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path: root/src/soc/mediatek/mt8183/emi.c
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2020-04-05soc/mediatek: Use SPDX for GPL-2.0-only filesAngel Pons
Done with sed and God Lines. Only done for C-like code for now. Change-Id: I7c3c75eaf2d7a64e7d833541bcf168b93921a142 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40132 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
2020-03-18soc/mediatek/mt8183: Improve the AC timing of DRAMCHuayang Duan
Set more AC timing items to make the system more stable. BUG=none BRANCH=kukui TEST=Boots correctly on Kukui Change-Id: Ibd003582a3ffab1ae91f6378651c2c9e585c4676 Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39314 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2020-03-18soc: Remove copyright noticesPatrick Georgi
They're listed in AUTHORS and often incorrect anyway, for example: - What's a "Copyright $year-present"? - Which incarnation of Google (Inc, LLC, ...) is the current copyright holder? - People sometimes have their editor auto-add themselves to files even though they only deleted stuff - Or they let the editor automatically update the copyright year, because why not? - Who is the copyright holder "The coreboot project Authors"? - Or "Generated Code"? Sidestep all these issues by simply not putting these notices in individual files, let's list all copyright holders in AUTHORS instead and use the git history to deal with the rest. Change-Id: I4c110f60b764c97fab2a29f6f04680196f156da5 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39610 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: David Hendricks <david.hendricks@gmail.com>
2020-03-06soc/mediatek/mt8183: Do TX tracking for DRAM DVFS featureHuayang Duan
The TX window will offset to edge during DVFS switch, which may cause TX data transmission error and random kernel crash. Therefore, use the standard dqsosc (DQS Oscillator) for TX window tracking. BUG=b:142358843 BRANCH=kukui TEST=Boots correctly on Kukui Change-Id: Idcf9213a488e795df3faf64b03588cfe55cb2f81 Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37996 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2020-03-06soc/mediatek/mt8183: Correct EMI bandwidth threshold for DVFS switchHuayang Duan
Because eMCP and discrete DDR devices have different DVFS tables, their EMI bandwidth thresholds should also be different. When the EMI total bandwidth reaches the threshold, the system will notify DVFS module to perform DVFS switch for system performance in low power states. This patch increases the threshold from 0xa to 0xd for eMCP DDR devices so that DVFS switch will be less likely to happen. The register table of EMI_BWCT0 is incorrect in the datasheet. According to the hardware design, BW_2ND_INT_BW_THR should be in bits [30:24] instead of [22:16]. However, the logic in DRAM driver is correct, aligned with the hardware design, so we don't need to correct it. BRANCH=kukui BUG=b:142358843 TEST=bootup pass Change-Id: I82c3c70bcd90df3fdd613c0353aba0f176bc82bc Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/39034 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2020-02-25soc/mediatek/mt8183: Fix programming error of DRAMC settingHuayang Duan
1. The ac timing of 2400Mbps should use diff params with 1600Mbps. 2. Fix the typo error of save shuffle function for DVFS. BRANCH=kukui BUG=none TEST=emerge-kukui coreboot Change-Id: I5edac32938def50836f386426e7deb652b80d42d Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/38474 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Yu-Ping Wu <yupingso@google.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-12-04Change all clrsetbits_leXX() to clrsetbitsXX()Julius Werner
This patch changes all existing instances of clrsetbits_leXX() to the new endian-independent clrsetbitsXX(), after double-checking that they're all in SoC-specific code operating on CPU registers and not actually trying to make an endian conversion. This patch was created by running sed -i -e 's/\([cs][le][rt]bits\)_le\([136][624]\)/\1\2/g' across the codebase and cleaning up formatting a bit. Change-Id: I7fc3e736e5fe927da8960fdcd2aae607b62b5ff4 Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/37433 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-10-31soc/mediatek/mt8183: Disable DRAM DVFS in recovery modeYu-Ping Wu
Currently full calibration with DVFS (which implies tripling memory training time for multiple frequencies) will be run in recovery mode, which takes up to 30 seconds with serial console enabled. However, in recovery mode the system should be running only the recovery programs with minimal services. DVFS should be not needed. In order to improve stability and system boot time, we want to disable DVFS training in recovery mode. BRANCH=kukui BUG=b:142358843 TEST=emerge-kukui coreboot Change-Id: I4f1b1b020eba9bfce21655169bcb31b98d54b010 Signed-off-by: Yu-Ping Wu <yupingso@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36456 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-10-28soc/mediatek/mt8183: Pass MR values as function argumentsYu-Ping Wu
To make data flow more explicit, global variables 'MR01Value' and 'MR13Value' are replaced with local variables, which are passed as function arguments. BRANCH=kukui BUG=none TEST=1. emerge-kukui coreboot 2. Fast calibration succeeded Change-Id: Id21483092c86c3ae7dbb1173a2b943defe41a379 Signed-off-by: Yu-Ping Wu <yupingso@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36286 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-10-24soc/mediatek/mt8183: Improve DRAM calibration logsYu-Ping Wu
- Add macro dramc_err. - Some log levels are changed. - Some messages are improved for readability. BRANCH=kukui BUG=none TEST=emerge-kukui coreboot Change-Id: If0c9e61c0f81a06e9264784f682a6c373574e06b Signed-off-by: Yu-Ping Wu <yupingso@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35767 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-10-18soc/mediatek/mt8183: Pass impedance data as a function argumentYu-Ping Wu
To make data flow more explicit, global variable 'impedance' is replaced with a local variable, which is passed as a function argument. BUG=none BRANCH=kukui TEST=Krane boots correctly Change-Id: I0f6dacc33fda013a3476a10d9899821b7297e770 Signed-off-by: Yu-Ping Wu <yupingso@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35766 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-10-18soc/mediatek/mt8183: Run calibration with multiple frequencies for DVFS switchHuayang Duan
The patch adds config MT8183_DRAM_DVFS to enable DRAM calibration with multiple frequencies to support DVFS switch. BUG=b:80501386,b:142358843 BRANCH=kukui TEST=Boots correctly on Kukui Change-Id: I97c8e513dc3815a2d62b2904a246a1d8567704a4 Signed-off-by: Yu-Ping Wu <yupingso@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35555 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-10-18soc/mediatek/mt8183: Adjust DRAM voltages for each DRAM frequencyHuayang Duan
This patch supports voltage adjustment for each DRAM frequency, which is neccesary to support DVFS switch. BUG=b:80501386,b:142358843 BRANCH=none TEST=Boots correctly and stress test pass on Kukui. Change-Id: I9539473ff708f9d0d39eb17bd3fdcb916265d33e Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35017 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-10-17soc/mediatek/mt8183: Handle memory test failureYu-Ping Wu
If DRAM calibration fails or mem test fails using the cached calibration results stored in flash, rerun DRAM full calibration. If partial calibration fails or the mem test following it fails, hang forever. Partial calibration acts as a fallback approach in case of full calibration failure. Therefore, if it fails, there would be no other ways to initialize DRAM. Instead of falling into reboot loop and draining out of battery, it is better to just hang so that the end user may notice that and send to RMA. BUG=b:80501386,b:139099592 BRANCH=kukui TEST=Boots correctly on Kukui Change-Id: I8e1d4f5bc7b45f45a8bfef74e86ec0ff6a556af4 Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35481 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-10-09soc/mediatek/mt8183: Change argument type of mt_set_emiYu-Ping Wu
Since struct dramc_param has been defined, we can pass the struct directly from mt_mem_init(). BUG=b:139099592 BRANCH=none TEST=emerge-kukui coreboot Change-Id: If7333fb579eff76dd9d1c2bf6fdfe7eccb22050f Signed-off-by: Yu-Ping Wu <yupingso@chromium.org> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35846 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-10-09soc/mediatek/mt8183: Use cached calibration result for faster bootupHuayang Duan
Load calibration params from flash. If the format of the params is correct, use these calibration params for fast calibration to reduce the bootup time. Bootup time of DRAM partial calibration: - 1,349,385 usecs with low frequency - 924,698 usecs with middle frequency - 1,270,089 usecs with high frequency 3,544,172 usecs in total. Bootup time of DRAM fast calibration: - 216,663 usecs with low frequency - 328,220 usecs with middle frequency - 322,612 usecs with high frequency 867,495 usecs in total. BUG=b:139099592 BRANCH=none TEST=Boots correctly on Kukui Change-Id: I9ef4265dd369a1c276bb02294696556df927e7bc Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/35164 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-09-24mediatek/mt8183: Use different DRAM frequencies for eMCP DDRHuayang Duan
Devices using eMCP may run at a high DRAM frequency (e.g., 3600Mbps) while those with discrete DRAM can only run at 3200Mbps. This patch enables 3600Mbps for eMCP DDR for better system performance. BUG=b:80501386 BRANCH=none TEST=Boots correctly and stress test passes on Kukui Change-Id: Iab6a9c2c390feeb9497b051a255b29566909e656 Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/34990 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-09-20mediatek/mt8183: Support more DRAM frequency bootupHuayang Duan
Add more DRAM frequency bootup to support DRAM frequencies 1600Mbps, 2400Mbps, 3200Mbps and 3600Mbps. BUG=b:80501386 BRANCH=none TEST=Memory test passes on eMCP platform Change-Id: Ic1378ca43fb333c445ca77e7dc0844cdf65f2207 Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/34332 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Patrick Georgi <pgeorgi@google.com>
2019-09-20mediatek/mt8183: Implement the dramc init settingHuayang Duan
This patch implements the dram init setting by replacing the hard-coded init sequence with a series of functions to support calibration for more frequencies. These functions are modified from MediaTek's internal DRAM full calibration source code. BUG=b:80501386 BRANCH=none TEST=1. Kukui boots correctly 2. Stress test (/usr/sbin/memtester 500M) passes on Kukui Change-Id: I756ad37e78cd1384ee0eb97e5e18c5461d73bc7b Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/34988 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2019-06-21mediatek/mt8183: enable DDR low power featuremtk11195
BUG=b:80501386 BRANCH=none TEST=Boots correctly and stress test pass on Kukui. Change-Id: Ic48580e7e5db25dc1c29dabf41c4e3816fb946d3 Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/32010 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-by: Huayang Duan <huayang.duan@mediatek.corp-partner.google.com>
2019-03-04device/mmio.h: Add include file for MMIO opsKyösti Mälkki
MMIO operations are arch-agnostic so the include path should not be arch/. Change-Id: I0fd70f5aeca02e98e96b980c3aca0819f5c44b98 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/c/31691 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2019-01-03mediatek/mt8183: Add DDR driver of runtime config partHuayang Duan
BUG=b:80501386 BRANCH=none TEST=Boots correctly on Kukui, and inits DRAM successfully with related patches. Change-Id: Id1e8862ff6feb9628d37fe5300780ff56865a563 Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/c/28844 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2018-12-11mediatek/mt8183: Add DDR driver of tx rx window perbit cal partHuayang Duan
BUG=b:80501386 BRANCH=none TEST=Boots correctly on Kukui, and inits DRAM successfully with related patches. Change-Id: I4434897864993e254e1362416316470083351493 Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/c/28842 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: You-Cheng Syu <youcheng@google.com> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2018-11-08mediatek/mt8183: Add DDR driver of cmd bus training partHuayang Duan
BRANCH=none TEST=Boots correctly on Kukui, and inits DRAM successfully with related patches. Change-Id: Icb281f1b23c637971497eb28ed428235adf42f2d Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/28839 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2018-11-08mediatek/mt8183: Add DDR driver of pre-calibration partHuayang Duan
BUG=b:80501386 BRANCH=none TEST=Boots correctly on Kukui, and inits DRAM successfully with related patches. Change-Id: If462126df31468ef55ec52e2061b9f98d3015f61 Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/28838 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-11-05mediatek/mt8183: Add DDR driver of software impedance partHuayang Duan
BUG=b:80501386 BRANCH=none TEST=Boots correctly on Kukui, and inits DRAM successfully with related patches. Change-Id: I42a33ffb66ffa2f938f85484ffc3a0d3788816b3 Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/28837 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2018-10-26mediatek/mt8183: Correct MPU ctrl register addressHuayang Duan
Remove unused members in emi_mpu_regs and sdram_params. Change mpu_ctrl_d to array so the offset (0x804) for D1 is corrected. BUG=b:80501386 BRANCH=none TEST=Boots correctly on Kukui, and inits DRAM successfully with related patches. Change-Id: I95c002058dc5e1cba868334fecf8f42bd3e497e6 Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/29251 Reviewed-by: Hung-Te Lin <hungte@chromium.org> Reviewed-by: Julius Werner <jwerner@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2018-10-24mediatek/mt8183: Initialize DRAM with a sequence in constant arrayHuayang Duan
The DRAM init sequence is simply setting some values on register for all DRAM modules, no logic involved; so we can replace it by an array to configure easily. BUG=b:80501386 BRANCH=none TEST=Boots correctly on Kukui, and inits DRAM successfully with related patches. Change-Id: Iacd3ce909ba7a0bdf699c5bfcb2b97f383d7bb6f Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Reviewed-on: https://review.coreboot.org/28836 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2018-10-18mediatek/mt8183: Add EMI init for DDR driver initHuayang Duan
Add EMI config to initialize memory. BRANCH=none TEST=Boots correctly on Kukui, and inits DRAM successfully with related patches. Signed-off-by: Huayang Duan <huayang.duan@mediatek.com> Change-Id: I945181aa1c901fe78ec1f4478a928c600c1b1dea Reviewed-on: https://review.coreboot.org/28835 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Hung-Te Lin <hungte@chromium.org>
2018-06-11mediatek/mt8183: Add a stub implementation of the MT8183 SOCTristan Shieh
Most things still need to be filled in, but this will allow us to build boards which use this SOC. BUG=b:80501386 BRANCH=none TEST=timer and uart work fine Change-Id: Ie81fa56ffce85188e1f9e979f9b0e64b764c2627 Signed-off-by: Tristan Shieh <tristan.shieh@mediatek.com> Reviewed-on: https://review.coreboot.org/26659 Reviewed-by: Patrick Georgi <pgeorgi@google.com> Reviewed-by: Hung-Te Lin <hungte@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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