+++ /dev/null
-/*
- * From Coreboot file of the same name
- *
- * Copyright (C) 2011 Chromium OS Authors
- *
- * SPDX-License-Identifier: GPL-2.0
- */
-
-#include <common.h>
-#include <bios_emul.h>
-#include <dm.h>
-#include <errno.h>
-#include <fdtdec.h>
-#include <pci_rom.h>
-#include <asm/intel_regs.h>
-#include <asm/io.h>
-#include <asm/mtrr.h>
-#include <asm/pci.h>
-#include <asm/arch/pch.h>
-#include <asm/arch/sandybridge.h>
-
-struct gt_powermeter {
- u16 reg;
- u32 value;
-};
-
-static const struct gt_powermeter snb_pm_gt1[] = {
- { 0xa200, 0xcc000000 },
- { 0xa204, 0x07000040 },
- { 0xa208, 0x0000fe00 },
- { 0xa20c, 0x00000000 },
- { 0xa210, 0x17000000 },
- { 0xa214, 0x00000021 },
- { 0xa218, 0x0817fe19 },
- { 0xa21c, 0x00000000 },
- { 0xa220, 0x00000000 },
- { 0xa224, 0xcc000000 },
- { 0xa228, 0x07000040 },
- { 0xa22c, 0x0000fe00 },
- { 0xa230, 0x00000000 },
- { 0xa234, 0x17000000 },
- { 0xa238, 0x00000021 },
- { 0xa23c, 0x0817fe19 },
- { 0xa240, 0x00000000 },
- { 0xa244, 0x00000000 },
- { 0xa248, 0x8000421e },
- { 0 }
-};
-
-static const struct gt_powermeter snb_pm_gt2[] = {
- { 0xa200, 0x330000a6 },
- { 0xa204, 0x402d0031 },
- { 0xa208, 0x00165f83 },
- { 0xa20c, 0xf1000000 },
- { 0xa210, 0x00000000 },
- { 0xa214, 0x00160016 },
- { 0xa218, 0x002a002b },
- { 0xa21c, 0x00000000 },
- { 0xa220, 0x00000000 },
- { 0xa224, 0x330000a6 },
- { 0xa228, 0x402d0031 },
- { 0xa22c, 0x00165f83 },
- { 0xa230, 0xf1000000 },
- { 0xa234, 0x00000000 },
- { 0xa238, 0x00160016 },
- { 0xa23c, 0x002a002b },
- { 0xa240, 0x00000000 },
- { 0xa244, 0x00000000 },
- { 0xa248, 0x8000421e },
- { 0 }
-};
-
-static const struct gt_powermeter ivb_pm_gt1[] = {
- { 0xa800, 0x00000000 },
- { 0xa804, 0x00021c00 },
- { 0xa808, 0x00000403 },
- { 0xa80c, 0x02001700 },
- { 0xa810, 0x05000200 },
- { 0xa814, 0x00000000 },
- { 0xa818, 0x00690500 },
- { 0xa81c, 0x0000007f },
- { 0xa820, 0x01002501 },
- { 0xa824, 0x00000300 },
- { 0xa828, 0x01000331 },
- { 0xa82c, 0x0000000c },
- { 0xa830, 0x00010016 },
- { 0xa834, 0x01100101 },
- { 0xa838, 0x00010103 },
- { 0xa83c, 0x00041300 },
- { 0xa840, 0x00000b30 },
- { 0xa844, 0x00000000 },
- { 0xa848, 0x7f000000 },
- { 0xa84c, 0x05000008 },
- { 0xa850, 0x00000001 },
- { 0xa854, 0x00000004 },
- { 0xa858, 0x00000007 },
- { 0xa85c, 0x00000000 },
- { 0xa860, 0x00010000 },
- { 0xa248, 0x0000221e },
- { 0xa900, 0x00000000 },
- { 0xa904, 0x00001c00 },
- { 0xa908, 0x00000000 },
- { 0xa90c, 0x06000000 },
- { 0xa910, 0x09000200 },
- { 0xa914, 0x00000000 },
- { 0xa918, 0x00590000 },
- { 0xa91c, 0x00000000 },
- { 0xa920, 0x04002501 },
- { 0xa924, 0x00000100 },
- { 0xa928, 0x03000410 },
- { 0xa92c, 0x00000000 },
- { 0xa930, 0x00020000 },
- { 0xa934, 0x02070106 },
- { 0xa938, 0x00010100 },
- { 0xa93c, 0x00401c00 },
- { 0xa940, 0x00000000 },
- { 0xa944, 0x00000000 },
- { 0xa948, 0x10000e00 },
- { 0xa94c, 0x02000004 },
- { 0xa950, 0x00000001 },
- { 0xa954, 0x00000004 },
- { 0xa960, 0x00060000 },
- { 0xaa3c, 0x00001c00 },
- { 0xaa54, 0x00000004 },
- { 0xaa60, 0x00060000 },
- { 0 }
-};
-
-static const struct gt_powermeter ivb_pm_gt2[] = {
- { 0xa800, 0x10000000 },
- { 0xa804, 0x00033800 },
- { 0xa808, 0x00000902 },
- { 0xa80c, 0x0c002f00 },
- { 0xa810, 0x12000400 },
- { 0xa814, 0x00000000 },
- { 0xa818, 0x00d20800 },
- { 0xa81c, 0x00000002 },
- { 0xa820, 0x03004b02 },
- { 0xa824, 0x00000600 },
- { 0xa828, 0x07000773 },
- { 0xa82c, 0x00000000 },
- { 0xa830, 0x00010032 },
- { 0xa834, 0x1520040d },
- { 0xa838, 0x00020105 },
- { 0xa83c, 0x00083700 },
- { 0xa840, 0x0000151d },
- { 0xa844, 0x00000000 },
- { 0xa848, 0x20001b00 },
- { 0xa84c, 0x0a000010 },
- { 0xa850, 0x00000000 },
- { 0xa854, 0x00000008 },
- { 0xa858, 0x00000008 },
- { 0xa85c, 0x00000000 },
- { 0xa860, 0x00020000 },
- { 0xa248, 0x0000221e },
- { 0xa900, 0x00000000 },
- { 0xa904, 0x00003500 },
- { 0xa908, 0x00000000 },
- { 0xa90c, 0x0c000000 },
- { 0xa910, 0x12000500 },
- { 0xa914, 0x00000000 },
- { 0xa918, 0x00b20000 },
- { 0xa91c, 0x00000000 },
- { 0xa920, 0x08004b02 },
- { 0xa924, 0x00000200 },
- { 0xa928, 0x07000820 },
- { 0xa92c, 0x00000000 },
- { 0xa930, 0x00030000 },
- { 0xa934, 0x050f020d },
- { 0xa938, 0x00020300 },
- { 0xa93c, 0x00903900 },
- { 0xa940, 0x00000000 },
- { 0xa944, 0x00000000 },
- { 0xa948, 0x20001b00 },
- { 0xa94c, 0x0a000010 },
- { 0xa950, 0x00000000 },
- { 0xa954, 0x00000008 },
- { 0xa960, 0x00110000 },
- { 0xaa3c, 0x00003900 },
- { 0xaa54, 0x00000008 },
- { 0xaa60, 0x00110000 },
- { 0 }
-};
-
-static const struct gt_powermeter ivb_pm_gt2_17w[] = {
- { 0xa800, 0x20000000 },
- { 0xa804, 0x000e3800 },
- { 0xa808, 0x00000806 },
- { 0xa80c, 0x0c002f00 },
- { 0xa810, 0x0c000800 },
- { 0xa814, 0x00000000 },
- { 0xa818, 0x00d20d00 },
- { 0xa81c, 0x000000ff },
- { 0xa820, 0x03004b02 },
- { 0xa824, 0x00000600 },
- { 0xa828, 0x07000773 },
- { 0xa82c, 0x00000000 },
- { 0xa830, 0x00020032 },
- { 0xa834, 0x1520040d },
- { 0xa838, 0x00020105 },
- { 0xa83c, 0x00083700 },
- { 0xa840, 0x000016ff },
- { 0xa844, 0x00000000 },
- { 0xa848, 0xff000000 },
- { 0xa84c, 0x0a000010 },
- { 0xa850, 0x00000002 },
- { 0xa854, 0x00000008 },
- { 0xa858, 0x0000000f },
- { 0xa85c, 0x00000000 },
- { 0xa860, 0x00020000 },
- { 0xa248, 0x0000221e },
- { 0xa900, 0x00000000 },
- { 0xa904, 0x00003800 },
- { 0xa908, 0x00000000 },
- { 0xa90c, 0x0c000000 },
- { 0xa910, 0x12000800 },
- { 0xa914, 0x00000000 },
- { 0xa918, 0x00b20000 },
- { 0xa91c, 0x00000000 },
- { 0xa920, 0x08004b02 },
- { 0xa924, 0x00000300 },
- { 0xa928, 0x01000820 },
- { 0xa92c, 0x00000000 },
- { 0xa930, 0x00030000 },
- { 0xa934, 0x15150406 },
- { 0xa938, 0x00020300 },
- { 0xa93c, 0x00903900 },
- { 0xa940, 0x00000000 },
- { 0xa944, 0x00000000 },
- { 0xa948, 0x20001b00 },
- { 0xa94c, 0x0a000010 },
- { 0xa950, 0x00000000 },
- { 0xa954, 0x00000008 },
- { 0xa960, 0x00110000 },
- { 0xaa3c, 0x00003900 },
- { 0xaa54, 0x00000008 },
- { 0xaa60, 0x00110000 },
- { 0 }
-};
-
-static const struct gt_powermeter ivb_pm_gt2_35w[] = {
- { 0xa800, 0x00000000 },
- { 0xa804, 0x00030400 },
- { 0xa808, 0x00000806 },
- { 0xa80c, 0x0c002f00 },
- { 0xa810, 0x0c000300 },
- { 0xa814, 0x00000000 },
- { 0xa818, 0x00d20d00 },
- { 0xa81c, 0x000000ff },
- { 0xa820, 0x03004b02 },
- { 0xa824, 0x00000600 },
- { 0xa828, 0x07000773 },
- { 0xa82c, 0x00000000 },
- { 0xa830, 0x00020032 },
- { 0xa834, 0x1520040d },
- { 0xa838, 0x00020105 },
- { 0xa83c, 0x00083700 },
- { 0xa840, 0x000016ff },
- { 0xa844, 0x00000000 },
- { 0xa848, 0xff000000 },
- { 0xa84c, 0x0a000010 },
- { 0xa850, 0x00000001 },
- { 0xa854, 0x00000008 },
- { 0xa858, 0x00000008 },
- { 0xa85c, 0x00000000 },
- { 0xa860, 0x00020000 },
- { 0xa248, 0x0000221e },
- { 0xa900, 0x00000000 },
- { 0xa904, 0x00003800 },
- { 0xa908, 0x00000000 },
- { 0xa90c, 0x0c000000 },
- { 0xa910, 0x12000800 },
- { 0xa914, 0x00000000 },
- { 0xa918, 0x00b20000 },
- { 0xa91c, 0x00000000 },
- { 0xa920, 0x08004b02 },
- { 0xa924, 0x00000300 },
- { 0xa928, 0x01000820 },
- { 0xa92c, 0x00000000 },
- { 0xa930, 0x00030000 },
- { 0xa934, 0x15150406 },
- { 0xa938, 0x00020300 },
- { 0xa93c, 0x00903900 },
- { 0xa940, 0x00000000 },
- { 0xa944, 0x00000000 },
- { 0xa948, 0x20001b00 },
- { 0xa94c, 0x0a000010 },
- { 0xa950, 0x00000000 },
- { 0xa954, 0x00000008 },
- { 0xa960, 0x00110000 },
- { 0xaa3c, 0x00003900 },
- { 0xaa54, 0x00000008 },
- { 0xaa60, 0x00110000 },
- { 0 }
-};
-
-/*
- * Some vga option roms are used for several chipsets but they only have one
- * PCI ID in their header. If we encounter such an option rom, we need to do
- * the mapping ourselves.
- */
-
-u32 map_oprom_vendev(u32 vendev)
-{
- u32 new_vendev = vendev;
-
- switch (vendev) {
- case 0x80860102: /* GT1 Desktop */
- case 0x8086010a: /* GT1 Server */
- case 0x80860112: /* GT2 Desktop */
- case 0x80860116: /* GT2 Mobile */
- case 0x80860122: /* GT2 Desktop >=1.3GHz */
- case 0x80860126: /* GT2 Mobile >=1.3GHz */
- case 0x80860156: /* IVB */
- case 0x80860166: /* IVB */
- /* Set to GT1 Mobile */
- new_vendev = 0x80860106;
- break;
- }
-
- return new_vendev;
-}
-
-static inline u32 gtt_read(void *bar, u32 reg)
-{
- return readl(bar + reg);
-}
-
-static inline void gtt_write(void *bar, u32 reg, u32 data)
-{
- writel(data, bar + reg);
-}
-
-static void gtt_write_powermeter(void *bar, const struct gt_powermeter *pm)
-{
- for (; pm && pm->reg; pm++)
- gtt_write(bar, pm->reg, pm->value);
-}
-
-#define GTT_RETRY 1000
-static int gtt_poll(void *bar, u32 reg, u32 mask, u32 value)
-{
- unsigned try = GTT_RETRY;
- u32 data;
-
- while (try--) {
- data = gtt_read(bar, reg);
- if ((data & mask) == value)
- return 1;
- udelay(10);
- }
-
- printf("GT init timeout\n");
- return 0;
-}
-
-static int gma_pm_init_pre_vbios(void *gtt_bar, int rev)
-{
- u32 reg32;
-
- debug("GT Power Management Init, silicon = %#x\n", rev);
-
- if (rev < IVB_STEP_C0) {
- /* 1: Enable force wake */
- gtt_write(gtt_bar, 0xa18c, 0x00000001);
- gtt_poll(gtt_bar, 0x130090, (1 << 0), (1 << 0));
- } else {
- gtt_write(gtt_bar, 0xa180, 1 << 5);
- gtt_write(gtt_bar, 0xa188, 0xffff0001);
- gtt_poll(gtt_bar, 0x130040, (1 << 0), (1 << 0));
- }
-
- if ((rev & BASE_REV_MASK) == BASE_REV_SNB) {
- /* 1d: Set GTT+0x42004 [15:14]=11 (SnB C1+) */
- reg32 = gtt_read(gtt_bar, 0x42004);
- reg32 |= (1 << 14) | (1 << 15);
- gtt_write(gtt_bar, 0x42004, reg32);
- }
-
- if (rev >= IVB_STEP_A0) {
- /* Display Reset Acknowledge Settings */
- reg32 = gtt_read(gtt_bar, 0x45010);
- reg32 |= (1 << 1) | (1 << 0);
- gtt_write(gtt_bar, 0x45010, reg32);
- }
-
- /* 2: Get GT SKU from GTT+0x911c[13] */
- reg32 = gtt_read(gtt_bar, 0x911c);
- if ((rev & BASE_REV_MASK) == BASE_REV_SNB) {
- if (reg32 & (1 << 13)) {
- debug("SNB GT1 Power Meter Weights\n");
- gtt_write_powermeter(gtt_bar, snb_pm_gt1);
- } else {
- debug("SNB GT2 Power Meter Weights\n");
- gtt_write_powermeter(gtt_bar, snb_pm_gt2);
- }
- } else {
- u32 unit = readl(MCHBAR_REG(0x5938)) & 0xf;
-
- if (reg32 & (1 << 13)) {
- /* GT1 SKU */
- debug("IVB GT1 Power Meter Weights\n");
- gtt_write_powermeter(gtt_bar, ivb_pm_gt1);
- } else {
- /* GT2 SKU */
- u32 tdp = readl(MCHBAR_REG(0x5930)) & 0x7fff;
- tdp /= (1 << unit);
-
- if (tdp <= 17) {
- /* <=17W ULV */
- debug("IVB GT2 17W Power Meter Weights\n");
- gtt_write_powermeter(gtt_bar, ivb_pm_gt2_17w);
- } else if ((tdp >= 25) && (tdp <= 35)) {
- /* 25W-35W */
- debug("IVB GT2 25W-35W Power Meter Weights\n");
- gtt_write_powermeter(gtt_bar, ivb_pm_gt2_35w);
- } else {
- /* All others */
- debug("IVB GT2 35W Power Meter Weights\n");
- gtt_write_powermeter(gtt_bar, ivb_pm_gt2_35w);
- }
- }
- }
-
- /* 3: Gear ratio map */
- gtt_write(gtt_bar, 0xa004, 0x00000010);
-
- /* 4: GFXPAUSE */
- gtt_write(gtt_bar, 0xa000, 0x00070020);
-
- /* 5: Dynamic EU trip control */
- gtt_write(gtt_bar, 0xa080, 0x00000004);
-
- /* 6: ECO bits */
- reg32 = gtt_read(gtt_bar, 0xa180);
- reg32 |= (1 << 26) | (1 << 31);
- /* (bit 20=1 for SNB step D1+ / IVB A0+) */
- if (rev >= SNB_STEP_D1)
- reg32 |= (1 << 20);
- gtt_write(gtt_bar, 0xa180, reg32);
-
- /* 6a: for SnB step D2+ only */
- if (((rev & BASE_REV_MASK) == BASE_REV_SNB) &&
- (rev >= SNB_STEP_D2)) {
- reg32 = gtt_read(gtt_bar, 0x9400);
- reg32 |= (1 << 7);
- gtt_write(gtt_bar, 0x9400, reg32);
-
- reg32 = gtt_read(gtt_bar, 0x941c);
- reg32 &= 0xf;
- reg32 |= (1 << 1);
- gtt_write(gtt_bar, 0x941c, reg32);
- gtt_poll(gtt_bar, 0x941c, (1 << 1), (0 << 1));
- }
-
- if ((rev & BASE_REV_MASK) == BASE_REV_IVB) {
- reg32 = gtt_read(gtt_bar, 0x907c);
- reg32 |= (1 << 16);
- gtt_write(gtt_bar, 0x907c, reg32);
-
- /* 6b: Clocking reset controls */
- gtt_write(gtt_bar, 0x9424, 0x00000001);
- } else {
- /* 6b: Clocking reset controls */
- gtt_write(gtt_bar, 0x9424, 0x00000000);
- }
-
- /* 7 */
- if (gtt_poll(gtt_bar, 0x138124, (1 << 31), (0 << 31))) {
- gtt_write(gtt_bar, 0x138128, 0x00000029); /* Mailbox Data */
- /* Mailbox Cmd for RC6 VID */
- gtt_write(gtt_bar, 0x138124, 0x80000004);
- if (gtt_poll(gtt_bar, 0x138124, (1 << 31), (0 << 31)))
- gtt_write(gtt_bar, 0x138124, 0x8000000a);
- gtt_poll(gtt_bar, 0x138124, (1 << 31), (0 << 31));
- }
-
- /* 8 */
- gtt_write(gtt_bar, 0xa090, 0x00000000); /* RC Control */
- gtt_write(gtt_bar, 0xa098, 0x03e80000); /* RC1e Wake Rate Limit */
- gtt_write(gtt_bar, 0xa09c, 0x0028001e); /* RC6/6p Wake Rate Limit */
- gtt_write(gtt_bar, 0xa0a0, 0x0000001e); /* RC6pp Wake Rate Limit */
- gtt_write(gtt_bar, 0xa0a8, 0x0001e848); /* RC Evaluation Interval */
- gtt_write(gtt_bar, 0xa0ac, 0x00000019); /* RC Idle Hysteresis */
-
- /* 9 */
- gtt_write(gtt_bar, 0x2054, 0x0000000a); /* Render Idle Max Count */
- gtt_write(gtt_bar, 0x12054, 0x0000000a); /* Video Idle Max Count */
- gtt_write(gtt_bar, 0x22054, 0x0000000a); /* Blitter Idle Max Count */
-
- /* 10 */
- gtt_write(gtt_bar, 0xa0b0, 0x00000000); /* Unblock Ack to Busy */
- gtt_write(gtt_bar, 0xa0b4, 0x000003e8); /* RC1e Threshold */
- gtt_write(gtt_bar, 0xa0b8, 0x0000c350); /* RC6 Threshold */
- gtt_write(gtt_bar, 0xa0bc, 0x000186a0); /* RC6p Threshold */
- gtt_write(gtt_bar, 0xa0c0, 0x0000fa00); /* RC6pp Threshold */
-
- /* 11 */
- gtt_write(gtt_bar, 0xa010, 0x000f4240); /* RP Down Timeout */
- gtt_write(gtt_bar, 0xa014, 0x12060000); /* RP Interrupt Limits */
- gtt_write(gtt_bar, 0xa02c, 0x00015f90); /* RP Up Threshold */
- gtt_write(gtt_bar, 0xa030, 0x000186a0); /* RP Down Threshold */
- gtt_write(gtt_bar, 0xa068, 0x000186a0); /* RP Up EI */
- gtt_write(gtt_bar, 0xa06c, 0x000493e0); /* RP Down EI */
- gtt_write(gtt_bar, 0xa070, 0x0000000a); /* RP Idle Hysteresis */
-
- /* 11a: Enable Render Standby (RC6) */
- if ((rev & BASE_REV_MASK) == BASE_REV_IVB) {
- /*
- * IvyBridge should also support DeepRenderStandby.
- *
- * Unfortunately it does not work reliably on all SKUs so
- * disable it here and it can be enabled by the kernel.
- */
- gtt_write(gtt_bar, 0xa090, 0x88040000); /* HW RC Control */
- } else {
- gtt_write(gtt_bar, 0xa090, 0x88040000); /* HW RC Control */
- }
-
- /* 12: Normal Frequency Request */
- /* RPNFREQ_VAL comes from MCHBAR 0x5998 23:16 (8 bits!? use 7) */
- reg32 = readl(MCHBAR_REG(0x5998));
- reg32 >>= 16;
- reg32 &= 0xef;
- reg32 <<= 25;
- gtt_write(gtt_bar, 0xa008, reg32);
-
- /* 13: RP Control */
- gtt_write(gtt_bar, 0xa024, 0x00000592);
-
- /* 14: Enable PM Interrupts */
- gtt_write(gtt_bar, 0x4402c, 0x03000076);
-
- /* Clear 0x6c024 [8:6] */
- reg32 = gtt_read(gtt_bar, 0x6c024);
- reg32 &= ~0x000001c0;
- gtt_write(gtt_bar, 0x6c024, reg32);
-
- return 0;
-}
-
-int gma_pm_init_post_vbios(struct udevice *dev, int rev, void *gtt_bar)
-{
- const void *blob = gd->fdt_blob;
- int node = dev->of_offset;
- u32 reg32, cycle_delay;
-
- debug("GT Power Management Init (post VBIOS)\n");
-
- /* 15: Deassert Force Wake */
- if (rev < IVB_STEP_C0) {
- gtt_write(gtt_bar, 0xa18c, gtt_read(gtt_bar, 0xa18c) & ~1);
- gtt_poll(gtt_bar, 0x130090, (1 << 0), (0 << 0));
- } else {
- gtt_write(gtt_bar, 0xa188, 0x1fffe);
- if (gtt_poll(gtt_bar, 0x130040, (1 << 0), (0 << 0))) {
- gtt_write(gtt_bar, 0xa188,
- gtt_read(gtt_bar, 0xa188) | 1);
- }
- }
-
- /* 16: SW RC Control */
- gtt_write(gtt_bar, 0xa094, 0x00060000);
-
- /* Setup Digital Port Hotplug */
- reg32 = gtt_read(gtt_bar, 0xc4030);
- if (!reg32) {
- u32 dp_hotplug[3];
-
- if (fdtdec_get_int_array(blob, node, "intel,dp_hotplug",
- dp_hotplug, ARRAY_SIZE(dp_hotplug)))
- return -EINVAL;
-
- reg32 = (dp_hotplug[0] & 0x7) << 2;
- reg32 |= (dp_hotplug[0] & 0x7) << 10;
- reg32 |= (dp_hotplug[0] & 0x7) << 18;
- gtt_write(gtt_bar, 0xc4030, reg32);
- }
-
- /* Setup Panel Power On Delays */
- reg32 = gtt_read(gtt_bar, 0xc7208);
- if (!reg32) {
- reg32 = (unsigned)fdtdec_get_int(blob, node,
- "panel-port-select", 0) << 30;
- reg32 |= fdtdec_get_int(blob, node, "panel-power-up-delay", 0)
- << 16;
- reg32 |= fdtdec_get_int(blob, node,
- "panel-power-backlight-on-delay", 0);
- gtt_write(gtt_bar, 0xc7208, reg32);
- }
-
- /* Setup Panel Power Off Delays */
- reg32 = gtt_read(gtt_bar, 0xc720c);
- if (!reg32) {
- reg32 = fdtdec_get_int(blob, node, "panel-power-down-delay", 0)
- << 16;
- reg32 |= fdtdec_get_int(blob, node,
- "panel-power-backlight-off-delay", 0);
- gtt_write(gtt_bar, 0xc720c, reg32);
- }
-
- /* Setup Panel Power Cycle Delay */
- cycle_delay = fdtdec_get_int(blob, node,
- "intel,panel-power-cycle-delay", 0);
- if (cycle_delay) {
- reg32 = gtt_read(gtt_bar, 0xc7210);
- reg32 &= ~0xff;
- reg32 |= cycle_delay;
- gtt_write(gtt_bar, 0xc7210, reg32);
- }
-
- /* Enable Backlight if needed */
- reg32 = fdtdec_get_int(blob, node, "intel,cpu-backlight", 0);
- if (reg32) {
- gtt_write(gtt_bar, 0x48250, (1 << 31));
- gtt_write(gtt_bar, 0x48254, reg32);
- }
- reg32 = fdtdec_get_int(blob, node, "intel,pch-backlight", 0);
- if (reg32) {
- gtt_write(gtt_bar, 0xc8250, (1 << 31));
- gtt_write(gtt_bar, 0xc8254, reg32);
- }
-
- return 0;
-}
-
-/*
- * Some vga option roms are used for several chipsets but they only have one
- * PCI ID in their header. If we encounter such an option rom, we need to do
- * the mapping ourselves.
- */
-
-uint32_t board_map_oprom_vendev(uint32_t vendev)
-{
- switch (vendev) {
- case 0x80860102: /* GT1 Desktop */
- case 0x8086010a: /* GT1 Server */
- case 0x80860112: /* GT2 Desktop */
- case 0x80860116: /* GT2 Mobile */
- case 0x80860122: /* GT2 Desktop >=1.3GHz */
- case 0x80860126: /* GT2 Mobile >=1.3GHz */
- case 0x80860156: /* IVB */
- case 0x80860166: /* IVB */
- return 0x80860106; /* GT1 Mobile */
- }
-
- return vendev;
-}
-
-static int int15_handler(void)
-{
- int res = 0;
-
- debug("%s: INT15 function %04x!\n", __func__, M.x86.R_AX);
-
- switch (M.x86.R_AX) {
- case 0x5f34:
- /*
- * Set Panel Fitting Hook:
- * bit 2 = Graphics Stretching
- * bit 1 = Text Stretching
- * bit 0 = Centering (do not set with bit1 or bit2)
- * 0 = video bios default
- */
- M.x86.R_AX = 0x005f;
- M.x86.R_CL = 0x00; /* Use video bios default */
- res = 1;
- break;
- 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;
- case 0x5f51:
- /*
- * Hook to select active LFP configuration:
- * 00h = No LVDS, VBIOS does not enable LVDS
- * 01h = Int-LVDS, LFP driven by integrated LVDS decoder
- * 02h = SVDO-LVDS, LFP driven by SVDO decoder
- * 03h = eDP, LFP Driven by Int-DisplayPort encoder
- */
- M.x86.R_AX = 0x005f;
- M.x86.R_CX = 0x0003; /* eDP */
- res = 1;
- break;
- case 0x5f70:
- switch (M.x86.R_CH) {
- case 0:
- /* Get Mux */
- M.x86.R_AX = 0x005f;
- M.x86.R_CX = 0x0000;
- res = 1;
- break;
- case 1:
- /* Set Mux */
- M.x86.R_AX = 0x005f;
- M.x86.R_CX = 0x0000;
- res = 1;
- break;
- case 2:
- /* Get SG/Non-SG mode */
- M.x86.R_AX = 0x005f;
- M.x86.R_CX = 0x0000;
- res = 1;
- break;
- default:
- /* Interrupt was not handled */
- debug("Unknown INT15 5f70 function: 0x%02x\n",
- M.x86.R_CH);
- break;
- }
- break;
- case 0x5fac:
- res = 1;
- break;
- default:
- debug("Unknown INT15 function %04x!\n", M.x86.R_AX);
- break;
- }
- return res;
-}
-
-void sandybridge_setup_graphics(struct udevice *dev, struct udevice *video_dev)
-{
- u32 reg32;
- u16 reg16;
- u8 reg8;
-
- dm_pci_read_config16(video_dev, PCI_DEVICE_ID, ®16);
- switch (reg16) {
- case 0x0102: /* GT1 Desktop */
- case 0x0106: /* GT1 Mobile */
- case 0x010a: /* GT1 Server */
- case 0x0112: /* GT2 Desktop */
- case 0x0116: /* GT2 Mobile */
- case 0x0122: /* GT2 Desktop >=1.3GHz */
- case 0x0126: /* GT2 Mobile >=1.3GHz */
- case 0x0156: /* IvyBridge */
- case 0x0166: /* IvyBridge */
- break;
- default:
- debug("Graphics not supported by this CPU/chipset\n");
- return;
- }
-
- debug("Initialising Graphics\n");
-
- /* Setup IGD memory by setting GGC[7:3] = 1 for 32MB */
- dm_pci_read_config16(dev, GGC, ®16);
- reg16 &= ~0x00f8;
- reg16 |= 1 << 3;
- /* Program GTT memory by setting GGC[9:8] = 2MB */
- reg16 &= ~0x0300;
- reg16 |= 2 << 8;
- /* Enable VGA decode */
- reg16 &= ~0x0002;
- dm_pci_write_config16(dev, GGC, reg16);
-
- /* Enable 256MB aperture */
- dm_pci_read_config8(video_dev, MSAC, ®8);
- reg8 &= ~0x06;
- reg8 |= 0x02;
- dm_pci_write_config8(video_dev, MSAC, reg8);
-
- /* Erratum workarounds */
- reg32 = readl(MCHBAR_REG(0x5f00));
- reg32 |= (1 << 9) | (1 << 10);
- writel(reg32, MCHBAR_REG(0x5f00));
-
- /* Enable SA Clock Gating */
- reg32 = readl(MCHBAR_REG(0x5f00));
- writel(reg32 | 1, MCHBAR_REG(0x5f00));
-
- /* GPU RC6 workaround for sighting 366252 */
- reg32 = readl(MCHBAR_REG(0x5d14));
- reg32 |= (1 << 31);
- writel(reg32, MCHBAR_REG(0x5d14));
-
- /* VLW */
- reg32 = readl(MCHBAR_REG(0x6120));
- reg32 &= ~(1 << 0);
- writel(reg32, MCHBAR_REG(0x6120));
-
- reg32 = readl(MCHBAR_REG(0x5418));
- reg32 |= (1 << 4) | (1 << 5);
- writel(reg32, MCHBAR_REG(0x5418));
-}
-
-int gma_func0_init(struct udevice *dev)
-{
-#ifdef CONFIG_VIDEO
- ulong start;
-#endif
- struct udevice *nbridge;
- void *gtt_bar;
- ulong base;
- u32 reg32;
- int ret;
- int rev;
-
- /* Enable PCH Display Port */
- writew(0x0010, RCB_REG(DISPBDF));
- setbits_le32(RCB_REG(FD2), PCH_ENABLE_DBDF);
-
- ret = uclass_first_device_err(UCLASS_NORTHBRIDGE, &nbridge);
- if (ret)
- return ret;
- rev = bridge_silicon_revision(nbridge);
- sandybridge_setup_graphics(nbridge, dev);
-
- /* IGD needs to be Bus Master */
- dm_pci_read_config32(dev, PCI_COMMAND, ®32);
- reg32 |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
- dm_pci_write_config32(dev, PCI_COMMAND, reg32);
-
- /* Use write-combining for the graphics memory, 256MB */
- base = dm_pci_read_bar32(dev, 2);
- mtrr_add_request(MTRR_TYPE_WRCOMB, base, 256 << 20);
- mtrr_commit(true);
-
- gtt_bar = (void *)dm_pci_read_bar32(dev, 0);
- debug("GT bar %p\n", gtt_bar);
- ret = gma_pm_init_pre_vbios(gtt_bar, rev);
- if (ret)
- return ret;
-
-#ifdef CONFIG_VIDEO
- start = get_timer(0);
- ret = dm_pci_run_vga_bios(dev, int15_handler,
- PCI_ROM_USE_NATIVE | PCI_ROM_ALLOW_FALLBACK);
- debug("BIOS ran in %lums\n", get_timer(start));
-#endif
- /* Post VBIOS init */
- ret = gma_pm_init_post_vbios(dev, rev, gtt_bar);
- if (ret)
- return ret;
-
- return 0;
-}
projects / u-boot / commitdiff