Merge tag 'u-boot-stm32-20200214' of https://gitlab.denx.de/u-boot/custodians/u-boot-stm
[oweals/u-boot.git] / board / dhelectronics / dh_stm32mp1 / board.c
1 // SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
2 /*
3  * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
4  */
5
6 #include <common.h>
7 #include <adc.h>
8 #include <asm/arch/stm32.h>
9 #include <asm/arch/sys_proto.h>
10 #include <asm/gpio.h>
11 #include <asm/io.h>
12 #include <bootm.h>
13 #include <clk.h>
14 #include <config.h>
15 #include <dm.h>
16 #include <dm/device.h>
17 #include <dm/uclass.h>
18 #include <env.h>
19 #include <env_internal.h>
20 #include <g_dnl.h>
21 #include <generic-phy.h>
22 #include <hang.h>
23 #include <i2c.h>
24 #include <i2c_eeprom.h>
25 #include <init.h>
26 #include <led.h>
27 #include <memalign.h>
28 #include <misc.h>
29 #include <mtd.h>
30 #include <mtd_node.h>
31 #include <netdev.h>
32 #include <phy.h>
33 #include <power/regulator.h>
34 #include <remoteproc.h>
35 #include <reset.h>
36 #include <syscon.h>
37 #include <usb.h>
38 #include <usb/dwc2_udc.h>
39 #include <watchdog.h>
40
41 /* SYSCFG registers */
42 #define SYSCFG_BOOTR            0x00
43 #define SYSCFG_PMCSETR          0x04
44 #define SYSCFG_IOCTRLSETR       0x18
45 #define SYSCFG_ICNR             0x1C
46 #define SYSCFG_CMPCR            0x20
47 #define SYSCFG_CMPENSETR        0x24
48 #define SYSCFG_PMCCLRR          0x44
49
50 #define SYSCFG_BOOTR_BOOT_MASK          GENMASK(2, 0)
51 #define SYSCFG_BOOTR_BOOTPD_SHIFT       4
52
53 #define SYSCFG_IOCTRLSETR_HSLVEN_TRACE          BIT(0)
54 #define SYSCFG_IOCTRLSETR_HSLVEN_QUADSPI        BIT(1)
55 #define SYSCFG_IOCTRLSETR_HSLVEN_ETH            BIT(2)
56 #define SYSCFG_IOCTRLSETR_HSLVEN_SDMMC          BIT(3)
57 #define SYSCFG_IOCTRLSETR_HSLVEN_SPI            BIT(4)
58
59 #define SYSCFG_CMPCR_SW_CTRL            BIT(1)
60 #define SYSCFG_CMPCR_READY              BIT(8)
61
62 #define SYSCFG_CMPENSETR_MPU_EN         BIT(0)
63
64 #define SYSCFG_PMCSETR_ETH_CLK_SEL      BIT(16)
65 #define SYSCFG_PMCSETR_ETH_REF_CLK_SEL  BIT(17)
66
67 #define SYSCFG_PMCSETR_ETH_SELMII       BIT(20)
68
69 #define SYSCFG_PMCSETR_ETH_SEL_MASK     GENMASK(23, 21)
70 #define SYSCFG_PMCSETR_ETH_SEL_GMII_MII 0
71 #define SYSCFG_PMCSETR_ETH_SEL_RGMII    BIT(21)
72 #define SYSCFG_PMCSETR_ETH_SEL_RMII     BIT(23)
73
74 /*
75  * Get a global data pointer
76  */
77 DECLARE_GLOBAL_DATA_PTR;
78
79 int setup_mac_address(void)
80 {
81         struct udevice *dev;
82         ofnode eeprom;
83         unsigned char enetaddr[6];
84         int ret;
85
86         ret = eth_env_get_enetaddr("ethaddr", enetaddr);
87         if (ret)        /* ethaddr is already set */
88                 return 0;
89
90         eeprom = ofnode_path("/soc/i2c@5c002000/eeprom@50");
91         if (!ofnode_valid(eeprom)) {
92                 printf("Invalid hardware path to EEPROM!\n");
93                 return -ENODEV;
94         }
95
96         ret = uclass_get_device_by_ofnode(UCLASS_I2C_EEPROM, eeprom, &dev);
97         if (ret) {
98                 printf("Cannot find EEPROM!\n");
99                 return ret;
100         }
101
102         ret = i2c_eeprom_read(dev, 0xfa, enetaddr, 0x6);
103         if (ret) {
104                 printf("Error reading configuration EEPROM!\n");
105                 return ret;
106         }
107
108         if (is_valid_ethaddr(enetaddr))
109                 eth_env_set_enetaddr("ethaddr", enetaddr);
110
111         return 0;
112 }
113
114 int checkboard(void)
115 {
116         char *mode;
117         const char *fdt_compat;
118         int fdt_compat_len;
119
120         if (IS_ENABLED(CONFIG_STM32MP1_OPTEE))
121                 mode = "trusted with OP-TEE";
122         else if (IS_ENABLED(CONFIG_STM32MP1_TRUSTED))
123                 mode = "trusted";
124         else
125                 mode = "basic";
126
127         printf("Board: stm32mp1 in %s mode", mode);
128         fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
129                                  &fdt_compat_len);
130         if (fdt_compat && fdt_compat_len)
131                 printf(" (%s)", fdt_compat);
132         puts("\n");
133
134         return 0;
135 }
136
137 static void board_key_check(void)
138 {
139 #if defined(CONFIG_FASTBOOT) || defined(CONFIG_CMD_STM32PROG)
140         ofnode node;
141         struct gpio_desc gpio;
142         enum forced_boot_mode boot_mode = BOOT_NORMAL;
143
144         node = ofnode_path("/config");
145         if (!ofnode_valid(node)) {
146                 debug("%s: no /config node?\n", __func__);
147                 return;
148         }
149 #ifdef CONFIG_FASTBOOT
150         if (gpio_request_by_name_nodev(node, "st,fastboot-gpios", 0,
151                                        &gpio, GPIOD_IS_IN)) {
152                 debug("%s: could not find a /config/st,fastboot-gpios\n",
153                       __func__);
154         } else {
155                 if (dm_gpio_get_value(&gpio)) {
156                         puts("Fastboot key pressed, ");
157                         boot_mode = BOOT_FASTBOOT;
158                 }
159
160                 dm_gpio_free(NULL, &gpio);
161         }
162 #endif
163 #ifdef CONFIG_CMD_STM32PROG
164         if (gpio_request_by_name_nodev(node, "st,stm32prog-gpios", 0,
165                                        &gpio, GPIOD_IS_IN)) {
166                 debug("%s: could not find a /config/st,stm32prog-gpios\n",
167                       __func__);
168         } else {
169                 if (dm_gpio_get_value(&gpio)) {
170                         puts("STM32Programmer key pressed, ");
171                         boot_mode = BOOT_STM32PROG;
172                 }
173                 dm_gpio_free(NULL, &gpio);
174         }
175 #endif
176
177         if (boot_mode != BOOT_NORMAL) {
178                 puts("entering download mode...\n");
179                 clrsetbits_le32(TAMP_BOOT_CONTEXT,
180                                 TAMP_BOOT_FORCED_MASK,
181                                 boot_mode);
182         }
183 #endif
184 }
185
186 #if defined(CONFIG_USB_GADGET) && defined(CONFIG_USB_GADGET_DWC2_OTG)
187
188 #include <usb/dwc2_udc.h>
189 int g_dnl_board_usb_cable_connected(void)
190 {
191         struct udevice *dwc2_udc_otg;
192         int ret;
193
194         ret = uclass_get_device_by_driver(UCLASS_USB_GADGET_GENERIC,
195                                           DM_GET_DRIVER(dwc2_udc_otg),
196                                           &dwc2_udc_otg);
197         if (!ret)
198                 debug("dwc2_udc_otg init failed\n");
199
200         return dwc2_udc_B_session_valid(dwc2_udc_otg);
201 }
202
203 #define STM32MP1_G_DNL_DFU_PRODUCT_NUM 0xdf11
204 #define STM32MP1_G_DNL_FASTBOOT_PRODUCT_NUM 0x0afb
205
206 int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
207 {
208         if (!strcmp(name, "usb_dnl_dfu"))
209                 put_unaligned(STM32MP1_G_DNL_DFU_PRODUCT_NUM, &dev->idProduct);
210         else if (!strcmp(name, "usb_dnl_fastboot"))
211                 put_unaligned(STM32MP1_G_DNL_FASTBOOT_PRODUCT_NUM,
212                               &dev->idProduct);
213         else
214                 put_unaligned(CONFIG_USB_GADGET_PRODUCT_NUM, &dev->idProduct);
215
216         return 0;
217 }
218
219 #endif /* CONFIG_USB_GADGET */
220
221 #ifdef CONFIG_LED
222 static int get_led(struct udevice **dev, char *led_string)
223 {
224         char *led_name;
225         int ret;
226
227         led_name = fdtdec_get_config_string(gd->fdt_blob, led_string);
228         if (!led_name) {
229                 pr_debug("%s: could not find %s config string\n",
230                          __func__, led_string);
231                 return -ENOENT;
232         }
233         ret = led_get_by_label(led_name, dev);
234         if (ret) {
235                 debug("%s: get=%d\n", __func__, ret);
236                 return ret;
237         }
238
239         return 0;
240 }
241
242 static int setup_led(enum led_state_t cmd)
243 {
244         struct udevice *dev;
245         int ret;
246
247         ret = get_led(&dev, "u-boot,boot-led");
248         if (ret)
249                 return ret;
250
251         ret = led_set_state(dev, cmd);
252         return ret;
253 }
254 #endif
255
256 static void __maybe_unused led_error_blink(u32 nb_blink)
257 {
258 #ifdef CONFIG_LED
259         int ret;
260         struct udevice *led;
261         u32 i;
262 #endif
263
264         if (!nb_blink)
265                 return;
266
267 #ifdef CONFIG_LED
268         ret = get_led(&led, "u-boot,error-led");
269         if (!ret) {
270                 /* make u-boot,error-led blinking */
271                 /* if U32_MAX and 125ms interval, for 17.02 years */
272                 for (i = 0; i < 2 * nb_blink; i++) {
273                         led_set_state(led, LEDST_TOGGLE);
274                         mdelay(125);
275                         WATCHDOG_RESET();
276                 }
277         }
278 #endif
279
280         /* infinite: the boot process must be stopped */
281         if (nb_blink == U32_MAX)
282                 hang();
283 }
284
285 static void sysconf_init(void)
286 {
287 #ifndef CONFIG_STM32MP1_TRUSTED
288         u8 *syscfg;
289 #ifdef CONFIG_DM_REGULATOR
290         struct udevice *pwr_dev;
291         struct udevice *pwr_reg;
292         struct udevice *dev;
293         int ret;
294         u32 otp = 0;
295 #endif
296         u32 bootr;
297
298         syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
299
300         /* interconnect update : select master using the port 1 */
301         /* LTDC = AXI_M9 */
302         /* GPU  = AXI_M8 */
303         /* today information is hardcoded in U-Boot */
304         writel(BIT(9), syscfg + SYSCFG_ICNR);
305
306         /* disable Pull-Down for boot pin connected to VDD */
307         bootr = readl(syscfg + SYSCFG_BOOTR);
308         bootr &= ~(SYSCFG_BOOTR_BOOT_MASK << SYSCFG_BOOTR_BOOTPD_SHIFT);
309         bootr |= (bootr & SYSCFG_BOOTR_BOOT_MASK) << SYSCFG_BOOTR_BOOTPD_SHIFT;
310         writel(bootr, syscfg + SYSCFG_BOOTR);
311
312 #ifdef CONFIG_DM_REGULATOR
313         /* High Speed Low Voltage Pad mode Enable for SPI, SDMMC, ETH, QSPI
314          * and TRACE. Needed above ~50MHz and conditioned by AFMUX selection.
315          * The customer will have to disable this for low frequencies
316          * or if AFMUX is selected but the function not used, typically for
317          * TRACE. Otherwise, impact on power consumption.
318          *
319          * WARNING:
320          *   enabling High Speed mode while VDD>2.7V
321          *   with the OTP product_below_2v5 (OTP 18, BIT 13)
322          *   erroneously set to 1 can damage the IC!
323          *   => U-Boot set the register only if VDD < 2.7V (in DT)
324          *      but this value need to be consistent with board design
325          */
326         ret = uclass_get_device_by_driver(UCLASS_PMIC,
327                                           DM_GET_DRIVER(stm32mp_pwr_pmic),
328                                           &pwr_dev);
329         if (!ret) {
330                 ret = uclass_get_device_by_driver(UCLASS_MISC,
331                                                   DM_GET_DRIVER(stm32mp_bsec),
332                                                   &dev);
333                 if (ret) {
334                         pr_err("Can't find stm32mp_bsec driver\n");
335                         return;
336                 }
337
338                 ret = misc_read(dev, STM32_BSEC_SHADOW(18), &otp, 4);
339                 if (ret > 0)
340                         otp = otp & BIT(13);
341
342                 /* get VDD = vdd-supply */
343                 ret = device_get_supply_regulator(pwr_dev, "vdd-supply",
344                                                   &pwr_reg);
345
346                 /* check if VDD is Low Voltage */
347                 if (!ret) {
348                         if (regulator_get_value(pwr_reg) < 2700000) {
349                                 writel(SYSCFG_IOCTRLSETR_HSLVEN_TRACE |
350                                        SYSCFG_IOCTRLSETR_HSLVEN_QUADSPI |
351                                        SYSCFG_IOCTRLSETR_HSLVEN_ETH |
352                                        SYSCFG_IOCTRLSETR_HSLVEN_SDMMC |
353                                        SYSCFG_IOCTRLSETR_HSLVEN_SPI,
354                                        syscfg + SYSCFG_IOCTRLSETR);
355
356                                 if (!otp)
357                                         pr_err("product_below_2v5=0: HSLVEN protected by HW\n");
358                         } else {
359                                 if (otp)
360                                         pr_err("product_below_2v5=1: HSLVEN update is destructive, no update as VDD>2.7V\n");
361                         }
362                 } else {
363                         debug("VDD unknown");
364                 }
365         }
366 #endif
367
368         /* activate automatic I/O compensation
369          * warning: need to ensure CSI enabled and ready in clock driver
370          */
371         writel(SYSCFG_CMPENSETR_MPU_EN, syscfg + SYSCFG_CMPENSETR);
372
373         while (!(readl(syscfg + SYSCFG_CMPCR) & SYSCFG_CMPCR_READY))
374                 ;
375         clrbits_le32(syscfg + SYSCFG_CMPCR, SYSCFG_CMPCR_SW_CTRL);
376 #endif
377 }
378
379 /* board dependent setup after realloc */
380 int board_init(void)
381 {
382         struct udevice *dev;
383
384         /* address of boot parameters */
385         gd->bd->bi_boot_params = STM32_DDR_BASE + 0x100;
386
387         /* probe all PINCTRL for hog */
388         for (uclass_first_device(UCLASS_PINCTRL, &dev);
389              dev;
390              uclass_next_device(&dev)) {
391                 pr_debug("probe pincontrol = %s\n", dev->name);
392         }
393
394         board_key_check();
395
396 #ifdef CONFIG_DM_REGULATOR
397         regulators_enable_boot_on(_DEBUG);
398 #endif
399
400         sysconf_init();
401
402         if (CONFIG_IS_ENABLED(CONFIG_LED))
403                 led_default_state();
404
405         return 0;
406 }
407
408 int board_late_init(void)
409 {
410         char *boot_device;
411 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
412         const void *fdt_compat;
413         int fdt_compat_len;
414
415         fdt_compat = fdt_getprop(gd->fdt_blob, 0, "compatible",
416                                  &fdt_compat_len);
417         if (fdt_compat && fdt_compat_len) {
418                 if (strncmp(fdt_compat, "st,", 3) != 0)
419                         env_set("board_name", fdt_compat);
420                 else
421                         env_set("board_name", fdt_compat + 3);
422         }
423 #endif
424
425         /* Check the boot-source to disable bootdelay */
426         boot_device = env_get("boot_device");
427         if (!strcmp(boot_device, "serial") || !strcmp(boot_device, "usb"))
428                 env_set("bootdelay", "0");
429
430         return 0;
431 }
432
433 void board_quiesce_devices(void)
434 {
435 #ifdef CONFIG_LED
436         setup_led(LEDST_OFF);
437 #endif
438 }
439
440 /* eth init function : weak called in eqos driver */
441 int board_interface_eth_init(struct udevice *dev,
442                              phy_interface_t interface_type)
443 {
444         u8 *syscfg;
445         u32 value;
446         bool eth_clk_sel_reg = false;
447         bool eth_ref_clk_sel_reg = false;
448
449         /* Gigabit Ethernet 125MHz clock selection. */
450         eth_clk_sel_reg = dev_read_bool(dev, "st,eth_clk_sel");
451
452         /* Ethernet 50Mhz RMII clock selection */
453         eth_ref_clk_sel_reg =
454                 dev_read_bool(dev, "st,eth_ref_clk_sel");
455
456         syscfg = (u8 *)syscon_get_first_range(STM32MP_SYSCON_SYSCFG);
457
458         if (!syscfg)
459                 return -ENODEV;
460
461         switch (interface_type) {
462         case PHY_INTERFACE_MODE_MII:
463                 value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
464                         SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
465                 debug("%s: PHY_INTERFACE_MODE_MII\n", __func__);
466                 break;
467         case PHY_INTERFACE_MODE_GMII:
468                 if (eth_clk_sel_reg)
469                         value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII |
470                                 SYSCFG_PMCSETR_ETH_CLK_SEL;
471                 else
472                         value = SYSCFG_PMCSETR_ETH_SEL_GMII_MII;
473                 debug("%s: PHY_INTERFACE_MODE_GMII\n", __func__);
474                 break;
475         case PHY_INTERFACE_MODE_RMII:
476                 if (eth_ref_clk_sel_reg)
477                         value = SYSCFG_PMCSETR_ETH_SEL_RMII |
478                                 SYSCFG_PMCSETR_ETH_REF_CLK_SEL;
479                 else
480                         value = SYSCFG_PMCSETR_ETH_SEL_RMII;
481                 debug("%s: PHY_INTERFACE_MODE_RMII\n", __func__);
482                 break;
483         case PHY_INTERFACE_MODE_RGMII:
484         case PHY_INTERFACE_MODE_RGMII_ID:
485         case PHY_INTERFACE_MODE_RGMII_RXID:
486         case PHY_INTERFACE_MODE_RGMII_TXID:
487                 if (eth_clk_sel_reg)
488                         value = SYSCFG_PMCSETR_ETH_SEL_RGMII |
489                                 SYSCFG_PMCSETR_ETH_CLK_SEL;
490                 else
491                         value = SYSCFG_PMCSETR_ETH_SEL_RGMII;
492                 debug("%s: PHY_INTERFACE_MODE_RGMII\n", __func__);
493                 break;
494         default:
495                 debug("%s: Do not manage %d interface\n",
496                       __func__, interface_type);
497                 /* Do not manage others interfaces */
498                 return -EINVAL;
499         }
500
501         /* clear and set ETH configuration bits */
502         writel(SYSCFG_PMCSETR_ETH_SEL_MASK | SYSCFG_PMCSETR_ETH_SELMII |
503                SYSCFG_PMCSETR_ETH_REF_CLK_SEL | SYSCFG_PMCSETR_ETH_CLK_SEL,
504                syscfg + SYSCFG_PMCCLRR);
505         writel(value, syscfg + SYSCFG_PMCSETR);
506
507         return 0;
508 }
509
510 enum env_location env_get_location(enum env_operation op, int prio)
511 {
512         if (prio)
513                 return ENVL_UNKNOWN;
514
515 #ifdef CONFIG_ENV_IS_IN_SPI_FLASH
516         return ENVL_SPI_FLASH;
517 #else
518         return ENVL_NOWHERE;
519 #endif
520 }
521
522 #ifdef CONFIG_SYS_MTDPARTS_RUNTIME
523
524 #define MTDPARTS_LEN            256
525 #define MTDIDS_LEN              128
526
527 /**
528  * The mtdparts_nand0 and mtdparts_nor0 variable tends to be long.
529  * If we need to access it before the env is relocated, then we need
530  * to use our own stack buffer. gd->env_buf will be too small.
531  *
532  * @param buf temporary buffer pointer MTDPARTS_LEN long
533  * @return mtdparts variable string, NULL if not found
534  */
535 static const char *env_get_mtdparts(const char *str, char *buf)
536 {
537         if (gd->flags & GD_FLG_ENV_READY)
538                 return env_get(str);
539         if (env_get_f(str, buf, MTDPARTS_LEN) != -1)
540                 return buf;
541
542         return NULL;
543 }
544
545 /**
546  * update the variables "mtdids" and "mtdparts" with content of mtdparts_<dev>
547  */
548 static void board_get_mtdparts(const char *dev,
549                                char *mtdids,
550                                char *mtdparts)
551 {
552         char env_name[32] = "mtdparts_";
553         char tmp_mtdparts[MTDPARTS_LEN];
554         const char *tmp;
555
556         /* name of env variable to read = mtdparts_<dev> */
557         strcat(env_name, dev);
558         tmp = env_get_mtdparts(env_name, tmp_mtdparts);
559         if (tmp) {
560                 /* mtdids: "<dev>=<dev>, ...." */
561                 if (mtdids[0] != '\0')
562                         strcat(mtdids, ",");
563                 strcat(mtdids, dev);
564                 strcat(mtdids, "=");
565                 strcat(mtdids, dev);
566
567                 /* mtdparts: "mtdparts=<dev>:<mtdparts_<dev>>;..." */
568                 if (mtdparts[0] != '\0')
569                         strncat(mtdparts, ";", MTDPARTS_LEN);
570                 else
571                         strcat(mtdparts, "mtdparts=");
572                 strncat(mtdparts, dev, MTDPARTS_LEN);
573                 strncat(mtdparts, ":", MTDPARTS_LEN);
574                 strncat(mtdparts, tmp, MTDPARTS_LEN);
575         }
576 }
577
578 void board_mtdparts_default(const char **mtdids, const char **mtdparts)
579 {
580         struct udevice *dev;
581         static char parts[3 * MTDPARTS_LEN + 1];
582         static char ids[MTDIDS_LEN + 1];
583         static bool mtd_initialized;
584
585         if (mtd_initialized) {
586                 *mtdids = ids;
587                 *mtdparts = parts;
588                 return;
589         }
590
591         memset(parts, 0, sizeof(parts));
592         memset(ids, 0, sizeof(ids));
593
594         /* probe all MTD devices */
595         for (uclass_first_device(UCLASS_MTD, &dev);
596              dev;
597              uclass_next_device(&dev)) {
598                 pr_debug("mtd device = %s\n", dev->name);
599         }
600
601         if (!uclass_get_device(UCLASS_SPI_FLASH, 0, &dev))
602                 board_get_mtdparts("nor0", ids, parts);
603
604         mtd_initialized = true;
605         *mtdids = ids;
606         *mtdparts = parts;
607         debug("%s:mtdids=%s & mtdparts=%s\n", __func__, ids, parts);
608 }
609 #endif
610
611 #if defined(CONFIG_OF_BOARD_SETUP)
612 int ft_board_setup(void *blob, bd_t *bd)
613 {
614         return 0;
615 }
616 #endif
617
618 #ifdef CONFIG_SET_DFU_ALT_INFO
619 #define DFU_ALT_BUF_LEN SZ_1K
620
621 static void board_get_alt_info(const char *dev, char *buff)
622 {
623         char var_name[32] = "dfu_alt_info_";
624         int ret;
625
626         ALLOC_CACHE_ALIGN_BUFFER(char, tmp_alt, DFU_ALT_BUF_LEN);
627
628         /* name of env variable to read = dfu_alt_info_<dev> */
629         strcat(var_name, dev);
630         ret = env_get_f(var_name, tmp_alt, DFU_ALT_BUF_LEN);
631         if (ret) {
632                 if (buff[0] != '\0')
633                         strcat(buff, "&");
634                 strncat(buff, tmp_alt, DFU_ALT_BUF_LEN);
635         }
636 }
637
638 void set_dfu_alt_info(char *interface, char *devstr)
639 {
640         struct udevice *dev;
641
642         ALLOC_CACHE_ALIGN_BUFFER(char, buf, DFU_ALT_BUF_LEN);
643
644         if (env_get("dfu_alt_info"))
645                 return;
646
647         memset(buf, 0, sizeof(buf));
648
649         /* probe all MTD devices */
650         mtd_probe_devices();
651
652         board_get_alt_info("ram", buf);
653
654         if (!uclass_get_device(UCLASS_MMC, 0, &dev))
655                 board_get_alt_info("mmc0", buf);
656
657         if (!uclass_get_device(UCLASS_MMC, 1, &dev))
658                 board_get_alt_info("mmc1", buf);
659
660         if (!uclass_get_device(UCLASS_SPI_FLASH, 0, &dev))
661                 board_get_alt_info("nor0", buf);
662
663         env_set("dfu_alt_info", buf);
664         puts("DFU alt info setting: done\n");
665 }
666 #endif
667
668 static void board_copro_image_process(ulong fw_image, size_t fw_size)
669 {
670         int ret, id = 0; /* Copro id fixed to 0 as only one coproc on mp1 */
671
672         if (!rproc_is_initialized())
673                 if (rproc_init()) {
674                         printf("Remote Processor %d initialization failed\n",
675                                id);
676                         return;
677                 }
678
679         ret = rproc_load(id, fw_image, fw_size);
680         printf("Load Remote Processor %d with data@addr=0x%08lx %u bytes:%s\n",
681                id, fw_image, fw_size, ret ? " Failed!" : " Success!");
682
683         if (!ret) {
684                 rproc_start(id);
685                 env_set("copro_state", "booted");
686         }
687 }
688
689 U_BOOT_FIT_LOADABLE_HANDLER(IH_TYPE_COPRO, board_copro_image_process);