coreboot-gerrit September 2019

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Change in ...coreboot[master]: sb/intel/ibexpeak: Use SOUTHBRIDGE_INTEL_COMMON_PMCLIB
by Patrick Rudolph (Code Review) 10 Jun '23

10 Jun '23

Patrick Rudolph has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/32316 Change subject: sb/intel/ibexpeak: Use SOUTHBRIDGE_INTEL_COMMON_PMCLIB ...................................................................... sb/intel/ibexpeak: Use SOUTHBRIDGE_INTEL_COMMON_PMCLIB Use common code to detect ACPI S3. Untested. Change-Id: I766a3f4206e6605e6b7bb9a1ff0b2deb6721eb77 Signed-off-by: Patrick Rudolph <patrick.rudolph(a)9elements.com> --- M src/mainboard/lenovo/x201/romstage.c M src/mainboard/packardbell/ms2290/romstage.c M src/southbridge/intel/ibexpeak/Kconfig 3 files changed, 13 insertions(+), 46 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/16/32316/1 diff --git a/src/mainboard/lenovo/x201/romstage.c b/src/mainboard/lenovo/x201/romstage.c index 7e895b4..e65622c 100644 --- a/src/mainboard/lenovo/x201/romstage.c +++ b/src/mainboard/lenovo/x201/romstage.c @@ -34,6 +34,7 @@ #include "dock.h" #include <southbridge/intel/ibexpeak/pch.h> #include <southbridge/intel/common/gpio.h> +#include <southbridge/intel/common/pmclib.h> #include <northbridge/intel/nehalem/nehalem.h> #include <northbridge/intel/nehalem/raminit.h> @@ -206,24 +207,14 @@ /* Halt if there was a built in self test failure */ report_bist_failure(bist); - /* Read PM1_CNT */ - reg32 = inl(DEFAULT_PMBASE + 0x04); - printk(BIOS_DEBUG, "PM1_CNT: %08x\n", reg32); - if (((reg32 >> 10) & 7) == 5) { - u8 reg8; - reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xa2); + /* Check for S3 resume. */ + s3resume = southbridge_detect_s3_resume(); + if (s3resume) { + u8 reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xa2); printk(BIOS_DEBUG, "a2: %02x\n", reg8); if (!(reg8 & 0x20)) { - outl(reg32 & ~(7 << 10), DEFAULT_PMBASE + 0x04); printk(BIOS_DEBUG, "Bad resume from S3 detected.\n"); - } else { - if (acpi_s3_resume_allowed()) { - printk(BIOS_DEBUG, "Resume from S3 detected.\n"); - s3resume = 1; - } else { - printk(BIOS_DEBUG, - "Resume from S3 detected, but disabled.\n"); - } + s3resume = 0; } } @@ -263,13 +254,5 @@ intel_early_me_status(); - if (s3resume) { - /* Clear SLP_TYPE. This will break stage2 but - * we care for that when we get there. - */ - reg32 = inl(DEFAULT_PMBASE + 0x04); - outl(reg32 & ~(7 << 10), DEFAULT_PMBASE + 0x04); - } - romstage_handoff_init(s3resume); } diff --git a/src/mainboard/packardbell/ms2290/romstage.c b/src/mainboard/packardbell/ms2290/romstage.c index 8442dfa..854c835 100644 --- a/src/mainboard/packardbell/ms2290/romstage.c +++ b/src/mainboard/packardbell/ms2290/romstage.c @@ -34,6 +34,7 @@ #include "arch/early_variables.h" #include <southbridge/intel/ibexpeak/pch.h> #include <northbridge/intel/nehalem/nehalem.h> +#include <southbridge/intel/common/pmclib.h> #include <northbridge/intel/nehalem/raminit.h> #include <southbridge/intel/ibexpeak/me.h> @@ -206,24 +207,14 @@ /* Halt if there was a built in self test failure */ report_bist_failure(bist); - /* Read PM1_CNT */ - reg32 = inl(DEFAULT_PMBASE + 0x04); - printk(BIOS_DEBUG, "PM1_CNT: %08x\n", reg32); - if (((reg32 >> 10) & 7) == 5) { - u8 reg8; - reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xa2); + /* Check for S3 resume. */ + s3resume = southbridge_detect_s3_resume(); + if (s3resume) { + u8 reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xa2); printk(BIOS_DEBUG, "a2: %02x\n", reg8); if (!(reg8 & 0x20)) { - outl(reg32 & ~(7 << 10), DEFAULT_PMBASE + 0x04); printk(BIOS_DEBUG, "Bad resume from S3 detected.\n"); - } else { - if (acpi_s3_resume_allowed()) { - printk(BIOS_DEBUG, "Resume from S3 detected.\n"); - s3resume = 1; - } else { - printk(BIOS_DEBUG, - "Resume from S3 detected, but disabled.\n"); - } + s3resume = 0; } } @@ -255,13 +246,5 @@ intel_early_me_status(); - if (s3resume) { - /* Clear SLP_TYPE. This will break stage2 but - * we care for that when we get there. - */ - reg32 = inl(DEFAULT_PMBASE + 0x04); - outl(reg32 & ~(7 << 10), DEFAULT_PMBASE + 0x04); - } - romstage_handoff_init(s3resume); } diff --git a/src/southbridge/intel/ibexpeak/Kconfig b/src/southbridge/intel/ibexpeak/Kconfig index bb6e22c..59b012e 100644 --- a/src/southbridge/intel/ibexpeak/Kconfig +++ b/src/southbridge/intel/ibexpeak/Kconfig @@ -32,6 +32,7 @@ select SOUTHBRIDGE_INTEL_COMMON_RCBA_PIRQ select SOUTHBRIDGE_INTEL_COMMON_SMBUS select SOUTHBRIDGE_INTEL_COMMON_SPI + select SOUTHBRIDGE_INTEL_COMMON_PMCLIB select HAVE_USBDEBUG_OPTIONS select COMMON_FADT select ACPI_SATA_GENERATOR -- To view, visit https://review.coreboot.org/c/coreboot/+/32316 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I766a3f4206e6605e6b7bb9a1ff0b2deb6721eb77 Gerrit-Change-Number: 32316 Gerrit-PatchSet: 1 Gerrit-Owner: Patrick Rudolph <patrick.rudolph(a)9elements.com> Gerrit-MessageType: newchange

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Change in coreboot[master]: soc/intel/cannonlake: Speed up postcar loading using intermediate cac...
by Subrata Banik (Code Review) 10 Jun '23

10 Jun '23

Subrata Banik has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/34791 ) Change subject: soc/intel/cannonlake: Speed up postcar loading using intermediate caching ...................................................................... soc/intel/cannonlake: Speed up postcar loading using intermediate caching This patch ensures intermediate caching is enabled to speed up loading and decompression of next stage as we are still in romstage and car tear down will be handled by next stage at its entry. TEST=cbmem -t shows ~2-4ms time savings in warm reboot case with this CL. Change-Id: I3ba63887acb5c4bdeaf3e21c24fb0e631362962c Signed-off-by: Subrata Banik <subrata.banik(a)intel.com> --- M src/soc/intel/cannonlake/romstage/romstage.c 1 file changed, 17 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/91/34791/1 diff --git a/src/soc/intel/cannonlake/romstage/romstage.c b/src/soc/intel/cannonlake/romstage/romstage.c index 94b9899..04a9d53 100644 --- a/src/soc/intel/cannonlake/romstage/romstage.c +++ b/src/soc/intel/cannonlake/romstage/romstage.c @@ -127,6 +127,21 @@ printk(BIOS_DEBUG, "%d DIMMs found\n", mem_info->dimm_cnt); } +/* + * Make sure we are enabling intermediate caching to speed up next stage + * (postcar/romstage) loading and decompression as we are still in romstage + * and car tear down will be handled by next stage at its entry. + */ +static void enable_ramstage_caching(uintptr_t base, size_t size) +{ + int mtrr = get_free_var_mtrr(); + + if (mtrr == -1) + return; + + set_var_mtrr(mtrr, base, size, MTRR_TYPE_WRPROT); +} + asmlinkage void car_stage_entry(void) { bool s3wake; @@ -160,6 +175,8 @@ printk(BIOS_DEBUG, "top_of_ram = 0x%lx\n", top_of_ram); top_of_ram -= 16*MiB; postcar_frame_add_mtrr(&pcf, top_of_ram, 16*MiB, MTRR_TYPE_WRBACK); + /* enabling intermediate caching */ + enable_ramstage_caching(top_of_ram, 16*MiB); /* Cache the ROM as WP just below 4GiB. */ postcar_frame_add_romcache(&pcf, MTRR_TYPE_WRPROT); -- To view, visit https://review.coreboot.org/c/coreboot/+/34791 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I3ba63887acb5c4bdeaf3e21c24fb0e631362962c Gerrit-Change-Number: 34791 Gerrit-PatchSet: 1 Gerrit-Owner: Subrata Banik <subrata.banik(a)intel.com> Gerrit-MessageType: newchange

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Change in coreboot[master]: arch/x86: Add postcar_frame_add_ramcache() API
by Subrata Banik (Code Review) 10 Jun '23

10 Jun '23

Subrata Banik has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/34805 ) Change subject: arch/x86: Add postcar_frame_add_ramcache() API ...................................................................... arch/x86: Add postcar_frame_add_ramcache() API This patch adds new API for intermediate caching top_of_ram and setting up required MTRR for next stage. Change-Id: Iddafb573afb4799de64754a94816d7f3f2f4982f Signed-off-by: Subrata Banik <subrata.banik(a)intel.com> --- M src/arch/x86/include/arch/cpu.h M src/arch/x86/postcar_loader.c 2 files changed, 30 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/05/34805/1 diff --git a/src/arch/x86/include/arch/cpu.h b/src/arch/x86/include/arch/cpu.h index 293ca02..7dc4049 100644 --- a/src/arch/x86/include/arch/cpu.h +++ b/src/arch/x86/include/arch/cpu.h @@ -329,6 +329,13 @@ void postcar_frame_add_romcache(struct postcar_frame *pcf, int type); /* + * Add variable MTRR covering the Top of RAM with given MTRR type. + */ +void postcar_frame_add_ramcache(struct postcar_frame *pcf, + uintptr_t addr, size_t size, int type); + + +/* * Push used MTRR and Max MTRRs on to the stack * and return pointer to stack top. */ diff --git a/src/arch/x86/postcar_loader.c b/src/arch/x86/postcar_loader.c index 35e139f..8a1f6cb 100644 --- a/src/arch/x86/postcar_loader.c +++ b/src/arch/x86/postcar_loader.c @@ -120,6 +120,29 @@ postcar_frame_add_mtrr(pcf, CACHE_ROM_BASE, CACHE_ROM_SIZE, type); } +/* + * Make sure we are enabling intermediate caching to speed up next stage + * (postcar/romstage) loading and decompression as we are still in romstage + * and CAR tear down will be handled by next stage at its entry. + */ +static void enable_top_of_ram_cache(uintptr_t base, size_t size) +{ + int mtrr = get_free_var_mtrr(); + + if (mtrr == -1) + return; + + set_var_mtrr(mtrr, base, size, MTRR_TYPE_WRPROT); +} + +void postcar_frame_add_ramcache(struct postcar_frame *pcf, + uintptr_t addr, size_t size, int type) +{ + /* enable intermediate caching for Top of RAM */ + enable_top_of_ram_cache(addr, size); + postcar_frame_add_mtrr(pcf, addr, size, type); +} + void *postcar_commit_mtrrs(struct postcar_frame *pcf) { /* -- To view, visit https://review.coreboot.org/c/coreboot/+/34805 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: Iddafb573afb4799de64754a94816d7f3f2f4982f Gerrit-Change-Number: 34805 Gerrit-PatchSet: 1 Gerrit-Owner: Subrata Banik <subrata.banik(a)intel.com> Gerrit-MessageType: newchange

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Change in ...coreboot[master]: mb/lenovo: Add Lenovo Thinkpad Helix
by Christoph Pomaska (Code Review) 10 Jun '23

10 Jun '23

Christoph Pomaska has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/33867 Change subject: mb/lenovo: Add Lenovo Thinkpad Helix ...................................................................... mb/lenovo: Add Lenovo Thinkpad Helix This port was originally generated by autoport, but has been modified. This device is technically a tablet PC, but the linter rejects 'tablet' in board_info.txt at the moment (TODO). THIS PORT IS UNTESTED YET Change-Id: I7dbf10bc85edb161fce077568d4ef3db91e10db7 Signed-off-by: Christoph Pomaska <github(a)aufmachen.jetzt> --- A src/mainboard/lenovo/helix/Kconfig A src/mainboard/lenovo/helix/Kconfig.name A src/mainboard/lenovo/helix/Makefile.inc A src/mainboard/lenovo/helix/acpi/ec.asl A src/mainboard/lenovo/helix/acpi/platform.asl A src/mainboard/lenovo/helix/acpi/superio.asl A src/mainboard/lenovo/helix/acpi_tables.c A src/mainboard/lenovo/helix/board_info.txt A src/mainboard/lenovo/helix/devicetree.cb A src/mainboard/lenovo/helix/dock.c A src/mainboard/lenovo/helix/dsdt.asl A src/mainboard/lenovo/helix/gma-mainboard.ads A src/mainboard/lenovo/helix/gpio.c A src/mainboard/lenovo/helix/hda_verb.c A src/mainboard/lenovo/helix/mainboard.c A src/mainboard/lenovo/helix/romstage.c A src/mainboard/lenovo/helix/smihandler.c 17 files changed, 921 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/67/33867/1 diff --git a/src/mainboard/lenovo/helix/Kconfig b/src/mainboard/lenovo/helix/Kconfig new file mode 100644 index 0000000..5f97a0e --- /dev/null +++ b/src/mainboard/lenovo/helix/Kconfig @@ -0,0 +1,46 @@ +if BOARD_LENOVO_THINKPAD_HELIX + +config BOARD_SPECIFIC_OPTIONS + def_bool y + select BOARD_ROMSIZE_KB_12288 + select EC_LENOVO_H8 + select EC_LENOVO_PMH7 + select HAVE_ACPI_RESUME + select HAVE_ACPI_TABLES + select INTEL_INT15 + select MAINBOARD_HAS_LIBGFXINIT # FIXME: check this + select NORTHBRIDGE_INTEL_SANDYBRIDGE + select SERIRQ_CONTINUOUS_MODE + select SOUTHBRIDGE_INTEL_C216 + select SYSTEM_TYPE_LAPTOP + select USE_NATIVE_RAMINIT + select GFX_GMA_INTERNAL_IS_EDP + +config MAINBOARD_DIR + string + default lenovo/helix + +config MAINBOARD_PART_NUMBER + string + default "ThinkPad Helix" + +config VGA_BIOS_FILE + string + default "pci8086,0166.rom" + +config VGA_BIOS_ID + string + default "8086,0166" + +config DRAM_RESET_GATE_GPIO # FIXME: check this + int + default 10 + +config MAX_CPUS + int + default 8 + +config USBDEBUG_HCD_INDEX # FIXME: check this + int + default 2 +endif diff --git a/src/mainboard/lenovo/helix/Kconfig.name b/src/mainboard/lenovo/helix/Kconfig.name new file mode 100644 index 0000000..d36682b --- /dev/null +++ b/src/mainboard/lenovo/helix/Kconfig.name @@ -0,0 +1,2 @@ +config BOARD_LENOVO_THINKPAD_HELIX + bool "ThinkPad Helix" diff --git a/src/mainboard/lenovo/helix/Makefile.inc b/src/mainboard/lenovo/helix/Makefile.inc new file mode 100644 index 0000000..333f63a --- /dev/null +++ b/src/mainboard/lenovo/helix/Makefile.inc @@ -0,0 +1,4 @@ +romstage-y += gpio.c +ramstage-y += dock.c +ramstage-$(CONFIG_MAINBOARD_USE_LIBGFXINIT) += gma-mainboard.ads +smm-y += smihandler.c diff --git a/src/mainboard/lenovo/helix/acpi/ec.asl b/src/mainboard/lenovo/helix/acpi/ec.asl new file mode 100644 index 0000000..c3569e8 --- /dev/null +++ b/src/mainboard/lenovo/helix/acpi/ec.asl @@ -0,0 +1 @@ +#include <ec/lenovo/h8/acpi/ec.asl> diff --git a/src/mainboard/lenovo/helix/acpi/platform.asl b/src/mainboard/lenovo/helix/acpi/platform.asl new file mode 100644 index 0000000..1340cd7 --- /dev/null +++ b/src/mainboard/lenovo/helix/acpi/platform.asl @@ -0,0 +1,28 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Christoph Pomaska <github(a)aufmachen.jetzt> + * + * 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. + */ + + +Method(_WAK,1) +{ + /* ME may not be up yet. */ + Store (0, \_TZ.MEB1) + Store (0, \_TZ.MEB2) + Return(Package(){0,0}) +} + +Method(_PTS,1) +{ + \_SB.PCI0.LPCB.EC.RADI(0) +} diff --git a/src/mainboard/lenovo/helix/acpi/superio.asl b/src/mainboard/lenovo/helix/acpi/superio.asl new file mode 100644 index 0000000..f2b35ba --- /dev/null +++ b/src/mainboard/lenovo/helix/acpi/superio.asl @@ -0,0 +1 @@ +#include <drivers/pc80/pc/ps2_controller.asl> diff --git a/src/mainboard/lenovo/helix/acpi_tables.c b/src/mainboard/lenovo/helix/acpi_tables.c new file mode 100644 index 0000000..6b731cc --- /dev/null +++ b/src/mainboard/lenovo/helix/acpi_tables.c @@ -0,0 +1,36 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008-2009 coresystems GmbH + * 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 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 <southbridge/intel/bd82x6x/nvs.h> + +/* FIXME: check this function. */ +void acpi_create_gnvs(global_nvs_t *gnvs) +{ + /* Disable USB ports in S3 by default */ + gnvs->s3u0 = 0; + gnvs->s3u1 = 0; + + /* Disable USB ports in S5 by default */ + gnvs->s5u0 = 0; + gnvs->s5u1 = 0; + + // the lid is open by default. + gnvs->lids = 1; + + gnvs->tcrt = 100; + gnvs->tpsv = 90; +} diff --git a/src/mainboard/lenovo/helix/board_info.txt b/src/mainboard/lenovo/helix/board_info.txt new file mode 100644 index 0000000..a7c651b --- /dev/null +++ b/src/mainboard/lenovo/helix/board_info.txt @@ -0,0 +1,6 @@ +Category: laptop +ROM protocol: SPI +Flashrom support: ? +ROM package: SOIC8 +ROM socketed: n +Release year: 2013 diff --git a/src/mainboard/lenovo/helix/devicetree.cb b/src/mainboard/lenovo/helix/devicetree.cb new file mode 100644 index 0000000..d5a6dd9 --- /dev/null +++ b/src/mainboard/lenovo/helix/devicetree.cb @@ -0,0 +1,166 @@ +chip northbridge/intel/sandybridge # FIXME: check gfx.ndid and gfx.did + register "gfx.did" = "{ 0x80000100, 0x80000240, 0x80000410 }" + register "gfx.link_frequency_270_mhz" = "0" + register "gfx.ndid" = "3" + register "gfx.use_spread_spectrum_clock" = "1" + register "gpu_cpu_backlight" = "0x00001156" + register "gpu_dp_b_hotplug" = "4" + register "gpu_dp_c_hotplug" = "4" + register "gpu_dp_d_hotplug" = "4" + register "gpu_panel_port_select" = "1" + register "gpu_panel_power_backlight_off_delay" = "1" + register "gpu_panel_power_backlight_on_delay" = "1" + register "gpu_panel_power_cycle_delay" = "6" + register "gpu_panel_power_down_delay" = "500" + register "gpu_panel_power_up_delay" = "2000" + register "gpu_pch_backlight" = "0x11561156" + device cpu_cluster 0x0 on + chip cpu/intel/model_206ax # FIXME: check all registers + register "c1_acpower" = "1" + register "c1_battery" = "1" + register "c2_acpower" = "3" + register "c2_battery" = "3" + register "c3_acpower" = "5" + register "c3_battery" = "5" + device lapic 0x0 on + end + device lapic 0xacac off + end + end + end + device domain 0x0 on + chip southbridge/intel/bd82x6x # Intel Series 6 Cougar Point PCH + register "c2_latency" = "0x0065" + register "docking_supported" = "1" + register "gen1_dec" = "0x007c1601" + register "gen2_dec" = "0x000c15e1" + register "gen3_dec" = "0x00000000" + register "gen4_dec" = "0x000c06a1" + register "gpi13_routing" = "2" + register "gpi1_routing" = "2" + register "p_cnt_throttling_supported" = "1" + register "pcie_hotplug_map" = "{ 1, 0, 0, 0, 0, 0, 0, 0 }" + register "pcie_port_coalesce" = "1" + register "sata_interface_speed_support" = "0x3" + register "sata_port_map" = "0x1" + register "spi_lvscc" = "0x2005" + register "spi_uvscc" = "0x2005" + register "superspeed_capable_ports" = "0x0000000b" + register "xhci_overcurrent_mapping" = "0x04000201" + register "xhci_switchable_ports" = "0x0000000b" + device pci 14.0 on # USB 3.0 Controller + subsystemid 0x17aa 0x2207 + end + device pci 16.0 on # Management Engine Interface 1 + subsystemid 0x17aa 0x2207 + end + device pci 16.1 off # Management Engine Interface 2 + end + device pci 16.2 off # Management Engine IDE-R + end + device pci 16.3 off # Management Engine KT + end + device pci 19.0 off # Intel Gigabit Ethernet + end + device pci 1a.0 on # USB2 EHCI #2 + subsystemid 0x17aa 0x2207 + end + device pci 1b.0 on # High Definition Audio Audio controller + subsystemid 0x17aa 0x2207 + end + device pci 1c.0 on # PCIe Port #1 + subsystemid 0x17aa 0x2207 + end + device pci 1c.1 on # PCIe Port #2 + subsystemid 0x17aa 0x2207 + end + device pci 1c.2 off # PCIe Port #3 + end + device pci 1c.3 off # PCIe Port #4 + end + device pci 1c.4 off # PCIe Port #5 + end + device pci 1c.5 off # PCIe Port #6 + end + device pci 1c.6 off # PCIe Port #7 + end + device pci 1c.7 off # PCIe Port #8 + end + device pci 1d.0 on # USB2 EHCI #1 + subsystemid 0x17aa 0x2207 + end + device pci 1e.0 off # PCI bridge + end + device pci 1f.0 on # LPC bridge PCI-LPC bridge + subsystemid 0x17aa 0x2207 + chip ec/lenovo/pmh7 + register "backlight_enable" = "0x01" + register "dock_event_enable" = "0x01" + device pnp ff.1 on # dummy + end + end + chip ec/lenovo/h8 # FIXME: has_keyboard_backlight, has_power_management_beeps, has_uwb + register "beepmask0" = "0x00" + register "beepmask1" = "0x86" + register "config0" = "0xa6" + register "config1" = "0x29" + register "config2" = "0xa1" + register "config3" = "0xc0" + register "event2_enable" = "0xff" + register "event3_enable" = "0xff" + register "event4_enable" = "0xf0" + register "event5_enable" = "0x3c" + register "event7_enable" = "0x01" + register "event8_enable" = "0x7b" + register "event9_enable" = "0xff" + register "eventb_enable" = "0x80" + register "eventc_enable" = "0xff" + register "eventd_enable" = "0xff" + register "evente_enable" = "0x1d" + device pnp ff.2 on # dummy + io 0x60 = 0x62 + io 0x62 = 0x66 + io 0x64 = 0x1600 + io 0x66 = 0x1604 + end + end + end + device pci 1f.2 on # SATA Controller 1 + subsystemid 0x17aa 0x2207 + end + device pci 1f.3 on # SMBus + subsystemid 0x17aa 0x2207 + chip drivers/i2c/at24rf08c # eeprom, 8 virtual devices, same chip + device i2c 54 on + end + device i2c 55 on + end + device i2c 56 on + end + device i2c 57 on + end + device i2c 5c on + end + device i2c 5d on + end + device i2c 5e on + end + device i2c 5f on + end + end + end + device pci 1f.5 off # SATA Controller 2 + end + device pci 1f.6 off # Thermal + end + end + device pci 00.0 on # Host bridge Host bridge + subsystemid 0x17aa 0x2207 + end + device pci 01.0 off # PCIe Bridge for discrete graphics + end + device pci 02.0 on # Internal graphics VGA controller + subsystemid 0x17aa 0x2207 + end + end +end diff --git a/src/mainboard/lenovo/helix/dock.c b/src/mainboard/lenovo/helix/dock.c new file mode 100644 index 0000000..df84d02 --- /dev/null +++ b/src/mainboard/lenovo/helix/dock.c @@ -0,0 +1,23 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Christoph Pomaska <github(a)aufmachen.jetzt> + * + * 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 <ec/lenovo/h8/h8.h> + +void h8_mainboard_init_dock(void) +{ +/* FIXME: fill this if needed. */ +} diff --git a/src/mainboard/lenovo/helix/dsdt.asl b/src/mainboard/lenovo/helix/dsdt.asl new file mode 100644 index 0000000..4a55d4f --- /dev/null +++ b/src/mainboard/lenovo/helix/dsdt.asl @@ -0,0 +1,48 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Christoph Pomaska <github(a)aufmachen.jetzt> + * + * 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. + */ + + +#define BRIGHTNESS_UP \_SB.PCI0.GFX0.INCB +#define BRIGHTNESS_DOWN \_SB.PCI0.GFX0.DECB +#define ACPI_VIDEO_DEVICE \_SB.PCI0.GFX0 +#define EC_LENOVO_H8_ME_WORKAROUND 1 +#define THINKPAD_EC_GPE 17 + +#include <arch/acpi.h> +DefinitionBlock( + "dsdt.aml", + "DSDT", + 0x02, // DSDT revision: ACPI 2.0 and up + OEM_ID, + ACPI_TABLE_CREATOR, + 0x20141018 // OEM revision +) +{ + /* Some generic macros */ + #include "acpi/platform.asl" + #include <cpu/intel/common/acpi/cpu.asl> + #include <southbridge/intel/bd82x6x/acpi/platform.asl> + /* global NVS and variables. */ + #include <southbridge/intel/bd82x6x/acpi/globalnvs.asl> + #include <southbridge/intel/bd82x6x/acpi/sleepstates.asl> + + Device (\_SB.PCI0) + { + #include <northbridge/intel/sandybridge/acpi/sandybridge.asl> + #include <drivers/intel/gma/acpi/default_brightness_levels.asl> + #include <southbridge/intel/bd82x6x/acpi/pch.asl> + } +} diff --git a/src/mainboard/lenovo/helix/gma-mainboard.ads b/src/mainboard/lenovo/helix/gma-mainboard.ads new file mode 100644 index 0000000..ce27742 --- /dev/null +++ b/src/mainboard/lenovo/helix/gma-mainboard.ads @@ -0,0 +1,35 @@ +-- +-- This file is part of the coreboot project. +-- +-- 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; either version 2 of the License, or +-- (at your option) any later version. +-- +-- 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. +-- + +with HW.GFX.GMA; +with HW.GFX.GMA.Display_Probing; + +use HW.GFX.GMA; +use HW.GFX.GMA.Display_Probing; + +private package GMA.Mainboard is + + -- FIXME: check this + ports : constant Port_List := + (DP1, + DP2, + DP3, + HDMI1, + HDMI2, + HDMI3, + Analog, + Internal, + others => Disabled); + +end GMA.Mainboard; diff --git a/src/mainboard/lenovo/helix/gpio.c b/src/mainboard/lenovo/helix/gpio.c new file mode 100644 index 0000000..b1dcb0a --- /dev/null +++ b/src/mainboard/lenovo/helix/gpio.c @@ -0,0 +1,239 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008-2009 coresystems GmbH + * 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 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 <southbridge/intel/common/gpio.h> + +static const struct pch_gpio_set1 pch_gpio_set1_mode = { + .gpio0 = GPIO_MODE_GPIO, + .gpio1 = GPIO_MODE_GPIO, + .gpio2 = GPIO_MODE_GPIO, + .gpio3 = GPIO_MODE_GPIO, + .gpio4 = GPIO_MODE_GPIO, + .gpio5 = GPIO_MODE_GPIO, + .gpio6 = GPIO_MODE_GPIO, + .gpio7 = GPIO_MODE_GPIO, + .gpio8 = GPIO_MODE_GPIO, + .gpio9 = GPIO_MODE_NATIVE, + .gpio10 = GPIO_MODE_GPIO, + .gpio11 = GPIO_MODE_GPIO, + .gpio12 = GPIO_MODE_GPIO, + .gpio13 = GPIO_MODE_GPIO, + .gpio14 = GPIO_MODE_GPIO, + .gpio15 = GPIO_MODE_GPIO, + .gpio16 = GPIO_MODE_GPIO, + .gpio17 = GPIO_MODE_GPIO, + .gpio18 = GPIO_MODE_NATIVE, + .gpio19 = GPIO_MODE_NATIVE, + .gpio20 = GPIO_MODE_NATIVE, + .gpio21 = GPIO_MODE_GPIO, + .gpio22 = GPIO_MODE_GPIO, + .gpio23 = GPIO_MODE_NATIVE, + .gpio24 = GPIO_MODE_GPIO, + .gpio25 = GPIO_MODE_GPIO, + .gpio26 = GPIO_MODE_GPIO, + .gpio27 = GPIO_MODE_GPIO, + .gpio28 = GPIO_MODE_GPIO, + .gpio29 = GPIO_MODE_GPIO, + .gpio30 = GPIO_MODE_NATIVE, + .gpio31 = GPIO_MODE_NATIVE, +}; + +static const struct pch_gpio_set1 pch_gpio_set1_direction = { + .gpio0 = GPIO_DIR_INPUT, + .gpio1 = GPIO_DIR_INPUT, + .gpio2 = GPIO_DIR_INPUT, + .gpio3 = GPIO_DIR_INPUT, + .gpio4 = GPIO_DIR_INPUT, + .gpio5 = GPIO_DIR_INPUT, + .gpio6 = GPIO_DIR_INPUT, + .gpio7 = GPIO_DIR_INPUT, + .gpio8 = GPIO_DIR_OUTPUT, + .gpio10 = GPIO_DIR_OUTPUT, + .gpio11 = GPIO_DIR_INPUT, + .gpio12 = GPIO_DIR_INPUT, + .gpio13 = GPIO_DIR_INPUT, + .gpio14 = GPIO_DIR_INPUT, + .gpio15 = GPIO_DIR_OUTPUT, + .gpio16 = GPIO_DIR_INPUT, + .gpio17 = GPIO_DIR_INPUT, + .gpio21 = GPIO_DIR_INPUT, + .gpio22 = GPIO_DIR_OUTPUT, + .gpio24 = GPIO_DIR_OUTPUT, + .gpio25 = GPIO_DIR_INPUT, + .gpio26 = GPIO_DIR_INPUT, + .gpio27 = GPIO_DIR_INPUT, + .gpio28 = GPIO_DIR_OUTPUT, + .gpio29 = GPIO_DIR_OUTPUT, +}; + +static const struct pch_gpio_set1 pch_gpio_set1_level = { + .gpio8 = GPIO_LEVEL_LOW, + .gpio10 = GPIO_LEVEL_HIGH, + .gpio15 = GPIO_LEVEL_LOW, + .gpio22 = GPIO_LEVEL_HIGH, + .gpio24 = GPIO_LEVEL_LOW, + .gpio28 = GPIO_LEVEL_LOW, + .gpio29 = GPIO_LEVEL_HIGH, +}; + +static const struct pch_gpio_set1 pch_gpio_set1_reset = { + .gpio24 = GPIO_RESET_RSMRST, +}; + +static const struct pch_gpio_set1 pch_gpio_set1_invert = { + .gpio1 = GPIO_INVERT, + .gpio3 = GPIO_INVERT, + .gpio4 = GPIO_INVERT, + .gpio6 = GPIO_INVERT, + .gpio11 = GPIO_INVERT, + .gpio13 = GPIO_INVERT, +}; + +static const struct pch_gpio_set1 pch_gpio_set1_blink = { +}; + +static const struct pch_gpio_set2 pch_gpio_set2_mode = { + .gpio32 = GPIO_MODE_NATIVE, + .gpio33 = GPIO_MODE_GPIO, + .gpio34 = GPIO_MODE_GPIO, + .gpio35 = GPIO_MODE_GPIO, + .gpio36 = GPIO_MODE_GPIO, + .gpio37 = GPIO_MODE_GPIO, + .gpio38 = GPIO_MODE_GPIO, + .gpio39 = GPIO_MODE_GPIO, + .gpio40 = GPIO_MODE_GPIO, + .gpio41 = GPIO_MODE_GPIO, + .gpio42 = GPIO_MODE_GPIO, + .gpio43 = GPIO_MODE_GPIO, + .gpio44 = GPIO_MODE_GPIO, + .gpio45 = GPIO_MODE_GPIO, + .gpio46 = GPIO_MODE_GPIO, + .gpio47 = GPIO_MODE_NATIVE, + .gpio48 = GPIO_MODE_GPIO, + .gpio49 = GPIO_MODE_GPIO, + .gpio50 = GPIO_MODE_GPIO, + .gpio51 = GPIO_MODE_GPIO, + .gpio52 = GPIO_MODE_GPIO, + .gpio53 = GPIO_MODE_GPIO, + .gpio54 = GPIO_MODE_GPIO, + .gpio55 = GPIO_MODE_GPIO, + .gpio56 = GPIO_MODE_GPIO, + .gpio57 = GPIO_MODE_GPIO, + .gpio58 = GPIO_MODE_NATIVE, + .gpio59 = GPIO_MODE_GPIO, + .gpio60 = GPIO_MODE_NATIVE, + .gpio61 = GPIO_MODE_NATIVE, + .gpio62 = GPIO_MODE_NATIVE, + .gpio63 = GPIO_MODE_NATIVE, +}; + +static const struct pch_gpio_set2 pch_gpio_set2_direction = { + .gpio33 = GPIO_DIR_OUTPUT, + .gpio34 = GPIO_DIR_INPUT, + .gpio35 = GPIO_DIR_OUTPUT, + .gpio36 = GPIO_DIR_INPUT, + .gpio37 = GPIO_DIR_INPUT, + .gpio38 = GPIO_DIR_INPUT, + .gpio39 = GPIO_DIR_INPUT, + .gpio40 = GPIO_DIR_INPUT, + .gpio41 = GPIO_DIR_INPUT, + .gpio42 = GPIO_DIR_INPUT, + .gpio43 = GPIO_DIR_OUTPUT, + .gpio44 = GPIO_DIR_INPUT, + .gpio45 = GPIO_DIR_INPUT, + .gpio46 = GPIO_DIR_INPUT, + .gpio48 = GPIO_DIR_INPUT, + .gpio49 = GPIO_DIR_INPUT, + .gpio50 = GPIO_DIR_INPUT, + .gpio51 = GPIO_DIR_OUTPUT, + .gpio52 = GPIO_DIR_OUTPUT, + .gpio53 = GPIO_DIR_OUTPUT, + .gpio54 = GPIO_DIR_INPUT, + .gpio55 = GPIO_DIR_OUTPUT, + .gpio56 = GPIO_DIR_INPUT, + .gpio57 = GPIO_DIR_INPUT, + .gpio59 = GPIO_DIR_INPUT, +}; + +static const struct pch_gpio_set2 pch_gpio_set2_level = { + .gpio33 = GPIO_LEVEL_HIGH, + .gpio35 = GPIO_LEVEL_HIGH, + .gpio43 = GPIO_LEVEL_HIGH, + .gpio51 = GPIO_LEVEL_HIGH, + .gpio52 = GPIO_LEVEL_HIGH, + .gpio53 = GPIO_LEVEL_HIGH, + .gpio55 = GPIO_LEVEL_HIGH, +}; + +static const struct pch_gpio_set2 pch_gpio_set2_reset = { +}; + +static const struct pch_gpio_set3 pch_gpio_set3_mode = { + .gpio64 = GPIO_MODE_GPIO, + .gpio65 = GPIO_MODE_GPIO, + .gpio66 = GPIO_MODE_GPIO, + .gpio67 = GPIO_MODE_GPIO, + .gpio68 = GPIO_MODE_GPIO, + .gpio69 = GPIO_MODE_GPIO, + .gpio70 = GPIO_MODE_GPIO, + .gpio71 = GPIO_MODE_GPIO, + .gpio72 = GPIO_MODE_NATIVE, + .gpio73 = GPIO_MODE_NATIVE, + .gpio74 = GPIO_MODE_NATIVE, + .gpio75 = GPIO_MODE_NATIVE, +}; + +static const struct pch_gpio_set3 pch_gpio_set3_direction = { + .gpio64 = GPIO_DIR_INPUT, + .gpio65 = GPIO_DIR_INPUT, + .gpio66 = GPIO_DIR_INPUT, + .gpio67 = GPIO_DIR_INPUT, + .gpio68 = GPIO_DIR_OUTPUT, + .gpio69 = GPIO_DIR_INPUT, + .gpio70 = GPIO_DIR_INPUT, + .gpio71 = GPIO_DIR_INPUT, +}; + +static const struct pch_gpio_set3 pch_gpio_set3_level = { + .gpio68 = GPIO_LEVEL_HIGH, +}; + +static const struct pch_gpio_set3 pch_gpio_set3_reset = { +}; + +const struct pch_gpio_map mainboard_gpio_map = { + .set1 = { + .mode = &pch_gpio_set1_mode, + .direction = &pch_gpio_set1_direction, + .level = &pch_gpio_set1_level, + .blink = &pch_gpio_set1_blink, + .invert = &pch_gpio_set1_invert, + .reset = &pch_gpio_set1_reset, + }, + .set2 = { + .mode = &pch_gpio_set2_mode, + .direction = &pch_gpio_set2_direction, + .level = &pch_gpio_set2_level, + .reset = &pch_gpio_set2_reset, + }, + .set3 = { + .mode = &pch_gpio_set3_mode, + .direction = &pch_gpio_set3_direction, + .level = &pch_gpio_set3_level, + .reset = &pch_gpio_set3_reset, + }, +}; diff --git a/src/mainboard/lenovo/helix/hda_verb.c b/src/mainboard/lenovo/helix/hda_verb.c new file mode 100644 index 0000000..32f1126 --- /dev/null +++ b/src/mainboard/lenovo/helix/hda_verb.c @@ -0,0 +1,76 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008-2009 coresystems GmbH + * 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 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 <device/azalia_device.h> + +const u32 cim_verb_data[] = { + 0x10ec0269, /* Codec Vendor / Device ID: Realtek */ + 0x17aa2207, /* Subsystem ID */ + + 0x0000000b, /* Number of 4 dword sets */ + /* NID 0x01: Subsystem ID. */ + AZALIA_SUBVENDOR(0x0, 0x17aa2207), + + /* NID 0x12. */ + AZALIA_PIN_CFG(0x0, 0x12, 0x90a60130), + + /* NID 0x14. */ + AZALIA_PIN_CFG(0x0, 0x14, 0x90170110), + + /* NID 0x15. */ + AZALIA_PIN_CFG(0x0, 0x15, 0x03214020), + + /* NID 0x17. */ + AZALIA_PIN_CFG(0x0, 0x17, 0x40008008), + + /* NID 0x18. */ + AZALIA_PIN_CFG(0x0, 0x18, 0x03a19040), + + /* NID 0x19. */ + AZALIA_PIN_CFG(0x0, 0x19, 0x411111f0), + + /* NID 0x1a. */ + AZALIA_PIN_CFG(0x0, 0x1a, 0x411111f0), + + /* NID 0x1b. */ + AZALIA_PIN_CFG(0x0, 0x1b, 0x411111f0), + + /* NID 0x1d. */ + AZALIA_PIN_CFG(0x0, 0x1d, 0x40f6862d), + + /* NID 0x1e. */ + AZALIA_PIN_CFG(0x0, 0x1e, 0x411111f0), + 0x80862806, /* Codec Vendor / Device ID: Intel */ + 0x80860101, /* Subsystem ID */ + + 0x00000004, /* Number of 4 dword sets */ + /* NID 0x01: Subsystem ID. */ + AZALIA_SUBVENDOR(0x3, 0x80860101), + + /* NID 0x05. */ + AZALIA_PIN_CFG(0x3, 0x05, 0x18560010), + + /* NID 0x06. */ + AZALIA_PIN_CFG(0x3, 0x06, 0x18560020), + + /* NID 0x07. */ + AZALIA_PIN_CFG(0x3, 0x07, 0x58560030), +}; + +const u32 pc_beep_verbs[0] = {}; + +AZALIA_ARRAY_SIZES; diff --git a/src/mainboard/lenovo/helix/mainboard.c b/src/mainboard/lenovo/helix/mainboard.c new file mode 100644 index 0000000..040941d --- /dev/null +++ b/src/mainboard/lenovo/helix/mainboard.c @@ -0,0 +1,31 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 Christoph Pomaska <github(a)aufmachen.jetzt> + * + * 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 <device/device.h> +#include <drivers/intel/gma/int15.h> +#include <southbridge/intel/bd82x6x/pch.h> + +static void mainboard_enable(struct device *dev) +{ + /* FIXME: fix those values*/ + install_intel_vga_int15_handler(GMA_INT15_ACTIVE_LFP_INT_LVDS, + GMA_INT15_PANEL_FIT_DEFAULT, + GMA_INT15_BOOT_DISPLAY_DEFAULT, 0); +} + +struct chip_operations mainboard_ops = { + .enable_dev = mainboard_enable, +}; diff --git a/src/mainboard/lenovo/helix/romstage.c b/src/mainboard/lenovo/helix/romstage.c new file mode 100644 index 0000000..ff8bd1d --- /dev/null +++ b/src/mainboard/lenovo/helix/romstage.c @@ -0,0 +1,75 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008-2009 coresystems GmbH + * 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 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. + */ + +/* FIXME: Check if all includes are needed. */ + +#include <stdint.h> +#include <string.h> +#include <timestamp.h> +#include <arch/byteorder.h> +#include <device/mmio.h> +#include <device/pci_ops.h> +#include <device/pnp_ops.h> +#include <console/console.h> +#include <northbridge/intel/sandybridge/sandybridge.h> +#include <northbridge/intel/sandybridge/raminit_native.h> +#include <southbridge/intel/bd82x6x/pch.h> +#include <southbridge/intel/common/gpio.h> + +void pch_enable_lpc(void) +{ + pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x82, 0x3f0f); + pci_write_config16(PCI_DEV(0, 0x1f, 0), 0x80, 0x0010); +} + +void mainboard_rcba_config(void) +{ +} + +const struct southbridge_usb_port mainboard_usb_ports[] = { + { 1, 0, 0 }, + { 1, 2, 1 }, + { 1, 1, 3 }, + { 1, 0, -1 }, + { 1, 1, 2 }, + { 1, 1, -1 }, + { 0, 0, -1 }, + { 1, 0, -1 }, + { 1, 0, -1 }, + { 1, 1, 5 }, + { 0, 0, -1 }, + { 1, 1, -1 }, + { 1, 0, -1 }, + { 1, 0, -1 }, +}; + +void mainboard_early_init(int s3resume) +{ +} + +void mainboard_config_superio(void) +{ +} + +/* FIXME: Put proper SPD map here. */ +void mainboard_get_spd(spd_raw_data *spd, bool id_only) +{ + read_spd(&spd[0], 0x50, id_only); + read_spd(&spd[1], 0x52, id_only); + read_spd(&spd[2], 0x51, id_only); + read_spd(&spd[3], 0x53, id_only); +} diff --git a/src/mainboard/lenovo/helix/smihandler.c b/src/mainboard/lenovo/helix/smihandler.c new file mode 100644 index 0000000..a235c3e --- /dev/null +++ b/src/mainboard/lenovo/helix/smihandler.c @@ -0,0 +1,104 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008-2009 coresystems GmbH + * 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 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 <arch/io.h> +#include <console/console.h> +#include <cpu/x86/smm.h> +#include <ec/acpi/ec.h> +#include <ec/lenovo/h8/h8.h> +#include <delay.h> +#include <southbridge/intel/bd82x6x/pch.h> +#include <southbridge/intel/common/pmutil.h> + +#define GPE_EC_SCI 1 +/* FIXME: check this */ +#define GPE_EC_WAKE 13 + +static void mainboard_smm_init(void) +{ + printk(BIOS_DEBUG, "initializing SMI\n"); + /* Enable 0x1600/0x1600 register pair */ + ec_set_bit(0x00, 0x05); +} + +int mainboard_io_trap_handler(int smif) +{ + static int smm_initialized; + + if (!smm_initialized) { + mainboard_smm_init(); + smm_initialized = 1; + } + + return 0; +} + +static void mainboard_smi_handle_ec_sci(void) +{ + u8 status = inb(EC_SC); + u8 event; + + if (!(status & EC_SCI_EVT)) + return; + + event = ec_query(); + printk(BIOS_DEBUG, "EC event %02x\n", event); +} + +void mainboard_smi_gpi(u32 gpi_sts) +{ + if (gpi_sts & (1 << GPE_EC_SCI)) + mainboard_smi_handle_ec_sci(); +} + +int mainboard_smi_apmc(u8 data) +{ + switch (data) { + case APM_CNT_ACPI_ENABLE: + /* use 0x1600/0x1604 to prevent races with userspace */ + ec_set_ports(0x1604, 0x1600); + /* route EC_SCI to SCI */ + gpi_route_interrupt(GPE_EC_SCI, GPI_IS_SCI); + /* discard all events, and enable attention */ + ec_write(0x80, 0x01); + break; + case APM_CNT_ACPI_DISABLE: + /* we have to use port 0x62/0x66, as 0x1600/0x1604 doesn't + provide a EC query function */ + ec_set_ports(0x66, 0x62); + /* route EC_SCI to SMI */ + gpi_route_interrupt(GPE_EC_SCI, GPI_IS_SMI); + /* discard all events, and enable attention */ + ec_write(0x80, 0x01); + break; + default: + break; + } + return 0; +} + +void mainboard_smi_sleep(u8 slp_typ) +{ + if (slp_typ == 3) { + u8 ec_wake = ec_read(0x32); + /* If EC wake events are enabled, enable wake on EC WAKE GPE. */ + if (ec_wake & 0x14) { + /* Redirect EC WAKE GPE to SCI. */ + gpi_route_interrupt(GPE_EC_WAKE, GPI_IS_SCI); + } + } +} -- To view, visit https://review.coreboot.org/c/coreboot/+/33867 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I7dbf10bc85edb161fce077568d4ef3db91e10db7 Gerrit-Change-Number: 33867 Gerrit-PatchSet: 1 Gerrit-Owner: Christoph Pomaska <github(a)aufmachen.jetzt> Gerrit-MessageType: newchange

6 6

Change in ...coreboot[master]: cpu/amd/microcode: Search all containers
by Paul Menzel (Code Review) 10 Jun '23

10 Jun '23

Paul Menzel has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/30747 Change subject: cpu/amd/microcode: Search all containers ...................................................................... cpu/amd/microcode: Search all containers Currently, it’s aborted if the first file is not found. The commit was only tested with all microcode containers present in CBFS. If only one microcode update container is present, which is not the first, it is skipped. Change the return to continue to traverse all elements. Fixes: 83e4c5613 (cpu/amd/microcode: Update parser to use stock microcode blobs) Change-Id: I5195ff0334cf49cadc25de31822a9f2f2cd90490 Signed-off-by: Paul Menzel <pmenzel(a)molgen.mpg.de> --- M src/cpu/amd/microcode/microcode.c 1 file changed, 1 insertion(+), 1 deletion(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/47/30747/1 diff --git a/src/cpu/amd/microcode/microcode.c b/src/cpu/amd/microcode/microcode.c index e8ab175..622c6db 100644 --- a/src/cpu/amd/microcode/microcode.c +++ b/src/cpu/amd/microcode/microcode.c @@ -214,7 +214,7 @@ spin_unlock(romstage_microcode_cbfs_lock()); #endif #endif - return; + continue; } amd_update_microcode(ucode, ucode_len, equivalent_processor_rev_id); -- To view, visit https://review.coreboot.org/c/coreboot/+/30747 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I5195ff0334cf49cadc25de31822a9f2f2cd90490 Gerrit-Change-Number: 30747 Gerrit-PatchSet: 1 Gerrit-Owner: Paul Menzel <paulepanter(a)users.sourceforge.net> Gerrit-MessageType: newchange

2 1

Change in coreboot[master]: Doc/mb/asus: Add H110M-E/M.2 Documentation
by Pavel Sayekat (Code Review) 10 Jun '23

10 Jun '23

Pavel Sayekat has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/35011 ) Change subject: Doc/mb/asus: Add H110M-E/M.2 Documentation ...................................................................... Doc/mb/asus: Add H110M-E/M.2 Documentation Followed and adapted from the ASRock H110M-DVS Documentation Signed-off-by: Pavel Sayekat <pavelsayekat(a)gmail.com> Change-Id: I6c5aad50b513935eab70b502df1d95fb3413fa6b --- A Documentation/mainboard/asus/h110m-e_m2.md 1 file changed, 136 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/11/35011/1 diff --git a/Documentation/mainboard/asus/h110m-e_m2.md b/Documentation/mainboard/asus/h110m-e_m2.md new file mode 100644 index 0000000..134dca8 --- /dev/null +++ b/Documentation/mainboard/asus/h110m-e_m2.md @@ -0,0 +1,136 @@ +# ASUS H110M-E/M.2 + +This page describes how to run coreboot on the [ASUS H110M-E/M.2]. + +## Required proprietary blobs + +Mainboard is based on Intel Skylake/Kaby Lake processor and H110 Chipset. +Intel company provides [Firmware Support Package (2.0)](../../soc/intel/fsp/index.md) +(intel FSP 2.0) to initialize this generation silicon. Please see this +[document](../../soc/intel/code_development_model/code_development_model.md). + +FSP Information: + +```eval_rst ++-----------------------------+-------------------+-------------------+ +| FSP Project Name | Directory | Specification | ++-----------------------------+-------------------+-------------------+ +| 7th Generation Intel® Core™ | KabylakeFspBinPkg | 2.0 | +| processors and chipsets | | | +| (formerly Kaby Lake) | | | ++-----------------------------+-------------------+-------------------+ +``` + +## Building coreboot + +The following steps set the default parameters for this board to build a +fully working image: + +```bash +make distclean +touch .config +./util/scripts/config --enable VENDOR_ASUS +./util/scripts/config --enable BOARD_ASUS_H110M_E_M2 +./util/scripts/config --enable CONFIG_ADD_FSP_BINARIES +./util/scripts/config --enable CONFIG_FSP_USE_REPO +./util/scripts/config --set-str REALTEK_8168_MACADDRESS "xx:xx:xx:xx:xx:xx" +make olddefconfig +``` + +However, it is strongly advised to use `make menuconfig` afterwards +(or instead), so that you can see all of the settings. + +Use the following command to disable the serial console if debugging +output is not required: + +```bash +./util/scripts/config --disable CONSOLE_SERIAL +``` + +However, a more flexible method is to change the console log level from +within an OS using `util/nvramtool`, or with the `nvramcui` payload. + +Now, run `make` to build the coreboot image. + +## Flashing coreboot + +### Internal programming + +The main SPI flash can be accessed using [flashrom]. By default, only +the BIOS region of the flash is writable. If you wish to change any +other region, such as the Management Engine or firmware descriptor, then +an external programmer is required (unless you find a clever way around +the flash protection). More information about this [here](../../flash_tutorial/index.md). + +### External programming + +The flash chip is a 16 MiB socketed DIP-8 chip. Specifically, it's a +GIgaDevice GD25B128CPIG, whose datasheet can be found [here][GD25B128CPIG]. +The chip is located to the bottom right-hand side of the board. For +a precise location, refer to section 1.3 (Motherboard Layout) of the +[H110M-E/M.2 manual], where the chip is labelled "128Mb BIOS". Take note of +the chip's orientation, remove it from its socket, and flash it with +an external programmer. For reference, the notch in the chip should be +facing towards the bottom of the board. + +## Known issues + +- The VGA port doesn't work. Discrete graphic card is used as primary + device for display output (if CONFIG_ONBOARD_VGA_IS_PRIMARY is not + set). Dynamic switching between iGPU and PEG is not yet supported. + +- SuperIO GPIO pin is used to reset Realtek chip. However, since the + Logical Device 7 (GPIO7, GPIO8) is not initialized, the network + chip is in a reset state all the time. + +## Untested + +- parallel port +- PS/2 keyboard +- PS/2 mouse +- EHCI debug +- TPM +- infrared module +- chassis intrusion header +- chassis speaker header + +## Working + +- integrated graphics init with libgfxinit (see [Known issues](#known-issues)) +- PCIe x1 +- PEG x16 Gen3 +- SATA +- USB +- serial port +- onboard audio +- using `me_cleaner` +- using `flashrom` + +## TODO + +- NCT5539D GPIOs +- onboard network (see [Known issues](#known-issues)) +- S3 suspend/resume +- Wake-on-LAN +- hardware monitor + +## Technology + +```eval_rst ++------------------+--------------------------------------------------+ +| CPU | Intel Skylake/Kaby Lake (LGA1151) | ++------------------+--------------------------------------------------+ +| PCH | Intel Sunrise Point H110 | ++------------------+--------------------------------------------------+ +| Super I/O | Nuvoton NCT5539D | ++------------------+--------------------------------------------------+ +| EC | None | ++------------------+--------------------------------------------------+ +| Coprocessor | Intel Management Engine | ++------------------+--------------------------------------------------+ +``` + +[ASUS H110M-E/M.2]: https://www.asus.com/Motherboards/H110M-E-M-2/overview/ +[GD25B128CPIG]: https://www.gigadevice.com/datasheet/gd25b127d/ [The closest match found] +[flashrom]: https://flashrom.org/Flashrom +[ASUS H110M-E/M.2 manual]: https://dlcdnets.asus.com/pub/ASUS/mb/LGA1151/H110M-E_M2/E11622_H110M-E_M2_… -- To view, visit https://review.coreboot.org/c/coreboot/+/35011 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I6c5aad50b513935eab70b502df1d95fb3413fa6b Gerrit-Change-Number: 35011 Gerrit-PatchSet: 1 Gerrit-Owner: Pavel Sayekat Gerrit-MessageType: newchange

5 12

Change in coreboot[master]: Documentation/soc/intel: Add documentation for MCU update
by Varshit B Pandya (Code Review) 10 Jun '23

10 Jun '23

Varshit B Pandya has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/34657 ) Change subject: Documentation/soc/intel: Add documentation for MCU update ...................................................................... Documentation/soc/intel: Add documentation for MCU update Change-Id: I3deb24550c1f1cd4c7b8082af75115ca174c295a Signed-off-by: Pandya, Varshit B <varshit.b.pandya(a)intel.com> --- A Documentation/soc/intel/ucode_update/Flash_Layout.PNG A Documentation/soc/intel/ucode_update/microcode_update_model.md 2 files changed, 43 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/57/34657/1 diff --git a/Documentation/soc/intel/ucode_update/Flash_Layout.PNG b/Documentation/soc/intel/ucode_update/Flash_Layout.PNG new file mode 100644 index 0000000..ac18977 --- /dev/null +++ b/Documentation/soc/intel/ucode_update/Flash_Layout.PNG Binary files differ diff --git a/Documentation/soc/intel/ucode_update/microcode_update_model.md b/Documentation/soc/intel/ucode_update/microcode_update_model.md new file mode 100644 index 0000000..e2d7f35 --- /dev/null +++ b/Documentation/soc/intel/ucode_update/microcode_update_model.md @@ -0,0 +1,43 @@ +# Microcode update mechanism for devices in field + +## Introduction + +Processor microcode (MCU) is akin to processor firmware. Processors may need updates to their microcode to operate correctly. These updates fix bugs/errata that can cause anything from incorrect processing, to code and data corruption, and system lockups. + +##Problem Statement + +As per chrome design, any field updatable FW has to be first verified by vboot (chrome root of trust - CROT) before it is allowed to run on the system. CROT executes on the CPU, hence FW such as MCU loaded before the CPU reset cannot be verified before it actually gets loaded. As a result today Chromebooks are not able to apply MCU in the field. This proposal tries to address the issue + +Prior to CPU reset, the CPU HW locates the FIT table from the storage, walks over the FIT table and picks-up the MCU that matches the CPU Family, Model, Stepping and PLATFORM ID with the highest revision ID. CPU verifies that MCU is signed by Intel and once verification is successful, it attempts to load the MCU. + +However FIT does not contain any fall back mechanism. If one MCU loading fails for whatever reason, it drops the further loading process and moves on to CPU reset. While it is fairly a remote chance, in case of any failure to load MCU which cause hang like situations before CPU reset, a platform based mechanism can be put in place to enter recovery mode. As detailed below, if we are using BUC register based top swap implementation, then an RTC reset may be required to clear top swap bit. + +## Design Proposal + +The proposal relies on the following Intel SoC features: + +1. Top swap, which enables the BIOS to have 2 bootblocks and bot from either using a RTC backed Top swap control bit in BUC register. +2. Firmware Interface Table (FIT) based MCU loading. + +The idea is to have 2 bootblocks, each having its own FIT table. The FIT in one of them will be configured to point to an MCU in RO firmware, and the FIT in other one will point to a fixed flash region (aka MCU staging area), which will contain an MCU from RW firmware. + +Top-swap feature of Intel CPUs, will be used to switch between 2 bootblocks, based on the bootmode i.e., recovery or normal/developer mode. + +Coreboot will keep the MCU staging area updated with the MCU from the currently selected RW firmware. + +## Implementation Details + +1. Create 2 BBs (bb_ro_ucode and bb_staged_ucode) each containing their own FIT tables. Both bootblocks will be in the RO section. + a. bb_ro_ucode contains a FIT which has pointer to MCU (microcode_blob.bin) which resides in RO section. This is will be used in the recovery scenario. + b. bb_staged_ucode is identical to bb_ro_ucode but contains a FIT which has pointer to a MCU that will reside in a staging area. +2. Create a MCU staging area + a. Reserve a region in the FMAP which is equal to or greater than the MCU size specified in the BWG for that SoC. This is a RW region just lke the RW_MRC_CACHE. + b. MCU from RW-A/RW-B will be copied to this region during boot. + c. A Flash Protected Range (FPR) should be configured to write protect this MCU Staging area. + d. bb_staged_ucode FIT points to the MCU in this staging area. +3. The resulting flash layout is shown below, +**Flash Layout** +![Flash Layout][flash_layout] +[flash_layout]: Flash_Layout.PNG + +4. The proposed design uses the PCR register based control for top-swap -- To view, visit https://review.coreboot.org/c/coreboot/+/34657 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I3deb24550c1f1cd4c7b8082af75115ca174c295a Gerrit-Change-Number: 34657 Gerrit-PatchSet: 1 Gerrit-Owner: Varshit B Pandya <varshit.b.pandya(a)intel.com> Gerrit-MessageType: newchange

6 15

Change in ...coreboot[master]: vendorcode/google: load sar config from CBFS first then VPD
by Marco Chen (Code Review) 10 Jun '23

10 Jun '23

Hello Marco Chen, I'd like you to do a code review. Please visit https://review.coreboot.org/c/coreboot/+/33661 to review the following change. Change subject: vendorcode/google: load sar config from CBFS first then VPD ...................................................................... vendorcode/google: load sar config from CBFS first then VPD SAR config provisioned in RO VPD can be done in the factory only. Once it is wrong, we can override the SAR config by updating FW RW which can carry new SAR config in CBFS. As a result, we should check CBFS first then VPD. Change-Id: I5aa6235fb7a6d0b2ed52893a42f7bd57806af6c1 Signed-off-by: Marco Chen <marcochen(a)chromium.org> --- M src/vendorcode/google/chromeos/sar.c 1 file changed, 23 insertions(+), 22 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/61/33661/1 diff --git a/src/vendorcode/google/chromeos/sar.c b/src/vendorcode/google/chromeos/sar.c index bbcb211..a5a2c3b 100644 --- a/src/vendorcode/google/chromeos/sar.c +++ b/src/vendorcode/google/chromeos/sar.c @@ -82,36 +82,37 @@ sizeof(struct wifi_sar_delta_table); } - /* Try to read the SAR limit entry from VPD */ - if (!vpd_gets(wifi_sar_limit_key, wifi_sar_limit_str, - buffer_size, VPD_ANY)) { - printk(BIOS_ERR, "Error: Could not locate '%s' in VPD.\n", - wifi_sar_limit_key); - - if (!CONFIG(WIFI_SAR_CBFS)) - return -1; - + if (CONFIG(WIFI_SAR_CBFS)) { printk(BIOS_DEBUG, "Checking CBFS for default SAR values\n"); sar_cbfs_len = load_sar_file_from_cbfs( (void *) wifi_sar_limit_str, sar_expected_len); - if (sar_cbfs_len != sar_expected_len) { - printk(BIOS_ERR, "%s has bad len in CBFS\n", - WIFI_SAR_CBFS_FILENAME); - return -1; - } - } else { - /* VPD key "wifi_sar" found. strlen is checked with addition of - * 1 as we have created buffer size 1 char larger for the reason - * mentioned at start of this function itself */ - if (strlen(wifi_sar_limit_str) + 1 != sar_expected_len) { - printk(BIOS_ERR, "WIFI SAR key has bad len in VPD\n"); - return -1; - } + if (sar_cbfs_len == sar_expected_len) + goto done; + + printk(BIOS_ERR, "%s has bad len in CBFS\n", + WIFI_SAR_CBFS_FILENAME); } + /* Try to read the SAR limit entry from VPD */ + if (!vpd_gets(wifi_sar_limit_key, wifi_sar_limit_str, + buffer_size, VPD_ANY)) { + printk(BIOS_ERR, "Error: Could not locate '%s' in VPD.\n", + wifi_sar_limit_key); + return -1; + } + + /* VPD key "wifi_sar" found. strlen is checked with addition of + * 1 as we have created buffer size 1 char larger for the reason + * mentioned at start of this function itself */ + if (strlen(wifi_sar_limit_str) + 1 != sar_expected_len) { + printk(BIOS_ERR, "WIFI SAR key has bad len in VPD\n"); + return -1; + } + +done: /* Decode the heximal encoded string to binary values */ if (hexstrtobin(wifi_sar_limit_str, bin_buffer, bin_buff_adjusted_size) < bin_buff_adjusted_size) { -- To view, visit https://review.coreboot.org/c/coreboot/+/33661 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I5aa6235fb7a6d0b2ed52893a42f7bd57806af6c1 Gerrit-Change-Number: 33661 Gerrit-PatchSet: 1 Gerrit-Owner: Marco Chen <marcochen(a)google.com> Gerrit-Reviewer: Marco Chen <marcochen(a)chromium.org> Gerrit-MessageType: newchange

7 17

Change in ...coreboot[master]: Documentation: Explain DDR3 read training
by Patrick Rudolph (Code Review) 10 Jun '23

10 Jun '23

Patrick Rudolph has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/32334 Change subject: Documentation: Explain DDR3 read training ...................................................................... Documentation: Explain DDR3 read training Add lots of colorful graphics to explain DDR3 read training in detail, what is done inside MCH and what needs to be done on firmware level. Besides read training give a short explenation what DDR3 "FlyBy" is and compare it with DDR2 DIMMs. Besides the SVG all sources files are added. Change-Id: Ib477bd332984c397289404cfc33c65a2d4469257 Signed-off-by: Patrick Rudolph <patrick.rudolph(a)9elements.com> --- M Documentation/getting_started/index.md A Documentation/getting_started/ram_initialization/16delay.dia A Documentation/getting_started/ram_initialization/16delay.svg A Documentation/getting_started/ram_initialization/64delay.dia A Documentation/getting_started/ram_initialization/64delay.svg A Documentation/getting_started/ram_initialization/DRAM_data_clock_lanes_skew.dia A Documentation/getting_started/ram_initialization/DRAM_data_clock_lanes_skew.svg A Documentation/getting_started/ram_initialization/ddr3_flyby.md A Documentation/getting_started/ram_initialization/ddr3_vs_ddr2.dia A Documentation/getting_started/ram_initialization/ddr3_vs_ddr2.svg A Documentation/getting_started/ram_initialization/index.md A Documentation/getting_started/ram_initialization/read_training.dia A Documentation/getting_started/ram_initialization/read_training.svg A Documentation/getting_started/ram_initialization/read_training2.dia A Documentation/getting_started/ram_initialization/read_training2.svg A Documentation/getting_started/ram_initialization/read_training3.dia A Documentation/getting_started/ram_initialization/read_training3.svg A Documentation/getting_started/ram_initialization/read_training_pattern.dia A Documentation/getting_started/ram_initialization/read_training_pattern.svg A Documentation/getting_started/ram_initialization/readtraining.md A Documentation/getting_started/ram_initialization/recv_blocks.dia A Documentation/getting_started/ram_initialization/recv_blocks.svg 22 files changed, 1,989 insertions(+), 0 deletions(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/34/32334/1 diff --git a/Documentation/getting_started/index.md b/Documentation/getting_started/index.md index 52d873e..a265c5d 100644 --- a/Documentation/getting_started/index.md +++ b/Documentation/getting_started/index.md @@ -7,3 +7,4 @@ * [Gerrit Guidelines](gerrit_guidelines.md) * [Documentation License](license.md) * [Writing Documentation](writing_documentation.md) +* [DDR3 memory initialization](ram_initialization/index.md) diff --git a/Documentation/getting_started/ram_initialization/16delay.dia b/Documentation/getting_started/ram_initialization/16delay.dia new file mode 100644 index 0000000..d0e0095 --- /dev/null +++ b/Documentation/getting_started/ram_initialization/16delay.dia Binary files differ diff --git a/Documentation/getting_started/ram_initialization/16delay.svg b/Documentation/getting_started/ram_initialization/16delay.svg new file mode 100644 index 0000000..f661ddd --- /dev/null +++ b/Documentation/getting_started/ram_initialization/16delay.svg @@ -0,0 +1,177 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> +<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN" "http://www.w3.org/TR/2001/PR-SVG-20010719/DTD/svg10.dtd"> +<svg width="38cm" height="18cm" viewBox="366 265 754 351" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> + <g> + <rect style="fill: #ffffff" x="367.719" y="266.052" width="751.775" height="348.316"/> + <rect style="fill: none; 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As every DIMM only needs to terminate the line once at end of PCB, +the DC resistance is much lower as on DDR2 "tree" routing topology, which did +terminate on every IC. + +The disadvantage of "fly-by" is the more complex memory training that needs to +be done to find the DATA lane skew. + +After the skew has been measured, the DATA lanes needs to be delayed by the +memory controller, to make sure all signals are still synchronous to the CLK, +as seen be the memory controller (on READ) or the DRAM (on WRITE). + +![][flyby] + +[flyby]: ddr3_vs_ddr2.svg + +```eval_rst ++---------------------------+------------+----------------+ +| Feature | DDR2 | DDR3 | ++===========================+============+================+ +| Frequency | 200-533 | 400-800 | ++---------------------------+------------+----------------+ +| Routing | complex | easy | ++---------------------------+------------+----------------+ +| Termination DC resistance | very high | low | ++---------------------------+------------+----------------+ +| Memory training | easy | complex | ++---------------------------+------------+----------------+ +``` + diff --git a/Documentation/getting_started/ram_initialization/ddr3_vs_ddr2.dia b/Documentation/getting_started/ram_initialization/ddr3_vs_ddr2.dia new file mode 100644 index 0000000..e4b4d09 --- /dev/null +++ b/Documentation/getting_started/ram_initialization/ddr3_vs_ddr2.dia Binary files differ diff --git a/Documentation/getting_started/ram_initialization/ddr3_vs_ddr2.svg b/Documentation/getting_started/ram_initialization/ddr3_vs_ddr2.svg new file mode 100644 index 0000000..0b8db34 --- /dev/null +++ b/Documentation/getting_started/ram_initialization/ddr3_vs_ddr2.svg @@ -0,0 +1,298 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> +<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN" "http://www.w3.org/TR/2001/PR-SVG-20010719/DTD/svg10.dtd"> +<svg width="17cm" height="10cm" viewBox="507 221 325 192" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> + <g> + <rect style="fill: #ffffff" x="508.366" y="221.748" width="323.85" height="190.069"/> + <rect style="fill: none; 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It is usually done by firmware. +As soon as the skew is known, the DATA lanes can be individually delayed +by a constant rate to synchronize the DATA arriving at the MCH. + +For read training the DIMM is placed into a special mode where it outputs +a known pattern. The pattern looks like this: + +![][pat] + +[pat]: read_training_pattern.svg + +Due to the different skew of the lanes, the data arrives at different times +on the MCH. It's no longer synchronous to the CLK or other DATA lanes: + +![][read1] + +[read1]: read_training.svg + +The MCH must delay the signals to synchronize them again. + +### Delay units +The MCH is able to delay all lanes individually or at once. The delay +circuit inside the MCH consists of a *phase delay unit* and *CLK delay units*. +The *phase delay unit* delays by a fraction of the CLK, while the +*CLK delay unit* delays in multiple of the CLK. + +They can be configured by firmware using registers inside the MCH. + +#### Phase delay +The phase delay unit might look like this: + +![][delay64] + +[delay64]: 64delay.svg + +The phase delay can be adjusted by software by writing a register that selects +the MUX input. In this example the signal can be shifted by 64 1/64 CLKs. + +Applied to the DQS as seen on READ command, the signal can be delayed to be synchronous +to the CLK as seen by the MCH: + +![][read2] + +[read2]: read_training2.svg + + +#### CLK delay +The CLK delay unit might look like this: + +![][delay16] + +[delay16]: 16delay.svg + +The CLK delay can be adjusted by software by writing a register that selects +the MUX input. In this example the signal can be delayed by 16 CLKs. + +Applied to the DQS as seen on READ command, the signal can be delayed to be synchronous +to the other DQS lanes: + +![][read3] + +[read3]: read_training3.svg + +#### Combined delay + +Both units are connected in row for each DQS/DATA lane: + +![][blocks] + +[blocks]: recv_blocks.svg + +For each lane (here 8 + 1), there's a 10bit register allowing to adjust the +delay. + +## Finding the right delay + +Assuming a 1/64th phase delay unit, the firmware guesses the initial skew and then places the phase in the alternating data pattern. It then adjest the phase and measures the sampled value. + +The following algorithm is used: + +1. Samples all lanes using 128 (64 + 1 full CLK) different phase delays. It allows to find the rising edge in the pattern. +2. In the next step the phase delay is reduced by 32 (1/2 CLK) to position the sample in a logic "low". +3. For each lane the delay is reduced by 128 (2 CLKs) until a logic "high" is sampled. That the preamble of the pattern. +4. As next step the delay is increased by 96 (1.5 CLKs) to position at the first falling edge. +5. Multiple samples in the range -0.5 to 0.5 CLKS are done to find the exact point of falling edge. + +Read training has now found the exact delay for each lane and stores the values for the next boot. This feature is known as *Fast Boot* or *MRC cache*. + + +[FlyBy routing]: ddr3_flyby.md diff --git a/Documentation/getting_started/ram_initialization/recv_blocks.dia b/Documentation/getting_started/ram_initialization/recv_blocks.dia new file mode 100644 index 0000000..cf554ae --- /dev/null +++ b/Documentation/getting_started/ram_initialization/recv_blocks.dia Binary files differ diff --git a/Documentation/getting_started/ram_initialization/recv_blocks.svg b/Documentation/getting_started/ram_initialization/recv_blocks.svg new file mode 100644 index 0000000..562d0dd --- /dev/null +++ b/Documentation/getting_started/ram_initialization/recv_blocks.svg @@ -0,0 +1,627 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> +<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN" "http://www.w3.org/TR/2001/PR-SVG-20010719/DTD/svg10.dtd"> +<svg width="36cm" height="36cm" viewBox="165 -414 717 702" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> + <g> + <rect style="fill: #ffffff" x="167" y="-412" width="714" height="699"/> + <rect style="fill: none; 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Change in ...coreboot[master]: arch/x86/mmio: Avoid pointer aliasing in write8()
by Nico Huber (Code Review) 10 Jun '23

10 Jun '23

Nico Huber has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/31945 Change subject: arch/x86/mmio: Avoid pointer aliasing in write8() ...................................................................... arch/x86/mmio: Avoid pointer aliasing in write8() Don't literally dereference a pointer to `char`. Use array indexing instead to avoid aliasing rules. Otherwise, the compiler might treat any memory as clobbered. Change-Id: I441c27e789ad92a8125c92837244474a26250c8a Signed-off-by: Nico Huber <nico.h(a)gmx.de> --- M src/arch/x86/include/arch/mmio.h 1 file changed, 9 insertions(+), 1 deletion(-) git pull ssh://review.coreboot.org:29418/coreboot refs/changes/45/31945/1 diff --git a/src/arch/x86/include/arch/mmio.h b/src/arch/x86/include/arch/mmio.h index f271a97..790b699 100644 --- a/src/arch/x86/include/arch/mmio.h +++ b/src/arch/x86/include/arch/mmio.h @@ -45,7 +45,15 @@ static __always_inline void write8(volatile void *addr, uint8_t value) { - *((volatile uint8_t *)(addr)) = value; + /* + * Don't literally dereference a pointer to `char`. Use array + * indexing instead to avoid aliasing rules. Otherwise, the + * compiler might treat any memory as clobbered. + */ + volatile struct { + uint8_t reg[1]; + } *const ref = addr; + ref->reg[0] = value; } static __always_inline void write16(volatile void *addr, -- To view, visit https://review.coreboot.org/c/coreboot/+/31945 To unsubscribe, or for help writing mail filters, visit https://review.coreboot.org/settings Gerrit-Project: coreboot Gerrit-Branch: master Gerrit-Change-Id: I441c27e789ad92a8125c92837244474a26250c8a Gerrit-Change-Number: 31945 Gerrit-PatchSet: 1 Gerrit-Owner: Nico Huber <nico.h(a)gmx.de> Gerrit-MessageType: newchange

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