diff options
author | Shengzhou Liu <Shengzhou.Liu@freescale.com> | 2014-02-21 05:16:19 (GMT) |
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committer | York Sun <yorksun@freescale.com> | 2014-02-24 23:23:01 (GMT) |
commit | 254887a57e93a818a10d95451a8ec29cb30c21f4 (patch) | |
tree | 91e95a7fa2c651a77f686cf86599ca773dbd1a0f /board/freescale/t208xqds/ddr.c | |
parent | 35c471e509465366bbf0b92a589b5cdc69081a7d (diff) | |
download | u-boot-254887a57e93a818a10d95451a8ec29cb30c21f4.tar.xz |
powerpc/t2081qds: Add T2081 QDS board support
T2081 QDS is a high-performance computing evaluation, development and
test platform supporting the T2081 QorIQ Power Architecture processor.
T2081QDS board Overview
-----------------------
- T2081 SoC integrating four 64-bit dual-threads e6500 cores up to 1.8GHz
- 2MB shared L2 and 512KB L3 CoreNet platform cache (CPC)
- CoreNet fabric supporting coherent and noncoherent transactions with
prioritization and bandwidth allocation
- 32-/64-bit DDR3/DDR3LP SDRAM memory controller with ECC and interleaving
- Ethernet interfaces:
- Two on-board 10M/100M/1G bps RGMII ports
- Two 10Gbps XFI with on-board SFP+ cage
- 1Gbps/2.5Gbps SGMII Riser card
- 10Gbps XAUI Riser card
- Accelerator:
- DPAA components consist of FMan, BMan, QMan, PME, DCE and SEC
- SerDes:
- 8 lanes up to 10.3125GHz
- Supports SGMII, HiGig, XFI, XAUI and Aurora debug,
- IFC:
- 512MB NOR Flash, 2GB NAND Flash, PromJet debug port and Qixis FPGA
- eSPI:
- Three SPI flash (16MB N25Q128A + 16MB EN25S64 + 512KB SST25WF040)
- USB:
- Two USB2.0 ports with internal PHY (one Type-A + one micro Type mini-AB)
- PCIe:
- Four PCI Express controllers (two PCIe 2.0 and two PCIe 3.0 with SR-IOV)
- eSDHC:
- Supports various SD/SDHC/SDXC/eMMC devices with adapter cards and
voltage translators
- I2C:
- Four I2C controllers.
- UART:
- Dual 4-pins UART serial ports
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
Diffstat (limited to 'board/freescale/t208xqds/ddr.c')
-rw-r--r-- | board/freescale/t208xqds/ddr.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/board/freescale/t208xqds/ddr.c b/board/freescale/t208xqds/ddr.c new file mode 100644 index 0000000..ed1334d --- /dev/null +++ b/board/freescale/t208xqds/ddr.c @@ -0,0 +1,119 @@ +/* + * Copyright 2013 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 or later as published by the Free Software Foundation. + */ + +#include <common.h> +#include <i2c.h> +#include <hwconfig.h> +#include <asm/mmu.h> +#include <fsl_ddr_sdram.h> +#include <fsl_ddr_dimm_params.h> +#include <asm/fsl_law.h> +#include "ddr.h" + +DECLARE_GLOBAL_DATA_PTR; + +void fsl_ddr_board_options(memctl_options_t *popts, + dimm_params_t *pdimm, + unsigned int ctrl_num) +{ + const struct board_specific_parameters *pbsp, *pbsp_highest = NULL; + ulong ddr_freq; + + if (ctrl_num > 1) { + printf("Not supported controller number %d\n", ctrl_num); + return; + } + if (!pdimm->n_ranks) + return; + + /* + * we use identical timing for all slots. If needed, change the code + * to pbsp = rdimms[ctrl_num] or pbsp = udimms[ctrl_num]; + */ + if (popts->registered_dimm_en) + pbsp = rdimms[0]; + else + pbsp = udimms[0]; + + /* Get clk_adjust, wrlvl_start, wrlvl_ctl, according to the board ddr + * freqency and n_banks specified in board_specific_parameters table. + */ + ddr_freq = get_ddr_freq(0) / 1000000; + while (pbsp->datarate_mhz_high) { + if (pbsp->n_ranks == pdimm->n_ranks && + (pdimm->rank_density >> 30) >= pbsp->rank_gb) { + if (ddr_freq <= pbsp->datarate_mhz_high) { + popts->clk_adjust = pbsp->clk_adjust; + popts->wrlvl_start = pbsp->wrlvl_start; + popts->wrlvl_ctl_2 = pbsp->wrlvl_ctl_2; + popts->wrlvl_ctl_3 = pbsp->wrlvl_ctl_3; + goto found; + } + pbsp_highest = pbsp; + } + pbsp++; + } + + if (pbsp_highest) { + printf("Error: board specific timing not found"); + printf("for data rate %lu MT/s\n", ddr_freq); + printf("Trying to use the highest speed (%u) parameters\n", + pbsp_highest->datarate_mhz_high); + popts->clk_adjust = pbsp_highest->clk_adjust; + popts->wrlvl_start = pbsp_highest->wrlvl_start; + popts->wrlvl_ctl_2 = pbsp->wrlvl_ctl_2; + popts->wrlvl_ctl_3 = pbsp->wrlvl_ctl_3; + } else { + panic("DIMM is not supported by this board"); + } +found: + debug("Found timing match: n_ranks %d, data rate %d, rank_gb %d\n" + "\tclk_adjust %d, wrlvl_start %d, wrlvl_ctrl_2 0x%x, " + "wrlvl_ctrl_3 0x%x\n", + pbsp->n_ranks, pbsp->datarate_mhz_high, pbsp->rank_gb, + pbsp->clk_adjust, pbsp->wrlvl_start, pbsp->wrlvl_ctl_2, + pbsp->wrlvl_ctl_3); + + /* + * Factors to consider for half-strength driver enable: + * - number of DIMMs installed + */ + popts->half_strength_driver_enable = 0; + /* + * Write leveling override + */ + popts->wrlvl_override = 1; + popts->wrlvl_sample = 0xf; + + /* + * Rtt and Rtt_WR override + */ + popts->rtt_override = 0; + + /* Enable ZQ calibration */ + popts->zq_en = 1; + + /* DHC_EN =1, ODT = 75 Ohm */ + popts->ddr_cdr1 = DDR_CDR1_DHC_EN | DDR_CDR1_ODT(DDR_CDR_ODT_75ohm); + popts->ddr_cdr2 = DDR_CDR2_ODT(DDR_CDR_ODT_75ohm); +} + +phys_size_t initdram(int board_type) +{ + phys_size_t dram_size; + + puts("Initializing....using SPD\n"); + + dram_size = fsl_ddr_sdram(); + + dram_size = setup_ddr_tlbs(dram_size / 0x100000); + dram_size *= 0x100000; + + puts(" DDR: "); + return dram_size; +} |