diff options
author | Prabhakar Kushwaha <prabhakar@freescale.com> | 2012-04-24 20:17:15 (GMT) |
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committer | Andy Fleming <afleming@freescale.com> | 2012-07-06 22:30:29 (GMT) |
commit | 7530d341c70511902fdb4b97f596ef3b9a9c52be (patch) | |
tree | 14f1cbeb3a7e323d81b81a637f9387238860ea29 /board/freescale/bsc9131rdb/ddr.c | |
parent | 19a8dbdc4583d8330ea44b40a102f7a57e3be936 (diff) | |
download | u-boot-7530d341c70511902fdb4b97f596ef3b9a9c52be.tar.xz |
powerpc/mpc85xx:Add BSC9131 RDB Support
BSC9131RDB is a Freescale reference design board for BSC9131 SoC. BSC9131 SOC
is an integrated device that targets Femto base station market. It combines
Power Architecture e500v2 and DSP StarCore SC3850 core technologies with
MAPLE-B2F baseband acceleration processing elements
BSC9131RDB Overview
-----------------
-1Gbyte DDR3 (on board DDR)
-128Mbyte 2K page size NAND Flash
-256 Kbit M24256 I2C EEPROM
-128 Mbit SPI Flash memory
-USB-ULPI
-eTSEC1: Connected to RGMII PHY
-eTSEC2: Connected to RGMII PHY
-DUART interface: supports one UARTs up to 115200 bps for console display
Apart from the above it also consists various peripherals to support DSP
functionalities.
This patch adds support for mainly Power side functionalities and peripherals
Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Signed-off-by: Akhil Goyal <Akhil.Goyal@freescale.com>
Signed-off-by: Rajan Srivastava <rajan.srivastava@freescale.com>
Signed-off-by: Poonam Aggrwal <poonam.aggrwal@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Diffstat (limited to 'board/freescale/bsc9131rdb/ddr.c')
-rw-r--r-- | board/freescale/bsc9131rdb/ddr.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/board/freescale/bsc9131rdb/ddr.c b/board/freescale/bsc9131rdb/ddr.c new file mode 100644 index 0000000..c753edf --- /dev/null +++ b/board/freescale/bsc9131rdb/ddr.c @@ -0,0 +1,187 @@ +/* + * Copyright 2011-2012 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that 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, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/mmu.h> +#include <asm/immap_85xx.h> +#include <asm/processor.h> +#include <asm/fsl_ddr_sdram.h> +#include <asm/fsl_ddr_dimm_params.h> +#include <asm/io.h> +#include <asm/fsl_law.h> + +DECLARE_GLOBAL_DATA_PTR; + +#ifndef CONFIG_SYS_DDR_RAW_TIMING +#define CONFIG_SYS_DRAM_SIZE 1024 + +fsl_ddr_cfg_regs_t ddr_cfg_regs_800 = { + .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, + .timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3_800, + .timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0_800, + .timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1_800, + .timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2_800, + .ddr_sdram_cfg = CONFIG_SYS_DDR_CONTROL, + .ddr_sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL_2, + .ddr_sdram_mode = CONFIG_SYS_DDR_MODE_1_800, + .ddr_sdram_mode_2 = CONFIG_SYS_DDR_MODE_2_800, + .ddr_sdram_md_cntl = CONFIG_SYS_DDR_MODE_CONTROL, + .ddr_sdram_interval = CONFIG_SYS_DDR_INTERVAL_800, + .ddr_data_init = CONFIG_MEM_INIT_VALUE, + .ddr_sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL_800, + .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_800, + .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 +}; + +fixed_ddr_parm_t fixed_ddr_parm_0[] = { + {750, 850, &ddr_cfg_regs_800}, + {0, 0, NULL} +}; + +unsigned long get_sdram_size(void) +{ + return get_ram_size(CONFIG_SYS_DDR_SDRAM_BASE, CONFIG_SYS_DRAM_SIZE); +} + +/* + * Fixed sdram init -- doesn't use serial presence detect. + */ +phys_size_t fixed_sdram(void) +{ + int i; + char buf[32]; + fsl_ddr_cfg_regs_t ddr_cfg_regs; + phys_size_t ddr_size; + ulong ddr_freq, ddr_freq_mhz; + + ddr_freq = get_ddr_freq(0); + ddr_freq_mhz = ddr_freq / 1000000; + + printf("Configuring DDR for %s MT/s data rate\n", + strmhz(buf, ddr_freq)); + + for (i = 0; fixed_ddr_parm_0[i].max_freq > 0; i++) { + if ((ddr_freq_mhz > fixed_ddr_parm_0[i].min_freq) && + (ddr_freq_mhz <= fixed_ddr_parm_0[i].max_freq)) { + memcpy(&ddr_cfg_regs, fixed_ddr_parm_0[i].ddr_settings, + sizeof(ddr_cfg_regs)); + break; + } + } + + if (fixed_ddr_parm_0[i].max_freq == 0) { + panic("Unsupported DDR data rate %s MT/s data rate\n", + strmhz(buf, ddr_freq)); + } + + ddr_size = (phys_size_t) CONFIG_SYS_SDRAM_SIZE * 1024 * 1024; + fsl_ddr_set_memctl_regs(&ddr_cfg_regs, 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; +} + +#else /* CONFIG_SYS_DDR_RAW_TIMING */ +/* Micron MT41J256M8HX-15E */ +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, +}; + +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; +} + +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; + + 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; + } +} + +#endif /* CONFIG_SYS_DDR_RAW_TIMING */ |