1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (C) 2014 Wandboard
4 * Author: Tungyi Lin <tungyilin1127@gmail.com>
5 * Richard Hu <hakahu@gmail.com>
6 */
7
8 #include <common.h>
9 #include <init.h>
10 #include <asm/arch/clock.h>
11 #include <asm/arch/imx-regs.h>
12 #include <asm/arch/iomux.h>
13 #include <asm/arch/mx6-pins.h>
14 #include <linux/delay.h>
15 #include <linux/errno.h>
16 #include <asm/gpio.h>
17 #include <asm/mach-imx/iomux-v3.h>
18 #include <asm/mach-imx/video.h>
19 #include <mmc.h>
20 #include <fsl_esdhc_imx.h>
21 #include <asm/arch/crm_regs.h>
22 #include <asm/io.h>
23 #include <asm/arch/sys_proto.h>
24 #include <spl.h>
25
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
ccgr_init(void)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
spl_dram_init_imx6qp_lpddr3(void)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
spl_dram_init(void)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
board_init_f(ulong dummy)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
428 #define USDHC1_CD_GPIO IMX_GPIO_NR(1, 2)
429 #define USDHC3_CD_GPIO IMX_GPIO_NR(3, 9)
430
431 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
432 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
433 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
434
435 static struct fsl_esdhc_cfg usdhc_cfg[2] = {
436 {USDHC3_BASE_ADDR},
437 {USDHC1_BASE_ADDR},
438 };
439
440 static iomux_v3_cfg_t const usdhc1_pads[] = {
441 IOMUX_PADS(PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
442 IOMUX_PADS(PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
443 IOMUX_PADS(PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
444 IOMUX_PADS(PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
445 IOMUX_PADS(PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
446 IOMUX_PADS(PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
447 /* Carrier MicroSD Card Detect */
448 IOMUX_PADS(PAD_GPIO_2__GPIO1_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL)),
449 };
450
451 static iomux_v3_cfg_t const usdhc3_pads[] = {
452 IOMUX_PADS(PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
453 IOMUX_PADS(PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
454 IOMUX_PADS(PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
455 IOMUX_PADS(PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
456 IOMUX_PADS(PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
457 IOMUX_PADS(PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)),
458 /* SOM MicroSD Card Detect */
459 IOMUX_PADS(PAD_EIM_DA9__GPIO3_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL)),
460 };
461
board_mmc_getcd(struct mmc * mmc)462 int board_mmc_getcd(struct mmc *mmc)
463 {
464 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
465 int ret = 0;
466
467 switch (cfg->esdhc_base) {
468 case USDHC1_BASE_ADDR:
469 ret = !gpio_get_value(USDHC1_CD_GPIO);
470 break;
471 case USDHC3_BASE_ADDR:
472 ret = !gpio_get_value(USDHC3_CD_GPIO);
473 break;
474 }
475
476 return ret;
477 }
478
board_mmc_init(struct bd_info * bis)479 int board_mmc_init(struct bd_info *bis)
480 {
481 int ret;
482 u32 index = 0;
483
484 /*
485 * Following map is done:
486 * (U-Boot device node) (Physical Port)
487 * mmc0 SOM MicroSD
488 * mmc1 Carrier board MicroSD
489 */
490 for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
491 switch (index) {
492 case 0:
493 SETUP_IOMUX_PADS(usdhc3_pads);
494 usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
495 usdhc_cfg[0].max_bus_width = 4;
496 gpio_direction_input(USDHC3_CD_GPIO);
497 break;
498 case 1:
499 SETUP_IOMUX_PADS(usdhc1_pads);
500 usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
501 usdhc_cfg[1].max_bus_width = 4;
502 gpio_direction_input(USDHC1_CD_GPIO);
503 break;
504 default:
505 printf("Warning: you configured more USDHC controllers"
506 "(%d) then supported by the board (%d)\n",
507 index + 1, CONFIG_SYS_FSL_USDHC_NUM);
508 return -EINVAL;
509 }
510
511 ret = fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
512 if (ret)
513 return ret;
514 }
515
516 return 0;
517 }
518