Merge git://git.denx.de/u-boot-spi
[platform/kernel/u-boot.git] / board / wandboard / spl.c
1 /*
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 <linux/errno.h>
13 #include <asm/gpio.h>
14 #include <asm/mach-imx/iomux-v3.h>
15 #include <asm/mach-imx/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
23 DECLARE_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 #define IMX6QP_DRIVE_STRENGTH           0x28
36
37 /* configure MX6Q/DUAL mmdc DDR io registers */
38 static struct mx6dq_iomux_ddr_regs mx6dq_ddr_ioregs = {
39         .dram_sdclk_0 = IMX6DQ_DRIVE_STRENGTH,
40         .dram_sdclk_1 = IMX6DQ_DRIVE_STRENGTH,
41         .dram_cas = IMX6DQ_DRIVE_STRENGTH,
42         .dram_ras = IMX6DQ_DRIVE_STRENGTH,
43         .dram_reset = IMX6DQ_DRIVE_STRENGTH,
44         .dram_sdcke0 = IMX6DQ_DRIVE_STRENGTH,
45         .dram_sdcke1 = IMX6DQ_DRIVE_STRENGTH,
46         .dram_sdba2 = 0x00000000,
47         .dram_sdodt0 = IMX6DQ_DRIVE_STRENGTH,
48         .dram_sdodt1 = IMX6DQ_DRIVE_STRENGTH,
49         .dram_sdqs0 = IMX6DQ_DRIVE_STRENGTH,
50         .dram_sdqs1 = IMX6DQ_DRIVE_STRENGTH,
51         .dram_sdqs2 = IMX6DQ_DRIVE_STRENGTH,
52         .dram_sdqs3 = IMX6DQ_DRIVE_STRENGTH,
53         .dram_sdqs4 = IMX6DQ_DRIVE_STRENGTH,
54         .dram_sdqs5 = IMX6DQ_DRIVE_STRENGTH,
55         .dram_sdqs6 = IMX6DQ_DRIVE_STRENGTH,
56         .dram_sdqs7 = IMX6DQ_DRIVE_STRENGTH,
57         .dram_dqm0 = IMX6DQ_DRIVE_STRENGTH,
58         .dram_dqm1 = IMX6DQ_DRIVE_STRENGTH,
59         .dram_dqm2 = IMX6DQ_DRIVE_STRENGTH,
60         .dram_dqm3 = IMX6DQ_DRIVE_STRENGTH,
61         .dram_dqm4 = IMX6DQ_DRIVE_STRENGTH,
62         .dram_dqm5 = IMX6DQ_DRIVE_STRENGTH,
63         .dram_dqm6 = IMX6DQ_DRIVE_STRENGTH,
64         .dram_dqm7 = IMX6DQ_DRIVE_STRENGTH,
65 };
66
67 /* configure MX6QP mmdc DDR io registers */
68 static struct mx6dq_iomux_ddr_regs mx6qp_ddr_ioregs = {
69         .dram_sdclk_0 = IMX6QP_DRIVE_STRENGTH,
70         .dram_sdclk_1 = IMX6QP_DRIVE_STRENGTH,
71         .dram_cas = IMX6QP_DRIVE_STRENGTH,
72         .dram_ras = IMX6QP_DRIVE_STRENGTH,
73         .dram_reset = IMX6QP_DRIVE_STRENGTH,
74         .dram_sdcke0 = IMX6QP_DRIVE_STRENGTH,
75         .dram_sdcke1 = IMX6QP_DRIVE_STRENGTH,
76         .dram_sdba2 = 0x00000000,
77         .dram_sdodt0 = IMX6QP_DRIVE_STRENGTH,
78         .dram_sdodt1 = IMX6QP_DRIVE_STRENGTH,
79         .dram_sdqs0 = IMX6QP_DRIVE_STRENGTH,
80         .dram_sdqs1 = IMX6QP_DRIVE_STRENGTH,
81         .dram_sdqs2 = IMX6QP_DRIVE_STRENGTH,
82         .dram_sdqs3 = IMX6QP_DRIVE_STRENGTH,
83         .dram_sdqs4 = IMX6QP_DRIVE_STRENGTH,
84         .dram_sdqs5 = IMX6QP_DRIVE_STRENGTH,
85         .dram_sdqs6 = IMX6QP_DRIVE_STRENGTH,
86         .dram_sdqs7 = IMX6QP_DRIVE_STRENGTH,
87         .dram_dqm0 = IMX6QP_DRIVE_STRENGTH,
88         .dram_dqm1 = IMX6QP_DRIVE_STRENGTH,
89         .dram_dqm2 = IMX6QP_DRIVE_STRENGTH,
90         .dram_dqm3 = IMX6QP_DRIVE_STRENGTH,
91         .dram_dqm4 = IMX6QP_DRIVE_STRENGTH,
92         .dram_dqm5 = IMX6QP_DRIVE_STRENGTH,
93         .dram_dqm6 = IMX6QP_DRIVE_STRENGTH,
94         .dram_dqm7 = IMX6QP_DRIVE_STRENGTH,
95 };
96
97 /* configure MX6Q/DUAL mmdc GRP io registers */
98 static struct mx6dq_iomux_grp_regs mx6dq_grp_ioregs = {
99         .grp_ddr_type = 0x000c0000,
100         .grp_ddrmode_ctl = 0x00020000,
101         .grp_ddrpke = 0x00000000,
102         .grp_addds = IMX6DQ_DRIVE_STRENGTH,
103         .grp_ctlds = IMX6DQ_DRIVE_STRENGTH,
104         .grp_ddrmode = 0x00020000,
105         .grp_b0ds = IMX6DQ_DRIVE_STRENGTH,
106         .grp_b1ds = IMX6DQ_DRIVE_STRENGTH,
107         .grp_b2ds = IMX6DQ_DRIVE_STRENGTH,
108         .grp_b3ds = IMX6DQ_DRIVE_STRENGTH,
109         .grp_b4ds = IMX6DQ_DRIVE_STRENGTH,
110         .grp_b5ds = IMX6DQ_DRIVE_STRENGTH,
111         .grp_b6ds = IMX6DQ_DRIVE_STRENGTH,
112         .grp_b7ds = IMX6DQ_DRIVE_STRENGTH,
113 };
114
115 /* configure MX6QP mmdc GRP io registers */
116 static struct mx6dq_iomux_grp_regs mx6qp_grp_ioregs = {
117         .grp_ddr_type = 0x000c0000,
118         .grp_ddrmode_ctl = 0x00020000,
119         .grp_ddrpke = 0x00000000,
120         .grp_addds = IMX6QP_DRIVE_STRENGTH,
121         .grp_ctlds = IMX6QP_DRIVE_STRENGTH,
122         .grp_ddrmode = 0x00020000,
123         .grp_b0ds = IMX6QP_DRIVE_STRENGTH,
124         .grp_b1ds = IMX6QP_DRIVE_STRENGTH,
125         .grp_b2ds = IMX6QP_DRIVE_STRENGTH,
126         .grp_b3ds = IMX6QP_DRIVE_STRENGTH,
127         .grp_b4ds = IMX6QP_DRIVE_STRENGTH,
128         .grp_b5ds = IMX6QP_DRIVE_STRENGTH,
129         .grp_b6ds = IMX6QP_DRIVE_STRENGTH,
130         .grp_b7ds = IMX6QP_DRIVE_STRENGTH,
131 };
132
133 /* configure MX6SOLO/DUALLITE mmdc DDR io registers */
134 struct mx6sdl_iomux_ddr_regs mx6sdl_ddr_ioregs = {
135         .dram_sdclk_0 = IMX6SDL_DRIVE_STRENGTH,
136         .dram_sdclk_1 = IMX6SDL_DRIVE_STRENGTH,
137         .dram_cas = IMX6SDL_DRIVE_STRENGTH,
138         .dram_ras = IMX6SDL_DRIVE_STRENGTH,
139         .dram_reset = IMX6SDL_DRIVE_STRENGTH,
140         .dram_sdcke0 = IMX6SDL_DRIVE_STRENGTH,
141         .dram_sdcke1 = IMX6SDL_DRIVE_STRENGTH,
142         .dram_sdba2 = 0x00000000,
143         .dram_sdodt0 = IMX6SDL_DRIVE_STRENGTH,
144         .dram_sdodt1 = IMX6SDL_DRIVE_STRENGTH,
145         .dram_sdqs0 = IMX6SDL_DRIVE_STRENGTH,
146         .dram_sdqs1 = IMX6SDL_DRIVE_STRENGTH,
147         .dram_sdqs2 = IMX6SDL_DRIVE_STRENGTH,
148         .dram_sdqs3 = IMX6SDL_DRIVE_STRENGTH,
149         .dram_sdqs4 = IMX6SDL_DRIVE_STRENGTH,
150         .dram_sdqs5 = IMX6SDL_DRIVE_STRENGTH,
151         .dram_sdqs6 = IMX6SDL_DRIVE_STRENGTH,
152         .dram_sdqs7 = IMX6SDL_DRIVE_STRENGTH,
153         .dram_dqm0 = IMX6SDL_DRIVE_STRENGTH,
154         .dram_dqm1 = IMX6SDL_DRIVE_STRENGTH,
155         .dram_dqm2 = IMX6SDL_DRIVE_STRENGTH,
156         .dram_dqm3 = IMX6SDL_DRIVE_STRENGTH,
157         .dram_dqm4 = IMX6SDL_DRIVE_STRENGTH,
158         .dram_dqm5 = IMX6SDL_DRIVE_STRENGTH,
159         .dram_dqm6 = IMX6SDL_DRIVE_STRENGTH,
160         .dram_dqm7 = IMX6SDL_DRIVE_STRENGTH,
161 };
162
163 /* configure MX6SOLO/DUALLITE mmdc GRP io registers */
164 struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = {
165         .grp_ddr_type = 0x000c0000,
166         .grp_ddrmode_ctl = 0x00020000,
167         .grp_ddrpke = 0x00000000,
168         .grp_addds = IMX6SDL_DRIVE_STRENGTH,
169         .grp_ctlds = IMX6SDL_DRIVE_STRENGTH,
170         .grp_ddrmode = 0x00020000,
171         .grp_b0ds = IMX6SDL_DRIVE_STRENGTH,
172         .grp_b1ds = IMX6SDL_DRIVE_STRENGTH,
173         .grp_b2ds = IMX6SDL_DRIVE_STRENGTH,
174         .grp_b3ds = IMX6SDL_DRIVE_STRENGTH,
175         .grp_b4ds = IMX6SDL_DRIVE_STRENGTH,
176         .grp_b5ds = IMX6SDL_DRIVE_STRENGTH,
177         .grp_b6ds = IMX6SDL_DRIVE_STRENGTH,
178         .grp_b7ds = IMX6SDL_DRIVE_STRENGTH,
179 };
180
181 /* H5T04G63AFR-PB */
182 static struct mx6_ddr3_cfg h5t04g63afr = {
183         .mem_speed = 1600,
184         .density = 4,
185         .width = 16,
186         .banks = 8,
187         .rowaddr = 15,
188         .coladdr = 10,
189         .pagesz = 2,
190         .trcd = 1375,
191         .trcmin = 4875,
192         .trasmin = 3500,
193 };
194
195 /* H5TQ2G63DFR-H9 */
196 static struct mx6_ddr3_cfg h5tq2g63dfr = {
197         .mem_speed = 1333,
198         .density = 2,
199         .width = 16,
200         .banks = 8,
201         .rowaddr = 14,
202         .coladdr = 10,
203         .pagesz = 2,
204         .trcd = 1350,
205         .trcmin = 4950,
206         .trasmin = 3600,
207 };
208
209 static struct mx6_mmdc_calibration mx6q_2g_mmdc_calib = {
210         .p0_mpwldectrl0 = 0x001f001f,
211         .p0_mpwldectrl1 = 0x001f001f,
212         .p1_mpwldectrl0 = 0x001f001f,
213         .p1_mpwldectrl1 = 0x001f001f,
214         .p0_mpdgctrl0 = 0x4301030d,
215         .p0_mpdgctrl1 = 0x03020277,
216         .p1_mpdgctrl0 = 0x4300030a,
217         .p1_mpdgctrl1 = 0x02780248,
218         .p0_mprddlctl = 0x4536393b,
219         .p1_mprddlctl = 0x36353441,
220         .p0_mpwrdlctl = 0x41414743,
221         .p1_mpwrdlctl = 0x462f453f,
222 };
223
224 /* DDR 64bit 2GB */
225 static struct mx6_ddr_sysinfo mem_q = {
226         .dsize          = 2,
227         .cs1_mirror     = 0,
228         /* config for full 4GB range so that get_mem_size() works */
229         .cs_density     = 32,
230         .ncs            = 1,
231         .bi_on          = 1,
232         .rtt_nom        = 1,
233         .rtt_wr         = 0,
234         .ralat          = 5,
235         .walat          = 0,
236         .mif3_mode      = 3,
237         .rst_to_cke     = 0x23,
238         .sde_to_rst     = 0x10,
239         .refsel = 1,    /* Refresh cycles at 32KHz */
240         .refr = 3,      /* 4 refresh commands per refresh cycle */
241 };
242
243 static struct mx6_mmdc_calibration mx6dl_1g_mmdc_calib = {
244         .p0_mpwldectrl0 = 0x001f001f,
245         .p0_mpwldectrl1 = 0x001f001f,
246         .p1_mpwldectrl0 = 0x001f001f,
247         .p1_mpwldectrl1 = 0x001f001f,
248         .p0_mpdgctrl0 = 0x420e020e,
249         .p0_mpdgctrl1 = 0x02000200,
250         .p1_mpdgctrl0 = 0x42020202,
251         .p1_mpdgctrl1 = 0x01720172,
252         .p0_mprddlctl = 0x494c4f4c,
253         .p1_mprddlctl = 0x4a4c4c49,
254         .p0_mpwrdlctl = 0x3f3f3133,
255         .p1_mpwrdlctl = 0x39373f2e,
256 };
257
258 static struct mx6_mmdc_calibration mx6s_512m_mmdc_calib = {
259         .p0_mpwldectrl0 = 0x0040003c,
260         .p0_mpwldectrl1 = 0x0032003e,
261         .p0_mpdgctrl0 = 0x42350231,
262         .p0_mpdgctrl1 = 0x021a0218,
263         .p0_mprddlctl = 0x4b4b4e49,
264         .p0_mpwrdlctl = 0x3f3f3035,
265 };
266
267 /* DDR 64bit 1GB */
268 static struct mx6_ddr_sysinfo mem_dl = {
269         .dsize          = 2,
270         .cs1_mirror     = 0,
271         /* config for full 4GB range so that get_mem_size() works */
272         .cs_density     = 32,
273         .ncs            = 1,
274         .bi_on          = 1,
275         .rtt_nom        = 1,
276         .rtt_wr         = 0,
277         .ralat          = 5,
278         .walat          = 0,
279         .mif3_mode      = 3,
280         .rst_to_cke     = 0x23,
281         .sde_to_rst     = 0x10,
282         .refsel = 1,    /* Refresh cycles at 32KHz */
283         .refr = 3,      /* 4 refresh commands per refresh cycle */
284 };
285
286 /* DDR 32bit 512MB */
287 static struct mx6_ddr_sysinfo mem_s = {
288         .dsize          = 1,
289         .cs1_mirror     = 0,
290         /* config for full 4GB range so that get_mem_size() works */
291         .cs_density     = 32,
292         .ncs            = 1,
293         .bi_on          = 1,
294         .rtt_nom        = 1,
295         .rtt_wr         = 0,
296         .ralat          = 5,
297         .walat          = 0,
298         .mif3_mode      = 3,
299         .rst_to_cke     = 0x23,
300         .sde_to_rst     = 0x10,
301         .refsel = 1,    /* Refresh cycles at 32KHz */
302         .refr = 3,      /* 4 refresh commands per refresh cycle */
303 };
304
305 static void ccgr_init(void)
306 {
307         struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
308
309         writel(0x00C03F3F, &ccm->CCGR0);
310         writel(0x0030FC03, &ccm->CCGR1);
311         writel(0x0FFFC000, &ccm->CCGR2);
312         writel(0x3FF03000, &ccm->CCGR3);
313         writel(0x00FFF300, &ccm->CCGR4);
314         writel(0x0F0000C3, &ccm->CCGR5);
315         writel(0x000003FF, &ccm->CCGR6);
316 }
317
318 static void spl_dram_init_imx6qp_lpddr3(void)
319 {
320         /* MMDC0_MDSCR set the Configuration request bit during MMDC set up */
321         writel(0x00008000, MMDC_P0_BASE_ADDR + 0x01c);
322         /* Calibrations - ZQ */
323         writel(0xa1390003, MMDC_P0_BASE_ADDR + 0x800);
324         /* write leveling */
325         writel(0x00060004, MMDC_P0_BASE_ADDR + 0x80c);
326         writel(0x000B0004, MMDC_P0_BASE_ADDR + 0x810);
327         writel(0x00000004, MMDC_P1_BASE_ADDR + 0x80c);
328         writel(0x00000000, MMDC_P1_BASE_ADDR + 0x810);
329         /*
330          * DQS gating, read delay, write delay calibration values
331          * based on calibration compare of 0x00ffff00
332          */
333         writel(0x03040314, MMDC_P0_BASE_ADDR + 0x83c);
334         writel(0x03080300, MMDC_P0_BASE_ADDR + 0x840);
335         writel(0x03000310, MMDC_P1_BASE_ADDR + 0x83c);
336         writel(0x0268023C, MMDC_P1_BASE_ADDR + 0x840);
337         writel(0x4034363A, MMDC_P0_BASE_ADDR + 0x848);
338         writel(0x36302C3C, MMDC_P1_BASE_ADDR + 0x848);
339         writel(0x3E3E4046, MMDC_P0_BASE_ADDR + 0x850);
340         writel(0x483A4844, MMDC_P1_BASE_ADDR + 0x850);
341         writel(0x33333333, MMDC_P0_BASE_ADDR + 0x81c);
342         writel(0x33333333, MMDC_P0_BASE_ADDR + 0x820);
343         writel(0x33333333, MMDC_P0_BASE_ADDR + 0x824);
344         writel(0x33333333, MMDC_P0_BASE_ADDR + 0x828);
345         writel(0x33333333, MMDC_P1_BASE_ADDR + 0x81c);
346         writel(0x33333333, MMDC_P1_BASE_ADDR + 0x820);
347         writel(0x33333333, MMDC_P1_BASE_ADDR + 0x824);
348         writel(0x33333333, MMDC_P1_BASE_ADDR + 0x828);
349         writel(0x24912489, MMDC_P0_BASE_ADDR + 0x8c0);
350         writel(0x24914452, MMDC_P1_BASE_ADDR + 0x8c0);
351         writel(0x00000800, MMDC_P0_BASE_ADDR + 0x8b8);
352         writel(0x00000800, MMDC_P1_BASE_ADDR + 0x8b8);
353         /* MMDC init: in DDR3, 64-bit mode, only MMDC0 is initiated */
354         writel(0x00020036, MMDC_P0_BASE_ADDR + 0x004);
355         writel(0x09444040, MMDC_P0_BASE_ADDR + 0x008);
356         writel(0x898E79A4, MMDC_P0_BASE_ADDR + 0x00c);
357         writel(0xDB538F64, MMDC_P0_BASE_ADDR + 0x010);
358         writel(0x01FF00DD, MMDC_P0_BASE_ADDR + 0x014);
359         writel(0x00011740, MMDC_P0_BASE_ADDR + 0x018);
360         writel(0x00008000, MMDC_P0_BASE_ADDR + 0x01c);
361         writel(0x000026D2, MMDC_P0_BASE_ADDR + 0x02c);
362         writel(0x008E1023, MMDC_P0_BASE_ADDR + 0x030);
363         writel(0x00000047, MMDC_P0_BASE_ADDR + 0x040);
364         writel(0x14420000, MMDC_P0_BASE_ADDR + 0x400);
365         writel(0x841A0000, MMDC_P0_BASE_ADDR + 0x000);
366         writel(0x00400c58, MMDC_P0_BASE_ADDR + 0x890);
367         /* add NOC DDR configuration */
368         writel(0x00000000, NOC_DDR_BASE_ADDR + 0x008);
369         writel(0x2871C39B, NOC_DDR_BASE_ADDR + 0x00c);
370         writel(0x000005B4, NOC_DDR_BASE_ADDR + 0x038);
371         writel(0x00000040, NOC_DDR_BASE_ADDR + 0x014);
372         writel(0x00000020, NOC_DDR_BASE_ADDR + 0x028);
373         writel(0x00000020, NOC_DDR_BASE_ADDR + 0x02c);
374         writel(0x02088032, MMDC_P0_BASE_ADDR + 0x01c);
375         writel(0x00008033, MMDC_P0_BASE_ADDR + 0x01c);
376         writel(0x00048031, MMDC_P0_BASE_ADDR + 0x01c);
377         writel(0x19308030, MMDC_P0_BASE_ADDR + 0x01c);
378         writel(0x04008040, MMDC_P0_BASE_ADDR + 0x01c);
379         writel(0x00007800, MMDC_P0_BASE_ADDR + 0x020);
380         writel(0x00022227, MMDC_P0_BASE_ADDR + 0x818);
381         writel(0x00022227, MMDC_P1_BASE_ADDR + 0x818);
382         writel(0x00025576, MMDC_P0_BASE_ADDR + 0x004);
383         writel(0x00011006, MMDC_P0_BASE_ADDR + 0x404);
384         writel(0x00000000, MMDC_P0_BASE_ADDR + 0x01c);
385 }
386
387 static void spl_dram_init(void)
388 {
389         if (is_mx6dqp()) {
390                 mx6dq_dram_iocfg(64, &mx6qp_ddr_ioregs, &mx6qp_grp_ioregs);
391                 spl_dram_init_imx6qp_lpddr3();
392         } else if (is_cpu_type(MXC_CPU_MX6SOLO)) {
393                 mx6sdl_dram_iocfg(32, &mx6sdl_ddr_ioregs, &mx6sdl_grp_ioregs);
394                 mx6_dram_cfg(&mem_s, &mx6s_512m_mmdc_calib, &h5tq2g63dfr);
395         } else if (is_cpu_type(MXC_CPU_MX6DL)) {
396                 mx6sdl_dram_iocfg(64, &mx6sdl_ddr_ioregs, &mx6sdl_grp_ioregs);
397                 mx6_dram_cfg(&mem_dl, &mx6dl_1g_mmdc_calib, &h5tq2g63dfr);
398         } else if (is_cpu_type(MXC_CPU_MX6Q)) {
399                 mx6dq_dram_iocfg(64, &mx6dq_ddr_ioregs, &mx6dq_grp_ioregs);
400                 mx6_dram_cfg(&mem_q, &mx6q_2g_mmdc_calib, &h5t04g63afr);
401         }
402
403         udelay(100);
404 }
405
406 void board_init_f(ulong dummy)
407 {
408         ccgr_init();
409
410         /* setup AIPS and disable watchdog */
411         arch_cpu_init();
412
413         gpr_init();
414
415         /* iomux */
416         board_early_init_f();
417
418         /* setup GP timer */
419         timer_init();
420
421         /* UART clocks enabled and gd valid - init serial console */
422         preloader_console_init();
423
424         /* DDR initialization */
425         spl_dram_init();
426 }
427 #endif