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Code Issues Releases Activity

bdk: display: use mipi cal sw war on T210 also

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As per Nvidia, the pad brick separates clock and data terminations.
This necessitates doing the calibration twice.

Nvidia/Nintendo probably never updated that part on T210 since it's from around
2015/2016. T210B01 is based on 2017 codebase so it has it.
HOS (nvservices, not boot) is probably updated to also do that.
If not, then they should fix it.

There are 0 known issue reports with that on T210, but well.
This commit is contained in:
CTCaer 2024-06-05 01:11:04 +03:00
parent 21d782587f
commit 7652d9cdb1
2 changed files with 21 additions and 14 deletions
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22
bdk/display/di.c
View file

@ -580,10 +580,15 @@ void display_init()
reg_write_array((u32 *)DSI_BASE, _di_dsi_mode_config, ARRAY_SIZE(_di_dsi_mode_config));
usleep(10000);
// Calibrate display communication pads.
const u32 loops = tegra_t210 ? 1 : 2; // Calibrate pads 2 times on T210B01.
/*
* Calibrate display communication pads.
* When switching to the 16ff pad brick, the clock lane termination control
* is separated from data lane termination. This change of the mipi cal
* brings in a bug that the DSI pad clock termination code can't be loaded
* in one time calibration. Trigger calibration twice.
*/
reg_write_array((u32 *)MIPI_CAL_BASE, _di_mipi_pad_cal_config, ARRAY_SIZE(_di_mipi_pad_cal_config));
for (u32 i = 0; i < loops; i++)
for (u32 i = 0; i < 2; i++)
{
// Set MIPI bias pad config.
MIPI_CAL(_DSIREG(MIPI_CAL_MIPI_BIAS_PAD_CFG2)) = 0x10010;
@ -593,16 +598,19 @@ void display_init()
if (tegra_t210)
{
reg_write_array((u32 *)DSI_BASE, _di_dsi_pad_cal_config_t210, ARRAY_SIZE(_di_dsi_pad_cal_config_t210));
reg_write_array((u32 *)MIPI_CAL_BASE, _di_mipi_dsi_cal_offsets_config_t210, ARRAY_SIZE(_di_mipi_dsi_cal_offsets_config_t210));
reg_write_array((u32 *)MIPI_CAL_BASE, _di_mipi_dsi_cal_prod_config_t210, ARRAY_SIZE(_di_mipi_dsi_cal_prod_config_t210));
}
else
{
reg_write_array((u32 *)DSI_BASE, _di_dsi_pad_cal_config_t210b01, ARRAY_SIZE(_di_dsi_pad_cal_config_t210b01));
reg_write_array((u32 *)MIPI_CAL_BASE, _di_mipi_dsi_cal_offsets_config_t210b01, ARRAY_SIZE(_di_mipi_dsi_cal_offsets_config_t210b01));
reg_write_array((u32 *)MIPI_CAL_BASE, _di_mipi_dsi_cal_prod_config_t210b01, ARRAY_SIZE(_di_mipi_dsi_cal_prod_config_t210b01));
}
// Reset all MIPI cal offsets and start calibration.
reg_write_array((u32 *)MIPI_CAL_BASE, _di_mipi_start_dsi_cal_config, ARRAY_SIZE(_di_mipi_start_dsi_cal_config));
// Reset all unused MIPI cal offsets.
reg_write_array((u32 *)MIPI_CAL_BASE, _di_mipi_dsi_cal_unused_config, ARRAY_SIZE(_di_mipi_dsi_cal_unused_config));
// Set Prescale/filter and start calibration.
MIPI_CAL(_DSIREG(MIPI_CAL_MIPI_CAL_CTRL)) = 0x2A000001;
}
usleep(10000);

9
bdk/display/di.inl
View file

@ -252,19 +252,19 @@ static const reg_cfg_t _di_dsi_pad_cal_config_t210b01[] = {
};
// MIPI CAL config.
static const reg_cfg_t _di_mipi_dsi_cal_offsets_config_t210[] = {
static const reg_cfg_t _di_mipi_dsi_cal_prod_config_t210[] = {
{MIPI_CAL_DSIA_MIPI_CAL_CONFIG, 0x200200},
{MIPI_CAL_DSIB_MIPI_CAL_CONFIG, 0x200200},
{MIPI_CAL_DSIA_MIPI_CAL_CONFIG_2, 0x200002},
{MIPI_CAL_DSIB_MIPI_CAL_CONFIG_2, 0x200002}
};
static const reg_cfg_t _di_mipi_dsi_cal_offsets_config_t210b01[] = {
static const reg_cfg_t _di_mipi_dsi_cal_prod_config_t210b01[] = {
{MIPI_CAL_DSIA_MIPI_CAL_CONFIG, 0x200006},
{MIPI_CAL_DSIB_MIPI_CAL_CONFIG, 0x200006},
{MIPI_CAL_DSIA_MIPI_CAL_CONFIG_2, 0x260000},
{MIPI_CAL_DSIB_MIPI_CAL_CONFIG_2, 0x260000}
};
static const reg_cfg_t _di_mipi_start_dsi_cal_config[] = {
static const reg_cfg_t _di_mipi_dsi_cal_unused_config[] = {
{MIPI_CAL_CILA_MIPI_CAL_CONFIG, 0},
{MIPI_CAL_CILB_MIPI_CAL_CONFIG, 0},
{MIPI_CAL_CILC_MIPI_CAL_CONFIG, 0},
@ -275,8 +275,7 @@ static const reg_cfg_t _di_mipi_start_dsi_cal_config[] = {
{MIPI_CAL_DSID_MIPI_CAL_CONFIG, 0},
{MIPI_CAL_DSIB_MIPI_CAL_CONFIG_2, 0},
{MIPI_CAL_DSIC_MIPI_CAL_CONFIG_2, 0},
{MIPI_CAL_DSID_MIPI_CAL_CONFIG_2, 0},
{MIPI_CAL_MIPI_CAL_CTRL, 0x2A000001} // Set Prescale and filter and start calibration.
{MIPI_CAL_DSID_MIPI_CAL_CONFIG_2, 0}
};
// Display A enable config.