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hekate/bootloader/mem/sdram.c

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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) & 0x38) >> 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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