diff options
Diffstat (limited to 'arch/ppc/cpu/mpc8xxx')
| -rw-r--r-- | arch/ppc/cpu/mpc8xxx/Makefile | 27 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc8xxx/cpu.c | 144 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc8xxx/ddr/Makefile | 35 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc8xxx/ddr/common_timing_params.h | 53 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc8xxx/ddr/ctrl_regs.c | 1366 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc8xxx/ddr/ddr.h | 81 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc8xxx/ddr/ddr1_dimm_params.c | 343 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc8xxx/ddr/ddr2_dimm_params.c | 339 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c | 314 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c | 468 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc8xxx/ddr/main.c | 479 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc8xxx/ddr/options.c | 297 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc8xxx/ddr/util.c | 206 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc8xxx/fdt.c | 55 | ||||
| -rw-r--r-- | arch/ppc/cpu/mpc8xxx/pci_cfg.c | 214 |
15 files changed, 0 insertions, 4421 deletions
diff --git a/arch/ppc/cpu/mpc8xxx/Makefile b/arch/ppc/cpu/mpc8xxx/Makefile deleted file mode 100644 index 481f9e5..0000000 --- a/arch/ppc/cpu/mpc8xxx/Makefile +++ /dev/null @@ -1,27 +0,0 @@ -# -# Copyright 2009 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 $(TOPDIR)/config.mk - -LIB = $(obj)lib8xxx.a - -COBJS-y += cpu.o -COBJS-$(CONFIG_OF_LIBFDT) += fdt.o -COBJS-$(CONFIG_PCI) += pci_cfg.o - -SRCS := $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) -OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) - -all: $(obj).depend $(LIB) - -$(LIB): $(OBJS) - $(AR) $(ARFLAGS) $@ $(OBJS) - -include $(SRCTREE)/rules.mk - -sinclude $(obj).depend diff --git a/arch/ppc/cpu/mpc8xxx/cpu.c b/arch/ppc/cpu/mpc8xxx/cpu.c deleted file mode 100644 index fef062b..0000000 --- a/arch/ppc/cpu/mpc8xxx/cpu.c +++ /dev/null @@ -1,144 +0,0 @@ -/* - * Copyright 2009-2010 Freescale Semiconductor, Inc. - * - * This file is derived from arch/ppc/cpu/mpc85xx/cpu.c and - * arch/ppc/cpu/mpc86xx/cpu.c. Basically this file contains - * cpu specific common code for 85xx/86xx processors. - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <config.h> -#include <common.h> -#include <command.h> -#include <tsec.h> -#include <netdev.h> -#include <asm/cache.h> -#include <asm/io.h> - -DECLARE_GLOBAL_DATA_PTR; - -struct cpu_type cpu_type_list [] = { -#if defined(CONFIG_MPC85xx) - CPU_TYPE_ENTRY(8533, 8533, 1), - CPU_TYPE_ENTRY(8533, 8533_E, 1), - CPU_TYPE_ENTRY(8535, 8535, 1), - CPU_TYPE_ENTRY(8535, 8535_E, 1), - CPU_TYPE_ENTRY(8536, 8536, 1), - CPU_TYPE_ENTRY(8536, 8536_E, 1), - CPU_TYPE_ENTRY(8540, 8540, 1), - CPU_TYPE_ENTRY(8541, 8541, 1), - CPU_TYPE_ENTRY(8541, 8541_E, 1), - CPU_TYPE_ENTRY(8543, 8543, 1), - CPU_TYPE_ENTRY(8543, 8543_E, 1), - CPU_TYPE_ENTRY(8544, 8544, 1), - CPU_TYPE_ENTRY(8544, 8544_E, 1), - CPU_TYPE_ENTRY(8545, 8545, 1), - CPU_TYPE_ENTRY(8545, 8545_E, 1), - CPU_TYPE_ENTRY(8547, 8547_E, 1), - CPU_TYPE_ENTRY(8548, 8548, 1), - CPU_TYPE_ENTRY(8548, 8548_E, 1), - CPU_TYPE_ENTRY(8555, 8555, 1), - CPU_TYPE_ENTRY(8555, 8555_E, 1), - CPU_TYPE_ENTRY(8560, 8560, 1), - CPU_TYPE_ENTRY(8567, 8567, 1), - CPU_TYPE_ENTRY(8567, 8567_E, 1), - CPU_TYPE_ENTRY(8568, 8568, 1), - CPU_TYPE_ENTRY(8568, 8568_E, 1), - CPU_TYPE_ENTRY(8569, 8569, 1), - CPU_TYPE_ENTRY(8569, 8569_E, 1), - CPU_TYPE_ENTRY(8572, 8572, 2), - CPU_TYPE_ENTRY(8572, 8572_E, 2), - CPU_TYPE_ENTRY(P1011, P1011, 1), - CPU_TYPE_ENTRY(P1011, P1011_E, 1), - CPU_TYPE_ENTRY(P1012, P1012, 1), - CPU_TYPE_ENTRY(P1012, P1012_E, 1), - CPU_TYPE_ENTRY(P1013, P1013, 1), - CPU_TYPE_ENTRY(P1013, P1013_E, 1), - CPU_TYPE_ENTRY(P1020, P1020, 2), - CPU_TYPE_ENTRY(P1020, P1020_E, 2), - CPU_TYPE_ENTRY(P1021, P1021, 2), - CPU_TYPE_ENTRY(P1021, P1021_E, 2), - CPU_TYPE_ENTRY(P1022, P1022, 2), - CPU_TYPE_ENTRY(P1022, P1022_E, 2), - CPU_TYPE_ENTRY(P2010, P2010, 1), - CPU_TYPE_ENTRY(P2010, P2010_E, 1), - CPU_TYPE_ENTRY(P2020, P2020, 2), - CPU_TYPE_ENTRY(P2020, P2020_E, 2), - CPU_TYPE_ENTRY(P4040, P4040, 4), - CPU_TYPE_ENTRY(P4040, P4040_E, 4), - CPU_TYPE_ENTRY(P4080, P4080, 8), - CPU_TYPE_ENTRY(P4080, P4080_E, 8), -#elif defined(CONFIG_MPC86xx) - CPU_TYPE_ENTRY(8610, 8610, 1), - CPU_TYPE_ENTRY(8641, 8641, 2), - CPU_TYPE_ENTRY(8641D, 8641D, 2), -#endif -}; - -struct cpu_type cpu_type_unknown = CPU_TYPE_ENTRY(Unknown, Unknown, 1); - -struct cpu_type *identify_cpu(u32 ver) -{ - int i; - for (i = 0; i < ARRAY_SIZE(cpu_type_list); i++) { - if (cpu_type_list[i].soc_ver == ver) - return &cpu_type_list[i]; - } - return &cpu_type_unknown; -} - -int cpu_numcores() { - struct cpu_type *cpu; - cpu = gd->cpu; - return cpu->num_cores; -} - -int probecpu (void) -{ - uint svr; - uint ver; - - svr = get_svr(); - ver = SVR_SOC_VER(svr); - - gd->cpu = identify_cpu(ver); - - return 0; -} - -/* - * Initializes on-chip ethernet controllers. - * to override, implement board_eth_init() - */ -int cpu_eth_init(bd_t *bis) -{ -#if defined(CONFIG_ETHER_ON_FCC) - fec_initialize(bis); -#endif - -#if defined(CONFIG_UEC_ETH) - uec_standard_init(bis); -#endif - -#if defined(CONFIG_TSEC_ENET) || defined(CONFIG_MPC85XX_FEC) - tsec_standard_init(bis); -#endif - - return 0; -} diff --git a/arch/ppc/cpu/mpc8xxx/ddr/Makefile b/arch/ppc/cpu/mpc8xxx/ddr/Makefile deleted file mode 100644 index cb7f856..0000000 --- a/arch/ppc/cpu/mpc8xxx/ddr/Makefile +++ /dev/null @@ -1,35 +0,0 @@ -# -# Copyright 2008 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 $(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 -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 -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 -COBJS-$(CONFIG_FSL_DDR3) += ddr3_dimm_params.o - -SRCS := $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) -OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) - -all: $(obj).depend $(LIB) - -$(LIB): $(OBJS) - $(AR) $(ARFLAGS) $@ $(OBJS) - -include $(SRCTREE)/rules.mk - -sinclude $(obj).depend diff --git a/arch/ppc/cpu/mpc8xxx/ddr/common_timing_params.h b/arch/ppc/cpu/mpc8xxx/ddr/common_timing_params.h deleted file mode 100644 index 5aea517..0000000 --- a/arch/ppc/cpu/mpc8xxx/ddr/common_timing_params.h +++ /dev/null @@ -1,53 +0,0 @@ -/* - * Copyright 2008 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. - */ - -#ifndef COMMON_TIMING_PARAMS_H -#define COMMON_TIMING_PARAMS_H - -typedef struct { - /* parameters to constrict */ - - unsigned int tCKmin_X_ps; - unsigned int tCKmax_ps; - unsigned int tCKmax_max_ps; - unsigned int tRCD_ps; - unsigned int tRP_ps; - unsigned int tRAS_ps; - - unsigned int tWR_ps; /* maximum = 63750 ps */ - unsigned int tWTR_ps; /* maximum = 63750 ps */ - unsigned int tRFC_ps; /* maximum = 255 ns + 256 ns + .75 ns - = 511750 ps */ - - unsigned int tRRD_ps; /* maximum = 63750 ps */ - unsigned int tRC_ps; /* maximum = 254 ns + .75 ns = 254750 ps */ - - unsigned int refresh_rate_ps; - - unsigned int tIS_ps; /* byte 32, spd->ca_setup */ - unsigned int tIH_ps; /* byte 33, spd->ca_hold */ - unsigned int tDS_ps; /* byte 34, spd->data_setup */ - unsigned int tDH_ps; /* byte 35, spd->data_hold */ - unsigned int tRTP_ps; /* byte 38, spd->trtp */ - unsigned int tDQSQ_max_ps; /* byte 44, spd->tdqsq */ - unsigned int tQHS_ps; /* byte 45, spd->tqhs */ - - unsigned int ndimms_present; - unsigned int lowest_common_SPD_caslat; - unsigned int highest_common_derated_caslat; - unsigned int additive_latency; - unsigned int all_DIMMs_burst_lengths_bitmask; - unsigned int all_DIMMs_registered; - unsigned int all_DIMMs_unbuffered; - unsigned int all_DIMMs_ECC_capable; - - unsigned long long total_mem; - unsigned long long base_address; -} common_timing_params_t; - -#endif diff --git a/arch/ppc/cpu/mpc8xxx/ddr/ctrl_regs.c b/arch/ppc/cpu/mpc8xxx/ddr/ctrl_regs.c deleted file mode 100644 index 03f9c43..0000000 --- a/arch/ppc/cpu/mpc8xxx/ddr/ctrl_regs.c +++ /dev/null @@ -1,1366 +0,0 @@ -/* - * Copyright 2008-2010 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 as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - */ - -/* - * Generic driver for Freescale DDR/DDR2/DDR3 memory controller. - * Based on code from spd_sdram.c - * Author: James Yang [at freescale.com] - */ - -#include <common.h> -#include <asm/fsl_ddr_sdram.h> - -#include "ddr.h" - -extern unsigned int picos_to_mclk(unsigned int picos); -/* - * Determine Rtt value. - * - * This should likely be either board or controller specific. - * - * Rtt(nominal) - DDR2: - * 0 = Rtt disabled - * 1 = 75 ohm - * 2 = 150 ohm - * 3 = 50 ohm - * Rtt(nominal) - DDR3: - * 0 = Rtt disabled - * 1 = 60 ohm - * 2 = 120 ohm - * 3 = 40 ohm - * 4 = 20 ohm - * 5 = 30 ohm - * - * FIXME: Apparently 8641 needs a value of 2 - * FIXME: Old code seys if 667 MHz or higher, use 3 on 8572 - * - * FIXME: There was some effort down this line earlier: - * - * unsigned int i; - * for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL/2; i++) { - * if (popts->dimmslot[i].num_valid_cs - * && (popts->cs_local_opts[2*i].odt_rd_cfg - * || popts->cs_local_opts[2*i].odt_wr_cfg)) { - * rtt = 2; - * break; - * } - * } - */ -static inline int fsl_ddr_get_rtt(void) -{ - int rtt; - -#if defined(CONFIG_FSL_DDR1) - rtt = 0; -#elif defined(CONFIG_FSL_DDR2) - rtt = 3; -#else - rtt = 0; -#endif - - return rtt; -} - -/* - * compute the CAS write latency according to DDR3 spec - * CWL = 5 if tCK >= 2.5ns - * 6 if 2.5ns > tCK >= 1.875ns - * 7 if 1.875ns > tCK >= 1.5ns - * 8 if 1.5ns > tCK >= 1.25ns - */ -static inline unsigned int compute_cas_write_latency(void) -{ - unsigned int cwl; - const unsigned int mclk_ps = get_memory_clk_period_ps(); - - if (mclk_ps >= 2500) - cwl = 5; - else if (mclk_ps >= 1875) - cwl = 6; - else if (mclk_ps >= 1500) - cwl = 7; - else if (mclk_ps >= 1250) - cwl = 8; - else - cwl = 8; - return cwl; -} - -/* Chip Select Configuration (CSn_CONFIG) */ -static void set_csn_config(int i, fsl_ddr_cfg_regs_t *ddr, - const memctl_options_t *popts, - const dimm_params_t *dimm_params) -{ - unsigned int cs_n_en = 0; /* Chip Select enable */ - unsigned int intlv_en = 0; /* Memory controller interleave enable */ - unsigned int intlv_ctl = 0; /* Interleaving control */ - unsigned int ap_n_en = 0; /* Chip select n auto-precharge enable */ - unsigned int odt_rd_cfg = 0; /* ODT for reads configuration */ - unsigned int odt_wr_cfg = 0; /* ODT for writes configuration */ - unsigned int ba_bits_cs_n = 0; /* Num of bank bits for SDRAM on CSn */ - unsigned int row_bits_cs_n = 0; /* Num of row bits for SDRAM on CSn */ - unsigned int col_bits_cs_n = 0; /* Num of ocl bits for SDRAM on CSn */ - - /* Compute CS_CONFIG only for existing ranks of each DIMM. */ - if ((((i&1) == 0) - && (dimm_params[i/2].n_ranks == 1)) - || (dimm_params[i/2].n_ranks == 2)) { - unsigned int n_banks_per_sdram_device; - cs_n_en = 1; - if (i == 0) { - /* These fields only available in CS0_CONFIG */ - intlv_en = popts->memctl_interleaving; - intlv_ctl = popts->memctl_interleaving_mode; - } - ap_n_en = popts->cs_local_opts[i].auto_precharge; - odt_rd_cfg = popts->cs_local_opts[i].odt_rd_cfg; - odt_wr_cfg = popts->cs_local_opts[i].odt_wr_cfg; - n_banks_per_sdram_device - = dimm_params[i/2].n_banks_per_sdram_device; - ba_bits_cs_n = __ilog2(n_banks_per_sdram_device) - 2; - row_bits_cs_n = dimm_params[i/2].n_row_addr - 12; - col_bits_cs_n = dimm_params[i/2].n_col_addr - 8; - } - - ddr->cs[i].config = (0 - | ((cs_n_en & 0x1) << 31) - | ((intlv_en & 0x3) << 29) - | ((intlv_ctl & 0xf) << 24) - | ((ap_n_en & 0x1) << 23) - - /* XXX: some implementation only have 1 bit starting at left */ - | ((odt_rd_cfg & 0x7) << 20) - - /* XXX: Some implementation only have 1 bit starting at left */ - | ((odt_wr_cfg & 0x7) << 16) - - | ((ba_bits_cs_n & 0x3) << 14) - | ((row_bits_cs_n & 0x7) << 8) - | ((col_bits_cs_n & 0x7) << 0) - ); - debug("FSLDDR: cs[%d]_config = 0x%08x\n", i,ddr->cs[i].config); -} - -/* Chip Select Configuration 2 (CSn_CONFIG_2) */ -/* FIXME: 8572 */ -static void set_csn_config_2(int i, fsl_ddr_cfg_regs_t *ddr) -{ - unsigned int pasr_cfg = 0; /* Partial array self refresh config */ - - ddr->cs[i].config_2 = ((pasr_cfg & 7) << 24); - debug("FSLDDR: cs[%d]_config_2 = 0x%08x\n", i, ddr->cs[i].config_2); -} - -/* -3E = 667 CL5, -25 = CL6 800, -25E = CL5 800 */ - -#if !defined(CONFIG_FSL_DDR1) -/* - * DDR SDRAM Timing Configuration 0 (TIMING_CFG_0) - * - * Avoid writing for DDR I. The new PQ38 DDR controller - * dreams up non-zero default values to be backwards compatible. - */ -static void set_timing_cfg_0(fsl_ddr_cfg_regs_t *ddr) -{ - unsigned char trwt_mclk = 0; /* Read-to-write turnaround */ - unsigned char twrt_mclk = 0; /* Write-to-read turnaround */ - /* 7.5 ns on -3E; 0 means WL - CL + BL/2 + 1 */ - unsigned char trrt_mclk = 0; /* Read-to-read turnaround */ - unsigned char twwt_mclk = 0; /* Write-to-write turnaround */ - - /* Active powerdown exit timing (tXARD and tXARDS). */ - unsigned char act_pd_exit_mclk; - /* Precharge powerdown exit timing (tXP). */ - unsigned char pre_pd_exit_mclk; - /* Precharge powerdown exit timing (tAXPD). */ - unsigned char taxpd_mclk; - /* Mode register set cycle time (tMRD). */ - unsigned char tmrd_mclk; - -#if defined(CONFIG_FSL_DDR3) - /* - * (tXARD and tXARDS). Empirical? - * The DDR3 spec has not tXARD, - * we use the tXP instead of it. - * tXP=max(3nCK, 7.5ns) for DDR3. - * spec has not the tAXPD, we use - * tAXPD=8, need design to confirm. - */ - int tXP = max((get_memory_clk_period_ps() * 3), 7500); /* unit=ps */ - act_pd_exit_mclk = picos_to_mclk(tXP); - /* Mode register MR0[A12] is '1' - fast exit */ - pre_pd_exit_mclk = act_pd_exit_mclk; - taxpd_mclk = 8; - tmrd_mclk = 4; -#else /* CONFIG_FSL_DDR2 */ - /* - * (tXARD and tXARDS). Empirical? - * tXARD = 2 for DDR2 - * tXP=2 - * tAXPD=8 - */ - act_pd_exit_mclk = 2; - pre_pd_exit_mclk = 2; - taxpd_mclk = 8; - tmrd_mclk = 2; -#endif - - ddr->timing_cfg_0 = (0 - | ((trwt_mclk & 0x3) << 30) /* RWT */ - | ((twrt_mclk & 0x3) << 28) /* WRT */ - | ((trrt_mclk & 0x3) << 26) /* RRT */ - | ((twwt_mclk & 0x3) << 24) /* WWT */ - | ((act_pd_exit_mclk & 0x7) << 20) /* ACT_PD_EXIT */ - | ((pre_pd_exit_mclk & 0xF) << 16) /* PRE_PD_EXIT */ - | ((taxpd_mclk & 0xf) << 8) /* ODT_PD_EXIT */ - | ((tmrd_mclk & 0xf) << 0) /* MRS_CYC */ - ); - debug("FSLDDR: timing_cfg_0 = 0x%08x\n", ddr->timing_cfg_0); -} -#endif /* defined(CONFIG_FSL_DDR2) */ - -/* DDR SDRAM Timing Configuration 3 (TIMING_CFG_3) */ -static void set_timing_cfg_3(fsl_ddr_cfg_regs_t *ddr, - const common_timing_params_t *common_dimm, - unsigned int cas_latency) -{ - /* Extended Activate to precharge interval (tRAS) */ - unsigned int ext_acttopre = 0; - unsigned int ext_refrec; /* Extended refresh recovery time (tRFC) */ - unsigned int ext_caslat = 0; /* Extended MCAS latency from READ cmd */ - unsigned int cntl_adj = 0; /* Control Adjust */ - - /* If the tRAS > 19 MCLK, we use the ext mode */ - if (picos_to_mclk(common_dimm->tRAS_ps) > 0x13) - ext_acttopre = 1; - - ext_refrec = (picos_to_mclk(common_dimm->tRFC_ps) - 8) >> 4; - - /* If the CAS latency more than 8, use the ext mode */ - if (cas_latency > 8) - ext_caslat = 1; - - ddr->timing_cfg_3 = (0 - | ((ext_acttopre & 0x1) << 24) - | ((ext_refrec & 0xF) << 16) - | ((ext_caslat & 0x1) << 12) - | ((cntl_adj & 0x7) << 0) - ); - debug("FSLDDR: timing_cfg_3 = 0x%08x\n", ddr->timing_cfg_3); -} - -/* DDR SDRAM Timing Configuration 1 (TIMING_CFG_1) */ -static void set_timing_cfg_1(fsl_ddr_cfg_regs_t *ddr, - const memctl_options_t *popts, - const common_timing_params_t *common_dimm, - unsigned int cas_latency) -{ - /* Precharge-to-activate interval (tRP) */ - unsigned char pretoact_mclk; - /* Activate to precharge interval (tRAS) */ - unsigned char acttopre_mclk; - /* Activate to read/write interval (tRCD) */ - unsigned char acttorw_mclk; - /* CASLAT */ - unsigned char caslat_ctrl; - /* Refresh recovery time (tRFC) ; trfc_low */ - unsigned char refrec_ctrl; - /* Last data to precharge minimum interval (tWR) */ - unsigned char wrrec_mclk; - /* Activate-to-activate interval (tRRD) */ - unsigned char acttoact_mclk; - /* Last write data pair to read command issue interval (tWTR) */ - unsigned char wrtord_mclk; - - pretoact_mclk = picos_to_mclk(common_dimm->tRP_ps); - acttopre_mclk = picos_to_mclk(common_dimm->tRAS_ps); - acttorw_mclk = picos_to_mclk(common_dimm->tRCD_ps); - - /* - * Translate CAS Latency to a DDR controller field value: - * - * CAS Lat DDR I DDR II Ctrl - * Clocks SPD Bit SPD Bit Value - * ------- ------- ------- ----- - * 1.0 0 0001 - * 1.5 1 0010 - * 2.0 2 2 0011 - * 2.5 3 0100 - * 3.0 4 3 0101 - * 3.5 5 0110 - * 4.0 4 0111 - * 4.5 1000 - * 5.0 5 1001 - */ -#if defined(CONFIG_FSL_DDR1) - caslat_ctrl = (cas_latency + 1) & 0x07; -#elif defined(CONFIG_FSL_DDR2) - caslat_ctrl = 2 * cas_latency - 1; -#else - /* - * if the CAS latency more than 8 cycle, - * we need set extend bit for it at - * TIMING_CFG_3[EXT_CASLAT] - */ - if (cas_latency > 8) - cas_latency -= 8; - caslat_ctrl = 2 * cas_latency - 1; -#endif - - refrec_ctrl = picos_to_mclk(common_dimm->tRFC_ps) - 8; - wrrec_mclk = picos_to_mclk(common_dimm->tWR_ps); - if (popts->OTF_burst_chop_en) - wrrec_mclk += 2; - - acttoact_mclk = picos_to_mclk(common_dimm->tRRD_ps); - /* - * JEDEC has min requirement for tRRD - */ -#if defined(CONFIG_FSL_DDR3) - if (acttoact_mclk < 4) - acttoact_mclk = 4; -#endif - wrtord_mclk = picos_to_mclk(common_dimm->tWTR_ps); - /* - * JEDEC has some min requirements for tWTR - */ -#if defined(CONFIG_FSL_DDR2) - if (wrtord_mclk < 2) - wrtord_mclk = 2; -#elif defined(CONFIG_FSL_DDR3) - if (wrtord_mclk < 4) - wrtord_mclk = 4; -#endif - if (popts->OTF_burst_chop_en) - wrtord_mclk += 2; - - ddr->timing_cfg_1 = (0 - | ((pretoact_mclk & 0x0F) << 28) - | ((acttopre_mclk & 0x0F) << 24) - | ((acttorw_mclk & 0xF) << 20) - | ((caslat_ctrl & 0xF) << 16) - | ((refrec_ctrl & 0xF) << 12) - | ((wrrec_mclk & 0x0F) << 8) - | ((acttoact_mclk & 0x07) << 4) - | ((wrtord_mclk & 0x07) << 0) - ); - debug("FSLDDR: timing_cfg_1 = 0x%08x\n", ddr->timing_cfg_1); -} - -/* DDR SDRAM Timing Configuration 2 (TIMING_CFG_2) */ -static void set_timing_cfg_2(fsl_ddr_cfg_regs_t *ddr, - const memctl_options_t *popts, - const common_timing_params_t *common_dimm, - unsigned int cas_latency, - unsigned int additive_latency) -{ - /* Additive latency */ - unsigned char add_lat_mclk; - /* CAS-to-preamble override */ - unsigned short cpo; - /* Write latency */ - unsigned char wr_lat; - /* Read to precharge (tRTP) */ - unsigned char rd_to_pre; - /* Write command to write data strobe timing adjustment */ - unsigned char wr_data_delay; - /* Minimum CKE pulse width (tCKE) */ - unsigned char cke_pls; - /* Window for four activates (tFAW) */ - unsigned short four_act; - - /* FIXME add check that this must be less than acttorw_mclk */ - add_lat_mclk = additive_latency; - cpo = popts->cpo_override; - -#if defined(CONFIG_FSL_DDR1) - /* - * This is a lie. It should really be 1, but if it is - * set to 1, bits overlap into the old controller's - * otherwise unused ACSM field. If we leave it 0, then - * the HW will magically treat it as 1 for DDR 1. Oh Yea. - */ - wr_lat = 0; -#elif defined(CONFIG_FSL_DDR2) - wr_lat = cas_latency - 1; -#else - wr_lat = compute_cas_write_latency(); -#endif - - rd_to_pre = picos_to_mclk(common_dimm->tRTP_ps); - /* - * JEDEC has some min requirements for tRTP - */ -#if defined(CONFIG_FSL_DDR2) - if (rd_to_pre < 2) - rd_to_pre = 2; -#elif defined(CONFIG_FSL_DDR3) - if (rd_to_pre < 4) - rd_to_pre = 4; -#endif - if (additive_latency) - rd_to_pre += additive_latency; - if (popts->OTF_burst_chop_en) - rd_to_pre += 2; /* according to UM */ - - wr_data_delay = popts->write_data_delay; - cke_pls = picos_to_mclk(popts->tCKE_clock_pulse_width_ps); - four_act = picos_to_mclk(popts->tFAW_window_four_activates_ps); - - ddr->timing_cfg_2 = (0 - | ((add_lat_mclk & 0xf) << 28) - | ((cpo & 0x1f) << 23) - | ((wr_lat & 0xf) << 19) - | ((rd_to_pre & RD_TO_PRE_MASK) << RD_TO_PRE_SHIFT) - | ((wr_data_delay & WR_DATA_DELAY_MASK) << WR_DATA_DELAY_SHIFT) - | ((cke_pls & 0x7) << 6) - | ((four_act & 0x3f) << 0) - ); - debug("FSLDDR: timing_cfg_2 = 0x%08x\n", ddr->timing_cfg_2); -} - -/* DDR SDRAM control configuration (DDR_SDRAM_CFG) */ -static void set_ddr_sdram_cfg(fsl_ddr_cfg_regs_t *ddr, - const memctl_options_t *popts, - const common_timing_params_t *common_dimm) -{ - unsigned int mem_en; /* DDR SDRAM interface logic enable */ - unsigned int sren; /* Self refresh enable (during sleep) */ - unsigned int ecc_en; /* ECC enable. */ - unsigned int rd_en; /* Registered DIMM enable */ - unsigned int sdram_type; /* Type of SDRAM */ - unsigned int dyn_pwr; /* Dynamic power management mode */ - unsigned int dbw; /* DRAM dta bus width */ - unsigned int eight_be = 0; /* 8-beat burst enable, DDR2 is zero */ - unsigned int ncap = 0; /* Non-concurrent auto-precharge */ - unsigned int threeT_en; /* Enable 3T timing */ - unsigned int twoT_en; /* Enable 2T timing */ - unsigned int ba_intlv_ctl; /* Bank (CS) interleaving control */ - unsigned int x32_en = 0; /* x32 enable */ - unsigned int pchb8 = 0; /* precharge bit 8 enable */ - unsigned int hse; /* Global half strength override */ - unsigned int mem_halt = 0; /* memory controller halt */ - unsigned int bi = 0; /* Bypass initialization */ - - mem_en = 1; - sren = popts->self_refresh_in_sleep; - if (common_dimm->all_DIMMs_ECC_capable) { - /* Allow setting of ECC only if all DIMMs are ECC. */ - ecc_en = popts->ECC_mode; - } else { - ecc_en = 0; - } - - rd_en = (common_dimm->all_DIMMs_registered - && !common_dimm->all_DIMMs_unbuffered); - - sdram_type = CONFIG_FSL_SDRAM_TYPE; - - dyn_pwr = popts->dynamic_power; - dbw = popts->data_bus_width; - /* 8-beat burst enable DDR-III case - * we must clear it when use the on-the-fly mode, - * must set it when use the 32-bits bus mode. - */ - if (sdram_type == SDRAM_TYPE_DDR3) { - if (popts->burst_length == DDR_BL8) - eight_be = 1; - if (popts->burst_length == DDR_OTF) - eight_be = 0; - if (dbw == 0x1) - eight_be = 1; - } - - threeT_en = popts->threeT_en; - twoT_en = popts->twoT_en; - ba_intlv_ctl = popts->ba_intlv_ctl; - hse = popts->half_strength_driver_enable; - - ddr->ddr_sdram_cfg = (0 - | ((mem_en & 0x1) << 31) - | ((sren & 0x1) << 30) - | ((ecc_en & 0x1) << 29) - | ((rd_en & 0x1) << 28) - | ((sdram_type & 0x7) << 24) - | ((dyn_pwr & 0x1) << 21) - | ((dbw & 0x3) << 19) - | ((eight_be & 0x1) << 18) - | ((ncap & 0x1) << 17) - | ((threeT_en & 0x1) << 16) - | ((twoT_en & 0x1) << 15) - | ((ba_intlv_ctl & 0x7F) << 8) - | ((x32_en & 0x1) << 5) - | ((pchb8 & 0x1) << 4) - | ((hse & 0x1) << 3) - | ((mem_halt & 0x1) << 1) - | ((bi & 0x1) << 0) - ); - debug("FSLDDR: ddr_sdram_cfg = 0x%08x\n", ddr->ddr_sdram_cfg); -} - -/* DDR SDRAM control configuration 2 (DDR_SDRAM_CFG_2) */ -static void set_ddr_sdram_cfg_2(fsl_ddr_cfg_regs_t *ddr, - const memctl_options_t *popts) -{ - unsigned int frc_sr = 0; /* Force self refresh */ - unsigned int sr_ie = 0; /* Self-refresh interrupt enable */ - unsigned int dll_rst_dis; /* DLL reset disable */ - unsigned int dqs_cfg; /* DQS configuration */ - unsigned int odt_cfg; /* ODT configuration */ - unsigned int num_pr; /* Number of posted refreshes */ - unsigned int obc_cfg; /* On-The-Fly Burst Chop Cfg */ - unsigned int ap_en; /* Address Parity Enable */ - unsigned int d_init; /* DRAM data initialization */ - unsigned int rcw_en = 0; /* Register Control Word Enable */ - unsigned int md_en = 0; /* Mirrored DIMM Enable */ - - dll_rst_dis = 1; /* Make this configurable */ - dqs_cfg = popts->DQS_config; - if (popts->cs_local_opts[0].odt_rd_cfg - || popts->cs_local_opts[0].odt_wr_cfg) { - /* FIXME */ - odt_cfg = 2; - } else { - odt_cfg = 0; - } - - num_pr = 1; /* Make this configurable */ - - /* - * 8572 manual says - * {TIMING_CFG_1[PRETOACT] - * + [DDR_SDRAM_CFG_2[NUM_PR] - * * ({EXT_REFREC || REFREC} + 8 + 2)]} - * << DDR_SDRAM_INTERVAL[REFINT] - */ -#if defined(CONFIG_FSL_DDR3) - obc_cfg = popts->OTF_burst_chop_en; -#else - obc_cfg = 0; -#endif - - ap_en = 0; /* Make this configurable? */ - -#if defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) - /* Use the DDR controller to auto initialize memory. */ - d_init = 1; - ddr->ddr_data_init = CONFIG_MEM_INIT_VALUE; - debug("DDR: ddr_data_init = 0x%08x\n", ddr->ddr_data_init); -#else - /* Memory will be initialized via DMA, or not at all. */ - d_init = 0; -#endif - -#if defined(CONFIG_FSL_DDR3) - md_en = popts->mirrored_dimm; -#endif - ddr->ddr_sdram_cfg_2 = (0 - | ((frc_sr & 0x1) << 31) - | ((sr_ie & 0x1) << 30) - | ((dll_rst_dis & 0x1) << 29) - | ((dqs_cfg & 0x3) << 26) - | ((odt_cfg & 0x3) << 21) - | ((num_pr & 0xf) << 12) - | ((obc_cfg & 0x1) << 6) - | ((ap_en & 0x1) << 5) - | ((d_init & 0x1) << 4) - | ((rcw_en & 0x1) << 2) - | ((md_en & 0x1) << 0) - ); - debug("FSLDDR: ddr_sdram_cfg_2 = 0x%08x\n", ddr->ddr_sdram_cfg_2); -} - -/* DDR SDRAM Mode configuration 2 (DDR_SDRAM_MODE_2) */ -static void set_ddr_sdram_mode_2(fsl_ddr_cfg_regs_t *ddr, - const memctl_options_t *popts) -{ - unsigned short esdmode2 = 0; /* Extended SDRAM mode 2 */ - unsigned short esdmode3 = 0; /* Extended SDRAM mode 3 */ - -#if defined(CONFIG_FSL_DDR3) - unsigned int rtt_wr = 0; /* Rtt_WR - dynamic ODT off */ - unsigned int srt = 0; /* self-refresh temerature, normal range */ - unsigned int asr = 0; /* auto self-refresh disable */ - unsigned int cwl = compute_cas_write_latency() - 5; - unsigned int pasr = 0; /* partial array self refresh disable */ - - if (popts->rtt_override) - rtt_wr = popts->rtt_wr_override_value; - - esdmode2 = (0 - | ((rtt_wr & 0x3) << 9) - | ((srt & 0x1) << 7) - | ((asr & 0x1) << 6) - | ((cwl & 0x7) << 3) - | ((pasr & 0x7) << 0)); -#endif - ddr->ddr_sdram_mode_2 = (0 - | ((esdmode2 & 0xFFFF) << 16) - | ((esdmode3 & 0xFFFF) << 0) - ); - debug("FSLDDR: ddr_sdram_mode_2 = 0x%08x\n", ddr->ddr_sdram_mode_2); -} - -/* DDR SDRAM Interval Configuration (DDR_SDRAM_INTERVAL) */ -static void set_ddr_sdram_interval(fsl_ddr_cfg_regs_t *ddr, - const memctl_options_t *popts, - const common_timing_params_t *common_dimm) -{ - unsigned int refint; /* Refresh interval */ - unsigned int bstopre; /* Precharge interval */ - - refint = picos_to_mclk(common_dimm->refresh_rate_ps); - - bstopre = popts->bstopre; - - /* refint field used 0x3FFF in earlier controllers */ - ddr->ddr_sdram_interval = (0 - | ((refint & 0xFFFF) << 16) - | ((bstopre & 0x3FFF) << 0) - ); - debug("FSLDDR: ddr_sdram_interval = 0x%08x\n", ddr->ddr_sdram_interval); -} - -#if defined(CONFIG_FSL_DDR3) -/* DDR SDRAM Mode configuration set (DDR_SDRAM_MODE) */ -static void set_ddr_sdram_mode(fsl_ddr_cfg_regs_t *ddr, - const memctl_options_t *popts, - const common_timing_params_t *common_dimm, - unsigned int cas_latency, - unsigned int additive_latency) -{ - unsigned short esdmode; /* Extended SDRAM mode */ - unsigned short sdmode; /* SDRAM mode */ - - /* Mode Register - MR1 */ - unsigned int qoff = 0; /* Output buffer enable 0=yes, 1=no */ - unsigned int tdqs_en = 0; /* TDQS Enable: 0=no, 1=yes */ - unsigned int rtt; - unsigned int wrlvl_en = 0; /* Write level enable: 0=no, 1=yes */ - unsigned int al = 0; /* Posted CAS# additive latency (AL) */ - unsigned int dic = 1; /* Output driver impedance, 34ohm */ - unsigned int dll_en = 0; /* DLL Enable 0=Enable (Normal), - 1=Disable (Test/Debug) */ - - /* Mode Register - MR0 */ - unsigned int dll_on; /* DLL control for precharge PD, 0=off, 1=on */ - unsigned int wr; /* Write Recovery */ - unsigned int dll_rst; /* DLL Reset */ - unsigned int mode; /* Normal=0 or Test=1 */ - unsigned int caslat = 4;/* CAS# latency, default set as 6 cycles */ - /* BT: Burst Type (0=Nibble Sequential, 1=Interleaved) */ - unsigned int bt; - unsigned int bl; /* BL: Burst Length */ - - unsigned int wr_mclk; - - const unsigned int mclk_ps = get_memory_clk_period_ps(); - - rtt = fsl_ddr_get_rtt(); - if (popts->rtt_override) - rtt = popts->rtt_override_value; - - if (additive_latency == (cas_latency - 1)) - al = 1; - if (additive_latency == (cas_latency - 2)) - al = 2; - - /* - * The esdmode value will also be used for writing - * MR1 during write leveling for DDR3, although the - * bits specifically related to the write leveling - * scheme will be handled automatically by the DDR - * controller. so we set the wrlvl_en = 0 here. - */ - esdmode = (0 - | ((qoff & 0x1) << 12) - | ((tdqs_en & 0x1) << 11) - | ((rtt & 0x4) << 7) /* rtt field is split */ - | ((wrlvl_en & 0x1) << 7) - | ((rtt & 0x2) << 5) /* rtt field is split */ - | ((dic & 0x2) << 4) /* DIC field is split */ - | ((al & 0x3) << 3) - | ((rtt & 0x1) << 2) /* rtt field is split */ - | ((dic & 0x1) << 1) /* DIC field is split */ - | ((dll_en & 0x1) << 0) - ); - - /* - * DLL control for precharge PD - * 0=slow exit DLL off (tXPDLL) - * 1=fast exit DLL on (tXP) - */ - dll_on = 1; - wr_mclk = (common_dimm->tWR_ps + mclk_ps - 1) / mclk_ps; - if (wr_mclk >= 12) - wr = 6; - else if (wr_mclk >= 9) - wr = 5; - else - wr = wr_mclk - 4; - dll_rst = 0; /* dll no reset */ - mode = 0; /* normal mode */ - - /* look up table to get the cas latency bits */ - if (cas_latency >= 5 && cas_latency <= 11) { - unsigned char cas_latency_table[7] = { - 0x2, /* 5 clocks */ - 0x4, /* 6 clocks */ - 0x6, /* 7 clocks */ - 0x8, /* 8 clocks */ - 0xa, /* 9 clocks */ - 0xc, /* 10 clocks */ - 0xe /* 11 clocks */ - }; - caslat = cas_latency_table[cas_latency - 5]; - } - bt = 0; /* Nibble sequential */ - - switch (popts->burst_length) { - case DDR_BL8: - bl = 0; - break; - case DDR_OTF: - bl = 1; - break; - case DDR_BC4: - bl = 2; - break; - default: - printf("Error: invalid burst length of %u specified. " - " Defaulting to on-the-fly BC4 or BL8 beats.\n", - popts->burst_length); - bl = 1; - break; - } - - sdmode = (0 - | ((dll_on & 0x1) << 12) - | ((wr & 0x7) << 9) - | ((dll_rst & 0x1) << 8) - | ((mode & 0x1) << 7) - | (((caslat >> 1) & 0x7) << 4) - | ((bt & 0x1) << 3) - | ((bl & 0x3) << 0) - ); - - ddr->ddr_sdram_mode = (0 - | ((esdmode & 0xFFFF) << 16) - | ((sdmode & 0xFFFF) << 0) - ); - - debug("FSLDDR: ddr_sdram_mode = 0x%08x\n", ddr->ddr_sdram_mode); -} - -#else /* !CONFIG_FSL_DDR3 */ - -/* DDR SDRAM Mode configuration set (DDR_SDRAM_MODE) */ -static void set_ddr_sdram_mode(fsl_ddr_cfg_regs_t *ddr, - const memctl_options_t *popts, - const common_timing_params_t *common_dimm, - unsigned int cas_latency, - unsigned int additive_latency) -{ - unsigned short esdmode; /* Extended SDRAM mode */ - unsigned short sdmode; /* SDRAM mode */ - - /* - * FIXME: This ought to be pre-calculated in a - * technology-specific routine, - * e.g. compute_DDR2_mode_register(), and then the - * sdmode and esdmode passed in as part of common_dimm. - */ - - /* Extended Mode Register */ - unsigned int mrs = 0; /* Mode Register Set */ - unsigned int outputs = 0; /* 0=Enabled, 1=Disabled */ - unsigned int rdqs_en = 0; /* RDQS Enable: 0=no, 1=yes */ - unsigned int dqs_en = 0; /* DQS# Enable: 0=enable, 1=disable */ - unsigned int ocd = 0; /* 0x0=OCD not supported, - 0x7=OCD default state */ - unsigned int rtt; - unsigned int al; /* Posted CAS# additive latency (AL) */ - unsigned int ods = 0; /* Output Drive Strength: - 0 = Full strength (18ohm) - 1 = Reduced strength (4ohm) */ - unsigned int dll_en = 0; /* DLL Enable 0=Enable (Normal), - 1=Disable (Test/Debug) */ - - /* Mode Register (MR) */ - unsigned int mr; /* Mode Register Definition */ - unsigned int pd; /* Power-Down Mode */ - unsigned int wr; /* Write Recovery */ - unsigned int dll_res; /* DLL Reset */ - unsigned int mode; /* Normal=0 or Test=1 */ - unsigned int caslat = 0;/* CAS# latency */ - /* BT: Burst Type (0=Sequential, 1=Interleaved) */ - unsigned int bt; - unsigned int bl; /* BL: Burst Length */ - -#if defined(CONFIG_FSL_DDR2) - const unsigned int mclk_ps = get_memory_clk_period_ps(); -#endif - - rtt = fsl_ddr_get_rtt(); - - al = additive_latency; - - esdmode = (0 - | ((mrs & 0x3) << 14) - | ((outputs & 0x1) << 12) - | ((rdqs_en & 0x1) << 11) - | ((dqs_en & 0x1) << 10) - | ((ocd & 0x7) << 7) - | ((rtt & 0x2) << 5) /* rtt field is split */ - | ((al & 0x7) << 3) - | ((rtt & 0x1) << 2) /* rtt field is split */ - | ((ods & 0x1) << 1) - | ((dll_en & 0x1) << 0) - ); - - mr = 0; /* FIXME: CHECKME */ - - /* - * 0 = Fast Exit (Normal) - * 1 = Slow Exit (Low Power) - */ - pd = 0; - -#if defined(CONFIG_FSL_DDR1) - wr = 0; /* Historical */ -#elif defined(CONFIG_FSL_DDR2) - wr = (common_dimm->tWR_ps + mclk_ps - 1) / mclk_ps - 1; -#endif - dll_res = 0; - mode = 0; - -#if defined(CONFIG_FSL_DDR1) - if (1 <= cas_latency && cas_latency <= 4) { - unsigned char mode_caslat_table[4] = { - 0x5, /* 1.5 clocks */ - 0x2, /* 2.0 clocks */ - 0x6, /* 2.5 clocks */ - 0x3 /* 3.0 clocks */ - }; - caslat = mode_caslat_table[cas_latency - 1]; - } else { - printf("Warning: unknown cas_latency %d\n", cas_latency); - } -#elif defined(CONFIG_FSL_DDR2) - caslat = cas_latency; -#endif - bt = 0; - - switch (popts->burst_length) { - case DDR_BL4: - bl = 2; - break; - case DDR_BL8: - bl = 3; - break; - default: - printf("Error: invalid burst length of %u specified. " - " Defaulting to 4 beats.\n", - popts->burst_length); - bl = 2; - break; - } - - sdmode = (0 - | ((mr & 0x3) << 14) - | ((pd & 0x1) << 12) - | ((wr & 0x7) << 9) - | ((dll_res & 0x1) << 8) - | ((mode & 0x1) << 7) - | ((caslat & 0x7) << 4) - | ((bt & 0x1) << 3) - | ((bl & 0x7) << 0) - ); - - ddr->ddr_sdram_mode = (0 - | ((esdmode & 0xFFFF) << 16) - | ((sdmode & 0xFFFF) << 0) - ); - debug("FSLDDR: ddr_sdram_mode = 0x%08x\n", ddr->ddr_sdram_mode); -} -#endif - -/* DDR SDRAM Data Initialization (DDR_DATA_INIT) */ -static void set_ddr_data_init(fsl_ddr_cfg_regs_t *ddr) -{ - unsigned int init_value; /* Initialization value */ - - init_value = 0xDEADBEEF; - ddr->ddr_data_init = init_value; -} - -/* - * DDR SDRAM Clock Control (DDR_SDRAM_CLK_CNTL) - * The old controller on the 8540/60 doesn't have this register. - * Hope it's OK to set it (to 0) anyway. - */ -static void set_ddr_sdram_clk_cntl(fsl_ddr_cfg_regs_t *ddr, - const memctl_options_t *popts) -{ - unsigned int clk_adjust; /* Clock adjust */ - - clk_adjust = popts->clk_adjust; - ddr->ddr_sdram_clk_cntl = (clk_adjust & 0xF) << 23; -} - -/* DDR Initialization Address (DDR_INIT_ADDR) */ -static void set_ddr_init_addr(fsl_ddr_cfg_regs_t *ddr) -{ - unsigned int init_addr = 0; /* Initialization address */ - - ddr->ddr_init_addr = init_addr; -} - -/* DDR Initialization Address (DDR_INIT_EXT_ADDR) */ -static void set_ddr_init_ext_addr(fsl_ddr_cfg_regs_t *ddr) -{ - unsigned int uia = 0; /* Use initialization address */ - unsigned int init_ext_addr = 0; /* Initialization address */ - - ddr->ddr_init_ext_addr = (0 - | ((uia & 0x1) << 31) - | (init_ext_addr & 0xF) - ); -} - -/* DDR SDRAM Timing Configuration 4 (TIMING_CFG_4) */ -static void set_timing_cfg_4(fsl_ddr_cfg_regs_t *ddr, - const memctl_options_t *popts) -{ - unsigned int rwt = 0; /* Read-to-write turnaround for same CS */ - unsigned int wrt = 0; /* Write-to-read turnaround for same CS */ - unsigned int rrt = 0; /* Read-to-read turnaround for same CS */ - unsigned int wwt = 0; /* Write-to-write turnaround for same CS */ - unsigned int dll_lock = 0; /* DDR SDRAM DLL Lock Time */ - -#if defined(CONFIG_FSL_DDR3) - if (popts->burst_length == DDR_BL8) { - /* We set BL/2 for fixed BL8 */ - rrt = 0; /* BL/2 clocks */ - wwt = 0; /* BL/2 clocks */ - } else { - /* We need to set BL/2 + 2 to BC4 and OTF */ - rrt = 2; /* BL/2 + 2 clocks */ - wwt = 2; /* BL/2 + 2 clocks */ - } - dll_lock = 1; /* tDLLK = 512 clocks from spec */ -#endif - ddr->timing_cfg_4 = (0 - | ((rwt & 0xf) << 28) - | ((wrt & 0xf) << 24) - | ((rrt & 0xf) << 20) - | ((wwt & 0xf) << 16) - | (dll_lock & 0x3) - ); - debug("FSLDDR: timing_cfg_4 = 0x%08x\n", ddr->timing_cfg_4); -} - -/* DDR SDRAM Timing Configuration 5 (TIMING_CFG_5) */ -static void set_timing_cfg_5(fsl_ddr_cfg_regs_t *ddr) -{ - unsigned int rodt_on = 0; /* Read to ODT on */ - unsigned int rodt_off = 0; /* Read to ODT off */ - unsigned int wodt_on = 0; /* Write to ODT on */ - unsigned int wodt_off = 0; /* Write to ODT off */ - -#if defined(CONFIG_FSL_DDR3) - rodt_on = 3; /* 2 clocks */ - rodt_off = 4; /* 4 clocks */ - wodt_on = 2; /* 1 clocks */ - wodt_off = 4; /* 4 clocks */ -#endif - - ddr->timing_cfg_5 = (0 - | ((rodt_on & 0x1f) << 24) - | ((rodt_off & 0x7) << 20) - | ((wodt_on & 0x1f) << 12) - | ((wodt_off & 0x7) << 8) - ); - debug("FSLDDR: timing_cfg_5 = 0x%08x\n", ddr->timing_cfg_5); -} - -/* DDR ZQ Calibration Control (DDR_ZQ_CNTL) */ -static void set_ddr_zq_cntl(fsl_ddr_cfg_regs_t *ddr, unsigned int zq_en) -{ - unsigned int zqinit = 0;/* POR ZQ Calibration Time (tZQinit) */ - /* Normal Operation Full Calibration Time (tZQoper) */ - unsigned int zqoper = 0; - /* Normal Operation Short Calibration Time (tZQCS) */ - unsigned int zqcs = 0; - - if (zq_en) { - zqinit = 9; /* 512 clocks */ - zqoper = 8; /* 256 clocks */ - zqcs = 6; /* 64 clocks */ - } - - ddr->ddr_zq_cntl = (0 - | ((zq_en & 0x1) << 31) - | ((zqinit & 0xF) << 24) - | ((zqoper & 0xF) << 16) - | ((zqcs & 0xF) << 8) - ); -} - -/* DDR Write Leveling Control (DDR_WRLVL_CNTL) */ -static void set_ddr_wrlvl_cntl(fsl_ddr_cfg_regs_t *ddr, unsigned int wrlvl_en, - const memctl_options_t *popts) -{ - /* - * First DQS pulse rising edge after margining mode - * is programmed (tWL_MRD) - */ - unsigned int wrlvl_mrd = 0; - /* ODT delay after margining mode is programmed (tWL_ODTEN) */ - unsigned int wrlvl_odten = 0; - /* DQS/DQS_ delay after margining mode is programmed (tWL_DQSEN) */ - unsigned int wrlvl_dqsen = 0; - /* WRLVL_SMPL: Write leveling sample time */ - unsigned int wrlvl_smpl = 0; - /* WRLVL_WLR: Write leveling repeition time */ - unsigned int wrlvl_wlr = 0; - /* WRLVL_START: Write leveling start time */ - unsigned int wrlvl_start = 0; - - /* suggest enable write leveling for DDR3 due to fly-by topology */ - if (wrlvl_en) { - /* tWL_MRD min = 40 nCK, we set it 64 */ - wrlvl_mrd = 0x6; - /* tWL_ODTEN 128 */ - wrlvl_odten = 0x7; - /* tWL_DQSEN min = 25 nCK, we set it 32 */ - wrlvl_dqsen = 0x5; - /* - * Write leveling sample time at least need 6 clocks - * higher than tWLO to allow enough time for progagation - * delay and sampling the prime data bits. - */ - wrlvl_smpl = 0xf; - /* - * Write leveling repetition time - * at least tWLO + 6 clocks clocks - * we set it 32 - */ - wrlvl_wlr = 0x5; - /* - * Write leveling start time - * The value use for the DQS_ADJUST for the first sample - * when write leveling is enabled. - */ - wrlvl_start = 0x8; - /* - * Override the write leveling sample and start time - * according to specific board - */ - if (popts->wrlvl_override) { - wrlvl_smpl = popts->wrlvl_sample; - wrlvl_start = popts->wrlvl_start; - } - } - - ddr->ddr_wrlvl_cntl = (0 - | ((wrlvl_en & 0x1) << 31) - | ((wrlvl_mrd & 0x7) << 24) - | ((wrlvl_odten & 0x7) << 20) - | ((wrlvl_dqsen & 0x7) << 16) - | ((wrlvl_smpl & 0xf) << 12) - | ((wrlvl_wlr & 0x7) << 8) - | ((wrlvl_start & 0x1F) << 0) - ); -} - -/* DDR Self Refresh Counter (DDR_SR_CNTR) */ -static void set_ddr_sr_cntr(fsl_ddr_cfg_regs_t *ddr, unsigned int sr_it) -{ - /* Self Refresh Idle Threshold */ - ddr->ddr_sr_cntr = (sr_it & 0xF) << 16; -} - -/* DDR SDRAM Register Control Word 1 (DDR_SDRAM_RCW_1) */ -static void set_ddr_sdram_rcw_1(fsl_ddr_cfg_regs_t *ddr) -{ - unsigned int rcw0 = 0; /* RCW0: Register Control Word 0 */ - unsigned int rcw1 = 0; /* RCW1: Register Control Word 1 */ - unsigned int rcw2 = 0; /* RCW2: Register Control Word 2 */ - unsigned int rcw3 = 0; /* RCW3: Register Control Word 3 */ - unsigned int rcw4 = 0; /* RCW4: Register Control Word 4 */ - unsigned int rcw5 = 0; /* RCW5: Register Control Word 5 */ - unsigned int rcw6 = 0; /* RCW6: Register Control Word 6 */ - unsigned int rcw7 = 0; /* RCW7: Register Control Word 7 */ - - ddr->ddr_sdram_rcw_1 = (0 - | ((rcw0 & 0xF) << 28) - | ((rcw1 & 0xF) << 24) - | ((rcw2 & 0xF) << 20) - | ((rcw3 & 0xF) << 16) - | ((rcw4 & 0xF) << 12) - | ((rcw5 & 0xF) << 8) - | ((rcw6 & 0xF) << 4) - | ((rcw7 & 0xF) << 0) - ); -} - -/* DDR SDRAM Register Control Word 2 (DDR_SDRAM_RCW_2) */ -static void set_ddr_sdram_rcw_2(fsl_ddr_cfg_regs_t *ddr) -{ - unsigned int rcw8 = 0; /* RCW0: Register Control Word 8 */ - unsigned int rcw9 = 0; /* RCW1: Register Control Word 9 */ - unsigned int rcw10 = 0; /* RCW2: Register Control Word 10 */ - unsigned int rcw11 = 0; /* RCW3: Register Control Word 11 */ - unsigned int rcw12 = 0; /* RCW4: Register Control Word 12 */ - unsigned int rcw13 = 0; /* RCW5: Register Control Word 13 */ - unsigned int rcw14 = 0; /* RCW6: Register Control Word 14 */ - unsigned int rcw15 = 0; /* RCW7: Register Control Word 15 */ - - ddr->ddr_sdram_rcw_2 = (0 - | ((rcw8 & 0xF) << 28) - | ((rcw9 & 0xF) << 24) - | ((rcw10 & 0xF) << 20) - | ((rcw11 & 0xF) << 16) - | ((rcw12 & 0xF) << 12) - | ((rcw13 & 0xF) << 8) - | ((rcw14 & 0xF) << 4) - | ((rcw15 & 0xF) << 0) - ); -} - -unsigned int -check_fsl_memctl_config_regs(const fsl_ddr_cfg_regs_t *ddr) -{ - unsigned int res = 0; - - /* - * Check that DDR_SDRAM_CFG[RD_EN] and DDR_SDRAM_CFG[2T_EN] are - * not set at the same time. - */ - if (ddr->ddr_sdram_cfg & 0x10000000 - && ddr->ddr_sdram_cfg & 0x00008000) { - printf("Error: DDR_SDRAM_CFG[RD_EN] and DDR_SDRAM_CFG[2T_EN] " - " should not be set at the same time.\n"); - res++; - } - - return res; -} - -unsigned int -compute_fsl_memctl_config_regs(const memctl_options_t *popts, - fsl_ddr_cfg_regs_t *ddr, - const common_timing_params_t *common_dimm, - const dimm_params_t *dimm_params, - unsigned int dbw_cap_adj) -{ - unsigned int i; - unsigned int cas_latency; - unsigned int additive_latency; - unsigned int sr_it; - unsigned int zq_en; - unsigned int wrlvl_en; - - memset(ddr, 0, sizeof(fsl_ddr_cfg_regs_t)); - - if (common_dimm == NULL) { - printf("Error: subset DIMM params struct null pointer\n"); - return 1; - } - - /* - * Process overrides first. - * - * FIXME: somehow add dereated caslat to this - */ - cas_latency = (popts->cas_latency_override) - ? popts->cas_latency_override_value - : common_dimm->lowest_common_SPD_caslat; - - additive_latency = (popts->additive_latency_override) - ? popts->additive_latency_override_value - : common_dimm->additive_latency; - - sr_it = (popts->auto_self_refresh_en) - ? popts->sr_it - : 0; - /* ZQ calibration */ - zq_en = (popts->zq_en) ? 1 : 0; - /* write leveling */ - wrlvl_en = (popts->wrlvl_en) ? 1 : 0; - - /* Chip Select Memory Bounds (CSn_BNDS) */ - for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { - unsigned long long ea = 0, sa = 0; - - if (popts->ba_intlv_ctl && (i > 0) && - ((popts->ba_intlv_ctl & 0x60) != FSL_DDR_CS2_CS3 )) { - /* Don't set up boundaries for other CS - * other than CS0, if bank interleaving - * is enabled and not CS2+CS3 interleaved. - * But we need to set the ODT_RD_CFG and - * ODT_WR_CFG for CS1_CONFIG here. - */ - set_csn_config(i, ddr, popts, dimm_params); - break; - } - - if (dimm_params[i/2].n_ranks == 0) { - debug("Skipping setup of CS%u " - "because n_ranks on DIMM %u is 0\n", i, i/2); - continue; - } - if (popts->memctl_interleaving && popts->ba_intlv_ctl) { - /* - * This works superbank 2CS - * There are 2 memory controllers configured - * identically, memory is interleaved between them, - * and each controller uses rank interleaving within - * itself. Therefore the starting and ending address - * on each controller is twice the amount present on - * each controller. - */ - unsigned long long rank_density - = dimm_params[0].capacity; - ea = (2 * (rank_density >> dbw_cap_adj)) - 1; - } - else if (!popts->memctl_interleaving && popts->ba_intlv_ctl) { - /* - * If memory interleaving between controllers is NOT - * enabled, the starting address for each memory - * controller is distinct. However, because rank - * interleaving is enabled, the starting and ending - * addresses of the total memory on that memory - * controller needs to be programmed into its - * respective CS0_BNDS. - */ - unsigned long long rank_density - = dimm_params[i/2].rank_density; - switch (popts->ba_intlv_ctl & FSL_DDR_CS0_CS1_CS2_CS3) { - case FSL_DDR_CS0_CS1_CS2_CS3: - /* CS0+CS1+CS2+CS3 interleaving, only CS0_CNDS - * needs to be set. - */ - sa = common_dimm->base_address; - ea = sa + (4 * (rank_density >> dbw_cap_adj))-1; - break; - case FSL_DDR_CS0_CS1_AND_CS2_CS3: - /* CS0+CS1 and CS2+CS3 interleaving, CS0_CNDS - * and CS2_CNDS need to be set. - */ - if (!(i&1)) { - sa = dimm_params[i/2].base_address; - ea = sa + (i * (rank_density >> - dbw_cap_adj)) - 1; - } - break; - case FSL_DDR_CS0_CS1: - /* CS0+CS1 interleaving, CS0_CNDS needs - * to be set - */ - sa = common_dimm->base_address; - ea = sa + (2 * (rank_density >> dbw_cap_adj))-1; - break; - case FSL_DDR_CS2_CS3: - /* CS2+CS3 interleaving*/ - if (i == 2) { - sa = dimm_params[i/2].base_address; - ea = sa + (2 * (rank_density >> - dbw_cap_adj)) - 1; - } - break; - default: /* No bank(chip-select) interleaving */ - break; - } - } - else if (popts->memctl_interleaving && !popts->ba_intlv_ctl) { - /* - * Only the rank on CS0 of each memory controller may - * be used if memory controller interleaving is used - * without rank interleaving within each memory - * controller. However, the ending address programmed - * into each CS0 must be the sum of the amount of - * memory in the two CS0 ranks. - */ - if (i == 0) { - unsigned long long rank_density - = dimm_params[0].rank_density; - ea = (2 * (rank_density >> dbw_cap_adj)) - 1; - } - - } - else if (!popts->memctl_interleaving && !popts->ba_intlv_ctl) { - /* - * No rank interleaving and no memory controller - * interleaving. - */ - unsigned long long rank_density - = dimm_params[i/2].rank_density; - sa = dimm_params[i/2].base_address; - ea = sa + (rank_density >> dbw_cap_adj) - 1; - if (i&1) { - if ((dimm_params[i/2].n_ranks == 1)) { - /* Odd chip select, single-rank dimm */ - sa = 0; - ea = 0; - } else { - /* Odd chip select, dual-rank DIMM */ - sa += rank_density >> dbw_cap_adj; - ea += rank_density >> dbw_cap_adj; - } - } - } - - sa >>= 24; - ea >>= 24; - - ddr->cs[i].bnds = (0 - | ((sa & 0xFFF) << 16) /* starting address MSB */ - | ((ea & 0xFFF) << 0) /* ending address MSB */ - ); - - debug("FSLDDR: cs[%d]_bnds = 0x%08x\n", i, ddr->cs[i].bnds); - set_csn_config(i, ddr, popts, dimm_params); - set_csn_config_2(i, ddr); - } - -#if !defined(CONFIG_FSL_DDR1) - set_timing_cfg_0(ddr); -#endif - - set_timing_cfg_3(ddr, common_dimm, cas_latency); - set_timing_cfg_1(ddr, popts, common_dimm, cas_latency); - set_timing_cfg_2(ddr, popts, common_dimm, - cas_latency, additive_latency); - - set_ddr_sdram_cfg(ddr, popts, common_dimm); - - set_ddr_sdram_cfg_2(ddr, popts); - set_ddr_sdram_mode(ddr, popts, common_dimm, - cas_latency, additive_latency); - set_ddr_sdram_mode_2(ddr, popts); - set_ddr_sdram_interval(ddr, popts, common_dimm); - set_ddr_data_init(ddr); - set_ddr_sdram_clk_cntl(ddr, popts); - set_ddr_init_addr(ddr); - set_ddr_init_ext_addr(ddr); - set_timing_cfg_4(ddr, popts); - set_timing_cfg_5(ddr); - - set_ddr_zq_cntl(ddr, zq_en); - set_ddr_wrlvl_cntl(ddr, wrlvl_en, popts); - - set_ddr_sr_cntr(ddr, sr_it); - - set_ddr_sdram_rcw_1(ddr); - set_ddr_sdram_rcw_2(ddr); - - return check_fsl_memctl_config_regs(ddr); -} diff --git a/arch/ppc/cpu/mpc8xxx/ddr/ddr.h b/arch/ppc/cpu/mpc8xxx/ddr/ddr.h deleted file mode 100644 index f122075..0000000 --- a/arch/ppc/cpu/mpc8xxx/ddr/ddr.h +++ /dev/null @@ -1,81 +0,0 @@ -/* - * Copyright 2008 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. - */ - -#ifndef FSL_DDR_MAIN_H -#define FSL_DDR_MAIN_H - -#include <asm/fsl_ddr_sdram.h> -#include <asm/fsl_ddr_dimm_params.h> - -#include "common_timing_params.h" - -/* - * Bind the main DDR setup driver's generic names - * to this specific DDR technology. - */ -static __inline__ int -compute_dimm_parameters(const generic_spd_eeprom_t *spd, - dimm_params_t *pdimm, - unsigned int dimm_number) -{ - return ddr_compute_dimm_parameters(spd, pdimm, dimm_number); -} - -/* - * Data Structures - * - * All data structures have to be on the stack - */ -#define CONFIG_SYS_NUM_DDR_CTLRS CONFIG_NUM_DDR_CONTROLLERS -#define CONFIG_SYS_DIMM_SLOTS_PER_CTLR CONFIG_DIMM_SLOTS_PER_CTLR - -typedef struct { - generic_spd_eeprom_t - spd_installed_dimms[CONFIG_SYS_NUM_DDR_CTLRS][CONFIG_SYS_DIMM_SLOTS_PER_CTLR]; - struct dimm_params_s - dimm_params[CONFIG_SYS_NUM_DDR_CTLRS][CONFIG_SYS_DIMM_SLOTS_PER_CTLR]; - memctl_options_t memctl_opts[CONFIG_SYS_NUM_DDR_CTLRS]; - common_timing_params_t common_timing_params[CONFIG_SYS_NUM_DDR_CTLRS]; - fsl_ddr_cfg_regs_t fsl_ddr_config_reg[CONFIG_SYS_NUM_DDR_CTLRS]; -} fsl_ddr_info_t; - -/* Compute steps */ -#define STEP_GET_SPD (1 << 0) -#define STEP_COMPUTE_DIMM_PARMS (1 << 1) -#define STEP_COMPUTE_COMMON_PARMS (1 << 2) -#define STEP_GATHER_OPTS (1 << 3) -#define STEP_ASSIGN_ADDRESSES (1 << 4) -#define STEP_COMPUTE_REGS (1 << 5) -#define STEP_PROGRAM_REGS (1 << 6) -#define STEP_ALL 0xFFF - -extern unsigned long long -fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step); - -extern const char * step_to_string(unsigned int step); - -extern unsigned int -compute_fsl_memctl_config_regs(const memctl_options_t *popts, - fsl_ddr_cfg_regs_t *ddr, - const common_timing_params_t *common_dimm, - const dimm_params_t *dimm_parameters, - unsigned int dbw_capacity_adjust); -extern unsigned int -compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params, - common_timing_params_t *outpdimm, - unsigned int number_of_dimms); -extern unsigned int populate_memctl_options(int all_DIMMs_registered, - memctl_options_t *popts, - dimm_params_t *pdimm, - unsigned int ctrl_num); - -extern unsigned int mclk_to_picos(unsigned int mclk); -extern unsigned int get_memory_clk_period_ps(void); -extern unsigned int picos_to_mclk(unsigned int picos); - -#endif diff --git a/arch/ppc/cpu/mpc8xxx/ddr/ddr1_dimm_params.c b/arch/ppc/cpu/mpc8xxx/ddr/ddr1_dimm_params.c deleted file mode 100644 index 9184764..0000000 --- a/arch/ppc/cpu/mpc8xxx/ddr/ddr1_dimm_params.c +++ /dev/null @@ -1,343 +0,0 @@ -/* - * Copyright 2008 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 <asm/fsl_ddr_sdram.h> - -#include "ddr.h" - -/* - * Calculate the Density of each Physical Rank. - * Returned size is in bytes. - * - * Study these table from Byte 31 of JEDEC SPD Spec. - * - * DDR I DDR II - * Bit Size Size - * --- ----- ------ - * 7 high 512MB 512MB - * 6 256MB 256MB - * 5 128MB 128MB - * 4 64MB 16GB - * 3 32MB 8GB - * 2 16MB 4GB - * 1 2GB 2GB - * 0 low 1GB 1GB - * - * Reorder Table to be linear by stripping the bottom - * 2 or 5 bits off and shifting them up to the top. - */ - -static unsigned long long -compute_ranksize(unsigned int mem_type, unsigned char row_dens) -{ - unsigned long long bsize; - - /* Bottom 2 bits up to the top. */ - bsize = ((row_dens >> 2) | ((row_dens & 3) << 6)); - bsize <<= 24ULL; - debug("DDR: DDR I rank density = 0x%08x\n", bsize); - - return bsize; -} - -/* - * Convert a two-nibble BCD value into a cycle time. - * While the spec calls for nano-seconds, picos are returned. - * - * This implements the tables for bytes 9, 23 and 25 for both - * DDR I and II. No allowance for distinguishing the invalid - * fields absent for DDR I yet present in DDR II is made. - * (That is, cycle times of .25, .33, .66 and .75 ns are - * allowed for both DDR II and I.) - */ -static unsigned int -convert_bcd_tenths_to_cycle_time_ps(unsigned int spd_val) -{ - /* Table look up the lower nibble, allow DDR I & II. */ - unsigned int tenths_ps[16] = { - 0, - 100, - 200, - 300, - 400, - 500, - 600, - 700, - 800, - 900, - 250, /* This and the next 3 entries valid ... */ - 330, /* ... only for tCK calculations. */ - 660, - 750, - 0, /* undefined */ - 0 /* undefined */ - }; - - unsigned int whole_ns = (spd_val & 0xF0) >> 4; - unsigned int tenth_ns = spd_val & 0x0F; - unsigned int ps = whole_ns * 1000 + tenths_ps[tenth_ns]; - - return ps; -} - -static unsigned int -convert_bcd_hundredths_to_cycle_time_ps(unsigned int spd_val) -{ - unsigned int tenth_ns = (spd_val & 0xF0) >> 4; - unsigned int hundredth_ns = spd_val & 0x0F; - unsigned int ps = tenth_ns * 100 + hundredth_ns * 10; - - return ps; -} - -static unsigned int byte40_table_ps[8] = { - 0, - 250, - 330, - 500, - 660, - 750, - 0, /* supposed to be RFC, but not sure what that means */ - 0 /* Undefined */ -}; - -static unsigned int -compute_trfc_ps_from_spd(unsigned char trctrfc_ext, unsigned char trfc) -{ - unsigned int trfc_ps; - - trfc_ps = (((trctrfc_ext & 0x1) * 256) + trfc) * 1000 - + byte40_table_ps[(trctrfc_ext >> 1) & 0x7]; - - return trfc_ps; -} - -static unsigned int -compute_trc_ps_from_spd(unsigned char trctrfc_ext, unsigned char trc) -{ - unsigned int trc_ps; - - trc_ps = trc * 1000 + byte40_table_ps[(trctrfc_ext >> 4) & 0x7]; - - return trc_ps; -} - -/* - * tCKmax from DDR I SPD Byte 43 - * - * Bits 7:2 == whole ns - * Bits 1:0 == quarter ns - * 00 == 0.00 ns - * 01 == 0.25 ns - * 10 == 0.50 ns - * 11 == 0.75 ns - * - * Returns picoseconds. - */ -static unsigned int -compute_tckmax_from_spd_ps(unsigned int byte43) -{ - return (byte43 >> 2) * 1000 + (byte43 & 0x3) * 250; -} - -/* - * Determine Refresh Rate. Ignore self refresh bit on DDR I. - * Table from SPD Spec, Byte 12, converted to picoseconds and - * filled in with "default" normal values. - */ -static unsigned int -determine_refresh_rate_ps(const unsigned int spd_refresh) -{ - unsigned int refresh_time_ps[8] = { - 15625000, /* 0 Normal 1.00x */ - 3900000, /* 1 Reduced .25x */ - 7800000, /* 2 Extended .50x */ - 31300000, /* 3 Extended 2.00x */ - 62500000, /* 4 Extended 4.00x */ - 125000000, /* 5 Extended 8.00x */ - 15625000, /* 6 Normal 1.00x filler */ - 15625000, /* 7 Normal 1.00x filler */ - }; - - return refresh_time_ps[spd_refresh & 0x7]; -} - -/* - * The purpose of this function is to compute a suitable - * CAS latency given the DRAM clock period. The SPD only - * defines at most 3 CAS latencies. Typically the slower in - * frequency the DIMM runs at, the shorter its CAS latency can be. - * If the DIMM is operating at a sufficiently low frequency, - * it may be able to run at a CAS latency shorter than the - * shortest SPD-defined CAS latency. - * - * If a CAS latency is not found, 0 is returned. - * - * Do this by finding in the standard speed bin table the longest - * tCKmin that doesn't exceed the value of mclk_ps (tCK). - * - * An assumption made is that the SDRAM device allows the - * CL to be programmed for a value that is lower than those - * advertised by the SPD. This is not always the case, - * as those modes not defined in the SPD are optional. - * - * CAS latency de-rating based upon values JEDEC Standard No. 79-E - * Table 11. - * - * ordinal 2, ddr1_speed_bins[1] contains tCK for CL=2 - */ - /* CL2.0 CL2.5 CL3.0 */ -unsigned short ddr1_speed_bins[] = {0, 7500, 6000, 5000 }; - -unsigned int -compute_derated_DDR1_CAS_latency(unsigned int mclk_ps) -{ - const unsigned int num_speed_bins = ARRAY_SIZE(ddr1_speed_bins); - unsigned int lowest_tCKmin_found = 0; - unsigned int lowest_tCKmin_CL = 0; - unsigned int i; - - debug("mclk_ps = %u\n", mclk_ps); - - for (i = 0; i < num_speed_bins; i++) { - unsigned int x = ddr1_speed_bins[i]; - debug("i=%u, x = %u, lowest_tCKmin_found = %u\n", - i, x, lowest_tCKmin_found); - if (x && lowest_tCKmin_found <= x && x <= mclk_ps) { - lowest_tCKmin_found = x; - lowest_tCKmin_CL = i + 1; - } - } - - debug("lowest_tCKmin_CL = %u\n", lowest_tCKmin_CL); - - return lowest_tCKmin_CL; -} - -/* - * ddr_compute_dimm_parameters for DDR1 SPD - * - * Compute DIMM parameters based upon the SPD information in spd. - * Writes the results to the dimm_params_t structure pointed by pdimm. - * - * FIXME: use #define for the retvals - */ -unsigned int -ddr_compute_dimm_parameters(const ddr1_spd_eeprom_t *spd, - dimm_params_t *pdimm, - unsigned int dimm_number) -{ - unsigned int retval; - - if (spd->mem_type) { - if (spd->mem_type != SPD_MEMTYPE_DDR) { - printf("DIMM %u: is not a DDR1 SPD.\n", dimm_number); - return 1; - } - } else { - memset(pdimm, 0, sizeof(dimm_params_t)); - return 1; - } - - retval = ddr1_spd_check(spd); - if (retval) { - printf("DIMM %u: failed checksum\n", dimm_number); - return 2; - } - - /* - * The part name in ASCII in the SPD EEPROM is not null terminated. - * Guarantee null termination here by presetting all bytes to 0 - * and copying the part name in ASCII from the SPD onto it - */ - memset(pdimm->mpart, 0, sizeof(pdimm->mpart)); - memcpy(pdimm->mpart, spd->mpart, sizeof(pdimm->mpart) - 1); - - /* DIMM organization parameters */ - pdimm->n_ranks = spd->nrows; - pdimm->rank_density = compute_ranksize(spd->mem_type, spd->bank_dens); - pdimm->capacity = pdimm->n_ranks * pdimm->rank_density; - pdimm->data_width = spd->dataw_lsb; - pdimm->primary_sdram_width = spd->primw; - pdimm->ec_sdram_width = spd->ecw; - - /* - * FIXME: Need to determine registered_dimm status. - * 1 == register buffered - * 0 == unbuffered - */ - pdimm->registered_dimm = 0; /* unbuffered */ - - /* SDRAM device parameters */ - pdimm->n_row_addr = spd->nrow_addr; - pdimm->n_col_addr = spd->ncol_addr; - pdimm->n_banks_per_sdram_device = spd->nbanks; - pdimm->edc_config = spd->config; - pdimm->burst_lengths_bitmask = spd->burstl; - pdimm->row_density = spd->bank_dens; - - /* - * Calculate the Maximum Data Rate based on the Minimum Cycle time. - * The SPD clk_cycle field (tCKmin) is measured in tenths of - * nanoseconds and represented as BCD. - */ - pdimm->tCKmin_X_ps - = convert_bcd_tenths_to_cycle_time_ps(spd->clk_cycle); - pdimm->tCKmin_X_minus_1_ps - = convert_bcd_tenths_to_cycle_time_ps(spd->clk_cycle2); - pdimm->tCKmin_X_minus_2_ps - = convert_bcd_tenths_to_cycle_time_ps(spd->clk_cycle3); - - pdimm->tCKmax_ps = compute_tckmax_from_spd_ps(spd->tckmax); - - /* - * Compute CAS latencies defined by SPD - * The SPD caslat_X should have at least 1 and at most 3 bits set. - * - * If cas_lat after masking is 0, the __ilog2 function returns - * 255 into the variable. This behavior is abused once. - */ - pdimm->caslat_X = __ilog2(spd->cas_lat); - pdimm->caslat_X_minus_1 = __ilog2(spd->cas_lat - & ~(1 << pdimm->caslat_X)); - pdimm->caslat_X_minus_2 = __ilog2(spd->cas_lat - & ~(1 << pdimm->caslat_X) - & ~(1 << pdimm->caslat_X_minus_1)); - - /* Compute CAS latencies below that defined by SPD */ - pdimm->caslat_lowest_derated - = compute_derated_DDR1_CAS_latency(get_memory_clk_period_ps()); - - /* Compute timing parameters */ - pdimm->tRCD_ps = spd->trcd * 250; - pdimm->tRP_ps = spd->trp * 250; - pdimm->tRAS_ps = spd->tras * 1000; - - pdimm->tWR_ps = mclk_to_picos(3); - pdimm->tWTR_ps = mclk_to_picos(1); - pdimm->tRFC_ps = compute_trfc_ps_from_spd(0, spd->trfc); - - pdimm->tRRD_ps = spd->trrd * 250; - pdimm->tRC_ps = compute_trc_ps_from_spd(0, spd->trc); - - pdimm->refresh_rate_ps = determine_refresh_rate_ps(spd->refresh); - - pdimm->tIS_ps = convert_bcd_hundredths_to_cycle_time_ps(spd->ca_setup); - pdimm->tIH_ps = convert_bcd_hundredths_to_cycle_time_ps(spd->ca_hold); - pdimm->tDS_ps - = convert_bcd_hundredths_to_cycle_time_ps(spd->data_setup); - pdimm->tDH_ps - = convert_bcd_hundredths_to_cycle_time_ps(spd->data_hold); - - pdimm->tRTP_ps = mclk_to_picos(2); /* By the book. */ - pdimm->tDQSQ_max_ps = spd->tdqsq * 10; - pdimm->tQHS_ps = spd->tqhs * 10; - - return 0; -} diff --git a/arch/ppc/cpu/mpc8xxx/ddr/ddr2_dimm_params.c b/arch/ppc/cpu/mpc8xxx/ddr/ddr2_dimm_params.c deleted file mode 100644 index d9d0fa7..0000000 --- a/arch/ppc/cpu/mpc8xxx/ddr/ddr2_dimm_params.c +++ /dev/null @@ -1,339 +0,0 @@ -/* - * Copyright 2008 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 <asm/fsl_ddr_sdram.h> - -#include "ddr.h" -/* - * Calculate the Density of each Physical Rank. - * Returned size is in bytes. - * - * Study these table from Byte 31 of JEDEC SPD Spec. - * - * DDR I DDR II - * Bit Size Size - * --- ----- ------ - * 7 high 512MB 512MB - * 6 256MB 256MB - * 5 128MB 128MB - * 4 64MB 16GB - * 3 32MB 8GB - * 2 16MB 4GB - * 1 2GB 2GB - * 0 low 1GB 1GB - * - * Reorder Table to be linear by stripping the bottom - * 2 or 5 bits off and shifting them up to the top. - * - */ -static unsigned long long -compute_ranksize(unsigned int mem_type, unsigned char row_dens) -{ - unsigned long long bsize; - - /* Bottom 5 bits up to the top. */ - bsize = ((row_dens >> 5) | ((row_dens & 31) << 3)); - bsize <<= 27ULL; - debug("DDR: DDR II rank density = 0x%08x\n", bsize); - - return bsize; -} - -/* - * Convert a two-nibble BCD value into a cycle time. - * While the spec calls for nano-seconds, picos are returned. - * - * This implements the tables for bytes 9, 23 and 25 for both - * DDR I and II. No allowance for distinguishing the invalid - * fields absent for DDR I yet present in DDR II is made. - * (That is, cycle times of .25, .33, .66 and .75 ns are - * allowed for both DDR II and I.) - */ -static unsigned int -convert_bcd_tenths_to_cycle_time_ps(unsigned int spd_val) -{ - /* Table look up the lower nibble, allow DDR I & II. */ - unsigned int tenths_ps[16] = { - 0, - 100, - 200, - 300, - 400, - 500, - 600, - 700, - 800, - 900, - 250, /* This and the next 3 entries valid ... */ - 330, /* ... only for tCK calculations. */ - 660, - 750, - 0, /* undefined */ - 0 /* undefined */ - }; - - unsigned int whole_ns = (spd_val & 0xF0) >> 4; - unsigned int tenth_ns = spd_val & 0x0F; - unsigned int ps = whole_ns * 1000 + tenths_ps[tenth_ns]; - - return ps; -} - -static unsigned int -convert_bcd_hundredths_to_cycle_time_ps(unsigned int spd_val) -{ - unsigned int tenth_ns = (spd_val & 0xF0) >> 4; - unsigned int hundredth_ns = spd_val & 0x0F; - unsigned int ps = tenth_ns * 100 + hundredth_ns * 10; - - return ps; -} - -static unsigned int byte40_table_ps[8] = { - 0, - 250, - 330, - 500, - 660, - 750, - 0, /* supposed to be RFC, but not sure what that means */ - 0 /* Undefined */ -}; - -static unsigned int -compute_trfc_ps_from_spd(unsigned char trctrfc_ext, unsigned char trfc) -{ - unsigned int trfc_ps; - - trfc_ps = (((trctrfc_ext & 0x1) * 256) + trfc) * 1000 - + byte40_table_ps[(trctrfc_ext >> 1) & 0x7]; - - return trfc_ps; -} - -static unsigned int -compute_trc_ps_from_spd(unsigned char trctrfc_ext, unsigned char trc) -{ - unsigned int trc_ps; - - trc_ps = trc * 1000 + byte40_table_ps[(trctrfc_ext >> 4) & 0x7]; - - return trc_ps; -} - -/* - * Determine Refresh Rate. Ignore self refresh bit on DDR I. - * Table from SPD Spec, Byte 12, converted to picoseconds and - * filled in with "default" normal values. - */ -static unsigned int -determine_refresh_rate_ps(const unsigned int spd_refresh) -{ - unsigned int refresh_time_ps[8] = { - 15625000, /* 0 Normal 1.00x */ - 3900000, /* 1 Reduced .25x */ - 7800000, /* 2 Extended .50x */ - 31300000, /* 3 Extended 2.00x */ - 62500000, /* 4 Extended 4.00x */ - 125000000, /* 5 Extended 8.00x */ - 15625000, /* 6 Normal 1.00x filler */ - 15625000, /* 7 Normal 1.00x filler */ - }; - - return refresh_time_ps[spd_refresh & 0x7]; -} - -/* - * The purpose of this function is to compute a suitable - * CAS latency given the DRAM clock period. The SPD only - * defines at most 3 CAS latencies. Typically the slower in - * frequency the DIMM runs at, the shorter its CAS latency can. - * be. If the DIMM is operating at a sufficiently low frequency, - * it may be able to run at a CAS latency shorter than the - * shortest SPD-defined CAS latency. - * - * If a CAS latency is not found, 0 is returned. - * - * Do this by finding in the standard speed bin table the longest - * tCKmin that doesn't exceed the value of mclk_ps (tCK). - * - * An assumption made is that the SDRAM device allows the - * CL to be programmed for a value that is lower than those - * advertised by the SPD. This is not always the case, - * as those modes not defined in the SPD are optional. - * - * CAS latency de-rating based upon values JEDEC Standard No. 79-2C - * Table 40, "DDR2 SDRAM stanadard speed bins and tCK, tRCD, tRP, tRAS, - * and tRC for corresponding bin" - * - * ordinal 2, ddr2_speed_bins[1] contains tCK for CL=3 - * Not certain if any good value exists for CL=2 - */ - /* CL2 CL3 CL4 CL5 CL6 */ -unsigned short ddr2_speed_bins[] = { 0, 5000, 3750, 3000, 2500 }; - -unsigned int -compute_derated_DDR2_CAS_latency(unsigned int mclk_ps) -{ - const unsigned int num_speed_bins = ARRAY_SIZE(ddr2_speed_bins); - unsigned int lowest_tCKmin_found = 0; - unsigned int lowest_tCKmin_CL = 0; - unsigned int i; - - debug("mclk_ps = %u\n", mclk_ps); - - for (i = 0; i < num_speed_bins; i++) { - unsigned int x = ddr2_speed_bins[i]; - debug("i=%u, x = %u, lowest_tCKmin_found = %u\n", - i, x, lowest_tCKmin_found); - if (x && x <= mclk_ps && x >= lowest_tCKmin_found ) { - lowest_tCKmin_found = x; - lowest_tCKmin_CL = i + 2; - } - } - - debug("lowest_tCKmin_CL = %u\n", lowest_tCKmin_CL); - - return lowest_tCKmin_CL; -} - -/* - * ddr_compute_dimm_parameters for DDR2 SPD - * - * Compute DIMM parameters based upon the SPD information in spd. - * Writes the results to the dimm_params_t structure pointed by pdimm. - * - * FIXME: use #define for the retvals - */ -unsigned int -ddr_compute_dimm_parameters(const ddr2_spd_eeprom_t *spd, - dimm_params_t *pdimm, - unsigned int dimm_number) -{ - unsigned int retval; - - if (spd->mem_type) { - if (spd->mem_type != SPD_MEMTYPE_DDR2) { - printf("DIMM %u: is not a DDR2 SPD.\n", dimm_number); - return 1; - } - } else { - memset(pdimm, 0, sizeof(dimm_params_t)); - return 1; - } - - retval = ddr2_spd_check(spd); - if (retval) { - printf("DIMM %u: failed checksum\n", dimm_number); - return 2; - } - - /* - * The part name in ASCII in the SPD EEPROM is not null terminated. - * Guarantee null termination here by presetting all bytes to 0 - * and copying the part name in ASCII from the SPD onto it - */ - memset(pdimm->mpart, 0, sizeof(pdimm->mpart)); - memcpy(pdimm->mpart, spd->mpart, sizeof(pdimm->mpart) - 1); - - /* DIMM organization parameters */ - pdimm->n_ranks = (spd->mod_ranks & 0x7) + 1; - pdimm->rank_density = compute_ranksize(spd->mem_type, spd->rank_dens); - pdimm->capacity = pdimm->n_ranks * pdimm->rank_density; - pdimm->data_width = spd->dataw; - pdimm->primary_sdram_width = spd->primw; - pdimm->ec_sdram_width = spd->ecw; - - /* FIXME: what about registered SO-DIMM? */ - switch (spd->dimm_type) { - case 0x01: /* RDIMM */ - case 0x10: /* Mini-RDIMM */ - pdimm->registered_dimm = 1; /* register buffered */ - break; - - case 0x02: /* UDIMM */ - case 0x04: /* SO-DIMM */ - case 0x08: /* Micro-DIMM */ - case 0x20: /* Mini-UDIMM */ - pdimm->registered_dimm = 0; /* unbuffered */ - break; - - default: - printf("unknown dimm_type 0x%02X\n", spd->dimm_type); - return 1; - break; - } - - /* SDRAM device parameters */ - pdimm->n_row_addr = spd->nrow_addr; - pdimm->n_col_addr = spd->ncol_addr; - pdimm->n_banks_per_sdram_device = spd->nbanks; - pdimm->edc_config = spd->config; - pdimm->burst_lengths_bitmask = spd->burstl; - pdimm->row_density = spd->rank_dens; - - /* - * Calculate the Maximum Data Rate based on the Minimum Cycle time. - * The SPD clk_cycle field (tCKmin) is measured in tenths of - * nanoseconds and represented as BCD. - */ - pdimm->tCKmin_X_ps - = convert_bcd_tenths_to_cycle_time_ps(spd->clk_cycle); - pdimm->tCKmin_X_minus_1_ps - = convert_bcd_tenths_to_cycle_time_ps(spd->clk_cycle2); - pdimm->tCKmin_X_minus_2_ps - = convert_bcd_tenths_to_cycle_time_ps(spd->clk_cycle3); - - pdimm->tCKmax_ps = convert_bcd_tenths_to_cycle_time_ps(spd->tckmax); - - /* - * Compute CAS latencies defined by SPD - * The SPD caslat_X should have at least 1 and at most 3 bits set. - * - * If cas_lat after masking is 0, the __ilog2 function returns - * 255 into the variable. This behavior is abused once. - */ - pdimm->caslat_X = __ilog2(spd->cas_lat); - pdimm->caslat_X_minus_1 = __ilog2(spd->cas_lat - & ~(1 << pdimm->caslat_X)); - pdimm->caslat_X_minus_2 = __ilog2(spd->cas_lat - & ~(1 << pdimm->caslat_X) - & ~(1 << pdimm->caslat_X_minus_1)); - - /* Compute CAS latencies below that defined by SPD */ - pdimm->caslat_lowest_derated - = compute_derated_DDR2_CAS_latency(get_memory_clk_period_ps()); - - /* Compute timing parameters */ - pdimm->tRCD_ps = spd->trcd * 250; - pdimm->tRP_ps = spd->trp * 250; - pdimm->tRAS_ps = spd->tras * 1000; - - pdimm->tWR_ps = spd->twr * 250; - pdimm->tWTR_ps = spd->twtr * 250; - pdimm->tRFC_ps = compute_trfc_ps_from_spd(spd->trctrfc_ext, spd->trfc); - - pdimm->tRRD_ps = spd->trrd * 250; - pdimm->tRC_ps = compute_trc_ps_from_spd(spd->trctrfc_ext, spd->trc); - - pdimm->refresh_rate_ps = determine_refresh_rate_ps(spd->refresh); - - pdimm->tIS_ps = convert_bcd_hundredths_to_cycle_time_ps(spd->ca_setup); - pdimm->tIH_ps = convert_bcd_hundredths_to_cycle_time_ps(spd->ca_hold); - pdimm->tDS_ps - = convert_bcd_hundredths_to_cycle_time_ps(spd->data_setup); - pdimm->tDH_ps - = convert_bcd_hundredths_to_cycle_time_ps(spd->data_hold); - - pdimm->tRTP_ps = spd->trtp * 250; - pdimm->tDQSQ_max_ps = spd->tdqsq * 10; - pdimm->tQHS_ps = spd->tqhs * 10; - - return 0; -} diff --git a/arch/ppc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c b/arch/ppc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c deleted file mode 100644 index d4199ba..0000000 --- a/arch/ppc/cpu/mpc8xxx/ddr/ddr3_dimm_params.c +++ /dev/null @@ -1,314 +0,0 @@ -/* - * Copyright 2008-2009 Freescale Semiconductor, Inc. - * Dave Liu <daveliu@freescale.com> - * - * calculate the organization and timing parameter - * from ddr3 spd, please refer to the spec - * JEDEC standard No.21-C 4_01_02_11R18.pdf - * - * 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 <asm/fsl_ddr_sdram.h> - -#include "ddr.h" - -/* - * Calculate the Density of each Physical Rank. - * Returned size is in bytes. - * - * each rank size = - * sdram capacity(bit) / 8 * primary bus width / sdram width - * - * where: sdram capacity = spd byte4[3:0] - * primary bus width = spd byte8[2:0] - * sdram width = spd byte7[2:0] - * - * SPD byte4 - sdram density and banks - * bit[3:0] size(bit) size(byte) - * 0000 256Mb 32MB - * 0001 512Mb 64MB - * 0010 1Gb 128MB - * 0011 2Gb 256MB - * 0100 4Gb 512MB - * 0101 8Gb 1GB - * 0110 16Gb 2GB - * - * SPD byte8 - module memory bus width - * bit[2:0] primary bus width - * 000 8bits - * 001 16bits - * 010 32bits - * 011 64bits - * - * SPD byte7 - module organiztion - * bit[2:0] sdram device width - * 000 4bits - * 001 8bits - * 010 16bits - * 011 32bits - * - */ -static unsigned long long -compute_ranksize(const ddr3_spd_eeprom_t *spd) -{ - unsigned long long bsize; - - int nbit_sdram_cap_bsize = 0; - int nbit_primary_bus_width = 0; - int nbit_sdram_width = 0; - - if ((spd->density_banks & 0xf) < 7) - nbit_sdram_cap_bsize = (spd->density_banks & 0xf) + 28; - if ((spd->bus_width & 0x7) < 4) - nbit_primary_bus_width = (spd->bus_width & 0x7) + 3; - if ((spd->organization & 0x7) < 4) - nbit_sdram_width = (spd->organization & 0x7) + 2; - - bsize = 1ULL << (nbit_sdram_cap_bsize - 3 - + nbit_primary_bus_width - nbit_sdram_width); - - debug("DDR: DDR III rank density = 0x%16lx\n", bsize); - - return bsize; -} - -/* - * ddr_compute_dimm_parameters for DDR3 SPD - * - * Compute DIMM parameters based upon the SPD information in spd. - * Writes the results to the dimm_params_t structure pointed by pdimm. - * - */ -unsigned int -ddr_compute_dimm_parameters(const ddr3_spd_eeprom_t *spd, - dimm_params_t *pdimm, - unsigned int dimm_number) -{ - unsigned int retval; - unsigned int mtb_ps; - - if (spd->mem_type) { - if (spd->mem_type != SPD_MEMTYPE_DDR3) { - printf("DIMM %u: is not a DDR3 SPD.\n", dimm_number); - return 1; - } - } else { - memset(pdimm, 0, sizeof(dimm_params_t)); - return 1; - } - - retval = ddr3_spd_check(spd); - if (retval) { - printf("DIMM %u: failed checksum\n", dimm_number); - return 2; - } - - /* - * The part name in ASCII in the SPD EEPROM is not null terminated. - * Guarantee null termination here by presetting all bytes to 0 - * and copying the part name in ASCII from the SPD onto it - */ - memset(pdimm->mpart, 0, sizeof(pdimm->mpart)); - memcpy(pdimm->mpart, spd->mpart, sizeof(pdimm->mpart) - 1); - - /* DIMM organization parameters */ - pdimm->n_ranks = ((spd->organization >> 3) & 0x7) + 1; - pdimm->rank_density = compute_ranksize(spd); - pdimm->capacity = pdimm->n_ranks * pdimm->rank_density; - pdimm->primary_sdram_width = 1 << (3 + (spd->bus_width & 0x7)); - if ((spd->bus_width >> 3) & 0x3) - pdimm->ec_sdram_width = 8; - else - pdimm->ec_sdram_width = 0; - pdimm->data_width = pdimm->primary_sdram_width - + pdimm->ec_sdram_width; - - switch (spd->module_type & 0xf) { - case 0x01: /* RDIMM */ - case 0x05: /* Mini-RDIMM */ - pdimm->registered_dimm = 1; /* register buffered */ - break; - - case 0x02: /* UDIMM */ - case 0x03: /* SO-DIMM */ - case 0x04: /* Micro-DIMM */ - case 0x06: /* Mini-UDIMM */ - pdimm->registered_dimm = 0; /* unbuffered */ - break; - - default: - printf("unknown dimm_type 0x%02X\n", spd->module_type); - return 1; - } - - /* SDRAM device parameters */ - pdimm->n_row_addr = ((spd->addressing >> 3) & 0x7) + 12; - pdimm->n_col_addr = (spd->addressing & 0x7) + 9; - pdimm->n_banks_per_sdram_device = 8 << ((spd->density_banks >> 4) & 0x7); - - /* - * The SPD spec has not the ECC bit, - * We consider the DIMM as ECC capability - * when the extension bus exist - */ - if (pdimm->ec_sdram_width) - pdimm->edc_config = 0x02; - else - pdimm->edc_config = 0x00; - - /* - * The SPD spec has not the burst length byte - * but DDR3 spec has nature BL8 and BC4, - * BL8 -bit3, BC4 -bit2 - */ - pdimm->burst_lengths_bitmask = 0x0c; - pdimm->row_density = __ilog2(pdimm->rank_density); - - /* MTB - medium timebase - * The unit in the SPD spec is ns, - * We convert it to ps. - * eg: MTB = 0.125ns (125ps) - */ - mtb_ps = (spd->mtb_dividend * 1000) /spd->mtb_divisor; - pdimm->mtb_ps = mtb_ps; - - /* - * sdram minimum cycle time - * we assume the MTB is 0.125ns - * eg: - * tCK_min=15 MTB (1.875ns) ->DDR3-1066 - * =12 MTB (1.5ns) ->DDR3-1333 - * =10 MTB (1.25ns) ->DDR3-1600 - */ - pdimm->tCKmin_X_ps = spd->tCK_min * mtb_ps; - - /* - * CAS latency supported - * bit4 - CL4 - * bit5 - CL5 - * bit18 - CL18 - */ - pdimm->caslat_X = ((spd->caslat_msb << 8) | spd->caslat_lsb) << 4; - - /* - * min CAS latency time - * eg: tAA_min = - * DDR3-800D 100 MTB (12.5ns) - * DDR3-1066F 105 MTB (13.125ns) - * DDR3-1333H 108 MTB (13.5ns) - * DDR3-1600H 90 MTB (11.25ns) - */ - pdimm->tAA_ps = spd->tAA_min * mtb_ps; - - /* - * min write recovery time - * eg: - * tWR_min = 120 MTB (15ns) -> all speed grades. - */ - pdimm->tWR_ps = spd->tWR_min * mtb_ps; - - /* - * min RAS to CAS delay time - * eg: tRCD_min = - * DDR3-800 100 MTB (12.5ns) - * DDR3-1066F 105 MTB (13.125ns) - * DDR3-1333H 108 MTB (13.5ns) - * DDR3-1600H 90 MTB (11.25) - */ - pdimm->tRCD_ps = spd->tRCD_min * mtb_ps; - - /* - * min row active to row active delay time - * eg: tRRD_min = - * DDR3-800(1KB page) 80 MTB (10ns) - * DDR3-1333(1KB page) 48 MTB (6ns) - */ - pdimm->tRRD_ps = spd->tRRD_min * mtb_ps; - - /* - * min row precharge delay time - * eg: tRP_min = - * DDR3-800D 100 MTB (12.5ns) - * DDR3-1066F 105 MTB (13.125ns) - * DDR3-1333H 108 MTB (13.5ns) - * DDR3-1600H 90 MTB (11.25ns) - */ - pdimm->tRP_ps = spd->tRP_min * mtb_ps; - - /* min active to precharge delay time - * eg: tRAS_min = - * DDR3-800D 300 MTB (37.5ns) - * DDR3-1066F 300 MTB (37.5ns) - * DDR3-1333H 288 MTB (36ns) - * DDR3-1600H 280 MTB (35ns) - */ - pdimm->tRAS_ps = (((spd->tRAS_tRC_ext & 0xf) << 8) | spd->tRAS_min_lsb) - * mtb_ps; - /* - * min active to actice/refresh delay time - * eg: tRC_min = - * DDR3-800D 400 MTB (50ns) - * DDR3-1066F 405 MTB (50.625ns) - * DDR3-1333H 396 MTB (49.5ns) - * DDR3-1600H 370 MTB (46.25ns) - */ - pdimm->tRC_ps = (((spd->tRAS_tRC_ext & 0xf0) << 4) | spd->tRC_min_lsb) - * mtb_ps; - /* - * min refresh recovery delay time - * eg: tRFC_min = - * 512Mb 720 MTB (90ns) - * 1Gb 880 MTB (110ns) - * 2Gb 1280 MTB (160ns) - */ - pdimm->tRFC_ps = ((spd->tRFC_min_msb << 8) | spd->tRFC_min_lsb) - * mtb_ps; - /* - * min internal write to read command delay time - * eg: tWTR_min = 40 MTB (7.5ns) - all speed bins. - * tWRT is at least 4 mclk independent of operating freq. - */ - pdimm->tWTR_ps = spd->tWTR_min * mtb_ps; - - /* - * min internal read to precharge command delay time - * eg: tRTP_min = 40 MTB (7.5ns) - all speed bins. - * tRTP is at least 4 mclk independent of operating freq. - */ - pdimm->tRTP_ps = spd->tRTP_min * mtb_ps; - - /* - * Average periodic refresh interval - * tREFI = 7.8 us at normal temperature range - * = 3.9 us at ext temperature range - */ - pdimm->refresh_rate_ps = 7800000; - - /* - * min four active window delay time - * eg: tFAW_min = - * DDR3-800(1KB page) 320 MTB (40ns) - * DDR3-1066(1KB page) 300 MTB (37.5ns) - * DDR3-1333(1KB page) 240 MTB (30ns) - * DDR3-1600(1KB page) 240 MTB (30ns) - */ - pdimm->tFAW_ps = (((spd->tFAW_msb & 0xf) << 8) | spd->tFAW_min) - * mtb_ps; - - /* - * We need check the address mirror for unbuffered DIMM - * If SPD indicate the address map mirror, The DDR controller - * need care it. - */ - if ((spd->module_type == SPD_MODULETYPE_UDIMM) || - (spd->module_type == SPD_MODULETYPE_SODIMM) || - (spd->module_type == SPD_MODULETYPE_MICRODIMM) || - (spd->module_type == SPD_MODULETYPE_MINIUDIMM)) - pdimm->mirrored_dimm = spd->mod_section.unbuffered.addr_mapping & 0x1; - - return 0; -} diff --git a/arch/ppc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c b/arch/ppc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c deleted file mode 100644 index e888e3e..0000000 --- a/arch/ppc/cpu/mpc8xxx/ddr/lc_common_dimm_params.c +++ /dev/null @@ -1,468 +0,0 @@ -/* - * Copyright 2008 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 <asm/fsl_ddr_sdram.h> - -#include "ddr.h" - -unsigned int -compute_cas_latency_ddr3(const dimm_params_t *dimm_params, - common_timing_params_t *outpdimm, - unsigned int number_of_dimms) -{ - unsigned int i; - unsigned int tAAmin_ps = 0; - unsigned int tCKmin_X_ps = 0; - unsigned int common_caslat; - unsigned int caslat_actual; - unsigned int retry = 16; - unsigned int tmp; - const unsigned int mclk_ps = get_memory_clk_period_ps(); - - /* compute the common CAS latency supported between slots */ - tmp = dimm_params[0].caslat_X; - for (i = 1; i < number_of_dimms; i++) - tmp &= dimm_params[i].caslat_X; - common_caslat = tmp; - - /* compute the max tAAmin tCKmin between slots */ - for (i = 0; i < number_of_dimms; i++) { - tAAmin_ps = max(tAAmin_ps, dimm_params[i].tAA_ps); - tCKmin_X_ps = max(tCKmin_X_ps, dimm_params[i].tCKmin_X_ps); - } - /* validate if the memory clk is in the range of dimms */ - if (mclk_ps < tCKmin_X_ps) { - printf("The DIMM max tCKmin is %d ps," - "doesn't support the MCLK cycle %d ps\n", - tCKmin_X_ps, mclk_ps); - return 1; - } - /* determine the acutal cas latency */ - caslat_actual = (tAAmin_ps + mclk_ps - 1) / mclk_ps; - /* check if the dimms support the CAS latency */ - while (!(common_caslat & (1 << caslat_actual)) && retry > 0) { - caslat_actual++; - retry--; - } - /* once the caculation of caslat_actual is completed - * we must verify that this CAS latency value does not - * exceed tAAmax, which is 20 ns for all DDR3 speed grades - */ - if (caslat_actual * mclk_ps > 20000) { - printf("The choosen cas latency %d is too large\n", - caslat_actual); - return 1; - } - outpdimm->lowest_common_SPD_caslat = caslat_actual; - - return 0; -} - -/* - * compute_lowest_common_dimm_parameters() - * - * Determine the worst-case DIMM timing parameters from the set of DIMMs - * whose parameters have been computed into the array pointed to - * by dimm_params. - */ -unsigned int -compute_lowest_common_dimm_parameters(const dimm_params_t *dimm_params, - common_timing_params_t *outpdimm, - unsigned int number_of_dimms) -{ - unsigned int i; - - unsigned int tCKmin_X_ps = 0; - unsigned int tCKmax_ps = 0xFFFFFFFF; - unsigned int tCKmax_max_ps = 0; - unsigned int tRCD_ps = 0; - unsigned int tRP_ps = 0; - unsigned int tRAS_ps = 0; - unsigned int tWR_ps = 0; - unsigned int tWTR_ps = 0; - unsigned int tRFC_ps = 0; - unsigned int tRRD_ps = 0; - unsigned int tRC_ps = 0; - unsigned int refresh_rate_ps = 0; - unsigned int tIS_ps = 0; - unsigned int tIH_ps = 0; - unsigned int tDS_ps = 0; - unsigned int tDH_ps = 0; - unsigned int tRTP_ps = 0; - unsigned int tDQSQ_max_ps = 0; - unsigned int tQHS_ps = 0; - - unsigned int temp1, temp2; - unsigned int additive_latency = 0; -#if !defined(CONFIG_FSL_DDR3) - const unsigned int mclk_ps = get_memory_clk_period_ps(); - unsigned int lowest_good_caslat; - unsigned int not_ok; - - debug("using mclk_ps = %u\n", mclk_ps); -#endif - - temp1 = 0; - for (i = 0; i < number_of_dimms; i++) { - /* - * If there are no ranks on this DIMM, - * it probably doesn't exist, so skip it. - */ - if (dimm_params[i].n_ranks == 0) { - temp1++; - continue; - } - - /* - * Find minimum tCKmax_ps to find fastest slow speed, - * i.e., this is the slowest the whole system can go. - */ - tCKmax_ps = min(tCKmax_ps, dimm_params[i].tCKmax_ps); - - /* Either find maximum value to determine slowest - * speed, delay, time, period, etc */ - tCKmin_X_ps = max(tCKmin_X_ps, dimm_params[i].tCKmin_X_ps); - tCKmax_max_ps = max(tCKmax_max_ps, dimm_params[i].tCKmax_ps); - tRCD_ps = max(tRCD_ps, dimm_params[i].tRCD_ps); - tRP_ps = max(tRP_ps, dimm_params[i].tRP_ps); - tRAS_ps = max(tRAS_ps, dimm_params[i].tRAS_ps); - tWR_ps = max(tWR_ps, dimm_params[i].tWR_ps); - tWTR_ps = max(tWTR_ps, dimm_params[i].tWTR_ps); - tRFC_ps = max(tRFC_ps, dimm_params[i].tRFC_ps); - tRRD_ps = max(tRRD_ps, dimm_params[i].tRRD_ps); - tRC_ps = max(tRC_ps, dimm_params[i].tRC_ps); - tIS_ps = max(tIS_ps, dimm_params[i].tIS_ps); - tIH_ps = max(tIH_ps, dimm_params[i].tIH_ps); - tDS_ps = max(tDS_ps, dimm_params[i].tDS_ps); - tDH_ps = max(tDH_ps, dimm_params[i].tDH_ps); - tRTP_ps = max(tRTP_ps, dimm_params[i].tRTP_ps); - tQHS_ps = max(tQHS_ps, dimm_params[i].tQHS_ps); - refresh_rate_ps = max(refresh_rate_ps, - dimm_params[i].refresh_rate_ps); - - /* - * Find maximum tDQSQ_max_ps to find slowest. - * - * FIXME: is finding the slowest value the correct - * strategy for this parameter? - */ - tDQSQ_max_ps = max(tDQSQ_max_ps, dimm_params[i].tDQSQ_max_ps); - } - - outpdimm->ndimms_present = number_of_dimms - temp1; - - if (temp1 == number_of_dimms) { - debug("no dimms this memory controller\n"); - return 0; - } - - outpdimm->tCKmin_X_ps = tCKmin_X_ps; - outpdimm->tCKmax_ps = tCKmax_ps; - outpdimm->tCKmax_max_ps = tCKmax_max_ps; - outpdimm->tRCD_ps = tRCD_ps; - outpdimm->tRP_ps = tRP_ps; - outpdimm->tRAS_ps = tRAS_ps; - outpdimm->tWR_ps = tWR_ps; - outpdimm->tWTR_ps = tWTR_ps; - outpdimm->tRFC_ps = tRFC_ps; - outpdimm->tRRD_ps = tRRD_ps; - outpdimm->tRC_ps = tRC_ps; - outpdimm->refresh_rate_ps = refresh_rate_ps; - outpdimm->tIS_ps = tIS_ps; - outpdimm->tIH_ps = tIH_ps; - outpdimm->tDS_ps = tDS_ps; - outpdimm->tDH_ps = tDH_ps; - outpdimm->tRTP_ps = tRTP_ps; - outpdimm->tDQSQ_max_ps = tDQSQ_max_ps; - outpdimm->tQHS_ps = tQHS_ps; - - /* Determine common burst length for all DIMMs. */ - temp1 = 0xff; - for (i = 0; i < number_of_dimms; i++) { - if (dimm_params[i].n_ranks) { - temp1 &= dimm_params[i].burst_lengths_bitmask; - } - } - outpdimm->all_DIMMs_burst_lengths_bitmask = temp1; - - /* Determine if all DIMMs registered buffered. */ - temp1 = temp2 = 0; - for (i = 0; i < number_of_dimms; i++) { - if (dimm_params[i].n_ranks) { - if (dimm_params[i].registered_dimm) - temp1 = 1; - if (!dimm_params[i].registered_dimm) - temp2 = 1; - } - } - - outpdimm->all_DIMMs_registered = 0; - if (temp1 && !temp2) { - outpdimm->all_DIMMs_registered = 1; - } - - outpdimm->all_DIMMs_unbuffered = 0; - if (!temp1 && temp2) { - outpdimm->all_DIMMs_unbuffered = 1; - } - - /* CHECKME: */ - if (!outpdimm->all_DIMMs_registered - && !outpdimm->all_DIMMs_unbuffered) { - printf("ERROR: Mix of registered buffered and unbuffered " - "DIMMs detected!\n"); - } - -#if defined(CONFIG_FSL_DDR3) - if (compute_cas_latency_ddr3(dimm_params, outpdimm, number_of_dimms)) - return 1; -#else - /* - * Compute a CAS latency suitable for all DIMMs - * - * Strategy for SPD-defined latencies: compute only - * CAS latency defined by all DIMMs. - */ - - /* - * Step 1: find CAS latency common to all DIMMs using bitwise - * operation. - */ - temp1 = 0xFF; - for (i = 0; i < number_of_dimms; i++) { - if (dimm_params[i].n_ranks) { - temp2 = 0; - temp2 |= 1 << dimm_params[i].caslat_X; - temp2 |= 1 << dimm_params[i].caslat_X_minus_1; - temp2 |= 1 << dimm_params[i].caslat_X_minus_2; - /* - * FIXME: If there was no entry for X-2 (X-1) in - * the SPD, then caslat_X_minus_2 - * (caslat_X_minus_1) contains either 255 or - * 0xFFFFFFFF because that's what the glorious - * __ilog2 function returns for an input of 0. - * On 32-bit PowerPC, left shift counts with bit - * 26 set (that the value of 255 or 0xFFFFFFFF - * will have), cause the destination register to - * be 0. That is why this works. - */ - temp1 &= temp2; - } - } - - /* - * Step 2: check each common CAS latency against tCK of each - * DIMM's SPD. - */ - lowest_good_caslat = 0; - temp2 = 0; - while (temp1) { - not_ok = 0; - temp2 = __ilog2(temp1); - debug("checking common caslat = %u\n", temp2); - - /* Check if this CAS latency will work on all DIMMs at tCK. */ - for (i = 0; i < number_of_dimms; i++) { - if (!dimm_params[i].n_ranks) { - continue; - } - if (dimm_params[i].caslat_X == temp2) { - if (mclk_ps >= dimm_params[i].tCKmin_X_ps) { - debug("CL = %u ok on DIMM %u at tCK=%u" - " ps with its tCKmin_X_ps of %u\n", - temp2, i, mclk_ps, - dimm_params[i].tCKmin_X_ps); - continue; - } else { - not_ok++; - } - } - - if (dimm_params[i].caslat_X_minus_1 == temp2) { - unsigned int tCKmin_X_minus_1_ps - = dimm_params[i].tCKmin_X_minus_1_ps; - if (mclk_ps >= tCKmin_X_minus_1_ps) { - debug("CL = %u ok on DIMM %u at " - "tCK=%u ps with its " - "tCKmin_X_minus_1_ps of %u\n", - temp2, i, mclk_ps, - tCKmin_X_minus_1_ps); - continue; - } else { - not_ok++; - } - } - - if (dimm_params[i].caslat_X_minus_2 == temp2) { - unsigned int tCKmin_X_minus_2_ps - = dimm_params[i].tCKmin_X_minus_2_ps; - if (mclk_ps >= tCKmin_X_minus_2_ps) { - debug("CL = %u ok on DIMM %u at " - "tCK=%u ps with its " - "tCKmin_X_minus_2_ps of %u\n", - temp2, i, mclk_ps, - tCKmin_X_minus_2_ps); - continue; - } else { - not_ok++; - } - } - } - - if (!not_ok) { - lowest_good_caslat = temp2; - } - - temp1 &= ~(1 << temp2); - } - - debug("lowest common SPD-defined CAS latency = %u\n", - lowest_good_caslat); - outpdimm->lowest_common_SPD_caslat = lowest_good_caslat; - - - /* - * Compute a common 'de-rated' CAS latency. - * - * The strategy here is to find the *highest* dereated cas latency - * with the assumption that all of the DIMMs will support a dereated - * CAS latency higher than or equal to their lowest dereated value. - */ - temp1 = 0; - for (i = 0; i < number_of_dimms; i++) { - temp1 = max(temp1, dimm_params[i].caslat_lowest_derated); - } - outpdimm->highest_common_derated_caslat = temp1; - debug("highest common dereated CAS latency = %u\n", temp1); -#endif /* #if defined(CONFIG_FSL_DDR3) */ - - /* Determine if all DIMMs ECC capable. */ - temp1 = 1; - for (i = 0; i < number_of_dimms; i++) { - if (dimm_params[i].n_ranks && dimm_params[i].edc_config != 2) { - temp1 = 0; - break; - } - } - if (temp1) { - debug("all DIMMs ECC capable\n"); - } else { - debug("Warning: not all DIMMs ECC capable, cant enable ECC\n"); - } - outpdimm->all_DIMMs_ECC_capable = temp1; - -#ifndef CONFIG_FSL_DDR3 - /* FIXME: move to somewhere else to validate. */ - if (mclk_ps > tCKmax_max_ps) { - printf("Warning: some of the installed DIMMs " - "can not operate this slowly.\n"); - return 1; - } -#endif - /* - * Compute additive latency. - * - * For DDR1, additive latency should be 0. - * - * For DDR2, with ODT enabled, use "a value" less than ACTTORW, - * which comes from Trcd, and also note that: - * add_lat + caslat must be >= 4 - * - * For DDR3, we use the AL=0 - * - * When to use additive latency for DDR2: - * - * I. Because you are using CL=3 and need to do ODT on writes and - * want functionality. - * 1. Are you going to use ODT? (Does your board not have - * additional termination circuitry for DQ, DQS, DQS_, - * DM, RDQS, RDQS_ for x4/x8 configs?) - * 2. If so, is your lowest supported CL going to be 3? - * 3. If so, then you must set AL=1 because - * - * WL >= 3 for ODT on writes - * RL = AL + CL - * WL = RL - 1 - * -> - * WL = AL + CL - 1 - * AL + CL - 1 >= 3 - * AL + CL >= 4 - * QED - * - * RL >= 3 for ODT on reads - * RL = AL + CL - * - * Since CL aren't usually less than 2, AL=0 is a minimum, - * so the WL-derived AL should be the -- FIXME? - * - * II. Because you are using auto-precharge globally and want to - * use additive latency (posted CAS) to get more bandwidth. - * 1. Are you going to use auto-precharge mode globally? - * - * Use addtivie latency and compute AL to be 1 cycle less than - * tRCD, i.e. the READ or WRITE command is in the cycle - * immediately following the ACTIVATE command.. - * - * III. Because you feel like it or want to do some sort of - * degraded-performance experiment. - * 1. Do you just want to use additive latency because you feel - * like it? - * - * Validation: AL is less than tRCD, and within the other - * read-to-precharge constraints. - */ - - additive_latency = 0; - -#if defined(CONFIG_FSL_DDR2) - if (lowest_good_caslat < 4) { - additive_latency = picos_to_mclk(tRCD_ps) - lowest_good_caslat; - if (mclk_to_picos(additive_latency) > tRCD_ps) { - additive_latency = picos_to_mclk(tRCD_ps); - debug("setting additive_latency to %u because it was " - " greater than tRCD_ps\n", additive_latency); - } - } - -#elif defined(CONFIG_FSL_DDR3) - /* - * The system will not use the global auto-precharge mode. - * However, it uses the page mode, so we set AL=0 - */ - additive_latency = 0; -#endif - - /* - * Validate additive latency - * FIXME: move to somewhere else to validate - * - * AL <= tRCD(min) - */ - if (mclk_to_picos(additive_latency) > tRCD_ps) { - printf("Error: invalid additive latency exceeds tRCD(min).\n"); - return 1; - } - - /* - * RL = CL + AL; RL >= 3 for ODT_RD_CFG to be enabled - * WL = RL - 1; WL >= 3 for ODT_WL_CFG to be enabled - * ADD_LAT (the register) must be set to a value less - * than ACTTORW if WL = 1, then AL must be set to 1 - * RD_TO_PRE (the register) must be set to a minimum - * tRTP + AL if AL is nonzero - */ - - /* - * Additive latency will be applied only if the memctl option to - * use it. - */ - outpdimm->additive_latency = additive_latency; - - return 0; -} diff --git a/arch/ppc/cpu/mpc8xxx/ddr/main.c b/arch/ppc/cpu/mpc8xxx/ddr/main.c deleted file mode 100644 index faa1af9..0000000 --- a/arch/ppc/cpu/mpc8xxx/ddr/main.c +++ /dev/null @@ -1,479 +0,0 @@ -/* - * Copyright 2008 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] - */ - -#include <common.h> -#include <asm/fsl_ddr_sdram.h> - -#include "ddr.h" - -extern void fsl_ddr_set_lawbar( - const common_timing_params_t *memctl_common_params, - unsigned int memctl_interleaved, - unsigned int ctrl_num); - -/* processor specific function */ -extern void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, - unsigned int ctrl_num); - -/* Board-specific functions defined in each board's ddr.c */ -extern void fsl_ddr_get_spd(generic_spd_eeprom_t *ctrl_dimms_spd, - unsigned int ctrl_num); - -/* - * ASSUMPTIONS: - * - Same number of CONFIG_DIMM_SLOTS_PER_CTLR on each controller - * - Same memory data bus width on all controllers - * - * NOTES: - * - * The memory controller and associated documentation use confusing - * terminology when referring to the orgranization of DRAM. - * - * Here is a terminology translation table: - * - * memory controller/documention |industry |this code |signals - * -------------------------------|-----------|-----------|----------------- - * physical bank/bank |rank |rank |chip select (CS) - * logical bank/sub-bank |bank |bank |bank address (BA) - * page/row |row |page |row address - * ??? |column |column |column address - * - * The naming confusion is further exacerbated by the descriptions of the - * memory controller interleaving feature, where accesses are interleaved - * _BETWEEN_ two seperate memory controllers. This is configured only in - * CS0_CONFIG[INTLV_CTL] of each memory controller. - * - * memory controller documentation | number of chip selects - * | per memory controller supported - * --------------------------------|----------------------------------------- - * cache line interleaving | 1 (CS0 only) - * page interleaving | 1 (CS0 only) - * bank interleaving | 1 (CS0 only) - * superbank interleraving | depends on bank (chip select) - * | interleraving [rank interleaving] - * | mode used on every memory controller - * - * Even further confusing is the existence of the interleaving feature - * _WITHIN_ each memory controller. The feature is referred to in - * documentation as chip select interleaving or bank interleaving, - * although it is configured in the DDR_SDRAM_CFG field. - * - * Name of field | documentation name | this code - * -----------------------------|-----------------------|------------------ - * DDR_SDRAM_CFG[BA_INTLV_CTL] | Bank (chip select) | rank interleaving - * | interleaving - */ - -#ifdef DEBUG -const char *step_string_tbl[] = { - "STEP_GET_SPD", - "STEP_COMPUTE_DIMM_PARMS", - "STEP_COMPUTE_COMMON_PARMS", - "STEP_GATHER_OPTS", - "STEP_ASSIGN_ADDRESSES", - "STEP_COMPUTE_REGS", - "STEP_PROGRAM_REGS", - "STEP_ALL" -}; - -const char * step_to_string(unsigned int step) { - - unsigned int s = __ilog2(step); - - if ((1 << s) != step) - return step_string_tbl[7]; - - return step_string_tbl[s]; -} -#endif - -int step_assign_addresses(fsl_ddr_info_t *pinfo, - unsigned int dbw_cap_adj[], - unsigned int *memctl_interleaving, - unsigned int *rank_interleaving) -{ - int i, j; - - /* - * If a reduced data width is requested, but the SPD - * specifies a physically wider device, adjust the - * computed dimm capacities accordingly before - * assigning addresses. - */ - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { - unsigned int found = 0; - - switch (pinfo->memctl_opts[i].data_bus_width) { - case 2: - /* 16-bit */ - printf("can't handle 16-bit mode yet\n"); - break; - - case 1: - /* 32-bit */ - for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) { - unsigned int dw; - dw = pinfo->dimm_params[i][j].data_width; - if (pinfo->dimm_params[i][j].n_ranks - && (dw == 72 || dw == 64)) { - /* - * FIXME: can't really do it - * like this because this just - * further reduces the memory - */ - found = 1; - break; - } - } - if (found) { - dbw_cap_adj[i] = 1; - } - break; - - case 0: - /* 64-bit */ - break; - - default: - printf("unexpected data bus width " - "specified controller %u\n", i); - return 1; - } - } - - /* - * Check if all controllers are configured for memory - * controller interleaving. - */ - j = 0; - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { - if (pinfo->memctl_opts[i].memctl_interleaving) { - j++; - } - } - if (j == 2) - *memctl_interleaving = 1; - - /* Check that all controllers are rank interleaving. */ - j = 0; - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { - if (pinfo->memctl_opts[i].ba_intlv_ctl) { - j++; - } - } - if (j == 2) - *rank_interleaving = 1; - - if (*memctl_interleaving) { - unsigned long long addr, total_mem_per_ctlr = 0; - /* - * If interleaving between memory controllers, - * make each controller start at a base address - * of 0. - * - * Also, if bank interleaving (chip select - * interleaving) is enabled on each memory - * controller, CS0 needs to be programmed to - * cover the entire memory range on that memory - * controller - * - * Bank interleaving also implies that each - * addressed chip select is identical in size. - */ - - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { - addr = 0; - pinfo->common_timing_params[i].base_address = 0ull; - for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) { - unsigned long long cap - = pinfo->dimm_params[i][j].capacity; - - pinfo->dimm_params[i][j].base_address = addr; - addr += cap >> dbw_cap_adj[i]; - total_mem_per_ctlr += cap >> dbw_cap_adj[i]; - } - } - pinfo->common_timing_params[0].total_mem = total_mem_per_ctlr; - } else { - /* - * Simple linear assignment if memory - * controllers are not interleaved. - */ - unsigned long long cur_memsize = 0; - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { - u64 total_mem_per_ctlr = 0; - pinfo->common_timing_params[i].base_address = - cur_memsize; - for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) { - /* Compute DIMM base addresses. */ - unsigned long long cap = - pinfo->dimm_params[i][j].capacity; - pinfo->dimm_params[i][j].base_address = - cur_memsize; - cur_memsize += cap >> dbw_cap_adj[i]; - total_mem_per_ctlr += cap >> dbw_cap_adj[i]; - } - pinfo->common_timing_params[i].total_mem = - total_mem_per_ctlr; - } - } - - return 0; -} - -unsigned long long -fsl_ddr_compute(fsl_ddr_info_t *pinfo, unsigned int start_step) -{ - unsigned int i, j; - unsigned int all_controllers_memctl_interleaving = 0; - unsigned int all_controllers_rank_interleaving = 0; - unsigned long long total_mem = 0; - - fsl_ddr_cfg_regs_t *ddr_reg = pinfo->fsl_ddr_config_reg; - common_timing_params_t *timing_params = pinfo->common_timing_params; - - /* data bus width capacity adjust shift amount */ - unsigned int dbw_capacity_adjust[CONFIG_NUM_DDR_CONTROLLERS]; - - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { - dbw_capacity_adjust[i] = 0; - } - - debug("starting at step %u (%s)\n", - start_step, step_to_string(start_step)); - - switch (start_step) { - case STEP_GET_SPD: - /* STEP 1: Gather all DIMM SPD data */ - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { - fsl_ddr_get_spd(pinfo->spd_installed_dimms[i], i); - } - - case STEP_COMPUTE_DIMM_PARMS: - /* STEP 2: Compute DIMM parameters from SPD data */ - - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { - for (j = 0; j < CONFIG_DIMM_SLOTS_PER_CTLR; j++) { - unsigned int retval; - generic_spd_eeprom_t *spd = - &(pinfo->spd_installed_dimms[i][j]); - dimm_params_t *pdimm = - &(pinfo->dimm_params[i][j]); - - retval = compute_dimm_parameters(spd, pdimm, i); - if (retval == 2) { - printf("Error: compute_dimm_parameters" - " non-zero returned FATAL value " - "for memctl=%u dimm=%u\n", i, j); - return 0; - } - if (retval) { - debug("Warning: compute_dimm_parameters" - " non-zero return value for memctl=%u " - "dimm=%u\n", i, j); - } - } - } - - case STEP_COMPUTE_COMMON_PARMS: - /* - * STEP 3: Compute a common set of timing parameters - * suitable for all of the DIMMs on each memory controller - */ - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { - debug("Computing lowest common DIMM" - " parameters for memctl=%u\n", i); - compute_lowest_common_dimm_parameters( - pinfo->dimm_params[i], - &timing_params[i], - CONFIG_DIMM_SLOTS_PER_CTLR); - } - - case STEP_GATHER_OPTS: - /* STEP 4: Gather configuration requirements from user */ - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { - debug("Reloading memory controller " - "configuration options for memctl=%u\n", i); - /* - * This "reloads" the memory controller options - * to defaults. If the user "edits" an option, - * next_step points to the step after this, - * which is currently STEP_ASSIGN_ADDRESSES. - */ - populate_memctl_options( - timing_params[i].all_DIMMs_registered, - &pinfo->memctl_opts[i], - pinfo->dimm_params[i], i); - } - - case STEP_ASSIGN_ADDRESSES: - /* STEP 5: Assign addresses to chip selects */ - step_assign_addresses(pinfo, - dbw_capacity_adjust, - &all_controllers_memctl_interleaving, - &all_controllers_rank_interleaving); - - case STEP_COMPUTE_REGS: - /* STEP 6: compute controller register values */ - debug("FSL Memory ctrl cg register computation\n"); - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { - if (timing_params[i].ndimms_present == 0) { - memset(&ddr_reg[i], 0, - sizeof(fsl_ddr_cfg_regs_t)); - continue; - } - - compute_fsl_memctl_config_regs( - &pinfo->memctl_opts[i], - &ddr_reg[i], &timing_params[i], - pinfo->dimm_params[i], - dbw_capacity_adjust[i]); - } - - default: - break; - } - - /* Compute the total amount of memory. */ - - /* - * If bank interleaving but NOT memory controller interleaving - * CS_BNDS describe the quantity of memory on each memory - * controller, so the total is the sum across. - */ - if (!all_controllers_memctl_interleaving - && all_controllers_rank_interleaving) { - total_mem = 0; - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { - total_mem += timing_params[i].total_mem; - } - - } else { - /* - * Compute the amount of memory available just by - * looking for the highest valid CSn_BNDS value. - * This allows us to also experiment with using - * only CS0 when using dual-rank DIMMs. - */ - unsigned int max_end = 0; - - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { - for (j = 0; j < CONFIG_CHIP_SELECTS_PER_CTRL; j++) { - fsl_ddr_cfg_regs_t *reg = &ddr_reg[i]; - if (reg->cs[j].config & 0x80000000) { - unsigned int end; - end = reg->cs[j].bnds & 0xFFF; - if (end > max_end) { - max_end = end; - } - } - } - } - - total_mem = 1 + (((unsigned long long)max_end << 24ULL) - | 0xFFFFFFULL); - } - - return total_mem; -} - -/* - * fsl_ddr_sdram() -- this is the main function to be called by - * initdram() in the board file. - * - * It returns amount of memory configured in bytes. - */ -phys_size_t fsl_ddr_sdram(void) -{ - unsigned int i; - unsigned int memctl_interleaved; - unsigned long long total_memory; - fsl_ddr_info_t info; - - /* Reset info structure. */ - memset(&info, 0, sizeof(fsl_ddr_info_t)); - - /* Compute it once normally. */ - total_memory = fsl_ddr_compute(&info, STEP_GET_SPD); - - /* Check for memory controller interleaving. */ - memctl_interleaved = 0; - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { - memctl_interleaved += - info.memctl_opts[i].memctl_interleaving; - } - - if (memctl_interleaved) { - if (memctl_interleaved == CONFIG_NUM_DDR_CONTROLLERS) { - debug("memctl interleaving\n"); - /* - * Change the meaning of memctl_interleaved - * to be "boolean". - */ - memctl_interleaved = 1; - } else { - printf("Warning: memctl interleaving not " - "properly configured on all controllers\n"); - memctl_interleaved = 0; - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) - info.memctl_opts[i].memctl_interleaving = 0; - debug("Recomputing with memctl_interleaving off.\n"); - total_memory = fsl_ddr_compute(&info, - STEP_ASSIGN_ADDRESSES); - } - } - - /* Program configuration registers. */ - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { - debug("Programming controller %u\n", i); - if (info.common_timing_params[i].ndimms_present == 0) { - debug("No dimms present on controller %u; " - "skipping programming\n", i); - continue; - } - - fsl_ddr_set_memctl_regs(&(info.fsl_ddr_config_reg[i]), i); - } - - if (memctl_interleaved) { - const unsigned int ctrl_num = 0; - - /* Only set LAWBAR1 if memory controller interleaving is on. */ - fsl_ddr_set_lawbar(&info.common_timing_params[0], - memctl_interleaved, ctrl_num); - } else { - /* - * Memory controller interleaving is NOT on; - * set each lawbar individually. - */ - for (i = 0; i < CONFIG_NUM_DDR_CONTROLLERS; i++) { - fsl_ddr_set_lawbar(&info.common_timing_params[i], - 0, i); - } - } - - debug("total_memory = %llu\n", total_memory); - -#if !defined(CONFIG_PHYS_64BIT) - /* Check for 4G or more. Bad. */ - if (total_memory >= (1ull << 32)) { - printf("Detected %lld MB of memory\n", total_memory >> 20); - printf("This U-Boot only supports < 4G of DDR\n"); - printf("You could rebuild it with CONFIG_PHYS_64BIT\n"); - total_memory = CONFIG_MAX_MEM_MAPPED; - } -#endif - - return total_memory; -} diff --git a/arch/ppc/cpu/mpc8xxx/ddr/options.c b/arch/ppc/cpu/mpc8xxx/ddr/options.c deleted file mode 100644 index 46731c8..0000000 --- a/arch/ppc/cpu/mpc8xxx/ddr/options.c +++ /dev/null @@ -1,297 +0,0 @@ -/* - * Copyright 2008, 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 as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. - */ - -#include <common.h> -#include <asm/fsl_ddr_sdram.h> - -#include "ddr.h" - -/* 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); - -unsigned int populate_memctl_options(int all_DIMMs_registered, - memctl_options_t *popts, - dimm_params_t *pdimm, - unsigned int ctrl_num) -{ - unsigned int i; - const char *p; - - /* Chip select options. */ - - /* Pick chip-select local options. */ - for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) { - /* If not DDR2, odt_rd_cfg and odt_wr_cfg need to be 0. */ - - /* only for single CS? */ - popts->cs_local_opts[i].odt_rd_cfg = 0; - - popts->cs_local_opts[i].odt_wr_cfg = 1; - 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 */ -#ifdef CONFIG_DDR_ECC - popts->ECC_mode = 1; /* 0 = disabled, 1 = enabled */ -#else - popts->ECC_mode = 0; /* 0 = disabled, 1 = enabled */ -#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; - - /* 0 = 64-bit, 1 = 32-bit, 2 = 16-bit */ - popts->data_bus_width = 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 - 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; - - /* - * 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->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 the 2 memory - * controllers. - * - * XXX: Attempt to set both 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 ((p = getenv("memctl_intlv_ctl")) != NULL) { - if (pdimm[0].n_ranks == 0) { - printf("There is no rank on CS0. Because only rank on " - "CS0 and ranks chip-select interleaved with CS0" - " are controller interleaved, force non memory " - "controller interleaving\n"); - popts->memctl_interleaving = 0; - } else { - popts->memctl_interleaving = 1; - if (strcmp(p, "cacheline") == 0) - popts->memctl_interleaving_mode = - FSL_DDR_CACHE_LINE_INTERLEAVING; - else if (strcmp(p, "page") == 0) - popts->memctl_interleaving_mode = - FSL_DDR_PAGE_INTERLEAVING; - else if (strcmp(p, "bank") == 0) - popts->memctl_interleaving_mode = - FSL_DDR_BANK_INTERLEAVING; - else if (strcmp(p, "superbank") == 0) - popts->memctl_interleaving_mode = - FSL_DDR_SUPERBANK_INTERLEAVING; - else - popts->memctl_interleaving_mode = - simple_strtoul(p, NULL, 0); - } - } -#endif - - if( ((p = getenv("ba_intlv_ctl")) != NULL) && - (CONFIG_CHIP_SELECTS_PER_CTRL > 1)) { - if (strcmp(p, "cs0_cs1") == 0) - popts->ba_intlv_ctl = FSL_DDR_CS0_CS1; - else if (strcmp(p, "cs2_cs3") == 0) - popts->ba_intlv_ctl = FSL_DDR_CS2_CS3; - else if (strcmp(p, "cs0_cs1_and_cs2_cs3") == 0) - popts->ba_intlv_ctl = FSL_DDR_CS0_CS1_AND_CS2_CS3; - else if (strcmp(p, "cs0_cs1_cs2_cs3") == 0) - popts->ba_intlv_ctl = FSL_DDR_CS0_CS1_CS2_CS3; - else - popts->ba_intlv_ctl = simple_strtoul(p, NULL, 0); - - switch (popts->ba_intlv_ctl & FSL_DDR_CS0_CS1_CS2_CS3) { - case FSL_DDR_CS0_CS1_CS2_CS3: - 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, force non-interleaving!\n"); - } - break; - case FSL_DDR_CS2_CS3: - if (pdimm[1].n_ranks !=2){ - popts->ba_intlv_ctl = 0; - printf("Not enough bank(CS) for CS2+CS3, " - "force non-interleaving!\n"); - } - break; - case FSL_DDR_CS0_CS1_AND_CS2_CS3: - if ((pdimm[0].n_ranks != 2)||(pdimm[1].n_ranks != 2)) { - popts->ba_intlv_ctl = 0; - printf("Not enough bank(CS) for CS0+CS1 or " - "CS2+CS3, force non-interleaving!\n"); - } - break; - default: - popts->ba_intlv_ctl = 0; - break; - } - } - - fsl_ddr_board_options(popts, pdimm, ctrl_num); - - return 0; -} diff --git a/arch/ppc/cpu/mpc8xxx/ddr/util.c b/arch/ppc/cpu/mpc8xxx/ddr/util.c deleted file mode 100644 index 1e2d921..0000000 --- a/arch/ppc/cpu/mpc8xxx/ddr/util.c +++ /dev/null @@ -1,206 +0,0 @@ -/* - * Copyright 2008 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 <asm/fsl_law.h> - -#include "ddr.h" - -unsigned int fsl_ddr_get_mem_data_rate(void); - -/* - * Round mclk_ps to nearest 10 ps in memory controller code. - * - * If an imprecise data rate is too high due to rounding error - * propagation, compute a suitably rounded mclk_ps to compute - * a working memory controller configuration. - */ -unsigned int get_memory_clk_period_ps(void) -{ - unsigned int mclk_ps; - - mclk_ps = 2000000000000ULL / fsl_ddr_get_mem_data_rate(); - /* round to nearest 10 ps */ - return 10 * ((mclk_ps + 5) / 10); -} - -/* Convert picoseconds into DRAM clock cycles (rounding up if needed). */ -unsigned int picos_to_mclk(unsigned int picos) -{ - const unsigned long long ULL_2e12 = 2000000000000ULL; - const unsigned long long ULL_8Fs = 0xFFFFFFFFULL; - unsigned long long clks; - unsigned long long clks_temp; - - if (!picos) - return 0; - - clks = fsl_ddr_get_mem_data_rate() * (unsigned long long) picos; - clks_temp = clks; - clks = clks / ULL_2e12; - if (clks_temp % ULL_2e12) { - clks++; - } - - if (clks > ULL_8Fs) { - clks = ULL_8Fs; - } - - return (unsigned int) clks; -} - -unsigned int mclk_to_picos(unsigned int mclk) -{ - return get_memory_clk_period_ps() * mclk; -} - -void -__fsl_ddr_set_lawbar(const common_timing_params_t *memctl_common_params, - unsigned int memctl_interleaved, - unsigned int ctrl_num) -{ - unsigned long long base = memctl_common_params->base_address; - unsigned long long size = memctl_common_params->total_mem; - - /* - * If no DIMMs on this controller, do not proceed any further. - */ - if (!memctl_common_params->ndimms_present) { - return; - } - -#if !defined(CONFIG_PHYS_64BIT) - if (base >= CONFIG_MAX_MEM_MAPPED) - return; - if ((base + size) >= CONFIG_MAX_MEM_MAPPED) - size = CONFIG_MAX_MEM_MAPPED - base; -#endif - - if (ctrl_num == 0) { - /* - * Set up LAW for DDR controller 1 space. - */ - unsigned int lawbar1_target_id = memctl_interleaved - ? LAW_TRGT_IF_DDR_INTRLV : LAW_TRGT_IF_DDR_1; - - if (set_ddr_laws(base, size, lawbar1_target_id) < 0) { - printf("%s: ERROR (ctrl #0, intrlv=%d)\n", __func__, - memctl_interleaved); - return ; - } - } else if (ctrl_num == 1) { - if (set_ddr_laws(base, size, LAW_TRGT_IF_DDR_2) < 0) { - printf("%s: ERROR (ctrl #1)\n", __func__); - return ; - } - } else { - printf("%s: unexpected DDR controller number (%u)\n", __func__, - ctrl_num); - } -} - -__attribute__((weak, alias("__fsl_ddr_set_lawbar"))) void -fsl_ddr_set_lawbar(const common_timing_params_t *memctl_common_params, - unsigned int memctl_interleaved, - unsigned int ctrl_num); - -void board_add_ram_info(int use_default) -{ -#if defined(CONFIG_MPC85xx) - volatile ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC85xx_DDR_ADDR); -#elif defined(CONFIG_MPC86xx) - volatile ccsr_ddr_t *ddr = (void *)(CONFIG_SYS_MPC86xx_DDR_ADDR); -#endif -#if (CONFIG_NUM_DDR_CONTROLLERS > 1) - uint32_t cs0_config = in_be32(&ddr->cs0_config); -#endif - uint32_t sdram_cfg = in_be32(&ddr->sdram_cfg); - int cas_lat; - - puts(" (DDR"); - switch ((sdram_cfg & SDRAM_CFG_SDRAM_TYPE_MASK) >> - SDRAM_CFG_SDRAM_TYPE_SHIFT) { - case SDRAM_TYPE_DDR1: - puts("1"); - break; - case SDRAM_TYPE_DDR2: - puts("2"); - break; - case SDRAM_TYPE_DDR3: - puts("3"); - break; - default: - puts("?"); - break; - } - - if (sdram_cfg & SDRAM_CFG_32_BE) - puts(", 32-bit"); - else - puts(", 64-bit"); - - /* Calculate CAS latency based on timing cfg values */ - cas_lat = ((in_be32(&ddr->timing_cfg_1) >> 16) & 0xf) + 1; - if ((in_be32(&ddr->timing_cfg_3) >> 12) & 1) - cas_lat += (8 << 1); - printf(", CL=%d", cas_lat >> 1); - if (cas_lat & 0x1) - puts(".5"); - - if (sdram_cfg & SDRAM_CFG_ECC_EN) - puts(", ECC on)"); - else - puts(", ECC off)"); - -#if (CONFIG_NUM_DDR_CONTROLLERS > 1) - if (cs0_config & 0x20000000) { - puts("\n"); - puts(" DDR Controller Interleaving Mode: "); - - switch ((cs0_config >> 24) & 0xf) { - case FSL_DDR_CACHE_LINE_INTERLEAVING: - puts("cache line"); - break; - case FSL_DDR_PAGE_INTERLEAVING: - puts("page"); - break; - case FSL_DDR_BANK_INTERLEAVING: - puts("bank"); - break; - case FSL_DDR_SUPERBANK_INTERLEAVING: - puts("super-bank"); - break; - default: - puts("invalid"); - break; - } - } -#endif - - if ((sdram_cfg >> 8) & 0x7f) { - puts("\n"); - puts(" DDR Chip-Select Interleaving Mode: "); - switch(sdram_cfg >> 8 & 0x7f) { - case FSL_DDR_CS0_CS1_CS2_CS3: - puts("CS0+CS1+CS2+CS3"); - break; - case FSL_DDR_CS0_CS1: - puts("CS0+CS1"); - break; - case FSL_DDR_CS2_CS3: - puts("CS2+CS3"); - break; - case FSL_DDR_CS0_CS1_AND_CS2_CS3: - puts("CS0+CS1 and CS2+CS3"); - break; - default: - puts("invalid"); - break; - } - } -} diff --git a/arch/ppc/cpu/mpc8xxx/fdt.c b/arch/ppc/cpu/mpc8xxx/fdt.c deleted file mode 100644 index e68d6f3..0000000 --- a/arch/ppc/cpu/mpc8xxx/fdt.c +++ /dev/null @@ -1,55 +0,0 @@ -/* - * Copyright 2009 Freescale Semiconductor, Inc. - * - * This file is derived from arch/ppc/cpu/mpc85xx/cpu.c and - * arch/ppc/cpu/mpc86xx/cpu.c. Basically this file contains - * cpu specific common code for 85xx/86xx processors. - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <libfdt.h> -#include <fdt_support.h> - -void ft_fixup_num_cores(void *blob) { - int off, num_cores, del_cores; - - del_cores = 0; - num_cores = cpu_numcores(); - - off = fdt_node_offset_by_prop_value(blob, -1, "device_type", "cpu", 4); - while (off != -FDT_ERR_NOTFOUND) { - u32 *reg = (u32 *)fdt_getprop(blob, off, "reg", 0); - - /* if we find a cpu node outside of what we expect delete it - * and reset the offset back to the start since we can't - * trust the offsets anymore - */ - if (*reg > num_cores-1) { - fdt_del_node(blob, off); - del_cores++; - off = -1; - } - off = fdt_node_offset_by_prop_value(blob, off, - "device_type", "cpu", 4); - } - debug ("%x core system found\n", num_cores); - debug ("deleted %d extra core entry entries from device tree\n", - del_cores); -} diff --git a/arch/ppc/cpu/mpc8xxx/pci_cfg.c b/arch/ppc/cpu/mpc8xxx/pci_cfg.c deleted file mode 100644 index 9b7181d..0000000 --- a/arch/ppc/cpu/mpc8xxx/pci_cfg.c +++ /dev/null @@ -1,214 +0,0 @@ -/* - * Copyright 2009-2010 Freescale Semiconductor, Inc. - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <asm/fsl_law.h> -#include <pci.h> - -struct pci_info { - u32 cfg; -}; - -/* The cfg field is a bit mask in which each bit represents the value of - * cfg_IO_ports[] signal and the bit is set if the interface would be - * enabled based on the value of cfg_IO_ports[] signal - * - * On MPC86xx/PQ3 based systems: - * we extract cfg_IO_ports from GUTS register PORDEVSR - * - * cfg_IO_ports only exist on systems w/PCIe (we set cfg 0 for systems - * without PCIe) - */ - -#if defined(CONFIG_MPC8540) || defined(CONFIG_MPC8560) -static struct pci_info pci_config_info[] = -{ - [LAW_TRGT_IF_PCI] = { - .cfg = 0, - }, -}; -#elif defined(CONFIG_MPC8541) || defined(CONFIG_MPC8555) -static struct pci_info pci_config_info[] = -{ - [LAW_TRGT_IF_PCI] = { - .cfg = 0, - }, -}; -#elif defined(CONFIG_MPC8536) -static struct pci_info pci_config_info[] = -{ - [LAW_TRGT_IF_PCI] = { - .cfg = 0, - }, - [LAW_TRGT_IF_PCIE_1] = { - .cfg = (1 << 2) | (1 << 3) | (1 << 5) | (1 << 7), - }, - [LAW_TRGT_IF_PCIE_2] = { - .cfg = (1 << 5) | (1 << 7), - }, - [LAW_TRGT_IF_PCIE_3] = { - .cfg = (1 << 7), - }, -}; -#elif defined(CONFIG_MPC8544) -static struct pci_info pci_config_info[] = -{ - [LAW_TRGT_IF_PCI] = { - .cfg = 0, - }, - [LAW_TRGT_IF_PCIE_1] = { - .cfg = (1 << 2) | (1 << 3) | (1 << 4) | (1 << 5) | - (1 << 6) | (1 << 7), - }, - [LAW_TRGT_IF_PCIE_2] = { - .cfg = (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7), - }, - [LAW_TRGT_IF_PCIE_3] = { - .cfg = (1 << 6) | (1 << 7), - }, -}; -#elif defined(CONFIG_MPC8548) -static struct pci_info pci_config_info[] = -{ - [LAW_TRGT_IF_PCI_1] = { - .cfg = 0, - }, - [LAW_TRGT_IF_PCI_2] = { - .cfg = 0, - }, - /* PCI_2 is always host and we dont use iosel to determine enable/disable */ - [LAW_TRGT_IF_PCIE_1] = { - .cfg = (1 << 3) | (1 << 4) | (1 << 7), - }, -}; -#elif defined(CONFIG_MPC8568) -static struct pci_info pci_config_info[] = -{ - [LAW_TRGT_IF_PCI] = { - .cfg = 0, - }, - [LAW_TRGT_IF_PCIE_1] = { - .cfg = (1 << 3) | (1 << 4) | (1 << 7), - }, -}; -#elif defined(CONFIG_MPC8569) -static struct pci_info pci_config_info[] = -{ - [LAW_TRGT_IF_PCIE_1] = { - .cfg = (1 << 0) | (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7) | - (1 << 8) | (1 << 0xc) | (1 << 0xf), - }, -}; -#elif defined(CONFIG_MPC8572) -static struct pci_info pci_config_info[] = -{ - [LAW_TRGT_IF_PCIE_1] = { - .cfg = (1 << 2) | (1 << 3) | (1 << 7) | - (1 << 0xb) | (1 << 0xc) | (1 << 0xf), - }, - [LAW_TRGT_IF_PCIE_2] = { - .cfg = (1 << 3) | (1 << 7), - }, - [LAW_TRGT_IF_PCIE_3] = { - .cfg = (1 << 7), - }, -}; -#elif defined(CONFIG_MPC8610) -static struct pci_info pci_config_info[] = -{ - [LAW_TRGT_IF_PCI_1] = { - .cfg = 0, - }, - [LAW_TRGT_IF_PCIE_1] = { - .cfg = (1 << 1) | (1 << 4), - }, - [LAW_TRGT_IF_PCIE_2] = { - .cfg = (1 << 0) | (1 << 4), - }, -}; -#elif defined(CONFIG_MPC8641) -static struct pci_info pci_config_info[] = -{ - [LAW_TRGT_IF_PCIE_1] = { - .cfg = (1 << 2) | (1 << 3) | (1 << 5) | (1 << 6) | - (1 << 7) | (1 << 0xe) | (1 << 0xf), - }, -}; -#elif defined(CONFIG_P1011) || defined(CONFIG_P1020) || \ - defined(CONFIG_P1012) || defined(CONFIG_P1021) -static struct pci_info pci_config_info[] = -{ - [LAW_TRGT_IF_PCIE_1] = { - .cfg = (1 << 0) | (1 << 6) | (1 << 0xe) | (1 << 0xf), - }, - [LAW_TRGT_IF_PCIE_2] = { - .cfg = (1 << 0xe), - }, -}; -#elif defined(CONFIG_P1013) || defined(CONFIG_P1022) -static struct pci_info pci_config_info[] = -{ - [LAW_TRGT_IF_PCIE_1] = { - .cfg = (1 << 6) | (1 << 7) | (1 << 9) | (1 << 0xa) | - (1 << 0xb) | (1 << 0xd) | (1 << 0xe) | - (1 << 0xf) | (1 << 0x15) | (1 << 0x16) | - (1 << 0x17) | (1 << 0x18) | (1 << 0x19) | - (1 << 0x1a) | (1 << 0x1b) | (1 << 0x1c) | - (1 << 0x1d) | (1 << 0x1e) | (1 << 0x1f), - }, - [LAW_TRGT_IF_PCIE_2] = { - .cfg = (1 << 0) | (1 << 1) | (1 << 6) | (1 << 7) | - (1 << 9) | (1 << 0xa) | (1 << 0xb) | (1 << 0xd) | - (1 << 0x15) | (1 << 0x16) | (1 << 0x17) | - (1 << 0x18) | (1 << 0x1c), - }, - [LAW_TRGT_IF_PCIE_3] = { - .cfg = (1 << 6) | (1 << 7) | (1 << 9) | (1 << 0xd) | - (1 << 0x15) | (1 << 0x16) | (1 << 0x17) | (1 << 0x18) | - (1 << 0x19) | (1 << 0x1a) | (1 << 0x1b), - }, -}; -#elif defined(CONFIG_P2010) || defined(CONFIG_P2020) -static struct pci_info pci_config_info[] = -{ - [LAW_TRGT_IF_PCIE_1] = { - .cfg = (1 << 0) | (1 << 2) | (1 << 4) | (1 << 6) | - (1 << 0xd) | (1 << 0xe) | (1 << 0xf), - }, - [LAW_TRGT_IF_PCIE_2] = { - .cfg = (1 << 2) | (1 << 0xe), - }, - [LAW_TRGT_IF_PCIE_3] = { - .cfg = (1 << 2) | (1 << 4), - }, -}; -#elif defined(CONFIG_FSL_CORENET) -#else -#error Need to define pci_config_info for processor -#endif - -#ifndef CONFIG_FSL_CORENET -int is_fsl_pci_cfg(enum law_trgt_if trgt, u32 io_sel) -{ - return ((1 << io_sel) & pci_config_info[trgt].cfg); -} -#endif |