diff options
Diffstat (limited to 'cpu/mpc8xxx')
-rw-r--r-- | cpu/mpc8xxx/ddr/ctrl_regs.c | 40 | ||||
-rw-r--r-- | cpu/mpc8xxx/ddr/options.c | 8 | ||||
-rw-r--r-- | cpu/mpc8xxx/pci_cfg.c | 47 |
3 files changed, 38 insertions, 57 deletions
diff --git a/cpu/mpc8xxx/ddr/ctrl_regs.c b/cpu/mpc8xxx/ddr/ctrl_regs.c index 2505041..adc4f6e 100644 --- a/cpu/mpc8xxx/ddr/ctrl_regs.c +++ b/cpu/mpc8xxx/ddr/ctrl_regs.c @@ -188,12 +188,13 @@ static void set_timing_cfg_0(fsl_ddr_cfg_regs_t *ddr) * The DDR3 spec has not tXARD, * we use the tXP instead of it. * tXP=max(3nCK, 7.5ns) for DDR3. - * we use the tXP=6 * spec has not the tAXPD, we use * tAXPD=8, need design to confirm. */ - act_pd_exit_mclk = 6; - pre_pd_exit_mclk = 6; + 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 */ @@ -575,18 +576,22 @@ static void set_ddr_sdram_cfg_2(fsl_ddr_cfg_regs_t *ddr, } /* DDR SDRAM Mode configuration 2 (DDR_SDRAM_MODE_2) */ -static void set_ddr_sdram_mode_2(fsl_ddr_cfg_regs_t *ddr) +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 = 2; /* 120 ohm Rtt_WR */ + 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) @@ -1001,8 +1006,8 @@ static void set_ddr_zq_cntl(fsl_ddr_cfg_regs_t *ddr, unsigned int zq_en) } /* DDR Write Leveling Control (DDR_WRLVL_CNTL) */ -static void set_ddr_wrlvl_cntl(fsl_ddr_cfg_regs_t *ddr, - unsigned int wrlvl_en) +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 @@ -1029,8 +1034,9 @@ static void set_ddr_wrlvl_cntl(fsl_ddr_cfg_regs_t *ddr, /* tWL_DQSEN min = 25 nCK, we set it 32 */ wrlvl_dqsen = 0x5; /* - * Write leveling sample time at least need 14 clocks - * due to tWLO = 9, we set it 15 clocks + * 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; /* @@ -1043,9 +1049,16 @@ static void set_ddr_wrlvl_cntl(fsl_ddr_cfg_regs_t *ddr, * Write leveling start time * The value use for the DQS_ADJUST for the first sample * when write leveling is enabled. - * we set it 1 clock delay */ 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 @@ -1184,7 +1197,10 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts, /* 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; } @@ -1321,7 +1337,7 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts, 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); + 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); @@ -1331,7 +1347,7 @@ compute_fsl_memctl_config_regs(const memctl_options_t *popts, set_timing_cfg_5(ddr); set_ddr_zq_cntl(ddr, zq_en); - set_ddr_wrlvl_cntl(ddr, wrlvl_en); + set_ddr_wrlvl_cntl(ddr, wrlvl_en, popts); set_ddr_sr_cntr(ddr, sr_it); diff --git a/cpu/mpc8xxx/ddr/options.c b/cpu/mpc8xxx/ddr/options.c index db44291..3dcd33d 100644 --- a/cpu/mpc8xxx/ddr/options.c +++ b/cpu/mpc8xxx/ddr/options.c @@ -22,9 +22,7 @@ unsigned int populate_memctl_options(int all_DIMMs_registered, unsigned int ctrl_num) { unsigned int i; -#if (CONFIG_NUM_DDR_CONTROLLERS > 1) const char *p; -#endif /* Chip select options. */ @@ -200,6 +198,7 @@ unsigned int populate_memctl_options(int all_DIMMs_registered, * meet the tQDSS under different loading. */ popts->wrlvl_en = 1; + popts->wrlvl_override = 0; #endif /* @@ -242,8 +241,10 @@ unsigned int populate_memctl_options(int all_DIMMs_registered, simple_strtoul(p, NULL, 0); } } +#endif - if( (p = getenv("ba_intlv_ctl")) != NULL) { + 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) @@ -283,7 +284,6 @@ unsigned int populate_memctl_options(int all_DIMMs_registered, break; } } -#endif fsl_ddr_board_options(popts, pdimm, ctrl_num); diff --git a/cpu/mpc8xxx/pci_cfg.c b/cpu/mpc8xxx/pci_cfg.c index 9c7d92c..d53781b 100644 --- a/cpu/mpc8xxx/pci_cfg.c +++ b/cpu/mpc8xxx/pci_cfg.c @@ -25,19 +25,14 @@ #include <pci.h> struct pci_info { - u16 agent; u16 cfg; }; -/* The agent field is a bit mask in which each bit represents the value of - * cfg_host_agt[] signal and the bit is set of the given interface would be - * in agent/end-point mode for the given interface. - * - * The same idea is true of the cfg field. The bit will be set if the - * interface would be enabled based on the value of cfg_IO_ports[] signal +/* 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_host_agt from GUTS register PORBMSR * we extract cfg_IO_ports from GUTS register PORDEVSR * * cfg_IO_ports only exist on systems w/PCIe (we set cfg 0 for systems @@ -48,7 +43,6 @@ struct pci_info { static struct pci_info pci_config_info[] = { [LAW_TRGT_IF_PCI] = { - .agent = (1 << 0) | (1 << 2), .cfg = 0, }, }; @@ -56,7 +50,6 @@ static struct pci_info pci_config_info[] = static struct pci_info pci_config_info[] = { [LAW_TRGT_IF_PCI] = { - .agent = (1 << 0), .cfg = 0, }, }; @@ -64,19 +57,15 @@ static struct pci_info pci_config_info[] = static struct pci_info pci_config_info[] = { [LAW_TRGT_IF_PCI] = { - .agent = (1 << 6), .cfg = 0, }, [LAW_TRGT_IF_PCIE_1] = { - .agent = (1 << 5), .cfg = (1 << 2) | (1 << 3) | (1 << 5) | (1 << 7), }, [LAW_TRGT_IF_PCIE_2] = { - .agent = (1 << 3), .cfg = (1 << 5) | (1 << 7), }, [LAW_TRGT_IF_PCIE_3] = { - .agent = (1 << 1), .cfg = (1 << 7), }, }; @@ -84,20 +73,16 @@ static struct pci_info pci_config_info[] = static struct pci_info pci_config_info[] = { [LAW_TRGT_IF_PCI] = { - .agent = (1 << 6), .cfg = 0, }, [LAW_TRGT_IF_PCIE_1] = { - .agent = (1 << 5), .cfg = (1 << 2) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7), }, [LAW_TRGT_IF_PCIE_2] = { - .agent = (1 << 3), .cfg = (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7), }, [LAW_TRGT_IF_PCIE_3] = { - .agent = (1 << 1), .cfg = (1 << 6) | (1 << 7), }, }; @@ -105,16 +90,13 @@ static struct pci_info pci_config_info[] = static struct pci_info pci_config_info[] = { [LAW_TRGT_IF_PCI_1] = { - .agent = (1 << 4) | (1 << 6), .cfg = 0, }, [LAW_TRGT_IF_PCI_2] = { - .agent = (1 << 4) | (1 << 6), .cfg = 0, }, /* PCI_2 is always host and we dont use iosel to determine enable/disable */ [LAW_TRGT_IF_PCIE_1] = { - .agent = (1 << 0) | (1 << 2), .cfg = (1 << 3) | (1 << 4) | (1 << 7), }, }; @@ -122,11 +104,9 @@ static struct pci_info pci_config_info[] = static struct pci_info pci_config_info[] = { [LAW_TRGT_IF_PCI] = { - .agent = (1 << 0) | (1 << 4) | (1 << 6), .cfg = 0, }, [LAW_TRGT_IF_PCIE_1] = { - .agent = (1 << 0) | (1 << 2) | (1 << 4), .cfg = (1 << 3) | (1 << 4) | (1 << 7), }, }; @@ -134,7 +114,6 @@ static struct pci_info pci_config_info[] = static struct pci_info pci_config_info[] = { [LAW_TRGT_IF_PCIE_1] = { - .agent = (1 << 0) | (1 << 6), .cfg = (1 << 0) | (1 << 4) | (1 << 5) | (1 << 6) | (1 << 7) | (1 << 8) | (1 << 0xc) | (1 << 0xf), }, @@ -143,16 +122,13 @@ static struct pci_info pci_config_info[] = static struct pci_info pci_config_info[] = { [LAW_TRGT_IF_PCIE_1] = { - .agent = (1 << 0) | (1 << 1) | (1 << 4) | (1 << 5), .cfg = (1 << 2) | (1 << 3) | (1 << 7) | (1 << 0xb) | (1 << 0xc) | (1 << 0xf), }, [LAW_TRGT_IF_PCIE_2] = { - .agent = (1 << 0) | (1 << 2) | (1 << 4) | (1 << 6), .cfg = (1 << 3) | (1 << 7), }, [LAW_TRGT_IF_PCIE_3] = { - .agent = (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6), .cfg = (1 << 7), }, }; @@ -160,15 +136,12 @@ static struct pci_info pci_config_info[] = static struct pci_info pci_config_info[] = { [LAW_TRGT_IF_PCI_1] = { - .agent = (1 << 4) | (1 << 5) | (1 << 6), .cfg = 0, }, [LAW_TRGT_IF_PCIE_1] = { - .agent = (1 << 0) | (1 << 2) | (1 << 5), .cfg = (1 << 1) | (1 << 4), }, [LAW_TRGT_IF_PCIE_2] = { - .agent = (1 << 0) | (1 << 1) | (1 << 4), .cfg = (1 << 0) | (1 << 4), }, }; @@ -176,7 +149,6 @@ static struct pci_info pci_config_info[] = static struct pci_info pci_config_info[] = { [LAW_TRGT_IF_PCIE_1] = { - .agent = 0, /* we dont use agent on 8641 */ .cfg = (1 << 2) | (1 << 3) | (1 << 5) | (1 << 6) | (1 << 7) | (1 << 0xe) | (1 << 0xf), }, @@ -185,11 +157,9 @@ static struct pci_info pci_config_info[] = static struct pci_info pci_config_info[] = { [LAW_TRGT_IF_PCIE_1] = { - .agent = (1 << 0) | (1 << 1), .cfg = (1 << 0) | (1 << 6) | (1 << 0xe) | (1 << 0xf), }, [LAW_TRGT_IF_PCIE_2] = { - .agent = (1 << 0) | (1 << 2), .cfg = (1 << 0xe), }, }; @@ -197,29 +167,24 @@ static struct pci_info pci_config_info[] = static struct pci_info pci_config_info[] = { [LAW_TRGT_IF_PCIE_1] = { - .agent = (1 << 0) | (1 << 1) | (1 << 4) | (1 << 5), .cfg = (1 << 0) | (1 << 2) | (1 << 4) | (1 << 6) | (1 << 0xd) | (1 << 0xe) | (1 << 0xf), }, [LAW_TRGT_IF_PCIE_2] = { - .agent = (1 << 0) | (1 << 2) | (1 << 4) | (1 << 6), .cfg = (1 << 2) | (1 << 0xe), }, [LAW_TRGT_IF_PCIE_3] = { - .agent = (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6), .cfg = (1 << 2) | (1 << 4), }, }; +#elif defined(CONFIG_FSL_CORENET) #else #error Need to define pci_config_info for processor #endif -int is_fsl_pci_agent(enum law_trgt_if trgt, u32 host_agent) -{ - return ((1 << host_agent) & pci_config_info[trgt].agent); -} - +#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 |