Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2013, 2014 Vladimir Serbinenko |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 or (at your option) |
| 9 | * any later version of the License. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 15 | */ |
| 16 | |
| 17 | #include <arch/io.h> |
| 18 | #include <console/console.h> |
| 19 | #include <delay.h> |
| 20 | #include <device/device.h> |
| 21 | #include <string.h> |
| 22 | |
| 23 | #include <drivers/intel/gma/edid.h> |
| 24 | #include <drivers/intel/gma/i915.h> |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 25 | #include "gma.h" |
| 26 | #include "chip.h" |
Iru Cai | 8e7928a | 2015-10-18 23:40:34 +0800 | [diff] [blame] | 27 | #include "sandybridge.h" |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 28 | #include <pc80/vga.h> |
| 29 | #include <pc80/vga_io.h> |
| 30 | #include <device/pci_def.h> |
| 31 | #include <device/pci_rom.h> |
| 32 | |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 33 | static void train_link(u8 *mmio) |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 34 | { |
| 35 | /* Clear interrupts. */ |
| 36 | write32(mmio + DEIIR, 0xffffffff); |
| 37 | |
| 38 | write32(mmio + 0xf000c, 0x2040); |
| 39 | write32(mmio + 0xf000c, 0x2050); |
| 40 | write32(mmio + 0x60100, 0x44000); |
| 41 | write32(mmio + 0xf000c, 0x22050); |
| 42 | |
| 43 | mdelay(1); |
| 44 | |
| 45 | write32(mmio + 0x000f0018, 0x0000008ff); |
| 46 | write32(mmio + 0x000f1018, 0x0000008ff); |
| 47 | |
| 48 | write32(mmio + 0x000f000c, 0x001a2050); |
| 49 | write32(mmio + 0x00060100, 0x001c4000); |
| 50 | |
| 51 | write32(mmio + 0x00060100, 0x801c4000); |
| 52 | write32(mmio + 0x000f000c, 0x801a2050); |
| 53 | |
| 54 | write32(mmio + 0x00060100, 0x801c4000); |
| 55 | write32(mmio + 0x000f000c, 0x801a2050); |
| 56 | mdelay(1); |
| 57 | |
| 58 | read32(mmio + 0x000f0014); // = 0x00000100 |
| 59 | write32(mmio + 0x000f0014, 0x00000100); |
| 60 | write32(mmio + 0x00060100, 0x901c4000); |
| 61 | write32(mmio + 0x000f000c, 0x801a2150); |
| 62 | mdelay(1); |
| 63 | read32(mmio + 0x000f0014); // = 0x00000600 |
| 64 | } |
| 65 | |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 66 | static void power_port(u8 *mmio) |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 67 | { |
| 68 | read32(mmio + 0x000e1100); // = 0x00000000 |
| 69 | write32(mmio + 0x000e1100, 0x00000000); |
| 70 | write32(mmio + 0x000e1100, 0x00010000); |
| 71 | read32(mmio + 0x000e1100); // = 0x00010000 |
| 72 | read32(mmio + 0x000e1100); // = 0x00010000 |
| 73 | read32(mmio + 0x000e1100); // = 0x00000000 |
| 74 | write32(mmio + 0x000e1100, 0x00000000); |
| 75 | read32(mmio + 0x000e1100); // = 0x00000000 |
| 76 | read32(mmio + 0x000e4200); // = 0x0000001c |
| 77 | write32(mmio + 0x000e4210, 0x8004003e); |
| 78 | write32(mmio + 0x000e4214, 0x80060002); |
| 79 | write32(mmio + 0x000e4218, 0x01000000); |
| 80 | read32(mmio + 0x000e4210); // = 0x5144003e |
| 81 | write32(mmio + 0x000e4210, 0x5344003e); |
| 82 | read32(mmio + 0x000e4210); // = 0x0144003e |
| 83 | write32(mmio + 0x000e4210, 0x8074003e); |
| 84 | read32(mmio + 0x000e4210); // = 0x5144003e |
| 85 | read32(mmio + 0x000e4210); // = 0x5144003e |
| 86 | write32(mmio + 0x000e4210, 0x5344003e); |
| 87 | read32(mmio + 0x000e4210); // = 0x0144003e |
| 88 | write32(mmio + 0x000e4210, 0x8074003e); |
| 89 | read32(mmio + 0x000e4210); // = 0x5144003e |
| 90 | read32(mmio + 0x000e4210); // = 0x5144003e |
| 91 | write32(mmio + 0x000e4210, 0x5344003e); |
| 92 | read32(mmio + 0x000e4210); // = 0x0144003e |
| 93 | write32(mmio + 0x000e4210, 0x8074003e); |
| 94 | read32(mmio + 0x000e4210); // = 0x5144003e |
| 95 | read32(mmio + 0x000e4210); // = 0x5144003e |
| 96 | write32(mmio + 0x000e4210, 0x5344003e); |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 97 | write32(mmio + 0x000c4030, 0x00001000); |
| 98 | read32(mmio + 0x000c4000); // = 0x00000000 |
| 99 | write32(mmio + 0x000c4030, 0x00001000); |
| 100 | read32(mmio + 0x000e1150); // = 0x0000001c |
| 101 | write32(mmio + 0x000e1150, 0x0000089c); |
| 102 | write32(mmio + 0x000fcc00, 0x01986f00); |
| 103 | write32(mmio + 0x000fcc0c, 0x01986f00); |
| 104 | write32(mmio + 0x000fcc18, 0x01986f00); |
| 105 | write32(mmio + 0x000fcc24, 0x01986f00); |
| 106 | read32(mmio + 0x000c4000); // = 0x00000000 |
| 107 | read32(mmio + 0x000e1180); // = 0x40000002 |
| 108 | } |
| 109 | |
Vladimir Serbinenko | a71bdc3 | 2014-08-30 00:35:39 +0200 | [diff] [blame] | 110 | int i915lightup_sandy(const struct i915_gpu_controller_info *info, |
Kevin Paul Herbert | bde6d30 | 2014-12-24 18:43:20 -0800 | [diff] [blame] | 111 | u32 physbase, u16 piobase, u8 *mmio, u32 lfb) |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 112 | { |
| 113 | int i; |
| 114 | u8 edid_data[128]; |
| 115 | struct edid edid; |
Alexandru Gagniuc | c241855 | 2015-09-02 09:00:45 -0700 | [diff] [blame] | 116 | struct edid_mode *mode; |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 117 | u32 hactive, vactive, right_border, bottom_border; |
| 118 | int hpolarity, vpolarity; |
| 119 | u32 vsync, hsync, vblank, hblank, hfront_porch, vfront_porch; |
| 120 | u32 candp1, candn; |
| 121 | u32 best_delta = 0xffffffff; |
| 122 | u32 target_frequency; |
| 123 | u32 pixel_p1 = 1; |
| 124 | u32 pixel_n = 1; |
| 125 | u32 pixel_m1 = 1; |
| 126 | u32 pixel_m2 = 1; |
Vladimir Serbinenko | a71bdc3 | 2014-08-30 00:35:39 +0200 | [diff] [blame] | 127 | u32 link_frequency = info->link_frequency_270_mhz ? 270000 : 162000; |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 128 | u32 data_m1; |
| 129 | u32 data_n1 = 0x00800000; |
| 130 | u32 link_m1; |
| 131 | u32 link_n1 = 0x00080000; |
| 132 | |
Alexandru Gagniuc | 9647094 | 2015-09-07 03:06:31 -0700 | [diff] [blame] | 133 | if (!IS_ENABLED(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT)) |
| 134 | return 0; |
| 135 | |
Iru Cai | 8e7928a | 2015-10-18 23:40:34 +0800 | [diff] [blame] | 136 | if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_IVB) { |
| 137 | return i915lightup_ivy(info, physbase, piobase, mmio, lfb); |
| 138 | } |
| 139 | |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 140 | write32(mmio + 0x00070080, 0x00000000); |
| 141 | write32(mmio + DSPCNTR(0), 0x00000000); |
| 142 | write32(mmio + 0x00071180, 0x00000000); |
| 143 | write32(mmio + CPU_VGACNTRL, 0x0000298e | VGA_DISP_DISABLE); |
| 144 | write32(mmio + 0x0007019c, 0x00000000); |
| 145 | write32(mmio + 0x0007119c, 0x00000000); |
| 146 | write32(mmio + 0x000ec008, 0x2c010000); |
| 147 | write32(mmio + 0x000ec020, 0x2c010000); |
| 148 | write32(mmio + 0x000ec038, 0x2c010000); |
| 149 | write32(mmio + 0x000ec050, 0x2c010000); |
| 150 | write32(mmio + 0x000ec408, 0x2c010000); |
| 151 | write32(mmio + 0x000ec420, 0x2c010000); |
| 152 | write32(mmio + 0x000ec438, 0x2c010000); |
| 153 | write32(mmio + 0x000ec450, 0x2c010000); |
| 154 | vga_gr_write(0x18, 0); |
| 155 | write32(mmio + 0x00042004, 0x02000000); |
| 156 | write32(mmio + 0x000fd034, 0x8421ffe0); |
| 157 | |
| 158 | /* Setup GTT. */ |
| 159 | for (i = 0; i < 0x2000; i++) |
| 160 | { |
| 161 | outl((i << 2) | 1, piobase); |
| 162 | outl(physbase + (i << 12) + 1, piobase + 4); |
| 163 | } |
| 164 | |
| 165 | vga_misc_write(0x67); |
| 166 | |
| 167 | const u8 cr[] = { 0x5f, 0x4f, 0x50, 0x82, 0x55, 0x81, 0xbf, 0x1f, |
| 168 | 0x00, 0x4f, 0x0d, 0x0e, 0x00, 0x00, 0x00, 0x00, |
| 169 | 0x9c, 0x8e, 0x8f, 0x28, 0x1f, 0x96, 0xb9, 0xa3, |
| 170 | 0xff |
| 171 | }; |
| 172 | vga_cr_write(0x11, 0); |
| 173 | |
| 174 | for (i = 0; i <= 0x18; i++) |
| 175 | vga_cr_write(i, cr[i]); |
| 176 | |
| 177 | power_port(mmio); |
| 178 | |
Arthur Heymans | 7141ff3 | 2016-10-10 17:49:00 +0200 | [diff] [blame] | 179 | intel_gmbus_read_edid(mmio + PCH_GMBUS0, 3, 0x50, edid_data, |
| 180 | sizeof(edid_data)); |
Alexandru Gagniuc | c241855 | 2015-09-02 09:00:45 -0700 | [diff] [blame] | 181 | decode_edid(edid_data, sizeof(edid_data), &edid); |
| 182 | mode = &edid.mode; |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 183 | |
| 184 | /* Disable screen memory to prevent garbage from appearing. */ |
| 185 | vga_sr_write(1, vga_sr_read(1) | 0x20); |
| 186 | |
| 187 | hactive = edid.x_resolution; |
| 188 | vactive = edid.y_resolution; |
Alexandru Gagniuc | c241855 | 2015-09-02 09:00:45 -0700 | [diff] [blame] | 189 | right_border = mode->hborder; |
| 190 | bottom_border = mode->vborder; |
| 191 | hpolarity = (mode->phsync == '-'); |
| 192 | vpolarity = (mode->pvsync == '-'); |
| 193 | vsync = mode->vspw; |
| 194 | hsync = mode->hspw; |
| 195 | vblank = mode->vbl; |
| 196 | hblank = mode->hbl; |
| 197 | hfront_porch = mode->hso; |
| 198 | vfront_porch = mode->vso; |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 199 | |
Vladimir Serbinenko | 551cff0 | 2015-10-10 23:58:08 +0200 | [diff] [blame] | 200 | target_frequency = mode->lvds_dual_channel ? mode->pixel_clock |
Alexandru Gagniuc | c241855 | 2015-09-02 09:00:45 -0700 | [diff] [blame] | 201 | : (2 * mode->pixel_clock); |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 202 | |
Alexandru Gagniuc | 9647094 | 2015-09-07 03:06:31 -0700 | [diff] [blame] | 203 | if (IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE)) { |
| 204 | vga_sr_write(1, 1); |
| 205 | vga_sr_write(0x2, 0xf); |
| 206 | vga_sr_write(0x3, 0x0); |
| 207 | vga_sr_write(0x4, 0xe); |
| 208 | vga_gr_write(0, 0x0); |
| 209 | vga_gr_write(1, 0x0); |
| 210 | vga_gr_write(2, 0x0); |
| 211 | vga_gr_write(3, 0x0); |
| 212 | vga_gr_write(4, 0x0); |
| 213 | vga_gr_write(5, 0x0); |
| 214 | vga_gr_write(6, 0x5); |
| 215 | vga_gr_write(7, 0xf); |
| 216 | vga_gr_write(0x10, 0x1); |
| 217 | vga_gr_write(0x11, 0); |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 218 | |
Alexandru Gagniuc | 9647094 | 2015-09-07 03:06:31 -0700 | [diff] [blame] | 219 | edid.bytes_per_line = (edid.bytes_per_line + 63) & ~63; |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 220 | |
Alexandru Gagniuc | 9647094 | 2015-09-07 03:06:31 -0700 | [diff] [blame] | 221 | write32(mmio + DSPCNTR(0), DISPPLANE_BGRX888); |
| 222 | write32(mmio + DSPADDR(0), 0); |
| 223 | write32(mmio + DSPSTRIDE(0), edid.bytes_per_line); |
| 224 | write32(mmio + DSPSURF(0), 0); |
| 225 | for (i = 0; i < 0x100; i++) |
| 226 | write32(mmio + LGC_PALETTE(0) + 4 * i, i * 0x010101); |
| 227 | } else { |
| 228 | vga_textmode_init(); |
| 229 | } |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 230 | |
| 231 | /* Find suitable divisors. */ |
| 232 | for (candp1 = 1; candp1 <= 8; candp1++) { |
| 233 | for (candn = 5; candn <= 10; candn++) { |
| 234 | u32 cur_frequency; |
| 235 | u32 m; /* 77 - 131. */ |
| 236 | u32 denom; /* 35 - 560. */ |
| 237 | u32 current_delta; |
| 238 | |
| 239 | denom = candn * candp1 * 7; |
| 240 | /* Doesnt overflow for up to |
| 241 | 5000000 kHz = 5 GHz. */ |
| 242 | m = (target_frequency * denom + 60000) / 120000; |
| 243 | |
| 244 | if (m < 77 || m > 131) |
| 245 | continue; |
| 246 | |
| 247 | cur_frequency = (120000 * m) / denom; |
| 248 | if (target_frequency > cur_frequency) |
| 249 | current_delta = target_frequency - cur_frequency; |
| 250 | else |
| 251 | current_delta = cur_frequency - target_frequency; |
| 252 | |
| 253 | |
| 254 | if (best_delta > current_delta) { |
| 255 | best_delta = current_delta; |
| 256 | pixel_n = candn; |
| 257 | pixel_p1 = candp1; |
| 258 | pixel_m2 = ((m + 3) % 5) + 7; |
| 259 | pixel_m1 = (m - pixel_m2) / 5; |
| 260 | } |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | if (best_delta == 0xffffffff) { |
| 265 | printk (BIOS_ERR, "Couldn't find GFX clock divisors\n"); |
| 266 | return 0; |
| 267 | } |
| 268 | |
Alexandru Gagniuc | c241855 | 2015-09-02 09:00:45 -0700 | [diff] [blame] | 269 | link_m1 = ((uint64_t)link_n1 * mode->pixel_clock) / link_frequency; |
| 270 | data_m1 = ((uint64_t)data_n1 * 18 * mode->pixel_clock) |
Vladimir Serbinenko | c48f5ef | 2015-10-11 02:05:55 +0200 | [diff] [blame] | 271 | / (link_frequency * 8 * 4); |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 272 | |
| 273 | printk(BIOS_INFO, "bringing up panel at resolution %d x %d\n", |
| 274 | hactive, vactive); |
| 275 | printk(BIOS_DEBUG, "Borders %d x %d\n", |
| 276 | right_border, bottom_border); |
| 277 | printk(BIOS_DEBUG, "Blank %d x %d\n", |
| 278 | hblank, vblank); |
| 279 | printk(BIOS_DEBUG, "Sync %d x %d\n", |
| 280 | hsync, vsync); |
| 281 | printk(BIOS_DEBUG, "Front porch %d x %d\n", |
| 282 | hfront_porch, vfront_porch); |
Vladimir Serbinenko | a71bdc3 | 2014-08-30 00:35:39 +0200 | [diff] [blame] | 283 | printk(BIOS_DEBUG, (info->use_spread_spectrum_clock |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 284 | ? "Spread spectrum clock\n" : "DREF clock\n")); |
| 285 | printk(BIOS_DEBUG, |
Vladimir Serbinenko | 551cff0 | 2015-10-10 23:58:08 +0200 | [diff] [blame] | 286 | mode->lvds_dual_channel ? "Dual channel\n" : "Single channel\n"); |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 287 | printk(BIOS_DEBUG, "Polarities %d, %d\n", |
| 288 | hpolarity, vpolarity); |
| 289 | printk(BIOS_DEBUG, "Data M1=%d, N1=%d\n", |
| 290 | data_m1, data_n1); |
| 291 | printk(BIOS_DEBUG, "Link frequency %d kHz\n", |
| 292 | link_frequency); |
| 293 | printk(BIOS_DEBUG, "Link M1=%d, N1=%d\n", |
| 294 | link_m1, link_n1); |
| 295 | printk(BIOS_DEBUG, "Pixel N=%d, M1=%d, M2=%d, P1=%d\n", |
| 296 | pixel_n, pixel_m1, pixel_m2, pixel_p1); |
| 297 | printk(BIOS_DEBUG, "Pixel clock %d kHz\n", |
| 298 | 120000 * (5 * pixel_m1 + pixel_m2) / pixel_n |
| 299 | / (pixel_p1 * 7)); |
| 300 | |
| 301 | write32(mmio + PCH_LVDS, |
| 302 | (hpolarity << 20) | (vpolarity << 21) |
Vladimir Serbinenko | 551cff0 | 2015-10-10 23:58:08 +0200 | [diff] [blame] | 303 | | (mode->lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 304 | | LVDS_CLOCK_BOTH_POWERUP_ALL : 0) |
| 305 | | LVDS_BORDER_ENABLE | LVDS_CLOCK_A_POWERUP_ALL |
| 306 | | LVDS_DETECTED); |
| 307 | write32(mmio + BLC_PWM_CPU_CTL2, (1 << 31)); |
Vladimir Serbinenko | a71bdc3 | 2014-08-30 00:35:39 +0200 | [diff] [blame] | 308 | write32(mmio + PCH_DREF_CONTROL, (info->use_spread_spectrum_clock |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 309 | ? 0x1002 : 0x400)); |
| 310 | mdelay(1); |
| 311 | write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS |
| 312 | | (read32(mmio + PCH_PP_CONTROL) & ~PANEL_UNLOCK_MASK)); |
| 313 | write32(mmio + _PCH_FP0(0), |
| 314 | ((pixel_n - 2) << 16) |
| 315 | | ((pixel_m1 - 2) << 8) | pixel_m2); |
| 316 | write32(mmio + PCH_DPLL_SEL, 8); |
| 317 | write32(mmio + _PCH_DPLL(0), |
| 318 | DPLL_VCO_ENABLE | DPLLB_MODE_LVDS |
Vladimir Serbinenko | 551cff0 | 2015-10-10 23:58:08 +0200 | [diff] [blame] | 319 | | (mode->lvds_dual_channel ? DPLLB_LVDS_P2_CLOCK_DIV_7 |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 320 | : DPLLB_LVDS_P2_CLOCK_DIV_14) |
| 321 | | (0x10000 << (pixel_p1 - 1)) |
Vladimir Serbinenko | a71bdc3 | 2014-08-30 00:35:39 +0200 | [diff] [blame] | 322 | | ((info->use_spread_spectrum_clock ? 3 : 0) << 13) |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 323 | | (0x1 << (pixel_p1 - 1))); |
| 324 | mdelay(1); |
| 325 | write32(mmio + _PCH_DPLL(0), |
| 326 | DPLL_VCO_ENABLE | DPLLB_MODE_LVDS |
Vladimir Serbinenko | 551cff0 | 2015-10-10 23:58:08 +0200 | [diff] [blame] | 327 | | (mode->lvds_dual_channel ? DPLLB_LVDS_P2_CLOCK_DIV_7 |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 328 | : DPLLB_LVDS_P2_CLOCK_DIV_14) |
| 329 | | (0x10000 << (pixel_p1 - 1)) |
Vladimir Serbinenko | a71bdc3 | 2014-08-30 00:35:39 +0200 | [diff] [blame] | 330 | | ((info->use_spread_spectrum_clock ? 3 : 0) << 13) |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 331 | | (0x1 << (pixel_p1 - 1))); |
| 332 | /* Re-lock the registers. */ |
| 333 | write32(mmio + PCH_PP_CONTROL, |
| 334 | (read32(mmio + PCH_PP_CONTROL) & ~PANEL_UNLOCK_MASK)); |
| 335 | |
| 336 | write32(mmio + PCH_LVDS, |
| 337 | (hpolarity << 20) | (vpolarity << 21) |
Vladimir Serbinenko | 551cff0 | 2015-10-10 23:58:08 +0200 | [diff] [blame] | 338 | | (mode->lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 339 | | LVDS_CLOCK_BOTH_POWERUP_ALL : 0) |
| 340 | | LVDS_BORDER_ENABLE | LVDS_CLOCK_A_POWERUP_ALL |
| 341 | | LVDS_DETECTED); |
| 342 | |
| 343 | write32(mmio + HTOTAL(0), |
| 344 | ((hactive + right_border + hblank - 1) << 16) |
| 345 | | (hactive - 1)); |
| 346 | write32(mmio + HBLANK(0), |
| 347 | ((hactive + right_border + hblank - 1) << 16) |
| 348 | | (hactive + right_border - 1)); |
| 349 | write32(mmio + HSYNC(0), |
| 350 | ((hactive + right_border + hfront_porch + hsync - 1) << 16) |
| 351 | | (hactive + right_border + hfront_porch - 1)); |
| 352 | |
| 353 | write32(mmio + VTOTAL(0), ((vactive + bottom_border + vblank - 1) << 16) |
| 354 | | (vactive - 1)); |
| 355 | write32(mmio + VBLANK(0), ((vactive + bottom_border + vblank - 1) << 16) |
| 356 | | (vactive + bottom_border - 1)); |
| 357 | write32(mmio + VSYNC(0), |
| 358 | (vactive + bottom_border + vfront_porch + vsync - 1) |
| 359 | | (vactive + bottom_border + vfront_porch - 1)); |
| 360 | |
| 361 | write32(mmio + PIPECONF(0), PIPECONF_DISABLE); |
| 362 | |
| 363 | write32(mmio + PF_WIN_POS(0), 0); |
Alexandru Gagniuc | 9647094 | 2015-09-07 03:06:31 -0700 | [diff] [blame] | 364 | if (IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE)) { |
| 365 | write32(mmio + PIPESRC(0), ((hactive - 1) << 16) | (vactive - 1)); |
| 366 | write32(mmio + PF_CTL(0),0); |
| 367 | write32(mmio + PF_WIN_SZ(0), 0); |
| 368 | } else { |
| 369 | write32(mmio + PIPESRC(0), (639 << 16) | 399); |
| 370 | write32(mmio + PF_CTL(0),PF_ENABLE | PF_FILTER_MED_3x3); |
| 371 | write32(mmio + PF_WIN_SZ(0), vactive | (hactive << 16)); |
| 372 | } |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 373 | |
| 374 | mdelay(1); |
| 375 | |
| 376 | write32(mmio + PIPE_DATA_M1(0), 0x7e000000 | data_m1); |
| 377 | write32(mmio + PIPE_DATA_N1(0), data_n1); |
| 378 | write32(mmio + PIPE_LINK_M1(0), link_m1); |
| 379 | write32(mmio + PIPE_LINK_N1(0), link_n1); |
| 380 | |
| 381 | write32(mmio + 0x000f000c, 0x00002040); |
| 382 | mdelay(1); |
| 383 | write32(mmio + 0x000f000c, 0x00002050); |
| 384 | write32(mmio + 0x00060100, 0x00044000); |
| 385 | mdelay(1); |
| 386 | write32(mmio + PIPECONF(0), PIPECONF_BPP_6); |
| 387 | write32(mmio + 0x000f000c, 0x00022050); |
| 388 | write32(mmio + PIPECONF(0), PIPECONF_BPP_6 | PIPECONF_DITHER_EN); |
| 389 | write32(mmio + PIPECONF(0), PIPECONF_ENABLE | PIPECONF_BPP_6 | PIPECONF_DITHER_EN); |
| 390 | |
Alexandru Gagniuc | 9647094 | 2015-09-07 03:06:31 -0700 | [diff] [blame] | 391 | if (IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE)) |
| 392 | write32(mmio + CPU_VGACNTRL, 0x20298e | VGA_DISP_DISABLE); |
| 393 | else |
| 394 | write32(mmio + CPU_VGACNTRL, 0x20298e); |
| 395 | |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 396 | train_link(mmio); |
| 397 | |
Alexandru Gagniuc | 9647094 | 2015-09-07 03:06:31 -0700 | [diff] [blame] | 398 | if (IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE)) { |
| 399 | write32(mmio + DSPCNTR(0), DISPLAY_PLANE_ENABLE | DISPPLANE_BGRX888); |
| 400 | mdelay(1); |
| 401 | } |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 402 | |
| 403 | write32(mmio + TRANS_HTOTAL(0), |
| 404 | ((hactive + right_border + hblank - 1) << 16) |
| 405 | | (hactive - 1)); |
| 406 | write32(mmio + TRANS_HBLANK(0), |
| 407 | ((hactive + right_border + hblank - 1) << 16) |
| 408 | | (hactive + right_border - 1)); |
| 409 | write32(mmio + TRANS_HSYNC(0), |
| 410 | ((hactive + right_border + hfront_porch + hsync - 1) << 16) |
| 411 | | (hactive + right_border + hfront_porch - 1)); |
| 412 | |
| 413 | write32(mmio + TRANS_VTOTAL(0), |
| 414 | ((vactive + bottom_border + vblank - 1) << 16) |
| 415 | | (vactive - 1)); |
| 416 | write32(mmio + TRANS_VBLANK(0), |
| 417 | ((vactive + bottom_border + vblank - 1) << 16) |
| 418 | | (vactive + bottom_border - 1)); |
| 419 | write32(mmio + TRANS_VSYNC(0), |
| 420 | (vactive + bottom_border + vfront_porch + vsync - 1) |
| 421 | | (vactive + bottom_border + vfront_porch - 1)); |
| 422 | |
| 423 | write32(mmio + 0x00060100, 0xb01c4000); |
| 424 | write32(mmio + 0x000f000c, 0x801a2350); |
| 425 | mdelay(1); |
Alexandru Gagniuc | 9647094 | 2015-09-07 03:06:31 -0700 | [diff] [blame] | 426 | |
| 427 | if (IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE)) |
| 428 | write32(mmio + TRANSCONF(0), TRANS_ENABLE | TRANS_6BPC |
| 429 | | TRANS_STATE_MASK); |
| 430 | else |
| 431 | write32(mmio + TRANSCONF(0), TRANS_ENABLE | TRANS_6BPC); |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 432 | |
| 433 | write32(mmio + PCH_LVDS, |
| 434 | LVDS_PORT_ENABLE |
| 435 | | (hpolarity << 20) | (vpolarity << 21) |
Vladimir Serbinenko | 551cff0 | 2015-10-10 23:58:08 +0200 | [diff] [blame] | 436 | | (mode->lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 437 | | LVDS_CLOCK_BOTH_POWERUP_ALL : 0) |
| 438 | | LVDS_BORDER_ENABLE | LVDS_CLOCK_A_POWERUP_ALL |
| 439 | | LVDS_DETECTED); |
| 440 | |
| 441 | write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS | PANEL_POWER_OFF); |
| 442 | write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS | PANEL_POWER_RESET); |
| 443 | mdelay(1); |
| 444 | write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS |
| 445 | | PANEL_POWER_ON | PANEL_POWER_RESET); |
| 446 | |
| 447 | printk (BIOS_DEBUG, "waiting for panel powerup\n"); |
| 448 | while (1) { |
| 449 | u32 reg32; |
| 450 | reg32 = read32(mmio + PCH_PP_STATUS); |
| 451 | if (((reg32 >> 28) & 3) == 0) |
| 452 | break; |
| 453 | } |
| 454 | printk (BIOS_DEBUG, "panel powered up\n"); |
| 455 | |
| 456 | write32(mmio + PCH_PP_CONTROL, PANEL_POWER_ON | PANEL_POWER_RESET); |
| 457 | |
| 458 | /* Enable screen memory. */ |
| 459 | vga_sr_write(1, vga_sr_read(1) & ~0x20); |
| 460 | |
| 461 | /* Clear interrupts. */ |
| 462 | write32(mmio + DEIIR, 0xffffffff); |
| 463 | write32(mmio + SDEIIR, 0xffffffff); |
| 464 | |
Alexandru Gagniuc | 9647094 | 2015-09-07 03:06:31 -0700 | [diff] [blame] | 465 | if (IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE)) { |
| 466 | memset ((void *) lfb, 0, edid.x_resolution |
| 467 | * edid.y_resolution * 4); |
| 468 | set_vbe_mode_info_valid(&edid, lfb); |
| 469 | } |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 470 | |
| 471 | /* Linux relies on VBT for panel info. */ |
Vladimir Serbinenko | a71bdc3 | 2014-08-30 00:35:39 +0200 | [diff] [blame] | 472 | generate_fake_intel_oprom(info, dev_find_slot(0, PCI_DEVFN(2, 0)), |
Arthur Heymans | d3284a6 | 2016-09-25 22:48:00 +0200 | [diff] [blame] | 473 | "$VBT SNB/IVB-MOBILE"); |
Vladimir Serbinenko | 9ba922f | 2014-08-24 22:38:07 +0200 | [diff] [blame] | 474 | |
| 475 | return 1; |
| 476 | } |