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u-boot-brain/board/freescale/p1_p2_rdb_pc/ddr.c
Simon Glass 2189d5f1e8 Move strtomhz() to vsprintf.h 
At present this function sits in its own file but it does not really
justify it. There are similar string functions in vsprintf.h, so move it
there. Also add the missing function comment.

Use the vsprintf.h include file explicitly where needed.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2019-12-02 18:23:09 -05:00

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// SPDX-License-Identifier: GPL-2.0
/*
* Copyright 2010-2011 Freescale Semiconductor, Inc.
*/
#include <common.h>
#include <vsprintf.h>
#include <asm/mmu.h>
#include <asm/immap_85xx.h>
#include <asm/processor.h>
#include <fsl_ddr_sdram.h>
#include <fsl_ddr_dimm_params.h>
#include <asm/io.h>
#include <asm/fsl_law.h>
#ifdef CONFIG_SYS_DDR_RAW_TIMING
#if defined(CONFIG_P1020RDB_PROTO) || \
defined(CONFIG_TARGET_P1021RDB) || \
defined(CONFIG_TARGET_P1020UTM)
/* Micron MT41J256M8_187E */
dimm_params_t ddr_raw_timing = {
.n_ranks = 1,
.rank_density = 1073741824u,
.capacity = 1073741824u,
.primary_sdram_width = 32,
.ec_sdram_width = 0,
.registered_dimm = 0,
.mirrored_dimm = 0,
.n_row_addr = 15,
.n_col_addr = 10,
.n_banks_per_sdram_device = 8,
.edc_config = 0,
.burst_lengths_bitmask = 0x0c,
.tckmin_x_ps = 1870,
.caslat_x = 0x1e << 4, /* 5,6,7,8 */
.taa_ps = 13125,
.twr_ps = 15000,
.trcd_ps = 13125,
.trrd_ps = 7500,
.trp_ps = 13125,
.tras_ps = 37500,
.trc_ps = 50625,
.trfc_ps = 160000,
.twtr_ps = 7500,
.trtp_ps = 7500,
.refresh_rate_ps = 7800000,
.tfaw_ps = 37500,
};
#elif defined(CONFIG_TARGET_P2020RDB)
/* Micron MT41J128M16_15E */
dimm_params_t ddr_raw_timing = {
.n_ranks = 1,
.rank_density = 1073741824u,
.capacity = 1073741824u,
.primary_sdram_width = 64,
.ec_sdram_width = 0,
.registered_dimm = 0,
.mirrored_dimm = 0,
.n_row_addr = 14,
.n_col_addr = 10,
.n_banks_per_sdram_device = 8,
.edc_config = 0,
.burst_lengths_bitmask = 0x0c,
.tckmin_x_ps = 1500,
.caslat_x = 0x7e << 4, /* 5,6,7,8,9,10 */
.taa_ps = 13500,
.twr_ps = 15000,
.trcd_ps = 13500,
.trrd_ps = 6000,
.trp_ps = 13500,
.tras_ps = 36000,
.trc_ps = 49500,
.trfc_ps = 160000,
.twtr_ps = 7500,
.trtp_ps = 7500,
.refresh_rate_ps = 7800000,
.tfaw_ps = 30000,
};
#elif (defined(CONFIG_TARGET_P1020MBG) || defined(CONFIG_TARGET_P1020RDB_PD))
/* Micron MT41J512M8_187E */
dimm_params_t ddr_raw_timing = {
.n_ranks = 2,
.rank_density = 1073741824u,
.capacity = 2147483648u,
.primary_sdram_width = 32,
.ec_sdram_width = 0,
.registered_dimm = 0,
.mirrored_dimm = 0,
.n_row_addr = 15,
.n_col_addr = 10,
.n_banks_per_sdram_device = 8,
.edc_config = 0,
.burst_lengths_bitmask = 0x0c,
.tckmin_x_ps = 1870,
.caslat_x = 0x1e << 4, /* 5,6,7,8 */
.taa_ps = 13125,
.twr_ps = 15000,
.trcd_ps = 13125,
.trrd_ps = 7500,
.trp_ps = 13125,
.tras_ps = 37500,
.trc_ps = 50625,
.trfc_ps = 160000,
.twtr_ps = 7500,
.trtp_ps = 7500,
.refresh_rate_ps = 7800000,
.tfaw_ps = 37500,
};
#elif defined(CONFIG_TARGET_P1020RDB_PC)
/*
* Samsung K4B2G0846C-HCF8
* The following timing are for "downshift"
* i.e. to use CL9 part as CL7
* otherwise, tAA, tRCD, tRP will be 13500ps
* and tRC will be 49500ps
*/
dimm_params_t ddr_raw_timing = {
.n_ranks = 1,
.rank_density = 1073741824u,
.capacity = 1073741824u,
.primary_sdram_width = 32,
.ec_sdram_width = 0,
.registered_dimm = 0,
.mirrored_dimm = 0,
.n_row_addr = 15,
.n_col_addr = 10,
.n_banks_per_sdram_device = 8,
.edc_config = 0,
.burst_lengths_bitmask = 0x0c,
.tckmin_x_ps = 1875,
.caslat_x = 0x1e << 4, /* 5,6,7,8 */
.taa_ps = 13125,
.twr_ps = 15000,
.trcd_ps = 13125,
.trrd_ps = 7500,
.trp_ps = 13125,
.tras_ps = 37500,
.trc_ps = 50625,
.trfc_ps = 160000,
.twtr_ps = 7500,
.trtp_ps = 7500,
.refresh_rate_ps = 7800000,
.tfaw_ps = 37500,
};
#elif defined(CONFIG_TARGET_P1024RDB) || \
defined(CONFIG_TARGET_P1025RDB)
/*
* Samsung K4B2G0846C-HCH9
* The following timing are for "downshift"
* i.e. to use CL9 part as CL7
* otherwise, tAA, tRCD, tRP will be 13500ps
* and tRC will be 49500ps
*/
dimm_params_t ddr_raw_timing = {
.n_ranks = 1,
.rank_density = 1073741824u,
.capacity = 1073741824u,
.primary_sdram_width = 32,
.ec_sdram_width = 0,
.registered_dimm = 0,
.mirrored_dimm = 0,
.n_row_addr = 15,
.n_col_addr = 10,
.n_banks_per_sdram_device = 8,
.edc_config = 0,
.burst_lengths_bitmask = 0x0c,
.tckmin_x_ps = 1500,
.caslat_x = 0x3e << 4, /* 5,6,7,8,9 */
.taa_ps = 13125,
.twr_ps = 15000,
.trcd_ps = 13125,
.trrd_ps = 6000,
.trp_ps = 13125,
.tras_ps = 36000,
.trc_ps = 49125,
.trfc_ps = 160000,
.twtr_ps = 7500,
.trtp_ps = 7500,
.refresh_rate_ps = 7800000,
.tfaw_ps = 30000,
};
#else
#error Missing raw timing data for this board
#endif
int fsl_ddr_get_dimm_params(dimm_params_t *pdimm,
unsigned int controller_number,
unsigned int dimm_number)
{
const char dimm_model[] = "Fixed DDR on board";
if ((controller_number == 0) && (dimm_number == 0)) {
memcpy(pdimm, &ddr_raw_timing, sizeof(dimm_params_t));
memset(pdimm->mpart, 0, sizeof(pdimm->mpart));
memcpy(pdimm->mpart, dimm_model, sizeof(dimm_model) - 1);
}
return 0;
}
#endif /* CONFIG_SYS_DDR_RAW_TIMING */
#ifdef CONFIG_SYS_DDR_CS0_BNDS
/* Fixed sdram init -- doesn't use serial presence detect. */
phys_size_t fixed_sdram(void)
{
sys_info_t sysinfo;
char buf[32];
size_t ddr_size;
fsl_ddr_cfg_regs_t ddr_cfg_regs = {
.cs[0].bnds = CONFIG_SYS_DDR_CS0_BNDS,
.cs[0].config = CONFIG_SYS_DDR_CS0_CONFIG,
.cs[0].config_2 = CONFIG_SYS_DDR_CS0_CONFIG_2,
#if CONFIG_CHIP_SELECTS_PER_CTRL > 1
.cs[1].bnds = CONFIG_SYS_DDR_CS1_BNDS,
.cs[1].config = CONFIG_SYS_DDR_CS1_CONFIG,
.cs[1].config_2 = CONFIG_SYS_DDR_CS1_CONFIG_2,
#endif
.timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3,
.timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0,
.timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1,
.timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2,
.ddr_sdram_cfg = CONFIG_SYS_DDR_CONTROL,
.ddr_sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL_2,
.ddr_sdram_mode = CONFIG_SYS_DDR_MODE_1,
.ddr_sdram_mode_2 = CONFIG_SYS_DDR_MODE_2,
.ddr_sdram_md_cntl = CONFIG_SYS_DDR_MODE_CONTROL,
.ddr_sdram_interval = CONFIG_SYS_DDR_INTERVAL,
.ddr_data_init = CONFIG_SYS_DDR_DATA_INIT,
.ddr_sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL,
.ddr_init_addr = CONFIG_SYS_DDR_INIT_ADDR,
.ddr_init_ext_addr = CONFIG_SYS_DDR_INIT_EXT_ADDR,
.timing_cfg_4 = CONFIG_SYS_DDR_TIMING_4,
.timing_cfg_5 = CONFIG_SYS_DDR_TIMING_5,
.ddr_zq_cntl = CONFIG_SYS_DDR_ZQ_CONTROL,
.ddr_wrlvl_cntl = CONFIG_SYS_DDR_WRLVL_CONTROL,
.ddr_sr_cntr = CONFIG_SYS_DDR_SR_CNTR,
.ddr_sdram_rcw_1 = CONFIG_SYS_DDR_RCW_1,
.ddr_sdram_rcw_2 = CONFIG_SYS_DDR_RCW_2
};
get_sys_info(&sysinfo);
printf("Configuring DDR for %s MT/s data rate\n",
strmhz(buf, sysinfo.freq_ddrbus));
ddr_size = CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
fsl_ddr_set_memctl_regs(&ddr_cfg_regs, 0, 0);
if (set_ddr_laws(CONFIG_SYS_DDR_SDRAM_BASE,
ddr_size, LAW_TRGT_IF_DDR_1) < 0) {
printf("ERROR setting Local Access Windows for DDR\n");
return 0;
};
return ddr_size;
}
#endif
void fsl_ddr_board_options(memctl_options_t *popts,
dimm_params_t *pdimm,
unsigned int ctrl_num)
{
int i;
popts->clk_adjust = 6;
popts->cpo_override = 0x1f;
popts->write_data_delay = 2;
popts->half_strength_driver_enable = 1;
/* Write leveling override */
popts->wrlvl_en = 1;
popts->wrlvl_override = 1;
popts->wrlvl_sample = 0xf;
popts->wrlvl_start = 0x8;
popts->trwt_override = 1;
popts->trwt = 0;
if (pdimm->primary_sdram_width == 64)
popts->data_bus_width = 0;
else if (pdimm->primary_sdram_width == 32)
popts->data_bus_width = 1;
else
printf("Error in DDR bus width configuration!\n");
for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
popts->cs_local_opts[i].odt_rd_cfg = FSL_DDR_ODT_NEVER;
popts->cs_local_opts[i].odt_wr_cfg = FSL_DDR_ODT_CS;
}
}
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