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Add PLL and clock init code, frequency meter and APIs for raising
little CPU frequency and set tvdpll frequency.
TEST=build pass and driver init ok
BUG=b:317009620
Signed-off-by: Guangjie Song <guangjie.song@mediatek.corp-partner.google.com>
Change-Id: Icac99fb210c87c8b7b14af627fbd2f14e4c47240
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84495
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Yidi Lin <yidilin@google.com>
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Add PCIe driver for MT8196 platform.
According to the PCIe CEM specification, the deassertion of PERST#
should occur at least 100ms after the assertion. To ensure the 100ms
delay requirement is met and to save delay time in the ramstage, add
an early init data region to store the elapsed time since assertion.
This will speed up the boot time by 100ms.
PCIe port 1 and port 2 share the same PCIe resources, but PCIe port 2 is
not used. Therefore, in mtk_pcie_pre_init(), make sure PCIe port 2 is
reset to prevent interference with PCIe port 1.
TEST=Build pass, show pcie init pass log:
mtk_pcie_domain_enable: PCIe link up success (1)
BUG=b:317009620
Signed-off-by: Jianjun Wang <jianjun.wang@mediatek.com>
Change-Id: I826a96822e88972bcd4966b6681797a646adf3d6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/84696
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Yidi Lin <yidilin@google.com>
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Add watchdog support for MT8196.
TEST=build pass and WDT uart log
BUG=b:317009620
Change-Id: I9d5e71aa27d469855c2bd65abc5309d69a018750
Signed-off-by: Jarried Lin <jarried.lin@mediatek.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83926
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yidi Lin <yidilin@google.com>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
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Add new folder and basic drivers for Mediatek SoC 'MT8196'.
Refer to MT8196_Chromebook_Application_Processor_Datasheet_V1.0 for
MT8196 SPEC detail.
This patch also enables UART and ARM arch timer.
TEST=saw the coreboot uart log to bootblock
BUG=b:317009620
Change-Id: I8190253ed000db879b04a806ca0bdf29c14be806
Signed-off-by: Jarried Lin <jarried.lin@mediatek.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/83572
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yidi Lin <yidilin@google.com>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
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