Asaf Penso | b8f524c | 2013-05-20 12:32:31 +0300 | [diff] [blame] | 1 | /* Copyright (c) 2013, The Linux Foundation. All rights reserved. |
| 2 | * |
| 3 | * Redistribution and use in source and binary forms, with or without |
| 4 | * modification, are permitted provided that the following conditions |
| 5 | * are met: |
| 6 | * * Redistributions of source code must retain the above copyright |
| 7 | * notice, this list of conditions and the following disclaimer. |
| 8 | * * Redistributions in binary form must reproduce the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer in |
| 10 | * the documentation and/or other materials provided with the |
| 11 | * distribution. |
| 12 | * * Neither the name of The Linux Foundation nor the names of its |
| 13 | * contributors may be used to endorse or promote products derived |
| 14 | * from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 19 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| 20 | * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 22 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| 23 | * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| 24 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| 25 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| 26 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 27 | * SUCH DAMAGE. |
| 28 | */ |
| 29 | #include "edp.h" |
Asaf Penso | b8f524c | 2013-05-20 12:32:31 +0300 | [diff] [blame] | 30 | |
| 31 | /* EDP phy configuration settings */ |
Kuogee Hsieh | ad69c3c | 2013-08-01 14:34:29 -0700 | [diff] [blame] | 32 | |
| 33 | void edp_phy_pll_reset(void) |
| 34 | { |
| 35 | /* EDP_PHY_CTRL */ |
| 36 | edp_write(EDP_BASE + 0x74, 0x005); /* bit 0, 2 */ |
| 37 | dmb(); |
| 38 | udelay(1); |
| 39 | edp_write(EDP_BASE + 0x74, 0x000); /* EDP_PHY_CTRL */ |
| 40 | } |
| 41 | |
| 42 | void edp_mainlink_reset(void) |
| 43 | { |
| 44 | edp_write(EDP_BASE + 0x04, 0x02 ); /* EDP_MAINLINK_CTRL */ |
| 45 | dmb(); |
| 46 | udelay(1); |
| 47 | edp_write(EDP_BASE + 0x04, 0 ); /* EDP_MAINLINK_CTRL */ |
| 48 | } |
| 49 | |
| 50 | void edp_aux_reset(void) |
| 51 | { |
| 52 | /*reset AUX */ |
| 53 | edp_write(EDP_BASE + 0x300, BIT(1)); /* EDP_AUX_CTRL */ |
| 54 | dmb(); |
| 55 | udelay(1); |
| 56 | edp_write(EDP_BASE + 0x300, 0); /* EDP_AUX_CTRL */ |
| 57 | } |
| 58 | |
| 59 | void edp_aux_enable(void) |
| 60 | { |
| 61 | edp_write(EDP_BASE + 0x300, 0x01); /* EDP_AUX_CTRL */ |
| 62 | dmb(); |
| 63 | udelay(1); |
| 64 | } |
| 65 | |
| 66 | void edp_phy_powerup(int enable) |
| 67 | { |
| 68 | if (enable) { |
| 69 | /* EDP_PHY_EDPPHY_GLB_PD_CTL */ |
| 70 | edp_write(EDP_BASE + 0x52c, 0x3f); |
| 71 | /* EDP_PHY_EDPPHY_GLB_CFG */ |
| 72 | edp_write(EDP_BASE + 0x528, 0x1); |
| 73 | /* EDP_PHY_PLL_UNIPHY_PLL_GLB_CFG */ |
| 74 | edp_write(EDP_BASE + 0x620, 0xf); |
| 75 | } else { |
| 76 | /* EDP_PHY_EDPPHY_GLB_PD_CTL */ |
| 77 | edp_write(EDP_BASE + 0x52c, 0xc0); |
| 78 | edp_write(EDP_BASE + 0x620, 0x0); |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | void edp_lane_power_ctrl(int max_lane, int up) |
| 83 | { |
Kuogee Hsieh | e3b50dd | 2013-09-25 14:40:25 -0700 | [diff] [blame] | 84 | int i, off; |
| 85 | unsigned int data; |
Kuogee Hsieh | ad69c3c | 2013-08-01 14:34:29 -0700 | [diff] [blame] | 86 | |
Kuogee Hsieh | e3b50dd | 2013-09-25 14:40:25 -0700 | [diff] [blame] | 87 | if (up) |
| 88 | data = 0; /* power up */ |
| 89 | else |
| 90 | data = 0x7; /* power down */ |
Kuogee Hsieh | ad69c3c | 2013-08-01 14:34:29 -0700 | [diff] [blame] | 91 | |
Kuogee Hsieh | e3b50dd | 2013-09-25 14:40:25 -0700 | [diff] [blame] | 92 | /* EDP_PHY_EDPPHY_LNn_PD_CTL */ |
| 93 | for (i = 0; i < max_lane; i++) { |
| 94 | off = 0x40 * i; |
| 95 | edp_write(EDP_BASE + 0x404 + off , data); |
| 96 | } |
| 97 | |
| 98 | /* power down un used lane */ |
| 99 | data = 0x7; /* power down */ |
| 100 | for (i = max_lane; i < EDP_MAX_LANE; i++) { |
| 101 | off = 0x40 * i; |
| 102 | edp_write(EDP_BASE + 0x404 + off , data); |
| 103 | } |
Kuogee Hsieh | ad69c3c | 2013-08-01 14:34:29 -0700 | [diff] [blame] | 104 | } |
| 105 | |
Asaf Penso | b8f524c | 2013-05-20 12:32:31 +0300 | [diff] [blame] | 106 | void edp_phy_sw_reset(void) |
| 107 | { |
| 108 | /* phy sw reset */ |
| 109 | edp_write(EDP_BASE + 0x74, 0x100); /* EDP_PHY_CTRL */ |
| 110 | dmb(); |
| 111 | udelay(1); |
| 112 | edp_write(EDP_BASE + 0x74, 0x000); /* EDP_PHY_CTRL */ |
| 113 | dmb(); |
| 114 | udelay(1); |
| 115 | |
| 116 | /* phy PLL sw reset */ |
| 117 | edp_write(EDP_BASE + 0x74, 0x001); /* EDP_PHY_CTRL */ |
| 118 | dmb(); |
| 119 | udelay(1); |
| 120 | edp_write(EDP_BASE + 0x74, 0x000); /* EDP_PHY_CTRL */ |
| 121 | dmb(); |
| 122 | udelay(1); |
| 123 | } |
| 124 | |
| 125 | void edp_hw_powerup(int enable) |
| 126 | { |
| 127 | int ret = 0; |
| 128 | |
| 129 | if (enable) { |
| 130 | /* EDP_PHY_EDPPHY_GLB_PD_CTL */ |
| 131 | edp_write(EDP_BASE + 0x52c, 0x3f); |
| 132 | /* EDP_PHY_EDPPHY_GLB_CFG */ |
| 133 | edp_write(EDP_BASE + 0x528, 0x1); |
| 134 | /* EDP_PHY_PLL_UNIPHY_PLL_GLB_CFG */ |
| 135 | edp_write(EDP_BASE + 0x620, 0xf); |
| 136 | /* EDP_AUX_CTRL */ |
| 137 | ret = edp_read(EDP_BASE + 0x300); |
Kuogee Hsieh | ad69c3c | 2013-08-01 14:34:29 -0700 | [diff] [blame] | 138 | ret = edp_read(EDP_BASE + 0x300); |
Asaf Penso | b8f524c | 2013-05-20 12:32:31 +0300 | [diff] [blame] | 139 | edp_write(EDP_BASE + 0x300, ret | 0x1); |
| 140 | } else { |
| 141 | /* EDP_PHY_EDPPHY_GLB_PD_CTL */ |
| 142 | edp_write(EDP_BASE + 0x52c, 0xc0); |
| 143 | } |
| 144 | } |
| 145 | |
Kuogee Hsieh | ad69c3c | 2013-08-01 14:34:29 -0700 | [diff] [blame] | 146 | void edp_pll_configure(unsigned int rate) |
Asaf Penso | b8f524c | 2013-05-20 12:32:31 +0300 | [diff] [blame] | 147 | { |
Asaf Penso | b8f524c | 2013-05-20 12:32:31 +0300 | [diff] [blame] | 148 | |
Kuogee Hsieh | ad69c3c | 2013-08-01 14:34:29 -0700 | [diff] [blame] | 149 | if (rate == 810000000) { |
| 150 | edp_write(EDP_BASE + 0x60c, 0x18); |
| 151 | edp_write(EDP_BASE + 0x664, 0x5); |
| 152 | edp_write(EDP_BASE + 0x600, 0x0); |
| 153 | edp_write(EDP_BASE + 0x638, 0x36); |
| 154 | edp_write(EDP_BASE + 0x63c, 0x69); |
| 155 | edp_write(EDP_BASE + 0x640, 0xff); |
| 156 | edp_write(EDP_BASE + 0x644, 0x2f); |
| 157 | edp_write(EDP_BASE + 0x648, 0x0); |
| 158 | edp_write(EDP_BASE + 0x66c, 0x0a); |
| 159 | edp_write(EDP_BASE + 0x674, 0x01); |
| 160 | edp_write(EDP_BASE + 0x684, 0x5a); |
| 161 | edp_write(EDP_BASE + 0x688, 0x0); |
| 162 | edp_write(EDP_BASE + 0x68c, 0x60); |
| 163 | edp_write(EDP_BASE + 0x690, 0x0); |
| 164 | edp_write(EDP_BASE + 0x694, 0x2a); |
| 165 | edp_write(EDP_BASE + 0x698, 0x3); |
| 166 | edp_write(EDP_BASE + 0x65c, 0x10); |
| 167 | edp_write(EDP_BASE + 0x660, 0x1a); |
| 168 | edp_write(EDP_BASE + 0x604, 0x0); |
| 169 | edp_write(EDP_BASE + 0x624, 0x0); |
| 170 | edp_write(EDP_BASE + 0x628, 0x0); |
| 171 | |
| 172 | edp_write(EDP_BASE + 0x620, 0x1); |
| 173 | edp_write(EDP_BASE + 0x620, 0x5); |
| 174 | edp_write(EDP_BASE + 0x620, 0x7); |
| 175 | edp_write(EDP_BASE + 0x620, 0xf); |
| 176 | |
| 177 | } else if (rate == 138530000) { |
| 178 | edp_write(EDP_BASE + 0x664, 0x5); /* UNIPHY_PLL_LKDET_CFG2 */ |
| 179 | edp_write(EDP_BASE + 0x600, 0x1); /* UNIPHY_PLL_REFCLK_CFG */ |
| 180 | edp_write(EDP_BASE + 0x638, 0x36); /* UNIPHY_PLL_SDM_CFG0 */ |
| 181 | edp_write(EDP_BASE + 0x63c, 0x62); /* UNIPHY_PLL_SDM_CFG1 */ |
| 182 | edp_write(EDP_BASE + 0x640, 0x0); /* UNIPHY_PLL_SDM_CFG2 */ |
| 183 | edp_write(EDP_BASE + 0x644, 0x28); /* UNIPHY_PLL_SDM_CFG3 */ |
| 184 | edp_write(EDP_BASE + 0x648, 0x0); /* UNIPHY_PLL_SDM_CFG4 */ |
| 185 | edp_write(EDP_BASE + 0x64c, 0x80); /* UNIPHY_PLL_SSC_CFG0 */ |
| 186 | edp_write(EDP_BASE + 0x650, 0x0); /* UNIPHY_PLL_SSC_CFG1 */ |
| 187 | edp_write(EDP_BASE + 0x654, 0x0); /* UNIPHY_PLL_SSC_CFG2 */ |
| 188 | edp_write(EDP_BASE + 0x658, 0x0); /* UNIPHY_PLL_SSC_CFG3 */ |
| 189 | edp_write(EDP_BASE + 0x66c, 0xa); /* UNIPHY_PLL_CAL_CFG0 */ |
| 190 | edp_write(EDP_BASE + 0x674, 0x1); /* UNIPHY_PLL_CAL_CFG2 */ |
| 191 | edp_write(EDP_BASE + 0x684, 0x5a); /* UNIPHY_PLL_CAL_CFG6 */ |
| 192 | edp_write(EDP_BASE + 0x688, 0x0); /* UNIPHY_PLL_CAL_CFG7 */ |
| 193 | edp_write(EDP_BASE + 0x68c, 0x60); /* UNIPHY_PLL_CAL_CFG8 */ |
| 194 | edp_write(EDP_BASE + 0x690, 0x0); /* UNIPHY_PLL_CAL_CFG9 */ |
| 195 | edp_write(EDP_BASE + 0x694, 0x46); /* UNIPHY_PLL_CAL_CFG10 */ |
| 196 | edp_write(EDP_BASE + 0x698, 0x5); /* UNIPHY_PLL_CAL_CFG11 */ |
| 197 | edp_write(EDP_BASE + 0x65c, 0x10); /* UNIPHY_PLL_LKDET_CFG0 */ |
| 198 | edp_write(EDP_BASE + 0x660, 0x1a); /* UNIPHY_PLL_LKDET_CFG1 */ |
| 199 | edp_write(EDP_BASE + 0x604, 0x0); /* UNIPHY_PLL_POSTDIV1_CFG */ |
| 200 | edp_write(EDP_BASE + 0x624, 0x0); /* UNIPHY_PLL_POSTDIV2_CFG */ |
| 201 | edp_write(EDP_BASE + 0x628, 0x0); /* UNIPHY_PLL_POSTDIV3_CFG */ |
| 202 | |
| 203 | edp_write(EDP_BASE + 0x620, 0x1); /* UNIPHY_PLL_GLB_CFG */ |
| 204 | edp_write(EDP_BASE + 0x620, 0x5); /* UNIPHY_PLL_GLB_CFG */ |
| 205 | edp_write(EDP_BASE + 0x620, 0x7); /* UNIPHY_PLL_GLB_CFG */ |
| 206 | edp_write(EDP_BASE + 0x620, 0xf); /* UNIPHY_PLL_GLB_CFG */ |
| 207 | } else { |
| 208 | dprintf(INFO, "%s: rate=%d is NOT supported\n", __func__, rate); |
| 209 | |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | |
| 214 | int mdss_edp_phy_pll_ready(void) |
| 215 | { |
| 216 | int cnt; |
| 217 | int status; |
| 218 | |
| 219 | cnt = 10; |
| 220 | while(cnt--) { |
| 221 | status = edp_read(EDP_BASE + 0x6c0); |
| 222 | if (status & 0x01) |
| 223 | break; |
| 224 | udelay(100); |
| 225 | } |
| 226 | |
| 227 | if(cnt == 0) { |
| 228 | dprintf("%s: PLL NOT ready\n", __func__); |
| 229 | return 0; |
| 230 | } |
| 231 | else |
| 232 | return 1; |
Asaf Penso | b8f524c | 2013-05-20 12:32:31 +0300 | [diff] [blame] | 233 | } |
| 234 | |
| 235 | void edp_enable_mainlink(int enable) |
| 236 | { |
| 237 | uint32_t data; |
| 238 | |
| 239 | data = edp_read(EDP_BASE + 0x004); |
| 240 | data &= ~BIT(0); |
| 241 | |
| 242 | if (enable) { |
| 243 | data |= 0x1; |
| 244 | edp_write(EDP_BASE + 0x004, data); |
| 245 | edp_write(EDP_BASE + 0x004, 0x1); |
| 246 | } else { |
| 247 | data |= 0x0; |
| 248 | edp_write(EDP_BASE + 0x004, data); |
| 249 | } |
| 250 | } |
| 251 | |
| 252 | void edp_enable_lane_bist(int lane, int enable) |
| 253 | { |
| 254 | unsigned char *addr_ln_bist_cfg, *addr_ln_pd_ctrl; |
| 255 | |
| 256 | /* EDP_PHY_EDPPHY_LNn_PD_CTL */ |
| 257 | addr_ln_pd_ctrl = (unsigned char *)(EDP_BASE + 0x404 + (0x40 * lane)); |
| 258 | /* EDP_PHY_EDPPHY_LNn_BIST_CFG0 */ |
| 259 | addr_ln_bist_cfg = (unsigned char *)(EDP_BASE + 0x408 + (0x40 * lane)); |
| 260 | |
| 261 | if (enable) { |
| 262 | edp_write(addr_ln_pd_ctrl, 0x0); |
| 263 | edp_write(addr_ln_bist_cfg, 0x10); |
| 264 | |
| 265 | } else { |
| 266 | edp_write(addr_ln_pd_ctrl, 0xf); |
| 267 | edp_write(addr_ln_bist_cfg, 0x10); |
| 268 | } |
| 269 | } |
| 270 | |
| 271 | void edp_enable_pixel_clk(int enable) |
| 272 | { |
| 273 | if (!enable) { |
| 274 | edp_write(MDSS_EDPPIXEL_CBCR, 0); /* CBCR */ |
| 275 | return; |
| 276 | } |
| 277 | |
| 278 | edp_write(EDP_BASE + 0x624, 0x1); /* PostDiv2 */ |
| 279 | |
| 280 | /* Configuring MND for Pixel */ |
| 281 | edp_write(EDPPIXEL_M, 0x3f); /* M value */ |
| 282 | edp_write(EDPPIXEL_N, 0xb); /* N value */ |
| 283 | edp_write(EDPPIXEL_D, 0x0); /* D value */ |
| 284 | |
| 285 | /* CFG RCGR */ |
| 286 | edp_write(EDPPIXEL_CFG_RCGR, (5 << 8) | (2 << 12)); |
| 287 | edp_write(EDPPIXEL_CMD_RCGR, 3); /* CMD RCGR */ |
| 288 | |
| 289 | edp_write(MDSS_EDPPIXEL_CBCR, 1); /* CBCR */ |
| 290 | } |
| 291 | |
| 292 | void edp_enable_link_clk(int enable) |
| 293 | { |
| 294 | if (!enable) { |
| 295 | edp_write(MDSS_EDPLINK_CBCR, 0); /* CBCR */ |
| 296 | return; |
| 297 | } |
| 298 | |
Kuogee Hsieh | ad69c3c | 2013-08-01 14:34:29 -0700 | [diff] [blame] | 299 | edp_write(EDPLINK_CFG_RCGR, (4 << 8) | 0x01); /* CFG RCGR */ |
Asaf Penso | b8f524c | 2013-05-20 12:32:31 +0300 | [diff] [blame] | 300 | edp_write(EDPLINK_CMD_RCGR, 3); /* CMD RCGR */ |
| 301 | |
| 302 | edp_write(MDSS_EDPLINK_CBCR, 1); /* CBCR */ |
| 303 | } |
| 304 | |
Kuogee Hsieh | ad69c3c | 2013-08-01 14:34:29 -0700 | [diff] [blame] | 305 | void edp_enable_aux_clk(int enable) |
| 306 | { |
| 307 | if (!enable) { |
| 308 | edp_write(MDSS_EDPAUX_CBCR, 0); /* CBCR */ |
| 309 | return; |
| 310 | } |
| 311 | |
| 312 | edp_write(EDPAUX_CFG_RCGR, 0x01); /* CFG RCGR */ |
| 313 | |
| 314 | edp_write(MDSS_EDPAUX_CBCR, 1); /* CBCR */ |
| 315 | } |
| 316 | |
Asaf Penso | b8f524c | 2013-05-20 12:32:31 +0300 | [diff] [blame] | 317 | void edp_config_clk(void) |
| 318 | { |
| 319 | edp_enable_link_clk(1); |
| 320 | edp_enable_pixel_clk(1); |
Kuogee Hsieh | ad69c3c | 2013-08-01 14:34:29 -0700 | [diff] [blame] | 321 | edp_enable_aux_clk(1); |
Asaf Penso | b8f524c | 2013-05-20 12:32:31 +0300 | [diff] [blame] | 322 | } |
| 323 | |
| 324 | void edp_unconfig_clk(void) |
| 325 | { |
| 326 | edp_enable_link_clk(0); |
| 327 | edp_enable_pixel_clk(0); |
Kuogee Hsieh | ad69c3c | 2013-08-01 14:34:29 -0700 | [diff] [blame] | 328 | edp_enable_aux_clk(0); |
Asaf Penso | b8f524c | 2013-05-20 12:32:31 +0300 | [diff] [blame] | 329 | } |
| 330 | |
Kuogee Hsieh | e3b50dd | 2013-09-25 14:40:25 -0700 | [diff] [blame] | 331 | void edp_phy_vm_pe_init(void) |
Asaf Penso | b8f524c | 2013-05-20 12:32:31 +0300 | [diff] [blame] | 332 | { |
| 333 | /* EDP_PHY_EDPPHY_GLB_VM_CFG0 */ |
| 334 | edp_write(EDP_BASE + 0x510, 0x3); |
| 335 | /* EDP_PHY_EDPPHY_GLB_VM_CFG1 */ |
| 336 | edp_write(EDP_BASE + 0x514, 0x64); |
| 337 | /* EDP_PHY_EDPPHY_GLB_MISC9 */ |
| 338 | edp_write(EDP_BASE + 0x518, 0x6c); |
Asaf Penso | b8f524c | 2013-05-20 12:32:31 +0300 | [diff] [blame] | 339 | } |