2 * Timing and Organization details of the ddr device parts used in OMAP5
6 * Texas Instruments, <www.ti.com>
8 * Aneesh V <aneesh@ti.com>
9 * Sricharan R <r.sricharan@ti.com>
11 * See file CREDITS for list of people who contributed to this
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
31 #include <asm/arch/sys_proto.h>
34 * This file provides details of the LPDDR2 SDRAM parts used on OMAP5
35 * EVM. Since the parts used and geometry are identical for
36 * evm for a given OMAP5 revision, this information is kept
37 * here instead of being in board directory. However the key functions
38 * exported are weakly linked so that they can be over-ridden in the board
39 * directory if there is a OMAP5 board in the future that uses a different
40 * memory device or geometry.
42 * For any new board with different memory devices over-ride one or more
43 * of the following functions as per the CONFIG flags you intend to enable:
44 * - emif_get_reg_dump()
45 * - emif_get_dmm_regs()
46 * - emif_get_device_details()
47 * - emif_get_device_timings()
50 #ifdef CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS
51 const struct emif_regs emif_regs_532_mhz_2cs = {
52 .sdram_config_init = 0x80800EBA,
53 .sdram_config = 0x808022BA,
54 .ref_ctrl = 0x0000081A,
55 .sdram_tim1 = 0x772F6873,
56 .sdram_tim2 = 0x304a129a,
57 .sdram_tim3 = 0x02f7e45f,
58 .read_idle_ctrl = 0x00050000,
59 .zq_config = 0x000b3215,
60 .temp_alert_config = 0x08000a05,
61 .emif_ddr_phy_ctlr_1_init = 0x0E28420d,
62 .emif_ddr_phy_ctlr_1 = 0x0E28420d,
63 .emif_ddr_ext_phy_ctrl_1 = 0x04020080,
64 .emif_ddr_ext_phy_ctrl_2 = 0x28C518A3,
65 .emif_ddr_ext_phy_ctrl_3 = 0x518A3146,
66 .emif_ddr_ext_phy_ctrl_4 = 0x0014628C,
67 .emif_ddr_ext_phy_ctrl_5 = 0x04010040
70 const struct emif_regs emif_regs_266_mhz_2cs = {
71 .sdram_config_init = 0x80800EBA,
72 .sdram_config = 0x808022BA,
73 .ref_ctrl = 0x0000040D,
74 .sdram_tim1 = 0x2A86B419,
75 .sdram_tim2 = 0x1025094A,
76 .sdram_tim3 = 0x026BA22F,
77 .read_idle_ctrl = 0x00050000,
78 .zq_config = 0x000b3215,
79 .temp_alert_config = 0x08000a05,
80 .emif_ddr_phy_ctlr_1_init = 0x0E28420d,
81 .emif_ddr_phy_ctlr_1 = 0x0E28420d,
82 .emif_ddr_ext_phy_ctrl_1 = 0x04020080,
83 .emif_ddr_ext_phy_ctrl_2 = 0x0A414829,
84 .emif_ddr_ext_phy_ctrl_3 = 0x14829052,
85 .emif_ddr_ext_phy_ctrl_4 = 0x000520A4,
86 .emif_ddr_ext_phy_ctrl_5 = 0x04010040
89 const struct emif_regs emif_regs_ddr3_532_mhz_1cs = {
90 .sdram_config_init = 0x61851B32,
91 .sdram_config = 0x61851B32,
92 .ref_ctrl = 0x00001035,
93 .sdram_tim1 = 0xCCCF36B3,
94 .sdram_tim2 = 0x308F7FDA,
95 .sdram_tim3 = 0x027F88A8,
96 .read_idle_ctrl = 0x00050000,
97 .zq_config = 0x0007190B,
98 .temp_alert_config = 0x00000000,
99 .emif_ddr_phy_ctlr_1_init = 0x0020420A,
100 .emif_ddr_phy_ctlr_1 = 0x0024420A,
101 .emif_ddr_ext_phy_ctrl_1 = 0x04040100,
102 .emif_ddr_ext_phy_ctrl_2 = 0x00000000,
103 .emif_ddr_ext_phy_ctrl_3 = 0x00000000,
104 .emif_ddr_ext_phy_ctrl_4 = 0x00000000,
105 .emif_ddr_ext_phy_ctrl_5 = 0x04010040,
106 .emif_rd_wr_lvl_rmp_win = 0x00000000,
107 .emif_rd_wr_lvl_rmp_ctl = 0x80000000,
108 .emif_rd_wr_lvl_ctl = 0x00000000,
109 .emif_rd_wr_exec_thresh = 0x00000305
112 const struct dmm_lisa_map_regs lisa_map_4G_x_2_x_2 = {
113 .dmm_lisa_map_0 = 0x0,
114 .dmm_lisa_map_1 = 0x0,
115 .dmm_lisa_map_2 = 0x80740300,
116 .dmm_lisa_map_3 = 0xFF020100
119 const u32 ext_phy_ctrl_const_base[EMIF_EXT_PHY_CTRL_CONST_REG] = {
141 const u32 ddr3_ext_phy_ctrl_const_base[EMIF_EXT_PHY_CTRL_CONST_REG] = {
163 static void emif_get_reg_dump_sdp(u32 emif_nr, const struct emif_regs **regs)
165 if (omap_revision() == OMAP5432_ES1_0)
166 *regs = &emif_regs_ddr3_532_mhz_1cs;
168 *regs = &emif_regs_532_mhz_2cs;
170 void emif_get_reg_dump(u32 emif_nr, const struct emif_regs **regs)
171 __attribute__((weak, alias("emif_get_reg_dump_sdp")));
173 static void emif_get_dmm_regs_sdp(const struct dmm_lisa_map_regs
176 *dmm_lisa_regs = &lisa_map_4G_x_2_x_2;
179 void emif_get_dmm_regs(const struct dmm_lisa_map_regs **dmm_lisa_regs)
180 __attribute__((weak, alias("emif_get_dmm_regs_sdp")));
184 static const struct lpddr2_device_details dev_4G_S4_details = {
185 .type = LPDDR2_TYPE_S4,
186 .density = LPDDR2_DENSITY_4Gb,
187 .io_width = LPDDR2_IO_WIDTH_32,
188 .manufacturer = LPDDR2_MANUFACTURER_SAMSUNG
191 static void emif_get_device_details_sdp(u32 emif_nr,
192 struct lpddr2_device_details *cs0_device_details,
193 struct lpddr2_device_details *cs1_device_details)
195 /* EMIF1 & EMIF2 have identical configuration */
196 *cs0_device_details = dev_4G_S4_details;
197 *cs1_device_details = dev_4G_S4_details;
200 void emif_get_device_details(u32 emif_nr,
201 struct lpddr2_device_details *cs0_device_details,
202 struct lpddr2_device_details *cs1_device_details)
203 __attribute__((weak, alias("emif_get_device_details_sdp")));
205 #endif /* CONFIG_SYS_EMIF_PRECALCULATED_TIMING_REGS */
207 void do_ext_phy_settings(u32 base, const struct emif_regs *regs)
209 u32 *ext_phy_ctrl_base = 0;
210 u32 *emif_ext_phy_ctrl_base = 0;
213 struct emif_reg_struct *emif = (struct emif_reg_struct *)base;
215 ext_phy_ctrl_base = (u32 *) &(regs->emif_ddr_ext_phy_ctrl_1);
216 emif_ext_phy_ctrl_base = (u32 *) &(emif->emif_ddr_ext_phy_ctrl_1);
218 /* Configure external phy control timing registers */
219 for (i = 0; i < EMIF_EXT_PHY_CTRL_TIMING_REG; i++) {
220 writel(*ext_phy_ctrl_base, emif_ext_phy_ctrl_base++);
221 /* Update shadow registers */
222 writel(*ext_phy_ctrl_base++, emif_ext_phy_ctrl_base++);
226 * external phy 6-24 registers do not change with
229 for (i = 0; i < EMIF_EXT_PHY_CTRL_CONST_REG; i++) {
230 writel(ext_phy_ctrl_const_base[i],
231 emif_ext_phy_ctrl_base++);
232 /* Update shadow registers */
233 writel(ext_phy_ctrl_const_base[i],
234 emif_ext_phy_ctrl_base++);
238 #ifndef CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS
239 static const struct lpddr2_ac_timings timings_jedec_532_mhz = {
240 .max_freq = 532000000,
262 static const struct lpddr2_min_tck min_tck = {
277 static const struct lpddr2_ac_timings *ac_timings[MAX_NUM_SPEEDBINS] = {
278 &timings_jedec_532_mhz
281 static const struct lpddr2_device_timings dev_4G_S4_timings = {
282 .ac_timings = ac_timings,
286 void emif_get_device_timings_sdp(u32 emif_nr,
287 const struct lpddr2_device_timings **cs0_device_timings,
288 const struct lpddr2_device_timings **cs1_device_timings)
290 /* Identical devices on EMIF1 & EMIF2 */
291 *cs0_device_timings = &dev_4G_S4_timings;
292 *cs1_device_timings = &dev_4G_S4_timings;
295 void emif_get_device_timings(u32 emif_nr,
296 const struct lpddr2_device_timings **cs0_device_timings,
297 const struct lpddr2_device_timings **cs1_device_timings)
298 __attribute__((weak, alias("emif_get_device_timings_sdp")));
300 #endif /* CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS */