inteltool: Show more info on sandy/ivy.

Change-Id: I408614e743ab6f0f447b327c01d8f4dacf787124
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/6692
Tested-by: build bot (Jenkins)
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

1 files changed, 382 insertions, 0 deletions

diff --git a/util/inteltool/ivy_memory.c b/util/inteltool/ivy_memory.c
new file mode 100644
index 0000000000..50ee4c53bb
--- /dev/null
+++ b/util/inteltool/ivy_memory.c
@@ -0,0 +1,382 @@
+/*
+ * Copyright (C) 2014 Vladimir Serbinenko
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 or (at your option) any later version of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <inttypes.h>
+#include "inteltool.h"
+
+extern volatile uint8_t *mchbar;
+
+static uint32_t read_mchbar32(uint32_t addr)
+{
+	return *(volatile uint32_t *)(mchbar + addr);
+}
+
+static void
+print_time(const char *string, unsigned long long time, unsigned long long tCK)
+{
+	printf(".%s = %lld /* %lld clocks = %.3lf ns */,\n",
+	       string, time, time, (time * tCK) / 256.0);
+}
+
+static unsigned int
+make_spd_time(unsigned long long time, unsigned long long tCK)
+{
+	return (time * tCK) >> 5;
+}
+
+static u16 spd_ddr3_calc_crc(u8 * spd)
+{
+	int n_crc, i;
+	u8 *ptr;
+	u16 crc;
+
+	/* Find the number of bytes covered by CRC */
+	if (spd[0] & 0x80) {
+		n_crc = 117;
+	} else {
+		n_crc = 126;
+	}
+
+	/* Compute the CRC */
+	crc = 0;
+	ptr = spd;
+	while (--n_crc >= 0) {
+		crc = crc ^ (int)*ptr++ << 8;
+		for (i = 0; i < 8; ++i)
+			if (crc & 0x8000) {
+				crc = crc << 1 ^ 0x1021;
+			} else {
+				crc = crc << 1;
+			}
+	}
+	return crc;
+}
+
+void ivybridge_dump_timings(void)
+{
+	u32 mr0[2];
+	u32 mr1[2];
+	u32 reg;
+	unsigned int CAS = 0;
+	int tWR = 0, tRFC = 0;
+	int tFAW[2], tWTR[2], tCKE[2], tRTP[2], tRRD[2];
+	int channel, slot;
+	u32 reg_4004_b30[2] = { 0, 0 };
+	unsigned int tREFI;
+	int rankmap[2];
+	u32 mad_dimm[2];
+	unsigned int tRCD[2], tXP[2], tXPDLL[2], tRAS[2], tCWL[2], tRP[2],
+	    tAONPD[2];
+	unsigned int tXSOffset;
+	int two_channels = 1;
+	struct slot_info {
+		unsigned int size_mb;
+		unsigned int ranks;
+		unsigned int width;
+	} slots[2][2];
+	unsigned int tCK;
+	u8 spd[2][2][256];
+
+	memset(slots, 0, sizeof(slots));
+
+	for (channel = 0; channel < 2; channel++) {
+		rankmap[channel] = read_mchbar32(0xc14 + 0x100 * channel) >> 24;
+	}
+
+	two_channels = rankmap[0] && rankmap[1];
+
+	mr0[0] = read_mchbar32(0x0004);
+	mr1[0] = read_mchbar32(0x0008);
+	mr0[1] = read_mchbar32(0x0104);
+	mr1[1] = read_mchbar32(0x0108);
+
+	if (mr0[0] != mr0[1] && two_channels)
+		printf("MR0 mismatch: %x, %x\n", mr0[0], mr0[1]);
+	if (mr1[0] != mr1[1] && two_channels)
+		printf("MR1 mismatch: %x, %x\n", mr1[0], mr1[1]);
+
+	reg = read_mchbar32(0x5e00) & ~0x80000000;
+	printf(" .tCK = TCK_MHZ%d,\n", 400 * reg / 3);
+
+	tCK = (64 * 10 * 3) / reg;
+
+	if (mr0[0] & 1) {
+		CAS = ((mr0[0] >> 4) & 0x7) + 12;
+	} else {
+		CAS = ((mr0[0] >> 4) & 0x7) + 4;
+	}
+
+	for (channel = 0; channel < 2; channel++) {
+		mad_dimm[channel] = read_mchbar32(0x5004 + 4 * channel);
+	}
+
+	printf(".rankmap = { 0x%x, 0x%x }, \n", rankmap[0], rankmap[1]);
+
+	printf(".mad_dimm = { 0x%x, 0x%x }, \n", mad_dimm[0], mad_dimm[1]);
+
+	for (channel = 0; channel < 2; channel++)
+		if (rankmap[channel]) {
+			int ctWR;
+			static const u8 mr0_wr_t[12] =
+			    { 1, 2, 3, 4, 0, 5, 0, 6, 0, 7, 0, 0 };
+			reg = read_mchbar32(0x4004 + 0x400 * channel);
+
+			ctWR = (reg >> 24) & 0x3f;
+			if (tWR && ctWR != tWR)
+				printf("/* tWR mismatch: %d, %d */\n", tWR,
+				       ctWR);
+			if (!tWR)
+				tWR = ctWR;
+			if (((mr0[channel] >> 9) & 7) != mr0_wr_t[tWR - 5])
+				printf("/* encoded tWR mismatch: %d, %d */\n",
+				       ((mr0[channel] >> 9) & 7),
+				       mr0_wr_t[tWR - 5]);
+			reg_4004_b30[channel] = reg >> 30;
+			tFAW[channel] = (reg >> 16) & 0xff;
+			tWTR[channel] = (reg >> 12) & 0xf;
+			tCKE[channel] = (reg >> 8) & 0xf;
+			tRTP[channel] = (reg >> 4) & 0xf;
+			tRRD[channel] = (reg >> 0) & 0xf;
+
+			reg = read_mchbar32(0x4000 + 0x400 * channel);
+			tRAS[channel] = reg >> 16;
+			tCWL[channel] = (reg >> 12) & 0xf;
+			if (CAS != ((reg >> 8) & 0xf))
+				printf("/* CAS mismatch: %d, %d. */\n", CAS,
+				       (reg >> 8) & 0xf);
+			tRP[channel] = (reg >> 4) & 0xf;
+			tRCD[channel] = reg & 0xf;
+
+			reg = read_mchbar32(0x400c + channel * 0x400);
+			tXPDLL[channel] = reg & 0x1f;
+			tXP[channel] = (reg >> 5) & 7;
+			tAONPD[channel] = (reg >> 8) & 0xff;
+		}
+	printf(".mobile = %d,\n", (mr0[0] >> 12) & 1);
+	print_time("CAS", CAS, tCK);
+	print_time("tWR", tWR, tCK);
+
+	printf(".reg_4004_b30 = { %d, %d },\n", reg_4004_b30[0],
+	       reg_4004_b30[1]);
+	if (tFAW[0] != tFAW[1] && two_channels)
+		printf("/* tFAW mismatch: %d, %d */\n", tFAW[0], tFAW[1]);
+	print_time("tFAW", tFAW[0], tCK);
+	if (tWTR[0] != tWTR[1] && two_channels)
+		printf("/* tWTR mismatch: %d, %d */\n", tWTR[0], tWTR[1]);
+	print_time("tWTR", tWTR[0], tCK);
+	if (tCKE[0] != tCKE[1] && two_channels)
+		printf("/* tCKE mismatch: %d, %d */\n", tCKE[0], tCKE[1]);
+	print_time("tCKE", tCKE[0], tCK);
+	if (tRTP[0] != tRTP[1] && two_channels)
+		printf("/* tRTP mismatch: %d, %d */\n", tRTP[0], tRTP[1]);
+	print_time("tRTP", tRTP[0], tCK);
+	if (tRRD[0] != tRRD[1] && two_channels)
+		printf("/* tRRD mismatch: %d, %d */\n", tRRD[0], tRRD[1]);
+	print_time("tRRD", tRRD[0], tCK);
+
+	if (tRAS[0] != tRAS[1] && two_channels)
+		printf("/* tRAS mismatch: %d, %d */\n", tRAS[0], tRAS[1]);
+	print_time("tRAS", tRAS[0], tCK);
+
+	if (tCWL[0] != tCWL[1] && two_channels)
+		printf("/* tCWL mismatch: %d, %d */\n", tCWL[0], tCWL[1]);
+	print_time("tCWL", tCWL[0], tCK);
+
+	if (tRP[0] != tRP[1] && two_channels)
+		printf("/* tRP mismatch: %d, %d */\n", tRP[0], tRP[1]);
+	print_time("tRP", tRP[0], tCK);
+
+	if (tRCD[0] != tRCD[1] && two_channels)
+		printf("/* tRCD mismatch: %d, %d */\n", tRCD[0], tRCD[1]);
+	print_time("tRCD", tRCD[0], tCK);
+
+	if (tXPDLL[0] != tXPDLL[1] && two_channels)
+		printf("/* tXPDLL mismatch: %d, %d */\n", tXPDLL[0], tXPDLL[1]);
+	print_time("tXPDLL", tXPDLL[0], tCK);
+
+	if (tXP[0] != tXP[1] && two_channels)
+		printf("/* tXP mismatch: %d, %d */\n", tXP[0], tXP[1]);
+	print_time("tXP", tXP[0], tCK);
+
+	if (tAONPD[0] != tAONPD[1] && two_channels)
+		printf("/* tAONPD mismatch: %d, %d */\n", tAONPD[0], tAONPD[1]);
+	print_time("tAONPD", tAONPD[0], tCK);
+
+	reg = read_mchbar32(0x4298);
+	if (reg != read_mchbar32(0x4698) && two_channels)
+		printf("/* 4298 mismatch: %d, %d */\n", reg,
+		       read_mchbar32(0x4698));
+
+	tREFI = reg & 0xffff;
+	print_time("tREFI", tREFI, tCK);
+	if ((tREFI * 9 / 1024) != (reg >> 25))
+		printf("/* tREFI mismatch: %d, %d */\n", tREFI * 9 / 1024,
+		       (reg >> 25));
+	tRFC = (reg >> 16) & 0x1ff;
+	print_time("tRFC", tRFC, tCK);
+
+	reg = read_mchbar32(0x42a4);
+	if (reg != read_mchbar32(0x46a4) && two_channels)
+		printf("/* 42a4 mismatch: %d, %d */\n", reg,
+		       read_mchbar32(0x46a4));
+
+	print_time("tMOD", 8 + ((reg >> 28) & 0xf), tCK);
+
+	tXSOffset = 512 - ((reg >> 16) & 0x3ff);
+	print_time("tXSOffset", tXSOffset, tCK);
+	if (tXSOffset != ((reg >> 12) & 0xf))
+		printf("/* tXSOffset mismatch: %d, %d */\n",
+		       tXSOffset, (reg >> 12) & 0xf);
+	if (512 != (reg & 0xfff))
+		printf("/* tDLLK mismatch: %d, %d */\n", 512, reg & 0xfff);
+
+	reg = read_mchbar32(0x5064);
+	printf(".reg5064b0 = 0x%x,\n", reg & 0xfff);
+	if ((reg >> 12) != 0x73)
+		printf("/* mismatch 0x%x, 0x73.  */\n", reg << 12);
+
+	unsigned int ch0size, ch1size;
+
+	switch (read_mchbar32(0x5000)) {
+	case 0x24:
+		reg = read_mchbar32(0x5014);
+		ch1size = reg >> 24;
+		if (((reg >> 16) & 0xff) != 2 * ch1size)
+			printf("/* ch1size mismatch: %d, %d*/\n",
+			       2 * ch1size, ((ch1size >> 16) & 0xff));
+		printf(".channel_size_mb = { ?, %d },\n", ch1size * 256);
+		break;
+	case 0x21:
+		reg = read_mchbar32(0x5014);
+		ch0size = reg >> 24;
+		if (((reg >> 16) & 0xff) != 2 * ch0size)
+			printf("/* ch0size mismatch: %d, %d*/\n",
+			       2 * ch0size, ((ch0size >> 16) & 0xff));
+		printf(".channel_size_mb = { %d, ? },\n", ch0size * 256);
+		break;
+	}
+
+	for (channel = 0; channel < 2; channel++) {
+		reg = mad_dimm[channel];
+		int swap = (reg >> 16) & 1;
+		slots[channel][swap].size_mb = (reg & 0xff) * 256;
+		slots[channel][swap].ranks = 1 + ((reg >> 17) & 1);
+		slots[channel][swap].width = 8 + 8 * ((reg >> 19) & 1);
+		slots[channel][!swap].size_mb = ((reg >> 8) & 0xff) * 256;
+		slots[channel][!swap].ranks = 1 + ((reg >> 18) & 1);
+		slots[channel][!swap].width = 8 + 8 * ((reg >> 20) & 1);
+	}
+	/* Undetermined: rank mirror, other modes, asr, ext_temp.  */
+	memset(spd, 0, sizeof(spd));
+	for (channel = 0; channel < 2; channel++)
+		for (slot = 0; slot < 2; slot++)
+			if (slots[channel][slot].size_mb) {
+				printf("/* CH%dS%d: %d MiB  */\n", channel,
+				       slot, slots[channel][slot].size_mb);
+			}
+	for (channel = 0; channel < 2; channel++)
+		for (slot = 0; slot < 2; slot++)
+			if (slots[channel][slot].size_mb) {
+				int capacity_shift;
+				unsigned int ras, rc, rfc, faw;
+				u16 crc;
+				capacity_shift =
+				    ffs(slots[channel][slot].size_mb *
+					slots[channel][slot].width /
+					(slots[channel][slot].ranks * 64)) - 1 -
+				    5;
+
+				spd[channel][slot][0] = 0x92;
+				spd[channel][slot][1] = 0x11;
+				spd[channel][slot][2] = 0xb;	/* DDR3 */
+				spd[channel][slot][3] = 3;	/* SODIMM, should we use another type for desktop?  */
+				spd[channel][slot][4] = capacity_shift | 0;	/* 8 Banks.  */
+				spd[channel][slot][5] = 0;	/* FIXME */
+				spd[channel][slot][6] = 0;	/* FIXME */
+				spd[channel][slot][7] =
+				    ((slots[channel][slot].ranks -
+				      1) << 3) | (ffs(slots[channel][slot].
+						      width) - 1 - 2);
+				spd[channel][slot][8] = 3;	/* Bus width 64b. No ECC yet. */
+				spd[channel][slot][9] = 0x52;	/* 2.5ps. FIXME: choose dynamically if needed.  */
+				spd[channel][slot][10] = 0x01;
+				spd[channel][slot][11] = 0x08;	/* 1/8 ns. FIXME: choose dynamically if needed.  */
+				spd[channel][slot][12] = make_spd_time(1, tCK);
+				spd[channel][slot][13] = 0;
+				spd[channel][slot][14] =
+				    (1 << (CAS - 4)) & 0xff;
+				spd[channel][slot][15] = (1 << (CAS - 4)) >> 8;
+				spd[channel][slot][16] =
+				    make_spd_time(CAS, tCK);
+				spd[channel][slot][17] =
+				    make_spd_time(tWR, tCK);
+				spd[channel][slot][18] =
+				    make_spd_time(tRCD[channel], tCK);
+				spd[channel][slot][19] =
+				    make_spd_time(tRRD[channel], tCK);
+				spd[channel][slot][20] =
+				    make_spd_time(tRP[channel], tCK);
+				ras = make_spd_time(tRAS[channel], tCK);
+				rc = 0x181;	/* FIXME: should be make_spd_time(tRC, tCK).  */
+				spd[channel][slot][22] = ras;
+				spd[channel][slot][23] = rc;
+				spd[channel][slot][21] =
+				    ((ras >> 8) & 0xf) | ((rc >> 4) & 0xf0);
+				rfc = make_spd_time(tRFC, tCK);
+				spd[channel][slot][24] = rfc;
+				spd[channel][slot][25] = rfc >> 8;
+				spd[channel][slot][26] =
+				    make_spd_time(tWTR[channel], tCK);
+				spd[channel][slot][27] =
+				    make_spd_time(tRTP[channel], tCK);
+				faw = make_spd_time(tFAW[channel], tCK);
+				spd[channel][slot][28] = faw >> 8;
+				spd[channel][slot][29] = faw;
+				spd[channel][slot][30] = 0;	/* FIXME */
+				spd[channel][slot][31] = 0;	/* FIXME */
+				spd[channel][slot][32] = 0;	/* FIXME */
+				spd[channel][slot][33] = 0;	/* FIXME */
+				spd[channel][slot][62] = 0x65;	/* Reference card F.  FIXME */
+				spd[channel][slot][63] = 0;	/* FIXME */
+				crc = spd_ddr3_calc_crc(spd[channel][slot]);
+				spd[channel][slot][126] = crc;
+				spd[channel][slot][127] = crc >> 8;
+			}
+
+	printf("/* SPD matching current mode:  */\n");
+
+	for (channel = 0; channel < 2; channel++)
+		for (slot = 0; slot < 2; slot++)
+			if (slots[channel][slot].size_mb) {
+				int i;
+
+				printf("/* CH%dS%d  */\n", channel, slot);
+
+				for (i = 0; i < 256; i++) {
+					if ((i & 0xf) == 0x0)
+						printf("%02x: ", i);
+					printf("%02x ", spd[channel][slot][i]);
+					if ((i & 0xf) == 0xf)
+						printf("\n");
+				}
+				printf("\n");
+			}
+
+}