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_START_EN (0x1)
29 #define PHY_DLL_LOCK_DIFF 0x0
30 #define DDR_CKE_CTRL_NORMAL 0x1
32 #define DDR2_EMIF_READ_LATENCY 0x100005 /* Enable Dynamic Power Down */
33 #define DDR2_EMIF_TIM1 0x0666B3C9
34 #define DDR2_EMIF_TIM2 0x243631CA
35 #define DDR2_EMIF_TIM3 0x0000033F
36 #define DDR2_EMIF_SDCFG 0x41805332
37 #define DDR2_EMIF_SDREF 0x0000081a
38 #define DDR2_DLL_LOCK_DIFF 0x0
39 #define DDR2_RATIO 0x80
40 #define DDR2_INVERT_CLKOUT 0x00
41 #define DDR2_RD_DQS 0x12
42 #define DDR2_WR_DQS 0x00
43 #define DDR2_PHY_WRLVL 0x00
44 #define DDR2_PHY_GATELVL 0x00
45 #define DDR2_PHY_WR_DATA 0x40
46 #define DDR2_PHY_FIFO_WE 0x80
47 #define DDR2_PHY_RANK0_DELAY 0x1
48 #define DDR2_IOCTRL_VALUE 0x18B
50 /* Micron MT41J128M16JT-125 */
51 #define DDR3_EMIF_READ_LATENCY 0x06
52 #define DDR3_EMIF_TIM1 0x0888A39B
53 #define DDR3_EMIF_TIM2 0x26337FDA
54 #define DDR3_EMIF_TIM3 0x501F830F
55 #define DDR3_EMIF_SDCFG 0x61C04AB2
56 #define DDR3_EMIF_SDREF 0x0000093B
57 #define DDR3_ZQ_CFG 0x50074BE4
58 #define DDR3_DLL_LOCK_DIFF 0x1
59 #define DDR3_RATIO 0x40
60 #define DDR3_INVERT_CLKOUT 0x1
61 #define DDR3_RD_DQS 0x3B
62 #define DDR3_WR_DQS 0x85
63 #define DDR3_PHY_WR_DATA 0xC1
64 #define DDR3_PHY_FIFO_WE 0x100
65 #define DDR3_IOCTRL_VALUE 0x18B
70 void config_sdram(const struct emif_regs *regs);
75 void set_sdram_timings(const struct emif_regs *regs);
80 void config_ddr_phy(const struct emif_regs *regs);
83 * This structure represents the DDR registers on AM33XX devices.
84 * We make use of DDR_PHY_BASE_ADDR2 to address the DATA1 registers that
85 * correspond to DATA1 registers defined here.
88 unsigned int resv0[7];
89 unsigned int cm0csratio; /* offset 0x01C */
90 unsigned int resv1[2];
91 unsigned int cm0dldiff; /* offset 0x028 */
92 unsigned int cm0iclkout; /* offset 0x02C */
93 unsigned int resv2[8];
94 unsigned int cm1csratio; /* offset 0x050 */
95 unsigned int resv3[2];
96 unsigned int cm1dldiff; /* offset 0x05C */
97 unsigned int cm1iclkout; /* offset 0x060 */
98 unsigned int resv4[8];
99 unsigned int cm2csratio; /* offset 0x084 */
100 unsigned int resv5[2];
101 unsigned int cm2dldiff; /* offset 0x090 */
102 unsigned int cm2iclkout; /* offset 0x094 */
103 unsigned int resv6[12];
104 unsigned int dt0rdsratio0; /* offset 0x0C8 */
105 unsigned int resv7[4];
106 unsigned int dt0wdsratio0; /* offset 0x0DC */
107 unsigned int resv8[4];
108 unsigned int dt0wiratio0; /* offset 0x0F0 */
110 unsigned int dt0wimode0; /* offset 0x0F8 */
111 unsigned int dt0giratio0; /* offset 0x0FC */
113 unsigned int dt0gimode0; /* offset 0x104 */
114 unsigned int dt0fwsratio0; /* offset 0x108 */
115 unsigned int resv11[4];
116 unsigned int dt0dqoffset; /* offset 0x11C */
117 unsigned int dt0wrsratio0; /* offset 0x120 */
118 unsigned int resv12[4];
119 unsigned int dt0rdelays0; /* offset 0x134 */
120 unsigned int dt0dldiff0; /* offset 0x138 */
124 * Encapsulates DDR CMD control registers.
127 unsigned long cmd0csratio;
128 unsigned long cmd0csforce;
129 unsigned long cmd0csdelay;
130 unsigned long cmd0dldiff;
131 unsigned long cmd0iclkout;
132 unsigned long cmd1csratio;
133 unsigned long cmd1csforce;
134 unsigned long cmd1csdelay;
135 unsigned long cmd1dldiff;
136 unsigned long cmd1iclkout;
137 unsigned long cmd2csratio;
138 unsigned long cmd2csforce;
139 unsigned long cmd2csdelay;
140 unsigned long cmd2dldiff;
141 unsigned long cmd2iclkout;
145 * Encapsulates DDR DATA registers.
148 unsigned long datardsratio0;
149 unsigned long datawdsratio0;
150 unsigned long datawiratio0;
151 unsigned long datagiratio0;
152 unsigned long datafwsratio0;
153 unsigned long datawrsratio0;
154 unsigned long datauserank0delay;
155 unsigned long datadldiff0;
159 * Configure DDR CMD control registers
161 void config_cmd_ctrl(const struct cmd_control *cmd);
164 * Configure DDR DATA registers
166 void config_ddr_data(int data_macrono, const struct ddr_data *data);
169 * This structure represents the DDR io control on AM33XX devices.
171 struct ddr_cmdtctrl {
172 unsigned int resv1[1];
173 unsigned int cm0ioctl;
174 unsigned int cm1ioctl;
175 unsigned int cm2ioctl;
176 unsigned int resv2[12];
177 unsigned int dt0ioctl;
178 unsigned int dt1ioctl;
182 * Configure DDR io control registers
184 void config_io_ctrl(unsigned long val);
187 unsigned int ddrioctrl;
188 unsigned int resv1[325];
189 unsigned int ddrckectrl;
192 void config_ddr(short ddr_type);
194 #endif /* _DDR_DEFS_H */