Merge tag 'u-boot-atmel-2020.10-a' of https://gitlab.denx.de/u-boot/custodians/u...
[platform/kernel/u-boot.git] / board / menlo / m53menlo / m53menlo.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Menlosystems M53Menlo board
4  *
5  * Copyright (C) 2012-2017 Marek Vasut <marex@denx.de>
6  * Copyright (C) 2014-2017 Olaf Mandel <o.mandel@menlosystems.com>
7  */
8
9 #include <common.h>
10 #include <dm.h>
11 #include <init.h>
12 #include <malloc.h>
13 #include <asm/io.h>
14 #include <asm/arch/imx-regs.h>
15 #include <asm/arch/sys_proto.h>
16 #include <asm/arch/crm_regs.h>
17 #include <asm/arch/clock.h>
18 #include <asm/arch/iomux-mx53.h>
19 #include <asm/mach-imx/mx5_video.h>
20 #include <asm/mach-imx/video.h>
21 #include <asm/gpio.h>
22 #include <asm/spl.h>
23 #include <env.h>
24 #include <fdt_support.h>
25 #include <fsl_esdhc_imx.h>
26 #include <gzip.h>
27 #include <i2c.h>
28 #include <ipu_pixfmt.h>
29 #include <linux/bitops.h>
30 #include <linux/errno.h>
31 #include <linux/fb.h>
32 #include <mmc.h>
33 #include <netdev.h>
34 #include <spl.h>
35 #include <splash.h>
36 #include <usb/ehci-ci.h>
37 #include <video_console.h>
38
39 DECLARE_GLOBAL_DATA_PTR;
40
41 static u32 mx53_dram_size[2];
42
43 ulong board_get_usable_ram_top(ulong total_size)
44 {
45         /*
46          * WARNING: We must override get_effective_memsize() function here
47          * to report only the size of the first DRAM bank. This is to make
48          * U-Boot relocator place U-Boot into valid memory, that is, at the
49          * end of the first DRAM bank. If we did not override this function
50          * like so, U-Boot would be placed at the address of the first DRAM
51          * bank + total DRAM size - sizeof(uboot), which in the setup where
52          * each DRAM bank contains 512MiB of DRAM would result in placing
53          * U-Boot into invalid memory area close to the end of the first
54          * DRAM bank.
55          */
56         return PHYS_SDRAM_2 + mx53_dram_size[1];
57 }
58
59 int dram_init(void)
60 {
61         mx53_dram_size[0] = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30);
62         mx53_dram_size[1] = get_ram_size((void *)PHYS_SDRAM_2, 1 << 30);
63
64         gd->ram_size = mx53_dram_size[0] + mx53_dram_size[1];
65
66         return 0;
67 }
68
69 int dram_init_banksize(void)
70 {
71         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
72         gd->bd->bi_dram[0].size = mx53_dram_size[0];
73
74         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
75         gd->bd->bi_dram[1].size = mx53_dram_size[1];
76
77         return 0;
78 }
79
80 static void setup_iomux_uart(void)
81 {
82         static const iomux_v3_cfg_t uart_pads[] = {
83                 MX53_PAD_PATA_DMACK__UART1_RXD_MUX,
84                 MX53_PAD_PATA_DIOW__UART1_TXD_MUX,
85         };
86
87         imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads));
88 }
89
90 static void setup_iomux_fec(void)
91 {
92         static const iomux_v3_cfg_t fec_pads[] = {
93                 /* MDIO pads */
94                 NEW_PAD_CTRL(MX53_PAD_FEC_MDIO__FEC_MDIO, PAD_CTL_HYS |
95                         PAD_CTL_DSE_HIGH | PAD_CTL_PUS_22K_UP | PAD_CTL_ODE),
96                 NEW_PAD_CTRL(MX53_PAD_FEC_MDC__FEC_MDC, PAD_CTL_DSE_HIGH),
97
98                 /* FEC 0 pads */
99                 NEW_PAD_CTRL(MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
100                              PAD_CTL_HYS | PAD_CTL_PKE),
101                 NEW_PAD_CTRL(MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
102                              PAD_CTL_HYS | PAD_CTL_PKE),
103                 NEW_PAD_CTRL(MX53_PAD_FEC_RX_ER__FEC_RX_ER,
104                              PAD_CTL_HYS | PAD_CTL_PKE),
105                 NEW_PAD_CTRL(MX53_PAD_FEC_TX_EN__FEC_TX_EN, PAD_CTL_DSE_HIGH),
106                 NEW_PAD_CTRL(MX53_PAD_FEC_RXD0__FEC_RDATA_0,
107                              PAD_CTL_HYS | PAD_CTL_PKE),
108                 NEW_PAD_CTRL(MX53_PAD_FEC_RXD1__FEC_RDATA_1,
109                              PAD_CTL_HYS | PAD_CTL_PKE),
110                 NEW_PAD_CTRL(MX53_PAD_FEC_TXD0__FEC_TDATA_0, PAD_CTL_DSE_HIGH),
111                 NEW_PAD_CTRL(MX53_PAD_FEC_TXD1__FEC_TDATA_1, PAD_CTL_DSE_HIGH),
112
113                 /* FEC 1 pads */
114                 NEW_PAD_CTRL(MX53_PAD_KEY_COL0__FEC_RDATA_3,
115                              PAD_CTL_HYS | PAD_CTL_PKE),
116                 NEW_PAD_CTRL(MX53_PAD_KEY_ROW0__FEC_TX_ER,
117                              PAD_CTL_HYS | PAD_CTL_PKE),
118                 NEW_PAD_CTRL(MX53_PAD_KEY_COL1__FEC_RX_CLK,
119                              PAD_CTL_HYS | PAD_CTL_PKE),
120                 NEW_PAD_CTRL(MX53_PAD_KEY_ROW1__FEC_COL,
121                              PAD_CTL_HYS | PAD_CTL_PKE),
122                 NEW_PAD_CTRL(MX53_PAD_KEY_COL2__FEC_RDATA_2,
123                              PAD_CTL_HYS | PAD_CTL_PKE),
124                 NEW_PAD_CTRL(MX53_PAD_KEY_ROW2__FEC_TDATA_2, PAD_CTL_DSE_HIGH),
125                 NEW_PAD_CTRL(MX53_PAD_KEY_COL3__FEC_CRS,
126                              PAD_CTL_HYS | PAD_CTL_PKE),
127                 NEW_PAD_CTRL(MX53_PAD_GPIO_19__FEC_TDATA_3, PAD_CTL_DSE_HIGH),
128         };
129
130         imx_iomux_v3_setup_multiple_pads(fec_pads, ARRAY_SIZE(fec_pads));
131 }
132
133 #ifdef CONFIG_FSL_ESDHC_IMX
134 struct fsl_esdhc_cfg esdhc_cfg = {
135         MMC_SDHC1_BASE_ADDR,
136 };
137
138 int board_mmc_getcd(struct mmc *mmc)
139 {
140         imx_iomux_v3_setup_pad(MX53_PAD_GPIO_1__GPIO1_1);
141         gpio_direction_input(IMX_GPIO_NR(1, 1));
142
143         return !gpio_get_value(IMX_GPIO_NR(1, 1));
144 }
145
146 #define SD_CMD_PAD_CTRL         (PAD_CTL_HYS | PAD_CTL_DSE_HIGH | \
147                                  PAD_CTL_PUS_100K_UP)
148 #define SD_PAD_CTRL             (PAD_CTL_HYS | PAD_CTL_PUS_47K_UP | \
149                                  PAD_CTL_DSE_HIGH)
150
151 int board_mmc_init(bd_t *bis)
152 {
153         static const iomux_v3_cfg_t sd1_pads[] = {
154                 NEW_PAD_CTRL(MX53_PAD_SD1_CMD__ESDHC1_CMD, SD_CMD_PAD_CTRL),
155                 NEW_PAD_CTRL(MX53_PAD_SD1_CLK__ESDHC1_CLK, SD_PAD_CTRL),
156                 NEW_PAD_CTRL(MX53_PAD_SD1_DATA0__ESDHC1_DAT0, SD_PAD_CTRL),
157                 NEW_PAD_CTRL(MX53_PAD_SD1_DATA1__ESDHC1_DAT1, SD_PAD_CTRL),
158                 NEW_PAD_CTRL(MX53_PAD_SD1_DATA2__ESDHC1_DAT2, SD_PAD_CTRL),
159                 NEW_PAD_CTRL(MX53_PAD_SD1_DATA3__ESDHC1_DAT3, SD_PAD_CTRL),
160         };
161
162         esdhc_cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
163
164         imx_iomux_v3_setup_multiple_pads(sd1_pads, ARRAY_SIZE(sd1_pads));
165
166         return fsl_esdhc_initialize(bis, &esdhc_cfg);
167 }
168 #endif
169
170 static void enable_lvds_clock(struct display_info_t const *dev, const u8 hclk)
171 {
172         static struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)MXC_CCM_BASE;
173         int ret;
174
175         /* For ETM0430G0DH6 model, this must be enabled before the clock. */
176         gpio_direction_output(IMX_GPIO_NR(6, 0), 1);
177
178         /*
179          * Set LVDS clock to 33.28 MHz for the display. The PLL4 is set to
180          * 233 MHz, divided by 7 by setting CCM_CSCMR2 LDB_DI0_IPU_DIV=1 .
181          */
182         ret = mxc_set_clock(MXC_HCLK, hclk, MXC_LDB_CLK);
183         if (ret)
184                 puts("IPU:   Failed to configure LDB clock\n");
185
186         /* Configure CCM_CSCMR2 */
187         clrsetbits_le32(&mxc_ccm->cscmr2,
188                         (0x7 << 26) | BIT(10) | BIT(8),
189                         (0x5 << 26) | BIT(10) | BIT(8));
190
191         /* Configure LDB_CTRL */
192         writel(0x201, 0x53fa8008);
193 }
194
195 static void enable_lvds_etm0430g0dh6(struct display_info_t const *dev)
196 {
197         gpio_request(IMX_GPIO_NR(6, 0), "LCD");
198
199         /* For ETM0430G0DH6 model, this must be enabled before the clock. */
200         gpio_direction_output(IMX_GPIO_NR(6, 0), 1);
201
202         /*
203          * Set LVDS clock to 9 MHz for the display. The PLL4 is set to
204          * 63 MHz, divided by 7 by setting CCM_CSCMR2 LDB_DI0_IPU_DIV=1 .
205          */
206         enable_lvds_clock(dev, 63);
207 }
208
209 static void enable_lvds_etm0700g0dh6(struct display_info_t const *dev)
210 {
211         gpio_request(IMX_GPIO_NR(6, 0), "LCD");
212
213         /*
214          * Set LVDS clock to 33.28 MHz for the display. The PLL4 is set to
215          * 233 MHz, divided by 7 by setting CCM_CSCMR2 LDB_DI0_IPU_DIV=1 .
216          */
217         enable_lvds_clock(dev, 233);
218
219         /* For ETM0700G0DH6 model, this may be enabled after the clock. */
220         gpio_direction_output(IMX_GPIO_NR(6, 0), 1);
221 }
222
223 static const char *lvds_compat_string;
224
225 static int detect_lvds(struct display_info_t const *dev)
226 {
227         u8 touchid[23];
228         u8 *touchptr = &touchid[0];
229         int ret;
230
231         ret = i2c_set_bus_num(0);
232         if (ret)
233                 return 0;
234
235         /* Touchscreen is at address 0x38, ID register is 0xbb. */
236         ret = i2c_read(0x38, 0xbb, 1, touchid, sizeof(touchid));
237         if (ret)
238                 return 0;
239
240         /* EP0430 prefixes the response with 0xbb, skip it. */
241         if (*touchptr == 0xbb)
242                 touchptr++;
243
244         /* Skip the 'EP' prefix. */
245         touchptr += 2;
246
247         ret = !memcmp(touchptr, &dev->mode.name[7], 4);
248         if (ret)
249                 lvds_compat_string = dev->mode.name;
250
251         return ret;
252 }
253
254 void board_preboot_os(void)
255 {
256         /* Power off the LCD to prevent awful color flicker */
257         gpio_direction_output(IMX_GPIO_NR(6, 0), 0);
258 }
259
260 int ft_board_setup(void *blob, bd_t *bd)
261 {
262         if (lvds_compat_string)
263                 do_fixup_by_path_string(blob, "/panel", "compatible",
264                                         lvds_compat_string);
265
266         return 0;
267 }
268
269 struct display_info_t const displays[] = {
270         {
271                 .bus    = 0,
272                 .addr   = 0,
273                 .detect = detect_lvds,
274                 .enable = enable_lvds_etm0430g0dh6,
275                 .pixfmt = IPU_PIX_FMT_RGB666,
276                 .mode   = {
277                         .name           = "edt,etm0430g0dh6",
278                         .refresh        = 60,
279                         .xres           = 480,
280                         .yres           = 272,
281                         .pixclock       = 111111, /* picosecond (9 MHz) */
282                         .left_margin    = 2,
283                         .right_margin   = 2,
284                         .upper_margin   = 2,
285                         .lower_margin   = 2,
286                         .hsync_len      = 41,
287                         .vsync_len      = 10,
288                         .sync           = 0x40000000,
289                         .vmode          = FB_VMODE_NONINTERLACED
290                 }
291         }, {
292                 .bus    = 0,
293                 .addr   = 0,
294                 .detect = detect_lvds,
295                 .enable = enable_lvds_etm0700g0dh6,
296                 .pixfmt = IPU_PIX_FMT_RGB666,
297                 .mode   = {
298                         .name           = "edt,etm0700g0dh6",
299                         .refresh        = 60,
300                         .xres           = 800,
301                         .yres           = 480,
302                         .pixclock       = 30048, /* picosecond (33.28 MHz) */
303                         .left_margin    = 40,
304                         .right_margin   = 88,
305                         .upper_margin   = 10,
306                         .lower_margin   = 33,
307                         .hsync_len      = 128,
308                         .vsync_len      = 2,
309                         .sync           = FB_SYNC_EXT,
310                         .vmode          = FB_VMODE_NONINTERLACED
311                 }
312         }
313 };
314
315 size_t display_count = ARRAY_SIZE(displays);
316
317 #ifdef CONFIG_SPLASH_SCREEN
318 static struct splash_location default_splash_locations[] = {
319         {
320                 .name           = "mmc_fs",
321                 .storage        = SPLASH_STORAGE_MMC,
322                 .flags          = SPLASH_STORAGE_FS,
323                 .devpart        = "0:1",
324         },
325 };
326
327 int splash_screen_prepare(void)
328 {
329         return splash_source_load(default_splash_locations,
330                                   ARRAY_SIZE(default_splash_locations));
331 }
332 #endif
333
334 int board_late_init(void)
335 {
336 #if defined(CONFIG_VIDEO_IPUV3)
337         struct udevice *dev;
338         int xpos, ypos, ret;
339         char *s;
340         void *dst;
341         ulong addr, len;
342
343         splash_get_pos(&xpos, &ypos);
344
345         s = env_get("splashimage");
346         if (!s)
347                 return 0;
348
349         addr = simple_strtoul(s, NULL, 16);
350         dst = malloc(CONFIG_SYS_VIDEO_LOGO_MAX_SIZE);
351         if (!dst)
352                 return -ENOMEM;
353
354         ret = splash_screen_prepare();
355         if (ret < 0)
356                 goto splasherr;
357
358         len = CONFIG_SYS_VIDEO_LOGO_MAX_SIZE;
359         ret = gunzip(dst + 2, CONFIG_SYS_VIDEO_LOGO_MAX_SIZE - 2,
360                      (uchar *)addr, &len);
361         if (ret) {
362                 printf("Error: no valid bmp or bmp.gz image at %lx\n", addr);
363                 goto splasherr;
364         }
365
366         ret = uclass_get_device(UCLASS_VIDEO, 0, &dev);
367         if (ret)
368                 goto splasherr;
369
370         ret = video_bmp_display(dev, (ulong)dst + 2, xpos, ypos, true);
371         if (ret)
372                 goto splasherr;
373
374         return 0;
375
376 splasherr:
377         free(dst);
378 #endif
379         return 0;
380 }
381
382 #define I2C_PAD_CTRL    (PAD_CTL_SRE_FAST | PAD_CTL_DSE_HIGH | \
383                          PAD_CTL_PUS_100K_UP | PAD_CTL_ODE)
384
385 static void setup_iomux_i2c(void)
386 {
387         static const iomux_v3_cfg_t i2c_pads[] = {
388                 /* I2C1 */
389                 NEW_PAD_CTRL(MX53_PAD_EIM_D28__I2C1_SDA, I2C_PAD_CTRL),
390                 NEW_PAD_CTRL(MX53_PAD_EIM_D21__I2C1_SCL, I2C_PAD_CTRL),
391                 /* I2C2 */
392                 NEW_PAD_CTRL(MX53_PAD_EIM_D16__I2C2_SDA, I2C_PAD_CTRL),
393                 NEW_PAD_CTRL(MX53_PAD_EIM_EB2__I2C2_SCL, I2C_PAD_CTRL),
394         };
395
396         imx_iomux_v3_setup_multiple_pads(i2c_pads, ARRAY_SIZE(i2c_pads));
397 }
398
399 static void setup_iomux_video(void)
400 {
401         static const iomux_v3_cfg_t lcd_pads[] = {
402                 MX53_PAD_LVDS0_TX3_P__LDB_LVDS0_TX3,
403                 MX53_PAD_LVDS0_CLK_P__LDB_LVDS0_CLK,
404                 MX53_PAD_LVDS0_TX2_P__LDB_LVDS0_TX2,
405                 MX53_PAD_LVDS0_TX1_P__LDB_LVDS0_TX1,
406                 MX53_PAD_LVDS0_TX0_P__LDB_LVDS0_TX0,
407         };
408
409         imx_iomux_v3_setup_multiple_pads(lcd_pads, ARRAY_SIZE(lcd_pads));
410 }
411
412 static void setup_iomux_nand(void)
413 {
414         static const iomux_v3_cfg_t nand_pads[] = {
415                 NEW_PAD_CTRL(MX53_PAD_NANDF_WE_B__EMI_NANDF_WE_B,
416                              PAD_CTL_DSE_HIGH),
417                 NEW_PAD_CTRL(MX53_PAD_NANDF_RE_B__EMI_NANDF_RE_B,
418                              PAD_CTL_DSE_HIGH),
419                 NEW_PAD_CTRL(MX53_PAD_NANDF_CLE__EMI_NANDF_CLE,
420                              PAD_CTL_DSE_HIGH),
421                 NEW_PAD_CTRL(MX53_PAD_NANDF_ALE__EMI_NANDF_ALE,
422                              PAD_CTL_DSE_HIGH),
423                 NEW_PAD_CTRL(MX53_PAD_NANDF_WP_B__EMI_NANDF_WP_B,
424                              PAD_CTL_PUS_100K_UP),
425                 NEW_PAD_CTRL(MX53_PAD_NANDF_RB0__EMI_NANDF_RB_0,
426                              PAD_CTL_PUS_100K_UP),
427                 NEW_PAD_CTRL(MX53_PAD_NANDF_CS0__EMI_NANDF_CS_0,
428                              PAD_CTL_DSE_HIGH),
429                 NEW_PAD_CTRL(MX53_PAD_PATA_DATA0__EMI_NANDF_D_0,
430                              PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
431                 NEW_PAD_CTRL(MX53_PAD_PATA_DATA1__EMI_NANDF_D_1,
432                              PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
433                 NEW_PAD_CTRL(MX53_PAD_PATA_DATA2__EMI_NANDF_D_2,
434                              PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
435                 NEW_PAD_CTRL(MX53_PAD_PATA_DATA3__EMI_NANDF_D_3,
436                              PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
437                 NEW_PAD_CTRL(MX53_PAD_PATA_DATA4__EMI_NANDF_D_4,
438                              PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
439                 NEW_PAD_CTRL(MX53_PAD_PATA_DATA5__EMI_NANDF_D_5,
440                              PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
441                 NEW_PAD_CTRL(MX53_PAD_PATA_DATA6__EMI_NANDF_D_6,
442                              PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
443                 NEW_PAD_CTRL(MX53_PAD_PATA_DATA7__EMI_NANDF_D_7,
444                              PAD_CTL_DSE_HIGH | PAD_CTL_PKE),
445         };
446
447         imx_iomux_v3_setup_multiple_pads(nand_pads, ARRAY_SIZE(nand_pads));
448 }
449
450 static void m53_set_clock(void)
451 {
452         int ret;
453         const u32 ref_clk = MXC_HCLK;
454         const u32 dramclk = 400;
455         u32 cpuclk;
456
457         gpio_request(IMX_GPIO_NR(4, 0), "CPUCLK");
458
459         imx_iomux_v3_setup_pad(NEW_PAD_CTRL(MX53_PAD_GPIO_10__GPIO4_0,
460                                             PAD_CTL_DSE_HIGH | PAD_CTL_PKE));
461         gpio_direction_input(IMX_GPIO_NR(4, 0));
462
463         /* GPIO10 selects modules' CPU speed, 1 = 1200MHz ; 0 = 800MHz */
464         cpuclk = gpio_get_value(IMX_GPIO_NR(4, 0)) ? 1200 : 800;
465
466         ret = mxc_set_clock(ref_clk, cpuclk, MXC_ARM_CLK);
467         if (ret)
468                 printf("CPU:   Switch CPU clock to %dMHz failed\n", cpuclk);
469
470         ret = mxc_set_clock(ref_clk, dramclk, MXC_PERIPH_CLK);
471         if (ret) {
472                 printf("CPU:   Switch peripheral clock to %dMHz failed\n",
473                        dramclk);
474         }
475
476         ret = mxc_set_clock(ref_clk, dramclk, MXC_DDR_CLK);
477         if (ret)
478                 printf("CPU:   Switch DDR clock to %dMHz failed\n", dramclk);
479 }
480
481 static void m53_set_nand(void)
482 {
483         u32 i;
484
485         /* NAND flash is muxed on ATA pins */
486         setbits_le32(M4IF_BASE_ADDR + 0xc, M4IF_GENP_WEIM_MM_MASK);
487
488         /* Wait for Grant/Ack sequence (see EIM_CSnGCR2:MUX16_BYP_GRANT) */
489         for (i = 0x4; i < 0x94; i += 0x18) {
490                 clrbits_le32(WEIM_BASE_ADDR + i,
491                              WEIM_GCR2_MUX16_BYP_GRANT_MASK);
492         }
493
494         mxc_set_clock(0, 33, MXC_NFC_CLK);
495         enable_nfc_clk(1);
496 }
497
498 int board_early_init_f(void)
499 {
500         setup_iomux_uart();
501         setup_iomux_fec();
502         setup_iomux_i2c();
503         setup_iomux_nand();
504         setup_iomux_video();
505
506         m53_set_clock();
507
508         mxc_set_sata_internal_clock();
509
510         /* NAND clock @ 33MHz */
511         m53_set_nand();
512
513         return 0;
514 }
515
516 int board_init(void)
517 {
518         gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
519
520         return 0;
521 }
522
523 int checkboard(void)
524 {
525         puts("Board: Menlosystems M53Menlo\n");
526
527         return 0;
528 }
529
530 /*
531  * NAND SPL
532  */
533 #ifdef CONFIG_SPL_BUILD
534 void spl_board_init(void)
535 {
536         setup_iomux_nand();
537         m53_set_clock();
538         m53_set_nand();
539 }
540
541 u32 spl_boot_device(void)
542 {
543         return BOOT_DEVICE_NAND;
544 }
545 #endif