/* * ddr_defs.h * * ddr specific header * * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ * * 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. */ #ifndef _DDR_DEFS_H #define _DDR_DEFS_H #include #include /* AM335X EMIF Register values */ #define VTP_CTRL_READY (0x1 << 5) #define VTP_CTRL_ENABLE (0x1 << 6) #define VTP_CTRL_START_EN (0x1) #define PHY_DLL_LOCK_DIFF 0x0 #define DDR_CKE_CTRL_NORMAL 0x1 /* Micron MT47H128M16RT-25E */ #define MT47H128M16RT25E_EMIF_READ_LATENCY 0x100005 #define MT47H128M16RT25E_EMIF_TIM1 0x0666B3C9 #define MT47H128M16RT25E_EMIF_TIM2 0x243631CA #define MT47H128M16RT25E_EMIF_TIM3 0x0000033F #define MT47H128M16RT25E_EMIF_SDCFG 0x41805332 #define MT47H128M16RT25E_EMIF_SDREF 0x0000081a #define MT47H128M16RT25E_DLL_LOCK_DIFF 0x0 #define MT47H128M16RT25E_RATIO 0x80 #define MT47H128M16RT25E_INVERT_CLKOUT 0x00 #define MT47H128M16RT25E_RD_DQS 0x12 #define MT47H128M16RT25E_WR_DQS 0x00 #define MT47H128M16RT25E_PHY_WRLVL 0x00 #define MT47H128M16RT25E_PHY_GATELVL 0x00 #define MT47H128M16RT25E_PHY_WR_DATA 0x40 #define MT47H128M16RT25E_PHY_FIFO_WE 0x80 #define MT47H128M16RT25E_PHY_RANK0_DELAY 0x1 #define MT47H128M16RT25E_IOCTRL_VALUE 0x18B /* Micron MT41J128M16JT-125 */ #define MT41J128MJT125_EMIF_READ_LATENCY 0x06 #define MT41J128MJT125_EMIF_TIM1 0x0888A39B #define MT41J128MJT125_EMIF_TIM2 0x26337FDA #define MT41J128MJT125_EMIF_TIM3 0x501F830F #define MT41J128MJT125_EMIF_SDCFG 0x61C04AB2 #define MT41J128MJT125_EMIF_SDREF 0x0000093B #define MT41J128MJT125_ZQ_CFG 0x50074BE4 #define MT41J128MJT125_DLL_LOCK_DIFF 0x1 #define MT41J128MJT125_RATIO 0x40 #define MT41J128MJT125_INVERT_CLKOUT 0x1 #define MT41J128MJT125_RD_DQS 0x3B #define MT41J128MJT125_WR_DQS 0x85 #define MT41J128MJT125_PHY_WR_DATA 0xC1 #define MT41J128MJT125_PHY_FIFO_WE 0x100 #define MT41J128MJT125_IOCTRL_VALUE 0x18B /** * Configure SDRAM */ void config_sdram(const struct emif_regs *regs); /** * Set SDRAM timings */ void set_sdram_timings(const struct emif_regs *regs); /** * Configure DDR PHY */ void config_ddr_phy(const struct emif_regs *regs); /** * This structure represents the DDR registers on AM33XX devices. * We make use of DDR_PHY_BASE_ADDR2 to address the DATA1 registers that * correspond to DATA1 registers defined here. */ struct ddr_regs { unsigned int resv0[7]; unsigned int cm0csratio; /* offset 0x01C */ unsigned int resv1[2]; unsigned int cm0dldiff; /* offset 0x028 */ unsigned int cm0iclkout; /* offset 0x02C */ unsigned int resv2[8]; unsigned int cm1csratio; /* offset 0x050 */ unsigned int resv3[2]; unsigned int cm1dldiff; /* offset 0x05C */ unsigned int cm1iclkout; /* offset 0x060 */ unsigned int resv4[8]; unsigned int cm2csratio; /* offset 0x084 */ unsigned int resv5[2]; unsigned int cm2dldiff; /* offset 0x090 */ unsigned int cm2iclkout; /* offset 0x094 */ unsigned int resv6[12]; unsigned int dt0rdsratio0; /* offset 0x0C8 */ unsigned int resv7[4]; unsigned int dt0wdsratio0; /* offset 0x0DC */ unsigned int resv8[4]; unsigned int dt0wiratio0; /* offset 0x0F0 */ unsigned int resv9; unsigned int dt0wimode0; /* offset 0x0F8 */ unsigned int dt0giratio0; /* offset 0x0FC */ unsigned int resv10; unsigned int dt0gimode0; /* offset 0x104 */ unsigned int dt0fwsratio0; /* offset 0x108 */ unsigned int resv11[4]; unsigned int dt0dqoffset; /* offset 0x11C */ unsigned int dt0wrsratio0; /* offset 0x120 */ unsigned int resv12[4]; unsigned int dt0rdelays0; /* offset 0x134 */ unsigned int dt0dldiff0; /* offset 0x138 */ }; /** * Encapsulates DDR CMD control registers. */ struct cmd_control { unsigned long cmd0csratio; unsigned long cmd0csforce; unsigned long cmd0csdelay; unsigned long cmd0dldiff; unsigned long cmd0iclkout; unsigned long cmd1csratio; unsigned long cmd1csforce; unsigned long cmd1csdelay; unsigned long cmd1dldiff; unsigned long cmd1iclkout; unsigned long cmd2csratio; unsigned long cmd2csforce; unsigned long cmd2csdelay; unsigned long cmd2dldiff; unsigned long cmd2iclkout; }; /** * Encapsulates DDR DATA registers. */ struct ddr_data { unsigned long datardsratio0; unsigned long datawdsratio0; unsigned long datawiratio0; unsigned long datagiratio0; unsigned long datafwsratio0; unsigned long datawrsratio0; unsigned long datauserank0delay; unsigned long datadldiff0; }; /** * Configure DDR CMD control registers */ void config_cmd_ctrl(const struct cmd_control *cmd); /** * Configure DDR DATA registers */ void config_ddr_data(int data_macrono, const struct ddr_data *data); /** * This structure represents the DDR io control on AM33XX devices. */ struct ddr_cmdtctrl { unsigned int resv1[1]; unsigned int cm0ioctl; unsigned int cm1ioctl; unsigned int cm2ioctl; unsigned int resv2[12]; unsigned int dt0ioctl; unsigned int dt1ioctl; }; /** * Configure DDR io control registers */ void config_io_ctrl(unsigned long val); struct ddr_ctrl { unsigned int ddrioctrl; unsigned int resv1[325]; unsigned int ddrckectrl; }; void config_ddr(unsigned int pll, unsigned int ioctrl, const struct ddr_data *data, const struct cmd_control *ctrl, const struct emif_regs *regs); #endif /* _DDR_DEFS_H */