Use environment variable to active the interactive debugging.
Signed-off-by: York Sun yorksun@freescale.com --- arch/powerpc/cpu/mpc8xxx/ddr/Makefile | 6 +- arch/powerpc/cpu/mpc8xxx/ddr/interactive.c | 1882 ++++++++++++++++++++++++++++ arch/powerpc/cpu/mpc8xxx/ddr/main.c | 8 +- doc/README.fsl-ddr | 20 + 4 files changed, 1910 insertions(+), 6 deletions(-) create mode 100644 arch/powerpc/cpu/mpc8xxx/ddr/interactive.c
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/Makefile b/arch/powerpc/cpu/mpc8xxx/ddr/Makefile index cb7f856..4bd416a 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/Makefile +++ b/arch/powerpc/cpu/mpc8xxx/ddr/Makefile @@ -11,15 +11,15 @@ include $(TOPDIR)/config.mk LIB = $(obj)libddr.a
COBJS-$(CONFIG_FSL_DDR1) += main.o util.o ctrl_regs.o options.o \ - lc_common_dimm_params.o + lc_common_dimm_params.o interactive.o COBJS-$(CONFIG_FSL_DDR1) += ddr1_dimm_params.o
COBJS-$(CONFIG_FSL_DDR2) += main.o util.o ctrl_regs.o options.o \ - lc_common_dimm_params.o + lc_common_dimm_params.o interactive.o COBJS-$(CONFIG_FSL_DDR2) += ddr2_dimm_params.o
COBJS-$(CONFIG_FSL_DDR3) += main.o util.o ctrl_regs.o options.o \ - lc_common_dimm_params.o + lc_common_dimm_params.o interactive.o COBJS-$(CONFIG_FSL_DDR3) += ddr3_dimm_params.o
SRCS := $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c b/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c new file mode 100644 index 0000000..7d492a9 --- /dev/null +++ b/arch/powerpc/cpu/mpc8xxx/ddr/interactive.c @@ -0,0 +1,1882 @@ +/* + * Copyright 2010 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. + */ + +/* + * Generic driver for Freescale DDR/DDR2/DDR3 memory controller. + * Based on code from spd_sdram.c + * Author: James Yang [at freescale.com] + * Maintainer: York Sun yorksun@freescale.com + */ + +#include <common.h> +#include <linux/ctype.h> +#include <asm/types.h> + +#include <asm/fsl_ddr_sdram.h> +#include "ddr.h" + +/* Option parameter Structures */ +typedef struct { + const char *option_name; + size_t offset; +} options_strings_t; + +int do_reset(void *cmdtp, int flag, int argc, char *argv[]); +unsigned int check_fsl_memctl_config_regs(const fsl_ddr_cfg_regs_t *ddr); +const char *step_to_string(unsigned int step); + +static unsigned int picos_to_mhz(unsigned int picos) +{ + return 1000000 / picos; +} + +static int handle_uint_option_table(const options_strings_t *table, + int table_size, + u32 base, + const char *opt, + const char *val) +{ + unsigned int i; + unsigned int value, *ptr; + + for (i = 0; i < table_size; i++) { + if (strcmp(table[i].option_name, opt) == 0) { + value = simple_strtoul(val, NULL, 0); + ptr = (unsigned int *)(base + table[i].offset); + *ptr = value; + return 1; + } + } + + return 0; +} + +static int handle_ull_option_table(const options_strings_t *table, + int table_size, + u32 base, + const char *opt, + const char *val) +{ + unsigned int i; + unsigned long long value, *ptr; + + for (i = 0; i < table_size; i++) { + if (strcmp(table[i].option_name, opt) == 0) { + value = simple_strtoull(val, NULL, 0); + ptr = (unsigned long long *)(base + table[i].offset); + *ptr = value; + return 1; + } + } + + return 0; +} + +static void fsl_ddr_generic_edit(void *pdata, + void *pend, + unsigned int element_size, + unsigned int element_num, + unsigned int value) +{ + char *pcdata = (char *)pdata; /* BIG ENDIAN ONLY */ + + pcdata += element_num * element_size; + if ((pcdata + element_size) > (char *) pend) { + debug("trying to write past end of data\n"); + return; + } + + switch (element_size) { + case 1: + __raw_writeb(value, pcdata); + break; + case 2: + __raw_writew(value, pcdata); + break; + case 4: + __raw_writel(value, pcdata); + break; + default: + debug("unexpected element size %u\n", element_size); + break; + } +} + +static void fsl_ddr_spd_edit(fsl_ddr_info_t *pinfo, + unsigned int ctrl_num, + unsigned int dimm_num, + unsigned int element_num, + unsigned int value) +{ + generic_spd_eeprom_t *pspd; + + pspd = &(pinfo->spd_installed_dimms[ctrl_num][dimm_num]); + fsl_ddr_generic_edit(pspd, pspd + 1, + sizeof(char), element_num, value); +} +#define OPTIONS_UNIT(x) {#x, offsetof(common_timing_params_t, x)} +static void lowest_common_dimm_parameters_edit(fsl_ddr_info_t *pinfo, + unsigned int ctrl_num, + const char *optname_str, + const char *value_str) +{ + common_timing_params_t *p = &pinfo->common_timing_params[ctrl_num]; + + static const options_strings_t options_uint[] = { + OPTIONS_UNIT(tCKmin_X_ps), + OPTIONS_UNIT(tCKmax_ps), + OPTIONS_UNIT(tCKmax_max_ps), + OPTIONS_UNIT(tRCD_ps), + OPTIONS_UNIT(tRP_ps), + OPTIONS_UNIT(tRAS_ps), + OPTIONS_UNIT(tWR_ps), + OPTIONS_UNIT(tWTR_ps), + OPTIONS_UNIT(tRFC_ps), + OPTIONS_UNIT(tRRD_ps), + OPTIONS_UNIT(tRC_ps), + OPTIONS_UNIT(refresh_rate_ps), + OPTIONS_UNIT(tIS_ps), + OPTIONS_UNIT(tIH_ps), + OPTIONS_UNIT(tDS_ps), + OPTIONS_UNIT(tDH_ps), + OPTIONS_UNIT(tRTP_ps), + OPTIONS_UNIT(tDQSQ_max_ps), + OPTIONS_UNIT(tQHS_ps), + OPTIONS_UNIT(ndimms_present), + OPTIONS_UNIT(lowest_common_SPD_caslat), + OPTIONS_UNIT(highest_common_derated_caslat), + OPTIONS_UNIT(additive_latency), + OPTIONS_UNIT(all_DIMMs_burst_lengths_bitmask), + OPTIONS_UNIT(all_DIMMs_registered), + OPTIONS_UNIT(all_DIMMs_unbuffered), + OPTIONS_UNIT(all_DIMMs_ECC_capable), + }; + + static const unsigned int n_uint_opts = ARRAY_SIZE(options_uint); + + static const options_strings_t options_ull[] = { + OPTIONS_UNIT(total_mem), + OPTIONS_UNIT(base_address), + }; + + static const unsigned int n_ull_opts = ARRAY_SIZE(options_ull); + + if (handle_uint_option_table(options_uint, n_uint_opts, (u32) p, + optname_str, value_str)) + return; + + if (handle_ull_option_table(options_ull, n_ull_opts, (u32) p, + optname_str, value_str)) + return; + + printf("Error: couldn't find option string %s\n", optname_str); +} + +#undef OPTIONS_UNIT +#define OPTIONS_UNIT(x) {#x, offsetof(dimm_params_t, x)} + +static void fsl_ddr_dimm_parameters_edit(fsl_ddr_info_t *pinfo, + unsigned int ctrl_num, + unsigned int dimm_num, + const char *optname_str, + const char *value_str) +{ + dimm_params_t *p = &(pinfo->dimm_params[ctrl_num][dimm_num]); + + static const options_strings_t options_uint[] = { + OPTIONS_UNIT(n_ranks), + OPTIONS_UNIT(data_width), + OPTIONS_UNIT(primary_sdram_width), + OPTIONS_UNIT(ec_sdram_width), + OPTIONS_UNIT(registered_dimm), + + OPTIONS_UNIT(n_row_addr), + OPTIONS_UNIT(n_col_addr), + OPTIONS_UNIT(edc_config), + OPTIONS_UNIT(n_banks_per_sdram_device), + OPTIONS_UNIT(burst_lengths_bitmask), + OPTIONS_UNIT(row_density), + + OPTIONS_UNIT(tCKmin_X_ps), + OPTIONS_UNIT(tCKmin_X_minus_1_ps), + OPTIONS_UNIT(tCKmin_X_minus_2_ps), + OPTIONS_UNIT(tCKmax_ps), + + OPTIONS_UNIT(caslat_X), + OPTIONS_UNIT(caslat_X_minus_1), + OPTIONS_UNIT(caslat_X_minus_2), + + OPTIONS_UNIT(caslat_lowest_derated), + + OPTIONS_UNIT(tRCD_ps), + OPTIONS_UNIT(tRP_ps), + OPTIONS_UNIT(tRAS_ps), + OPTIONS_UNIT(tWR_ps), + OPTIONS_UNIT(tWTR_ps), + OPTIONS_UNIT(tRFC_ps), + OPTIONS_UNIT(tRRD_ps), + OPTIONS_UNIT(tRC_ps), + OPTIONS_UNIT(refresh_rate_ps), + + OPTIONS_UNIT(tIS_ps), + OPTIONS_UNIT(tIH_ps), + OPTIONS_UNIT(tDS_ps), + OPTIONS_UNIT(tDH_ps), + OPTIONS_UNIT(tRTP_ps), + OPTIONS_UNIT(tDQSQ_max_ps), + OPTIONS_UNIT(tQHS_ps), + }; + + static const unsigned int n_uint_opts = ARRAY_SIZE(options_uint); + + static const options_strings_t options_ull[] = { + OPTIONS_UNIT(rank_density), + OPTIONS_UNIT(capacity), + OPTIONS_UNIT(base_address), + }; + + static const unsigned int n_ull_opts = ARRAY_SIZE(options_ull); + + if (handle_uint_option_table(options_uint, n_uint_opts, (u32) p, + optname_str, value_str)) + return; + + if (handle_ull_option_table(options_ull, n_ull_opts, (u32) p, + optname_str, value_str)) + return; + + printf("couldn't find option string %s\n", optname_str); +} + +static void print_dimm_parameters(const dimm_params_t *pdimm) +{ + if (pdimm->n_ranks == 0) { + printf("DIMM not present\n"); + return; + } + + printf("DIMM organization parameters:\n"); + + printf("module part name = %s\n", pdimm->mpart); + printf("n_ranks = %u\n", pdimm->n_ranks); + printf("rank_density = %llu bytes (%llu megabytes)\n", + pdimm->rank_density, pdimm->rank_density / 0x100000); + printf("capacity = %llu bytes (%llu megabytes)\n", + pdimm->capacity, pdimm->capacity / 0x100000); + printf("data_width = %u\n", pdimm->data_width); + printf("primary_sdram_width = %u\n", pdimm->primary_sdram_width); + printf("ec_sdram_width = %u\n", pdimm->ec_sdram_width); + printf("registered_dimm = %u\n", pdimm->registered_dimm); + + printf("SDRAM device parameters:\n"); + printf("n_row_addr = %u\n", pdimm->n_row_addr); + printf("n_col_addr = %u\n", pdimm->n_col_addr); + printf("edc_config = %u\n", pdimm->edc_config); + printf("n_banks_per_sdram_device = %u\n", + pdimm->n_banks_per_sdram_device); + printf("burst_lengths_bitmask = %02X\n", + pdimm->burst_lengths_bitmask); + + printf("base_addresss = %llu (%08llX %08llX)\n", + pdimm->base_address, + (pdimm->base_address >> 32), + pdimm->base_address & 0xFFFFFFFF); + + printf("SDRAM clock periods:\n"); + printf("tCKmin_X_ps = %u ps\n", pdimm->tCKmin_X_ps); + printf("tCKmin_X_minus_1_ps = %u ps\n", pdimm->tCKmin_X_minus_1_ps); + printf("tCKmin_X_minus_2_ps = %u ps\n", pdimm->tCKmin_X_minus_2_ps); + printf("tCKmax_ps = %u ps\n", pdimm->tCKmax_ps); + + printf("SDRAM CAS latencies:\n"); + printf("caslat_X = %u\n", pdimm->caslat_X); + printf("caslat_X_minus_1 = %u\n", pdimm->caslat_X_minus_1); + printf("caslat_X_minus_2 = %u\n", pdimm->caslat_X_minus_2); + printf("caslat_lowest_derated = %u\n", pdimm->caslat_lowest_derated); + + printf("SDRAM timing parameters:\n"); + printf("tRCD_ps = %u\n", pdimm->tRCD_ps); + printf("tRP_ps = %u\n", pdimm->tRP_ps); + printf("tRAS_ps = %u\n", pdimm->tRAS_ps); + printf("tWR_ps = %u\n", pdimm->tWR_ps); + printf("tWTR_ps = %u\n", pdimm->tWTR_ps); + printf("tRFC_ps = %u\n", pdimm->tRFC_ps); + printf("tRC_ps = %u\n", pdimm->tRC_ps); + printf("tRRD_ps = %u\n", pdimm->tRRD_ps); + printf("refresh_rate_ps = %u\n", pdimm->refresh_rate_ps); + + printf("SDRAM even more timing parameters:\n"); + printf("tIS_ps = %u\n", pdimm->tIS_ps); + printf("tIH_ps = %u\n", pdimm->tIH_ps); + printf("tDS_ps = %u\n", pdimm->tDS_ps); + printf("tDH_ps = %u\n", pdimm->tDH_ps); + printf("tRTP_ps = %u\n", pdimm->tRTP_ps); + printf("tDQSQ_max_ps = %u\n", pdimm->tDQSQ_max_ps); + printf("tQHS_ps = %u\n", pdimm->tQHS_ps); +} + +static void print_lowest_common_dimm_parameters( + const common_timing_params_t *plcd_dimm_params) +{ + + /* Clock frequencies */ + printf("tCKmin_X_ps = %u (%u MHz)\n", + plcd_dimm_params->tCKmin_X_ps, + picos_to_mhz(plcd_dimm_params->tCKmin_X_ps)); + printf("tCKmax_ps = %u (%u MHz)\n", + plcd_dimm_params->tCKmax_ps, + picos_to_mhz(plcd_dimm_params->tCKmax_ps)); + printf("tCKmax_max_ps = %u\n", plcd_dimm_params->tCKmax_max_ps); + + /* Basic timing parameters */ + printf("tRCD_ps = %u\n", plcd_dimm_params->tRCD_ps); + printf("tRP_ps = %u\n", plcd_dimm_params->tRP_ps); + printf("tRAS_ps = %u\n", plcd_dimm_params->tRAS_ps); + + /* maximum = 63750 ps */ + printf("tWR_ps = %u\n", plcd_dimm_params->tWR_ps); + + /* maximum = 63750 ps */ + printf("tWTR_ps = %u\n", plcd_dimm_params->tWTR_ps); + + /* maximum = 255 ns + 256 ns + .75 ns = 511750 ps */ + printf("tRFC_ps = %u\n", plcd_dimm_params->tRFC_ps); + + /* maximum = 63750 ps */ + printf("tRRD_ps = %u\n", plcd_dimm_params->tRRD_ps); + + /* maximum = 254 ns + .75 ns = 254750 ps */ + printf("tRC_ps = %u\n", plcd_dimm_params->tRC_ps); + + printf("refresh_rate_ps = %u\n", plcd_dimm_params->refresh_rate_ps); + + /* byte 32, spd->ca_setup */ + printf("tIS_ps = %u\n", plcd_dimm_params->tIS_ps); + /* byte 33, spd->ca_hold */ + printf("tIH_ps = %u\n", plcd_dimm_params->tIH_ps); + /* byte 34, spd->data_setup */ + printf("tDS_ps = %u\n", plcd_dimm_params->tDS_ps); + /* byte 35, spd->data_hold */ + printf("tDH_ps = %u\n", plcd_dimm_params->tDH_ps); + /* byte 38, spd->trtp */ + printf("tRTP_ps = %u\n", plcd_dimm_params->tRTP_ps); + /* byte 44, spd->tdqsq */ + printf("tDQSQ_max_ps = %u\n", plcd_dimm_params->tDQSQ_max_ps); + /* byte 45, spd->tqhs */ + printf("tQHS_ps = %u\n", plcd_dimm_params->tQHS_ps); + + printf("lowest_common_SPD_caslat = %u\n", + plcd_dimm_params->lowest_common_SPD_caslat); + printf("highest_common_derated_caslat = %u\n", + plcd_dimm_params->highest_common_derated_caslat); + printf("additive_latency = %u\n", plcd_dimm_params->additive_latency); + + printf("ndimms_present = %u\n", plcd_dimm_params->ndimms_present); + printf("all_DIMMs_burst_lengths_bitmask = %02X\n", + plcd_dimm_params->all_DIMMs_burst_lengths_bitmask); + printf("all_DIMMs_registered = %u\n", + plcd_dimm_params->all_DIMMs_registered); + printf("all_DIMMs_unbuffered = %u\n", + plcd_dimm_params->all_DIMMs_unbuffered); + printf("all_DIMMs_ECC_capable = %u\n", + plcd_dimm_params->all_DIMMs_ECC_capable); + + printf("total_mem = %llu (%llu megabytes)\n", + plcd_dimm_params->total_mem, + plcd_dimm_params->total_mem / 0x100000); + printf("base_address = %llu (%llu megabytes)\n", + plcd_dimm_params->base_address, + plcd_dimm_params->base_address / 0x100000); +} + +#undef OPTIONS_UNIT +#define OPTIONS_UNIT(x) {#x, offsetof(memctl_options_t, x)} + +static void fsl_ddr_options_edit(fsl_ddr_info_t *pinfo, + unsigned int ctl_num, + const char *optname_str, + const char *value_str) +{ + memctl_options_t *p = &(pinfo->memctl_opts[ctl_num]); + /* + * This array all on the stack and *computed* each time this + * function is rung. + */ + static const options_strings_t options[] = { + {"cs0_odt_rd_cfg", offsetof(memctl_options_t, cs_local_opts[0].odt_rd_cfg)}, + {"cs0_odt_wr_cfg", offsetof(memctl_options_t, cs_local_opts[0].odt_wr_cfg)}, + {"cs0_odt_rtt_norm", offsetof(memctl_options_t, cs_local_opts[0].odt_rtt_norm)}, + {"cs0_odt_rtt_wr", offsetof(memctl_options_t, cs_local_opts[0].odt_rtt_wr)}, + {"cs1_odt_rd_cfg", offsetof(memctl_options_t, cs_local_opts[1].odt_rd_cfg)}, + {"cs1_odt_wr_cfg", offsetof(memctl_options_t, cs_local_opts[1].odt_wr_cfg)}, + {"cs1_odt_rtt_norm", offsetof(memctl_options_t, cs_local_opts[1].odt_rtt_norm)}, + {"cs1_odt_rtt_wr", offsetof(memctl_options_t, cs_local_opts[1].odt_rtt_wr)}, + {"cs2_odt_rd_cfg", offsetof(memctl_options_t, cs_local_opts[2].odt_rd_cfg)}, + {"cs2_odt_wr_cfg", offsetof(memctl_options_t, cs_local_opts[2].odt_wr_cfg)}, + {"cs2_odt_rtt_norm", offsetof(memctl_options_t, cs_local_opts[2].odt_rtt_norm)}, + {"cs2_odt_rtt_wr", offsetof(memctl_options_t, cs_local_opts[2].odt_rtt_wr)}, + {"cs3_odt_rd_cfg", offsetof(memctl_options_t, cs_local_opts[3].odt_rd_cfg)}, + {"cs3_odt_wr_cfg", offsetof(memctl_options_t, cs_local_opts[3].odt_wr_cfg)}, + {"cs3_odt_rtt_norm", offsetof(memctl_options_t, cs_local_opts[3].odt_rtt_norm)}, + {"cs3_odt_rtt_wr", offsetof(memctl_options_t, cs_local_opts[3].odt_rtt_wr)}, + OPTIONS_UNIT(memctl_interleaving), + OPTIONS_UNIT(memctl_interleaving_mode), + OPTIONS_UNIT(ba_intlv_ctl), + OPTIONS_UNIT(ECC_mode), + OPTIONS_UNIT(ECC_init_using_memctl), + OPTIONS_UNIT(DQS_config), + OPTIONS_UNIT(self_refresh_in_sleep), + OPTIONS_UNIT(dynamic_power), + OPTIONS_UNIT(data_bus_width), + OPTIONS_UNIT(burst_length), + OPTIONS_UNIT(cas_latency_override), + OPTIONS_UNIT(cas_latency_override_value), + OPTIONS_UNIT(use_derated_caslat), + OPTIONS_UNIT(additive_latency_override), + OPTIONS_UNIT(additive_latency_override_value), + OPTIONS_UNIT(clk_adjust), + OPTIONS_UNIT(cpo_override), + OPTIONS_UNIT(write_data_delay), + OPTIONS_UNIT(half_strength_driver_enable), + + /* + * These can probably be changed to 2T_EN and 3T_EN + * (using a leading numerical character) without problem + */ + OPTIONS_UNIT(twoT_en), + OPTIONS_UNIT(threeT_en), + OPTIONS_UNIT(ap_en), + OPTIONS_UNIT(bstopre), + OPTIONS_UNIT(wrlvl_override), + OPTIONS_UNIT(wrlvl_sample), + OPTIONS_UNIT(wrlvl_start), + OPTIONS_UNIT(rcw_override), + OPTIONS_UNIT(rcw_1), + OPTIONS_UNIT(rcw_2), + OPTIONS_UNIT(tCKE_clock_pulse_width_ps), + OPTIONS_UNIT(tFAW_window_four_activates_ps), + }; + + static const unsigned int nopts = ARRAY_SIZE(options); + + if (handle_uint_option_table(options, nopts, (u32) p, + optname_str, value_str)) + return; + + printf("couldn't find option string %s\n", optname_str); +} + +static void print_fsl_memctl_config_regs(const fsl_ddr_cfg_regs_t *ddr) +{ + unsigned int i; + + for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { + printf("cs%u_bnds = %08X\n", i, ddr->cs[i].bnds); + printf("cs%u_config = %08X\n", i, ddr->cs[i].config); + printf("cs%u_config_2 = %08X\n", i, ddr->cs[i].config_2); + } + + printf("timing_cfg_3 = %08X\n", ddr->timing_cfg_3); + printf("timing_cfg_0 = %08X\n", ddr->timing_cfg_0); + printf("timing_cfg_1 = %08X\n", ddr->timing_cfg_1); + printf("timing_cfg_2 = %08X\n", ddr->timing_cfg_2); + printf("ddr_sdram_cfg = %08X\n", ddr->ddr_sdram_cfg); + printf("ddr_sdram_cfg_2 = %08X\n", ddr->ddr_sdram_cfg_2); + printf("ddr_sdram_mode = %08X\n", ddr->ddr_sdram_mode); + printf("ddr_sdram_mode_2 = %08X\n", ddr->ddr_sdram_mode_2); + printf("ddr_sdram_mode_3 = %08X\n", ddr->ddr_sdram_mode_3); + printf("ddr_sdram_mode_4 = %08X\n", ddr->ddr_sdram_mode_4); + printf("ddr_sdram_mode_5 = %08X\n", ddr->ddr_sdram_mode_5); + printf("ddr_sdram_mode_6 = %08X\n", ddr->ddr_sdram_mode_6); + printf("ddr_sdram_mode_7 = %08X\n", ddr->ddr_sdram_mode_7); + printf("ddr_sdram_mode_8 = %08X\n", ddr->ddr_sdram_mode_8); + printf("ddr_sdram_interval = %08X\n", ddr->ddr_sdram_interval); + printf("ddr_data_init = %08X\n", ddr->ddr_data_init); + printf("ddr_sdram_clk_cntl = %08X\n", ddr->ddr_sdram_clk_cntl); + printf("ddr_init_addr = %08X\n", ddr->ddr_init_addr); + printf("ddr_init_ext_addr = %08X\n", ddr->ddr_init_ext_addr); + printf("timing_cfg_4 = %08X\n", ddr->timing_cfg_4); + printf("timing_cfg_5 = %08X\n", ddr->timing_cfg_5); + printf("ddr_zq_cntl = %08X\n", ddr->ddr_zq_cntl); + printf("ddr_wrlvl_cntl = %08X\n", ddr->ddr_wrlvl_cntl); + printf("ddr_sr_cntr = %08X\n", ddr->ddr_sr_cntr); + printf("ddr_sdram_rcw_1 = %08X\n", ddr->ddr_sdram_rcw_1); + printf("ddr_sdram_rcw_2 = %08X\n", ddr->ddr_sdram_rcw_2); + printf("ddr_cdr1 = %08X\n", ddr->ddr_cdr1); + printf("ddr_cdr2 = %08X\n", ddr->ddr_cdr2); + printf("err_disable = %08X\n", ddr->err_disable); + printf("err_int_en = %08X\n", ddr->err_int_en); + for (i = 0; i < 18; i++) + printf("debug_%02d = %08X\n", i+1, ddr->debug[i]); +} + +static void fsl_ddr_regs_edit(fsl_ddr_info_t *pinfo, + unsigned int ctrl_num, + const char *regname, + unsigned int value) +{ + unsigned int i; + fsl_ddr_cfg_regs_t *ddr; + char buf[20]; + + debug("fsl_ddr_regs_edit: ctrl_num = %u, " + "regname = %s, value = 0x%08X\n", + ctrl_num, regname, value); + if (ctrl_num > CONFIG_NUM_DDR_CONTROLLERS) + return; + + /* FIXME: Change this into struct like the other editing functions */ + ddr = &(pinfo->fsl_ddr_config_reg[ctrl_num]); + + for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { + sprintf(buf, "cs%u_bnds", i); + if (strcmp(buf, regname) == 0) { + ddr->cs[i].bnds = value; + return; + } + + sprintf(buf, "cs%u_config", i); + if (strcmp(buf, regname) == 0) { + ddr->cs[i].config = value; + return; + } + + sprintf(buf, "cs%u_config_2", i); + if (strcmp(buf, regname) == 0) { + ddr->cs[i].config_2 = value; + return; + } + } + + if (strcmp("timing_cfg_3", regname) == 0) { + ddr->timing_cfg_3 = value; + return; + } + + if (strcmp("timing_cfg_0", regname) == 0) { + ddr->timing_cfg_0 = value; + return; + } + + if (strcmp("timing_cfg_1", regname) == 0) { + ddr->timing_cfg_1 = value; + return; + } + + if (strcmp("timing_cfg_2", regname) == 0) { + ddr->timing_cfg_2 = value; + return; + } + + if (strcmp("ddr_sdram_cfg", regname) == 0) { + ddr->ddr_sdram_cfg = value; + return; + } + + if (strcmp("ddr_sdram_cfg_2", regname) == 0) { + ddr->ddr_sdram_cfg_2 = value; + return; + } + + if (strcmp("ddr_sdram_mode", regname) == 0) { + ddr->ddr_sdram_mode = value; + return; + } + + if (strcmp("ddr_sdram_mode_2", regname) == 0) { + ddr->ddr_sdram_mode_2 = value; + return; + } + + if (strcmp("ddr_sdram_mode_3", regname) == 0) { + ddr->ddr_sdram_mode_3 = value; + return; + } + + if (strcmp("ddr_sdram_mode_4", regname) == 0) { + ddr->ddr_sdram_mode_4 = value; + return; + } + + if (strcmp("ddr_sdram_mode_5", regname) == 0) { + ddr->ddr_sdram_mode_5 = value; + return; + } + + if (strcmp("ddr_sdram_mode_6", regname) == 0) { + ddr->ddr_sdram_mode_6 = value; + return; + } + + if (strcmp("ddr_sdram_mode_7", regname) == 0) { + ddr->ddr_sdram_mode_7 = value; + return; + } + + if (strcmp("ddr_sdram_mode_8", regname) == 0) { + ddr->ddr_sdram_mode_8 = value; + return; + } + + if (strcmp("ddr_sdram_interval", regname) == 0) { + ddr->ddr_sdram_interval = value; + return; + } + + if (strcmp("ddr_data_init", regname) == 0) { + ddr->ddr_data_init = value; + return; + } + + if (strcmp("ddr_sdram_clk_cntl", regname) == 0) { + ddr->ddr_sdram_clk_cntl = value; + return; + } + + if (strcmp("ddr_init_addr", regname) == 0) { + ddr->ddr_init_addr = value; + return; + } + + if (strcmp("ddr_init_ext_addr", regname) == 0) { + ddr->ddr_init_ext_addr = value; + return; + } + + if (strcmp("timing_cfg_4", regname) == 0) { + ddr->timing_cfg_4 = value; + return; + } + + if (strcmp("timing_cfg_5", regname) == 0) { + ddr->timing_cfg_5 = value; + return; + } + + if (strcmp("ddr_zq_cntl", regname) == 0) { + ddr->ddr_zq_cntl = value; + return; + } + + if (strcmp("ddr_wrlvl_cntl", regname) == 0) { + ddr->ddr_wrlvl_cntl = value; + return; + } + + if (strcmp("ddr_sr_cntr", regname) == 0) { + ddr->ddr_sr_cntr = value; + return; + } + + if (strcmp("ddr_sdram_rcw_1", regname) == 0) { + ddr->ddr_sdram_rcw_1 = value; + return; + } + + if (strcmp("ddr_sdram_rcw_2", regname) == 0) { + ddr->ddr_sdram_rcw_2 = value; + return; + } + + if (strcmp("ddr_cdr1", regname) == 0) { + ddr->ddr_cdr1 = value; + return; + } + + if (strcmp("ddr_cdr2", regname) == 0) { + ddr->ddr_cdr2 = value; + return; + } + + if (strcmp("err_disable", regname) == 0) { + ddr->err_disable = value; + return; + } + + if (strcmp("err_int_en", regname) == 0) { + ddr->err_int_en = value; + return; + } + + for (i = 0; i < 18; i++) { + sprintf(buf, "debug_%u", i + 1); + if (strcmp(buf, regname) == 0) { + ddr->debug[i] = value; + return; + } + } +} + +static void print_memctl_options(const memctl_options_t *popts) +{ + int i; + for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { + printf("cs%d_odt_rd_cfg = %u\n", i, popts->cs_local_opts[i].odt_rd_cfg); + printf("cs%d_odt_wr_cfg = %u\n", i, popts->cs_local_opts[i].odt_wr_cfg); +#if defined(CONFIG_FSL_DDR3) + printf("cs%d_odt_rtt_norm = %u\n", i, popts->cs_local_opts[i].odt_rtt_norm); + printf("cs%d_odt_rtt_wr = %u\n", i, popts->cs_local_opts[i].odt_rtt_wr); +#endif + } + /* Special configurations for chip select */ + printf("memctl_interleaving = %u\n", popts->memctl_interleaving); + printf("memctl_interleaving_mode = %u\n", + popts->memctl_interleaving_mode); + printf("ba_intlv_ctl = 0x%02X\n", popts->ba_intlv_ctl); + + printf("ECC_mode = %u\n", popts->ECC_mode); /* Use ECC? */ + + /* Initialize ECC using memory controller? */ + printf("ECC_init_using_memctl = %u\n", popts->ECC_init_using_memctl); + + /* Use DQS? maybe only with DDR2? */ + printf("DQS_config = %u\n", popts->DQS_config); + + /* SREN - self-refresh during sleep */ + printf("self_refresh_in_sleep = %u\n", popts->self_refresh_in_sleep); + + /* DYN_PWR */ + printf("dynamic_power = %u\n", popts->dynamic_power); + + /* memory data width to use (16-bit, 32-bit, 64-bit) */ + printf("data_bus_width = %u\n", popts->data_bus_width); + + /* 4, 8 */ + printf("burst_length = %u\n", popts->burst_length); + + /* Global Timing Parameters */ + printf("cas_latency_override = %u\n", popts->cas_latency_override); + printf("cas_latency_override_value = %u\n", + popts->cas_latency_override_value); + printf("use_derated_caslat = %u\n", popts->use_derated_caslat); + printf("additive_latency_override = %u\n", + popts->additive_latency_override); + printf("additive_latency_override_value = %u\n", + popts->additive_latency_override_value); + printf("clk_adjust = %u\n", popts->clk_adjust); + printf("cpo_override = %u\n", popts->cpo_override); + /* DQS adjust */ + printf("write_data_delay = %u\n", popts->write_data_delay); + printf("half_strength_driver_enable = %u\n", + popts->half_strength_driver_enable); + printf("twoT_en = %u\n", popts->twoT_en); + printf("threeT_en = %u\n", popts->threeT_en); + printf("ap_en = %u\n", popts->ap_en); + printf("bstopre = %u\n", popts->bstopre); + /* wrlvl */ + printf("wrlvl_override = %u\n", popts->wrlvl_override); + printf("wrlvl_sample = %u\n", popts->wrlvl_sample); + printf("wrlvl_start = %u\n", popts->wrlvl_start); + /* rcw */ + printf("rcw_override = %u\n", popts->rcw_override); + printf("rcw_1 = 0x%08x\n", popts->rcw_1); + printf("rcw_2 = 0x%08x\n", popts->rcw_2); + /* tCKE */ + printf("tCKE_clock_pulse_width_ps = %u\n", + popts->tCKE_clock_pulse_width_ps); + /* tFAW -- FOUR_ACT */ + printf("tFAW_window_four_activates_ps = %u\n", + popts->tFAW_window_four_activates_ps); +} + +#ifdef CONFIG_FSL_DDR1 +void ddr1_spd_dump(const ddr1_spd_eeprom_t *spd) +{ + unsigned int i; + + printf("%-3d : %02x %s\n", + 0, spd->info_size, + " spd->info_size, * 0 # bytes written into serial memory *"); + printf("%-3d : %02x %s\n", + 1, spd->chip_size, + " spd->chip_size, * 1 Total # bytes of SPD memory device *"); + printf("%-3d : %02x %s\n", + 2, spd->mem_type, + " spd->mem_type, * 2 Fundamental memory type *"); + printf("%-3d : %02x %s\n", + 3, spd->nrow_addr, + " spd->nrow_addr, * 3 # of Row Addresses on this assembly *"); + printf("%-3d : %02x %s\n", + 4, spd->ncol_addr, + " spd->ncol_addr, * 4 # of Column Addrs on this assembly *"); + printf("%-3d : %02x %s\n", + 5, spd->nrows, + " spd->nrows * 5 # of DIMM Banks *"); + printf("%-3d : %02x %s\n", + 6, spd->dataw_lsb, + " spd->dataw_lsb, * 6 Data Width lsb of this assembly *"); + printf("%-3d : %02x %s\n", + 7, spd->dataw_msb, + " spd->dataw_msb, * 7 Data Width msb of this assembly *"); + printf("%-3d : %02x %s\n", + 8, spd->voltage, + " spd->voltage, * 8 Voltage intf std of this assembly *"); + printf("%-3d : %02x %s\n", + 9, spd->clk_cycle, + " spd->clk_cycle, * 9 SDRAM Cycle time at CL=X *"); + printf("%-3d : %02x %s\n", + 10, spd->clk_access, + " spd->clk_access, * 10 SDRAM Access from Clock at CL=X *"); + printf("%-3d : %02x %s\n", + 11, spd->config, + " spd->config, * 11 DIMM Configuration type *"); + printf("%-3d : %02x %s\n", + 12, spd->refresh, + " spd->refresh, * 12 Refresh Rate/Type *"); + printf("%-3d : %02x %s\n", + 13, spd->primw, + " spd->primw, * 13 Primary SDRAM Width *"); + printf("%-3d : %02x %s\n", + 14, spd->ecw, + " spd->ecw, * 14 Error Checking SDRAM width *"); + printf("%-3d : %02x %s\n", + 15, spd->min_delay, + " spd->min_delay, * 15 Back to Back Random Access *"); + printf("%-3d : %02x %s\n", + 16, spd->burstl, + " spd->burstl, * 16 Burst Lengths Supported *"); + printf("%-3d : %02x %s\n", + 17, spd->nbanks, + " spd->nbanks, * 17 # of Banks on Each SDRAM Device *"); + printf("%-3d : %02x %s\n", + 18, spd->cas_lat, + " spd->cas_lat, * 18 CAS# Latencies Supported *"); + printf("%-3d : %02x %s\n", + 19, spd->cs_lat, + " spd->cs_lat, * 19 Chip Select Latency *"); + printf("%-3d : %02x %s\n", + 20, spd->write_lat, + " spd->write_lat, * 20 Write Latency/Recovery *"); + printf("%-3d : %02x %s\n", + 21, spd->mod_attr, + " spd->mod_attr, * 21 SDRAM Module Attributes *"); + printf("%-3d : %02x %s\n", + 22, spd->dev_attr, + " spd->dev_attr, * 22 SDRAM Device Attributes *"); + printf("%-3d : %02x %s\n", + 23, spd->clk_cycle2, + " spd->clk_cycle2, * 23 Min SDRAM Cycle time at CL=X-1 *"); + printf("%-3d : %02x %s\n", + 24, spd->clk_access2, + " spd->clk_access2, * 24 SDRAM Access from Clock at CL=X-1 *"); + printf("%-3d : %02x %s\n", + 25, spd->clk_cycle3, + " spd->clk_cycle3, * 25 Min SDRAM Cycle time at CL=X-2 *"); + printf("%-3d : %02x %s\n", + 26, spd->clk_access3, + " spd->clk_access3, * 26 Max Access from Clock at CL=X-2 *"); + printf("%-3d : %02x %s\n", + 27, spd->trp, + " spd->trp, * 27 Min Row Precharge Time (tRP)*"); + printf("%-3d : %02x %s\n", + 28, spd->trrd, + " spd->trrd, * 28 Min Row Active to Row Active (tRRD) *"); + printf("%-3d : %02x %s\n", + 29, spd->trcd, + " spd->trcd, * 29 Min RAS to CAS Delay (tRCD) *"); + printf("%-3d : %02x %s\n", + 30, spd->tras, + " spd->tras, * 30 Minimum RAS Pulse Width (tRAS) *"); + printf("%-3d : %02x %s\n", + 31, spd->bank_dens, + " spd->bank_dens, * 31 Density of each bank on module *"); + printf("%-3d : %02x %s\n", + 32, spd->ca_setup, + " spd->ca_setup, * 32 Cmd + Addr signal input setup time *"); + printf("%-3d : %02x %s\n", + 33, spd->ca_hold, + " spd->ca_hold, * 33 Cmd and Addr signal input hold time *"); + printf("%-3d : %02x %s\n", + 34, spd->data_setup, + " spd->data_setup, * 34 Data signal input setup time *"); + printf("%-3d : %02x %s\n", + 35, spd->data_hold, + " spd->data_hold, * 35 Data signal input hold time *"); + printf("%-3d : %02x %s\n", + 36, spd->res_36_40[0], + " spd->res_36_40[0], * 36 Reserved / tWR *"); + printf("%-3d : %02x %s\n", + 37, spd->res_36_40[1], + " spd->res_36_40[1], * 37 Reserved / tWTR *"); + printf("%-3d : %02x %s\n", + 38, spd->res_36_40[2], + " spd->res_36_40[2], * 38 Reserved / tRTP *"); + printf("%-3d : %02x %s\n", + 39, spd->res_36_40[3], + " spd->res_36_40[3], * 39 Reserved / mem_probe *"); + printf("%-3d : %02x %s\n", + 40, spd->res_36_40[4], + " spd->res_36_40[4], * 40 Reserved / trc,trfc extensions *"); + printf("%-3d : %02x %s\n", + 41, spd->trc, + " spd->trc, * 41 Min Active to Auto refresh time tRC *"); + printf("%-3d : %02x %s\n", + 42, spd->trfc, + " spd->trfc, * 42 Min Auto to Active period tRFC *"); + printf("%-3d : %02x %s\n", + 43, spd->tckmax, + " spd->tckmax, * 43 Max device cycle time tCKmax *"); + printf("%-3d : %02x %s\n", + 44, spd->tdqsq, + " spd->tdqsq, * 44 Max DQS to DQ skew *"); + printf("%-3d : %02x %s\n", + 45, spd->tqhs, + " spd->tqhs, * 45 Max Read DataHold skew tQHS *"); + printf("%-3d : %02x %s\n", + 46, spd->res_46, + " spd->res_46, * 46 Reserved/ PLL Relock time *"); + printf("%-3d : %02x %s\n", + 47, spd->dimm_height, + " spd->dimm_height * 47 SDRAM DIMM Height *"); + + printf("%-3d-%3d: ", 48, 61); + + for (i = 0; i < 14; i++) + printf("%02x", spd->res_48_61[i]); + + printf(" * 48-61 IDD in SPD and Reserved space *\n"); + + printf("%-3d : %02x %s\n", + 62, spd->spd_rev, + " spd->spd_rev, * 62 SPD Data Revision Code *"); + printf("%-3d : %02x %s\n", + 63, spd->cksum, + " spd->cksum, * 63 Checksum for bytes 0-62 *"); + printf("%-3d-%3d: ", 64, 71); + + for (i = 0; i < 8; i++) + printf("%02x", spd->mid[i]); + + printf("* 64 Mfr's JEDEC ID code per JEP-108E *\n"); + printf("%-3d : %02x %s\n", + 72, spd->mloc, + " spd->mloc, * 72 Manufacturing Location *"); + + printf("%-3d-%3d: >>", 73, 90); + + for (i = 0; i < 18; i++) + printf("%c", spd->mpart[i]); + + printf("<<* 73 Manufacturer's Part Number *\n"); + + printf("%-3d-%3d: %02x %02x %s\n", + 91, 92, spd->rev[0], spd->rev[1], + "* 91 Revision Code *"); + printf("%-3d-%3d: %02x %02x %s\n", + 93, 94, spd->mdate[0], spd->mdate[1], + "* 93 Manufacturing Date *"); + printf("%-3d-%3d: ", 95, 98); + + for (i = 0; i < 4; i++) + printf("%02x", spd->sernum[i]); + + printf("* 95 Assembly Serial Number *\n"); + + printf("%-3d-%3d: ", 99, 127); + + for (i = 0; i < 27; i++) + printf("%02x", spd->mspec[i]); + + printf("* 99 Manufacturer Specific Data *\n"); +} +#endif + +#ifdef CONFIG_FSL_DDR2 +void ddr2_spd_dump(const ddr2_spd_eeprom_t *spd) +{ + unsigned int i; + + printf("%-3d : %02x %s\n", + 0, spd->info_size, + " spd->info_size, * 0 # bytes written into serial memory *"); + printf("%-3d : %02x %s\n", + 1, spd->chip_size, + " spd->chip_size, * 1 Total # bytes of SPD memory device *"); + printf("%-3d : %02x %s\n", + 2, spd->mem_type, + " spd->mem_type, * 2 Fundamental memory type *"); + printf("%-3d : %02x %s\n", + 3, spd->nrow_addr, + " spd->nrow_addr, * 3 # of Row Addresses on this assembly *"); + printf("%-3d : %02x %s\n", + 4, spd->ncol_addr, + " spd->ncol_addr, * 4 # of Column Addrs on this assembly *"); + printf("%-3d : %02x %s\n", + 5, spd->mod_ranks, + " spd->mod_ranks * 5 # of Module Rows on this assembly *"); + printf("%-3d : %02x %s\n", + 6, spd->dataw, + " spd->dataw, * 6 Data Width of this assembly *"); + printf("%-3d : %02x %s\n", + 7, spd->res_7, + " spd->res_7, * 7 Reserved *"); + printf("%-3d : %02x %s\n", + 8, spd->voltage, + " spd->voltage, * 8 Voltage intf std of this assembly *"); + printf("%-3d : %02x %s\n", + 9, spd->clk_cycle, + " spd->clk_cycle, * 9 SDRAM Cycle time at CL=X *"); + printf("%-3d : %02x %s\n", + 10, spd->clk_access, + " spd->clk_access, * 10 SDRAM Access from Clock at CL=X *"); + printf("%-3d : %02x %s\n", + 11, spd->config, + " spd->config, * 11 DIMM Configuration type *"); + printf("%-3d : %02x %s\n", + 12, spd->refresh, + " spd->refresh, * 12 Refresh Rate/Type *"); + printf("%-3d : %02x %s\n", + 13, spd->primw, + " spd->primw, * 13 Primary SDRAM Width *"); + printf("%-3d : %02x %s\n", + 14, spd->ecw, + " spd->ecw, * 14 Error Checking SDRAM width *"); + printf("%-3d : %02x %s\n", + 15, spd->res_15, + " spd->res_15, * 15 Reserved *"); + printf("%-3d : %02x %s\n", + 16, spd->burstl, + " spd->burstl, * 16 Burst Lengths Supported *"); + printf("%-3d : %02x %s\n", + 17, spd->nbanks, + " spd->nbanks, * 17 # of Banks on Each SDRAM Device *"); + printf("%-3d : %02x %s\n", + 18, spd->cas_lat, + " spd->cas_lat, * 18 CAS# Latencies Supported *"); + printf("%-3d : %02x %s\n", + 19, spd->mech_char, + " spd->mech_char, * 19 Mechanical Characteristics *"); + printf("%-3d : %02x %s\n", + 20, spd->dimm_type, + " spd->dimm_type, * 20 DIMM type *"); + printf("%-3d : %02x %s\n", + 21, spd->mod_attr, + " spd->mod_attr, * 21 SDRAM Module Attributes *"); + printf("%-3d : %02x %s\n", + 22, spd->dev_attr, + " spd->dev_attr, * 22 SDRAM Device Attributes *"); + printf("%-3d : %02x %s\n", + 23, spd->clk_cycle2, + " spd->clk_cycle2, * 23 Min SDRAM Cycle time at CL=X-1 *"); + printf("%-3d : %02x %s\n", + 24, spd->clk_access2, + " spd->clk_access2, * 24 SDRAM Access from Clock at CL=X-1 *"); + printf("%-3d : %02x %s\n", + 25, spd->clk_cycle3, + " spd->clk_cycle3, * 25 Min SDRAM Cycle time at CL=X-2 *"); + printf("%-3d : %02x %s\n", + 26, spd->clk_access3, + " spd->clk_access3, * 26 Max Access from Clock at CL=X-2 *"); + printf("%-3d : %02x %s\n", + 27, spd->trp, + " spd->trp, * 27 Min Row Precharge Time (tRP)*"); + printf("%-3d : %02x %s\n", + 28, spd->trrd, + " spd->trrd, * 28 Min Row Active to Row Active (tRRD) *"); + printf("%-3d : %02x %s\n", + 29, spd->trcd, + " spd->trcd, * 29 Min RAS to CAS Delay (tRCD) *"); + printf("%-3d : %02x %s\n", + 30, spd->tras, + " spd->tras, * 30 Minimum RAS Pulse Width (tRAS) *"); + printf("%-3d : %02x %s\n", + 31, spd->rank_dens, + " spd->rank_dens, * 31 Density of each rank on module *"); + printf("%-3d : %02x %s\n", + 32, spd->ca_setup, + " spd->ca_setup, * 32 Cmd + Addr signal input setup time *"); + printf("%-3d : %02x %s\n", + 33, spd->ca_hold, + " spd->ca_hold, * 33 Cmd and Addr signal input hold time *"); + printf("%-3d : %02x %s\n", + 34, spd->data_setup, + " spd->data_setup, * 34 Data signal input setup time *"); + printf("%-3d : %02x %s\n", + 35, spd->data_hold, + " spd->data_hold, * 35 Data signal input hold time *"); + printf("%-3d : %02x %s\n", + 36, spd->twr, + " spd->twr, * 36 Write Recovery time tWR *"); + printf("%-3d : %02x %s\n", + 37, spd->twtr, + " spd->twtr, * 37 Int write to read delay tWTR *"); + printf("%-3d : %02x %s\n", + 38, spd->trtp, + " spd->trtp, * 38 Int read to precharge delay tRTP *"); + printf("%-3d : %02x %s\n", + 39, spd->mem_probe, + " spd->mem_probe, * 39 Mem analysis probe characteristics *"); + printf("%-3d : %02x %s\n", + 40, spd->trctrfc_ext, + " spd->trctrfc_ext, * 40 Extensions to trc and trfc *"); + printf("%-3d : %02x %s\n", + 41, spd->trc, + " spd->trc, * 41 Min Active to Auto refresh time tRC *"); + printf("%-3d : %02x %s\n", + 42, spd->trfc, + " spd->trfc, * 42 Min Auto to Active period tRFC *"); + printf("%-3d : %02x %s\n", + 43, spd->tckmax, + " spd->tckmax, * 43 Max device cycle time tCKmax *"); + printf("%-3d : %02x %s\n", + 44, spd->tdqsq, + " spd->tdqsq, * 44 Max DQS to DQ skew *"); + printf("%-3d : %02x %s\n", + 45, spd->tqhs, + " spd->tqhs, * 45 Max Read DataHold skew tQHS *"); + printf("%-3d : %02x %s\n", + 46, spd->pll_relock, + " spd->pll_relock, * 46 PLL Relock time *"); + printf("%-3d : %02x %s\n", + 47, spd->Tcasemax, + " spd->Tcasemax, * 47 Tcasemax *"); + printf("%-3d : %02x %s\n", + 48, spd->psiTAdram, + " spd->psiTAdram, * 48 Thermal Resistance of DRAM Package " + "from Top (Case) to Ambient (Psi T-A DRAM) *"); + printf("%-3d : %02x %s\n", + 49, spd->dt0_mode, + " spd->dt0_mode, * 49 DRAM Case Temperature Rise from " + "Ambient due to Activate-Precharge/Mode Bits " + "(DT0/Mode Bits) *)"); + printf("%-3d : %02x %s\n", + 50, spd->dt2n_dt2q, + " spd->dt2n_dt2q, * 50 DRAM Case Temperature Rise from " + "Ambient due to Precharge/Quiet Standby " + "(DT2N/DT2Q) *"); + printf("%-3d : %02x %s\n", + 51, spd->dt2p, + " spd->dt2p, * 51 DRAM Case Temperature Rise from " + "Ambient due to Precharge Power-Down (DT2P) *"); + printf("%-3d : %02x %s\n", + 52, spd->dt3n, + " spd->dt3n, * 52 DRAM Case Temperature Rise from " + "Ambient due to Active Standby (DT3N) *"); + printf("%-3d : %02x %s\n", + 53, spd->dt3pfast, + " spd->dt3pfast, * 53 DRAM Case Temperature Rise from " + "Ambient due to Active Power-Down with Fast PDN Exit " + "(DT3Pfast) *"); + printf("%-3d : %02x %s\n", + 54, spd->dt3pslow, + " spd->dt3pslow, * 54 DRAM Case Temperature Rise from " + "Ambient due to Active Power-Down with Slow PDN Exit " + "(DT3Pslow) *"); + printf("%-3d : %02x %s\n", + 55, spd->dt4r_dt4r4w, + " spd->dt4r_dt4r4w, * 55 DRAM Case Temperature Rise from " + "Ambient due to Page Open Burst Read/DT4R4W Mode Bit " + "(DT4R/DT4R4W Mode Bit) *"); + printf("%-3d : %02x %s\n", + 56, spd->dt5b, + " spd->dt5b, * 56 DRAM Case Temperature Rise from " + "Ambient due to Burst Refresh (DT5B) *"); + printf("%-3d : %02x %s\n", + 57, spd->dt7, + " spd->dt7, * 57 DRAM Case Temperature Rise from " + "Ambient due to Bank Interleave Reads with " + "Auto-Precharge (DT7) *"); + printf("%-3d : %02x %s\n", + 58, spd->psiTApll, + " spd->psiTApll, * 58 Thermal Resistance of PLL Package form" + " Top (Case) to Ambient (Psi T-A PLL) *"); + printf("%-3d : %02x %s\n", + 59, spd->psiTAreg, + " spd->psiTAreg, * 59 Thermal Reisitance of Register Package" + " from Top (Case) to Ambient (Psi T-A Register) *"); + printf("%-3d : %02x %s\n", + 60, spd->dtpllactive, + " spd->dtpllactive, * 60 PLL Case Temperature Rise from " + "Ambient due to PLL Active (DT PLL Active) *"); + printf("%-3d : %02x %s\n", + 61, spd->dtregact, + " spd->dtregact, " + "* 61 Register Case Temperature Rise from Ambient due to " + "Register Active/Mode Bit (DT Register Active/Mode Bit) *"); + printf("%-3d : %02x %s\n", + 62, spd->spd_rev, + " spd->spd_rev, * 62 SPD Data Revision Code *"); + printf("%-3d : %02x %s\n", + 63, spd->cksum, + " spd->cksum, * 63 Checksum for bytes 0-62 *"); + + printf("%-3d-%3d: ", 64, 71); + + for (i = 0; i < 8; i++) + printf("%02x", spd->mid[i]); + + printf("* 64 Mfr's JEDEC ID code per JEP-108E *\n"); + + printf("%-3d : %02x %s\n", + 72, spd->mloc, + " spd->mloc, * 72 Manufacturing Location *"); + + printf("%-3d-%3d: >>", 73, 90); + for (i = 0; i < 18; i++) + printf("%c", spd->mpart[i]); + + + printf("<<* 73 Manufacturer's Part Number *\n"); + + printf("%-3d-%3d: %02x %02x %s\n", + 91, 92, spd->rev[0], spd->rev[1], + "* 91 Revision Code *"); + printf("%-3d-%3d: %02x %02x %s\n", + 93, 94, spd->mdate[0], spd->mdate[1], + "* 93 Manufacturing Date *"); + printf("%-3d-%3d: ", 95, 98); + + for (i = 0; i < 4; i++) + printf("%02x", spd->sernum[i]); + + printf("* 95 Assembly Serial Number *\n"); + + printf("%-3d-%3d: ", 99, 127); + for (i = 0; i < 27; i++) + printf("%02x", spd->mspec[i]); + + + printf("* 99 Manufacturer Specific Data *\n"); +} +#endif + +#ifdef CONFIG_FSL_DDR3 +void ddr3_spd_dump(const ddr3_spd_eeprom_t *spd) +{ + unsigned int i; + + /* General Section: Bytes 0-59 */ + +#define PRINT_NXS(x, y, z) printf("%-3d : %02x %s\n", x, y, z); +#define PRINT_NNXXS(n0, n1, x0, x1, s) printf("%-3d-%3d: %02x %02x %s\n", n0, n1, x0, x1, s); +#define PRINT_SNNlots(x, y, z, arr) do {printf(x); printf("%-3d-%3d: ", y, z); for (i = y; i <= z; i++) printf("%02x", arr[i - y]); } while (0) + + PRINT_NXS(0, spd->info_size_crc, "info_size_crc bytes written into serial memory, CRC coverage"); + PRINT_NXS(1, spd->spd_rev, "spd_rev SPD Revision"); + PRINT_NXS(2, spd->mem_type, "mem_type Key Byte / DRAM Device Type"); + PRINT_NXS(3, spd->module_type, "module_type Key Byte / Module Type"); + PRINT_NXS(4, spd->density_banks, "density_banks SDRAM Density and Banks"); + PRINT_NXS(5, spd->addressing, "addressing SDRAM Addressing"); + PRINT_NXS(6, spd->module_vdd, "module_vdd Module Nominal Voltage, VDD"); + PRINT_NXS(7, spd->organization, "organization Module Organization"); + PRINT_NXS(8, spd->bus_width, "bus_width Module Memory Bus Width"); + PRINT_NXS(9, spd->ftb_div, "ftb_div Fine Timebase (FTB) Dividend / Divisor"); + PRINT_NXS(10, spd->mtb_dividend, "mtb_dividend Medium Timebase (MTB) Dividend"); + PRINT_NXS(11, spd->mtb_divisor, "mtb_divisor Medium Timebase (MTB) Divisor"); + PRINT_NXS(12, spd->tCK_min, "tCK_min SDRAM Minimum Cycle Time"); + PRINT_NXS(13, spd->res_13, "res_13 Reserved"); + PRINT_NXS(14, spd->caslat_lsb, "caslat_lsb CAS Latencies Supported, LSB"); + PRINT_NXS(15, spd->caslat_msb, "caslat_msb CAS Latencies Supported, MSB"); + PRINT_NXS(16, spd->tAA_min, "tAA_min Min CAS Latency Time"); + PRINT_NXS(17, spd->tWR_min, "tWR_min Min Write REcovery Time"); + PRINT_NXS(18, spd->tRCD_min, "tRCD_min Min RAS# to CAS# Delay Time"); + PRINT_NXS(19, spd->tRRD_min, "tRRD_min Min Row Active to Row Active Delay Time"); + PRINT_NXS(20, spd->tRP_min, "tRP_min Min Row Precharge Delay Time"); + PRINT_NXS(21, spd->tRAS_tRC_ext, "tRAS_tRC_ext Upper Nibbles for tRAS and tRC"); + PRINT_NXS(22, spd->tRAS_min_lsb, "tRAS_min_lsb Min Active to Precharge Delay Time, LSB"); + PRINT_NXS(23, spd->tRC_min_lsb, "tRC_min_lsb Min Active to Active/Refresh Delay Time, LSB"); + PRINT_NXS(24, spd->tRFC_min_lsb, "tRFC_min_lsb Min Refresh Recovery Delay Time LSB"); + PRINT_NXS(25, spd->tRFC_min_msb, "tRFC_min_msb Min Refresh Recovery Delay Time MSB"); + PRINT_NXS(26, spd->tWTR_min, "tWTR_min Min Internal Write to Read Command Delay Time"); + PRINT_NXS(27, spd->tRTP_min, "tRTP_min Min Internal Read to Precharge Command Delay Time"); + PRINT_NXS(28, spd->tFAW_msb, "tFAW_msb Upper Nibble for tFAW"); + PRINT_NXS(29, spd->tFAW_min, "tFAW_min Min Four Activate Window Delay Time"); + PRINT_NXS(30, spd->opt_features, "opt_features SDRAM Optional Features"); + PRINT_NXS(31, spd->therm_ref_opt, "therm_ref_opt SDRAM Thermal and Refresh Opts"); + PRINT_NXS(32, spd->therm_sensor, "therm_sensor SDRAM Thermal Sensor"); + PRINT_NXS(33, spd->device_type, "device_type SDRAM Device Type"); + + printf("%-3d-%3d: ", 34, 59); /* Reserved, General Section */ + + for (i = 34; i <= 59; i++) + printf("%02x", spd->res_34_59[i - 34]); + + puts("\n"); + + switch (spd->module_type) { + case 0x02: /* UDIMM */ + case 0x03: /* SO-DIMM */ + case 0x04: /* Micro-DIMM */ + case 0x06: /* Mini-UDIMM */ + PRINT_NXS(60, spd->mod_section.unbuffered.mod_height, "mod_height (Unbuffered) Module Nominal Height"); + PRINT_NXS(61, spd->mod_section.unbuffered.mod_thickness, "mod_thickness (Unbuffered) Module Maximum Thickness"); + PRINT_NXS(62, spd->mod_section.unbuffered.ref_raw_card, "ref_raw_card (Unbuffered) Reference Raw Card Used"); + PRINT_NXS(63, spd->mod_section.unbuffered.addr_mapping, "addr_mapping (Unbuffered) Address mapping from Edge Connector to DRAM"); + break; + case 0x01: /* RDIMM */ + case 0x05: /* Mini-RDIMM */ + PRINT_NXS(60, spd->mod_section.registered.mod_height, "mod_height (Registered) Module Nominal Height"); + PRINT_NXS(61, spd->mod_section.registered.mod_thickness, "mod_thickness (Registered) Module Maximum Thickness"); + PRINT_NXS(62, spd->mod_section.registered.ref_raw_card, "ref_raw_card (Registered) Reference Raw Card Used"); + PRINT_NXS(63, spd->mod_section.registered.modu_attr, "modu_attr (Registered) DIMM Module Attributes"); + PRINT_NXS(64, spd->mod_section.registered.thermal, "thermal (Registered) Thermal Heat Spreader Solution"); + PRINT_NXS(65, spd->mod_section.registered.reg_id_lo, "reg_id_lo (Registered) Register Manufacturer ID Code, LSB"); + PRINT_NXS(66, spd->mod_section.registered.reg_id_hi, "reg_id_hi (Registered) Register Manufacturer ID Code, MSB"); + PRINT_NXS(67, spd->mod_section.registered.reg_rev, "reg_rev (Registered) Register Revision Number"); + PRINT_NXS(68, spd->mod_section.registered.reg_type, "reg_type (Registered) Register Type"); + for (i = 69; i <= 76; i++) + printf("%-3d : %02x rcw[%d]\n", i, spd->mod_section.registered.rcw[i-69], i-69); + break; + default: + printf("%-3d-%3d: ", 60, 116); /* Module-specific Section, Unsupported Module Type */ + + for (i = 60; i <= 116; i++) + printf("%02x", spd->mod_section.uc[i - 60]); + + break; + } + + /* Unique Module ID: Bytes 117-125 */ + PRINT_NXS(117, spd->mmid_lsb, "Module MfgID Code LSB - JEP-106"); + PRINT_NXS(118, spd->mmid_msb, "Module MfgID Code MSB - JEP-106"); + PRINT_NXS(119, spd->mloc, "Mfg Location"); + PRINT_NNXXS(120, 121, spd->mdate[0], spd->mdate[1], "Mfg Date"); + + printf("122-125 Module Serial Number\n"); + printf("%-3d-%3d: ", 122, 125); + + for (i = 122; i <= 125; i++) + printf("%02x", spd->sernum[i - 122]); + + + /* CRC: Bytes 126-127 */ + PRINT_NNXXS(126, 127, spd->crc[0], spd->crc[1], "SPD CRC"); + + /* Other Manufacturer Fields and User Space: Bytes 128-255 */ + + printf("128-145 Mfg's Module Part Number\n"); + printf("%-3d-%3d: ", 128, 145); + + for (i = 128; i <= 145; i++) + printf("%02x", spd->mpart[i - 128]); + + puts("\n"); + PRINT_NNXXS(146, 147, spd->mrev[0], spd->mrev[1], "Module Revision code"); + + PRINT_NXS(148, spd->dmid_lsb, "DRAM MfgID Code LSB - JEP-106"); + PRINT_NXS(149, spd->dmid_msb, "DRAM MfgID Code MSB - JEP-106"); + + printf("150-175 Mfg's Specific Data\n"); + printf("%-3d-%3d: ", 150, 175); + + for (i = 150; i <= 175; i++) + printf("%02x", spd->msd[i - 150]); + + puts("\n"); + printf("176-255 Mfg's Specific Data\n"); + printf("%-3d-%3d: ", 176, 255); + for (i = 176; i <= 255; i++) + printf("%02x", spd->cust[i - 176]); + +} +#endif + +static __inline__ void generic_spd_dump(const generic_spd_eeprom_t *spd) +{ +#if defined(CONFIG_FSL_DDR1) + ddr1_spd_dump(spd); +#elif defined(CONFIG_FSL_DDR2) + ddr2_spd_dump(spd); +#elif defined(CONFIG_FSL_DDR3) + ddr3_spd_dump(spd); +#endif +} + +static void fsl_ddr_printinfo(const fsl_ddr_info_t *pinfo, + unsigned int ctrl_mask, + unsigned int dimm_mask, + unsigned int do_mask) +{ + unsigned int i, j, retval; + + /* STEP 1: DIMM SPD data */ + if (do_mask & STEP_GET_SPD) { + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + if (!(ctrl_mask & (1 << i))) + continue; + + /* + * FIXME: find a way to make this generate more + * optimal powerpc code (i.e. rlwimi.) + */ + for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) { + if (!(dimm_mask & (1 << j))) + continue; + + printf("SPD info: Controller=%u " + "DIMM=%u\n", i, j); + generic_spd_dump( + &(pinfo->spd_installed_dimms[i][j])); + printf("\n"); + } + printf("\n"); + } + printf("\n"); + } + + /* STEP 2: DIMM Parameters */ + if (do_mask & STEP_COMPUTE_DIMM_PARMS) { + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + if (!(ctrl_mask & (1 << i))) + continue; + for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) { + if (!(dimm_mask & (1 << j))) + continue; + printf("DIMM parameters: Controller=%u " + "DIMM=%u\n", i, j); + print_dimm_parameters( + &(pinfo->dimm_params[i][j])); + printf("\n"); + } + printf("\n"); + } + printf("\n"); + } + + /* STEP 3: Common Parameters */ + if (do_mask & STEP_COMPUTE_COMMON_PARMS) { + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + if (!(ctrl_mask & (1 << i))) + continue; + printf(""lowest common" DIMM parameters: " + "Controller=%u\n", i); + print_lowest_common_dimm_parameters( + &pinfo->common_timing_params[i]); + printf("\n"); + } + printf("\n"); + } + + /* STEP 4: User Configuration Options */ + if (do_mask & STEP_GATHER_OPTS) { + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + if (!(ctrl_mask & (1 << i))) + continue; + printf("User Config Options: Controller=%u\n", i); + print_memctl_options(&pinfo->memctl_opts[i]); + printf("\n"); + } + printf("\n"); + } + + /* STEP 5: Address assignment */ + if (do_mask & STEP_ASSIGN_ADDRESSES) { + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + if (!(ctrl_mask & (1 << i))) + continue; + for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) { + printf("Address Assignment: Controller=%u " + "DIMM=%u\n", i, j); + printf("Don't have this functionality yet\n"); + } + printf("\n"); + } + printf("\n"); + } + + /* STEP 6: computed controller register values */ + if (do_mask & STEP_COMPUTE_REGS) { + for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { + if (!(ctrl_mask & (1 << i))) + continue; + printf("Computed Register Values: Controller=%u\n", i); + print_fsl_memctl_config_regs( + &pinfo->fsl_ddr_config_reg[i]); + retval = check_fsl_memctl_config_regs( + &pinfo->fsl_ddr_config_reg[i]); + if (retval) { + printf("check_fsl_memctl_config_regs " + "result = %u\n", retval); + } + printf("\n"); + } + printf("\n"); + } +} + +phys_size_t fsl_ddr_interactive(fsl_ddr_info_t *pinfo) +{ + phys_size_t ddrsize; + const char *prompt = "FSL DDR>"; + unsigned int len; + char buffer[CONFIG_SYS_CBSIZE]; + char *argv[CONFIG_SYS_MAXARGS + 1]; /* NULL terminated */ + int argc; + unsigned int next_step = STEP_GET_SPD; + + /* + * The strategy for next_step is that it points to the next + * step in the computation process that needs to be done. + */ + while (1) { + /* + * No need to worry for buffer overflow here in + * this function; readline() maxes out at CFG_CBSIZE + */ + len = readline_into_buffer(prompt, buffer); + argc = parse_line(buffer, argv); + if (argc == 0) + continue; + + + if (strcmp(argv[0], "help") == 0) { + + /* + * FIXME: For some reason printing this whole + * thing causes the machine to freeze. + * Splitting it into two printfs seems to make + * it work. Does printf() have limits on the + * length of the string? + */ + printf( + "commands:\n" + "print print SPD and intermediate computed data\n" + "reset reboot machine\n" + "recompute reload SPD and options to default and recompute regs\n"); + printf( + "edit modify spd, parameter, or option\n"); + printf( + "compute recompute registers from current next_step to end\n" + "next_step shows current next_step\n" + "help this message\n" + "go program the memory controller and continue with u-boot\n"); + continue; + } + + if (strcmp(argv[0], "next_step") == 0) { + printf("next_step = 0x%02X (%s)\n", + next_step, + step_to_string(next_step)); + continue; + } + + if (strcmp(argv[0], "edit") == 0) { + unsigned int i; + unsigned int error = 0; + unsigned int step_mask = 0; + unsigned int ctlr_mask = 0; + unsigned int dimm_mask = 0; + char *p_element = NULL; + char *p_value = NULL; + unsigned int dimm_number_required = 0; + unsigned int ctrl_num; + unsigned int dimm_num; + + if (argc == 1) { + /* Only the element and value must be last */ + printf("edit <c#> <d#> " + "<spd|dimmparms|commonparms|opts|" + "addresses|regs> <element> <value>\n"); + printf("for spd, specify byte number for element\n"); + continue; + } + + for (i = 1; i < argc - 2; i++) { + if (strcmp(argv[i], "spd") == 0) { + step_mask |= STEP_GET_SPD; + dimm_number_required = 1; + continue; + } + + if (strcmp(argv[i], "dimmparms") == 0) { + step_mask |= STEP_COMPUTE_DIMM_PARMS; + dimm_number_required = 1; + continue; + } + + if (strcmp(argv[i], "commonparms") == 0) { + step_mask |= STEP_COMPUTE_COMMON_PARMS; + continue; + } + + if (strcmp(argv[i], "opts") == 0) { + step_mask |= STEP_GATHER_OPTS; + continue; + } + + if (strcmp(argv[i], "addresses") == 0) { + step_mask |= STEP_ASSIGN_ADDRESSES; + /* FIXME: not done yet */ + continue; + } + + if (strcmp(argv[i], "regs") == 0) { + step_mask |= STEP_COMPUTE_REGS; + continue; + } + + if (argv[i][0] == 'c') { + char c = argv[i][1]; + if (isdigit(c)) + ctlr_mask |= 1 << (c - '0'); + continue; + } + + if (argv[i][0] == 'd') { + char c = argv[i][1]; + if (isdigit(c)) + dimm_mask |= 1 << (c - '0'); + continue; + } + + printf("unknown arg %s\n", argv[i]); + step_mask = 0; + error = 1; + break; + } + + + if (error) + continue; + + + /* Check arguments */ + + /* ERROR: If no steps were found */ + if (step_mask == 0) { + printf("Error: No valid steps were specified " + "in argument.\n"); + continue; + } + + /* ERROR: If multiple steps were found */ + if (step_mask & (step_mask - 1)) { + printf("Error: Multiple steps specified in " + "argument.\n"); + continue; + } + + /* ERROR: Controller not specified */ + if (ctlr_mask == 0) { + printf("Error: controller number not " + "specified or no element and " + "value specified\n"); + continue; + } + + if (ctlr_mask & (ctlr_mask - 1)) { + printf("Error: multiple controllers " + "specified, %X\n", ctlr_mask); + continue; + } + + /* ERROR: DIMM number not specified */ + if (dimm_number_required && dimm_mask == 0) { + printf("Error: DIMM number number not " + "specified or no element and " + "value specified\n"); + continue; + } + + if (dimm_mask & (dimm_mask - 1)) { + printf("Error: multipled DIMMs specified\n"); + continue; + } + + p_element = argv[argc - 2]; + p_value = argv[argc - 1]; + + ctrl_num = __ilog2(ctlr_mask); + dimm_num = __ilog2(dimm_mask); + + switch (step_mask) { + case STEP_GET_SPD: + { + unsigned int element_num; + unsigned int value; + + element_num = simple_strtoul(p_element, + NULL, 0); + value = simple_strtoul(p_value, + NULL, 0); + fsl_ddr_spd_edit(pinfo, + ctrl_num, + dimm_num, + element_num, + value); + next_step = STEP_COMPUTE_DIMM_PARMS; + } + break; + + case STEP_COMPUTE_DIMM_PARMS: + fsl_ddr_dimm_parameters_edit( + pinfo, ctrl_num, dimm_num, + p_element, p_value); + next_step = STEP_COMPUTE_COMMON_PARMS; + break; + + case STEP_COMPUTE_COMMON_PARMS: + lowest_common_dimm_parameters_edit(pinfo, + ctrl_num, p_element, p_value); + next_step = STEP_GATHER_OPTS; + break; + + case STEP_GATHER_OPTS: + fsl_ddr_options_edit(pinfo, ctrl_num, + p_element, p_value); + next_step = STEP_ASSIGN_ADDRESSES; + break; + + case STEP_ASSIGN_ADDRESSES: + printf("editing of address assignment " + "not yet implemented\n"); + break; + + case STEP_COMPUTE_REGS: + { + unsigned int value; + + value = simple_strtoul(p_value, + NULL, 0); + fsl_ddr_regs_edit(pinfo, + ctrl_num, + p_element, + value); + next_step = STEP_PROGRAM_REGS; + } + break; + + default: + printf("programming error\n"); + while (1); + break; + } + continue; + } + + if (strcmp(argv[0], "reset") == 0) { + /* + * Reboot machine. + * Args don't seem to matter because this + * doesn't return + */ + do_reset(NULL, 0, 0, NULL); + } + + if (strcmp(argv[0], "recompute") == 0) { + /* + * Recalculate everything, starting with + * loading SPD EEPROM from DIMMs + */ + next_step = STEP_GET_SPD; + ddrsize = fsl_ddr_compute(pinfo, next_step); + /* + * FIXME: There some problems with this. + * For exmaple, what happens if there is + * an error inside fsl_ddr_compute? + */ + continue; + } + + if (strcmp(argv[0], "compute") == 0) { + /* + * Compute rest of steps starting at + * the current next_step/ + */ + ddrsize = fsl_ddr_compute(pinfo, next_step); + continue; + } + + if (strcmp(argv[0], "print") == 0) { + unsigned int i; + unsigned int error = 0; + unsigned int step_mask = 0; + unsigned int ctlr_mask = 0; + unsigned int dimm_mask = 0; + + if (argc == 1) { + printf("print [c<n>] [d<n>] [spd] [dimmparms] " + "[commonparms] [opts] [addresses] [regs]\n"); + continue; + } + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "spd") == 0) { + step_mask |= STEP_GET_SPD; + continue; + } + + if (strcmp(argv[i], "dimmparms") == 0) { + step_mask |= STEP_COMPUTE_DIMM_PARMS; + continue; + } + + if (strcmp(argv[i], "commonparms") == 0) { + step_mask |= STEP_COMPUTE_COMMON_PARMS; + continue; + } + + if (strcmp(argv[i], "opts") == 0) { + step_mask |= STEP_GATHER_OPTS; + continue; + } + + if (strcmp(argv[i], "addresses") == 0) { + step_mask |= STEP_ASSIGN_ADDRESSES; + continue; + } + + if (strcmp(argv[i], "regs") == 0) { + step_mask |= STEP_COMPUTE_REGS; + continue; + } + + if (argv[i][0] == 'c') { + char c = argv[i][1]; + if (isdigit(c)) + ctlr_mask |= 1 << (c - '0'); + continue; + } + + if (argv[i][0] == 'd') { + char c = argv[i][1]; + if (isdigit(c)) + dimm_mask |= 1 << (c - '0'); + continue; + } + + printf("unknown arg %s\n", argv[i]); + step_mask = 0; + error = 1; + break; + } + + if (error) + continue; + + /* If no particular controller was found, print all */ + if (ctlr_mask == 0) + ctlr_mask = 0xFF; + + /* If no particular dimm was found, print all dimms. */ + if (dimm_mask == 0) + dimm_mask = 0xFF; + + /* If no steps were found, print all steps. */ + if (step_mask == 0) + step_mask = STEP_ALL; + + fsl_ddr_printinfo(pinfo, ctlr_mask, + dimm_mask, step_mask); + continue; + } + + if (strcmp(argv[0], "go") == 0) { + if (next_step) { + ddrsize = fsl_ddr_compute(pinfo, next_step); + } + break; + } + + printf("unknown command %s\n", argv[0]); + } + + debug("end of memory = %llu\n", (u64)ddrsize); + + return ddrsize; +} diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/main.c b/arch/powerpc/cpu/mpc8xxx/ddr/main.c index 6d582e9..83a6dd4 100644 --- a/arch/powerpc/cpu/mpc8xxx/ddr/main.c +++ b/arch/powerpc/cpu/mpc8xxx/ddr/main.c @@ -21,6 +21,7 @@ extern void fsl_ddr_set_lawbar( const common_timing_params_t *memctl_common_params, unsigned int memctl_interleaved, unsigned int ctrl_num); +extern phys_size_t fsl_ddr_interactive(fsl_ddr_info_t *pinfo);
/* processor specific function */ extern void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, @@ -75,7 +76,6 @@ extern void fsl_ddr_get_spd(generic_spd_eeprom_t *ctrl_dimms_spd, * | interleaving */
-#ifdef DEBUG const char *step_string_tbl[] = { "STEP_GET_SPD", "STEP_COMPUTE_DIMM_PARMS", @@ -96,7 +96,6 @@ const char * step_to_string(unsigned int step) {
return step_string_tbl[s]; } -#endif
int step_assign_addresses(fsl_ddr_info_t *pinfo, unsigned int dbw_cap_adj[], @@ -405,7 +404,10 @@ phys_size_t fsl_ddr_sdram(void) memset(&info, 0, sizeof(fsl_ddr_info_t));
/* Compute it once normally. */ - total_memory = fsl_ddr_compute(&info, STEP_GET_SPD); + if (getenv("ddr_interactive")) + total_memory = fsl_ddr_interactive(&info); + else + total_memory = fsl_ddr_compute(&info, STEP_GET_SPD);
/* Check for memory controller interleaving. */ memctl_interleaved = 0; diff --git a/doc/README.fsl-ddr b/doc/README.fsl-ddr index a7ba193..13c9013 100644 --- a/doc/README.fsl-ddr +++ b/doc/README.fsl-ddr @@ -170,3 +170,23 @@ Single slot system
Reference http://www.xrosstalkmag.com/mag_issues/xrosstalk_oct08_final.pdf http://download.micron.com/pdf/technotes/ddr3/tn4108_ddr3_design_guide.pdf + + +Interactive DDR debugging +=========================== + +For DDR parameter tuning up and debugging, the interactive DDR debugging can +be activated by saving an environment variable "ddr_interactive". The value +doesn't matter. Once activated, U-boot prompts "FSL DDR>" before enabling DDR +controller. The available commands can be seen by typing "help". + +The example flow of using interactive debugging is +type command "compute" to calculate the parameters from the default +type command "print" with arguments to show SPD, options, registers +type command "edit" with arguments to change any if desired +type command "go" to continue calculation and enable DDR controller + +Note, check "next_step" to show the flow. For example, after editing registers, +DDR controller will be enabled with current setting without further +calculation. +