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2022-03-18soc/mediatek/mt8186: Disable unused spm_thermalRex-BC Chen
In MT8186, we need to disable spm_thermal to prevent it from influencing other wdt status. There are two hardware pathes which are used for asserting watchdog from thermal. We can disable status of path 1 because status of path 2 is used. 1. Thermal -> SPM -> WDT 2. Thermal -> WDT Spm_thermal (path 1) is a flexible option for software control, and the hardware designer suggests that we should disable it if we don't use it. BUG=none TEST=build pass Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Change-Id: I0ffde6bad3000a64e3b5782edaa72c62da034302 Reviewed-on: https://review.coreboot.org/c/coreboot/+/62890 Reviewed-by: Yu-Ping Wu <yupingso@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-12-14soc/mediatek/mt8186: add tracker dumpRex-BC Chen
Tracker is a debugging tool, and MT8186 only supports AP tracker. When bus timeout occurs, the system reboots and latches some values which could be used for debugging. This function will be triggered only when it encounters the bug hanging issue. BUG=b:202871018 TEST=range of registers are dumped as expected. Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Change-Id: Ie023de2a6f7421a16b2516baa0bf0bf6fff589e2 Reviewed-on: https://review.coreboot.org/c/coreboot/+/59990 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2021-11-15soc/mediatek/mt8186: add GIC pre-initialization functionRex-BC Chen
GIC (generic interrupt controller) defines architectural requirements for handling all interrupt sources and common interrupt controller programming interface. GIC needs to be pre-initialized on MT8186, so we add this initialize function. TEST=build pass BUG=b:202871018 Change-Id: I6bf439d0d9e1ca7130a69b9006b957afca8b133c Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/59252 Reviewed-by: Yu-Ping Wu <yupingso@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-11-05soc/mediatek/mt8186: Enable and initialize EINTRex-BC Chen
EINT event mask register is used to mask EINT wakeup source. All wakeup sources are masked by default. Since most MediaTek SoCs do not have this design, we can't modify the kernel EINT upstream driver to solve the issue 'Can't wake using power button (cros_ec) or touchpad'. So we add a driver here to unmask all wakeup sources. TEST=build pass BUG=b:202871018 Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Change-Id: I84946c2c74dd233419cb94f013a42c734363baf7 Reviewed-on: https://review.coreboot.org/c/coreboot/+/58938 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2021-11-05soc/mediatek/mt8186: Add PLL and clock init supportChun-Jie Chen
Add PLL and clock init code, frequency meter and APIs for raising little CPU/CCI frequency. TEST=build pass BUG=b:202871018 Signed-off-by: Chun-Jie Chen <chun-jie.chen@mediatek.com> Change-Id: Id46d0708e7ba0c1a4043a5dce33ef69421cb59c5 Reviewed-on: https://review.coreboot.org/c/coreboot/+/58936 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com>
2021-11-03soc/mediatek/mt8186: Initialize watchdogRex-BC Chen
MT8186 requires writing speical value to mode register to clear status register. The flow of clear status is different from other platforms, so we override mtk_wdt_clr_status() for MT8186. TEST=build pass BUG=b:202871018 Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Change-Id: I290b69573a8e58db76814e16b5c17c23413f1108 Reviewed-on: https://review.coreboot.org/c/coreboot/+/58835 Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.corp-partner.google.com> Reviewed-by: Yu-Ping Wu <yupingso@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-11-03soc/mediatek/mt8186: Add a stub implementation of the MT8186 SoCRex-BC Chen
Add new folder and basic drivers for Mediatek SoC 'MT8186'. Difference of modules including in this patch between MT8186 and existing SoCs: Timer: Similar to MT8195, MT8186 uses v2 timer. EMI/PLL/SPI: Different from existing SoCs. TEST=boot from SPI-NOR and show uart log on MT8186 EVB BUG=b:200134633 Signed-off-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Change-Id: I579f79c15f4bf5e1daf6b35c70cfd00a985a0b81 Reviewed-on: https://review.coreboot.org/c/coreboot/+/58640 Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.corp-partner.google.com> Reviewed-by: Yu-Ping Wu <yupingso@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>