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Diffstat (limited to 'src/northbridge/intel/haswell/gma.c')
-rw-r--r--src/northbridge/intel/haswell/gma.c670
1 files changed, 670 insertions, 0 deletions
diff --git a/src/northbridge/intel/haswell/gma.c b/src/northbridge/intel/haswell/gma.c
new file mode 100644
index 0000000000..08c13df8bc
--- /dev/null
+++ b/src/northbridge/intel/haswell/gma.c
@@ -0,0 +1,670 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2011 Chromium OS Authors
+ *
+ * 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 <arch/io.h>
+#include <console/console.h>
+#include <delay.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <device/pci_ids.h>
+
+#include "chip.h"
+#include "haswell.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 ourselfes
+ */
+
+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 0x80860166: /* IVB */
+ new_vendev=0x80860106; /* GT1 Mobile */
+ break;
+ }
+
+ return new_vendev;
+}
+
+static struct resource *gtt_res = NULL;
+
+static inline u32 gtt_read(u32 reg)
+{
+ return read32(gtt_res->base + reg);
+}
+
+static inline void gtt_write(u32 reg, u32 data)
+{
+ write32(gtt_res->base + reg, data);
+}
+
+static inline void gtt_write_powermeter(const struct gt_powermeter *pm)
+{
+ for (; pm && pm->reg; pm++)
+ gtt_write(pm->reg, pm->value);
+}
+
+#define GTT_RETRY 1000
+static int gtt_poll(u32 reg, u32 mask, u32 value)
+{
+ unsigned try = GTT_RETRY;
+ u32 data;
+
+ while (try--) {
+ data = gtt_read(reg);
+ if ((data & mask) == value)
+ return 1;
+ udelay(10);
+ }
+
+ printk(BIOS_ERR, "GT init timeout\n");
+ return 0;
+}
+
+static void gma_pm_init_pre_vbios(struct device *dev)
+{
+ u32 reg32;
+
+ printk(BIOS_DEBUG, "GT Power Management Init\n");
+
+ gtt_res = find_resource(dev, PCI_BASE_ADDRESS_0);
+ if (!gtt_res || !gtt_res->base)
+ return;
+
+ if (bridge_silicon_revision() < IVB_STEP_C0) {
+ /* 1: Enable force wake */
+ gtt_write(0xa18c, 0x00000001);
+ gtt_poll(0x130090, (1 << 0), (1 << 0));
+ } else {
+ gtt_write(0xa180, 1 << 5);
+ gtt_write(0xa188, 0xffff0001);
+ gtt_poll(0x130040, (1 << 0), (1 << 0));
+ }
+
+ if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_SNB) {
+ /* 1d: Set GTT+0x42004 [15:14]=11 (SnB C1+) */
+ reg32 = gtt_read(0x42004);
+ reg32 |= (1 << 14) | (1 << 15);
+ gtt_write(0x42004, reg32);
+ }
+
+ if (bridge_silicon_revision() >= IVB_STEP_A0) {
+ /* Display Reset Acknowledge Settings */
+ reg32 = gtt_read(0x45010);
+ reg32 |= (1 << 1) | (1 << 0);
+ gtt_write(0x45010, reg32);
+ }
+
+ /* 2: Get GT SKU from GTT+0x911c[13] */
+ reg32 = gtt_read(0x911c);
+ if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_SNB) {
+ if (reg32 & (1 << 13)) {
+ printk(BIOS_DEBUG, "SNB GT1 Power Meter Weights\n");
+ gtt_write_powermeter(snb_pm_gt1);
+ } else {
+ printk(BIOS_DEBUG, "SNB GT2 Power Meter Weights\n");
+ gtt_write_powermeter(snb_pm_gt2);
+ }
+ } else {
+ u32 unit = MCHBAR32(0x5938) & 0xf;
+
+ if (reg32 & (1 << 13)) {
+ /* GT1 SKU */
+ printk(BIOS_DEBUG, "IVB GT1 Power Meter Weights\n");
+ gtt_write_powermeter(ivb_pm_gt1);
+ } else {
+ /* GT2 SKU */
+ u32 tdp = MCHBAR32(0x5930) & 0x7fff;
+ tdp /= (1 << unit);
+
+ if (tdp <= 17) {
+ /* <=17W ULV */
+ printk(BIOS_DEBUG, "IVB GT2 17W "
+ "Power Meter Weights\n");
+ gtt_write_powermeter(ivb_pm_gt2_17w);
+ } else if ((tdp >= 25) && (tdp <= 35)) {
+ /* 25W-35W */
+ printk(BIOS_DEBUG, "IVB GT2 25W-35W "
+ "Power Meter Weights\n");
+ gtt_write_powermeter(ivb_pm_gt2_35w);
+ } else {
+ /* All others */
+ printk(BIOS_DEBUG, "IVB GT2 35W "
+ "Power Meter Weights\n");
+ gtt_write_powermeter(ivb_pm_gt2_35w);
+ }
+ }
+ }
+
+ /* 3: Gear ratio map */
+ gtt_write(0xa004, 0x00000010);
+
+ /* 4: GFXPAUSE */
+ gtt_write(0xa000, 0x00070020);
+
+ /* 5: Dynamic EU trip control */
+ gtt_write(0xa080, 0x00000004);
+
+ /* 6: ECO bits */
+ reg32 = gtt_read(0xa180);
+ reg32 |= (1 << 26) | (1 << 31);
+ /* (bit 20=1 for SNB step D1+ / IVB A0+) */
+ if (bridge_silicon_revision() >= SNB_STEP_D1)
+ reg32 |= (1 << 20);
+ gtt_write(0xa180, reg32);
+
+ /* 6a: for SnB step D2+ only */
+ if (((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_SNB) &&
+ (bridge_silicon_revision() >= SNB_STEP_D2)) {
+ reg32 = gtt_read(0x9400);
+ reg32 |= (1 << 7);
+ gtt_write(0x9400, reg32);
+
+ reg32 = gtt_read(0x941c);
+ reg32 &= 0xf;
+ reg32 |= (1 << 1);
+ gtt_write(0x941c, reg32);
+ gtt_poll(0x941c, (1 << 1), (0 << 1));
+ }
+
+ if ((bridge_silicon_revision() & BASE_REV_MASK) == BASE_REV_IVB) {
+ reg32 = gtt_read(0x907c);
+ reg32 |= (1 << 16);
+ gtt_write(0x907c, reg32);
+
+ /* 6b: Clocking reset controls */
+ gtt_write(0x9424, 0x00000001);
+ } else {
+ /* 6b: Clocking reset controls */
+ gtt_write(0x9424, 0x00000000);
+ }
+
+ /* 7 */
+ if (gtt_poll(0x138124, (1 << 31), (0 << 31))) {
+ gtt_write(0x138128, 0x00000029); /* Mailbox Data */
+ gtt_write(0x138124, 0x80000004); /* Mailbox Cmd for RC6 VID */
+ if (gtt_poll(0x138124, (1 << 31), (0 << 31)))
+ gtt_write(0x138124, 0x8000000a);
+ gtt_poll(0x138124, (1 << 31), (0 << 31));
+ }
+
+ /* 8 */
+ gtt_write(0xa090, 0x00000000); /* RC Control */
+ gtt_write(0xa098, 0x03e80000); /* RC1e Wake Rate Limit */
+ gtt_write(0xa09c, 0x0028001e); /* RC6/6p Wake Rate Limit */
+ gtt_write(0xa0a0, 0x0000001e); /* RC6pp Wake Rate Limit */
+ gtt_write(0xa0a8, 0x0001e848); /* RC Evaluation Interval */
+ gtt_write(0xa0ac, 0x00000019); /* RC Idle Hysteresis */
+
+ /* 9 */
+ gtt_write(0x2054, 0x0000000a); /* Render Idle Max Count */
+ gtt_write(0x12054,0x0000000a); /* Video Idle Max Count */
+ gtt_write(0x22054,0x0000000a); /* Blitter Idle Max Count */
+
+ /* 10 */
+ gtt_write(0xa0b0, 0x00000000); /* Unblock Ack to Busy */
+ gtt_write(0xa0b4, 0x000003e8); /* RC1e Threshold */
+ gtt_write(0xa0b8, 0x0000c350); /* RC6 Threshold */
+ gtt_write(0xa0bc, 0x000186a0); /* RC6p Threshold */
+ gtt_write(0xa0c0, 0x0000fa00); /* RC6pp Threshold */
+
+ /* 11 */
+ gtt_write(0xa010, 0x000f4240); /* RP Down Timeout */
+ gtt_write(0xa014, 0x12060000); /* RP Interrupt Limits */
+ gtt_write(0xa02c, 0x00015f90); /* RP Up Threshold */
+ gtt_write(0xa030, 0x000186a0); /* RP Down Threshold */
+ gtt_write(0xa068, 0x000186a0); /* RP Up EI */
+ gtt_write(0xa06c, 0x000493e0); /* RP Down EI */
+ gtt_write(0xa070, 0x0000000a); /* RP Idle Hysteresis */
+
+ /* 11a: Enable Render Standby (RC6) */
+ if ((bridge_silicon_revision() & 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(0xa090, 0x88040000); /* HW RC Control */
+ } else {
+ gtt_write(0xa090, 0x88040000); /* HW RC Control */
+ }
+
+ /* 12: Normal Frequency Request */
+ /* RPNFREQ_VAL comes from MCHBAR 0x5998 23:16 (8 bits!? use 7) */
+ reg32 = MCHBAR32(0x5998);
+ reg32 >>= 16;
+ reg32 &= 0xef;
+ reg32 <<= 25;
+ gtt_write(0xa008, reg32);
+
+ /* 13: RP Control */
+ gtt_write(0xa024, 0x00000592);
+
+ /* 14: Enable PM Interrupts */
+ gtt_write(0x4402c, 0x03000076);
+
+ /* Clear 0x6c024 [8:6] */
+ reg32 = gtt_read(0x6c024);
+ reg32 &= ~0x000001c0;
+ gtt_write(0x6c024, reg32);
+}
+
+static void gma_pm_init_post_vbios(struct device *dev)
+{
+ struct northbridge_intel_haswell_config *conf = dev->chip_info;
+ u32 reg32;
+
+ printk(BIOS_DEBUG, "GT Power Management Init (post VBIOS)\n");
+
+ /* 15: Deassert Force Wake */
+ if (bridge_silicon_revision() < IVB_STEP_C0) {
+ gtt_write(0xa18c, gtt_read(0xa18c) & ~1);
+ gtt_poll(0x130090, (1 << 0), (0 << 0));
+ } else {
+ gtt_write(0xa188, 0x1fffe);
+ if (gtt_poll(0x130040, (1 << 0), (0 << 0)))
+ gtt_write(0xa188, gtt_read(0xa188) | 1);
+ }
+
+ /* 16: SW RC Control */
+ gtt_write(0xa094, 0x00060000);
+
+ /* Setup Digital Port Hotplug */
+ reg32 = gtt_read(0xc4030);
+ if (!reg32) {
+ reg32 = (conf->gpu_dp_b_hotplug & 0x7) << 2;
+ reg32 |= (conf->gpu_dp_c_hotplug & 0x7) << 10;
+ reg32 |= (conf->gpu_dp_d_hotplug & 0x7) << 18;
+ gtt_write(0xc4030, reg32);
+ }
+
+ /* Setup Panel Power On Delays */
+ reg32 = gtt_read(0xc7208);
+ if (!reg32) {
+ reg32 = (conf->gpu_panel_port_select & 0x3) << 30;
+ reg32 |= (conf->gpu_panel_power_up_delay & 0x1fff) << 16;
+ reg32 |= (conf->gpu_panel_power_backlight_on_delay & 0x1fff);
+ gtt_write(0xc7208, reg32);
+ }
+
+ /* Setup Panel Power Off Delays */
+ reg32 = gtt_read(0xc720c);
+ if (!reg32) {
+ reg32 = (conf->gpu_panel_power_down_delay & 0x1fff) << 16;
+ reg32 |= (conf->gpu_panel_power_backlight_off_delay & 0x1fff);
+ gtt_write(0xc720c, reg32);
+ }
+
+ /* Setup Panel Power Cycle Delay */
+ if (conf->gpu_panel_power_cycle_delay) {
+ reg32 = gtt_read(0xc7210);
+ reg32 &= ~0xff;
+ reg32 |= conf->gpu_panel_power_cycle_delay & 0xff;
+ gtt_write(0xc7210, reg32);
+ }
+
+ /* Enable Backlight if needed */
+ if (conf->gpu_cpu_backlight) {
+ gtt_write(0x48250, (1 << 31));
+ gtt_write(0x48254, conf->gpu_cpu_backlight);
+ }
+ if (conf->gpu_pch_backlight) {
+ gtt_write(0xc8250, (1 << 31));
+ gtt_write(0xc8254, conf->gpu_pch_backlight);
+ }
+}
+
+static void gma_func0_init(struct device *dev)
+{
+ u32 reg32;
+
+ /* IGD needs to be Bus Master */
+ reg32 = pci_read_config32(dev, PCI_COMMAND);
+ reg32 |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY | PCI_COMMAND_IO;
+ pci_write_config32(dev, PCI_COMMAND, reg32);
+
+ /* Init graphics power management */
+ gma_pm_init_pre_vbios(dev);
+
+ /* PCI Init, will run VBIOS */
+ pci_dev_init(dev);
+
+ /* Post VBIOS init */
+ gma_pm_init_post_vbios(dev);
+}
+
+static void gma_set_subsystem(device_t dev, unsigned vendor, unsigned device)
+{
+ if (!vendor || !device) {
+ pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
+ pci_read_config32(dev, PCI_VENDOR_ID));
+ } else {
+ pci_write_config32(dev, PCI_SUBSYSTEM_VENDOR_ID,
+ ((device & 0xffff) << 16) | (vendor & 0xffff));
+ }
+}
+
+static struct pci_operations gma_pci_ops = {
+ .set_subsystem = gma_set_subsystem,
+};
+
+static struct device_operations gma_func0_ops = {
+ .read_resources = pci_dev_read_resources,
+ .set_resources = pci_dev_set_resources,
+ .enable_resources = pci_dev_enable_resources,
+ .init = gma_func0_init,
+ .scan_bus = 0,
+ .enable = 0,
+ .ops_pci = &gma_pci_ops,
+};
+
+static const unsigned short pci_device_ids[] = { 0x0102, 0x0106, 0x010a, 0x0112,
+ 0x0116, 0x0122, 0x0126, 0x0166,
+ 0 };
+
+static const struct pci_driver pch_lpc __pci_driver = {
+ .ops = &gma_func0_ops,
+ .vendor = PCI_VENDOR_ID_INTEL,
+ .devices = pci_device_ids,
+};
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-04 15:01:28 +0000