soc/intel/cannonlake: Add early CPU initialization

Add basic CPU initialization for bootblock, as well as relevant headers.

Change-Id: I318b7ea0f3aa5b5d28bf70784ccd20f2fe28cd86
Signed-off-by: Andrey Petrov <andrey.petrov@intel.com>
Reviewed-on: https://review.coreboot.org/20066
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/soc/intel/cannonlake/Kconfig

@@ -11,6 +11,7 @@ config CPU_SPECIFIC_OPTIONS
 	select ARCH_VERSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
+	select SOC_INTEL_COMMON_BLOCK_TIMER
 	select HAVE_MONOTONIC_TIMER
 	select TSC_CONSTANT_RATE
 	select TSC_MONOTONIC_TIMER
@@ -25,6 +26,7 @@ config CPU_SPECIFIC_OPTIONS
 	select SOC_INTEL_COMMON_BLOCK_SA
 	select SOC_INTEL_COMMON_BLOCK
 	select SOC_INTEL_COMMON_BLOCK_CAR
+	select SOC_INTEL_COMMON_BLOCK_CPU
 	select SOC_INTEL_COMMON_RESET
 	select SOC_INTEL_COMMON_BLOCK_LPSS
 	select SOC_INTEL_COMMON_BLOCK_UART
@@ -64,4 +66,8 @@ config PCR_BASE_ADDRESS
 	help
 	  This option allows you to select MMIO Base Address of sideband bus.
 
+config CPU_BCLK_MHZ
+	int
+	default 100
+
 endif

src/soc/intel/cannonlake/bootblock/cpu.c

@@ -0,0 +1,28 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2017 Intel Corporation.
+ *
+ * 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.
+ */
+
+#include <intelblocks/cpulib.h>
+#include <intelblocks/fast_spi.h>
+#include <soc/bootblock.h>
+
+void bootblock_cpu_init(void)
+{
+	/* Temporarily cache the memory-mapped boot media. */
+	if (IS_ENABLED(CONFIG_BOOT_DEVICE_MEMORY_MAPPED) &&
+		IS_ENABLED(CONFIG_BOOT_DEVICE_SPI_FLASH))
+		fast_spi_cache_bios_region();
+}
+

src/soc/intel/cannonlake/include/soc/cpu.h

@@ -0,0 +1,54 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2017 Intel Corporation.
+ *
+ * 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.
+ */
+
+#ifndef _SOC_CANNONLAKE_CPU_H_
+#define _SOC_CANNONLAKE_CPU_H_
+
+#include <arch/cpu.h>
+#include <device/device.h>
+
+/* Supported CPUIDs */
+#define CPUID_CANNONLAKE_A0	0x60660
+#define CPUID_CANNONLAKE_B0	0x60661
+#define CPUID_CANNONLAKE_C0	0x60662
+
+/* Latency times in units of 1024ns. */
+#define C_STATE_LATENCY_CONTROL_0_LIMIT	0x4e
+#define C_STATE_LATENCY_CONTROL_1_LIMIT	0x76
+#define C_STATE_LATENCY_CONTROL_2_LIMIT	0x94
+#define C_STATE_LATENCY_CONTROL_3_LIMIT	0xfa
+#define C_STATE_LATENCY_CONTROL_4_LIMIT	0x14c
+#define C_STATE_LATENCY_CONTROL_5_LIMIT	0x3f2
+
+/* Power in units of mW */
+#define C1_POWER	0x3e8
+#define C3_POWER	0x1f4
+#define C6_POWER	0x15e
+#define C7_POWER	0xc8
+#define C8_POWER	0xc8
+#define C9_POWER	0xc8
+#define C10_POWER	0xc8
+
+#define C_STATE_LATENCY_MICRO_SECONDS(limit, base) \
+	(((1 << ((base)*5)) * (limit)) / 1000)
+#define C_STATE_LATENCY_FROM_LAT_REG(reg) \
+	C_STATE_LATENCY_MICRO_SECONDS(C_STATE_LATENCY_CONTROL_ ##reg## _LIMIT, \
+				      (IRTL_1024_NS >> 10))
+
+/* Configure power limits for turbo mode */
+void set_power_limits(u8 power_limit_1_time);
+
+#endif

src/soc/intel/cannonlake/include/soc/msr.h

@@ -0,0 +1,41 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2017 Intel Corporation.
+ *
+ * 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.
+ */
+
+#ifndef _SOC_MSR_H_
+#define _SOC_MSR_H_
+
+#include <intelblocks/msr.h>
+
+#define MSR_PIC_MSG_CONTROL		0x2e
+#define MSR_BIOS_UPGD_TRIG		0x7a
+#define IA32_THERM_INTERRUPT		0x19b
+#define IA32_ENERGY_PERFORMANCE_BIAS	0x1b0
+#define  ENERGY_POLICY_PERFORMANCE	0
+#define  ENERGY_POLICY_NORMAL		6
+#define  ENERGY_POLICY_POWERSAVE	15
+#define IA32_PACKAGE_THERM_INTERRUPT	0x1b2
+#define PRMRR_PHYS_BASE_MSR		0x1f4
+#define IA32_PLATFORM_DCA_CAP		0x1f8
+#define MSR_LT_LOCK_MEMORY		0x2e7
+#define MSR_SGX_OWNEREPOCH0		0x300
+#define MSR_SGX_OWNEREPOCH1		0x301
+#define MSR_VR_CURRENT_CONFIG		0x601
+#define MSR_VR_MISC_CONFIG		0x603
+#define MSR_VR_MISC_CONFIG2		0x636
+#define MSR_PP0_POWER_LIMIT		0x638
+#define MSR_PP1_POWER_LIMIT		0x640
+
+#endif