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hekate/bdk/mem/sdram.c
CTCaer 185526d134 Introducing Bootloader Development Kit (BDK) 
BDK will allow developers to use the full collection of drivers,
with limited editing, if any, for making payloads for Nintendo Switch.

Using a single source for everything will also help decoupling
Switch specific code and easily port it to other Tegra X1/X1+ platforms.
And maybe even to lower targets.

Everything is now centrilized into bdk folder.
Every module or project can utilize it by simply including it.

This is just the start and it will continue to improve.
2020-06-14 15:25:21 +03:00

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/*
* Copyright (c) 2018 naehrwert
* Copyright (c) 2018 balika011
* Copyright (c) 2019-2020 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 "mc.h"
#include "emc.h"
#include "sdram_param_t210.h"
#include "../../common/memory_map.h"
#include "../power/max77620.h"
#include "../power/max7762x.h"
#include "../soc/clock.h"
#include "../soc/fuse.h"
#include "../soc/i2c.h"
#include "../soc/pmc.h"
#include "../soc/t210.h"
#include "../utils/util.h"
#define CONFIG_SDRAM_KEEP_ALIVE
#ifdef CONFIG_SDRAM_COMPRESS_CFG
#include "../libs/compr/lz.h"
#include "sdram_config_lz.inl"
#else
#include "sdram_config.inl"
#endif
static u32 _get_sdram_id()
{
return ((fuse_read_odm(4) & 0xF8) >> 3);
}
static bool _sdram_wait_emc_status(u32 reg_offset, u32 bit_mask, bool updated_state, s32 emc_channel)
{
bool err = true;
for (s32 i = 0; i < EMC_STATUS_UPDATE_TIMEOUT; i++)
{
if (emc_channel)
{
if (emc_channel != 1)
goto done;
if (((EMC_CH1(reg_offset) & bit_mask) != 0) == updated_state)
{
err = false;
break;
}
}
else if (((EMC(reg_offset) & bit_mask) != 0) == updated_state)
{
err = false;
break;
}
usleep(1);
}
done:
return err;
}
static void _sdram_req_mrr_data(u32 data, bool dual_channel)
{
EMC(EMC_MRR) = data;
_sdram_wait_emc_status(EMC_EMC_STATUS, EMC_STATUS_MRR_DIVLD, true, EMC_CHAN0);
if (dual_channel)
_sdram_wait_emc_status(EMC_EMC_STATUS, EMC_STATUS_MRR_DIVLD, true, EMC_CHAN1);
}
emc_mr_data_t sdram_read_mrx(emc_mr_t mrx)
{
emc_mr_data_t data;
_sdram_req_mrr_data((1 << 31) | (mrx << 16), EMC_CHAN0);
data.dev0_ch0 = EMC(EMC_MRR) & 0xFF;
data.dev0_ch1 = (EMC(EMC_MRR) & 0xFF00 >> 8);
_sdram_req_mrr_data((1 << 30) | (mrx << 16), EMC_CHAN1);
data.dev1_ch0 = EMC(EMC_MRR) & 0xFF;
data.dev1_ch1 = (EMC(EMC_MRR) & 0xFF00 >> 8);
return data;
}
static void _sdram_config(const sdram_params_t *params)
{
// Program DPD3/DPD4 regs (coldboot path).
// Enable sel_dpd on unused pins.
u32 dpd_req = (params->emc_pmc_scratch1 & 0x3FFFFFFF) | 0x80000000;
PMC(APBDEV_PMC_IO_DPD3_REQ) = (dpd_req ^ 0xFFFF) & 0xC000FFFF;
usleep(params->pmc_io_dpd3_req_wait);
// Disable e_dpd_vttgen.
dpd_req = (params->emc_pmc_scratch2 & 0x3FFFFFFF) | 0x80000000;
PMC(APBDEV_PMC_IO_DPD4_REQ) = (dpd_req & 0xFFFF0000) ^ 0x3FFF0000;
usleep(params->pmc_io_dpd4_req_wait);
// Disable e_dpd_bg.
PMC(APBDEV_PMC_IO_DPD4_REQ) = (dpd_req ^ 0xFFFF) & 0xC000FFFF;
usleep(params->pmc_io_dpd4_req_wait);
PMC(APBDEV_PMC_WEAK_BIAS) = 0;
usleep(1);
// Start clocks.
CLOCK(CLK_RST_CONTROLLER_PLLM_MISC1) = params->pllm_setup_control;
CLOCK(CLK_RST_CONTROLLER_PLLM_MISC2) = 0;
#ifdef CONFIG_SDRAM_KEEP_ALIVE
CLOCK(CLK_RST_CONTROLLER_PLLM_BASE) =
(params->pllm_feedback_divider << 8) | params->pllm_input_divider | ((params->pllm_post_divider & 0xFFFF) << 20) | PLLCX_BASE_ENABLE;
#else
u32 pllm_div = (params->pllm_feedback_divider << 8) | params->pllm_input_divider | ((params->pllm_post_divider & 0xFFFF) << 20);
CLOCK(CLK_RST_CONTROLLER_PLLM_BASE) = pllm_div;
CLOCK(CLK_RST_CONTROLLER_PLLM_BASE) = pllm_div | PLLCX_BASE_ENABLE;
#endif
u32 wait_end = get_tmr_us() + 300;
while (!(CLOCK(CLK_RST_CONTROLLER_PLLM_BASE) & 0x8000000))
{
if (get_tmr_us() >= wait_end)
goto break_nosleep;
}
usleep(10);
break_nosleep:
CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_EMC) = ((params->mc_emem_arb_misc0 >> 11) & 0x10000) | (params->emc_clock_source & 0xFFFEFFFF);
if (params->emc_clock_source_dll)
CLOCK(CLK_RST_CONTROLLER_CLK_SOURCE_EMC_DLL) = params->emc_clock_source_dll;
if (params->clear_clock2_mc1)
CLOCK(CLK_RST_CONTROLLER_CLK_ENB_W_CLR) = 0x40000000; // Clear Reset to MC1.
CLOCK(CLK_RST_CONTROLLER_CLK_ENB_H_SET) = 0x2000001; // Enable EMC and MEM clocks.
CLOCK(CLK_RST_CONTROLLER_CLK_ENB_X_SET) = 0x4000; // Enable EMC_DLL clock.
CLOCK(CLK_RST_CONTROLLER_RST_DEV_H_CLR) = 0x2000001; // Clear EMC and MEM resets.
// Set pad macros.
EMC(EMC_PMACRO_VTTGEN_CTRL_0) = params->emc_pmacro_vttgen_ctrl0;
EMC(EMC_PMACRO_VTTGEN_CTRL_1) = params->emc_pmacro_vttgen_ctrl1;
EMC(EMC_PMACRO_VTTGEN_CTRL_2) = params->emc_pmacro_vttgen_ctrl2;
EMC(EMC_TIMING_CONTROL) = 1; // Trigger timing update so above writes take place.
usleep(10); // Ensure the regulators settle.
// Select EMC write mux.
EMC(EMC_DBG) = (params->emc_dbg_write_mux << 1) | params->emc_dbg;
// Patch 2 using BCT spare variables.
if (params->emc_bct_spare2)
*(vu32 *)params->emc_bct_spare2 = params->emc_bct_spare3;
// Program CMD mapping. Required before brick mapping, else
// we can't guarantee CK will be differential at all times.
EMC(EMC_FBIO_CFG7) = params->emc_fbio_cfg7;
EMC(EMC_CMD_MAPPING_CMD0_0) = params->emc_cmd_mapping_cmd0_0;
EMC(EMC_CMD_MAPPING_CMD0_1) = params->emc_cmd_mapping_cmd0_1;
EMC(EMC_CMD_MAPPING_CMD0_2) = params->emc_cmd_mapping_cmd0_2;
EMC(EMC_CMD_MAPPING_CMD1_0) = params->emc_cmd_mapping_cmd1_0;
EMC(EMC_CMD_MAPPING_CMD1_1) = params->emc_cmd_mapping_cmd1_1;
EMC(EMC_CMD_MAPPING_CMD1_2) = params->emc_cmd_mapping_cmd1_2;
EMC(EMC_CMD_MAPPING_CMD2_0) = params->emc_cmd_mapping_cmd2_0;
EMC(EMC_CMD_MAPPING_CMD2_1) = params->emc_cmd_mapping_cmd2_1;
EMC(EMC_CMD_MAPPING_CMD2_2) = params->emc_cmd_mapping_cmd2_2;
EMC(EMC_CMD_MAPPING_CMD3_0) = params->emc_cmd_mapping_cmd3_0;
EMC(EMC_CMD_MAPPING_CMD3_1) = params->emc_cmd_mapping_cmd3_1;
EMC(EMC_CMD_MAPPING_CMD3_2) = params->emc_cmd_mapping_cmd3_2;
EMC(EMC_CMD_MAPPING_BYTE) = params->emc_cmd_mapping_byte;
// Program brick mapping.
EMC(EMC_PMACRO_BRICK_MAPPING_0) = params->emc_pmacro_brick_mapping0;
EMC(EMC_PMACRO_BRICK_MAPPING_1) = params->emc_pmacro_brick_mapping1;
EMC(EMC_PMACRO_BRICK_MAPPING_2) = params->emc_pmacro_brick_mapping2;
EMC(EMC_PMACRO_BRICK_CTRL_RFU1) = (params->emc_pmacro_brick_ctrl_rfu1 & 0x1120112) | 0x1EED1EED;
// This is required to do any reads from the pad macros.
EMC(EMC_CONFIG_SAMPLE_DELAY) = params->emc_config_sample_delay;
EMC(EMC_FBIO_CFG8) = params->emc_fbio_cfg8;
// Set swizzle for Rank 0.
EMC(EMC_SWIZZLE_RANK0_BYTE0) = params->emc_swizzle_rank0_byte0;
EMC(EMC_SWIZZLE_RANK0_BYTE1) = params->emc_swizzle_rank0_byte1;
EMC(EMC_SWIZZLE_RANK0_BYTE2) = params->emc_swizzle_rank0_byte2;
EMC(EMC_SWIZZLE_RANK0_BYTE3) = params->emc_swizzle_rank0_byte3;
// Set swizzle for Rank 1.
EMC(EMC_SWIZZLE_RANK1_BYTE0) = params->emc_swizzle_rank1_byte0;
EMC(EMC_SWIZZLE_RANK1_BYTE1) = params->emc_swizzle_rank1_byte1;
EMC(EMC_SWIZZLE_RANK1_BYTE2) = params->emc_swizzle_rank1_byte2;
EMC(EMC_SWIZZLE_RANK1_BYTE3) = params->emc_swizzle_rank1_byte3;
// Patch 3 using BCT spare variables.
if (params->emc_bct_spare6)
*(vu32 *)params->emc_bct_spare6 = params->emc_bct_spare7;
// Set pad controls.
EMC(EMC_XM2COMPPADCTRL) = params->emc_xm2_comp_pad_ctrl;
EMC(EMC_XM2COMPPADCTRL2) = params->emc_xm2_comp_pad_ctrl2;
EMC(EMC_XM2COMPPADCTRL3) = params->emc_xm2_comp_pad_ctrl3;
// Program Autocal controls with shadowed register fields.
EMC(EMC_AUTO_CAL_CONFIG2) = params->emc_auto_cal_config2;
EMC(EMC_AUTO_CAL_CONFIG3) = params->emc_auto_cal_config3;
EMC(EMC_AUTO_CAL_CONFIG4) = params->emc_auto_cal_config4;
EMC(EMC_AUTO_CAL_CONFIG5) = params->emc_auto_cal_config5;
EMC(EMC_AUTO_CAL_CONFIG6) = params->emc_auto_cal_config6;
EMC(EMC_AUTO_CAL_CONFIG7) = params->emc_auto_cal_config7;
EMC(EMC_AUTO_CAL_CONFIG8) = params->emc_auto_cal_config8;
EMC(EMC_PMACRO_RX_TERM) = params->emc_pmacro_rx_term;
EMC(EMC_PMACRO_DQ_TX_DRV) = params->emc_pmacro_dq_tx_drive;
EMC(EMC_PMACRO_CA_TX_DRV) = params->emc_pmacro_ca_tx_drive;
EMC(EMC_PMACRO_CMD_TX_DRV) = params->emc_pmacro_cmd_tx_drive;
EMC(EMC_PMACRO_AUTOCAL_CFG_COMMON) = params->emc_pmacro_auto_cal_common;
EMC(EMC_AUTO_CAL_CHANNEL) = params->emc_auto_cal_channel;
EMC(EMC_PMACRO_ZCTRL) = params->emc_pmacro_zcrtl;
EMC(EMC_DLL_CFG_0) = params->emc_dll_cfg0;
EMC(EMC_DLL_CFG_1) = params->emc_dll_cfg1;
EMC(EMC_CFG_DIG_DLL_1) = params->emc_cfg_dig_dll_1;
EMC(EMC_DATA_BRLSHFT_0) = params->emc_data_brlshft0;
EMC(EMC_DATA_BRLSHFT_1) = params->emc_data_brlshft1;
EMC(EMC_DQS_BRLSHFT_0) = params->emc_dqs_brlshft0;
EMC(EMC_DQS_BRLSHFT_1) = params->emc_dqs_brlshft1;
EMC(EMC_CMD_BRLSHFT_0) = params->emc_cmd_brlshft0;
EMC(EMC_CMD_BRLSHFT_1) = params->emc_cmd_brlshft1;
EMC(EMC_CMD_BRLSHFT_2) = params->emc_cmd_brlshft2;
EMC(EMC_CMD_BRLSHFT_3) = params->emc_cmd_brlshft3;
EMC(EMC_QUSE_BRLSHFT_0) = params->emc_quse_brlshft0;
EMC(EMC_QUSE_BRLSHFT_1) = params->emc_quse_brlshft1;
EMC(EMC_QUSE_BRLSHFT_2) = params->emc_quse_brlshft2;
EMC(EMC_QUSE_BRLSHFT_3) = params->emc_quse_brlshft3;
EMC(EMC_PMACRO_BRICK_CTRL_RFU1) = (params->emc_pmacro_brick_ctrl_rfu1 & 0x1BF01BF) | 0x1E401E40;
EMC(EMC_PMACRO_PAD_CFG_CTRL) = params->emc_pmacro_pad_cfg_ctrl;
EMC(EMC_PMACRO_CMD_BRICK_CTRL_FDPD) = params->emc_pmacro_cmd_brick_ctrl_fdpd;
EMC(EMC_PMACRO_BRICK_CTRL_RFU2) = params->emc_pmacro_brick_ctrl_rfu2 & 0xFF7FFF7F;
EMC(EMC_PMACRO_DATA_BRICK_CTRL_FDPD) = params->emc_pmacro_data_brick_ctrl_fdpd;
EMC(EMC_PMACRO_BG_BIAS_CTRL_0) = params->emc_pmacro_bg_bias_ctrl0;
EMC(EMC_PMACRO_DATA_PAD_RX_CTRL) = params->emc_pmacro_data_pad_rx_ctrl;
EMC(EMC_PMACRO_CMD_PAD_RX_CTRL) = params->emc_pmacro_cmd_pad_rx_ctrl;
EMC(EMC_PMACRO_DATA_PAD_TX_CTRL) = params->emc_pmacro_data_pad_tx_ctrl;
EMC(EMC_PMACRO_DATA_RX_TERM_MODE) = params->emc_pmacro_data_rx_term_mode;
EMC(EMC_PMACRO_CMD_RX_TERM_MODE) = params->emc_pmacro_cmd_rx_term_mode;
EMC(EMC_PMACRO_CMD_PAD_TX_CTRL) = params->emc_pmacro_cmd_pad_tx_ctrl;
EMC(EMC_CFG_3) = params->emc_cfg3;
EMC(EMC_PMACRO_TX_PWRD_0) = params->emc_pmacro_tx_pwrd0;
EMC(EMC_PMACRO_TX_PWRD_1) = params->emc_pmacro_tx_pwrd1;
EMC(EMC_PMACRO_TX_PWRD_2) = params->emc_pmacro_tx_pwrd2;
EMC(EMC_PMACRO_TX_PWRD_3) = params->emc_pmacro_tx_pwrd3;
EMC(EMC_PMACRO_TX_PWRD_4) = params->emc_pmacro_tx_pwrd4;
EMC(EMC_PMACRO_TX_PWRD_5) = params->emc_pmacro_tx_pwrd5;
EMC(EMC_PMACRO_TX_SEL_CLK_SRC_0) = params->emc_pmacro_tx_sel_clk_src0;
EMC(EMC_PMACRO_TX_SEL_CLK_SRC_1) = params->emc_pmacro_tx_sel_clk_src1;
EMC(EMC_PMACRO_TX_SEL_CLK_SRC_2) = params->emc_pmacro_tx_sel_clk_src2;
EMC(EMC_PMACRO_TX_SEL_CLK_SRC_3) = params->emc_pmacro_tx_sel_clk_src3;
EMC(EMC_PMACRO_TX_SEL_CLK_SRC_4) = params->emc_pmacro_tx_sel_clk_src4;
EMC(EMC_PMACRO_TX_SEL_CLK_SRC_5) = params->emc_pmacro_tx_sel_clk_src5;
EMC(EMC_PMACRO_DDLL_BYPASS) = params->emc_pmacro_ddll_bypass;
EMC(EMC_PMACRO_DDLL_PWRD_0) = params->emc_pmacro_ddll_pwrd0;
EMC(EMC_PMACRO_DDLL_PWRD_1) = params->emc_pmacro_ddll_pwrd1;
EMC(EMC_PMACRO_DDLL_PWRD_2) = params->emc_pmacro_ddll_pwrd2;
EMC(EMC_PMACRO_CMD_CTRL_0) = params->emc_pmacro_cmd_ctrl0;
EMC(EMC_PMACRO_CMD_CTRL_1) = params->emc_pmacro_cmd_ctrl1;
EMC(EMC_PMACRO_CMD_CTRL_2) = params->emc_pmacro_cmd_ctrl2;
EMC(EMC_PMACRO_IB_VREF_DQ_0) = params->emc_pmacro_ib_vref_dq_0;
EMC(EMC_PMACRO_IB_VREF_DQ_1) = params->emc_pmacro_ib_vref_dq_1;
EMC(EMC_PMACRO_IB_VREF_DQS_0) = params->emc_pmacro_ib_vref_dqs_0;
EMC(EMC_PMACRO_IB_VREF_DQS_1) = params->emc_pmacro_ib_vref_dqs_1;
EMC(EMC_PMACRO_IB_RXRT) = params->emc_pmacro_ib_rxrt;
EMC(EMC_PMACRO_QUSE_DDLL_RANK0_0) = params->emc_pmacro_quse_ddll_rank0_0;
EMC(EMC_PMACRO_QUSE_DDLL_RANK0_1) = params->emc_pmacro_quse_ddll_rank0_1;
EMC(EMC_PMACRO_QUSE_DDLL_RANK0_2) = params->emc_pmacro_quse_ddll_rank0_2;
EMC(EMC_PMACRO_QUSE_DDLL_RANK0_3) = params->emc_pmacro_quse_ddll_rank0_3;
EMC(EMC_PMACRO_QUSE_DDLL_RANK0_4) = params->emc_pmacro_quse_ddll_rank0_4;
EMC(EMC_PMACRO_QUSE_DDLL_RANK0_5) = params->emc_pmacro_quse_ddll_rank0_5;
EMC(EMC_PMACRO_QUSE_DDLL_RANK1_0) = params->emc_pmacro_quse_ddll_rank1_0;
EMC(EMC_PMACRO_QUSE_DDLL_RANK1_1) = params->emc_pmacro_quse_ddll_rank1_1;
EMC(EMC_PMACRO_QUSE_DDLL_RANK1_2) = params->emc_pmacro_quse_ddll_rank1_2;
EMC(EMC_PMACRO_QUSE_DDLL_RANK1_3) = params->emc_pmacro_quse_ddll_rank1_3;
EMC(EMC_PMACRO_QUSE_DDLL_RANK1_4) = params->emc_pmacro_quse_ddll_rank1_4;
EMC(EMC_PMACRO_QUSE_DDLL_RANK1_5) = params->emc_pmacro_quse_ddll_rank1_5;
EMC(EMC_PMACRO_BRICK_CTRL_RFU1) = params->emc_pmacro_brick_ctrl_rfu1;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQ_RANK0_0) = params->emc_pmacro_ob_ddll_long_dq_rank0_0;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQ_RANK0_1) = params->emc_pmacro_ob_ddll_long_dq_rank0_1;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQ_RANK0_2) = params->emc_pmacro_ob_ddll_long_dq_rank0_2;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQ_RANK0_3) = params->emc_pmacro_ob_ddll_long_dq_rank0_3;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQ_RANK0_4) = params->emc_pmacro_ob_ddll_long_dq_rank0_4;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQ_RANK0_5) = params->emc_pmacro_ob_ddll_long_dq_rank0_5;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQ_RANK1_0) = params->emc_pmacro_ob_ddll_long_dq_rank1_0;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQ_RANK1_1) = params->emc_pmacro_ob_ddll_long_dq_rank1_1;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQ_RANK1_2) = params->emc_pmacro_ob_ddll_long_dq_rank1_2;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQ_RANK1_3) = params->emc_pmacro_ob_ddll_long_dq_rank1_3;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQ_RANK1_4) = params->emc_pmacro_ob_ddll_long_dq_rank1_4;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQ_RANK1_5) = params->emc_pmacro_ob_ddll_long_dq_rank1_5;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQS_RANK0_0) = params->emc_pmacro_ob_ddll_long_dqs_rank0_0;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQS_RANK0_1) = params->emc_pmacro_ob_ddll_long_dqs_rank0_1;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQS_RANK0_2) = params->emc_pmacro_ob_ddll_long_dqs_rank0_2;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQS_RANK0_3) = params->emc_pmacro_ob_ddll_long_dqs_rank0_3;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQS_RANK0_4) = params->emc_pmacro_ob_ddll_long_dqs_rank0_4;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQS_RANK0_5) = params->emc_pmacro_ob_ddll_long_dqs_rank0_5;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQS_RANK1_0) = params->emc_pmacro_ob_ddll_long_dqs_rank1_0;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQS_RANK1_1) = params->emc_pmacro_ob_ddll_long_dqs_rank1_1;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQS_RANK1_2) = params->emc_pmacro_ob_ddll_long_dqs_rank1_2;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQS_RANK1_3) = params->emc_pmacro_ob_ddll_long_dqs_rank1_3;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQS_RANK1_4) = params->emc_pmacro_ob_ddll_long_dqs_rank1_4;
EMC(EMC_PMACRO_OB_DDLL_LONG_DQS_RANK1_5) = params->emc_pmacro_ob_ddll_long_dqs_rank1_5;
EMC(EMC_PMACRO_IB_DDLL_LONG_DQS_RANK0_0) = params->emc_pmacro_ib_ddll_long_dqs_rank0_0;
EMC(EMC_PMACRO_IB_DDLL_LONG_DQS_RANK0_1) = params->emc_pmacro_ib_ddll_long_dqs_rank0_1;
EMC(EMC_PMACRO_IB_DDLL_LONG_DQS_RANK0_2) = params->emc_pmacro_ib_ddll_long_dqs_rank0_2;
EMC(EMC_PMACRO_IB_DDLL_LONG_DQS_RANK0_3) = params->emc_pmacro_ib_ddll_long_dqs_rank0_3;
EMC(EMC_PMACRO_IB_DDLL_LONG_DQS_RANK1_0) = params->emc_pmacro_ib_ddll_long_dqs_rank1_0;
EMC(EMC_PMACRO_IB_DDLL_LONG_DQS_RANK1_1) = params->emc_pmacro_ib_ddll_long_dqs_rank1_1;
EMC(EMC_PMACRO_IB_DDLL_LONG_DQS_RANK1_2) = params->emc_pmacro_ib_ddll_long_dqs_rank1_2;
EMC(EMC_PMACRO_IB_DDLL_LONG_DQS_RANK1_3) = params->emc_pmacro_ib_ddll_long_dqs_rank1_3;
EMC(EMC_PMACRO_DDLL_LONG_CMD_0) = params->emc_pmacro_ddll_long_cmd_0;
EMC(EMC_PMACRO_DDLL_LONG_CMD_1) = params->emc_pmacro_ddll_long_cmd_1;
EMC(EMC_PMACRO_DDLL_LONG_CMD_2) = params->emc_pmacro_ddll_long_cmd_2;
EMC(EMC_PMACRO_DDLL_LONG_CMD_3) = params->emc_pmacro_ddll_long_cmd_3;
EMC(EMC_PMACRO_DDLL_LONG_CMD_4) = params->emc_pmacro_ddll_long_cmd_4;
EMC(EMC_PMACRO_DDLL_SHORT_CMD_0) = params->emc_pmacro_ddll_short_cmd_0;
EMC(EMC_PMACRO_DDLL_SHORT_CMD_1) = params->emc_pmacro_ddll_short_cmd_1;
EMC(EMC_PMACRO_DDLL_SHORT_CMD_2) = params->emc_pmacro_ddll_short_cmd_2;
// Common pad macro (cpm).
EMC(EMC_PMACRO_COMMON_PAD_TX_CTRL) = (params->emc_pmacro_common_pad_tx_ctrl & 1) | 0xE;
// Patch 4 using BCT spare variables.
if (params->emc_bct_spare4)
*(vu32 *)params->emc_bct_spare4 = params->emc_bct_spare5;
EMC(EMC_TIMING_CONTROL) = 1; // Trigger timing update so above writes take place.
// Initialize MC VPR settings.
MC(MC_VIDEO_PROTECT_BOM) = params->mc_video_protect_bom;
MC(MC_VIDEO_PROTECT_BOM_ADR_HI) = params->mc_video_protect_bom_adr_hi;
MC(MC_VIDEO_PROTECT_SIZE_MB) = params->mc_video_protect_size_mb;
MC(MC_VIDEO_PROTECT_VPR_OVERRIDE) = params->mc_video_protect_vpr_override;
MC(MC_VIDEO_PROTECT_VPR_OVERRIDE1) = params->mc_video_protect_vpr_override1;
MC(MC_VIDEO_PROTECT_GPU_OVERRIDE_0) = params->mc_video_protect_gpu_override0;
MC(MC_VIDEO_PROTECT_GPU_OVERRIDE_1) = params->mc_video_protect_gpu_override1;
// Program SDRAM geometry parameters.
MC(MC_EMEM_ADR_CFG) = params->mc_emem_adr_cfg;
MC(MC_EMEM_ADR_CFG_DEV0) = params->mc_emem_adr_cfg_dev0;
MC(MC_EMEM_ADR_CFG_DEV1) = params->mc_emem_adr_cfg_dev1;
MC(MC_EMEM_ADR_CFG_CHANNEL_MASK) = params->mc_emem_adr_cfg_channel_mask;
// Program bank swizzling.
MC(MC_EMEM_ADR_CFG_BANK_MASK_0) = params->mc_emem_adr_cfg_bank_mask0;
MC(MC_EMEM_ADR_CFG_BANK_MASK_1) = params->mc_emem_adr_cfg_bank_mask1;
MC(MC_EMEM_ADR_CFG_BANK_MASK_2) = params->mc_emem_adr_cfg_bank_mask2;
// Program external memory aperture (base and size).
MC(MC_EMEM_CFG) = params->mc_emem_cfg;
// Program SEC carveout (base and size).
MC(MC_SEC_CARVEOUT_BOM) = params->mc_sec_carveout_bom;
MC(MC_SEC_CARVEOUT_ADR_HI) = params->mc_sec_carveout_adr_hi;
MC(MC_SEC_CARVEOUT_SIZE_MB) = params->mc_sec_carveout_size_mb;
// Program MTS carveout (base and size).
MC(MC_MTS_CARVEOUT_BOM) = params->mc_mts_carveout_bom;
MC(MC_MTS_CARVEOUT_ADR_HI) = params->mc_mts_carveout_adr_hi;
MC(MC_MTS_CARVEOUT_SIZE_MB) = params->mc_mts_carveout_size_mb;
// Program the memory arbiter.
MC(MC_EMEM_ARB_CFG) = params->mc_emem_arb_cfg;
MC(MC_EMEM_ARB_OUTSTANDING_REQ) = params->mc_emem_arb_outstanding_req;
MC(MC_EMEM_ARB_REFPB_HP_CTRL) = params->emc_emem_arb_refpb_hp_ctrl;
MC(MC_EMEM_ARB_REFPB_BANK_CTRL) = params->emc_emem_arb_refpb_bank_ctrl;
MC(MC_EMEM_ARB_TIMING_RCD) = params->mc_emem_arb_timing_rcd;
MC(MC_EMEM_ARB_TIMING_RP) = params->mc_emem_arb_timing_rp;
MC(MC_EMEM_ARB_TIMING_RC) = params->mc_emem_arb_timing_rc;
MC(MC_EMEM_ARB_TIMING_RAS) = params->mc_emem_arb_timing_ras;
MC(MC_EMEM_ARB_TIMING_FAW) = params->mc_emem_arb_timing_faw;
MC(MC_EMEM_ARB_TIMING_RRD) = params->mc_emem_arb_timing_rrd;
MC(MC_EMEM_ARB_TIMING_RAP2PRE) = params->mc_emem_arb_timing_rap2pre;
MC(MC_EMEM_ARB_TIMING_WAP2PRE) = params->mc_emem_arb_timing_wap2pre;
MC(MC_EMEM_ARB_TIMING_R2R) = params->mc_emem_arb_timing_r2r;
MC(MC_EMEM_ARB_TIMING_W2W) = params->mc_emem_arb_timing_w2w;
MC(MC_EMEM_ARB_TIMING_CCDMW) = params->mc_emem_arb_timing_ccdmw;
MC(MC_EMEM_ARB_TIMING_R2W) = params->mc_emem_arb_timing_r2w;
MC(MC_EMEM_ARB_TIMING_W2R) = params->mc_emem_arb_timing_w2r;
MC(MC_EMEM_ARB_TIMING_RFCPB) = params->mc_emem_arb_timing_rfcpb;
MC(MC_EMEM_ARB_DA_TURNS) = params->mc_emem_arb_da_turns;
MC(MC_EMEM_ARB_DA_COVERS) = params->mc_emem_arb_da_covers;
MC(MC_EMEM_ARB_MISC0) = params->mc_emem_arb_misc0;
MC(MC_EMEM_ARB_MISC1) = params->mc_emem_arb_misc1;
MC(MC_EMEM_ARB_MISC2) = params->mc_emem_arb_misc2;
MC(MC_EMEM_ARB_RING1_THROTTLE) = params->mc_emem_arb_ring1_throttle;
MC(MC_EMEM_ARB_OVERRIDE) = params->mc_emem_arb_override;
MC(MC_EMEM_ARB_OVERRIDE_1) = params->mc_emem_arb_override1;
MC(MC_EMEM_ARB_RSV) = params->mc_emem_arb_rsv;
MC(MC_DA_CONFIG0) = params->mc_da_cfg0;
MC(MC_TIMING_CONTROL) = 1; // Trigger MC timing update.
// Program second-level clock enable overrides.
MC(MC_CLKEN_OVERRIDE) = params->mc_clken_override;
// Program statistics gathering.
MC(MC_STAT_CONTROL) = params->mc_stat_control;
// Program SDRAM geometry parameters.
EMC(EMC_ADR_CFG) = params->emc_adr_cfg;
// Program second-level clock enable overrides.
EMC(EMC_CLKEN_OVERRIDE) = params->emc_clken_override;
// Program EMC pad auto calibration.
EMC(EMC_PMACRO_AUTOCAL_CFG_0) = params->emc_pmacro_auto_cal_cfg0;
EMC(EMC_PMACRO_AUTOCAL_CFG_1) = params->emc_pmacro_auto_cal_cfg1;
EMC(EMC_PMACRO_AUTOCAL_CFG_2) = params->emc_pmacro_auto_cal_cfg2;
EMC(EMC_AUTO_CAL_VREF_SEL_0) = params->emc_auto_cal_vref_sel0;
EMC(EMC_AUTO_CAL_VREF_SEL_1) = params->emc_auto_cal_vref_sel1;
EMC(EMC_AUTO_CAL_INTERVAL) = params->emc_auto_cal_interval;
EMC(EMC_AUTO_CAL_CONFIG) = params->emc_auto_cal_config;
usleep(params->emc_auto_cal_wait);
// Patch 5 using BCT spare variables.
if (params->emc_bct_spare8)
*(vu32 *)params->emc_bct_spare8 = params->emc_bct_spare9;
// Program EMC timing configuration.
EMC(EMC_CFG_2) = params->emc_cfg2;
EMC(EMC_CFG_PIPE) = params->emc_cfg_pipe;
EMC(EMC_CFG_PIPE_1) = params->emc_cfg_pipe1;
EMC(EMC_CFG_PIPE_2) = params->emc_cfg_pipe2;
EMC(EMC_CMDQ) = params->emc_cmd_q;
EMC(EMC_MC2EMCQ) = params->emc_mc2emc_q;
EMC(EMC_MRS_WAIT_CNT) = params->emc_mrs_wait_cnt;
EMC(EMC_MRS_WAIT_CNT2) = params->emc_mrs_wait_cnt2;
EMC(EMC_FBIO_CFG5) = params->emc_fbio_cfg5;
EMC(EMC_RC) = params->emc_rc;
EMC(EMC_RFC) = params->emc_rfc;
EMC(EMC_RFCPB) = params->emc_rfc_pb;
EMC(EMC_REFCTRL2) = params->emc_ref_ctrl2;
EMC(EMC_RFC_SLR) = params->emc_rfc_slr;
EMC(EMC_RAS) = params->emc_ras;
EMC(EMC_RP) = params->emc_rp;
EMC(EMC_TPPD) = params->emc_tppd;
EMC(EMC_R2R) = params->emc_r2r;
EMC(EMC_W2W) = params->emc_w2w;
EMC(EMC_R2W) = params->emc_r2w;
EMC(EMC_W2R) = params->emc_w2r;
EMC(EMC_R2P) = params->emc_r2p;
EMC(EMC_W2P) = params->emc_w2p;
EMC(EMC_CCDMW) = params->emc_ccdmw;
EMC(EMC_RD_RCD) = params->emc_rd_rcd;
EMC(EMC_WR_RCD) = params->emc_wr_rcd;
EMC(EMC_RRD) = params->emc_rrd;
EMC(EMC_REXT) = params->emc_rext;
EMC(EMC_WEXT) = params->emc_wext;
EMC(EMC_WDV) = params->emc_wdv;
EMC(EMC_WDV_CHK) = params->emc_wdv_chk;
EMC(EMC_WSV) = params->emc_wsv;
EMC(EMC_WEV) = params->emc_wev;
EMC(EMC_WDV_MASK) = params->emc_wdv_mask;
EMC(EMC_WS_DURATION) = params->emc_ws_duration;
EMC(EMC_WE_DURATION) = params->emc_we_duration;
EMC(EMC_QUSE) = params->emc_quse;
EMC(EMC_QUSE_WIDTH) = params->emc_quse_width;
EMC(EMC_IBDLY) = params->emc_ibdly;
EMC(EMC_OBDLY) = params->emc_obdly;
EMC(EMC_EINPUT) = params->emc_einput;
EMC(EMC_EINPUT_DURATION) = params->emc_einput_duration;
EMC(EMC_PUTERM_EXTRA) = params->emc_puterm_extra;
EMC(EMC_PUTERM_WIDTH) = params->emc_puterm_width;
EMC(EMC_PMACRO_COMMON_PAD_TX_CTRL) = params->emc_pmacro_common_pad_tx_ctrl;
EMC(EMC_DBG) = params->emc_dbg;
EMC(EMC_QRST) = params->emc_qrst;
EMC(EMC_ISSUE_QRST) = 1;
EMC(EMC_ISSUE_QRST) = 0;
EMC(EMC_QSAFE) = params->emc_qsafe;
EMC(EMC_RDV) = params->emc_rdv;
EMC(EMC_RDV_MASK) = params->emc_rdv_mask;
EMC(EMC_RDV_EARLY) = params->emc_rdv_early;
EMC(EMC_RDV_EARLY_MASK) = params->emc_rdv_early_mask;
EMC(EMC_QPOP) = params->emc_qpop;
EMC(EMC_REFRESH) = params->emc_refresh;
EMC(EMC_BURST_REFRESH_NUM) = params->emc_burst_refresh_num;
EMC(EMC_PRE_REFRESH_REQ_CNT) = params->emc_prerefresh_req_cnt;
EMC(EMC_PDEX2WR) = params->emc_pdex2wr;
EMC(EMC_PDEX2RD) = params->emc_pdex2rd;
EMC(EMC_PCHG2PDEN) = params->emc_pchg2pden;
EMC(EMC_ACT2PDEN) = params->emc_act2pden;
EMC(EMC_AR2PDEN) = params->emc_ar2pden;
EMC(EMC_RW2PDEN) = params->emc_rw2pden;
EMC(EMC_CKE2PDEN) = params->emc_cke2pden;
EMC(EMC_PDEX2CKE) = params->emc_pdex2che;
EMC(EMC_PDEX2MRR) = params->emc_pdex2mrr;
EMC(EMC_TXSR) = params->emc_txsr;
EMC(EMC_TXSRDLL) = params->emc_txsr_dll;
EMC(EMC_TCKE) = params->emc_tcke;
EMC(EMC_TCKESR) = params->emc_tckesr;
EMC(EMC_TPD) = params->emc_tpd;
EMC(EMC_TFAW) = params->emc_tfaw;
EMC(EMC_TRPAB) = params->emc_trpab;
EMC(EMC_TCLKSTABLE) = params->emc_tclkstable;
EMC(EMC_TCLKSTOP) = params->emc_tclkstop;
EMC(EMC_TREFBW) = params->emc_trefbw;
EMC(EMC_ODT_WRITE) = params->emc_odt_write;
EMC(EMC_CFG_DIG_DLL) = params->emc_cfg_dig_dll;
EMC(EMC_CFG_DIG_DLL_PERIOD) = params->emc_cfg_dig_dll_period;
// Don't write CFG_ADR_EN (bit 1) here - lock bit written later.
EMC(EMC_FBIO_SPARE) = params->emc_fbio_spare & 0xFFFFFFFD;
EMC(EMC_CFG_RSV) = params->emc_cfg_rsv;
EMC(EMC_PMC_SCRATCH1) = params->emc_pmc_scratch1;
EMC(EMC_PMC_SCRATCH2) = params->emc_pmc_scratch2;
EMC(EMC_PMC_SCRATCH3) = params->emc_pmc_scratch3;
EMC(EMC_ACPD_CONTROL) = params->emc_acpd_control;
EMC(EMC_TXDSRVTTGEN) = params->emc_txdsrvttgen;
// Set pipe bypass enable bits before sending any DRAM commands.
EMC(EMC_CFG) = (params->emc_cfg & 0xE) | 0x3C00000;
// Patch BootROM.
if (params->boot_rom_patch_control & (1 << 31))
{
*(vu32 *)(APB_MISC_BASE + params->boot_rom_patch_control * 4) = params->boot_rom_patch_data;
MC(MC_TIMING_CONTROL) = 1; // Trigger MC timing update.
}
// Release SEL_DPD_CMD.
PMC(APBDEV_PMC_IO_DPD3_REQ) = ((params->emc_pmc_scratch1 & 0x3FFFFFFF) | 0x40000000) & 0xCFFF0000;
usleep(params->pmc_io_dpd3_req_wait);
// Set autocal interval if not configured.
if (!params->emc_auto_cal_interval)
EMC(EMC_AUTO_CAL_CONFIG) = params->emc_auto_cal_config | 0x200;
EMC(EMC_PMACRO_BRICK_CTRL_RFU2) = params->emc_pmacro_brick_ctrl_rfu2;
// ZQ CAL setup (not actually issuing ZQ CAL now).
if (params->emc_zcal_warm_cold_boot_enables & 1)
{
if (params->memory_type == MEMORY_TYPE_DDR3L)
EMC(EMC_ZCAL_WAIT_CNT) = params->emc_zcal_wait_cnt << 3;
if (params->memory_type == MEMORY_TYPE_LPDDR4)
{
EMC(EMC_ZCAL_WAIT_CNT) = params->emc_zcal_wait_cnt;
EMC(EMC_ZCAL_MRW_CMD) = params->emc_zcal_mrw_cmd;
}
}
EMC(EMC_TIMING_CONTROL) = 1; // Trigger timing update so above writes take place.
usleep(params->emc_timing_control_wait);
// Deassert HOLD_CKE_LOW.
PMC(APBDEV_PMC_DDR_CNTRL) &= 0xFFF8007F;
usleep(params->pmc_ddr_ctrl_wait);
// Set clock enable signal.
u32 pin_gpio_cfg = (params->emc_pin_gpio_enable << 16) | (params->emc_pin_gpio << 12);
if (params->memory_type == MEMORY_TYPE_DDR3L || params->memory_type == MEMORY_TYPE_LPDDR4)
{
EMC(EMC_PIN) = pin_gpio_cfg;
(void)EMC(EMC_PIN);
usleep(params->emc_pin_extra_wait + 200);
EMC(EMC_PIN) = pin_gpio_cfg | 0x100;
(void)EMC(EMC_PIN);
}
if (params->memory_type == MEMORY_TYPE_LPDDR4)
usleep(params->emc_pin_extra_wait + 2000);
else if (params->memory_type == MEMORY_TYPE_DDR3L)
usleep(params->emc_pin_extra_wait + 500);
// Enable clock enable signal.
EMC(EMC_PIN) = pin_gpio_cfg | 0x101;
(void)EMC(EMC_PIN);
usleep(params->emc_pin_program_wait);
// Send NOP (trigger just needs to be non-zero).
if (params->memory_type != MEMORY_TYPE_LPDDR4)
EMC(EMC_NOP) = (params->emc_dev_select << 30) + 1;
// On coldboot w/LPDDR2/3, wait 200 uSec after asserting CKE high.
if (params->memory_type == MEMORY_TYPE_LPDDR2)
usleep(params->emc_pin_extra_wait + 200);
// Init zq calibration,
if (params->memory_type == MEMORY_TYPE_LPDDR4)
{
// Patch 6 using BCT spare variables.
if (params->emc_bct_spare10)
*(vu32 *)params->emc_bct_spare10 = params->emc_bct_spare11;
// Write mode registers.
EMC(EMC_MRW2) = params->emc_mrw2;
EMC(EMC_MRW) = params->emc_mrw1;
EMC(EMC_MRW3) = params->emc_mrw3;
EMC(EMC_MRW4) = params->emc_mrw4;
EMC(EMC_MRW6) = params->emc_mrw6;
EMC(EMC_MRW14) = params->emc_mrw14;
EMC(EMC_MRW8) = params->emc_mrw8;
EMC(EMC_MRW12) = params->emc_mrw12;
EMC(EMC_MRW9) = params->emc_mrw9;
EMC(EMC_MRW13) = params->emc_mrw13;
if (params->emc_zcal_warm_cold_boot_enables & 1)
{
// Issue ZQCAL start, device 0.
EMC(EMC_ZQ_CAL) = params->emc_zcal_init_dev0;
usleep(params->emc_zcal_init_wait);
// Issue ZQCAL latch.
EMC(EMC_ZQ_CAL) = params->emc_zcal_init_dev0 ^ 3;
// Same for device 1.
if (!(params->emc_dev_select & 2))
{
EMC(EMC_ZQ_CAL) = params->emc_zcal_init_dev1;
usleep(params->emc_zcal_init_wait);
EMC(EMC_ZQ_CAL) = params->emc_zcal_init_dev1 ^ 3;
}
}
}
// Set package and DPD pad control.
PMC(APBDEV_PMC_DDR_CFG) = params->pmc_ddr_cfg;
// Start periodic ZQ calibration (LPDDRx only).
if (params->memory_type && params->memory_type <= MEMORY_TYPE_LPDDR4)
{
EMC(EMC_ZCAL_INTERVAL) = params->emc_zcal_interval;
EMC(EMC_ZCAL_WAIT_CNT) = params->emc_zcal_wait_cnt;
EMC(EMC_ZCAL_MRW_CMD) = params->emc_zcal_mrw_cmd;
}
// Patch 7 using BCT spare variables.
if (params->emc_bct_spare12)
*(vu32 *)params->emc_bct_spare12 = params->emc_bct_spare13;
EMC(EMC_TIMING_CONTROL) = 1; // Trigger timing update so above writes take place.
if (params->emc_extra_refresh_num)
EMC(EMC_REF) = (((1 << params->emc_extra_refresh_num) - 1) << 8) | (params->emc_dev_select << 30) | 3;
// Enable refresh.
EMC(EMC_REFCTRL) = params->emc_dev_select | 0x80000000;
EMC(EMC_DYN_SELF_REF_CONTROL) = params->emc_dyn_self_ref_control;
EMC(EMC_CFG_UPDATE) = params->emc_cfg_update;
EMC(EMC_CFG) = params->emc_cfg;
EMC(EMC_FDPD_CTRL_DQ) = params->emc_fdpd_ctrl_dq;
EMC(EMC_FDPD_CTRL_CMD) = params->emc_fdpd_ctrl_cmd;
EMC(EMC_SEL_DPD_CTRL) = params->emc_sel_dpd_ctrl;
// Write addr swizzle lock bit.
EMC(EMC_FBIO_SPARE) = params->emc_fbio_spare | 2;
EMC(EMC_TIMING_CONTROL) = 1; // Re-trigger timing to latch power saving functions.
// Enable EMC pipe clock gating.
EMC(EMC_CFG_PIPE_CLK) = params->emc_cfg_pipe_clk;
// Depending on freqency, enable CMD/CLK fdpd.
EMC(EMC_FDPD_CTRL_CMD_NO_RAMP) = params->emc_fdpd_ctrl_cmd_no_ramp;
// Enable arbiter.
SYSREG(AHB_ARBITRATION_XBAR_CTRL) = (SYSREG(AHB_ARBITRATION_XBAR_CTRL) & 0xFFFEFFFF) | (params->ahb_arbitration_xbar_ctrl_meminit_done << 16);
// Lock carveouts per BCT cfg.
MC(MC_VIDEO_PROTECT_REG_CTRL) = params->mc_video_protect_write_access;
MC(MC_SEC_CARVEOUT_REG_CTRL) = params->mc_sec_carveout_protect_write_access;
MC(MC_MTS_CARVEOUT_REG_CTRL) = params->mc_mts_carveout_reg_ctrl;
// Disable write access to a bunch of EMC registers.
MC(MC_EMEM_CFG_ACCESS_CTRL) = 1;
}
#ifndef CONFIG_SDRAM_COMPRESS_CFG
static void _sdram_patch_model_params(u32 dramid, u32 *params)
{
for (u32 i = 0; i < sizeof(sdram_cfg_vendor_patches) / sizeof(sdram_vendor_patch_t); i++)
if (sdram_cfg_vendor_patches[i].dramid & DRAM_ID(dramid))
params[sdram_cfg_vendor_patches[i].addr] = sdram_cfg_vendor_patches[i].val;
}
#endif
sdram_params_t *sdram_get_params()
{
// Check if id is proper.
u32 dramid = _get_sdram_id();
if (dramid > 6)
dramid = 0;
#ifdef CONFIG_SDRAM_COMPRESS_CFG
u8 *buf = (u8 *)SDRAM_PARAMS_ADDR;
LZ_Uncompress(_dram_cfg_lz, buf, sizeof(_dram_cfg_lz));
return (sdram_params_t *)&buf[sizeof(sdram_params_t) * dramid];
#else
sdram_params_t *buf = (sdram_params_t *)SDRAM_PARAMS_ADDR;
memcpy(buf, &_dram_cfg_0_samsung_4gb, sizeof(sdram_params_t));
switch (dramid)
{
case DRAM_4GB_SAMSUNG_K4F6E304HB_MGCH:
case DRAM_4GB_MICRON_MT53B512M32D2NP_062_WT:
break;
case DRAM_4GB_HYNIX_H9HCNNNBPUMLHR_NLN:
case DRAM_6GB_SAMSUNG_K4FHE3D4HM_MFCH:
#ifdef CONFIG_SDRAM_COPPER_SUPPORT
case DRAM_4GB_COPPER_SAMSUNG:
case DRAM_4GB_COPPER_HYNIX:
case DRAM_4GB_COPPER_MICRON:
#endif
_sdram_patch_model_params(dramid, (u32 *)buf);
break;
}
return buf;
#endif
}
/*
* Function: sdram_get_params_patched
*
* This code implements a warmboot exploit. Warmboot, that is actually so hot, it burns Nvidia once again.
* If the boot_rom_patch_control's MSB is set, it uses it as an index to
* APB_MISC_BASE (u32 array) and sets it to the value of boot_rom_patch_data.
* (The MSB falls out when it gets multiplied by sizeof(u32)).
* Because the bootrom does not do any boundary checks, it lets us write anywhere and anything.
* Ipatch hardware let us apply 12 changes to the bootrom and can be changed any time.
* The first patch is not needed any more when the exploit is triggered, so we overwrite that.
* 0x10459E is the address where it returns an error when the signature is not valid.
* We change that to MOV R0, #0, so we pass the check.
*
* Note: The modulus in the header must match and validated.
*/
sdram_params_t *sdram_get_params_patched()
{
#define IPATCH_CONFIG(addr, data) (((addr - 0x100000) / 2) << 16 | (data & 0xffff))
sdram_params_t *sdram_params = sdram_get_params();
// Disable Warmboot signature check.
sdram_params->boot_rom_patch_control = (1 << 31) | (((IPATCH_BASE + 4) - APB_MISC_BASE) / 4);
sdram_params->boot_rom_patch_data = IPATCH_CONFIG(0x10459E, 0x2000);
/*
// Disable SBK lock.
sdram_params->emc_bct_spare8 = (IPATCH_BASE + 7 * 4);
sdram_params->emc_bct_spare9 = IPATCH_CONFIG(0x10210E, 0x2000);
// Disable bootrom read lock.
sdram_params->emc_bct_spare10 = (IPATCH_BASE + 10 * 4);
sdram_params->emc_bct_spare11 = IPATCH_CONFIG(0x100FDC, 0xF000);
sdram_params->emc_bct_spare12 = (IPATCH_BASE + 11 * 4);
sdram_params->emc_bct_spare13 = IPATCH_CONFIG(0x100FDE, 0xE320);
*/
return sdram_params;
}
void sdram_init()
{
const sdram_params_t *params = (const sdram_params_t *)sdram_get_params();
// Set DRAM voltage.
i2c_send_byte(I2C_5, MAX77620_I2C_ADDR, MAX77620_REG_SD_CFG2, 0x05);
max77620_regulator_set_voltage(REGULATOR_SD1, 1100000);
// VDDP Select.
PMC(APBDEV_PMC_VDDP_SEL) = params->pmc_vddp_sel;
usleep(params->pmc_vddp_sel_wait);
// Set DDR pad voltage.
PMC(APBDEV_PMC_DDR_PWR) = PMC(APBDEV_PMC_DDR_PWR);
// Turn on MEM IO Power.
PMC(APBDEV_PMC_NO_IOPOWER) = params->pmc_no_io_power;
PMC(APBDEV_PMC_REG_SHORT) = params->pmc_reg_short;
PMC(APBDEV_PMC_DDR_CNTRL) = params->pmc_ddr_ctrl;
// Patch 1 using BCT spare variables
if (params->emc_bct_spare0)
*(vu32 *)params->emc_bct_spare0 = params->emc_bct_spare1;
_sdram_config(params);
}
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