Isaac Christensen (isaac.christensen@se-eng.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/6913
-gerrit
commit 2753d65ea749d8be45f3ad17652cad6e85845d18 Author: Ronald G. Minnich rminnich@google.com Date: Tue Dec 17 15:24:24 2013 -0800
slippy: remove FUI support
There's no reason to keep maintaining support on this mainboard, since nobody has one.
Change-Id: I5c7c8ea4640170ba231fec82a94a54ee1876b845 Signed-off-by: Ronald G. Minnich rminnich@google.com Reviewed-on: https://chromium-review.googlesource.com/180503 Reviewed-by: Ronald Minnich rminnich@chromium.org Commit-Queue: Ronald Minnich rminnich@chromium.org Tested-by: Ronald Minnich rminnich@chromium.org (cherry picked from commit e291d82acbc8bf0d1372e11ac100a7dd340a0040) Signed-off-by: Isaac Christensen isaac.christensen@se-eng.com --- src/mainboard/google/slippy/Makefile.inc | 1 - src/mainboard/google/slippy/gma.c | 388 ------------------------------- src/mainboard/google/slippy/i915io.c | 135 ----------- 3 files changed, 524 deletions(-)
diff --git a/src/mainboard/google/slippy/Makefile.inc b/src/mainboard/google/slippy/Makefile.inc index 9e3c310..37378b1 100644 --- a/src/mainboard/google/slippy/Makefile.inc +++ b/src/mainboard/google/slippy/Makefile.inc @@ -21,7 +21,6 @@ ramstage-$(CONFIG_EC_GOOGLE_CHROMEEC) += ec.c
romstage-y += chromeos.c ramstage-y += chromeos.c -ramstage-$(CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT) += gma.c i915io.c
smm-$(CONFIG_HAVE_SMI_HANDLER) += smihandler.c
diff --git a/src/mainboard/google/slippy/gma.c b/src/mainboard/google/slippy/gma.c deleted file mode 100644 index bbb4e72..0000000 --- a/src/mainboard/google/slippy/gma.c +++ /dev/null @@ -1,388 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright 2013 Google Inc. - * - * 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 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include <types.h> -#include <string.h> -#include <stdlib.h> -#include <device/device.h> -#include <device/device.h> -#include <device/pci_def.h> -#include <device/pci_ops.h> -#include <console/console.h> -#include <delay.h> -#include <pc80/mc146818rtc.h> -#include <arch/acpi.h> -#include <arch/io.h> -#include <arch/interrupt.h> -#include <boot/coreboot_tables.h> -#include <smbios.h> -#include <device/pci.h> -#include <ec/google/chromeec/ec.h> -#include <cbfs_core.h> - -#include <cpu/x86/tsc.h> -#include <cpu/x86/cache.h> -#include <cpu/x86/mtrr.h> -#include <cpu/x86/msr.h> -#include <edid.h> -#include <drivers/intel/gma/i915.h> -#include "mainboard.h" - -/* - * Here is the rough outline of how we bring up the display: - * 1. Upon power-on Sink generates a hot plug detection pulse thru HPD - * 2. Source determines video mode by reading DPCD receiver capability field - * (DPCD 00000h to 0000Dh) including eDP CP capability register (DPCD - * 0000Dh). - * 3. Sink replies DPCD receiver capability field. - * 4. Source starts EDID read thru I2C-over-AUX. - * 5. Sink replies EDID thru I2C-over-AUX. - * 6. Source determines link configuration, such as MAX_LINK_RATE and - * MAX_LANE_COUNT. Source also determines which type of eDP Authentication - * method to use and writes DPCD link configuration field (DPCD 00100h to - * 0010Ah) including eDP configuration set (DPCD 0010Ah). - * 7. Source starts link training. Sink does clock recovery and equalization. - * 8. Source reads DPCD link status field (DPCD 00200h to 0020Bh). - * 9. Sink replies DPCD link status field. If main link is not stable, Source - * repeats Step 7. - * 10. Source sends MSA (Main Stream Attribute) data. Sink extracts video - * parameters and recovers stream clock. - * 11. Source sends video data. - */ - -/* how many bytes do we need for the framebuffer? - * Well, this gets messy. To get an exact answer, we have - * to ask the panel, but we'd rather zero the memory - * and set up the gtt while the panel powers up. So, - * we take a reasonable guess, secure in the knowledge that the - * MRC has to overestimate the number of bytes used. - * 8 MiB is a very safe guess. There may be a better way later, but - * fact is, the initial framebuffer is only very temporary. And taking - * a little long is ok; this is done much faster than the AUX - * channel is ready for IO. - */ -#define FRAME_BUFFER_BYTES (8*MiB) -/* how many 4096-byte pages do we need for the framebuffer? - * There are hard ways to get this, and easy ways: - * there are FRAME_BUFFER_BYTES/4096 pages, since pages are 4096 - * on this chip (and in fact every Intel graphics chip we've seen). - */ -#define FRAME_BUFFER_PAGES (FRAME_BUFFER_BYTES/(4096)) - -static unsigned int *mmio; -static unsigned int graphics; -static unsigned int physbase; - -void ug1(int); -void ug2(int); -void ug22(int); -void ug3(int); - -/* GTT is the Global Translation Table for the graphics pipeline. - * It is used to translate graphics addresses to physical - * memory addresses. As in the CPU, GTTs map 4K pages. - * The setgtt function adds a further bit of flexibility: - * it allows you to set a range (the first two parameters) to point - * to a physical address (third parameter);the physical address is - * incremented by a count (fourth parameter) for each GTT in the - * range. - * Why do it this way? For ultrafast startup, - * we can point all the GTT entries to point to one page, - * and set that page to 0s: - * memset(physbase, 0, 4096); - * setgtt(0, 4250, physbase, 0); - * this takes about 2 ms, and is a win because zeroing - * the page takes a up to 200 ms. - * This call sets the GTT to point to a linear range of pages - * starting at physbase. - */ - -#define GTT_PTE_BASE (2 << 20) - -static void -setgtt(int start, int end, unsigned long base, int inc) -{ - int i; - - for(i = start; i < end; i++){ - u32 word = base + i*inc; - /* note: we've confirmed by checking - * the values that mrc does no - * useful setup before we run this. - */ - gtt_write(GTT_PTE_BASE + i * 4, word|1); - gtt_read(GTT_PTE_BASE + i * 4); - } -} - -static int i915_init_done = 0; - -/* fill the palette. */ -static void palette(void) -{ - int i; - unsigned long color = 0; - - for(i = 0; i < 256; i++, color += 0x010101){ - gtt_write(_LGC_PALETTE_A + (i<<2),color); - } -} - -void dp_init_dim_regs(struct intel_dp *dp); -void dp_init_dim_regs(struct intel_dp *dp) -{ - struct edid *edid = &(dp->edid); - - dp->bytes_per_pixel = edid->framebuffer_bits_per_pixel / 8; - - dp->stride = edid->bytes_per_line; - - dp->htotal = (edid->ha - 1) | ((edid->ha + edid->hbl - 1) << 16); - - dp->hblank = (edid->ha - 1) | ((edid->ha + edid->hbl - 1) << 16); - - dp->hsync = (edid->ha + edid->hso - 1) | - ((edid->ha + edid->hso + edid->hspw - 1) << 16); - - dp->vtotal = (edid->va - 1) | ((edid->va + edid->vbl - 1) << 16); - - dp->vblank = (edid->va - 1) | ((edid->va + edid->vbl - 1) << 16); - - dp->vsync = (edid->va + edid->vso - 1) | - ((edid->va + edid->vso + edid->vspw - 1) << 16); - - /* PIPEASRC is wid-1 x ht-1 */ - dp->pipesrc = (edid->ha-1)<<16 | (edid->va-1); - - dp->pfa_pos = 0; - - dp->pfa_ctl = 0x80800000; - - dp->pfa_sz = (edid->ha << 16) | (edid->va); - - dp->flags = intel_ddi_calc_transcoder_flags(3 * 6, /* bits per color is 6 */ - dp->port, - dp->pipe, - dp->type, - dp->lane_count, - dp->pfa_sz, - dp->edid.phsync == '+'?1:0, - dp->edid.pvsync == '+'?1:0); - - dp->transcoder = intel_ddi_get_transcoder(dp->port, - dp->pipe); - - intel_dp_compute_m_n(dp->pipe_bits_per_pixel, - dp->lane_count, - dp->edid.pixel_clock, - dp->edid.link_clock, - &dp->m_n); - - printk(BIOS_SPEW, "dp->stride = 0x%08x\n",dp->stride); - printk(BIOS_SPEW, "dp->htotal = 0x%08x\n", dp->htotal); - printk(BIOS_SPEW, "dp->hblank = 0x%08x\n", dp->hblank); - printk(BIOS_SPEW, "dp->hsync = 0x%08x\n", dp->hsync); - printk(BIOS_SPEW, "dp->vtotal = 0x%08x\n", dp->vtotal); - printk(BIOS_SPEW, "dp->vblank = 0x%08x\n", dp->vblank); - printk(BIOS_SPEW, "dp->vsync = 0x%08x\n", dp->vsync); - printk(BIOS_SPEW, "dp->pipesrc = 0x%08x\n", dp->pipesrc); - printk(BIOS_SPEW, "dp->pfa_pos = 0x%08x\n", dp->pfa_pos); - printk(BIOS_SPEW, "dp->pfa_ctl = 0x%08x\n", dp->pfa_ctl); - printk(BIOS_SPEW, "dp->pfa_sz = 0x%08x\n", dp->pfa_sz); - printk(BIOS_SPEW, "dp->link_m = 0x%08x\n", dp->m_n.link_m); - printk(BIOS_SPEW, "dp->link_n = 0x%08x\n", dp->m_n.link_n); - printk(BIOS_SPEW, "0x6f030 = 0x%08x\n", TU_SIZE(dp->m_n.tu) | dp->m_n.gmch_m); - printk(BIOS_SPEW, "0x6f030 = 0x%08x\n", dp->m_n.gmch_m); - printk(BIOS_SPEW, "0x6f034 = 0x%08x\n", dp->m_n.gmch_n); - printk(BIOS_SPEW, "dp->flags = 0x%08x\n", dp->flags); -} - -void mainboard_train_link(struct intel_dp *intel_dp) -{ - u8 read_val; - u8 link_status[DP_LINK_STATUS_SIZE]; - - gtt_write(DP_TP_CTL(intel_dp->port),DP_TP_CTL_ENABLE | DP_TP_CTL_ENHANCED_FRAME_ENABLE); - gtt_write(DP_A, DP_PORT_EN | DP_LINK_TRAIN_PAT_1 | DP_LINK_TRAIN_PAT_1_CPT | DP_VOLTAGE_0_4 | DP_PRE_EMPHASIS_0 | DP_PORT_WIDTH_1 | DP_PLL_FREQ_270MHZ | DP_SYNC_VS_HIGH |0x80000011); - - intel_dp_get_training_pattern(intel_dp, &read_val); - intel_dp_set_training_pattern(intel_dp, DP_TRAINING_PATTERN_1 | DP_LINK_QUAL_PATTERN_DISABLE | DP_SYMBOL_ERROR_COUNT_BOTH); - intel_dp_get_lane_count(intel_dp, &read_val); - intel_dp_set_training_lane0(intel_dp, DP_TRAIN_VOLTAGE_SWING_400 | DP_TRAIN_PRE_EMPHASIS_0); - intel_dp_get_link_status(intel_dp, link_status); - - gtt_write(DP_TP_CTL(intel_dp->port),DP_TP_CTL_ENABLE | DP_TP_CTL_ENHANCED_FRAME_ENABLE | DP_TP_CTL_LINK_TRAIN_PAT2); - - intel_dp_get_training_pattern(intel_dp, &read_val); - intel_dp_set_training_pattern(intel_dp, DP_TRAINING_PATTERN_2 | DP_LINK_QUAL_PATTERN_DISABLE | DP_SYMBOL_ERROR_COUNT_BOTH); - intel_dp_get_link_status(intel_dp, link_status); - intel_dp_get_lane_align_status(intel_dp, &read_val); - intel_dp_get_training_pattern(intel_dp, &read_val); - intel_dp_set_training_pattern(intel_dp, DP_TRAINING_PATTERN_DISABLE | DP_LINK_QUAL_PATTERN_DISABLE | DP_SYMBOL_ERROR_COUNT_BOTH); -} - -#define TEST_GFX 0 - -#if TEST_GFX -static void test_gfx(struct intel_dp *dp) -{ - int i; - - /* This is a sanity test code which fills the screen with two bands -- - green and blue. It is very useful to ensure all the initializations - are made right. Thus, to be used only for testing, not otherwise - */ - for (i = 0; i < (dp->edid.va - 4); i++) { - u32 *l; - int j; - u32 tcolor = 0x0ff; - for (j = 0; j < (dp->edid.ha-4); j++) { - if (j == (dp->edid.ha/2)) { - tcolor = 0xff00; - } - l = (u32*)(graphics + i * dp->stride + j * sizeof(tcolor)); - memcpy(l,&tcolor,sizeof(tcolor)); - } - } -} -#else -static void test_gfx(struct intel_dp *dp) {} -#endif - - -void mainboard_set_port_clk_dp(struct intel_dp *intel_dp) -{ - u32 ddi_pll_sel = 0; - - switch (intel_dp->link_bw) { - case DP_LINK_BW_1_62: - ddi_pll_sel = PORT_CLK_SEL_LCPLL_810; - break; - case DP_LINK_BW_2_7: - ddi_pll_sel = PORT_CLK_SEL_LCPLL_1350; - break; - case DP_LINK_BW_5_4: - ddi_pll_sel = PORT_CLK_SEL_LCPLL_2700; - break; - default: - printk(BIOS_ERR, "invalid link bw %d\n", intel_dp->link_bw); - return; - } - - gtt_write(PORT_CLK_SEL(intel_dp->port), ddi_pll_sel); -} - -int i915lightup(unsigned int pphysbase, unsigned int pmmio, - unsigned int pgfx, unsigned int init_fb) -{ - int must_cycle_power = 0; - struct intel_dp adp, *dp = &adp; - int i; - int edid_ok; - int pixels = FRAME_BUFFER_BYTES/64; - - mmio = (void *)pmmio; - physbase = pphysbase; - graphics = pgfx; - printk(BIOS_SPEW, - "i915lightup: graphics %p mmio %p" - "physbase %08x\n", - (void *)graphics, mmio, physbase); - - void runio(struct intel_dp *dp); - void runlinux(struct intel_dp *dp); - dp->gen = 8; // This is gen 8 which we believe is Haswell - dp->is_haswell = 1; - dp->DP = 0x2; - /* These values are used for training the link */ - dp->lane_count = 2; - dp->link_bw = DP_LINK_BW_2_7; - dp->panel_power_down_delay = 600; - dp->panel_power_up_delay = 200; - dp->panel_power_cycle_delay = 600; - dp->pipe = PIPE_A; - dp->port = PORT_A; - dp->plane = PLANE_A; - dp->clock = 160000; - dp->pipe_bits_per_pixel = 32; - dp->type = INTEL_OUTPUT_EDP; - dp->output_reg = DP_A; - /* observed from YABEL. */ - dp->aux_clock_divider = 0xe1; - dp->precharge = 3; - - /* 1. Normal mode: Set the first page to zero and make - all GTT entries point to the same page - 2. Developer/Recovery mode: We do not zero out all - the pages pointed to by GTT in order to avoid wasting time */ - if (init_fb) - setgtt(0, FRAME_BUFFER_PAGES, physbase, 4096); - else { - setgtt(0, FRAME_BUFFER_PAGES, physbase, 0); - memset((void*)graphics, 0, 4096); - } - - dp->address = 0x50; - - if ( !intel_dp_get_dpcd(dp) ) - goto fail; - - intel_dp_i2c_aux_ch(dp, MODE_I2C_WRITE, 0, NULL); - for(dp->edidlen = i = 0; i < sizeof(dp->rawedid); i++){ - if (intel_dp_i2c_aux_ch(dp, MODE_I2C_READ, - 0x50, &dp->rawedid[i]) < 0) - break; - dp->edidlen++; - } - - edid_ok = decode_edid(dp->rawedid, dp->edidlen, &dp->edid); - printk(BIOS_SPEW, "decode edid returns %d\n", edid_ok); - - dp->edid.link_clock = intel_dp_bw_code_to_link_rate(dp->link_bw); - - printk(BIOS_SPEW, "pixel_clock is %i, link_clock is %i\n",dp->edid.pixel_clock, dp->edid.link_clock); - - dp_init_dim_regs(dp); - - intel_ddi_set_pipe_settings(dp); - - runio(dp); - - palette(); - - pixels = dp->edid.ha * (dp->edid.va-4) * 4; - printk(BIOS_SPEW, "ha=%d, va=%d\n",dp->edid.ha, dp->edid.va); - - test_gfx(dp); - - set_vbe_mode_info_valid(&dp->edid, graphics); - i915_init_done = 1; - return i915_init_done; - -fail: - printk(BIOS_SPEW, "Graphics could not be started;"); - if (0 && must_cycle_power){ - printk(BIOS_SPEW, "Turn off power and wait ..."); - gtt_write(PCH_PP_CONTROL,0xabcd0000); - udelay(600000); - gtt_write(PCH_PP_CONTROL,0xabcd000f); - } - printk(BIOS_SPEW, "Returning.\n"); - return 0; -} diff --git a/src/mainboard/google/slippy/i915io.c b/src/mainboard/google/slippy/i915io.c deleted file mode 100644 index aae7f29..0000000 --- a/src/mainboard/google/slippy/i915io.c +++ /dev/null @@ -1,135 +0,0 @@ -/* -* This file is part of the coreboot project. -* -* Copyright 2013 Google Inc. -* -* 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 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -*/ - -/* This code was originally generated using an i915tool program. It has been - * improved by hand. - */ - -#include <stdint.h> -#include <console/console.h> -#include <delay.h> -#include <drivers/intel/gma/i915.h> -#include <arch/io.h> -#include "mainboard.h" - -/* these variables will be removed when the proper support is finished in src/drivers/intel/gma/intel_dp.c */ -int index; -u32 auxout; -u8 auxin[20]; -u8 msg[32]; - -/* this function will either be renamed or subsumed into ./gma.c:i915_lightup */ -void runio(struct intel_dp *dp); - -void runio(struct intel_dp *dp) -{ - u8 read_val; - - intel_dp_wait_panel_power_control(0xabcd0008); - - /* vbios spins at this point. Some haswell weirdness? */ - intel_dp_wait_panel_power_control(0xabcd0008); - - /* This should be a function like intel_panel_enable_backlight - However, we are not sure how the value 0x3a9 comes up. - It has to do something with PWM frequency */ - gtt_write(BLC_PWM_CPU_CTL,0x03a903a9); - gtt_write(BLC_PWM_PCH_CTL2,0x03a903a9); - gtt_write(BLC_PWM_PCH_CTL1,BLM_PCH_PWM_ENABLE); - - gtt_write(DEIIR,0x00008000); - intel_dp_wait_reg(DEIIR, 0x00000000); - - gtt_write(DSPSTRIDE(dp->plane),dp->stride); - - intel_dp_sink_dpms(dp, 0); - - intel_dp_get_max_downspread(dp, &read_val); - - intel_dp_set_m_n_regs(dp); - - intel_dp_set_resolution(dp); - - gtt_write(PIPESRC(dp->pipe),dp->pipesrc); - gtt_write(PIPECONF(dp->transcoder),0x00000000); - gtt_write(PCH_TRANSCONF(dp->pipe),0x00000000); - - mainboard_set_port_clk_dp(dp); - gtt_write(DSPSTRIDE(dp->plane),dp->stride); - gtt_write(DSPCNTR(dp->plane),DISPLAY_PLANE_ENABLE|DISPPLANE_RGBX888); - gtt_write(DEIIR,0x00000080); - - gtt_write(TRANS_DDI_FUNC_CTL_EDP,dp->flags); - gtt_write(PIPECONF(dp->transcoder),PIPECONF_ENABLE|PIPECONF_DITHER_EN); - - intel_dp_wait_panel_power_control(0xabcd000a); - - /* what is this doing? Not sure yet. */ - intel_dp_i2c_write(dp, 0x0); - intel_dp_i2c_read(dp, &read_val); - intel_dp_i2c_write(dp, 0x04); - intel_dp_i2c_read(dp, &read_val); - intel_dp_i2c_write(dp, 0x7e); - intel_dp_i2c_read(dp, &read_val); - - /* this needs to be a call to a function */ - gtt_write(DP_A, DP_LINK_TRAIN_PAT_1 | DP_LINK_TRAIN_PAT_1_CPT | DP_VOLTAGE_0_4 | DP_PRE_EMPHASIS_0 | DP_PORT_WIDTH_1 | DP_PLL_FREQ_270MHZ | DP_SCRAMBLING_DISABLE_IRONLAKE | DP_SYNC_VS_HIGH |0x00000091); - gtt_write(DP_TP_CTL(dp->port),DP_TP_CTL_ENABLE | DP_TP_CTL_ENHANCED_FRAME_ENABLE); - gtt_write(DP_A, DP_PORT_EN | DP_LINK_TRAIN_PAT_1 | DP_LINK_TRAIN_PAT_1_CPT | DP_VOLTAGE_0_4 | DP_PRE_EMPHASIS_0 | DP_PORT_WIDTH_1 | DP_ENHANCED_FRAMING | DP_PLL_FREQ_270MHZ | DP_SCRAMBLING_DISABLE_IRONLAKE | DP_SYNC_VS_HIGH |0x80040091); - - /* we may need to move these *after* power well power up and *before* PCH_PP_CONTROL in gma.c */ - gtt_write(PCH_PP_ON_DELAYS, PANEL_PORT_SELECT_LVDS |(/* PANEL_POWER_UP_DELAY_MASK */0x1<<16)|(/* PANEL_LIGHT_ON_DELAY_MASK */0xa<<0)|0x0001000a); - gtt_write(PCH_PP_ON_DELAYS, PANEL_PORT_SELECT_LVDS |(/* PANEL_POWER_UP_DELAY_MASK */0x7d0<<16)|(/* PANEL_LIGHT_ON_DELAY_MASK */0xa<<0)|0x07d0000a); - - intel_dp_set_bw(dp); - intel_dp_set_lane_count(dp); - - mainboard_train_link(dp); - - /* need a function: intel_ddi_set_tp or similar */ - gtt_write(DP_TP_CTL(dp->port),DP_TP_CTL_ENABLE | DP_TP_CTL_ENHANCED_FRAME_ENABLE | DP_TP_CTL_LINK_TRAIN_IDLE); - gtt_write(DP_TP_CTL(dp->port),DP_TP_CTL_ENABLE | DP_TP_CTL_ENHANCED_FRAME_ENABLE | DP_TP_CTL_LINK_TRAIN_NORMAL); - - gtt_write(BLC_PWM_CPU_CTL,0x03a903a9); - gtt_write(BLC_PWM_PCH_CTL2,0x03a903a9); - gtt_write(BLC_PWM_PCH_CTL1,0x80000000); - - /* some of this is not needed. */ - gtt_write(DIGITAL_PORT_HOTPLUG_CNTRL, DIGITAL_PORTA_HOTPLUG_ENABLE ); - - gtt_write(SDEIIR,0x00000000); - gtt_write(DEIIR,0x00000000); - gtt_write(DEIIR,0x00008000); - intel_dp_wait_reg(DEIIR, 0x00000000); - - gtt_write(DSPSTRIDE(dp->plane),dp->stride); - gtt_write(PIPESRC(dp->pipe),dp->pipesrc); - - gtt_write(DEIIR,0x00000080); - intel_dp_wait_reg(DEIIR, 0x00000000); - - gtt_write(DSPSTRIDE(dp->plane),dp->stride); - gtt_write(DSPCNTR(dp->plane),DISPLAY_PLANE_ENABLE | DISPPLANE_RGBX888); - - gtt_write(PCH_PP_CONTROL,EDP_BLC_ENABLE | PANEL_POWER_RESET | PANEL_POWER_ON); - - gtt_write(SDEIIR,0x00000000); - gtt_write(SDEIIR,0x00000000); - gtt_write(DEIIR,0x00000000); -}