From 8d67c3685e3b4bea8524e2e25b1443b62a69352b Mon Sep 17 00:00:00 2001 From: Shengzhou Liu Date: Wed, 5 Mar 2014 15:04:48 +0800 Subject: powerpc/t2080rdb: Add T2080PCIe-RDB board support T2080PCIe-RDB is a Freescale Reference Design Board that hosts the T2080 SoC. It works in two mode: standalone mode and PCIe endpoint mode. T2080PCIe-RDB Feature Overview ------------------------------ Processor: - T2080 SoC integrating four 64-bit dual-threads e6500 cores up to 1.8GHz DDR Memory: - Single memory controller capable of supporting DDR3 and DDR3-LP devices - 72bit 4GB DDR3-LP SODIMM in slot Ethernet interfaces: - Two 10M/100M/1G RGMII ports on-board - Two 10Gbps SFP+ ports on-board - Two 10Gbps Base-T ports on-board Accelerator: - DPAA components consist of FMan, BMan, QMan, PME, DCE and SEC SerDes 16 lanes configuration: - SerDes-1 Lane A-B: to two 10G XFI fiber (MAC9 & MAC10) - SerDes-1 Lane C-D: to two 10G Base-T (MAC1 & MAC2) - SerDes-1 Lane E-H: to PCIe Goldfinger (PCIe4 x4, Gen3) - SerDes-2 Lane A-D: to PCIe Slot (PCIe1 x4, Gen2) - SerDes-2 Lane E-F: to C293 secure co-processor (PCIe2 x2) - SerDes-2 Lane G-H: to SATA1 & SATA2 IFC/Local Bus: - NOR: 128MB 16-bit NOR flash - NAND: 512MB 8-bit NAND flash - CPLD: for system controlling with programable header on-board eSPI: - 64MB N25Q512 SPI flash USB: - Two USB2.0 ports with internal PHY (both Type-A) PCIe: - One PCIe x4 gold-finger - One PCIe x4 connector - One PCIe x2 end-point device (C293 Crypto co-processor) SATA: - Two SATA 2.0 ports on-board SDHC: - support a TF-card on-board I2C: - Four I2C controllers. UART: - Dual 4-pins UART serial ports Signed-off-by: Shengzhou Liu Reviewed-by: York Sun --- board/freescale/t208xrdb/ddr.c | 112 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 112 insertions(+) create mode 100644 board/freescale/t208xrdb/ddr.c (limited to 'board/freescale/t208xrdb/ddr.c') diff --git a/board/freescale/t208xrdb/ddr.c b/board/freescale/t208xrdb/ddr.c new file mode 100644 index 00000000000..01e917398f9 --- /dev/null +++ b/board/freescale/t208xrdb/ddr.c @@ -0,0 +1,112 @@ +/* + * Copyright 2014 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 +#include +#include +#include +#include +#include +#include +#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; + + 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; +} -- cgit v1.2.3