diff options
Diffstat (limited to 'arch/powerpc/cpu/mpc8xxx/ddr/options.c')
| -rw-r--r-- | arch/powerpc/cpu/mpc8xxx/ddr/options.c | 1147 |
1 files changed, 0 insertions, 1147 deletions
diff --git a/arch/powerpc/cpu/mpc8xxx/ddr/options.c b/arch/powerpc/cpu/mpc8xxx/ddr/options.c deleted file mode 100644 index 1297845553..0000000000 --- a/arch/powerpc/cpu/mpc8xxx/ddr/options.c +++ /dev/null @@ -1,1147 +0,0 @@ -/* - * Copyright 2008, 2010-2012 Freescale Semiconductor, Inc. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <hwconfig.h> -#include <asm/fsl_ddr_sdram.h> - -#include "ddr.h" - -/* - * Use our own stack based buffer before relocation to allow accessing longer - * hwconfig strings that might be in the environment before we've relocated. - * This is pretty fragile on both the use of stack and if the buffer is big - * enough. However we will get a warning from getenv_f for the later. - */ - -/* Board-specific functions defined in each board's ddr.c */ -extern void fsl_ddr_board_options(memctl_options_t *popts, - dimm_params_t *pdimm, - unsigned int ctrl_num); - -struct dynamic_odt { - unsigned int odt_rd_cfg; - unsigned int odt_wr_cfg; - unsigned int odt_rtt_norm; - unsigned int odt_rtt_wr; -}; - -#ifdef CONFIG_FSL_DDR3 -static const struct dynamic_odt single_Q[4] = { - { /* cs0 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_CS_AND_OTHER_DIMM, - DDR3_RTT_20_OHM, - DDR3_RTT_120_OHM - }, - { /* cs1 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_NEVER, /* tied high */ - DDR3_RTT_OFF, - DDR3_RTT_120_OHM - }, - { /* cs2 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_CS_AND_OTHER_DIMM, - DDR3_RTT_20_OHM, - DDR3_RTT_120_OHM - }, - { /* cs3 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_NEVER, /* tied high */ - DDR3_RTT_OFF, - DDR3_RTT_120_OHM - } -}; - -static const struct dynamic_odt single_D[4] = { - { /* cs0 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_ALL, - DDR3_RTT_40_OHM, - DDR3_RTT_OFF - }, - { /* cs1 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_NEVER, - DDR3_RTT_OFF, - DDR3_RTT_OFF - }, - {0, 0, 0, 0}, - {0, 0, 0, 0} -}; - -static const struct dynamic_odt single_S[4] = { - { /* cs0 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_ALL, - DDR3_RTT_40_OHM, - DDR3_RTT_OFF - }, - {0, 0, 0, 0}, - {0, 0, 0, 0}, - {0, 0, 0, 0}, -}; - -static const struct dynamic_odt dual_DD[4] = { - { /* cs0 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_SAME_DIMM, - DDR3_RTT_120_OHM, - DDR3_RTT_OFF - }, - { /* cs1 */ - FSL_DDR_ODT_OTHER_DIMM, - FSL_DDR_ODT_OTHER_DIMM, - DDR3_RTT_30_OHM, - DDR3_RTT_OFF - }, - { /* cs2 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_SAME_DIMM, - DDR3_RTT_120_OHM, - DDR3_RTT_OFF - }, - { /* cs3 */ - FSL_DDR_ODT_OTHER_DIMM, - FSL_DDR_ODT_OTHER_DIMM, - DDR3_RTT_30_OHM, - DDR3_RTT_OFF - } -}; - -static const struct dynamic_odt dual_DS[4] = { - { /* cs0 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_SAME_DIMM, - DDR3_RTT_120_OHM, - DDR3_RTT_OFF - }, - { /* cs1 */ - FSL_DDR_ODT_OTHER_DIMM, - FSL_DDR_ODT_OTHER_DIMM, - DDR3_RTT_30_OHM, - DDR3_RTT_OFF - }, - { /* cs2 */ - FSL_DDR_ODT_OTHER_DIMM, - FSL_DDR_ODT_ALL, - DDR3_RTT_20_OHM, - DDR3_RTT_120_OHM - }, - {0, 0, 0, 0} -}; -static const struct dynamic_odt dual_SD[4] = { - { /* cs0 */ - FSL_DDR_ODT_OTHER_DIMM, - FSL_DDR_ODT_ALL, - DDR3_RTT_20_OHM, - DDR3_RTT_120_OHM - }, - {0, 0, 0, 0}, - { /* cs2 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_SAME_DIMM, - DDR3_RTT_120_OHM, - DDR3_RTT_OFF - }, - { /* cs3 */ - FSL_DDR_ODT_OTHER_DIMM, - FSL_DDR_ODT_OTHER_DIMM, - DDR3_RTT_20_OHM, - DDR3_RTT_OFF - } -}; - -static const struct dynamic_odt dual_SS[4] = { - { /* cs0 */ - FSL_DDR_ODT_OTHER_DIMM, - FSL_DDR_ODT_ALL, - DDR3_RTT_30_OHM, - DDR3_RTT_120_OHM - }, - {0, 0, 0, 0}, - { /* cs2 */ - FSL_DDR_ODT_OTHER_DIMM, - FSL_DDR_ODT_ALL, - DDR3_RTT_30_OHM, - DDR3_RTT_120_OHM - }, - {0, 0, 0, 0} -}; - -static const struct dynamic_odt dual_D0[4] = { - { /* cs0 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_SAME_DIMM, - DDR3_RTT_40_OHM, - DDR3_RTT_OFF - }, - { /* cs1 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_NEVER, - DDR3_RTT_OFF, - DDR3_RTT_OFF - }, - {0, 0, 0, 0}, - {0, 0, 0, 0} -}; - -static const struct dynamic_odt dual_0D[4] = { - {0, 0, 0, 0}, - {0, 0, 0, 0}, - { /* cs2 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_SAME_DIMM, - DDR3_RTT_40_OHM, - DDR3_RTT_OFF - }, - { /* cs3 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_NEVER, - DDR3_RTT_OFF, - DDR3_RTT_OFF - } -}; - -static const struct dynamic_odt dual_S0[4] = { - { /* cs0 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_CS, - DDR3_RTT_40_OHM, - DDR3_RTT_OFF - }, - {0, 0, 0, 0}, - {0, 0, 0, 0}, - {0, 0, 0, 0} - -}; - -static const struct dynamic_odt dual_0S[4] = { - {0, 0, 0, 0}, - {0, 0, 0, 0}, - { /* cs2 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_CS, - DDR3_RTT_40_OHM, - DDR3_RTT_OFF - }, - {0, 0, 0, 0} - -}; - -static const struct dynamic_odt odt_unknown[4] = { - { /* cs0 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_CS, - DDR3_RTT_120_OHM, - DDR3_RTT_OFF - }, - { /* cs1 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_CS, - DDR3_RTT_120_OHM, - DDR3_RTT_OFF - }, - { /* cs2 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_CS, - DDR3_RTT_120_OHM, - DDR3_RTT_OFF - }, - { /* cs3 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_CS, - DDR3_RTT_120_OHM, - DDR3_RTT_OFF - } -}; -#else /* CONFIG_FSL_DDR3 */ -static const struct dynamic_odt single_Q[4] = { - {0, 0, 0, 0}, - {0, 0, 0, 0}, - {0, 0, 0, 0}, - {0, 0, 0, 0} -}; - -static const struct dynamic_odt single_D[4] = { - { /* cs0 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_ALL, - DDR2_RTT_150_OHM, - DDR2_RTT_OFF - }, - { /* cs1 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_NEVER, - DDR2_RTT_OFF, - DDR2_RTT_OFF - }, - {0, 0, 0, 0}, - {0, 0, 0, 0} -}; - -static const struct dynamic_odt single_S[4] = { - { /* cs0 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_ALL, - DDR2_RTT_150_OHM, - DDR2_RTT_OFF - }, - {0, 0, 0, 0}, - {0, 0, 0, 0}, - {0, 0, 0, 0}, -}; - -static const struct dynamic_odt dual_DD[4] = { - { /* cs0 */ - FSL_DDR_ODT_OTHER_DIMM, - FSL_DDR_ODT_OTHER_DIMM, - DDR2_RTT_75_OHM, - DDR2_RTT_OFF - }, - { /* cs1 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_NEVER, - DDR2_RTT_OFF, - DDR2_RTT_OFF - }, - { /* cs2 */ - FSL_DDR_ODT_OTHER_DIMM, - FSL_DDR_ODT_OTHER_DIMM, - DDR2_RTT_75_OHM, - DDR2_RTT_OFF - }, - { /* cs3 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_NEVER, - DDR2_RTT_OFF, - DDR2_RTT_OFF - } -}; - -static const struct dynamic_odt dual_DS[4] = { - { /* cs0 */ - FSL_DDR_ODT_OTHER_DIMM, - FSL_DDR_ODT_OTHER_DIMM, - DDR2_RTT_75_OHM, - DDR2_RTT_OFF - }, - { /* cs1 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_NEVER, - DDR2_RTT_OFF, - DDR2_RTT_OFF - }, - { /* cs2 */ - FSL_DDR_ODT_OTHER_DIMM, - FSL_DDR_ODT_OTHER_DIMM, - DDR2_RTT_75_OHM, - DDR2_RTT_OFF - }, - {0, 0, 0, 0} -}; - -static const struct dynamic_odt dual_SD[4] = { - { /* cs0 */ - FSL_DDR_ODT_OTHER_DIMM, - FSL_DDR_ODT_OTHER_DIMM, - DDR2_RTT_75_OHM, - DDR2_RTT_OFF - }, - {0, 0, 0, 0}, - { /* cs2 */ - FSL_DDR_ODT_OTHER_DIMM, - FSL_DDR_ODT_OTHER_DIMM, - DDR2_RTT_75_OHM, - DDR2_RTT_OFF - }, - { /* cs3 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_NEVER, - DDR2_RTT_OFF, - DDR2_RTT_OFF - } -}; - -static const struct dynamic_odt dual_SS[4] = { - { /* cs0 */ - FSL_DDR_ODT_OTHER_DIMM, - FSL_DDR_ODT_OTHER_DIMM, - DDR2_RTT_75_OHM, - DDR2_RTT_OFF - }, - {0, 0, 0, 0}, - { /* cs2 */ - FSL_DDR_ODT_OTHER_DIMM, - FSL_DDR_ODT_OTHER_DIMM, - DDR2_RTT_75_OHM, - DDR2_RTT_OFF - }, - {0, 0, 0, 0} -}; - -static const struct dynamic_odt dual_D0[4] = { - { /* cs0 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_ALL, - DDR2_RTT_150_OHM, - DDR2_RTT_OFF - }, - { /* cs1 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_NEVER, - DDR2_RTT_OFF, - DDR2_RTT_OFF - }, - {0, 0, 0, 0}, - {0, 0, 0, 0} -}; - -static const struct dynamic_odt dual_0D[4] = { - {0, 0, 0, 0}, - {0, 0, 0, 0}, - { /* cs2 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_ALL, - DDR2_RTT_150_OHM, - DDR2_RTT_OFF - }, - { /* cs3 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_NEVER, - DDR2_RTT_OFF, - DDR2_RTT_OFF - } -}; - -static const struct dynamic_odt dual_S0[4] = { - { /* cs0 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_CS, - DDR2_RTT_150_OHM, - DDR2_RTT_OFF - }, - {0, 0, 0, 0}, - {0, 0, 0, 0}, - {0, 0, 0, 0} - -}; - -static const struct dynamic_odt dual_0S[4] = { - {0, 0, 0, 0}, - {0, 0, 0, 0}, - { /* cs2 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_CS, - DDR2_RTT_150_OHM, - DDR2_RTT_OFF - }, - {0, 0, 0, 0} - -}; - -static const struct dynamic_odt odt_unknown[4] = { - { /* cs0 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_CS, - DDR2_RTT_75_OHM, - DDR2_RTT_OFF - }, - { /* cs1 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_NEVER, - DDR2_RTT_OFF, - DDR2_RTT_OFF - }, - { /* cs2 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_CS, - DDR2_RTT_75_OHM, - DDR2_RTT_OFF - }, - { /* cs3 */ - FSL_DDR_ODT_NEVER, - FSL_DDR_ODT_NEVER, - DDR2_RTT_OFF, - DDR2_RTT_OFF - } -}; -#endif - -/* - * Automatically seleect bank interleaving mode based on DIMMs - * in this order: cs0_cs1_cs2_cs3, cs0_cs1, null. - * This function only deal with one or two slots per controller. - */ -static inline unsigned int auto_bank_intlv(dimm_params_t *pdimm) -{ -#if (CONFIG_DIMM_SLOTS_PER_CTLR == 1) - if (pdimm[0].n_ranks == 4) - return FSL_DDR_CS0_CS1_CS2_CS3; - else if (pdimm[0].n_ranks == 2) - return FSL_DDR_CS0_CS1; -#elif (CONFIG_DIMM_SLOTS_PER_CTLR == 2) -#ifdef CONFIG_FSL_DDR_FIRST_SLOT_QUAD_CAPABLE - if (pdimm[0].n_ranks == 4) - return FSL_DDR_CS0_CS1_CS2_CS3; -#endif - if (pdimm[0].n_ranks == 2) { - if (pdimm[1].n_ranks == 2) - return FSL_DDR_CS0_CS1_CS2_CS3; - else - return FSL_DDR_CS0_CS1; - } -#endif - return 0; -} - -unsigned int populate_memctl_options(int all_dimms_registered, - memctl_options_t *popts, - dimm_params_t *pdimm, - unsigned int ctrl_num) -{ - unsigned int i; - char buffer[HWCONFIG_BUFFER_SIZE]; - char *buf = NULL; -#if defined(CONFIG_FSL_DDR3) || defined(CONFIG_FSL_DDR2) - const struct dynamic_odt *pdodt = odt_unknown; -#endif - ulong ddr_freq; - - /* - * Extract hwconfig from environment since we have not properly setup - * the environment but need it for ddr config params - */ - if (getenv_f("hwconfig", buffer, sizeof(buffer)) > 0) - buf = buffer; - -#if defined(CONFIG_FSL_DDR3) || defined(CONFIG_FSL_DDR2) - /* Chip select options. */ - if (CONFIG_DIMM_SLOTS_PER_CTLR == 1) { - switch (pdimm[0].n_ranks) { - case 1: - pdodt = single_S; - break; - case 2: - pdodt = single_D; - break; - case 4: - pdodt = single_Q; - break; - } - } else if (CONFIG_DIMM_SLOTS_PER_CTLR == 2) { - switch (pdimm[0].n_ranks) { -#ifdef CONFIG_FSL_DDR_FIRST_SLOT_QUAD_CAPABLE - case 4: - pdodt = single_Q; - if (pdimm[1].n_ranks) - printf("Error: Quad- and Dual-rank DIMMs " - "cannot be used together\n"); - break; -#endif - case 2: - switch (pdimm[1].n_ranks) { - case 2: - pdodt = dual_DD; - break; - case 1: - pdodt = dual_DS; - break; - case 0: - pdodt = dual_D0; - break; - } - break; - case 1: - switch (pdimm[1].n_ranks) { - case 2: - pdodt = dual_SD; - break; - case 1: - pdodt = dual_SS; - break; - case 0: - pdodt = dual_S0; - break; - } - break; - case 0: - switch (pdimm[1].n_ranks) { - case 2: - pdodt = dual_0D; - break; - case 1: - pdodt = dual_0S; - break; - } - break; - } - } -#endif - - /* Pick chip-select local options. */ - for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { -#if defined(CONFIG_FSL_DDR3) || defined(CONFIG_FSL_DDR2) - popts->cs_local_opts[i].odt_rd_cfg = pdodt[i].odt_rd_cfg; - popts->cs_local_opts[i].odt_wr_cfg = pdodt[i].odt_wr_cfg; - popts->cs_local_opts[i].odt_rtt_norm = pdodt[i].odt_rtt_norm; - popts->cs_local_opts[i].odt_rtt_wr = pdodt[i].odt_rtt_wr; -#else - 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 - popts->cs_local_opts[i].auto_precharge = 0; - } - - /* Pick interleaving mode. */ - - /* - * 0 = no interleaving - * 1 = interleaving between 2 controllers - */ - popts->memctl_interleaving = 0; - - /* - * 0 = cacheline - * 1 = page - * 2 = (logical) bank - * 3 = superbank (only if CS interleaving is enabled) - */ - popts->memctl_interleaving_mode = 0; - - /* - * 0: cacheline: bit 30 of the 36-bit physical addr selects the memctl - * 1: page: bit to the left of the column bits selects the memctl - * 2: bank: bit to the left of the bank bits selects the memctl - * 3: superbank: bit to the left of the chip select selects the memctl - * - * NOTE: ba_intlv (rank interleaving) is independent of memory - * controller interleaving; it is only within a memory controller. - * Must use superbank interleaving if rank interleaving is used and - * memory controller interleaving is enabled. - */ - - /* - * 0 = no - * 0x40 = CS0,CS1 - * 0x20 = CS2,CS3 - * 0x60 = CS0,CS1 + CS2,CS3 - * 0x04 = CS0,CS1,CS2,CS3 - */ - popts->ba_intlv_ctl = 0; - - /* Memory Organization Parameters */ - popts->registered_dimm_en = all_dimms_registered; - - /* Operational Mode Paramters */ - - /* Pick ECC modes */ - popts->ecc_mode = 0; /* 0 = disabled, 1 = enabled */ -#ifdef CONFIG_DDR_ECC - if (hwconfig_sub_f("fsl_ddr", "ecc", buf)) { - if (hwconfig_subarg_cmp_f("fsl_ddr", "ecc", "on", buf)) - popts->ecc_mode = 1; - } else - popts->ecc_mode = 1; -#endif - popts->ecc_init_using_memctl = 1; /* 0 = use DMA, 1 = use memctl */ - - /* - * Choose DQS config - * 0 for DDR1 - * 1 for DDR2 - */ -#if defined(CONFIG_FSL_DDR1) - popts->dqs_config = 0; -#elif defined(CONFIG_FSL_DDR2) || defined(CONFIG_FSL_DDR3) - popts->dqs_config = 1; -#endif - - /* Choose self-refresh during sleep. */ - popts->self_refresh_in_sleep = 1; - - /* Choose dynamic power management mode. */ - popts->dynamic_power = 0; - - /* - * check first dimm for primary sdram width - * presuming all dimms are similar - * 0 = 64-bit, 1 = 32-bit, 2 = 16-bit - */ -#if defined(CONFIG_FSL_DDR1) || defined(CONFIG_FSL_DDR2) - if (pdimm[0].n_ranks != 0) { - if ((pdimm[0].data_width >= 64) && \ - (pdimm[0].data_width <= 72)) - popts->data_bus_width = 0; - else if ((pdimm[0].data_width >= 32) || \ - (pdimm[0].data_width <= 40)) - popts->data_bus_width = 1; - else { - panic("Error: data width %u is invalid!\n", - pdimm[0].data_width); - } - } -#else - if (pdimm[0].n_ranks != 0) { - if (pdimm[0].primary_sdram_width == 64) - popts->data_bus_width = 0; - else if (pdimm[0].primary_sdram_width == 32) - popts->data_bus_width = 1; - else if (pdimm[0].primary_sdram_width == 16) - popts->data_bus_width = 2; - else { - panic("Error: primary sdram width %u is invalid!\n", - pdimm[0].primary_sdram_width); - } - } -#endif - - popts->x4_en = (pdimm[0].device_width == 4) ? 1 : 0; - - /* Choose burst length. */ -#if defined(CONFIG_FSL_DDR3) -#if defined(CONFIG_E500MC) - popts->otf_burst_chop_en = 0; /* on-the-fly burst chop disable */ - popts->burst_length = DDR_BL8; /* Fixed 8-beat burst len */ -#else - if ((popts->data_bus_width == 1) || (popts->data_bus_width == 2)) { - /* 32-bit or 16-bit bus */ - popts->otf_burst_chop_en = 0; - popts->burst_length = DDR_BL8; - } else { - popts->otf_burst_chop_en = 1; /* on-the-fly burst chop */ - popts->burst_length = DDR_OTF; /* on-the-fly BC4 and BL8 */ - } -#endif -#else - popts->burst_length = DDR_BL4; /* has to be 4 for DDR2 */ -#endif - - /* Choose ddr controller address mirror mode */ -#if defined(CONFIG_FSL_DDR3) - popts->mirrored_dimm = pdimm[0].mirrored_dimm; -#endif - - /* Global Timing Parameters. */ - debug("mclk_ps = %u ps\n", get_memory_clk_period_ps()); - - /* Pick a caslat override. */ - popts->cas_latency_override = 0; - popts->cas_latency_override_value = 3; - if (popts->cas_latency_override) { - debug("using caslat override value = %u\n", - popts->cas_latency_override_value); - } - - /* Decide whether to use the computed derated latency */ - popts->use_derated_caslat = 0; - - /* Choose an additive latency. */ - popts->additive_latency_override = 0; - popts->additive_latency_override_value = 3; - if (popts->additive_latency_override) { - debug("using additive latency override value = %u\n", - popts->additive_latency_override_value); - } - - /* - * 2T_EN setting - * - * Factors to consider for 2T_EN: - * - number of DIMMs installed - * - number of components, number of active ranks - * - how much time you want to spend playing around - */ - popts->twot_en = 0; - popts->threet_en = 0; - - /* for RDIMM, address parity enable */ - popts->ap_en = 1; - - /* - * BSTTOPRE precharge interval - * - * Set this to 0 for global auto precharge - * - * FIXME: Should this be configured in picoseconds? - * Why it should be in ps: better understanding of this - * relative to actual DRAM timing parameters such as tRAS. - * e.g. tRAS(min) = 40 ns - */ - popts->bstopre = 0x100; - - /* Minimum CKE pulse width -- tCKE(MIN) */ - popts->tcke_clock_pulse_width_ps - = mclk_to_picos(FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR); - - /* - * Window for four activates -- tFAW - * - * FIXME: UM: applies only to DDR2/DDR3 with eight logical banks only - * FIXME: varies depending upon number of column addresses or data - * FIXME: width, was considering looking at pdimm->primary_sdram_width - */ -#if defined(CONFIG_FSL_DDR1) - popts->tfaw_window_four_activates_ps = mclk_to_picos(1); - -#elif defined(CONFIG_FSL_DDR2) - /* - * x4/x8; some datasheets have 35000 - * x16 wide columns only? Use 50000? - */ - popts->tfaw_window_four_activates_ps = 37500; - -#elif defined(CONFIG_FSL_DDR3) - popts->tfaw_window_four_activates_ps = pdimm[0].tfaw_ps; -#endif - popts->zq_en = 0; - popts->wrlvl_en = 0; -#if defined(CONFIG_FSL_DDR3) - /* - * due to ddr3 dimm is fly-by topology - * we suggest to enable write leveling to - * meet the tQDSS under different loading. - */ - popts->wrlvl_en = 1; - popts->zq_en = 1; - popts->wrlvl_override = 0; -#endif - - /* - * Check interleaving configuration from environment. - * Please refer to doc/README.fsl-ddr for the detail. - * - * If memory controller interleaving is enabled, then the data - * bus widths must be programmed identically for all memory controllers. - * - * XXX: Attempt to set all controllers to the same chip select - * interleaving mode. It will do a best effort to get the - * requested ranks interleaved together such that the result - * should be a subset of the requested configuration. - */ -#if (CONFIG_NUM_DDR_CONTROLLERS > 1) - if (!hwconfig_sub_f("fsl_ddr", "ctlr_intlv", buf)) - goto done; - - if (pdimm[0].n_ranks == 0) { - printf("There is no rank on CS0 for controller %d.\n", ctrl_num); - popts->memctl_interleaving = 0; - goto done; - } - popts->memctl_interleaving = 1; - /* - * test null first. if CONFIG_HWCONFIG is not defined - * hwconfig_arg_cmp returns non-zero - */ - if (hwconfig_subarg_cmp_f("fsl_ddr", "ctlr_intlv", - "null", buf)) { - popts->memctl_interleaving = 0; - debug("memory controller interleaving disabled.\n"); - } else if (hwconfig_subarg_cmp_f("fsl_ddr", - "ctlr_intlv", - "cacheline", buf)) { - popts->memctl_interleaving_mode = - ((CONFIG_NUM_DDR_CONTROLLERS == 3) && ctrl_num == 2) ? - 0 : FSL_DDR_CACHE_LINE_INTERLEAVING; - popts->memctl_interleaving = - ((CONFIG_NUM_DDR_CONTROLLERS == 3) && ctrl_num == 2) ? - 0 : 1; - } else if (hwconfig_subarg_cmp_f("fsl_ddr", - "ctlr_intlv", - "page", buf)) { - popts->memctl_interleaving_mode = - ((CONFIG_NUM_DDR_CONTROLLERS == 3) && ctrl_num == 2) ? - 0 : FSL_DDR_PAGE_INTERLEAVING; - popts->memctl_interleaving = - ((CONFIG_NUM_DDR_CONTROLLERS == 3) && ctrl_num == 2) ? - 0 : 1; - } else if (hwconfig_subarg_cmp_f("fsl_ddr", - "ctlr_intlv", - "bank", buf)) { - popts->memctl_interleaving_mode = - ((CONFIG_NUM_DDR_CONTROLLERS == 3) && ctrl_num == 2) ? - 0 : FSL_DDR_BANK_INTERLEAVING; - popts->memctl_interleaving = - ((CONFIG_NUM_DDR_CONTROLLERS == 3) && ctrl_num == 2) ? - 0 : 1; - } else if (hwconfig_subarg_cmp_f("fsl_ddr", - "ctlr_intlv", - "superbank", buf)) { - popts->memctl_interleaving_mode = - ((CONFIG_NUM_DDR_CONTROLLERS == 3) && ctrl_num == 2) ? - 0 : FSL_DDR_SUPERBANK_INTERLEAVING; - popts->memctl_interleaving = - ((CONFIG_NUM_DDR_CONTROLLERS == 3) && ctrl_num == 2) ? - 0 : 1; -#if (CONFIG_NUM_DDR_CONTROLLERS == 3) - } else if (hwconfig_subarg_cmp_f("fsl_ddr", - "ctlr_intlv", - "3way_1KB", buf)) { - popts->memctl_interleaving_mode = - FSL_DDR_3WAY_1KB_INTERLEAVING; - } else if (hwconfig_subarg_cmp_f("fsl_ddr", - "ctlr_intlv", - "3way_4KB", buf)) { - popts->memctl_interleaving_mode = - FSL_DDR_3WAY_4KB_INTERLEAVING; - } else if (hwconfig_subarg_cmp_f("fsl_ddr", - "ctlr_intlv", - "3way_8KB", buf)) { - popts->memctl_interleaving_mode = - FSL_DDR_3WAY_8KB_INTERLEAVING; -#elif (CONFIG_NUM_DDR_CONTROLLERS == 4) - } else if (hwconfig_subarg_cmp_f("fsl_ddr", - "ctlr_intlv", - "4way_1KB", buf)) { - popts->memctl_interleaving_mode = - FSL_DDR_4WAY_1KB_INTERLEAVING; - } else if (hwconfig_subarg_cmp_f("fsl_ddr", - "ctlr_intlv", - "4way_4KB", buf)) { - popts->memctl_interleaving_mode = - FSL_DDR_4WAY_4KB_INTERLEAVING; - } else if (hwconfig_subarg_cmp_f("fsl_ddr", - "ctlr_intlv", - "4way_8KB", buf)) { - popts->memctl_interleaving_mode = - FSL_DDR_4WAY_8KB_INTERLEAVING; -#endif - } else { - popts->memctl_interleaving = 0; - printf("hwconfig has unrecognized parameter for ctlr_intlv.\n"); - } -done: -#endif - if ((hwconfig_sub_f("fsl_ddr", "bank_intlv", buf)) && - (CONFIG_CHIP_SELECTS_PER_CTRL > 1)) { - /* test null first. if CONFIG_HWCONFIG is not defined, - * hwconfig_subarg_cmp_f returns non-zero */ - if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv", - "null", buf)) - debug("bank interleaving disabled.\n"); - else if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv", - "cs0_cs1", buf)) - popts->ba_intlv_ctl = FSL_DDR_CS0_CS1; - else if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv", - "cs2_cs3", buf)) - popts->ba_intlv_ctl = FSL_DDR_CS2_CS3; - else if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv", - "cs0_cs1_and_cs2_cs3", buf)) - popts->ba_intlv_ctl = FSL_DDR_CS0_CS1_AND_CS2_CS3; - else if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv", - "cs0_cs1_cs2_cs3", buf)) - popts->ba_intlv_ctl = FSL_DDR_CS0_CS1_CS2_CS3; - else if (hwconfig_subarg_cmp_f("fsl_ddr", "bank_intlv", - "auto", buf)) - popts->ba_intlv_ctl = auto_bank_intlv(pdimm); - else - printf("hwconfig has unrecognized parameter for bank_intlv.\n"); - switch (popts->ba_intlv_ctl & FSL_DDR_CS0_CS1_CS2_CS3) { - case FSL_DDR_CS0_CS1_CS2_CS3: -#if (CONFIG_DIMM_SLOTS_PER_CTLR == 1) - if (pdimm[0].n_ranks < 4) { - popts->ba_intlv_ctl = 0; - printf("Not enough bank(chip-select) for " - "CS0+CS1+CS2+CS3 on controller %d, " - "interleaving disabled!\n", ctrl_num); - } -#elif (CONFIG_DIMM_SLOTS_PER_CTLR == 2) -#ifdef CONFIG_FSL_DDR_FIRST_SLOT_QUAD_CAPABLE - if (pdimm[0].n_ranks == 4) - break; -#endif - if ((pdimm[0].n_ranks < 2) && (pdimm[1].n_ranks < 2)) { - popts->ba_intlv_ctl = 0; - printf("Not enough bank(chip-select) for " - "CS0+CS1+CS2+CS3 on controller %d, " - "interleaving disabled!\n", ctrl_num); - } - if (pdimm[0].capacity != pdimm[1].capacity) { - popts->ba_intlv_ctl = 0; - printf("Not identical DIMM size for " - "CS0+CS1+CS2+CS3 on controller %d, " - "interleaving disabled!\n", ctrl_num); - } -#endif - break; - case FSL_DDR_CS0_CS1: - if (pdimm[0].n_ranks < 2) { - popts->ba_intlv_ctl = 0; - printf("Not enough bank(chip-select) for " - "CS0+CS1 on controller %d, " - "interleaving disabled!\n", ctrl_num); - } - break; - case FSL_DDR_CS2_CS3: -#if (CONFIG_DIMM_SLOTS_PER_CTLR == 1) - if (pdimm[0].n_ranks < 4) { - popts->ba_intlv_ctl = 0; - printf("Not enough bank(chip-select) for CS2+CS3 " - "on controller %d, interleaving disabled!\n", ctrl_num); - } -#elif (CONFIG_DIMM_SLOTS_PER_CTLR == 2) - if (pdimm[1].n_ranks < 2) { - popts->ba_intlv_ctl = 0; - printf("Not enough bank(chip-select) for CS2+CS3 " - "on controller %d, interleaving disabled!\n", ctrl_num); - } -#endif - break; - case FSL_DDR_CS0_CS1_AND_CS2_CS3: -#if (CONFIG_DIMM_SLOTS_PER_CTLR == 1) - if (pdimm[0].n_ranks < 4) { - popts->ba_intlv_ctl = 0; - printf("Not enough bank(CS) for CS0+CS1 and " - "CS2+CS3 on controller %d, " - "interleaving disabled!\n", ctrl_num); - } -#elif (CONFIG_DIMM_SLOTS_PER_CTLR == 2) - if ((pdimm[0].n_ranks < 2) || (pdimm[1].n_ranks < 2)) { - popts->ba_intlv_ctl = 0; - printf("Not enough bank(CS) for CS0+CS1 and " - "CS2+CS3 on controller %d, " - "interleaving disabled!\n", ctrl_num); - } -#endif - break; - default: - popts->ba_intlv_ctl = 0; - break; - } - } - - if (hwconfig_sub_f("fsl_ddr", "addr_hash", buf)) { - if (hwconfig_subarg_cmp_f("fsl_ddr", "addr_hash", "null", buf)) - popts->addr_hash = 0; - else if (hwconfig_subarg_cmp_f("fsl_ddr", "addr_hash", - "true", buf)) - popts->addr_hash = 1; - } - - if (pdimm[0].n_ranks == 4) - popts->quad_rank_present = 1; - - ddr_freq = get_ddr_freq(0) / 1000000; - if (popts->registered_dimm_en) { - popts->rcw_override = 1; - popts->rcw_1 = 0x000a5a00; - if (ddr_freq <= 800) - popts->rcw_2 = 0x00000000; - else if (ddr_freq <= 1066) - popts->rcw_2 = 0x00100000; - else if (ddr_freq <= 1333) - popts->rcw_2 = 0x00200000; - else - popts->rcw_2 = 0x00300000; - } - - fsl_ddr_board_options(popts, pdimm, ctrl_num); - - return 0; -} - -void check_interleaving_options(fsl_ddr_info_t *pinfo) -{ - int i, j, k, check_n_ranks, intlv_invalid = 0; - unsigned int check_intlv, check_n_row_addr, check_n_col_addr; - unsigned long long check_rank_density; - struct dimm_params_s *dimm; - /* - * Check if all controllers are configured for memory - * controller interleaving. Identical dimms are recommended. At least - * the size, row and col address should be checked. - */ - j = 0; - check_n_ranks = pinfo->dimm_params[0][0].n_ranks; - check_rank_density = pinfo->dimm_params[0][0].rank_density; - check_n_row_addr = pinfo->dimm_params[0][0].n_row_addr; - check_n_col_addr = pinfo->dimm_params[0][0].n_col_addr; - check_intlv = pinfo->memctl_opts[0].memctl_interleaving_mode; - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { - dimm = &pinfo->dimm_params[i][0]; - if (!pinfo->memctl_opts[i].memctl_interleaving) { - continue; - } else if (((check_rank_density != dimm->rank_density) || - (check_n_ranks != dimm->n_ranks) || - (check_n_row_addr != dimm->n_row_addr) || - (check_n_col_addr != dimm->n_col_addr) || - (check_intlv != - pinfo->memctl_opts[i].memctl_interleaving_mode))){ - intlv_invalid = 1; - break; - } else { - j++; - } - - } - if (intlv_invalid) { - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) - pinfo->memctl_opts[i].memctl_interleaving = 0; - printf("Not all DIMMs are identical. " - "Memory controller interleaving disabled.\n"); - } else { - switch (check_intlv) { - case FSL_DDR_CACHE_LINE_INTERLEAVING: - case FSL_DDR_PAGE_INTERLEAVING: - case FSL_DDR_BANK_INTERLEAVING: - case FSL_DDR_SUPERBANK_INTERLEAVING: - if (3 == CONFIG_NUM_DDR_CONTROLLERS) - k = 2; - else - k = CONFIG_NUM_DDR_CONTROLLERS; - break; - case FSL_DDR_3WAY_1KB_INTERLEAVING: - case FSL_DDR_3WAY_4KB_INTERLEAVING: - case FSL_DDR_3WAY_8KB_INTERLEAVING: - case FSL_DDR_4WAY_1KB_INTERLEAVING: - case FSL_DDR_4WAY_4KB_INTERLEAVING: - case FSL_DDR_4WAY_8KB_INTERLEAVING: - default: - k = CONFIG_NUM_DDR_CONTROLLERS; - break; - } - debug("%d of %d controllers are interleaving.\n", j, k); - if (j && (j != k)) { - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) - pinfo->memctl_opts[i].memctl_interleaving = 0; - printf("Not all controllers have compatible " - "interleaving mode. All disabled.\n"); - } - } - debug("Checking interleaving options completed\n"); -} - -int fsl_use_spd(void) -{ - int use_spd = 0; - -#ifdef CONFIG_DDR_SPD - char buffer[HWCONFIG_BUFFER_SIZE]; - char *buf = NULL; - - /* - * Extract hwconfig from environment since we have not properly setup - * the environment but need it for ddr config params - */ - if (getenv_f("hwconfig", buffer, sizeof(buffer)) > 0) - buf = buffer; - - /* if hwconfig is not enabled, or "sdram" is not defined, use spd */ - if (hwconfig_sub_f("fsl_ddr", "sdram", buf)) { - if (hwconfig_subarg_cmp_f("fsl_ddr", "sdram", "spd", buf)) - use_spd = 1; - else if (hwconfig_subarg_cmp_f("fsl_ddr", "sdram", - "fixed", buf)) - use_spd = 0; - else - use_spd = 1; - } else - use_spd = 1; -#endif - - return use_spd; -} |