6 * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE. See the
16 * GNU General Public License for more details.
22 #include <asm/arch/hardware.h>
25 /* AM335X EMIF Register values */
26 #define VTP_CTRL_READY (0x1 << 5)
27 #define VTP_CTRL_ENABLE (0x1 << 6)
28 #define VTP_CTRL_FILTER_SHIFT 1
29 #define VTP_CTRL_FILTER_MASK (0x7 << VTP_CTRL_FILTER_SHIFT)
30 #define VTP_CTRL_FILTER(n) (((n) << VTP_CTRL_FILTER_SHIFT) & VTP_CTRL_FILTER_MASK)
31 #define VTP_CTRL_START_EN (0x1 << 0)
32 #define PHY_DLL_LOCK_DIFF 0x0
33 #define DDR_CKE_CTRL_NORMAL 0x1
35 /* Micron MT47H128M16RT-25E */
36 #define MT47H128M16RT25E_EMIF_READ_LATENCY 0x100005
37 #define MT47H128M16RT25E_EMIF_TIM1 0x0666B3C9
38 #define MT47H128M16RT25E_EMIF_TIM2 0x243631CA
39 #define MT47H128M16RT25E_EMIF_TIM3 0x0000033F
40 #define MT47H128M16RT25E_EMIF_SDCFG 0x41805332
41 #define MT47H128M16RT25E_EMIF_SDREF 0x0000081a
42 #define MT47H128M16RT25E_DLL_LOCK_DIFF 0x0
43 #define MT47H128M16RT25E_RATIO 0x80
44 #define MT47H128M16RT25E_INVERT_CLKOUT 0x00
45 #define MT47H128M16RT25E_RD_DQS 0x12
46 #define MT47H128M16RT25E_WR_DQS 0x00
47 #define MT47H128M16RT25E_PHY_WRLVL 0x00
48 #define MT47H128M16RT25E_PHY_GATELVL 0x00
49 #define MT47H128M16RT25E_PHY_WR_DATA 0x40
50 #define MT47H128M16RT25E_PHY_FIFO_WE 0x80
51 #define MT47H128M16RT25E_PHY_RANK0_DELAY 0x1
52 #define MT47H128M16RT25E_IOCTRL_VALUE 0x18B
54 /* Micron MT41J128M16JT-125 */
55 #define MT41J128MJT125_EMIF_READ_LATENCY 0x06
56 #define MT41J128MJT125_EMIF_TIM1 0x0888A39B
57 #define MT41J128MJT125_EMIF_TIM2 0x26337FDA
58 #define MT41J128MJT125_EMIF_TIM3 0x501F830F
59 #define MT41J128MJT125_EMIF_SDCFG 0x61C04AB2
60 #define MT41J128MJT125_EMIF_SDREF 0x0000093B
61 #define MT41J128MJT125_ZQ_CFG 0x50074BE4
62 #define MT41J128MJT125_DLL_LOCK_DIFF 0x1
63 #define MT41J128MJT125_RATIO 0x40
64 #define MT41J128MJT125_INVERT_CLKOUT 0x1
65 #define MT41J128MJT125_RD_DQS 0x3B
66 #define MT41J128MJT125_WR_DQS 0x85
67 #define MT41J128MJT125_PHY_WR_DATA 0xC1
68 #define MT41J128MJT125_PHY_FIFO_WE 0x100
69 #define MT41J128MJT125_IOCTRL_VALUE 0x18B
74 void config_sdram(const struct emif_regs *regs);
79 void set_sdram_timings(const struct emif_regs *regs);
84 void config_ddr_phy(const struct emif_regs *regs);
87 * This structure represents the DDR registers on AM33XX devices.
88 * We make use of DDR_PHY_BASE_ADDR2 to address the DATA1 registers that
89 * correspond to DATA1 registers defined here.
92 unsigned int resv0[7];
93 unsigned int cm0csratio; /* offset 0x01C */
94 unsigned int resv1[2];
95 unsigned int cm0dldiff; /* offset 0x028 */
96 unsigned int cm0iclkout; /* offset 0x02C */
97 unsigned int resv2[8];
98 unsigned int cm1csratio; /* offset 0x050 */
99 unsigned int resv3[2];
100 unsigned int cm1dldiff; /* offset 0x05C */
101 unsigned int cm1iclkout; /* offset 0x060 */
102 unsigned int resv4[8];
103 unsigned int cm2csratio; /* offset 0x084 */
104 unsigned int resv5[2];
105 unsigned int cm2dldiff; /* offset 0x090 */
106 unsigned int cm2iclkout; /* offset 0x094 */
107 unsigned int resv6[12];
108 unsigned int dt0rdsratio0; /* offset 0x0C8 */
109 unsigned int resv7[4];
110 unsigned int dt0wdsratio0; /* offset 0x0DC */
111 unsigned int resv8[4];
112 unsigned int dt0wiratio0; /* offset 0x0F0 */
114 unsigned int dt0wimode0; /* offset 0x0F8 */
115 unsigned int dt0giratio0; /* offset 0x0FC */
117 unsigned int dt0gimode0; /* offset 0x104 */
118 unsigned int dt0fwsratio0; /* offset 0x108 */
119 unsigned int resv11[4];
120 unsigned int dt0dqoffset; /* offset 0x11C */
121 unsigned int dt0wrsratio0; /* offset 0x120 */
122 unsigned int resv12[4];
123 unsigned int dt0rdelays0; /* offset 0x134 */
124 unsigned int dt0dldiff0; /* offset 0x138 */
128 * Encapsulates DDR CMD control registers.
131 unsigned long cmd0csratio;
132 unsigned long cmd0csforce;
133 unsigned long cmd0csdelay;
134 unsigned long cmd0dldiff;
135 unsigned long cmd0iclkout;
136 unsigned long cmd1csratio;
137 unsigned long cmd1csforce;
138 unsigned long cmd1csdelay;
139 unsigned long cmd1dldiff;
140 unsigned long cmd1iclkout;
141 unsigned long cmd2csratio;
142 unsigned long cmd2csforce;
143 unsigned long cmd2csdelay;
144 unsigned long cmd2dldiff;
145 unsigned long cmd2iclkout;
149 * Encapsulates DDR DATA registers.
152 unsigned long datardsratio0;
153 unsigned long datawdsratio0;
154 unsigned long datawiratio0;
155 unsigned long datagiratio0;
156 unsigned long datafwsratio0;
157 unsigned long datawrsratio0;
158 unsigned long datauserank0delay;
159 unsigned long datadldiff0;
163 * Configure DDR CMD control registers
165 void config_cmd_ctrl(const struct cmd_control *cmd);
168 * Configure DDR DATA registers
170 void config_ddr_data(int data_macrono, const struct ddr_data *data);
173 * This structure represents the DDR io control on AM33XX devices.
175 struct ddr_cmdtctrl {
176 unsigned int cm0ioctl;
177 unsigned int cm1ioctl;
178 unsigned int cm2ioctl;
179 unsigned int resv2[12];
180 unsigned int dt0ioctl;
181 unsigned int dt1ioctl;
185 * Configure DDR io control registers
187 void config_io_ctrl(unsigned long val);
190 unsigned int ddrioctrl;
191 unsigned int resv1[325];
192 unsigned int ddrckectrl;
195 void config_ddr(unsigned int pll, unsigned int ioctrl,
196 const struct ddr_data *data, const struct cmd_control *ctrl,
197 const struct emif_regs *regs);
199 #endif /* _DDR_DEFS_H */