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d8de3c73 JT |
1 | /* |
2 | * Copyright (C) 2016 Amarula Solutions B.V. | |
3 | * Copyright (C) 2016 Engicam S.r.l. | |
4 | * Author: Jagan Teki <jagan@amarulasolutions.com> | |
5 | * | |
6 | * SPDX-License-Identifier: GPL-2.0+ | |
7 | */ | |
8 | ||
9 | #include <common.h> | |
10 | #include <spl.h> | |
11 | ||
12 | #include <asm/io.h> | |
13 | #include <asm/gpio.h> | |
14 | #include <linux/sizes.h> | |
15 | ||
16 | #include <asm/arch/clock.h> | |
17 | #include <asm/arch/crm_regs.h> | |
18 | #include <asm/arch/iomux.h> | |
19 | #include <asm/arch/mx6-ddr.h> | |
20 | #include <asm/arch/mx6-pins.h> | |
21 | #include <asm/arch/sys_proto.h> | |
22 | ||
23 | #include <asm/imx-common/iomux-v3.h> | |
24 | #include <asm/imx-common/video.h> | |
25 | ||
26 | DECLARE_GLOBAL_DATA_PTR; | |
27 | ||
28 | #define UART_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ | |
29 | PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \ | |
30 | PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) | |
31 | ||
a81b0fd6 JT |
32 | static iomux_v3_cfg_t const uart_pads[] = { |
33 | #ifdef CONFIG_MX6QDL | |
d8de3c73 JT |
34 | IOMUX_PADS(PAD_KEY_COL0__UART4_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)), |
35 | IOMUX_PADS(PAD_KEY_ROW0__UART4_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL)), | |
a81b0fd6 JT |
36 | #elif CONFIG_MX6UL |
37 | IOMUX_PADS(PAD_UART1_TX_DATA__UART1_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL)), | |
38 | IOMUX_PADS(PAD_UART1_RX_DATA__UART1_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL)), | |
39 | #endif | |
d8de3c73 JT |
40 | }; |
41 | ||
a81b0fd6 | 42 | #ifdef CONFIG_MX6QDL |
d8de3c73 JT |
43 | /* |
44 | * Driving strength: | |
45 | * 0x30 == 40 Ohm | |
46 | * 0x28 == 48 Ohm | |
47 | */ | |
48 | #define IMX6DQ_DRIVE_STRENGTH 0x30 | |
49 | #define IMX6SDL_DRIVE_STRENGTH 0x28 | |
50 | ||
51 | /* configure MX6Q/DUAL mmdc DDR io registers */ | |
52 | static struct mx6dq_iomux_ddr_regs mx6dq_ddr_ioregs = { | |
53 | .dram_sdqs0 = IMX6DQ_DRIVE_STRENGTH, | |
54 | .dram_sdqs1 = IMX6DQ_DRIVE_STRENGTH, | |
55 | .dram_sdqs2 = IMX6DQ_DRIVE_STRENGTH, | |
56 | .dram_sdqs3 = IMX6DQ_DRIVE_STRENGTH, | |
57 | .dram_sdqs4 = IMX6DQ_DRIVE_STRENGTH, | |
58 | .dram_sdqs5 = IMX6DQ_DRIVE_STRENGTH, | |
59 | .dram_sdqs6 = IMX6DQ_DRIVE_STRENGTH, | |
60 | .dram_sdqs7 = IMX6DQ_DRIVE_STRENGTH, | |
61 | .dram_dqm0 = IMX6DQ_DRIVE_STRENGTH, | |
62 | .dram_dqm1 = IMX6DQ_DRIVE_STRENGTH, | |
63 | .dram_dqm2 = IMX6DQ_DRIVE_STRENGTH, | |
64 | .dram_dqm3 = IMX6DQ_DRIVE_STRENGTH, | |
65 | .dram_dqm4 = IMX6DQ_DRIVE_STRENGTH, | |
66 | .dram_dqm5 = IMX6DQ_DRIVE_STRENGTH, | |
67 | .dram_dqm6 = IMX6DQ_DRIVE_STRENGTH, | |
68 | .dram_dqm7 = IMX6DQ_DRIVE_STRENGTH, | |
69 | .dram_cas = IMX6DQ_DRIVE_STRENGTH, | |
70 | .dram_ras = IMX6DQ_DRIVE_STRENGTH, | |
71 | .dram_sdclk_0 = IMX6DQ_DRIVE_STRENGTH, | |
72 | .dram_sdclk_1 = IMX6DQ_DRIVE_STRENGTH, | |
73 | .dram_reset = IMX6DQ_DRIVE_STRENGTH, | |
74 | .dram_sdcke0 = IMX6DQ_DRIVE_STRENGTH, | |
75 | .dram_sdcke1 = IMX6DQ_DRIVE_STRENGTH, | |
76 | .dram_sdba2 = 0x00000000, | |
77 | .dram_sdodt0 = IMX6DQ_DRIVE_STRENGTH, | |
78 | .dram_sdodt1 = IMX6DQ_DRIVE_STRENGTH, | |
79 | }; | |
80 | ||
81 | /* configure MX6Q/DUAL mmdc GRP io registers */ | |
82 | static struct mx6dq_iomux_grp_regs mx6dq_grp_ioregs = { | |
83 | .grp_b0ds = IMX6DQ_DRIVE_STRENGTH, | |
84 | .grp_b1ds = IMX6DQ_DRIVE_STRENGTH, | |
85 | .grp_b2ds = IMX6DQ_DRIVE_STRENGTH, | |
86 | .grp_b3ds = IMX6DQ_DRIVE_STRENGTH, | |
87 | .grp_b4ds = IMX6DQ_DRIVE_STRENGTH, | |
88 | .grp_b5ds = IMX6DQ_DRIVE_STRENGTH, | |
89 | .grp_b6ds = IMX6DQ_DRIVE_STRENGTH, | |
90 | .grp_b7ds = IMX6DQ_DRIVE_STRENGTH, | |
91 | .grp_addds = IMX6DQ_DRIVE_STRENGTH, | |
92 | .grp_ddrmode_ctl = 0x00020000, | |
93 | .grp_ddrpke = 0x00000000, | |
94 | .grp_ddrmode = 0x00020000, | |
95 | .grp_ctlds = IMX6DQ_DRIVE_STRENGTH, | |
96 | .grp_ddr_type = 0x000c0000, | |
97 | }; | |
98 | ||
99 | /* configure MX6SOLO/DUALLITE mmdc DDR io registers */ | |
100 | struct mx6sdl_iomux_ddr_regs mx6sdl_ddr_ioregs = { | |
101 | .dram_sdclk_0 = IMX6SDL_DRIVE_STRENGTH, | |
102 | .dram_sdclk_1 = IMX6SDL_DRIVE_STRENGTH, | |
103 | .dram_cas = IMX6SDL_DRIVE_STRENGTH, | |
104 | .dram_ras = IMX6SDL_DRIVE_STRENGTH, | |
105 | .dram_reset = IMX6SDL_DRIVE_STRENGTH, | |
106 | .dram_sdcke0 = IMX6SDL_DRIVE_STRENGTH, | |
107 | .dram_sdcke1 = IMX6SDL_DRIVE_STRENGTH, | |
108 | .dram_sdba2 = 0x00000000, | |
109 | .dram_sdodt0 = IMX6SDL_DRIVE_STRENGTH, | |
110 | .dram_sdodt1 = IMX6SDL_DRIVE_STRENGTH, | |
111 | .dram_sdqs0 = IMX6SDL_DRIVE_STRENGTH, | |
112 | .dram_sdqs1 = IMX6SDL_DRIVE_STRENGTH, | |
113 | .dram_sdqs2 = IMX6SDL_DRIVE_STRENGTH, | |
114 | .dram_sdqs3 = IMX6SDL_DRIVE_STRENGTH, | |
115 | .dram_sdqs4 = IMX6SDL_DRIVE_STRENGTH, | |
116 | .dram_sdqs5 = IMX6SDL_DRIVE_STRENGTH, | |
117 | .dram_sdqs6 = IMX6SDL_DRIVE_STRENGTH, | |
118 | .dram_sdqs7 = IMX6SDL_DRIVE_STRENGTH, | |
119 | .dram_dqm0 = IMX6SDL_DRIVE_STRENGTH, | |
120 | .dram_dqm1 = IMX6SDL_DRIVE_STRENGTH, | |
121 | .dram_dqm2 = IMX6SDL_DRIVE_STRENGTH, | |
122 | .dram_dqm3 = IMX6SDL_DRIVE_STRENGTH, | |
123 | .dram_dqm4 = IMX6SDL_DRIVE_STRENGTH, | |
124 | .dram_dqm5 = IMX6SDL_DRIVE_STRENGTH, | |
125 | .dram_dqm6 = IMX6SDL_DRIVE_STRENGTH, | |
126 | .dram_dqm7 = IMX6SDL_DRIVE_STRENGTH, | |
127 | }; | |
128 | ||
129 | /* configure MX6SOLO/DUALLITE mmdc GRP io registers */ | |
130 | struct mx6sdl_iomux_grp_regs mx6sdl_grp_ioregs = { | |
131 | .grp_ddr_type = 0x000c0000, | |
132 | .grp_ddrmode_ctl = 0x00020000, | |
133 | .grp_ddrpke = 0x00000000, | |
134 | .grp_addds = IMX6SDL_DRIVE_STRENGTH, | |
135 | .grp_ctlds = IMX6SDL_DRIVE_STRENGTH, | |
136 | .grp_ddrmode = 0x00020000, | |
137 | .grp_b0ds = IMX6SDL_DRIVE_STRENGTH, | |
138 | .grp_b1ds = IMX6SDL_DRIVE_STRENGTH, | |
139 | .grp_b2ds = IMX6SDL_DRIVE_STRENGTH, | |
140 | .grp_b3ds = IMX6SDL_DRIVE_STRENGTH, | |
141 | .grp_b4ds = IMX6SDL_DRIVE_STRENGTH, | |
142 | .grp_b5ds = IMX6SDL_DRIVE_STRENGTH, | |
143 | .grp_b6ds = IMX6SDL_DRIVE_STRENGTH, | |
144 | .grp_b7ds = IMX6SDL_DRIVE_STRENGTH, | |
145 | }; | |
146 | ||
147 | /* mt41j256 */ | |
148 | static struct mx6_ddr3_cfg mt41j256 = { | |
149 | .mem_speed = 1066, | |
150 | .density = 2, | |
151 | .width = 16, | |
152 | .banks = 8, | |
153 | .rowaddr = 13, | |
154 | .coladdr = 10, | |
155 | .pagesz = 2, | |
156 | .trcd = 1375, | |
157 | .trcmin = 4875, | |
158 | .trasmin = 3500, | |
159 | .SRT = 0, | |
160 | }; | |
161 | ||
162 | static struct mx6_mmdc_calibration mx6dq_mmdc_calib = { | |
163 | .p0_mpwldectrl0 = 0x000E0009, | |
164 | .p0_mpwldectrl1 = 0x0018000E, | |
165 | .p1_mpwldectrl0 = 0x00000007, | |
166 | .p1_mpwldectrl1 = 0x00000000, | |
167 | .p0_mpdgctrl0 = 0x43280334, | |
168 | .p0_mpdgctrl1 = 0x031C0314, | |
169 | .p1_mpdgctrl0 = 0x4318031C, | |
170 | .p1_mpdgctrl1 = 0x030C0258, | |
171 | .p0_mprddlctl = 0x3E343A40, | |
172 | .p1_mprddlctl = 0x383C3844, | |
173 | .p0_mpwrdlctl = 0x40404440, | |
174 | .p1_mpwrdlctl = 0x4C3E4446, | |
175 | }; | |
176 | ||
177 | /* DDR 64bit */ | |
178 | static struct mx6_ddr_sysinfo mem_q = { | |
179 | .ddr_type = DDR_TYPE_DDR3, | |
180 | .dsize = 2, | |
181 | .cs1_mirror = 0, | |
182 | /* config for full 4GB range so that get_mem_size() works */ | |
183 | .cs_density = 32, | |
184 | .ncs = 1, | |
185 | .bi_on = 1, | |
186 | .rtt_nom = 2, | |
187 | .rtt_wr = 2, | |
188 | .ralat = 5, | |
189 | .walat = 0, | |
190 | .mif3_mode = 3, | |
191 | .rst_to_cke = 0x23, | |
192 | .sde_to_rst = 0x10, | |
193 | }; | |
194 | ||
195 | static struct mx6_mmdc_calibration mx6dl_mmdc_calib = { | |
196 | .p0_mpwldectrl0 = 0x001F0024, | |
197 | .p0_mpwldectrl1 = 0x00110018, | |
198 | .p1_mpwldectrl0 = 0x001F0024, | |
199 | .p1_mpwldectrl1 = 0x00110018, | |
200 | .p0_mpdgctrl0 = 0x4230022C, | |
201 | .p0_mpdgctrl1 = 0x02180220, | |
202 | .p1_mpdgctrl0 = 0x42440248, | |
203 | .p1_mpdgctrl1 = 0x02300238, | |
204 | .p0_mprddlctl = 0x44444A48, | |
205 | .p1_mprddlctl = 0x46484A42, | |
206 | .p0_mpwrdlctl = 0x38383234, | |
207 | .p1_mpwrdlctl = 0x3C34362E, | |
208 | }; | |
209 | ||
210 | /* DDR 64bit 1GB */ | |
211 | static struct mx6_ddr_sysinfo mem_dl = { | |
212 | .dsize = 2, | |
213 | .cs1_mirror = 0, | |
214 | /* config for full 4GB range so that get_mem_size() works */ | |
215 | .cs_density = 32, | |
216 | .ncs = 1, | |
217 | .bi_on = 1, | |
218 | .rtt_nom = 1, | |
219 | .rtt_wr = 1, | |
220 | .ralat = 5, | |
221 | .walat = 0, | |
222 | .mif3_mode = 3, | |
223 | .rst_to_cke = 0x23, | |
224 | .sde_to_rst = 0x10, | |
225 | }; | |
226 | ||
227 | /* DDR 32bit 512MB */ | |
228 | static struct mx6_ddr_sysinfo mem_s = { | |
229 | .dsize = 1, | |
230 | .cs1_mirror = 0, | |
231 | /* config for full 4GB range so that get_mem_size() works */ | |
232 | .cs_density = 32, | |
233 | .ncs = 1, | |
234 | .bi_on = 1, | |
235 | .rtt_nom = 1, | |
236 | .rtt_wr = 1, | |
237 | .ralat = 5, | |
238 | .walat = 0, | |
239 | .mif3_mode = 3, | |
240 | .rst_to_cke = 0x23, | |
241 | .sde_to_rst = 0x10, | |
242 | }; | |
a81b0fd6 JT |
243 | #endif /* CONFIG_MX6QDL */ |
244 | ||
245 | #ifdef CONFIG_MX6UL | |
246 | static struct mx6ul_iomux_grp_regs mx6_grp_ioregs = { | |
247 | .grp_addds = 0x00000030, | |
248 | .grp_ddrmode_ctl = 0x00020000, | |
249 | .grp_b0ds = 0x00000030, | |
250 | .grp_ctlds = 0x00000030, | |
251 | .grp_b1ds = 0x00000030, | |
252 | .grp_ddrpke = 0x00000000, | |
253 | .grp_ddrmode = 0x00020000, | |
254 | .grp_ddr_type = 0x000c0000, | |
255 | }; | |
256 | ||
257 | static struct mx6ul_iomux_ddr_regs mx6_ddr_ioregs = { | |
258 | .dram_dqm0 = 0x00000030, | |
259 | .dram_dqm1 = 0x00000030, | |
260 | .dram_ras = 0x00000030, | |
261 | .dram_cas = 0x00000030, | |
262 | .dram_odt0 = 0x00000030, | |
263 | .dram_odt1 = 0x00000030, | |
264 | .dram_sdba2 = 0x00000000, | |
265 | .dram_sdclk_0 = 0x00000008, | |
266 | .dram_sdqs0 = 0x00000038, | |
267 | .dram_sdqs1 = 0x00000030, | |
268 | .dram_reset = 0x00000030, | |
269 | }; | |
270 | ||
271 | static struct mx6_mmdc_calibration mx6_mmcd_calib = { | |
272 | .p0_mpwldectrl0 = 0x00070007, | |
273 | .p0_mpdgctrl0 = 0x41490145, | |
274 | .p0_mprddlctl = 0x40404546, | |
275 | .p0_mpwrdlctl = 0x4040524D, | |
276 | }; | |
277 | ||
278 | struct mx6_ddr_sysinfo ddr_sysinfo = { | |
279 | .dsize = 0, | |
280 | .cs_density = 20, | |
281 | .ncs = 1, | |
282 | .cs1_mirror = 0, | |
283 | .rtt_wr = 2, | |
284 | .rtt_nom = 1, /* RTT_Nom = RZQ/2 */ | |
285 | .walat = 1, /* Write additional latency */ | |
286 | .ralat = 5, /* Read additional latency */ | |
287 | .mif3_mode = 3, /* Command prediction working mode */ | |
288 | .bi_on = 1, /* Bank interleaving enabled */ | |
289 | .sde_to_rst = 0x10, /* 14 cycles, 200us (JEDEC default) */ | |
290 | .rst_to_cke = 0x23, /* 33 cycles, 500us (JEDEC default) */ | |
291 | .ddr_type = DDR_TYPE_DDR3, | |
292 | }; | |
293 | ||
294 | static struct mx6_ddr3_cfg mem_ddr = { | |
295 | .mem_speed = 800, | |
296 | .density = 4, | |
297 | .width = 16, | |
298 | .banks = 8, | |
299 | #ifdef TARGET_MX6UL_ISIOT | |
300 | .rowaddr = 15, | |
301 | #else | |
302 | .rowaddr = 13, | |
303 | #endif | |
304 | .coladdr = 10, | |
305 | .pagesz = 2, | |
306 | .trcd = 1375, | |
307 | .trcmin = 4875, | |
308 | .trasmin = 3500, | |
309 | }; | |
310 | #endif /* CONFIG_MX6UL */ | |
d8de3c73 JT |
311 | |
312 | static void ccgr_init(void) | |
313 | { | |
314 | struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; | |
315 | ||
a81b0fd6 | 316 | #ifdef CONFIG_MX6QDL |
d8de3c73 JT |
317 | writel(0x00003F3F, &ccm->CCGR0); |
318 | writel(0x0030FC00, &ccm->CCGR1); | |
319 | writel(0x000FC000, &ccm->CCGR2); | |
320 | writel(0x3F300000, &ccm->CCGR3); | |
321 | writel(0xFF00F300, &ccm->CCGR4); | |
322 | writel(0x0F0000C3, &ccm->CCGR5); | |
323 | writel(0x000003CC, &ccm->CCGR6); | |
a81b0fd6 JT |
324 | #elif CONFIG_MX6UL |
325 | writel(0x00c03f3f, &ccm->CCGR0); | |
326 | writel(0xfcffff00, &ccm->CCGR1); | |
327 | writel(0x0cffffcc, &ccm->CCGR2); | |
328 | writel(0x3f3c3030, &ccm->CCGR3); | |
329 | writel(0xff00fffc, &ccm->CCGR4); | |
330 | writel(0x033f30ff, &ccm->CCGR5); | |
331 | writel(0x00c00fff, &ccm->CCGR6); | |
332 | #endif | |
d8de3c73 JT |
333 | } |
334 | ||
335 | static void gpr_init(void) | |
336 | { | |
337 | struct iomuxc *iomux = (struct iomuxc *)IOMUXC_BASE_ADDR; | |
338 | ||
339 | /* enable AXI cache for VDOA/VPU/IPU */ | |
340 | writel(0xF00000CF, &iomux->gpr[4]); | |
341 | /* set IPU AXI-id0 Qos=0xf(bypass) AXI-id1 Qos=0x7 */ | |
342 | writel(0x007F007F, &iomux->gpr[6]); | |
343 | writel(0x007F007F, &iomux->gpr[7]); | |
344 | } | |
345 | ||
346 | static void spl_dram_init(void) | |
347 | { | |
a81b0fd6 | 348 | #ifdef CONFIG_MX6QDL |
d8de3c73 JT |
349 | if (is_mx6solo()) { |
350 | mx6sdl_dram_iocfg(32, &mx6sdl_ddr_ioregs, &mx6sdl_grp_ioregs); | |
351 | mx6_dram_cfg(&mem_s, &mx6dl_mmdc_calib, &mt41j256); | |
352 | } else if (is_mx6dl()) { | |
353 | mx6sdl_dram_iocfg(64, &mx6sdl_ddr_ioregs, &mx6sdl_grp_ioregs); | |
354 | mx6_dram_cfg(&mem_dl, &mx6dl_mmdc_calib, &mt41j256); | |
355 | } else if (is_mx6dq()) { | |
356 | mx6dq_dram_iocfg(64, &mx6dq_ddr_ioregs, &mx6dq_grp_ioregs); | |
357 | mx6_dram_cfg(&mem_q, &mx6dq_mmdc_calib, &mt41j256); | |
358 | } | |
a81b0fd6 JT |
359 | #elif CONFIG_MX6UL |
360 | mx6ul_dram_iocfg(mem_ddr.width, &mx6_ddr_ioregs, &mx6_grp_ioregs); | |
361 | mx6_dram_cfg(&ddr_sysinfo, &mx6_mmcd_calib, &mem_ddr); | |
362 | #endif | |
d8de3c73 JT |
363 | |
364 | udelay(100); | |
365 | } | |
366 | ||
367 | void board_init_f(ulong dummy) | |
368 | { | |
369 | ccgr_init(); | |
370 | ||
371 | /* setup AIPS and disable watchdog */ | |
372 | arch_cpu_init(); | |
373 | ||
374 | gpr_init(); | |
375 | ||
376 | /* iomux */ | |
a81b0fd6 | 377 | SETUP_IOMUX_PADS(uart_pads); |
d8de3c73 JT |
378 | |
379 | /* setup GP timer */ | |
380 | timer_init(); | |
381 | ||
382 | /* UART clocks enabled and gd valid - init serial console */ | |
383 | preloader_console_init(); | |
384 | ||
385 | /* DDR initialization */ | |
386 | spl_dram_init(); | |
387 | ||
388 | /* Clear the BSS. */ | |
389 | memset(__bss_start, 0, __bss_end - __bss_start); | |
390 | ||
391 | /* load/boot image from boot device */ | |
392 | board_init_r(NULL, 0); | |
393 | } |