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soc/mediatek/mt8183: skip fast calibration for high frequency of TX RX window 

For low frequency (e.g., 1600 or 2400 Mbps) we can do fast
calibration for TX and RX window. However, for high frequency
(e.g., 3200 or 3600 Mbps) a full calibration is needed.

BUG=b:80501386,b:142358843
BRANCH=kukui
TEST=Boots correctly on Kukui
Signed-off-by: Huayang Duan <huayang.duan@mediatek.com>

Change-Id: I00d563ece4cf91ef5e8e12b6cf7f777849375a24
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36921
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Huayang Duan 2019-11-18 09:45:22 +08:00 committed by Patrick Georgi
parent 4240e32980
commit 83b2740ba7
1 changed files with 5 additions and 4 deletions
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9
src/soc/mediatek/mt8183/dramc_pi_calibration_api.c
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@ -1788,8 +1788,9 @@ static u8 dramc_window_perbit_cal(u8 chn, u8 rank, u8 freq_group,
u8 fsp = get_freq_fsq(freq_group);
u8 vref_range = !fsp;
bool bypass_tx = !fsp;
bool bypass_tx_rx = !fsp;
dramc_dbg("bypass TX RX window: %s\n", bypass_tx_rx ? "Yes" : "No");
dramc_get_vref_prop(rank, type, fsp,
&vref_scan_enable, &vref_begin, &vref_end);
dramc_get_dly_range(chn, rank, type, freq_group, dq_precal_result,
@ -1826,9 +1827,9 @@ static u8 dramc_window_perbit_cal(u8 chn, u8 rank, u8 freq_group,
vref_step = 2;
}
if (fast_calib && bypass_tx &&
if (fast_calib && bypass_tx_rx &&
(type == TX_WIN_DQ_ONLY || type == TX_WIN_DQ_DQM)) {
dramc_set_tx_best_dly(chn, rank, true, vref_dly.perbit_dly,
dramc_set_tx_best_dly(chn, rank, bypass_tx_rx, vref_dly.perbit_dly,
type, freq_group, dq_precal_result, dly_cell_unit,
params, fast_calib);
@ -1872,7 +1873,7 @@ static u8 dramc_window_perbit_cal(u8 chn, u8 rank, u8 freq_group,
RX_DQ, FIRST_DQ_DELAY);
}
if (fast_calib &&
if (fast_calib && bypass_tx_rx &&
(type == RX_WIN_RD_DQC || type == RX_WIN_TEST_ENG)) {
dramc_dbg("bypass RX params\n");
for (size_t bit = 0; bit < DQ_DATA_WIDTH; bit++) {