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This patch allows common CSE block to disable HECI1 device using PMC
IPC command `0xA9`.
Select SOC_INTEL_COMMON_BLOCK_HECI1_DISABLE_USING_PMC_IPC config for
Alder Lake to disable HECI1 device using PMC IPC.
Additionally, remove dead code that deals with HECI1 disabling using
in SMM as HECI1 disabling using PMC IPC is simpler solution.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I11a677173fd6fb38f7c09594a653aeea0df1332c
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61458
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
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This patch provides the possible options for SoC users to choose the
applicable interface to make HECI1 function disable at pre-boot.
`SOC_INTEL_COMMON_BLOCK_HECI_DISABLE_USING_SBI` config is used for
disabling heci1 using non-posted sideband write (inside SMM) after
FSP-S sets the postboot_sai attribute. Applicable from CNL PCH onwards.
`SOC_INTEL_COMMON_BLOCK_HECI_DISABLE_USING_PMC_IPC` config is used for
disabling heci1 using PMC IPC command `0xA9`. Applicable from TGL PCH
onwards.
`SOC_INTEL_COMMON_BLOCK_HECI_DISABLE_USING_PCR` config is used for
disabling heci1 using private configuration register (PCR) write.
Applicable for SoC platform prior to CNL PCH.
Additionally, add PID_CSME0 macro for SKL, Xeon_SP and APL to fix the
compilation failure.
Finally, rename heci_disable() function to heci1_disable() to make it
more meaningful.
BUG=none
TEST=Able to build and boot brya.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I7e0bab0004013b999ec1e054310763427d7b9348
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61431
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
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Since Tiger Lake platform, the HECI1 device can be disabled on
Alder Lake platform using two different mechanism:
A. Using PMC IPC command 0xA9.
B. Sending SBI message under SMM.
In current scope of Alder Lake the default implementation is using
(B) sending sbi message under SMM. A follow up patch to add the
possible options and let platform to choose the applicable one.
List of changes:
1. Drop `HeciEnabled` from dt and dt chip configuration.
2. Replace all logic that disables HECI1 based on the `HeciEnabled`
chip config with `DISABLE_HECI1_AT_PRE_BOOT` config.
3. Default enable HECI1 device in `chipset.cb` to ensure the HECI1
device can undergo the PCI enumeration and later based on the
mainboard policy the HECI1 device can be disabled.
Mainboards that choose to make HECI1 enable during boot don't override
`DISABLE_HECI1_AT_PRE_BOOT` config.
Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: Ie673e634fbc0bdece419c379d417b08dfb4819e2
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60731
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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If a power button SMI is triggered between where it is currently
enabled and before FSP-S exits, when the SMI handler disables
bus mastering for all devices, it inadvertently also disables
the PMC's I/O decoding, so the register write to actually go into
S5 does not succeed, and the system hangs.
This can be solved by skipping the PMC when disabling bus
mastering in the SMI handler, for which a callback,
smihandler_soc_disable_busmaster is provided.
BUG=b:186194102, b:186815114
TEST=Power on the system and pressing power button repeatedly doesn't
cause the system hang during shutdown.
Change-Id: I1cf5cf91ebad4a49df6679e01fc88ff60c81526c
Signed-off-by: Kane Chen <kane.chen@intel.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/52873
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
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List of changes:
1. Add required SoC programming till ramstage
2. Include only required headers into include/soc
3. Add CPU, PCH and SA EDS document number and chapter number
4. Fill required FSP-S UPD to call FSP-S API
Change-Id: I3394f585d66b14ece67cde9e45ffa1177406f35f
Signed-off-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45759
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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