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-rw-r--r--board/freescale/p3060qds/ddr.c248
1 files changed, 0 insertions, 248 deletions
diff --git a/board/freescale/p3060qds/ddr.c b/board/freescale/p3060qds/ddr.c
deleted file mode 100644
index 9affbf0..0000000
--- a/board/freescale/p3060qds/ddr.c
+++ /dev/null
@@ -1,248 +0,0 @@
-/*
- * Copyright 2009-2011 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 as published by the Free Software Foundation.
- */
-
-#include <common.h>
-#include <i2c.h>
-#include <hwconfig.h>
-#include <asm/mmu.h>
-#include <asm/fsl_ddr_sdram.h>
-#include <asm/fsl_ddr_dimm_params.h>
-#include <asm/fsl_law.h>
-
-#include "p3060qds.h"
-
-/*
- * 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;
- unsigned int lawbar1_target_id;
- 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;
- ddr_cfg_regs.ddr_cdr1 = DDR_CDR1_DHC_EN;
- fsl_ddr_set_memctl_regs(&ddr_cfg_regs, 0);
-
- /*
- * setup laws for DDR. If not interleaving, presuming half memory on
- * DDR1 and the other half on DDR2
- */
- if (fixed_ddr_parm_0[i].ddr_settings->cs[0].config & 0x20000000) {
- if (set_ddr_laws(CONFIG_SYS_DDR_SDRAM_BASE,
- ddr_size,
- LAW_TRGT_IF_DDR_INTRLV) < 0) {
- printf("ERROR setting Local Access Windows for DDR\n");
- return 0;
- }
- } else {
- lawbar1_target_id = LAW_TRGT_IF_DDR_1;
- if (set_ddr_laws(CONFIG_SYS_DDR_SDRAM_BASE,
- ddr_size,
- lawbar1_target_id) < 0) {
- printf("ERROR setting Local Access Windows for DDR\n");
- return 0;
- }
- }
- return ddr_size;
-}
-
-struct board_specific_params {
- u32 n_ranks;
- u32 datarate_mhz_high;
- u32 clk_adjust;
- u32 wrlvl_start;
- u32 cpo;
- u32 write_data_delay;
- u32 force_2T;
-};
-
-/*
- * This table contains all valid speeds we want to override with board
- * specific parameters. datarate_mhz_high values need to be in ascending order
- * for each n_ranks group.
- */
-static const struct board_specific_params udimm[] = {
- /*
- * memory controller 0
- * num| hi| clk| wrlvl | cpo |wrdata|2T
- * ranks| mhz|adjst| start | |delay |
- */
- {4, 850, 4, 6, 0xff, 2, 0},
- {4, 950, 5, 7, 0xff, 2, 0},
- {4, 1050, 5, 8, 0xff, 2, 0},
- {4, 1250, 5, 10, 0xff, 2, 0},
- {4, 1350, 5, 11, 0xff, 2, 0},
- {4, 1666, 5, 12, 0xff, 2, 0},
- {2, 850, 5, 6, 0xff, 2, 0},
- {2, 950, 5, 7, 0xff, 2, 0},
- {2, 1250, 4, 6, 0xff, 2, 0},
- {2, 1350, 5, 7, 0xff, 2, 0},
- {2, 1666, 5, 8, 0xff, 2, 0},
- {1, 850, 4, 5, 0xff, 2, 0},
- {1, 950, 4, 7, 0xff, 2, 0},
- {1, 1666, 4, 8, 0xff, 2, 0},
- {}
-};
-
-static const struct board_specific_params rdimm[] = {
- /*
- * memory controller 0
- * num| hi| clk| wrlvl | cpo |wrdata|2T
- * ranks| mhz|adjst| start | |delay |
- */
- {4, 850, 4, 6, 0xff, 2, 0},
- {4, 950, 5, 7, 0xff, 2, 0},
- {4, 1050, 5, 8, 0xff, 2, 0},
- {4, 1250, 5, 10, 0xff, 2, 0},
- {4, 1350, 5, 11, 0xff, 2, 0},
- {4, 1666, 5, 12, 0xff, 2, 0},
- {2, 850, 4, 6, 0xff, 2, 0},
- {2, 1050, 4, 7, 0xff, 2, 0},
- {2, 1666, 4, 8, 0xff, 2, 0},
- {1, 850, 4, 5, 0xff, 2, 0},
- {1, 950, 4, 7, 0xff, 2, 0},
- {1, 1666, 4, 8, 0xff, 2, 0},
- {}
-};
-
-void fsl_ddr_board_options(memctl_options_t *popts,
- dimm_params_t *pdimm,
- unsigned int ctrl_num)
-{
- const struct board_specific_params *pbsp, *pbsp_highest = NULL;
- ulong ddr_freq;
-
- if (ctrl_num) {
- printf("Wrong parameter for controller number %d", ctrl_num);
- return;
- }
- if (!pdimm->n_ranks)
- return;
-
- if (popts->registered_dimm_en)
- pbsp = rdimm;
- else
- pbsp = udimm;
-
- /* Get clk_adjust, cpo, write_data_delay,2T, 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) {
- if (ddr_freq <= pbsp->datarate_mhz_high) {
- popts->cpo_override = pbsp->cpo;
- popts->write_data_delay =
- pbsp->write_data_delay;
- popts->clk_adjust = pbsp->clk_adjust;
- popts->wrlvl_start = pbsp->wrlvl_start;
- popts->twoT_en = pbsp->force_2T;
- goto found;
- }
- pbsp_highest = pbsp;
- }
- pbsp++;
- }
-
- if (pbsp_highest) {
- printf("Error: board specific timing not found "
- "for data rate %lu MT/s!\n"
- "Trying to use the highest speed (%u) parameters\n",
- ddr_freq, pbsp_highest->datarate_mhz_high);
- popts->cpo_override = pbsp_highest->cpo;
- popts->write_data_delay = pbsp_highest->write_data_delay;
- popts->clk_adjust = pbsp_highest->clk_adjust;
- popts->wrlvl_start = pbsp_highest->wrlvl_start;
- popts->twoT_en = pbsp_highest->force_2T;
- } else {
- panic("DIMM is not supported by this board");
- }
-
-
-found:
-
- /*
- * The datasheet of HMT125U7BFR8C-H9 blocks CL=7 as reservered.
- * However SPD still claims CL=7 is supported. Extensive tests
- * confirmed this board cannot work stably with CL=7 with this
- * particular DIMM.
- */
- if (ddr_freq >= 800 && ddr_freq < 1066 && \
- !strncmp(pdimm[0].mpart, "HMT125U7BFR8C-H9", 16)) {
- popts->cas_latency_override = 1;
- popts->cas_latency_override_value = 8;
- debug("Override CL to 8\n");
- }
- /*
- * 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 = 60 Ohm */
- popts->ddr_cdr1 = DDR_CDR1_DHC_EN;
-}
-
-phys_size_t initdram(int board_type)
-{
- phys_size_t dram_size;
-
- puts("Initializing....");
-
- if (fsl_use_spd()) {
- puts("using SPD\n");
- dram_size = fsl_ddr_sdram();
- } else {
- puts("using fixed parameters\n");
- dram_size = fixed_sdram();
- }
-
- dram_size = setup_ddr_tlbs(dram_size / 0x100000);
- dram_size *= 0x100000;
-
- debug(" DDR: ");
- return dram_size;
-}
generated by cgit v1.1 at 2024-11-29 12:00:54 +0000