hekate/bootloader/mem/minerva.c
Dave Murphy cc54df87d7 fixes for compiling with gcc 10
gcc 10 no longer lets you get away with not externing global variables in header files. This adds the necessary extern and adds defines in appropriate c files
2020-05-08 23:32:44 +01:00

110 lines
2.7 KiB
C

/*
* Copyright (c) 2019 CTCaer
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include <stdlib.h>
#include "minerva.h"
#include "../soc/fuse.h"
#include "../utils/util.h"
#include "../soc/clock.h"
#include "../ianos/ianos.h"
#include "../soc/fuse.h"
#include "../soc/t210.h"
extern volatile nyx_storage_t *nyx_str;
void (*minerva_cfg)(mtc_config_t *mtc_cfg, void *);
u32 minerva_init()
{
u32 curr_ram_idx = 0;
minerva_cfg = NULL;
mtc_config_t *mtc_cfg = (mtc_config_t *)&nyx_str->mtc_cfg;
memset(mtc_cfg, 0, sizeof(mtc_config_t));
// Set table to nyx storage.
mtc_cfg->mtc_table = (emc_table_t *)nyx_str->mtc_table;
mtc_cfg->sdram_id = (fuse_read_odm(4) >> 3) & 0x1F;
mtc_cfg->init_done = MTC_NEW_MAGIC; // Initialize mtc table.
u32 ep_addr = ianos_loader(false, "bootloader/sys/libsys_minerva.bso", DRAM_LIB, (void *)mtc_cfg);
// Ensure that Minerva is new.
if (mtc_cfg->init_done == MTC_INIT_MAGIC)
minerva_cfg = (void *)ep_addr;
else
mtc_cfg->init_done = 0;
if (!minerva_cfg)
return 1;
// Get current frequency
for (curr_ram_idx = 0; curr_ram_idx < 10; curr_ram_idx++)
{
if (CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_EMC) == mtc_cfg->mtc_table[curr_ram_idx].clk_src_emc)
break;
}
mtc_cfg->rate_from = mtc_cfg->mtc_table[curr_ram_idx].rate_khz;
mtc_cfg->rate_to = 204000;
mtc_cfg->train_mode = OP_TRAIN;
minerva_cfg(mtc_cfg, NULL);
mtc_cfg->rate_to = 800000;
minerva_cfg(mtc_cfg, NULL);
mtc_cfg->rate_to = 1600000;
minerva_cfg(mtc_cfg, NULL);
// FSP WAR.
mtc_cfg->train_mode = OP_SWITCH;
mtc_cfg->rate_to = 800000;
minerva_cfg(mtc_cfg, NULL);
// Switch to max.
mtc_cfg->rate_to = 1600000;
minerva_cfg(mtc_cfg, NULL);
return 0;
}
void minerva_change_freq(minerva_freq_t freq)
{
if (!minerva_cfg)
return;
mtc_config_t *mtc_cfg = (mtc_config_t *)&nyx_str->mtc_cfg;
if (mtc_cfg->rate_from != freq)
{
mtc_cfg->rate_to = freq;
mtc_cfg->train_mode = OP_SWITCH;
minerva_cfg(mtc_cfg, NULL);
}
}
void minerva_periodic_training()
{
if (!minerva_cfg)
return;
mtc_config_t *mtc_cfg = (mtc_config_t *)&nyx_str->mtc_cfg;
if (mtc_cfg->rate_from == FREQ_1600)
{
mtc_cfg->train_mode = OP_PERIODIC_TRAIN;
minerva_cfg(mtc_cfg, NULL);
}
}