| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2013, 2014 Vladimir Serbinenko |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 or (at your option) |
| * any later version of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc. |
| */ |
| |
| #include <arch/io.h> |
| #include <console/console.h> |
| #include <delay.h> |
| #include <device/device.h> |
| #include <string.h> |
| |
| #include <drivers/intel/gma/edid.h> |
| #include <drivers/intel/gma/i915.h> |
| #include "gma.h" |
| #include "chip.h" |
| #include <pc80/vga.h> |
| #include <pc80/vga_io.h> |
| #include <device/pci_def.h> |
| #include <device/pci_rom.h> |
| |
| static void train_link(u8 *mmio) |
| { |
| /* Clear interrupts. */ |
| write32(mmio + DEIIR, 0xffffffff); |
| |
| write32(mmio + 0xf000c, 0x2040); |
| write32(mmio + 0xf000c, 0x2050); |
| write32(mmio + 0x60100, 0x44000); |
| write32(mmio + 0xf000c, 0x22050); |
| |
| mdelay(1); |
| |
| write32(mmio + 0x000f0018, 0x0000008ff); |
| write32(mmio + 0x000f1018, 0x0000008ff); |
| |
| write32(mmio + 0x000f000c, 0x001a2050); |
| write32(mmio + 0x00060100, 0x001c4000); |
| |
| write32(mmio + 0x00060100, 0x801c4000); |
| write32(mmio + 0x000f000c, 0x801a2050); |
| |
| write32(mmio + 0x00060100, 0x801c4000); |
| write32(mmio + 0x000f000c, 0x801a2050); |
| mdelay(1); |
| |
| read32(mmio + 0x000f0014); // = 0x00000100 |
| write32(mmio + 0x000f0014, 0x00000100); |
| write32(mmio + 0x00060100, 0x901c4000); |
| write32(mmio + 0x000f000c, 0x801a2150); |
| mdelay(1); |
| read32(mmio + 0x000f0014); // = 0x00000600 |
| } |
| |
| static void power_port(u8 *mmio) |
| { |
| read32(mmio + 0x000e1100); // = 0x00000000 |
| write32(mmio + 0x000e1100, 0x00000000); |
| write32(mmio + 0x000e1100, 0x00010000); |
| read32(mmio + 0x000e1100); // = 0x00010000 |
| read32(mmio + 0x000e1100); // = 0x00010000 |
| read32(mmio + 0x000e1100); // = 0x00000000 |
| write32(mmio + 0x000e1100, 0x00000000); |
| read32(mmio + 0x000e1100); // = 0x00000000 |
| read32(mmio + 0x000e4200); // = 0x0000001c |
| write32(mmio + 0x000e4210, 0x8004003e); |
| write32(mmio + 0x000e4214, 0x80060002); |
| write32(mmio + 0x000e4218, 0x01000000); |
| read32(mmio + 0x000e4210); // = 0x5144003e |
| write32(mmio + 0x000e4210, 0x5344003e); |
| read32(mmio + 0x000e4210); // = 0x0144003e |
| write32(mmio + 0x000e4210, 0x8074003e); |
| read32(mmio + 0x000e4210); // = 0x5144003e |
| read32(mmio + 0x000e4210); // = 0x5144003e |
| write32(mmio + 0x000e4210, 0x5344003e); |
| read32(mmio + 0x000e4210); // = 0x0144003e |
| write32(mmio + 0x000e4210, 0x8074003e); |
| read32(mmio + 0x000e4210); // = 0x5144003e |
| read32(mmio + 0x000e4210); // = 0x5144003e |
| write32(mmio + 0x000e4210, 0x5344003e); |
| read32(mmio + 0x000e4210); // = 0x0144003e |
| write32(mmio + 0x000e4210, 0x8074003e); |
| read32(mmio + 0x000e4210); // = 0x5144003e |
| read32(mmio + 0x000e4210); // = 0x5144003e |
| write32(mmio + 0x000e4210, 0x5344003e); |
| write32(mmio + 0x000e4f00, 0x0100030c); |
| write32(mmio + 0x000e4f04, 0x00b8230c); |
| write32(mmio + 0x000e4f08, 0x06f8930c); |
| write32(mmio + 0x000e4f0c, 0x09f8e38e); |
| write32(mmio + 0x000e4f10, 0x00b8030c); |
| write32(mmio + 0x000e4f14, 0x0b78830c); |
| write32(mmio + 0x000e4f18, 0x0ff8d3cf); |
| write32(mmio + 0x000e4f1c, 0x01e8030c); |
| write32(mmio + 0x000e4f20, 0x0ff863cf); |
| write32(mmio + 0x000e4f24, 0x0ff803cf); |
| write32(mmio + 0x000c4030, 0x00001000); |
| read32(mmio + 0x000c4000); // = 0x00000000 |
| write32(mmio + 0x000c4030, 0x00001000); |
| read32(mmio + 0x000e1150); // = 0x0000001c |
| write32(mmio + 0x000e1150, 0x0000089c); |
| write32(mmio + 0x000fcc00, 0x01986f00); |
| write32(mmio + 0x000fcc0c, 0x01986f00); |
| write32(mmio + 0x000fcc18, 0x01986f00); |
| write32(mmio + 0x000fcc24, 0x01986f00); |
| read32(mmio + 0x000c4000); // = 0x00000000 |
| read32(mmio + 0x000e1180); // = 0x40000002 |
| } |
| |
| int i915lightup_sandy(const struct i915_gpu_controller_info *info, |
| u32 physbase, u16 piobase, u8 *mmio, u32 lfb) |
| { |
| int i; |
| u8 edid_data[128]; |
| struct edid edid; |
| struct edid_mode *mode; |
| u32 hactive, vactive, right_border, bottom_border; |
| int hpolarity, vpolarity; |
| u32 vsync, hsync, vblank, hblank, hfront_porch, vfront_porch; |
| u32 candp1, candn; |
| u32 best_delta = 0xffffffff; |
| u32 target_frequency; |
| u32 pixel_p1 = 1; |
| u32 pixel_n = 1; |
| u32 pixel_m1 = 1; |
| u32 pixel_m2 = 1; |
| u32 link_frequency = info->link_frequency_270_mhz ? 270000 : 162000; |
| u32 data_m1; |
| u32 data_n1 = 0x00800000; |
| u32 link_m1; |
| u32 link_n1 = 0x00080000; |
| |
| if (!IS_ENABLED(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT)) |
| return 0; |
| |
| write32(mmio + 0x00070080, 0x00000000); |
| write32(mmio + DSPCNTR(0), 0x00000000); |
| write32(mmio + 0x00071180, 0x00000000); |
| write32(mmio + CPU_VGACNTRL, 0x0000298e | VGA_DISP_DISABLE); |
| write32(mmio + 0x0007019c, 0x00000000); |
| write32(mmio + 0x0007119c, 0x00000000); |
| write32(mmio + 0x000ec008, 0x2c010000); |
| write32(mmio + 0x000ec020, 0x2c010000); |
| write32(mmio + 0x000ec038, 0x2c010000); |
| write32(mmio + 0x000ec050, 0x2c010000); |
| write32(mmio + 0x000ec408, 0x2c010000); |
| write32(mmio + 0x000ec420, 0x2c010000); |
| write32(mmio + 0x000ec438, 0x2c010000); |
| write32(mmio + 0x000ec450, 0x2c010000); |
| vga_gr_write(0x18, 0); |
| write32(mmio + 0x00042004, 0x02000000); |
| write32(mmio + 0x000fd034, 0x8421ffe0); |
| |
| /* Setup GTT. */ |
| for (i = 0; i < 0x2000; i++) |
| { |
| outl((i << 2) | 1, piobase); |
| outl(physbase + (i << 12) + 1, piobase + 4); |
| } |
| |
| vga_misc_write(0x67); |
| |
| const u8 cr[] = { 0x5f, 0x4f, 0x50, 0x82, 0x55, 0x81, 0xbf, 0x1f, |
| 0x00, 0x4f, 0x0d, 0x0e, 0x00, 0x00, 0x00, 0x00, |
| 0x9c, 0x8e, 0x8f, 0x28, 0x1f, 0x96, 0xb9, 0xa3, |
| 0xff |
| }; |
| vga_cr_write(0x11, 0); |
| |
| for (i = 0; i <= 0x18; i++) |
| vga_cr_write(i, cr[i]); |
| |
| power_port(mmio); |
| |
| intel_gmbus_read_edid(mmio + PCH_GMBUS0, 3, 0x50, edid_data, 128); |
| decode_edid(edid_data, sizeof(edid_data), &edid); |
| mode = &edid.mode; |
| |
| /* Disable screen memory to prevent garbage from appearing. */ |
| vga_sr_write(1, vga_sr_read(1) | 0x20); |
| |
| hactive = edid.x_resolution; |
| vactive = edid.y_resolution; |
| right_border = mode->hborder; |
| bottom_border = mode->vborder; |
| hpolarity = (mode->phsync == '-'); |
| vpolarity = (mode->pvsync == '-'); |
| vsync = mode->vspw; |
| hsync = mode->hspw; |
| vblank = mode->vbl; |
| hblank = mode->hbl; |
| hfront_porch = mode->hso; |
| vfront_porch = mode->vso; |
| |
| target_frequency = info->lvds_dual_channel ? mode->pixel_clock |
| : (2 * mode->pixel_clock); |
| |
| if (IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE)) { |
| vga_sr_write(1, 1); |
| vga_sr_write(0x2, 0xf); |
| vga_sr_write(0x3, 0x0); |
| vga_sr_write(0x4, 0xe); |
| vga_gr_write(0, 0x0); |
| vga_gr_write(1, 0x0); |
| vga_gr_write(2, 0x0); |
| vga_gr_write(3, 0x0); |
| vga_gr_write(4, 0x0); |
| vga_gr_write(5, 0x0); |
| vga_gr_write(6, 0x5); |
| vga_gr_write(7, 0xf); |
| vga_gr_write(0x10, 0x1); |
| vga_gr_write(0x11, 0); |
| |
| edid.bytes_per_line = (edid.bytes_per_line + 63) & ~63; |
| |
| write32(mmio + DSPCNTR(0), DISPPLANE_BGRX888); |
| write32(mmio + DSPADDR(0), 0); |
| write32(mmio + DSPSTRIDE(0), edid.bytes_per_line); |
| write32(mmio + DSPSURF(0), 0); |
| for (i = 0; i < 0x100; i++) |
| write32(mmio + LGC_PALETTE(0) + 4 * i, i * 0x010101); |
| } else { |
| vga_textmode_init(); |
| } |
| |
| /* Find suitable divisors. */ |
| for (candp1 = 1; candp1 <= 8; candp1++) { |
| for (candn = 5; candn <= 10; candn++) { |
| u32 cur_frequency; |
| u32 m; /* 77 - 131. */ |
| u32 denom; /* 35 - 560. */ |
| u32 current_delta; |
| |
| denom = candn * candp1 * 7; |
| /* Doesnt overflow for up to |
| 5000000 kHz = 5 GHz. */ |
| m = (target_frequency * denom + 60000) / 120000; |
| |
| if (m < 77 || m > 131) |
| continue; |
| |
| cur_frequency = (120000 * m) / denom; |
| if (target_frequency > cur_frequency) |
| current_delta = target_frequency - cur_frequency; |
| else |
| current_delta = cur_frequency - target_frequency; |
| |
| |
| if (best_delta > current_delta) { |
| best_delta = current_delta; |
| pixel_n = candn; |
| pixel_p1 = candp1; |
| pixel_m2 = ((m + 3) % 5) + 7; |
| pixel_m1 = (m - pixel_m2) / 5; |
| } |
| } |
| } |
| |
| if (best_delta == 0xffffffff) { |
| printk (BIOS_ERR, "Couldn't find GFX clock divisors\n"); |
| return 0; |
| } |
| |
| link_m1 = ((uint64_t)link_n1 * mode->pixel_clock) / link_frequency; |
| data_m1 = ((uint64_t)data_n1 * 18 * mode->pixel_clock) |
| / (link_frequency * 8 * (info->lvds_num_lanes ? : 4)); |
| |
| printk(BIOS_INFO, "bringing up panel at resolution %d x %d\n", |
| hactive, vactive); |
| printk(BIOS_DEBUG, "Borders %d x %d\n", |
| right_border, bottom_border); |
| printk(BIOS_DEBUG, "Blank %d x %d\n", |
| hblank, vblank); |
| printk(BIOS_DEBUG, "Sync %d x %d\n", |
| hsync, vsync); |
| printk(BIOS_DEBUG, "Front porch %d x %d\n", |
| hfront_porch, vfront_porch); |
| printk(BIOS_DEBUG, (info->use_spread_spectrum_clock |
| ? "Spread spectrum clock\n" : "DREF clock\n")); |
| printk(BIOS_DEBUG, |
| info->lvds_dual_channel ? "Dual channel\n" : "Single channel\n"); |
| printk(BIOS_DEBUG, "Polarities %d, %d\n", |
| hpolarity, vpolarity); |
| printk(BIOS_DEBUG, "Data M1=%d, N1=%d\n", |
| data_m1, data_n1); |
| printk(BIOS_DEBUG, "Link frequency %d kHz\n", |
| link_frequency); |
| printk(BIOS_DEBUG, "Link M1=%d, N1=%d\n", |
| link_m1, link_n1); |
| printk(BIOS_DEBUG, "Pixel N=%d, M1=%d, M2=%d, P1=%d\n", |
| pixel_n, pixel_m1, pixel_m2, pixel_p1); |
| printk(BIOS_DEBUG, "Pixel clock %d kHz\n", |
| 120000 * (5 * pixel_m1 + pixel_m2) / pixel_n |
| / (pixel_p1 * 7)); |
| |
| write32(mmio + PCH_LVDS, |
| (hpolarity << 20) | (vpolarity << 21) |
| | (info->lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL |
| | LVDS_CLOCK_BOTH_POWERUP_ALL : 0) |
| | LVDS_BORDER_ENABLE | LVDS_CLOCK_A_POWERUP_ALL |
| | LVDS_DETECTED); |
| write32(mmio + BLC_PWM_CPU_CTL2, (1 << 31)); |
| write32(mmio + PCH_DREF_CONTROL, (info->use_spread_spectrum_clock |
| ? 0x1002 : 0x400)); |
| mdelay(1); |
| write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS |
| | (read32(mmio + PCH_PP_CONTROL) & ~PANEL_UNLOCK_MASK)); |
| write32(mmio + _PCH_FP0(0), |
| ((pixel_n - 2) << 16) |
| | ((pixel_m1 - 2) << 8) | pixel_m2); |
| write32(mmio + PCH_DPLL_SEL, 8); |
| write32(mmio + _PCH_DPLL(0), |
| DPLL_VCO_ENABLE | DPLLB_MODE_LVDS |
| | (info->lvds_dual_channel ? DPLLB_LVDS_P2_CLOCK_DIV_7 |
| : DPLLB_LVDS_P2_CLOCK_DIV_14) |
| | (0x10000 << (pixel_p1 - 1)) |
| | ((info->use_spread_spectrum_clock ? 3 : 0) << 13) |
| | (0x1 << (pixel_p1 - 1))); |
| mdelay(1); |
| write32(mmio + _PCH_DPLL(0), |
| DPLL_VCO_ENABLE | DPLLB_MODE_LVDS |
| | (info->lvds_dual_channel ? DPLLB_LVDS_P2_CLOCK_DIV_7 |
| : DPLLB_LVDS_P2_CLOCK_DIV_14) |
| | (0x10000 << (pixel_p1 - 1)) |
| | ((info->use_spread_spectrum_clock ? 3 : 0) << 13) |
| | (0x1 << (pixel_p1 - 1))); |
| /* Re-lock the registers. */ |
| write32(mmio + PCH_PP_CONTROL, |
| (read32(mmio + PCH_PP_CONTROL) & ~PANEL_UNLOCK_MASK)); |
| |
| write32(mmio + PCH_LVDS, |
| (hpolarity << 20) | (vpolarity << 21) |
| | (info->lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL |
| | LVDS_CLOCK_BOTH_POWERUP_ALL : 0) |
| | LVDS_BORDER_ENABLE | LVDS_CLOCK_A_POWERUP_ALL |
| | LVDS_DETECTED); |
| |
| write32(mmio + HTOTAL(0), |
| ((hactive + right_border + hblank - 1) << 16) |
| | (hactive - 1)); |
| write32(mmio + HBLANK(0), |
| ((hactive + right_border + hblank - 1) << 16) |
| | (hactive + right_border - 1)); |
| write32(mmio + HSYNC(0), |
| ((hactive + right_border + hfront_porch + hsync - 1) << 16) |
| | (hactive + right_border + hfront_porch - 1)); |
| |
| write32(mmio + VTOTAL(0), ((vactive + bottom_border + vblank - 1) << 16) |
| | (vactive - 1)); |
| write32(mmio + VBLANK(0), ((vactive + bottom_border + vblank - 1) << 16) |
| | (vactive + bottom_border - 1)); |
| write32(mmio + VSYNC(0), |
| (vactive + bottom_border + vfront_porch + vsync - 1) |
| | (vactive + bottom_border + vfront_porch - 1)); |
| |
| write32(mmio + PIPECONF(0), PIPECONF_DISABLE); |
| |
| write32(mmio + PF_WIN_POS(0), 0); |
| if (IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE)) { |
| write32(mmio + PIPESRC(0), ((hactive - 1) << 16) | (vactive - 1)); |
| write32(mmio + PF_CTL(0),0); |
| write32(mmio + PF_WIN_SZ(0), 0); |
| } else { |
| write32(mmio + PIPESRC(0), (639 << 16) | 399); |
| write32(mmio + PF_CTL(0),PF_ENABLE | PF_FILTER_MED_3x3); |
| write32(mmio + PF_WIN_SZ(0), vactive | (hactive << 16)); |
| } |
| |
| mdelay(1); |
| |
| write32(mmio + PIPE_DATA_M1(0), 0x7e000000 | data_m1); |
| write32(mmio + PIPE_DATA_N1(0), data_n1); |
| write32(mmio + PIPE_LINK_M1(0), link_m1); |
| write32(mmio + PIPE_LINK_N1(0), link_n1); |
| |
| write32(mmio + 0x000f000c, 0x00002040); |
| mdelay(1); |
| write32(mmio + 0x000f000c, 0x00002050); |
| write32(mmio + 0x00060100, 0x00044000); |
| mdelay(1); |
| write32(mmio + PIPECONF(0), PIPECONF_BPP_6); |
| write32(mmio + 0x000f000c, 0x00022050); |
| write32(mmio + PIPECONF(0), PIPECONF_BPP_6 | PIPECONF_DITHER_EN); |
| write32(mmio + PIPECONF(0), PIPECONF_ENABLE | PIPECONF_BPP_6 | PIPECONF_DITHER_EN); |
| |
| if (IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE)) |
| write32(mmio + CPU_VGACNTRL, 0x20298e | VGA_DISP_DISABLE); |
| else |
| write32(mmio + CPU_VGACNTRL, 0x20298e); |
| |
| train_link(mmio); |
| |
| if (IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE)) { |
| write32(mmio + DSPCNTR(0), DISPLAY_PLANE_ENABLE | DISPPLANE_BGRX888); |
| mdelay(1); |
| } |
| |
| write32(mmio + TRANS_HTOTAL(0), |
| ((hactive + right_border + hblank - 1) << 16) |
| | (hactive - 1)); |
| write32(mmio + TRANS_HBLANK(0), |
| ((hactive + right_border + hblank - 1) << 16) |
| | (hactive + right_border - 1)); |
| write32(mmio + TRANS_HSYNC(0), |
| ((hactive + right_border + hfront_porch + hsync - 1) << 16) |
| | (hactive + right_border + hfront_porch - 1)); |
| |
| write32(mmio + TRANS_VTOTAL(0), |
| ((vactive + bottom_border + vblank - 1) << 16) |
| | (vactive - 1)); |
| write32(mmio + TRANS_VBLANK(0), |
| ((vactive + bottom_border + vblank - 1) << 16) |
| | (vactive + bottom_border - 1)); |
| write32(mmio + TRANS_VSYNC(0), |
| (vactive + bottom_border + vfront_porch + vsync - 1) |
| | (vactive + bottom_border + vfront_porch - 1)); |
| |
| write32(mmio + 0x00060100, 0xb01c4000); |
| write32(mmio + 0x000f000c, 0x801a2350); |
| mdelay(1); |
| |
| if (IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE)) |
| write32(mmio + TRANSCONF(0), TRANS_ENABLE | TRANS_6BPC |
| | TRANS_STATE_MASK); |
| else |
| write32(mmio + TRANSCONF(0), TRANS_ENABLE | TRANS_6BPC); |
| |
| write32(mmio + PCH_LVDS, |
| LVDS_PORT_ENABLE |
| | (hpolarity << 20) | (vpolarity << 21) |
| | (info->lvds_dual_channel ? LVDS_CLOCK_B_POWERUP_ALL |
| | LVDS_CLOCK_BOTH_POWERUP_ALL : 0) |
| | LVDS_BORDER_ENABLE | LVDS_CLOCK_A_POWERUP_ALL |
| | LVDS_DETECTED); |
| |
| write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS | PANEL_POWER_OFF); |
| write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS | PANEL_POWER_RESET); |
| mdelay(1); |
| write32(mmio + PCH_PP_CONTROL, PANEL_UNLOCK_REGS |
| | PANEL_POWER_ON | PANEL_POWER_RESET); |
| |
| printk (BIOS_DEBUG, "waiting for panel powerup\n"); |
| while (1) { |
| u32 reg32; |
| reg32 = read32(mmio + PCH_PP_STATUS); |
| if (((reg32 >> 28) & 3) == 0) |
| break; |
| } |
| printk (BIOS_DEBUG, "panel powered up\n"); |
| |
| write32(mmio + PCH_PP_CONTROL, PANEL_POWER_ON | PANEL_POWER_RESET); |
| |
| /* Enable screen memory. */ |
| vga_sr_write(1, vga_sr_read(1) & ~0x20); |
| |
| /* Clear interrupts. */ |
| write32(mmio + DEIIR, 0xffffffff); |
| write32(mmio + SDEIIR, 0xffffffff); |
| |
| if (IS_ENABLED(CONFIG_FRAMEBUFFER_KEEP_VESA_MODE)) { |
| memset ((void *) lfb, 0, edid.x_resolution |
| * edid.y_resolution * 4); |
| set_vbe_mode_info_valid(&edid, lfb); |
| } |
| |
| /* Linux relies on VBT for panel info. */ |
| generate_fake_intel_oprom(info, dev_find_slot(0, PCI_DEVFN(2, 0)), |
| "$VBT SNB/IVB-MOBILE "); |
| |
| return 1; |
| } |