24), |
| 312 | (0x1 << 16) | (i << 24)); |
| 313 | |
| 314 | while (1) { |
| 315 | /* PI_174 PI_INT_STATUS:RD:8:18 */ |
| 316 | tmp = mmio_read_32(PI_REG(ch, 174)) >> 8; |
| 317 | |
| 318 | /* |
| 319 | * check status obs |
| 320 | * PHY_43/171/299/427 |
| 321 | * PHY_GTLVL_STATUS_OBS_x:16:8 |
| 322 | */ |
| 323 | obs_0 = mmio_read_32(PHY_REG(ch, 43)); |
| 324 | obs_1 = mmio_read_32(PHY_REG(ch, 171)); |
| 325 | obs_2 = mmio_read_32(PHY_REG(ch, 299)); |
| 326 | obs_3 = mmio_read_32(PHY_REG(ch, 427)); |
| 327 | if (((obs_0 >> (16 + 6)) & 0x3) || |
| 328 | ((obs_1 >> (16 + 6)) & 0x3) || |
| 329 | ((obs_2 >> (16 + 6)) & 0x3) || |
| 330 | ((obs_3 >> (16 + 6)) & 0x3)) |
| 331 | obs_err = 1; |
| 332 | if ((((tmp >> 9) & 0x1) == 0x1) && |
| 333 | (((tmp >> 13) & 0x1) == 0x1) && |
| 334 | (((tmp >> 3) & 0x1) == 0x0) && |
| 335 | (obs_err == 0)) |
| 336 | break; |
| 337 | else if ((((tmp >> 3) & 0x1) == 0x1) || |
| 338 | (obs_err == 1)) |
| 339 | return -1; |
| 340 | } |
| 341 | /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ |
| 342 | mmio_write_32(PI_REG(ch, 175), 0x00003f7c); |
| 343 | } |
| 344 | mmio_clrbits_32(PI_REG(ch, 80), 0x3 << 24); |
| 345 | } |
| 346 | |
| 347 | /* read leveling(LPDDR4,LPDDR3,DDR3 support) */ |
| 348 | if ((training_flag & PI_READ_LEVELING) == PI_READ_LEVELING) { |
| 349 | for (i = 0; i < rank; i++) { |
| 350 | select_per_cs_training_index(ch, i); |
| 351 | /* PI_80 PI_RDLVL_EN:RW:16:2 */ |
| 352 | mmio_clrsetbits_32(PI_REG(ch, 80), 0x3 << 16, |
| 353 | 0x2 << 16); |
| 354 | /* PI_74 PI_RDLVL_REQ:WR:8:1,PI_RDLVL_CS:RW:24:2 */ |
| 355 | mmio_clrsetbits_32(PI_REG(ch, 74), |
| 356 | (0x1 << 8) | (0x3 << 24), |
| 357 | (0x1 << 8) | (i << 24)); |
| 358 | while (1) { |
| 359 | /* PI_174 PI_INT_STATUS:RD:8:18 */ |
| 360 | tmp = mmio_read_32(PI_REG(ch, 174)) >> 8; |
| 361 | |
| 362 | /* |
| 363 | * make sure status obs not report error bit |
| 364 | * PHY_46/174/302/430 |
| 365 | * phy_rdlvl_status_obs_X:16:8 |
| 366 | */ |
| 367 | if ((((tmp >> 8) & 0x1) == 0x1) && |
| 368 | (((tmp >> 13) & 0x1) == 0x1) && |
| 369 | (((tmp >> 2) & 0x1) == 0x0)) |
| 370 | break; |
| 371 | else if (((tmp >> 2) & 0x1) == 0x1) |
| 372 | return -1; |
| 373 | } |
| 374 | /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ |
| 375 | mmio_write_32(PI_REG(ch, 175), 0x00003f7c); |
| 376 | } |
| 377 | mmio_clrbits_32(PI_REG(ch, 80), 0x3 << 16); |
| 378 | } |
| 379 | |
| 380 | /* wdq leveling(LPDDR4 support) */ |
| 381 | if ((training_flag & PI_WDQ_LEVELING) == PI_WDQ_LEVELING) { |
| 382 | for (i = 0; i < 4; i++) { |
| 383 | if (!(rank_mask & (1 << i))) |
| 384 | continue; |
| 385 | |
| 386 | select_per_cs_training_index(ch, i); |
| 387 | /* |
| 388 | * disable PI_WDQLVL_VREF_EN before wdq leveling? |
| 389 | * PI_181 PI_WDQLVL_VREF_EN:RW:8:1 |
| 390 | */ |
| 391 | mmio_clrbits_32(PI_REG(ch, 181), 0x1 << 8); |
| 392 | /* PI_124 PI_WDQLVL_EN:RW:16:2 */ |
| 393 | mmio_clrsetbits_32(PI_REG(ch, 124), 0x3 << 16, |
| 394 | 0x2 << 16); |
| 395 | /* PI_121 PI_WDQLVL_REQ:WR:8:1,PI_WDQLVL_CS:RW:16:2 */ |
| 396 | mmio_clrsetbits_32(PI_REG(ch, 121), |
| 397 | (0x1 << 8) | (0x3 << 16), |
| 398 | (0x1 << 8) | (i << 16)); |
| 399 | while (1) { |
| 400 | /* PI_174 PI_INT_STATUS:RD:8:18 */ |
| 401 | tmp = mmio_read_32(PI_REG(ch, 174)) >> 8; |
| 402 | if ((((tmp >> 12) & 0x1) == 0x1) && |
| 403 | (((tmp >> 13) & 0x1) == 0x1) && |
| 404 | (((tmp >> 6) & 0x1) == 0x0)) |
| 405 | break; |
| 406 | else if (((tmp >> 6) & 0x1) == 0x1) |
| 407 | return -1; |
| 408 | } |
| 409 | /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ |
| 410 | mmio_write_32(PI_REG(ch, 175), 0x00003f7c); |
| 411 | } |
| 412 | mmio_clrbits_32(PI_REG(ch, 124), 0x3 << 16); |
| 413 | } |
| 414 | |
| 415 | /* PHY_927 PHY_PAD_DQS_DRIVE RPULL offset_22 */ |
| 416 | mmio_clrbits_32(PHY_REG(ch, 927), (1 << 22)); |
| 417 | |
| 418 | return 0; |
| 419 | } |
| 420 | |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 421 | static __pmusramfunc void set_ddrconfig( |
| 422 | struct rk3399_sdram_params *sdram_params, |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 423 | unsigned char channel, uint32_t ddrconfig) |
| 424 | { |
| 425 | /* only need to set ddrconfig */ |
| 426 | struct rk3399_sdram_channel *ch = &sdram_params->ch[channel]; |
| 427 | unsigned int cs0_cap = 0; |
| 428 | unsigned int cs1_cap = 0; |
| 429 | |
| 430 | cs0_cap = (1 << (ch->cs0_row + ch->col + ch->bk + ch->bw - 20)); |
| 431 | if (ch->rank > 1) |
| 432 | cs1_cap = cs0_cap >> (ch->cs0_row - ch->cs1_row); |
| 433 | if (ch->row_3_4) { |
| 434 | cs0_cap = cs0_cap * 3 / 4; |
| 435 | cs1_cap = cs1_cap * 3 / 4; |
| 436 | } |
| 437 | |
| 438 | mmio_write_32(MSCH_BASE(channel) + MSCH_DEVICECONF, |
| 439 | ddrconfig | (ddrconfig << 6)); |
| 440 | mmio_write_32(MSCH_BASE(channel) + MSCH_DEVICESIZE, |
| 441 | ((cs0_cap / 32) & 0xff) | (((cs1_cap / 32) & 0xff) << 8)); |
| 442 | } |
| 443 | |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 444 | static __pmusramfunc void dram_all_config( |
| 445 | struct rk3399_sdram_params *sdram_params) |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 446 | { |
| 447 | unsigned int i; |
| 448 | |
| 449 | for (i = 0; i < 2; i++) { |
| 450 | struct rk3399_sdram_channel *info = &sdram_params->ch[i]; |
| 451 | struct rk3399_msch_timings *noc = &info->noc_timings; |
| 452 | |
| 453 | if (sdram_params->ch[i].col == 0) |
| 454 | continue; |
| 455 | |
| 456 | mmio_write_32(MSCH_BASE(i) + MSCH_DDRTIMINGA0, |
| 457 | noc->ddrtiminga0.d32); |
| 458 | mmio_write_32(MSCH_BASE(i) + MSCH_DDRTIMINGB0, |
| 459 | noc->ddrtimingb0.d32); |
| 460 | mmio_write_32(MSCH_BASE(i) + MSCH_DDRTIMINGC0, |
| 461 | noc->ddrtimingc0.d32); |
| 462 | mmio_write_32(MSCH_BASE(i) + MSCH_DEVTODEV0, |
| 463 | noc->devtodev0.d32); |
| 464 | mmio_write_32(MSCH_BASE(i) + MSCH_DDRMODE, noc->ddrmode.d32); |
| 465 | |
| 466 | /* rank 1 memory clock disable (dfi_dram_clk_disable = 1) */ |
| 467 | if (sdram_params->ch[i].rank == 1) |
| 468 | mmio_setbits_32(CTL_REG(i, 276), 1 << 17); |
| 469 | } |
| 470 | |
| 471 | DDR_STRIDE(sdram_params->stride); |
| 472 | |
| 473 | /* reboot hold register set */ |
| 474 | mmio_write_32(PMUCRU_BASE + CRU_PMU_RSTHOLD_CON(1), |
| 475 | CRU_PMU_SGRF_RST_RLS | |
| 476 | PRESET_GPIO0_HOLD(1) | |
| 477 | PRESET_GPIO1_HOLD(1)); |
| 478 | mmio_clrsetbits_32(CRU_BASE + CRU_GLB_RST_CON, 0x3, 0x3); |
| 479 | } |
| 480 | |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 481 | static __pmusramfunc void pctl_cfg(uint32_t ch, |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 482 | struct rk3399_sdram_params *sdram_params) |
| 483 | { |
| 484 | const uint32_t *params_ctl = sdram_params->pctl_regs.denali_ctl; |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 485 | const uint32_t *params_pi = sdram_params->pi_regs.denali_pi; |
Derek Basehore | 6af5af0 | 2017-05-05 17:53:33 -0700 | [diff] [blame] | 486 | const struct rk3399_ddr_publ_regs *phy_regs = &sdram_params->phy_regs; |
| 487 | uint32_t tmp, tmp1, tmp2, i; |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 488 | |
| 489 | /* |
| 490 | * Workaround controller bug: |
| 491 | * Do not program DRAM_CLASS until NO_PHY_IND_TRAIN_INT is programmed |
| 492 | */ |
| 493 | sram_regcpy(CTL_REG(ch, 1), (uintptr_t)¶ms_ctl[1], |
| 494 | CTL_REG_NUM - 1); |
| 495 | mmio_write_32(CTL_REG(ch, 0), params_ctl[0]); |
| 496 | sram_regcpy(PI_REG(ch, 0), (uintptr_t)¶ms_pi[0], |
| 497 | PI_REG_NUM); |
| 498 | |
Derek Basehore | 6af5af0 | 2017-05-05 17:53:33 -0700 | [diff] [blame] | 499 | sram_regcpy(PHY_REG(ch, 910), (uintptr_t)&phy_regs->phy896[910 - 896], |
| 500 | 3); |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 501 | |
| 502 | mmio_clrsetbits_32(CTL_REG(ch, 68), PWRUP_SREFRESH_EXIT, |
| 503 | PWRUP_SREFRESH_EXIT); |
| 504 | |
| 505 | /* PHY_DLL_RST_EN */ |
| 506 | mmio_clrsetbits_32(PHY_REG(ch, 957), 0x3 << 24, 1 << 24); |
| 507 | dmbst(); |
| 508 | |
| 509 | mmio_setbits_32(PI_REG(ch, 0), START); |
| 510 | mmio_setbits_32(CTL_REG(ch, 0), START); |
| 511 | |
| 512 | /* wait lock */ |
| 513 | while (1) { |
| 514 | tmp = mmio_read_32(PHY_REG(ch, 920)); |
| 515 | tmp1 = mmio_read_32(PHY_REG(ch, 921)); |
| 516 | tmp2 = mmio_read_32(PHY_REG(ch, 922)); |
| 517 | if ((((tmp >> 16) & 0x1) == 0x1) && |
| 518 | (((tmp1 >> 16) & 0x1) == 0x1) && |
| 519 | (((tmp1 >> 0) & 0x1) == 0x1) && |
| 520 | (((tmp2 >> 0) & 0x1) == 0x1)) |
| 521 | break; |
| 522 | /* if PLL bypass,don't need wait lock */ |
| 523 | if (mmio_read_32(PHY_REG(ch, 911)) & 0x1) |
| 524 | break; |
| 525 | } |
| 526 | |
Derek Basehore | 6af5af0 | 2017-05-05 17:53:33 -0700 | [diff] [blame] | 527 | sram_regcpy(PHY_REG(ch, 896), (uintptr_t)&phy_regs->phy896[0], 63); |
| 528 | |
| 529 | for (i = 0; i < 4; i++) |
| 530 | sram_regcpy(PHY_REG(ch, 128 * i), |
| 531 | (uintptr_t)&phy_regs->phy0[i][0], 91); |
| 532 | |
| 533 | for (i = 0; i < 3; i++) |
| 534 | sram_regcpy(PHY_REG(ch, 512 + 128 * i), |
| 535 | (uintptr_t)&phy_regs->phy512[i][0], 38); |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 536 | } |
| 537 | |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 538 | static __pmusramfunc int dram_switch_to_next_index( |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 539 | struct rk3399_sdram_params *sdram_params) |
| 540 | { |
| 541 | uint32_t ch, ch_count; |
Derek Basehore | e13bc54 | 2017-02-24 14:31:36 +0800 | [diff] [blame] | 542 | uint32_t fn = ((mmio_read_32(CTL_REG(0, 111)) >> 16) + 1) & 0x1; |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 543 | |
| 544 | mmio_write_32(CIC_BASE + CIC_CTRL0, |
| 545 | (((0x3 << 4) | (1 << 2) | 1) << 16) | |
Derek Basehore | e13bc54 | 2017-02-24 14:31:36 +0800 | [diff] [blame] | 546 | (fn << 4) | (1 << 2) | 1); |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 547 | while (!(mmio_read_32(CIC_BASE + CIC_STATUS0) & (1 << 2))) |
| 548 | ; |
| 549 | |
| 550 | mmio_write_32(CIC_BASE + CIC_CTRL0, 0x20002); |
| 551 | while (!(mmio_read_32(CIC_BASE + CIC_STATUS0) & (1 << 0))) |
| 552 | ; |
| 553 | |
| 554 | ch_count = sdram_params->num_channels; |
| 555 | |
| 556 | /* LPDDR4 f2 cann't do training, all training will fail */ |
| 557 | for (ch = 0; ch < ch_count; ch++) { |
| 558 | mmio_clrsetbits_32(PHY_REG(ch, 896), (0x3 << 8) | 1, |
Derek Basehore | e13bc54 | 2017-02-24 14:31:36 +0800 | [diff] [blame] | 559 | fn << 8); |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 560 | |
| 561 | /* data_training failed */ |
| 562 | if (data_training(ch, sdram_params, PI_FULL_TRAINING)) |
| 563 | return -1; |
| 564 | } |
| 565 | |
| 566 | return 0; |
| 567 | } |
| 568 | |
| 569 | /* |
| 570 | * Needs to be done for both channels at once in case of a shared reset signal |
| 571 | * between channels. |
| 572 | */ |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 573 | static __pmusramfunc int pctl_start(uint32_t channel_mask, |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 574 | struct rk3399_sdram_params *sdram_params) |
| 575 | { |
| 576 | uint32_t count; |
Derek Basehore | 04c74b9 | 2017-01-31 00:20:19 -0800 | [diff] [blame] | 577 | uint32_t byte; |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 578 | |
| 579 | mmio_setbits_32(CTL_REG(0, 68), PWRUP_SREFRESH_EXIT); |
| 580 | mmio_setbits_32(CTL_REG(1, 68), PWRUP_SREFRESH_EXIT); |
| 581 | |
| 582 | /* need de-access IO retention before controller START */ |
| 583 | if (channel_mask & (1 << 0)) |
| 584 | mmio_setbits_32(PMU_BASE + PMU_PWRMODE_CON, (1 << 19)); |
| 585 | if (channel_mask & (1 << 1)) |
| 586 | mmio_setbits_32(PMU_BASE + PMU_PWRMODE_CON, (1 << 23)); |
| 587 | |
| 588 | /* PHY_DLL_RST_EN */ |
| 589 | if (channel_mask & (1 << 0)) |
| 590 | mmio_clrsetbits_32(PHY_REG(0, 957), 0x3 << 24, |
| 591 | 0x2 << 24); |
| 592 | if (channel_mask & (1 << 1)) |
| 593 | mmio_clrsetbits_32(PHY_REG(1, 957), 0x3 << 24, |
| 594 | 0x2 << 24); |
| 595 | |
| 596 | /* check ERROR bit */ |
| 597 | if (channel_mask & (1 << 0)) { |
| 598 | count = 0; |
| 599 | while (!(mmio_read_32(CTL_REG(0, 203)) & (1 << 3))) { |
| 600 | /* CKE is low, loop 10ms */ |
| 601 | if (count > 100) |
| 602 | return -1; |
| 603 | |
| 604 | sram_udelay(100); |
| 605 | count++; |
| 606 | } |
| 607 | |
| 608 | mmio_clrbits_32(CTL_REG(0, 68), PWRUP_SREFRESH_EXIT); |
Derek Basehore | 04c74b9 | 2017-01-31 00:20:19 -0800 | [diff] [blame] | 609 | |
| 610 | /* Restore the PHY_RX_CAL_DQS value */ |
| 611 | for (byte = 0; byte < 4; byte++) |
| 612 | mmio_clrsetbits_32(PHY_REG(0, 57 + 128 * byte), |
| 613 | 0xfff << 16, |
| 614 | sdram_params->rx_cal_dqs[0][byte]); |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 615 | } |
| 616 | if (channel_mask & (1 << 1)) { |
| 617 | count = 0; |
| 618 | while (!(mmio_read_32(CTL_REG(1, 203)) & (1 << 3))) { |
| 619 | /* CKE is low, loop 10ms */ |
| 620 | if (count > 100) |
| 621 | return -1; |
| 622 | |
| 623 | sram_udelay(100); |
| 624 | count++; |
| 625 | } |
| 626 | |
| 627 | mmio_clrbits_32(CTL_REG(1, 68), PWRUP_SREFRESH_EXIT); |
Derek Basehore | 04c74b9 | 2017-01-31 00:20:19 -0800 | [diff] [blame] | 628 | |
| 629 | /* Restore the PHY_RX_CAL_DQS value */ |
| 630 | for (byte = 0; byte < 4; byte++) |
| 631 | mmio_clrsetbits_32(PHY_REG(1, 57 + 128 * byte), |
| 632 | 0xfff << 16, |
| 633 | sdram_params->rx_cal_dqs[1][byte]); |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 634 | } |
| 635 | |
| 636 | return 0; |
| 637 | } |
| 638 | |
| 639 | void dmc_save(void) |
| 640 | { |
| 641 | struct rk3399_sdram_params *sdram_params = &sdram_config; |
Derek Basehore | 6af5af0 | 2017-05-05 17:53:33 -0700 | [diff] [blame] | 642 | struct rk3399_ddr_publ_regs *phy_regs; |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 643 | uint32_t *params_ctl; |
| 644 | uint32_t *params_pi; |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 645 | uint32_t refdiv, postdiv2, postdiv1, fbdiv; |
Derek Basehore | 6af5af0 | 2017-05-05 17:53:33 -0700 | [diff] [blame] | 646 | uint32_t tmp, ch, byte, i; |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 647 | |
Derek Basehore | 6af5af0 | 2017-05-05 17:53:33 -0700 | [diff] [blame] | 648 | phy_regs = &sdram_params->phy_regs; |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 649 | params_ctl = sdram_params->pctl_regs.denali_ctl; |
| 650 | params_pi = sdram_params->pi_regs.denali_pi; |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 651 | |
| 652 | fbdiv = mmio_read_32(CRU_BASE + CRU_PLL_CON(DPLL_ID, 0)) & 0xfff; |
| 653 | tmp = mmio_read_32(CRU_BASE + CRU_PLL_CON(DPLL_ID, 1)); |
| 654 | postdiv2 = POSTDIV2_DEC(tmp); |
| 655 | postdiv1 = POSTDIV1_DEC(tmp); |
| 656 | refdiv = REFDIV_DEC(tmp); |
| 657 | |
| 658 | sdram_params->ddr_freq = ((fbdiv * 24) / |
| 659 | (refdiv * postdiv1 * postdiv2)) * MHz; |
| 660 | |
| 661 | INFO("sdram_params->ddr_freq = %d\n", sdram_params->ddr_freq); |
| 662 | sdram_params->odt = (((mmio_read_32(PHY_REG(0, 5)) >> 16) & |
| 663 | 0x7) != 0) ? 1 : 0; |
| 664 | |
| 665 | /* copy the registers CTL PI and PHY */ |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 666 | dram_regcpy((uintptr_t)¶ms_ctl[0], CTL_REG(0, 0), CTL_REG_NUM); |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 667 | |
| 668 | /* mask DENALI_CTL_00_DATA.START, only copy here, will trigger later */ |
| 669 | params_ctl[0] &= ~(0x1 << 0); |
| 670 | |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 671 | dram_regcpy((uintptr_t)¶ms_pi[0], PI_REG(0, 0), |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 672 | PI_REG_NUM); |
| 673 | |
| 674 | /* mask DENALI_PI_00_DATA.START, only copy here, will trigger later*/ |
| 675 | params_pi[0] &= ~(0x1 << 0); |
| 676 | |
Derek Basehore | 6af5af0 | 2017-05-05 17:53:33 -0700 | [diff] [blame] | 677 | for (i = 0; i < 4; i++) |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 678 | dram_regcpy((uintptr_t)&phy_regs->phy0[i][0], |
Derek Basehore | 6af5af0 | 2017-05-05 17:53:33 -0700 | [diff] [blame] | 679 | PHY_REG(0, 128 * i), 91); |
| 680 | |
| 681 | for (i = 0; i < 3; i++) |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 682 | dram_regcpy((uintptr_t)&phy_regs->phy512[i][0], |
Derek Basehore | 6af5af0 | 2017-05-05 17:53:33 -0700 | [diff] [blame] | 683 | PHY_REG(0, 512 + 128 * i), 38); |
| 684 | |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 685 | dram_regcpy((uintptr_t)&phy_regs->phy896[0], PHY_REG(0, 896), 63); |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 686 | |
Derek Basehore | 04c74b9 | 2017-01-31 00:20:19 -0800 | [diff] [blame] | 687 | for (ch = 0; ch < sdram_params->num_channels; ch++) { |
| 688 | for (byte = 0; byte < 4; byte++) |
| 689 | sdram_params->rx_cal_dqs[ch][byte] = (0xfff << 16) & |
| 690 | mmio_read_32(PHY_REG(ch, 57 + byte * 128)); |
| 691 | } |
| 692 | |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 693 | /* set DENALI_PHY_957_DATA.PHY_DLL_RST_EN = 0x1 */ |
Derek Basehore | 6af5af0 | 2017-05-05 17:53:33 -0700 | [diff] [blame] | 694 | phy_regs->phy896[957 - 896] &= ~(0x3 << 24); |
| 695 | phy_regs->phy896[957 - 896] |= 1 << 24; |
| 696 | phy_regs->phy896[0] |= 1; |
| 697 | phy_regs->phy896[0] &= ~(0x3 << 8); |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 698 | } |
| 699 | |
Derek Basehore | bfb73e6 | 2017-05-15 21:18:28 -0700 | [diff] [blame] | 700 | __pmusramfunc void dmc_restore(void) |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 701 | { |
| 702 | struct rk3399_sdram_params *sdram_params = &sdram_config; |
| 703 | uint32_t channel_mask = 0; |
| 704 | uint32_t channel; |
| 705 | |
| 706 | configure_sgrf(); |
| 707 | |
| 708 | retry: |
| 709 | for (channel = 0; channel < sdram_params->num_channels; channel++) { |
| 710 | phy_pctrl_reset(channel); |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 711 | pctl_cfg(channel, sdram_params); |
| 712 | } |
| 713 | |
| 714 | for (channel = 0; channel < 2; channel++) { |
| 715 | if (sdram_params->ch[channel].col) |
| 716 | channel_mask |= 1 << channel; |
| 717 | } |
| 718 | |
| 719 | if (pctl_start(channel_mask, sdram_params) < 0) |
| 720 | goto retry; |
| 721 | |
| 722 | for (channel = 0; channel < sdram_params->num_channels; channel++) { |
| 723 | /* LPDDR2/LPDDR3 need to wait DAI complete, max 10us */ |
| 724 | if (sdram_params->dramtype == LPDDR3) |
| 725 | sram_udelay(10); |
| 726 | |
| 727 | /* If traning fail, retry to do it again. */ |
| 728 | if (data_training(channel, sdram_params, PI_FULL_TRAINING)) |
| 729 | goto retry; |
| 730 | |
| 731 | set_ddrconfig(sdram_params, channel, |
| 732 | sdram_params->ch[channel].ddrconfig); |
| 733 | } |
| 734 | |
| 735 | dram_all_config(sdram_params); |
| 736 | |
| 737 | /* Switch to index 1 and prepare for DDR frequency switch. */ |
Derek Basehore | e13bc54 | 2017-02-24 14:31:36 +0800 | [diff] [blame] | 738 | dram_switch_to_next_index(sdram_params); |
Caesar Wang | f33eb2c | 2016-10-27 01:13:16 +0800 | [diff] [blame] | 739 | } |