1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2014 - 2015 Xilinx, Inc.
4 * Michal Simek <michal.simek@xilinx.com>
13 #include <asm/arch/clk.h>
14 #include <asm/arch/hardware.h>
15 #include <asm/arch/sys_proto.h>
16 #include <asm/arch/psu_init_gpl.h>
18 #include <dm/device.h>
19 #include <dm/uclass.h>
21 #include <dwc3-uboot.h>
25 DECLARE_GLOBAL_DATA_PTR;
27 #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_WDT)
28 static struct udevice *watchdog_dev;
31 #if defined(CONFIG_FPGA) && defined(CONFIG_FPGA_ZYNQMPPL) && \
32 !defined(CONFIG_SPL_BUILD)
33 static xilinx_desc zynqmppl = XILINX_ZYNQMP_DESC;
40 } zynqmp_devices[] = {
132 { /* For testing purpose only */
176 int chip_id(unsigned char id)
181 if (current_el() != 3) {
182 regs.regs[0] = ZYNQMP_SIP_SVC_CSU_DMA_CHIPID;
191 * regs[0][31:0] = status of the operation
192 * regs[0][63:32] = CSU.IDCODE register
193 * regs[1][31:0] = CSU.version register
194 * regs[1][63:32] = CSU.IDCODE2 register
198 regs.regs[0] = upper_32_bits(regs.regs[0]);
199 regs.regs[0] &= ZYNQMP_CSU_IDCODE_DEVICE_CODE_MASK |
200 ZYNQMP_CSU_IDCODE_SVD_MASK;
201 regs.regs[0] >>= ZYNQMP_CSU_IDCODE_SVD_SHIFT;
205 regs.regs[1] = lower_32_bits(regs.regs[1]);
206 regs.regs[1] &= ZYNQMP_CSU_SILICON_VER_MASK;
210 regs.regs[1] = lower_32_bits(regs.regs[1]);
211 regs.regs[1] >>= ZYNQMP_CSU_VERSION_EMPTY_SHIFT;
215 printf("%s, Invalid Req:0x%x\n", __func__, id);
220 val = readl(ZYNQMP_CSU_IDCODE_ADDR);
221 val &= ZYNQMP_CSU_IDCODE_DEVICE_CODE_MASK |
222 ZYNQMP_CSU_IDCODE_SVD_MASK;
223 val >>= ZYNQMP_CSU_IDCODE_SVD_SHIFT;
226 val = readl(ZYNQMP_CSU_VER_ADDR);
227 val &= ZYNQMP_CSU_SILICON_VER_MASK;
230 printf("%s, Invalid Req:0x%x\n", __func__, id);
237 #define ZYNQMP_VERSION_SIZE 9
238 #define ZYNQMP_PL_STATUS_BIT 9
239 #define ZYNQMP_IPDIS_VCU_BIT 8
240 #define ZYNQMP_PL_STATUS_MASK BIT(ZYNQMP_PL_STATUS_BIT)
241 #define ZYNQMP_CSU_VERSION_MASK ~(ZYNQMP_PL_STATUS_MASK)
242 #define ZYNQMP_CSU_VCUDIS_VER_MASK ZYNQMP_CSU_VERSION_MASK & \
243 ~BIT(ZYNQMP_IPDIS_VCU_BIT)
244 #define MAX_VARIANTS_EV 3
246 #if defined(CONFIG_FPGA) && defined(CONFIG_FPGA_ZYNQMPPL) && \
247 !defined(CONFIG_SPL_BUILD)
248 static char *zynqmp_get_silicon_idcode_name(void)
252 static char name[ZYNQMP_VERSION_SIZE];
254 id = chip_id(IDCODE);
255 ver = chip_id(IDCODE2);
257 for (i = 0; i < ARRAY_SIZE(zynqmp_devices); i++) {
258 if (zynqmp_devices[i].id == id) {
259 if (zynqmp_devices[i].evexists &&
260 !(ver & ZYNQMP_PL_STATUS_MASK))
262 if (zynqmp_devices[i].ver == (ver &
263 ZYNQMP_CSU_VERSION_MASK))
268 if (i >= ARRAY_SIZE(zynqmp_devices))
271 strncat(name, "zu", 2);
272 if (!zynqmp_devices[i].evexists ||
273 (ver & ZYNQMP_PL_STATUS_MASK)) {
274 strncat(name, zynqmp_devices[i].name,
275 ZYNQMP_VERSION_SIZE - 3);
280 * Here we are means, PL not powered up and ev variant
281 * exists. So, we need to ignore VCU disable bit(8) in
282 * version and findout if its CG or EG/EV variant.
284 for (j = 0; j < MAX_VARIANTS_EV; j++, i++) {
285 if ((zynqmp_devices[i].ver & ~BIT(ZYNQMP_IPDIS_VCU_BIT)) ==
286 (ver & ZYNQMP_CSU_VCUDIS_VER_MASK)) {
287 strncat(name, zynqmp_devices[i].name,
288 ZYNQMP_VERSION_SIZE - 3);
293 if (j >= MAX_VARIANTS_EV)
296 if (strstr(name, "eg") || strstr(name, "ev")) {
297 buf = strstr(name, "e");
305 int board_early_init_f(void)
308 #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_CLK_ZYNQMP)
311 pm_api_version = zynqmp_pmufw_version();
312 printf("PMUFW:\tv%d.%d\n",
313 pm_api_version >> ZYNQMP_PM_VERSION_MAJOR_SHIFT,
314 pm_api_version & ZYNQMP_PM_VERSION_MINOR_MASK);
316 if (pm_api_version < ZYNQMP_PM_VERSION)
317 panic("PMUFW version error. Expected: v%d.%d\n",
318 ZYNQMP_PM_VERSION_MAJOR, ZYNQMP_PM_VERSION_MINOR);
321 #if defined(CONFIG_ZYNQMP_PSU_INIT_ENABLED)
325 #if defined(CONFIG_WDT) && !defined(CONFIG_SPL_BUILD)
326 /* bss is not cleared at time when watchdog_reset() is called */
335 printf("EL Level:\tEL%d\n", current_el());
337 #if defined(CONFIG_FPGA) && defined(CONFIG_FPGA_ZYNQMPPL) && \
338 !defined(CONFIG_SPL_BUILD) || (defined(CONFIG_SPL_FPGA_SUPPORT) && \
339 defined(CONFIG_SPL_BUILD))
340 if (current_el() != 3) {
341 zynqmppl.name = zynqmp_get_silicon_idcode_name();
342 printf("Chip ID:\t%s\n", zynqmppl.name);
344 fpga_add(fpga_xilinx, &zynqmppl);
348 #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_WDT)
349 if (uclass_get_device_by_seq(UCLASS_WDT, 0, &watchdog_dev)) {
350 debug("Watchdog: Not found by seq!\n");
351 if (uclass_get_device(UCLASS_WDT, 0, &watchdog_dev)) {
352 puts("Watchdog: Not found!\n");
357 wdt_start(watchdog_dev, 0, 0);
358 puts("Watchdog: Started\n");
364 #ifdef CONFIG_WATCHDOG
365 /* Called by macro WATCHDOG_RESET */
366 void watchdog_reset(void)
368 # if !defined(CONFIG_SPL_BUILD)
369 static ulong next_reset;
375 now = timer_get_us();
377 /* Do not reset the watchdog too often */
378 if (now > next_reset) {
379 wdt_reset(watchdog_dev);
380 next_reset = now + 1000;
386 int board_early_init_r(void)
390 if (current_el() != 3)
393 val = readl(&crlapb_base->timestamp_ref_ctrl);
394 val &= ZYNQMP_CRL_APB_TIMESTAMP_REF_CTRL_CLKACT;
397 val = readl(&crlapb_base->timestamp_ref_ctrl);
398 val |= ZYNQMP_CRL_APB_TIMESTAMP_REF_CTRL_CLKACT;
399 writel(val, &crlapb_base->timestamp_ref_ctrl);
401 /* Program freq register in System counter */
402 writel(zynqmp_get_system_timer_freq(),
403 &iou_scntr_secure->base_frequency_id_register);
404 /* And enable system counter */
405 writel(ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_EN,
406 &iou_scntr_secure->counter_control_register);
411 unsigned long do_go_exec(ulong (*entry)(int, char * const []), int argc,
416 if (current_el() > 1) {
419 armv8_switch_to_el1(0x0, 0, 0, 0, (unsigned long)entry,
422 printf("FAIL: current EL is not above EL1\n");
428 #if !defined(CONFIG_SYS_SDRAM_BASE) && !defined(CONFIG_SYS_SDRAM_SIZE)
429 int dram_init_banksize(void)
433 ret = fdtdec_setup_memory_banksize();
444 if (fdtdec_setup_mem_size_base() != 0)
450 int dram_init_banksize(void)
452 #if defined(CONFIG_NR_DRAM_BANKS)
453 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
454 gd->bd->bi_dram[0].size = get_effective_memsize();
464 gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
465 CONFIG_SYS_SDRAM_SIZE);
471 void reset_cpu(ulong addr)
475 #if defined(CONFIG_BOARD_LATE_INIT)
476 static const struct {
479 } reset_reasons[] = {
480 { RESET_REASON_DEBUG_SYS, "DEBUG" },
481 { RESET_REASON_SOFT, "SOFT" },
482 { RESET_REASON_SRST, "SRST" },
483 { RESET_REASON_PSONLY, "PS-ONLY" },
484 { RESET_REASON_PMU, "PMU" },
485 { RESET_REASON_INTERNAL, "INTERNAL" },
486 { RESET_REASON_EXTERNAL, "EXTERNAL" },
490 static u32 reset_reason(void)
494 const char *reason = NULL;
496 ret = readl(&crlapb_base->reset_reason);
498 puts("Reset reason:\t");
500 for (i = 0; i < ARRAY_SIZE(reset_reasons); i++) {
501 if (ret & reset_reasons[i].bit) {
502 reason = reset_reasons[i].name;
503 printf("%s ", reset_reasons[i].name);
510 env_set("reset_reason", reason);
512 writel(~0, &crlapb_base->reset_reason);
517 static int set_fdtfile(void)
519 char *compatible, *fdtfile;
520 const char *suffix = ".dtb";
521 const char *vendor = "xilinx/";
523 if (env_get("fdtfile"))
526 compatible = (char *)fdt_getprop(gd->fdt_blob, 0, "compatible", NULL);
528 debug("Compatible: %s\n", compatible);
530 /* Discard vendor prefix */
531 strsep(&compatible, ",");
533 fdtfile = calloc(1, strlen(vendor) + strlen(compatible) +
538 sprintf(fdtfile, "%s%s%s", vendor, compatible, suffix);
540 env_set("fdtfile", fdtfile);
547 int board_late_init(void)
554 int env_targets_len = 0;
560 #if defined(CONFIG_USB_ETHER) && !defined(CONFIG_USB_GADGET_DOWNLOAD)
564 if (!(gd->flags & GD_FLG_ENV_DEFAULT)) {
565 debug("Saved variables - Skipping\n");
573 ret = zynqmp_mmio_read((ulong)&crlapb_base->boot_mode, ®);
577 if (reg >> BOOT_MODE_ALT_SHIFT)
578 reg >>= BOOT_MODE_ALT_SHIFT;
580 bootmode = reg & BOOT_MODES_MASK;
587 env_set("modeboot", "usb_dfu_spl");
592 env_set("modeboot", "jtagboot");
594 case QSPI_MODE_24BIT:
595 case QSPI_MODE_32BIT:
598 env_set("modeboot", "qspiboot");
603 env_set("modeboot", "emmcboot");
607 if (uclass_get_device_by_name(UCLASS_MMC,
608 "mmc@ff160000", &dev) &&
609 uclass_get_device_by_name(UCLASS_MMC,
610 "sdhci@ff160000", &dev)) {
611 puts("Boot from SD0 but without SD0 enabled!\n");
614 debug("mmc0 device found at %p, seq %d\n", dev, dev->seq);
618 env_set("modeboot", "sdboot");
625 if (uclass_get_device_by_name(UCLASS_MMC,
626 "mmc@ff170000", &dev) &&
627 uclass_get_device_by_name(UCLASS_MMC,
628 "sdhci@ff170000", &dev)) {
629 puts("Boot from SD1 but without SD1 enabled!\n");
632 debug("mmc1 device found at %p, seq %d\n", dev, dev->seq);
636 env_set("modeboot", "sdboot");
641 env_set("modeboot", "nandboot");
645 printf("Invalid Boot Mode:0x%x\n", bootmode);
650 bootseq_len = snprintf(NULL, 0, "%i", bootseq);
651 debug("Bootseq len: %x\n", bootseq_len);
655 * One terminating char + one byte for space between mode
656 * and default boot_targets
658 env_targets = env_get("boot_targets");
660 env_targets_len = strlen(env_targets);
662 new_targets = calloc(1, strlen(mode) + env_targets_len + 2 +
668 sprintf(new_targets, "%s%x %s", mode, bootseq,
669 env_targets ? env_targets : "");
671 sprintf(new_targets, "%s %s", mode,
672 env_targets ? env_targets : "");
674 env_set("boot_targets", new_targets);
684 puts("Board: Xilinx ZynqMP\n");