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Fabio Estevam0d1ea052015-05-11 20:50:22 -03001/*
2 * Copyright (C) 2014 Wandboard
3 * Author: Tungyi Lin <tungyilin1127@gmail.com>
4 * Richard Hu <hakahu@gmail.com>
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7
8#include <asm/arch/clock.h>
9#include <asm/arch/imx-regs.h>
10#include <asm/arch/iomux.h>
11#include <asm/arch/mx6-pins.h>
12#include <asm/errno.h>
13#include <asm/gpio.h>
14#include <asm/imx-common/iomux-v3.h>
15#include <asm/imx-common/video.h>
16#include <mmc.h>
17#include <fsl_esdhc.h>
18#include <asm/arch/crm_regs.h>
19#include <asm/io.h>
20#include <asm/arch/sys_proto.h>
21#include <spl.h>
22
23DECLARE_GLOBAL_DATA_PTR;
24
25#if defined(CONFIG_SPL_BUILD)
26#include <asm/arch/mx6-ddr.h>
27/*
28 * Driving strength:
29 * 0x30 == 40 Ohm
30 * 0x28 == 48 Ohm
31 */
32
33#define IMX6DQ_DRIVE_STRENGTH 0x30
34#define IMX6SDL_DRIVE_STRENGTH 0x28
35
36/* configure MX6Q/DUAL mmdc DDR io registers */
37static struct mx6dq_iomux_ddr_regs mx6dq_ddr_ioregs = {
38 .dram_sdclk_0 = IMX6DQ_DRIVE_STRENGTH,
39 .dram_sdclk_1 = IMX6DQ_DRIVE_STRENGTH,
40 .dram_cas = IMX6DQ_DRIVE_STRENGTH,
41 .dram_ras = IMX6DQ_DRIVE_STRENGTH,
42 .dram_reset = IMX6DQ_DRIVE_STRENGTH,
43 .dram_sdcke0 = IMX6DQ_DRIVE_STRENGTH,
44 .dram_sdcke1 = IMX6DQ_DRIVE_STRENGTH,
45 .dram_sdba2 = 0x00000000,
46 .dram_sdodt0 = IMX6DQ_DRIVE_STRENGTH,
47 .dram_sdodt1 = IMX6DQ_DRIVE_STRENGTH,
48 .dram_sdqs0 = IMX6DQ_DRIVE_STRENGTH,
49 .dram_sdqs1 = IMX6DQ_DRIVE_STRENGTH,
50 .dram_sdqs2 = IMX6DQ_DRIVE_STRENGTH,
51 .dram_sdqs3 = IMX6DQ_DRIVE_STRENGTH,
52 .dram_sdqs4 = IMX6DQ_DRIVE_STRENGTH,
53 .dram_sdqs5 = IMX6DQ_DRIVE_STRENGTH,
54 .dram_sdqs6 = IMX6DQ_DRIVE_STRENGTH,
55 .dram_sdqs7 = IMX6DQ_DRIVE_STRENGTH,
56 .dram_dqm0 = IMX6DQ_DRIVE_STRENGTH,
57 .dram_dqm1 = IMX6DQ_DRIVE_STRENGTH,
58 .dram_dqm2 = IMX6DQ_DRIVE_STRENGTH,
59 .dram_dqm3 = IMX6DQ_DRIVE_STRENGTH,
60 .dram_dqm4 = IMX6DQ_DRIVE_STRENGTH,
61 .dram_dqm5 = IMX6DQ_DRIVE_STRENGTH,
62 .dram_dqm6 = IMX6DQ_DRIVE_STRENGTH,
63 .dram_dqm7 = IMX6DQ_DRIVE_STRENGTH,
64};
65
66/* configure MX6Q/DUAL mmdc GRP io registers */
67static struct mx6dq_iomux_grp_regs mx6dq_grp_ioregs = {
68 .grp_ddr_type = 0x000c0000,
69 .grp_ddrmode_ctl = 0x00020000,
70 .grp_ddrpke = 0x00000000,
71 .grp_addds = IMX6DQ_DRIVE_STRENGTH,
72 .grp_ctlds = IMX6DQ_DRIVE_STRENGTH,
73 .grp_ddrmode = 0x00020000,
74 .grp_b0ds = IMX6DQ_DRIVE_STRENGTH,
75 .grp_b1ds = IMX6DQ_DRIVE_STRENGTH,
76 .grp_b2ds = IMX6DQ_DRIVE_STRENGTH,
77 .grp_b3ds = IMX6DQ_DRIVE_STRENGTH,
78 .grp_b4ds = IMX6DQ_DRIVE_STRENGTH,
79 .grp_b5ds = IMX6DQ_DRIVE_STRENGTH,
80 .grp_b6ds = IMX6DQ_DRIVE_STRENGTH,
81 .grp_b7ds = IMX6DQ_DRIVE_STRENGTH,
82};
83
84/* configure MX6SOLO/DUALLITE mmdc DDR io registers */
85struct mx6sdl_iomux_ddr_regs mx6sdl_ddr_ioregs = {
86 .dram_sdclk_0 = IMX6SDL_DRIVE_STRENGTH,
87 .dram_sdclk_1 = IMX6SDL_DRIVE_STRENGTH,
88 .dram_cas = IMX6SDL_DRIVE_STRENGTH,
89 .dram_ras = IMX6SDL_DRIVE_STRENGTH,
90 .dram_reset = IMX6SDL_DRIVE_STRENGTH,
91 .dram_sdcke0 = IMX6SDL_DRIVE_STRENGTH,
92 .dram_sdcke1 = IMX6SDL_DRIVE_STRENGTH,
93 .dram_sdba2 = 0x00000000,
94 .dram_sdodt0 = IMX6SDL_DRIVE_STRENGTH,
95 .dram_sdodt1 = IMX6SDL_DRIVE_STRENGTH,
96 .dram_sdqs0 = IMX6SDL_DRIVE_STRENGTH,
97 .dram_sdqs1 = IMX6SDL_DRIVE_STRENGTH,
98 .dram_sdqs2 = IMX6SDL_DRIVE_STRENGTH,
99 .dram_sdqs3 = IMX6SDL_DRIVE_STRENGTH,
100 .dram_sdqs4 = IMX6SDL_DRIVE_STRENGTH,
101 .dram_sdqs5 = IMX6SDL_DRIVE_STRENGTH,
102 .dram_sdqs6 = IMX6SDL_DRIVE_STRENGTH,
103 .dram_sdqs7 = IMX6SDL_DRIVE_STRENGTH,
104 .dram_dqm0 = IMX6SDL_DRIVE_STRENGTH,
105 .dram_dqm1 = IMX6SDL_DRIVE_STRENGTH,
106 .dram_dqm2 = IMX6SDL_DRIVE_STRENGTH,
107 .dram_dqm3 = IMX6SDL_DRIVE_STRENGTH,
108 .dram_dqm4 = IMX6SDL_DRIVE_STRENGTH,
109 .dram_dqm5 = IMX6SDL_DRIVE_STRENGTH,
110 .dram_dqm6 = IMX6SDL_DRIVE_STRENGTH,
111 .dram_dqm7 = IMX6SDL_DRIVE_STRENGTH,
112};
113
114/* configure MX6SOLO/DUALLITE mmdc GRP io registers */
115struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = {
116 .grp_ddr_type = 0x000c0000,
117 .grp_ddrmode_ctl = 0x00020000,
118 .grp_ddrpke = 0x00000000,
119 .grp_addds = IMX6SDL_DRIVE_STRENGTH,
120 .grp_ctlds = IMX6SDL_DRIVE_STRENGTH,
121 .grp_ddrmode = 0x00020000,
122 .grp_b0ds = IMX6SDL_DRIVE_STRENGTH,
123 .grp_b1ds = IMX6SDL_DRIVE_STRENGTH,
124 .grp_b2ds = IMX6SDL_DRIVE_STRENGTH,
125 .grp_b3ds = IMX6SDL_DRIVE_STRENGTH,
126 .grp_b4ds = IMX6SDL_DRIVE_STRENGTH,
127 .grp_b5ds = IMX6SDL_DRIVE_STRENGTH,
128 .grp_b6ds = IMX6SDL_DRIVE_STRENGTH,
129 .grp_b7ds = IMX6SDL_DRIVE_STRENGTH,
130};
131
132/* H5T04G63AFR-PB */
133static struct mx6_ddr3_cfg h5t04g63afr = {
134 .mem_speed = 1600,
135 .density = 4,
136 .width = 16,
137 .banks = 8,
138 .rowaddr = 15,
139 .coladdr = 10,
140 .pagesz = 2,
141 .trcd = 1375,
142 .trcmin = 4875,
143 .trasmin = 3500,
144};
145
146/* H5TQ2G63DFR-H9 */
147static struct mx6_ddr3_cfg h5tq2g63dfr = {
148 .mem_speed = 1333,
149 .density = 2,
150 .width = 16,
151 .banks = 8,
152 .rowaddr = 14,
153 .coladdr = 10,
154 .pagesz = 2,
155 .trcd = 1350,
156 .trcmin = 4950,
157 .trasmin = 3600,
158};
159
160static struct mx6_mmdc_calibration mx6q_2g_mmdc_calib = {
161 .p0_mpwldectrl0 = 0x001f001f,
162 .p0_mpwldectrl1 = 0x001f001f,
163 .p1_mpwldectrl0 = 0x001f001f,
164 .p1_mpwldectrl1 = 0x001f001f,
165 .p0_mpdgctrl0 = 0x4301030d,
166 .p0_mpdgctrl1 = 0x03020277,
167 .p1_mpdgctrl0 = 0x4300030a,
168 .p1_mpdgctrl1 = 0x02780248,
169 .p0_mprddlctl = 0x4536393b,
170 .p1_mprddlctl = 0x36353441,
171 .p0_mpwrdlctl = 0x41414743,
172 .p1_mpwrdlctl = 0x462f453f,
173};
174
175/* DDR 64bit 2GB */
176static struct mx6_ddr_sysinfo mem_q = {
177 .dsize = 2,
178 .cs1_mirror = 0,
179 /* config for full 4GB range so that get_mem_size() works */
180 .cs_density = 32,
181 .ncs = 1,
182 .bi_on = 1,
183 .rtt_nom = 1,
184 .rtt_wr = 0,
185 .ralat = 5,
186 .walat = 0,
187 .mif3_mode = 3,
188 .rst_to_cke = 0x23,
189 .sde_to_rst = 0x10,
190};
191
192static struct mx6_mmdc_calibration mx6dl_1g_mmdc_calib = {
193 .p0_mpwldectrl0 = 0x001f001f,
194 .p0_mpwldectrl1 = 0x001f001f,
195 .p1_mpwldectrl0 = 0x001f001f,
196 .p1_mpwldectrl1 = 0x001f001f,
197 .p0_mpdgctrl0 = 0x420e020e,
198 .p0_mpdgctrl1 = 0x02000200,
199 .p1_mpdgctrl0 = 0x42020202,
200 .p1_mpdgctrl1 = 0x01720172,
201 .p0_mprddlctl = 0x494c4f4c,
202 .p1_mprddlctl = 0x4a4c4c49,
203 .p0_mpwrdlctl = 0x3f3f3133,
204 .p1_mpwrdlctl = 0x39373f2e,
205};
206
207static struct mx6_mmdc_calibration mx6s_512m_mmdc_calib = {
208 .p0_mpwldectrl0 = 0x0040003c,
209 .p0_mpwldectrl1 = 0x0032003e,
210 .p0_mpdgctrl0 = 0x42350231,
211 .p0_mpdgctrl1 = 0x021a0218,
212 .p0_mprddlctl = 0x4b4b4e49,
213 .p0_mpwrdlctl = 0x3f3f3035,
214};
215
216/* DDR 64bit 1GB */
217static struct mx6_ddr_sysinfo mem_dl = {
218 .dsize = 2,
219 .cs1_mirror = 0,
220 /* config for full 4GB range so that get_mem_size() works */
221 .cs_density = 32,
222 .ncs = 1,
223 .bi_on = 1,
224 .rtt_nom = 1,
225 .rtt_wr = 0,
226 .ralat = 5,
227 .walat = 0,
228 .mif3_mode = 3,
229 .rst_to_cke = 0x23,
230 .sde_to_rst = 0x10,
231};
232
233/* DDR 32bit 512MB */
234static struct mx6_ddr_sysinfo mem_s = {
235 .dsize = 1,
236 .cs1_mirror = 0,
237 /* config for full 4GB range so that get_mem_size() works */
238 .cs_density = 32,
239 .ncs = 1,
240 .bi_on = 1,
241 .rtt_nom = 1,
242 .rtt_wr = 0,
243 .ralat = 5,
244 .walat = 0,
245 .mif3_mode = 3,
246 .rst_to_cke = 0x23,
247 .sde_to_rst = 0x10,
248};
249
250static void ccgr_init(void)
251{
252 struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
253
254 writel(0x00C03F3F, &ccm->CCGR0);
255 writel(0x0030FC03, &ccm->CCGR1);
256 writel(0x0FFFC000, &ccm->CCGR2);
257 writel(0x3FF00000, &ccm->CCGR3);
258 writel(0x00FFF300, &ccm->CCGR4);
259 writel(0x0F0000C3, &ccm->CCGR5);
260 writel(0x000003FF, &ccm->CCGR6);
261}
262
263static void gpr_init(void)
264{
265 struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR;
266
267 /* enable AXI cache for VDOA/VPU/IPU */
268 writel(0xF00000CF, &iomux->gpr[4]);
269 /* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */
270 writel(0x007F007F, &iomux->gpr[6]);
271 writel(0x007F007F, &iomux->gpr[7]);
272}
273
274static void spl_dram_init(void)
275{
276 if (is_cpu_type(MXC_CPU_MX6SOLO)) {
277 mx6sdl_dram_iocfg(32, &mx6sdl_ddr_ioregs, &mx6sdl_grp_ioregs);
278 mx6_dram_cfg(&mem_s, &mx6s_512m_mmdc_calib, &h5tq2g63dfr);
279 } else if (is_cpu_type(MXC_CPU_MX6DL)) {
280 mx6sdl_dram_iocfg(64, &mx6sdl_ddr_ioregs, &mx6sdl_grp_ioregs);
281 mx6_dram_cfg(&mem_dl, &mx6dl_1g_mmdc_calib, &h5tq2g63dfr);
282 } else if (is_cpu_type(MXC_CPU_MX6Q)) {
283 mx6dq_dram_iocfg(64, &mx6dq_ddr_ioregs, &mx6dq_grp_ioregs);
284 mx6_dram_cfg(&mem_q, &mx6q_2g_mmdc_calib, &h5t04g63afr);
285 }
286
287 udelay(100);
288}
289
290void board_init_f(ulong dummy)
291{
292 ccgr_init();
293
294 /* setup AIPS and disable watchdog */
295 arch_cpu_init();
296
297 gpr_init();
298
299 /* iomux */
300 board_early_init_f();
301
302 /* setup GP timer */
303 timer_init();
304
305 /* UART clocks enabled and gd valid - init serial console */
306 preloader_console_init();
307
308 /* DDR initialization */
309 spl_dram_init();
310
311 /* Clear the BSS. */
312 memset(__bss_start, 0, __bss_end - __bss_start);
313
314 /* load/boot image from boot device */
315 board_init_r(NULL, 0);
316}
317#endif