2 * Timing and Organization details of the Elpida parts used in OMAP4
6 * Texas Instruments, <www.ti.com>
8 * Aneesh V <aneesh@ti.com>
10 * See file CREDITS for list of people who contributed to this
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License as
15 * published by the Free Software Foundation; either version 2 of
16 * the License, or (at your option) any later version.
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 #include <asm/arch/emif.h>
30 #include <asm/arch/sys_proto.h>
33 * This file provides details of the LPDDR2 SDRAM parts used on OMAP4430
34 * SDP and Panda. Since the parts used and geometry are identical for
35 * SDP and Panda for a given OMAP4 revision, this information is kept
36 * here instead of being in board directory. However the key functions
37 * exported are weakly linked so that they can be over-ridden in the board
38 * directory if there is a OMAP4 board in the future that uses a different
39 * memory device or geometry.
41 * For any new board with different memory devices over-ride one or more
42 * of the following functions as per the CONFIG flags you intend to enable:
43 * - emif_get_reg_dump()
44 * - emif_get_dmm_regs()
45 * - emif_get_device_details()
46 * - emif_get_device_timings()
49 static const struct emif_regs emif_regs_elpida_200_mhz_2cs = {
50 .sdram_config_init = 0x80000eb9,
51 .sdram_config = 0x80001ab9,
52 .ref_ctrl = 0x0000030c,
53 .sdram_tim1 = 0x08648311,
54 .sdram_tim2 = 0x101b06ca,
55 .sdram_tim3 = 0x0048a19f,
56 .read_idle_ctrl = 0x000501ff,
57 .zq_config = 0x500b3214,
58 .temp_alert_config = 0xd8016893,
59 .emif_ddr_phy_ctlr_1_init = 0x049ffff5,
60 .emif_ddr_phy_ctlr_1 = 0x049ff808
63 static const struct emif_regs emif_regs_elpida_380_mhz_1cs = {
64 .sdram_config_init = 0x80000eb1,
65 .sdram_config = 0x80001ab1,
66 .ref_ctrl = 0x000005cd,
67 .sdram_tim1 = 0x10cb0622,
68 .sdram_tim2 = 0x20350d52,
69 .sdram_tim3 = 0x00b1431f,
70 .read_idle_ctrl = 0x000501ff,
71 .zq_config = 0x500b3214,
72 .temp_alert_config = 0x58016893,
73 .emif_ddr_phy_ctlr_1_init = 0x049ffff5,
74 .emif_ddr_phy_ctlr_1 = 0x049ff418
77 const struct emif_regs emif_regs_elpida_400_mhz_2cs = {
78 .sdram_config_init = 0x80000eb9,
79 .sdram_config = 0x80001ab9,
80 .ref_ctrl = 0x00000618,
81 .sdram_tim1 = 0x10eb0662,
82 .sdram_tim2 = 0x20370dd2,
83 .sdram_tim3 = 0x00b1c33f,
84 .read_idle_ctrl = 0x000501ff,
85 .zq_config = 0xd00b3214,
86 .temp_alert_config = 0xd8016893,
87 .emif_ddr_phy_ctlr_1_init = 0x049ffff5,
88 .emif_ddr_phy_ctlr_1 = 0x049ff418
90 const struct dmm_lisa_map_regs lisa_map_2G_x_1_x_2 = {
91 .dmm_lisa_map_0 = 0xFF020100,
94 .dmm_lisa_map_3 = 0x80540300
97 const struct dmm_lisa_map_regs lisa_map_2G_x_2_x_2 = {
98 .dmm_lisa_map_0 = 0xFF020100,
101 .dmm_lisa_map_3 = 0x80640300
104 static void emif_get_reg_dump_sdp(u32 emif_nr, const struct emif_regs **regs)
106 u32 omap4_rev = omap_revision();
108 /* Same devices and geometry on both EMIFs */
109 if (omap4_rev == OMAP4430_ES1_0)
110 *regs = &emif_regs_elpida_380_mhz_1cs;
111 else if (omap4_rev == OMAP4430_ES2_0)
112 *regs = &emif_regs_elpida_200_mhz_2cs;
114 *regs = &emif_regs_elpida_400_mhz_2cs;
116 void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs)
117 __attribute__((weak, alias("emif_get_reg_dump_sdp")));
119 static void emif_get_dmm_regs_sdp(const struct dmm_lisa_map_regs
122 u32 omap_rev = omap_revision();
124 if (omap_rev == OMAP4430_ES1_0)
125 *dmm_lisa_regs = &lisa_map_2G_x_1_x_2;
127 *dmm_lisa_regs = &lisa_map_2G_x_2_x_2;
130 void emif_get_dmm_regs(const struct dmm_lisa_map_regs **dmm_lisa_regs)
131 __attribute__((weak, alias("emif_get_dmm_regs_sdp")));