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minerva: make is_pllmb and fsp automatic

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No need to keep these values around.
Software will automatically check the proper registers to get status.
This commit is contained in:
CTCaer 2022-01-16 01:43:16 +02:00
parent d1c0d464dc
commit 6a74f6ed04
2 changed files with 27 additions and 35 deletions
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59
modules/hekate_libsys_minerva/sys_sdrammtc.c
View file

@ -34,8 +34,6 @@
#define PERF_HACK
bool emc_2X_clk_src_is_pllmb;
bool fsp_for_src_freq;
bool train_ram_patterns;
/*
@ -1182,7 +1180,7 @@ out:
return mr4_0;
}
static u32 _pllm_clk_base_cfg(u32 rate_KHz, u32 clk_src_emc, bool emc_2X_clk_src_is_PLLMB)
static u32 _pllm_clk_base_cfg(u32 rate_KHz, u32 clk_src_emc, bool new_src_is_PLLMB)
{
u32 dividers = 0;
u32 i = 0;
@ -1200,7 +1198,7 @@ static u32 _pllm_clk_base_cfg(u32 rate_KHz, u32 clk_src_emc, bool emc_2X_clk_src
if (pllm_clk_config->pll_osc_in)
{
dividers = pllm_clk_config->pll_input_div | (pllm_clk_config->pll_feedback_div << 8) | ((pllm_clk_config->pll_post_div & 0x1F) << 20);
if (emc_2X_clk_src_is_PLLMB)
if (new_src_is_PLLMB)
{
CLOCK(CLK_RST_CONTROLLER_PLLMB_BASE) = dividers;
CLOCK(CLK_RST_CONTROLLER_PLLMB_BASE) |= PLLM_ENABLE;
@ -2561,8 +2559,8 @@ static u32 _minerva_set_clock(emc_table_t *src_emc_entry, emc_table_t *dst_emc_e
u32 ramp_up_wait;
u32 ramp_down_wait;
u32 bg_regulator_mode_change;
u32 mr13_flip_fspop = 0;
u32 mr13_flip_fspwr = 0;
u32 mr13_flip_fspop;
u32 mr13_flip_fspwr;
u32 mr13_catr_enable;
/* needs_training flags */
@ -2604,7 +2602,8 @@ static u32 _minerva_set_clock(emc_table_t *src_emc_entry, emc_table_t *dst_emc_e
u32 src_clock_period = 1000000000 / src_emc_entry->rate_khz; // In picoseconds.
u32 dst_clock_period = 1000000000 / dst_emc_entry->rate_khz; // In picoseconds.
fsp_for_src_freq = !fsp_for_src_freq;
// Get current FSP op/write value.
bool enable_fsp_opwr = !(EMC(EMC_MRW3) & 0xC0);
if (dram_type != DRAM_TYPE_LPDDR4)
{
@ -2834,7 +2833,7 @@ static u32 _minerva_set_clock(emc_table_t *src_emc_entry, emc_table_t *dst_emc_e
// Step 7.2 - Program FSP reference registers and send MRWs to new FSPWR.
EPRINTF("Step 7.2");
if (fsp_for_src_freq)
if (enable_fsp_opwr)
{
mr13_flip_fspop = dst_emc_entry->emc_mrw3 | 0xC0;
mr13_flip_fspwr = (dst_emc_entry->emc_mrw3 & 0xFFFFFF3F) | 0x40;
@ -3499,13 +3498,10 @@ static u32 _minerva_set_clock(emc_table_t *src_emc_entry, emc_table_t *dst_emc_e
EMC(EMC_PMACRO_TRAINING_CTRL_1) = CH0_TRAINING_E_WRPTR;
EMC(EMC_PMACRO_CFG_PM_GLOBAL_0) = 0;
// Step 30 - Re-enable autocal and Restore FSP to account for switch back (training).
// Step 30 - Re-enable autocal.
EPRINTF("Step 30");
if (needs_tristate_training)
{
EMC(EMC_AUTO_CAL_CONFIG) = src_emc_entry->emc_auto_cal_config;
fsp_for_src_freq = !fsp_for_src_freq;
}
else
{
if (dst_emc_entry->burst_regs.emc_cfg_dig_dll_idx & 1)
@ -3734,8 +3730,9 @@ static u32 _minerva_set_rate(mtc_config_t *mtc_cfg)
u32 src_emc_entry_idx = 999;
u32 dst_emc_entry_idx = 999;
u32 selected_clk_src_emc;
u32 selected_emc_2x_clk_src;
u32 emc_clk_src;
bool freq_changed = false;
bool src_is_pllmb;
emc_table_t *src_emc_entry;
emc_table_t *dst_emc_entry;
@ -3768,31 +3765,33 @@ static u32 _minerva_set_rate(mtc_config_t *mtc_cfg)
freq_changed = _check_freq_changed(dst_rate_khz, dst_clk_src_emc, src_rate_khz, src_clk_src_emc);
EPRINTFARGS("Requested freq change from %d to %d.", src_rate_khz, dst_rate_khz);
// Get current clock source.
emc_clk_src = CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_EMC) >> EMC_2X_CLK_SRC_SHIFT;
src_is_pllmb = emc_clk_src == PLLMB_UD || emc_clk_src == PLLMB_OUT0;
if (freq_changed)
{
selected_emc_2x_clk_src = src_clk_src_emc >> EMC_2X_CLK_SRC_SHIFT;
if (selected_emc_2x_clk_src & 3)
if (emc_clk_src == PLLM_UD ||
emc_clk_src == PLLM_OUT0) // Clock source is PLLM. Switch based on src_is_pllmb.
{
if (selected_emc_2x_clk_src - PLLMB_UD <= 1)
emc_2X_clk_src_is_pllmb = 0;
src_is_pllmb = !src_is_pllmb;
}
else
else if (emc_clk_src == PLLMB_UD ||
emc_clk_src == PLLMB_OUT0) // Clock source is PLLMB. Switch to PLLM.
{
emc_2X_clk_src_is_pllmb = !emc_2X_clk_src_is_pllmb;
src_is_pllmb = false;
}
selected_clk_src_emc = _pllm_clk_base_cfg(dst_rate_khz, dst_clk_src_emc, emc_2X_clk_src_is_pllmb);
selected_clk_src_emc = _pllm_clk_base_cfg(dst_rate_khz, dst_clk_src_emc, src_is_pllmb);
}
else
{
selected_clk_src_emc = dst_clk_src_emc;
selected_emc_2x_clk_src = selected_clk_src_emc >> EMC_2X_CLK_SRC_SHIFT;
if (selected_emc_2x_clk_src != PLLMB_OUT0 && selected_emc_2x_clk_src)
emc_clk_src = selected_clk_src_emc >> EMC_2X_CLK_SRC_SHIFT;
if (src_is_pllmb)
{
if (selected_emc_2x_clk_src - PLLM_UD <= PLLC_OUT0 && emc_2X_clk_src_is_pllmb)
if (emc_clk_src == PLLM_UD || emc_clk_src == PLLMB_UD)
selected_clk_src_emc = (selected_clk_src_emc & 0x1FFFFFFF) | (PLLMB_UD << EMC_2X_CLK_SRC_SHIFT);
}
else if (emc_2X_clk_src_is_pllmb)
{
else if (emc_clk_src == PLLM_OUT0 || emc_clk_src == PLLMB_OUT0)
selected_clk_src_emc = (selected_clk_src_emc & 0x1FFFFFFF) | (PLLMB_OUT0 << EMC_2X_CLK_SRC_SHIFT);
}
}
@ -3808,8 +3807,6 @@ static u32 _minerva_set_rate(mtc_config_t *mtc_cfg)
return 0;
case OP_TRAIN:
_minerva_train_patterns(src_emc_entry, dst_emc_entry, false, selected_clk_src_emc);
if (freq_changed)
emc_2X_clk_src_is_pllmb = !emc_2X_clk_src_is_pllmb;
return 0;
case OP_TRAIN_SWITCH:
_minerva_train_patterns(src_emc_entry, dst_emc_entry, true, selected_clk_src_emc);
@ -3847,8 +3844,6 @@ static void _minerva_get_table(mtc_config_t *mtc_cfg)
mtc_cfg->current_emc_table = NULL;
// Important!
mtc_cfg->emc_2X_clk_src_is_pllmb = false;
mtc_cfg->fsp_for_src_freq = false;
mtc_cfg->train_ram_patterns = true;
mtc_cfg->init_done = MTC_INIT_MAGIC;
}
@ -3858,8 +3853,6 @@ void _minerva_init(mtc_config_t *mtc_cfg, bdkParams_t bp)
EPRINTF("-- Minerva Training Cell --");
train_ram_patterns = mtc_cfg->train_ram_patterns;
fsp_for_src_freq = mtc_cfg->fsp_for_src_freq;
emc_2X_clk_src_is_pllmb = mtc_cfg->emc_2X_clk_src_is_pllmb;
if (mtc_cfg->init_done != MTC_INIT_MAGIC)
{
@ -3919,6 +3912,4 @@ void _minerva_init(mtc_config_t *mtc_cfg, bdkParams_t bp)
#endif
mtc_cfg->train_ram_patterns = train_ram_patterns;
mtc_cfg->fsp_for_src_freq = fsp_for_src_freq;
mtc_cfg->emc_2X_clk_src_is_pllmb = emc_2X_clk_src_is_pllmb;
}

1
modules/hekate_libsys_minerva/types.h
View file

@ -20,6 +20,7 @@
#define NULL ((void *)0)
#define ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1))
#define BIT(n) (1U << (n))
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define MIN(a, b) ((a) < (b) ? (a) : (b))