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path: root/src/soc/intel/baytrail/lpss.c
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2014-05-12baytrail: Put devices in ACPI mode after setupDuncan Laurie
Make sure reg_script is executed before the device is put into ACPI mode. BUG=chrome-os-partner:24380 BRANCH=none TEST=build and boot rambi from eMMC in ACPI mode Change-Id: I4090babbfc7fb0f3be4da869386e998d87a513ba Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/179896 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/5017 Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins)
2014-05-10baytrail: utilize reg_script_run_on_dev()Aaron Durbin
The inclusion of reg_script_run_on_dev() allows for removing some of the chained reg_scripts just to set up the device context. Use the new reg_script function in those cases. BUG=None BRANCH=None TEST=Built and booted. Didn't see any bizarre dmesg or coreboot console output. Change-Id: I3207449424c1efe92186125004d5aea1bb5ba438 Signed-off-by: Aaron Durbin <adurbin@chromium.og> Reviewed-on: https://chromium-review.googlesource.com/179541 Tested-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Commit-Queue: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/5009 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2014-05-10baytrail: Add support for LPSS and SCC devices in ACPI modeDuncan Laurie
This adds the option to put LPSS and SCC devices into ACPI mode by saving their BAR0 and BAR1 base addresses in a new device NVS structure that is placed at offset 0x1000 within the global NVS table. The Chrome NVS strcture is padded out to 0xf00 bytes so there is a clean offset to work with as it will need to be used by depthcharge to know what addresses devices live at. A few ACPI Mode IRQs are fixed up, DMA1 and DMA2 are swapped and the EMMC 4.5 IRQ is changed to 44. New ACPI code is provided to instantiate the LPSS and SCC devices with the magic HID values from Intel so the kernel drivers can locate and use them. The default is still for devices to be in PCI mode so this does not have any real effect without it being enabled in the mainboard devicetree. Note: this needs the updated IASL compiler which is in the CQ now because it uses the FixedDMA() ACPI operator. BUG=chrome-os-partner:23505,chrome-os-partner:24380 CQ-DEPEND=CL:179459,CL:179364 BRANCH=none TEST=manual tests on rambi device: 1) build and boot with devices still in PCI mode and ensure that nothing is changed 2) enable lpss_acpi_mode and see I2C devices detected by the kernel in ACPI mode. Note that by itself this breaks trackpad probing so that will need to be implemented before it is enabled. 3) enable scc_acpi_mode and see EMMC and SDCard devices detected by the kernel in ACPI mode. Note that this breaks depthcharge use of the EMMC because it is not longer discoverable as a PCI device. Change-Id: I2a007f3c4e0b06ace5172a15c696a8eaad41ed73 Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/179481 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: http://review.coreboot.org/5004 Tested-by: build bot (Jenkins) Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
2014-05-07baytrail: first pass at lpss device initializationAaron Durbin
This commit does the common parts for all LPSS devices that are enabled: enable snoop in IOSF and enable power management. Additionally, the i2c devices are taken out of reset. BUG=chrome-os-partner:23790 BRANCH=None TEST=Built and booted with modified kernel-next. I2C bus devices show up and I see 0x10 on one of the buses. Change-Id: I540caea6a8666f5684dc5cee683a6b085dfac6de Signed-off-by: Aaron Durbin <adurbin@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/176424 Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: http://review.coreboot.org/4969 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>