mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 06:12:58 +00:00
b5126f26d0
At present this uses mtrr_add_request() & mtrr_commit() combination to program the MTRR for graphics memory. This usage has two major issues as below: - mtrr_commit() will re-initialize all MTRR registers from index 0, using the settings previously added by mtrr_add_request() and saved in gd->arch.mtrr_req[], which won't cause any issue but is unnecessary - The way such combination works is based on the assumption that U-Boot has full control with MTRR programming (e.g.: U-Boot without any blob that does all low-level initialization on its own, or using FSP2 which does not touch MTRR), but this is not the case with FSP. FSP programs some MTRRs during its execution but U-Boot does not have the settings saved in gd->arch.mtrr_req[] and when doing mtrr_commit() it will corrupt what was already programmed previously. Correct this to use mtrr_set_next_var() instead. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
783 lines
19 KiB
C
783 lines
19 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* From coreboot src/soc/intel/broadwell/igd.c
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*
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* Copyright (C) 2016 Google, Inc
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*/
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#include <common.h>
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#include <bios_emul.h>
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#include <bootstage.h>
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#include <dm.h>
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#include <init.h>
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#include <log.h>
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#include <vesa.h>
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#include <video.h>
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#include <asm/cpu.h>
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#include <asm/global_data.h>
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#include <asm/intel_regs.h>
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#include <asm/io.h>
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#include <asm/mtrr.h>
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#include <asm/arch/cpu.h>
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#include <asm/arch/iomap.h>
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#include <asm/arch/pch.h>
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#include <linux/delay.h>
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#include "i915_reg.h"
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struct broadwell_igd_priv {
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u8 *regs;
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};
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struct broadwell_igd_plat {
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u32 dp_hotplug[3];
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int port_select;
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int power_up_delay;
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int power_backlight_on_delay;
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int power_down_delay;
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int power_backlight_off_delay;
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int power_cycle_delay;
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int cpu_backlight;
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int pch_backlight;
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int cdclk;
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int pre_graphics_delay;
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};
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#define GT_RETRY 1000
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#define GT_CDCLK_337 0
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#define GT_CDCLK_450 1
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#define GT_CDCLK_540 2
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#define GT_CDCLK_675 3
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u32 board_map_oprom_vendev(u32 vendev)
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{
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return SA_IGD_OPROM_VENDEV;
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}
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static int poll32(u8 *addr, uint mask, uint value)
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{
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ulong start;
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start = get_timer(0);
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debug("%s: addr %p = %x\n", __func__, addr, readl(addr));
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while ((readl(addr) & mask) != value) {
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if (get_timer(start) > GT_RETRY) {
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debug("poll32: timeout: %x\n", readl(addr));
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return -ETIMEDOUT;
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}
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}
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return 0;
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}
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static int haswell_early_init(struct udevice *dev)
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{
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struct broadwell_igd_priv *priv = dev_get_priv(dev);
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u8 *regs = priv->regs;
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int ret;
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/* Enable Force Wake */
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writel(0x00000020, regs + 0xa180);
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writel(0x00010001, regs + 0xa188);
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ret = poll32(regs + 0x130044, 1, 1);
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if (ret)
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goto err;
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/* Enable Counters */
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setbits_le32(regs + 0xa248, 0x00000016);
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/* GFXPAUSE settings */
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writel(0x00070020, regs + 0xa000);
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/* ECO Settings */
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clrsetbits_le32(regs + 0xa180, ~0xff3fffff, 0x15000000);
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/* Enable DOP Clock Gating */
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writel(0x000003fd, regs + 0x9424);
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/* Enable Unit Level Clock Gating */
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writel(0x00000080, regs + 0x9400);
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writel(0x40401000, regs + 0x9404);
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writel(0x00000000, regs + 0x9408);
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writel(0x02000001, regs + 0x940c);
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/*
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* RC6 Settings
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*/
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/* Wake Rate Limits */
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setbits_le32(regs + 0xa090, 0x00000000);
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setbits_le32(regs + 0xa098, 0x03e80000);
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setbits_le32(regs + 0xa09c, 0x00280000);
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setbits_le32(regs + 0xa0a8, 0x0001e848);
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setbits_le32(regs + 0xa0ac, 0x00000019);
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/* Render/Video/Blitter Idle Max Count */
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writel(0x0000000a, regs + 0x02054);
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writel(0x0000000a, regs + 0x12054);
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writel(0x0000000a, regs + 0x22054);
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writel(0x0000000a, regs + 0x1a054);
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/* RC Sleep / RCx Thresholds */
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setbits_le32(regs + 0xa0b0, 0x00000000);
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setbits_le32(regs + 0xa0b4, 0x000003e8);
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setbits_le32(regs + 0xa0b8, 0x0000c350);
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/* RP Settings */
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setbits_le32(regs + 0xa010, 0x000f4240);
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setbits_le32(regs + 0xa014, 0x12060000);
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setbits_le32(regs + 0xa02c, 0x0000e808);
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setbits_le32(regs + 0xa030, 0x0003bd08);
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setbits_le32(regs + 0xa068, 0x000101d0);
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setbits_le32(regs + 0xa06c, 0x00055730);
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setbits_le32(regs + 0xa070, 0x0000000a);
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/* RP Control */
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writel(0x00000b92, regs + 0xa024);
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/* HW RC6 Control */
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writel(0x88040000, regs + 0xa090);
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/* Video Frequency Request */
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writel(0x08000000, regs + 0xa00c);
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/* Set RC6 VIDs */
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ret = poll32(regs + 0x138124, (1 << 31), 0);
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if (ret)
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goto err;
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writel(0, regs + 0x138128);
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writel(0x80000004, regs + 0x138124);
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ret = poll32(regs + 0x138124, (1 << 31), 0);
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if (ret)
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goto err;
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/* Enable PM Interrupts */
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writel(0x03000076, regs + 0x4402c);
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/* Enable RC6 in idle */
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writel(0x00040000, regs + 0xa094);
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return 0;
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err:
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debug("%s: ret=%d\n", __func__, ret);
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return ret;
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};
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static int haswell_late_init(struct udevice *dev)
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{
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struct broadwell_igd_priv *priv = dev_get_priv(dev);
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u8 *regs = priv->regs;
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int ret;
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/* Lock settings */
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setbits_le32(regs + 0x0a248, (1 << 31));
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setbits_le32(regs + 0x0a004, (1 << 4));
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setbits_le32(regs + 0x0a080, (1 << 2));
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setbits_le32(regs + 0x0a180, (1 << 31));
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/* Disable Force Wake */
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writel(0x00010000, regs + 0xa188);
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ret = poll32(regs + 0x130044, 1, 0);
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if (ret)
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goto err;
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writel(0x00000001, regs + 0xa188);
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/* Enable power well for DP and Audio */
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setbits_le32(regs + 0x45400, (1 << 31));
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ret = poll32(regs + 0x45400, 1 << 30, 1 << 30);
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if (ret)
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goto err;
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return 0;
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err:
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debug("%s: ret=%d\n", __func__, ret);
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return ret;
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};
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static int broadwell_early_init(struct udevice *dev)
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{
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struct broadwell_igd_priv *priv = dev_get_priv(dev);
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u8 *regs = priv->regs;
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int ret;
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/* Enable Force Wake */
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writel(0x00010001, regs + 0xa188);
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ret = poll32(regs + 0x130044, 1, 1);
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if (ret)
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goto err;
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/* Enable push bus metric control and shift */
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writel(0x00000004, regs + 0xa248);
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writel(0x000000ff, regs + 0xa250);
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writel(0x00000010, regs + 0xa25c);
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/* GFXPAUSE settings (set based on stepping) */
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/* ECO Settings */
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writel(0x45200000, regs + 0xa180);
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/* Enable DOP Clock Gating */
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writel(0x000000fd, regs + 0x9424);
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/* Enable Unit Level Clock Gating */
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writel(0x00000000, regs + 0x9400);
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writel(0x40401000, regs + 0x9404);
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writel(0x00000000, regs + 0x9408);
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writel(0x02000001, regs + 0x940c);
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writel(0x0000000a, regs + 0x1a054);
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/* Video Frequency Request */
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writel(0x08000000, regs + 0xa00c);
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writel(0x00000009, regs + 0x138158);
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writel(0x0000000d, regs + 0x13815c);
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/*
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* RC6 Settings
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*/
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/* Wake Rate Limits */
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clrsetbits_le32(regs + 0x0a090, ~0, 0);
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setbits_le32(regs + 0x0a098, 0x03e80000);
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setbits_le32(regs + 0x0a09c, 0x00280000);
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setbits_le32(regs + 0x0a0a8, 0x0001e848);
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setbits_le32(regs + 0x0a0ac, 0x00000019);
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/* Render/Video/Blitter Idle Max Count */
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writel(0x0000000a, regs + 0x02054);
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writel(0x0000000a, regs + 0x12054);
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writel(0x0000000a, regs + 0x22054);
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/* RC Sleep / RCx Thresholds */
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setbits_le32(regs + 0x0a0b0, 0x00000000);
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setbits_le32(regs + 0x0a0b8, 0x00000271);
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/* RP Settings */
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setbits_le32(regs + 0x0a010, 0x000f4240);
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setbits_le32(regs + 0x0a014, 0x12060000);
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setbits_le32(regs + 0x0a02c, 0x0000e808);
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setbits_le32(regs + 0x0a030, 0x0003bd08);
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setbits_le32(regs + 0x0a068, 0x000101d0);
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setbits_le32(regs + 0x0a06c, 0x00055730);
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setbits_le32(regs + 0x0a070, 0x0000000a);
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setbits_le32(regs + 0x0a168, 0x00000006);
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/* RP Control */
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writel(0x00000b92, regs + 0xa024);
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/* HW RC6 Control */
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writel(0x90040000, regs + 0xa090);
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/* Set RC6 VIDs */
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ret = poll32(regs + 0x138124, (1 << 31), 0);
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if (ret)
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goto err;
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writel(0, regs + 0x138128);
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writel(0x80000004, regs + 0x138124);
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ret = poll32(regs + 0x138124, (1 << 31), 0);
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if (ret)
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goto err;
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/* Enable PM Interrupts */
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writel(0x03000076, regs + 0x4402c);
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/* Enable RC6 in idle */
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writel(0x00040000, regs + 0xa094);
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return 0;
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err:
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debug("%s: ret=%d\n", __func__, ret);
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return ret;
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}
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static int broadwell_late_init(struct udevice *dev)
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{
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struct broadwell_igd_priv *priv = dev_get_priv(dev);
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u8 *regs = priv->regs;
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int ret;
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/* Lock settings */
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setbits_le32(regs + 0x0a248, 1 << 31);
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setbits_le32(regs + 0x0a000, 1 << 18);
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setbits_le32(regs + 0x0a180, 1 << 31);
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/* Disable Force Wake */
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writel(0x00010000, regs + 0xa188);
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ret = poll32(regs + 0x130044, 1, 0);
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if (ret)
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goto err;
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/* Enable power well for DP and Audio */
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setbits_le32(regs + 0x45400, 1 << 31);
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ret = poll32(regs + 0x45400, 1 << 30, 1 << 30);
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if (ret)
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goto err;
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return 0;
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err:
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debug("%s: ret=%d\n", __func__, ret);
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return ret;
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};
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static unsigned long gtt_read(struct broadwell_igd_priv *priv,
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unsigned long reg)
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{
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return readl(priv->regs + reg);
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}
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static void gtt_write(struct broadwell_igd_priv *priv, unsigned long reg,
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unsigned long data)
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{
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writel(data, priv->regs + reg);
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}
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static inline void gtt_clrsetbits(struct broadwell_igd_priv *priv, u32 reg,
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u32 bic, u32 or)
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{
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clrsetbits_le32(priv->regs + reg, bic, or);
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}
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static int gtt_poll(struct broadwell_igd_priv *priv, u32 reg, u32 mask,
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u32 value)
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{
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unsigned try = GT_RETRY;
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u32 data;
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while (try--) {
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data = gtt_read(priv, reg);
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if ((data & mask) == value)
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return 0;
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udelay(10);
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}
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debug("GT init timeout\n");
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return -ETIMEDOUT;
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}
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static void igd_setup_panel(struct udevice *dev)
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{
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struct broadwell_igd_plat *plat = dev_get_plat(dev);
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struct broadwell_igd_priv *priv = dev_get_priv(dev);
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u32 reg32;
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/* Setup Digital Port Hotplug */
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reg32 = (plat->dp_hotplug[0] & 0x7) << 2;
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reg32 |= (plat->dp_hotplug[1] & 0x7) << 10;
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reg32 |= (plat->dp_hotplug[2] & 0x7) << 18;
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gtt_write(priv, PCH_PORT_HOTPLUG, reg32);
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/* Setup Panel Power On Delays */
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reg32 = (plat->port_select & 0x3) << 30;
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reg32 |= (plat->power_up_delay & 0x1fff) << 16;
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reg32 |= (plat->power_backlight_on_delay & 0x1fff);
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gtt_write(priv, PCH_PP_ON_DELAYS, reg32);
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/* Setup Panel Power Off Delays */
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reg32 = (plat->power_down_delay & 0x1fff) << 16;
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reg32 |= (plat->power_backlight_off_delay & 0x1fff);
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gtt_write(priv, PCH_PP_OFF_DELAYS, reg32);
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/* Setup Panel Power Cycle Delay */
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if (plat->power_cycle_delay) {
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reg32 = gtt_read(priv, PCH_PP_DIVISOR);
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reg32 &= ~0xff;
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reg32 |= plat->power_cycle_delay & 0xff;
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gtt_write(priv, PCH_PP_DIVISOR, reg32);
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}
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/* Enable Backlight if needed */
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if (plat->cpu_backlight) {
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gtt_write(priv, BLC_PWM_CPU_CTL2, BLC_PWM2_ENABLE);
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gtt_write(priv, BLC_PWM_CPU_CTL, plat->cpu_backlight);
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}
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if (plat->pch_backlight) {
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gtt_write(priv, BLC_PWM_PCH_CTL1, BLM_PCH_PWM_ENABLE);
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gtt_write(priv, BLC_PWM_PCH_CTL2, plat->pch_backlight);
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}
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}
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static int igd_cdclk_init_haswell(struct udevice *dev)
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{
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struct broadwell_igd_plat *plat = dev_get_plat(dev);
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struct broadwell_igd_priv *priv = dev_get_priv(dev);
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int cdclk = plat->cdclk;
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u16 devid;
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int gpu_is_ulx = 0;
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u32 dpdiv, lpcll;
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int ret;
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dm_pci_read_config16(dev, PCI_DEVICE_ID, &devid);
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/* Check for ULX GT1 or GT2 */
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if (devid == 0x0a0e || devid == 0x0a1e)
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gpu_is_ulx = 1;
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/* 675MHz is not supported on haswell */
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if (cdclk == GT_CDCLK_675)
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cdclk = GT_CDCLK_337;
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/* If CD clock is fixed or ULT then set to 450MHz */
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if ((gtt_read(priv, 0x42014) & 0x1000000) || cpu_is_ult())
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cdclk = GT_CDCLK_450;
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/* 540MHz is not supported on ULX */
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if (gpu_is_ulx && cdclk == GT_CDCLK_540)
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cdclk = GT_CDCLK_337;
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/* 337.5MHz is not supported on non-ULT/ULX */
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if (!gpu_is_ulx && !cpu_is_ult() && cdclk == GT_CDCLK_337)
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cdclk = GT_CDCLK_450;
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/* Set variables based on CD Clock setting */
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switch (cdclk) {
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case GT_CDCLK_337:
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dpdiv = 169;
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lpcll = (1 << 26);
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break;
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case GT_CDCLK_450:
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dpdiv = 225;
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lpcll = 0;
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break;
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case GT_CDCLK_540:
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dpdiv = 270;
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lpcll = (1 << 26);
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break;
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default:
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ret = -EDOM;
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goto err;
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}
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/* Set LPCLL_CTL CD Clock Frequency Select */
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gtt_clrsetbits(priv, 0x130040, ~0xf3ffffff, lpcll);
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/* ULX: Inform power controller of selected frequency */
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if (gpu_is_ulx) {
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if (cdclk == GT_CDCLK_450)
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gtt_write(priv, 0x138128, 0x00000000); /* 450MHz */
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else
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gtt_write(priv, 0x138128, 0x00000001); /* 337.5MHz */
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gtt_write(priv, 0x13812c, 0x00000000);
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gtt_write(priv, 0x138124, 0x80000017);
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}
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/* Set CPU DP AUX 2X bit clock dividers */
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gtt_clrsetbits(priv, 0x64010, ~0xfffff800, dpdiv);
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gtt_clrsetbits(priv, 0x64810, ~0xfffff800, dpdiv);
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return 0;
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err:
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debug("%s: ret=%d\n", __func__, ret);
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return ret;
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}
|
|
|
|
static int igd_cdclk_init_broadwell(struct udevice *dev)
|
|
{
|
|
struct broadwell_igd_plat *plat = dev_get_plat(dev);
|
|
struct broadwell_igd_priv *priv = dev_get_priv(dev);
|
|
int cdclk = plat->cdclk;
|
|
u32 dpdiv, lpcll, pwctl, cdset;
|
|
int ret;
|
|
|
|
/* Inform power controller of upcoming frequency change */
|
|
gtt_write(priv, 0x138128, 0);
|
|
gtt_write(priv, 0x13812c, 0);
|
|
gtt_write(priv, 0x138124, 0x80000018);
|
|
|
|
/* Poll GT driver mailbox for run/busy clear */
|
|
if (gtt_poll(priv, 0x138124, 1 << 31, 0 << 31))
|
|
cdclk = GT_CDCLK_450;
|
|
|
|
if (gtt_read(priv, 0x42014) & 0x1000000) {
|
|
/* If CD clock is fixed then set to 450MHz */
|
|
cdclk = GT_CDCLK_450;
|
|
} else {
|
|
/* Program CD clock to highest supported freq */
|
|
if (cpu_is_ult())
|
|
cdclk = GT_CDCLK_540;
|
|
else
|
|
cdclk = GT_CDCLK_675;
|
|
}
|
|
|
|
/* CD clock frequency 675MHz not supported on ULT */
|
|
if (cpu_is_ult() && cdclk == GT_CDCLK_675)
|
|
cdclk = GT_CDCLK_540;
|
|
|
|
/* Set variables based on CD Clock setting */
|
|
switch (cdclk) {
|
|
case GT_CDCLK_337:
|
|
cdset = 337;
|
|
lpcll = (1 << 27);
|
|
pwctl = 2;
|
|
dpdiv = 169;
|
|
break;
|
|
case GT_CDCLK_450:
|
|
cdset = 449;
|
|
lpcll = 0;
|
|
pwctl = 0;
|
|
dpdiv = 225;
|
|
break;
|
|
case GT_CDCLK_540:
|
|
cdset = 539;
|
|
lpcll = (1 << 26);
|
|
pwctl = 1;
|
|
dpdiv = 270;
|
|
break;
|
|
case GT_CDCLK_675:
|
|
cdset = 674;
|
|
lpcll = (1 << 26) | (1 << 27);
|
|
pwctl = 3;
|
|
dpdiv = 338;
|
|
break;
|
|
default:
|
|
ret = -EDOM;
|
|
goto err;
|
|
}
|
|
debug("%s: frequency = %d\n", __func__, cdclk);
|
|
|
|
/* Set LPCLL_CTL CD Clock Frequency Select */
|
|
gtt_clrsetbits(priv, 0x130040, ~0xf3ffffff, lpcll);
|
|
|
|
/* Inform power controller of selected frequency */
|
|
gtt_write(priv, 0x138128, pwctl);
|
|
gtt_write(priv, 0x13812c, 0);
|
|
gtt_write(priv, 0x138124, 0x80000017);
|
|
|
|
/* Program CD Clock Frequency */
|
|
gtt_clrsetbits(priv, 0x46200, ~0xfffffc00, cdset);
|
|
|
|
/* Set CPU DP AUX 2X bit clock dividers */
|
|
gtt_clrsetbits(priv, 0x64010, ~0xfffff800, dpdiv);
|
|
gtt_clrsetbits(priv, 0x64810, ~0xfffff800, dpdiv);
|
|
|
|
return 0;
|
|
err:
|
|
debug("%s: ret=%d\n", __func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
u8 systemagent_revision(struct udevice *bus)
|
|
{
|
|
ulong val;
|
|
|
|
pci_bus_read_config(bus, PCI_BDF(0, 0, 0), PCI_REVISION_ID, &val,
|
|
PCI_SIZE_32);
|
|
|
|
return val;
|
|
}
|
|
|
|
static int igd_pre_init(struct udevice *dev, bool is_broadwell)
|
|
{
|
|
struct broadwell_igd_plat *plat = dev_get_plat(dev);
|
|
struct broadwell_igd_priv *priv = dev_get_priv(dev);
|
|
u32 rp1_gfx_freq;
|
|
int ret;
|
|
|
|
mdelay(plat->pre_graphics_delay);
|
|
|
|
/* Early init steps */
|
|
if (is_broadwell) {
|
|
ret = broadwell_early_init(dev);
|
|
if (ret)
|
|
goto err;
|
|
|
|
/* Set GFXPAUSE based on stepping */
|
|
if (cpu_get_stepping() <= (CPUID_BROADWELL_E0 & 0xf) &&
|
|
systemagent_revision(pci_get_controller(dev)) <= 9) {
|
|
gtt_write(priv, 0xa000, 0x300ff);
|
|
} else {
|
|
gtt_write(priv, 0xa000, 0x30020);
|
|
}
|
|
} else {
|
|
ret = haswell_early_init(dev);
|
|
if (ret)
|
|
goto err;
|
|
}
|
|
|
|
/* Set RP1 graphics frequency */
|
|
rp1_gfx_freq = (readl(MCHBAR_REG(0x5998)) >> 8) & 0xff;
|
|
gtt_write(priv, 0xa008, rp1_gfx_freq << 24);
|
|
|
|
/* Post VBIOS panel setup */
|
|
igd_setup_panel(dev);
|
|
|
|
return 0;
|
|
err:
|
|
debug("%s: ret=%d\n", __func__, ret);
|
|
return ret;
|
|
}
|
|
|
|
static int igd_post_init(struct udevice *dev, bool is_broadwell)
|
|
{
|
|
int ret;
|
|
|
|
/* Late init steps */
|
|
if (is_broadwell) {
|
|
ret = igd_cdclk_init_broadwell(dev);
|
|
if (ret)
|
|
return ret;
|
|
ret = broadwell_late_init(dev);
|
|
if (ret)
|
|
return ret;
|
|
} else {
|
|
igd_cdclk_init_haswell(dev);
|
|
ret = haswell_late_init(dev);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int broadwell_igd_int15_handler(void)
|
|
{
|
|
int res = 0;
|
|
|
|
debug("%s: INT15 function %04x!\n", __func__, M.x86.R_AX);
|
|
|
|
switch (M.x86.R_AX) {
|
|
case 0x5f35:
|
|
/*
|
|
* Boot Display Device Hook:
|
|
* bit 0 = CRT
|
|
* bit 1 = TV (eDP)
|
|
* bit 2 = EFP
|
|
* bit 3 = LFP
|
|
* bit 4 = CRT2
|
|
* bit 5 = TV2 (eDP)
|
|
* bit 6 = EFP2
|
|
* bit 7 = LFP2
|
|
*/
|
|
M.x86.R_AX = 0x005f;
|
|
M.x86.R_CX = 0x0000; /* Use video bios default */
|
|
res = 1;
|
|
break;
|
|
default:
|
|
debug("Unknown INT15 function %04x!\n", M.x86.R_AX);
|
|
break;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static int broadwell_igd_probe(struct udevice *dev)
|
|
{
|
|
struct video_uc_plat *plat = dev_get_uclass_plat(dev);
|
|
struct video_priv *uc_priv = dev_get_uclass_priv(dev);
|
|
bool is_broadwell;
|
|
ulong fbbase;
|
|
int ret;
|
|
|
|
if (!ll_boot_init()) {
|
|
/*
|
|
* If we are running from EFI or coreboot, this driver can't
|
|
* work.
|
|
*/
|
|
printf("Not available (previous bootloader prevents it)\n");
|
|
return -EPERM;
|
|
}
|
|
is_broadwell = cpu_get_family_model() == BROADWELL_FAMILY_ULT;
|
|
bootstage_start(BOOTSTAGE_ID_ACCUM_LCD, "vesa display");
|
|
debug("%s: is_broadwell=%d\n", __func__, is_broadwell);
|
|
ret = igd_pre_init(dev, is_broadwell);
|
|
if (!ret) {
|
|
ret = vesa_setup_video(dev, broadwell_igd_int15_handler);
|
|
if (ret)
|
|
debug("failed to run video BIOS: %d\n", ret);
|
|
}
|
|
if (!ret)
|
|
ret = igd_post_init(dev, is_broadwell);
|
|
bootstage_accum(BOOTSTAGE_ID_ACCUM_LCD);
|
|
if (ret)
|
|
return ret;
|
|
|
|
/* Use write-combining for the graphics memory, 256MB */
|
|
fbbase = IS_ENABLED(CONFIG_VIDEO_COPY) ? plat->copy_base : plat->base;
|
|
ret = mtrr_set_next_var(MTRR_TYPE_WRCOMB, fbbase, 256 << 20);
|
|
if (ret)
|
|
printf("Failed to add MTRR: Display will be slow (err %d)\n", ret);
|
|
|
|
debug("fb=%lx, size %x, display size=%d %d %d\n", plat->base,
|
|
plat->size, uc_priv->xsize, uc_priv->ysize, uc_priv->bpix);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int broadwell_igd_of_to_plat(struct udevice *dev)
|
|
{
|
|
struct broadwell_igd_plat *plat = dev_get_plat(dev);
|
|
struct broadwell_igd_priv *priv = dev_get_priv(dev);
|
|
int node = dev_of_offset(dev);
|
|
const void *blob = gd->fdt_blob;
|
|
|
|
if (fdtdec_get_int_array(blob, node, "intel,dp-hotplug",
|
|
plat->dp_hotplug,
|
|
ARRAY_SIZE(plat->dp_hotplug)))
|
|
return -EINVAL;
|
|
plat->port_select = fdtdec_get_int(blob, node, "intel,port-select", 0);
|
|
plat->power_cycle_delay = fdtdec_get_int(blob, node,
|
|
"intel,power-cycle-delay", 0);
|
|
plat->power_up_delay = fdtdec_get_int(blob, node,
|
|
"intel,power-up-delay", 0);
|
|
plat->power_down_delay = fdtdec_get_int(blob, node,
|
|
"intel,power-down-delay", 0);
|
|
plat->power_backlight_on_delay = fdtdec_get_int(blob, node,
|
|
"intel,power-backlight-on-delay", 0);
|
|
plat->power_backlight_off_delay = fdtdec_get_int(blob, node,
|
|
"intel,power-backlight-off-delay", 0);
|
|
plat->cpu_backlight = fdtdec_get_int(blob, node,
|
|
"intel,cpu-backlight", 0);
|
|
plat->pch_backlight = fdtdec_get_int(blob, node,
|
|
"intel,pch-backlight", 0);
|
|
plat->pre_graphics_delay = fdtdec_get_int(blob, node,
|
|
"intel,pre-graphics-delay", 0);
|
|
priv->regs = (u8 *)dm_pci_read_bar32(dev, 0);
|
|
debug("%s: regs at %p\n", __func__, priv->regs);
|
|
debug("dp_hotplug %d %d %d\n", plat->dp_hotplug[0], plat->dp_hotplug[1],
|
|
plat->dp_hotplug[2]);
|
|
debug("port_select = %d\n", plat->port_select);
|
|
debug("power_up_delay = %d\n", plat->power_up_delay);
|
|
debug("power_backlight_on_delay = %d\n",
|
|
plat->power_backlight_on_delay);
|
|
debug("power_down_delay = %d\n", plat->power_down_delay);
|
|
debug("power_backlight_off_delay = %d\n",
|
|
plat->power_backlight_off_delay);
|
|
debug("power_cycle_delay = %d\n", plat->power_cycle_delay);
|
|
debug("cpu_backlight = %x\n", plat->cpu_backlight);
|
|
debug("pch_backlight = %x\n", plat->pch_backlight);
|
|
debug("cdclk = %d\n", plat->cdclk);
|
|
debug("pre_graphics_delay = %d\n", plat->pre_graphics_delay);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int broadwell_igd_bind(struct udevice *dev)
|
|
{
|
|
struct video_uc_plat *uc_plat = dev_get_uclass_plat(dev);
|
|
|
|
/* Set the maximum supported resolution */
|
|
uc_plat->size = 2560 * 1600 * 4;
|
|
log_debug("%s: Frame buffer size %x\n", __func__, uc_plat->size);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct video_ops broadwell_igd_ops = {
|
|
};
|
|
|
|
static const struct udevice_id broadwell_igd_ids[] = {
|
|
{ .compatible = "intel,broadwell-igd" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(broadwell_igd) = {
|
|
.name = "broadwell_igd",
|
|
.id = UCLASS_VIDEO,
|
|
.of_match = broadwell_igd_ids,
|
|
.ops = &broadwell_igd_ops,
|
|
.of_to_plat = broadwell_igd_of_to_plat,
|
|
.bind = broadwell_igd_bind,
|
|
.probe = broadwell_igd_probe,
|
|
.priv_auto = sizeof(struct broadwell_igd_priv),
|
|
.plat_auto = sizeof(struct broadwell_igd_plat),
|
|
};
|