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path: root/src/soc/amd/cezanne/fch.c
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2022-03-23soc/amd/cezanne: Turn off gpp clock request for disabled devicesRobert Zieba
The current behavior does not actually check if a device is present before enabling the corresponding gpp_clkx_clock_request_mapping bits which may cause issues with L1SS. This change sets the corresponding gpp_clkx_clock_request_mapping to off if the corresponding device is disabled. BUG=b:202252869 TEST=Checked that value of GPP_CLK_CNTRL matched the expected value when devices are enabled/disabled, checked that physically removing a device that is marked as enabled also disables the corresponding clk req BRANCH=guybrush Signed-off-by: Robert Zieba <robertzieba@google.com> Change-Id: I77389372c60bdec572622a3b49484d4789fd4e4c Reviewed-on: https://review.coreboot.org/c/coreboot/+/61259 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-12-20soc/amd/cezanne/fch: disable 48MHz output in S0i3Felix Held
S0i3 is a low power state which reduces the power consumption to about the level of the S3 suspend state where the DRAM is kept in a self- refresh state and most of the rest of the system is powered down. So everything that can be switched off in the S0i3 state should be switched off in order to maximize the standby time. BUG=b:210722314 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: If445f5825dc7b795c95d73c061156cc485421ada Reviewed-on: https://review.coreboot.org/c/coreboot/+/60125 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com> Reviewed-by: Paul Menzel <paulepanter@mailbox.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2021-12-08soc/amd/{cezanne,picasso,stoney,common}: Don't clear PM1 on resumeRaul E Rangel
According to https://uefi.org/specs/ACPI/6.4/04_ACPI_Hardware_Specification/ACPI_Hardware_Specification.html#pm1-event-grouping > For ACPI/legacy systems, when transitioning from the legacy to the G0 > working state this register is cleared by platform firmware prior to > setting the SCI_EN bit (and thus passing control to OSPM). For ACPI > only platforms (where SCI_EN is always set), when transitioning from > either the mechanical off (G3) or soft-off state to the G0 working > state this register is cleared prior to entering the G0 working state. This means we don't want to clear the PM1 register on resume. By clearing it the linux kernel can't correctly increment the wake count when the power button is pressed. The AMD platforms implement the _SWS ACPI methods, but the linux kernel doesn't actually use these methods. BUG=b:172021431 TEST=suspend zork and push power button and verify power button wake_count increments. Verified other wake sources still work. Signed-off-by: Raul E Rangel <rrangel@chromium.org> Change-Id: Iaa886540d90f4751d14837c1485ef50ceca48561 Reviewed-on: https://review.coreboot.org/c/coreboot/+/59929 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2021-10-13src/soc/amd/cezanne: enable clock gatingJulian Schroeder
Enabling clock gating for CGPLL to lower power consumption in S3 and S0i3 states. See also: Cezanne PPR chapter 7, rev 3.03. BUG=b:185273565 TEST=iotools mmio_read32 0xfed80e2c and 0e30 show clk gating enabled and suspend_stress_test works. Change-Id: I33cbdeec62e49db90b680da37e5028df03a9c015 Signed-off-by: Julian Schroeder <julianmarcusschroeder@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/58279 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2021-10-05src/soc to src/superio: Fix spelling errorsMartin Roth
These issues were found and fixed by codespell, a useful tool for finding spelling errors. Signed-off-by: Martin Roth <martin@coreboot.org> Change-Id: Ieafbc93e49fcef198ac6e31fc8a3b708c395e08e Reviewed-on: https://review.coreboot.org/c/coreboot/+/58082 Reviewed-by: Felix Held <felix-coreboot@felixheld.de> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-09-23soc/amd/common/blocks/include: rename gpio_banks.h to gpio.hFelix Held
This brings the AMD SoC GPIO code in line with the Intel SoC code and removes the not really needed suffix. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: Ie2dbec81dfe503869beb2872b01a7475e2b88b33 Reviewed-on: https://review.coreboot.org/c/coreboot/+/57842 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2021-08-30soc/amd/cezanne/fch: implement and use fch_clk_output_48MhzFelix Held
Make sure that the 48MHz clock output that is typically used as a clock source for an I2S audio codec or a Super I/O chip. TEST=On Guybrush before and after this patch the final state of MISC_CLK_CNTL0 is 0x1006044, so BP_X48M0_OUTPUT_EN is set in both cases. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I38be344a95ccf166c344b2bddcb388fea437a4df Reviewed-on: https://review.coreboot.org/c/coreboot/+/56528 Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-05-19soc/amd/cezanne/fch: add PCIe GPP clock generator configuration settingsFelix Held
I'm not 100% sure if this should rather be duplicated from Picasso or commonized. Checked with the docs and this won't be compatible with Stoneyridge and one future product's PPR lacked the corresponding register. Some other chip has a compatible register layout, but a different number of PCIe GPP clock outputs, so the common code would need to use some SoC-dependent defines and possibly a SoC-specific lookup table for the mapping which is also not that great. TEST=Checked Cezanne PPR Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I6b6d0cb8d7eb0288d8a18fcb975dc377b2c6846a Reviewed-on: https://review.coreboot.org/c/coreboot/+/54685 Reviewed-by: Raul Rangel <rrangel@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-05-10soc/amd/cezanne: Force resets to be coldMarshall Dawson
Cezanne must use cold resets. Change the warm reset request to always set TOGGLE_ALL_PWR_GOOD. And, since the bit is sticky across power cycles, set it early for good measure. BUG=b:184281092 TEST=Majolica successfully resets using 0xcf9 Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Change-Id: I7d4ca5665335b20100a5c802d12d79c0d0597ad9 Reviewed-on: https://review.coreboot.org/c/coreboot/+/52982 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
2021-05-09soc/amd/cezanne: Populate PCI_INTR registersRaul E Rangel
This uses the new FSP PCI methods to pull the routing table and populate the pirq data structure. BUG=b:184766519 TEST=Boot guybrush and verify we get Got IRQ 0x1F (disabled) messages Signed-off-by: Raul E Rangel <rrangel@chromium.org> Change-Id: Ie21229cc2fb4fd5b85c0b9e933f7b43af24864b0 Reviewed-on: https://review.coreboot.org/c/coreboot/+/52914 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2021-04-14soc/amd/cezanne/fch: process ACPI PM/GPE and GPIO eventsFelix Held
BUG=b:184549804 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I4ebbe9667d18a96b1a363d0353c612e214699d12 Reviewed-on: https://review.coreboot.org/c/coreboot/+/52273 Reviewed-by: Raul Rangel <rrangel@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-03-22soc/amd/cezanne: Initialize I2CZheng Bao
Add I2C initialization in romstage and ramstage. TEST=To test the I2C connection on Majolica, which doesn't have SPD connection, call the function below after i2c_soc_init is called. i2c_read_bytes(2, 0x4d, addr, data, 1);/* Read out 1 byte one time */ It can get the register values of TMP432B. Or /* Override EC port in ec.h */ #define EC_DATA 0x662 #define EC_SC 0x666 ec_write(0xA9, 0x40); i2c_read_bytes(1, 0x10, addr, data, 2);/* Read out 2 bytes one time */ It can get the register values of CM32181A3OP(ALS). Change-Id: I3a2a1494b44b68e8d8204fba0c90e769e0256e6f Signed-off-by: Zheng Bao <fishbaozi@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/51029 Reviewed-by: Martin Roth <martinroth@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-02-12soc/amd/cezanne: Add PCI IRQ Router definitionsRaul E Rangel
These definitions were identical to picasso. The only thing I changed was that I renamed Misc1 and Misc2 to HPET_L and HPET_H. This change still doesn't write the PCI_IRQ register for all the PCI devices. We need to refactor the picasso pci_gpp code first. TEST=Boot majolica and see FCH IRQs being programmed. Signed-off-by: Raul E Rangel <rrangel@chromium.org> Change-Id: Ic7e637f234d3af426959a9bbd82a0dcf25bb3c8e Reviewed-on: https://review.coreboot.org/c/coreboot/+/50451 Reviewed-by: Mathew King <mathewk@chromium.org> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-02-10soc/amd/cezanne/fch: add HAVE_SMI_HANDLER case to fch_init_acpi_portsFelix Held
Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: Ie7bab29ae8d0e28c392210f8dcbaa4441ca61114 Reviewed-on: https://review.coreboot.org/c/coreboot/+/50454 Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-02-05soc/amd/cezanne/fch: add ACPI I/O port setupFelix Held
The offsets of ACPI_CPU_CONTROL and ACPI_GPE0_BLK match the ones from the reference code, but not the PPR. I've submitted a change request for the PPR, so this mismatch might go away in the future. The case for HAVE_SMI_HANDLER will be implemented in a future patch. If that one ends up being identical to the function in soc/amd/picasso, I'll move it to the common AMD SoC code. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: If80b841df12d351d5a0c1e0d2e7bf1e31b03447f Reviewed-on: https://review.coreboot.org/c/coreboot/+/50270 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2021-01-29soc/amd/cezanne: add empty ramstage FCH supportFelix Held
Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I38c6961b65b89cb57ff80e491bf8973be4e12eeb Reviewed-on: https://review.coreboot.org/c/coreboot/+/50094 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
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