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 __attribute__((section(".data"))) = NULL;
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)
330 printf("EL Level:\tEL%d\n", current_el());
332 #if defined(CONFIG_FPGA) && defined(CONFIG_FPGA_ZYNQMPPL) && \
333 !defined(CONFIG_SPL_BUILD) || (defined(CONFIG_SPL_FPGA_SUPPORT) && \
334 defined(CONFIG_SPL_BUILD))
335 if (current_el() != 3) {
336 zynqmppl.name = zynqmp_get_silicon_idcode_name();
337 printf("Chip ID:\t%s\n", zynqmppl.name);
339 fpga_add(fpga_xilinx, &zynqmppl);
343 #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_WDT)
344 if (uclass_get_device_by_seq(UCLASS_WDT, 0, &watchdog_dev)) {
345 debug("Watchdog: Not found by seq!\n");
346 if (uclass_get_device(UCLASS_WDT, 0, &watchdog_dev)) {
347 puts("Watchdog: Not found!\n");
352 wdt_start(watchdog_dev, 0, 0);
353 puts("Watchdog: Started\n");
359 #ifdef CONFIG_WATCHDOG
360 /* Called by macro WATCHDOG_RESET */
361 void watchdog_reset(void)
363 # if !defined(CONFIG_SPL_BUILD)
364 static ulong next_reset;
370 now = timer_get_us();
372 /* Do not reset the watchdog too often */
373 if (now > next_reset) {
374 wdt_reset(watchdog_dev);
375 next_reset = now + 1000;
381 int board_early_init_r(void)
385 if (current_el() != 3)
388 val = readl(&crlapb_base->timestamp_ref_ctrl);
389 val &= ZYNQMP_CRL_APB_TIMESTAMP_REF_CTRL_CLKACT;
392 val = readl(&crlapb_base->timestamp_ref_ctrl);
393 val |= ZYNQMP_CRL_APB_TIMESTAMP_REF_CTRL_CLKACT;
394 writel(val, &crlapb_base->timestamp_ref_ctrl);
396 /* Program freq register in System counter */
397 writel(zynqmp_get_system_timer_freq(),
398 &iou_scntr_secure->base_frequency_id_register);
399 /* And enable system counter */
400 writel(ZYNQMP_IOU_SCNTR_COUNTER_CONTROL_REGISTER_EN,
401 &iou_scntr_secure->counter_control_register);
406 unsigned long do_go_exec(ulong (*entry)(int, char * const []), int argc,
411 if (current_el() > 1) {
414 armv8_switch_to_el1(0x0, 0, 0, 0, (unsigned long)entry,
417 printf("FAIL: current EL is not above EL1\n");
423 #if !defined(CONFIG_SYS_SDRAM_BASE) && !defined(CONFIG_SYS_SDRAM_SIZE)
424 int dram_init_banksize(void)
428 ret = fdtdec_setup_memory_banksize();
439 if (fdtdec_setup_mem_size_base() != 0)
445 int dram_init_banksize(void)
447 #if defined(CONFIG_NR_DRAM_BANKS)
448 gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
449 gd->bd->bi_dram[0].size = get_effective_memsize();
459 gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
460 CONFIG_SYS_SDRAM_SIZE);
466 void reset_cpu(ulong addr)
470 #if defined(CONFIG_BOARD_LATE_INIT)
471 static const struct {
474 } reset_reasons[] = {
475 { RESET_REASON_DEBUG_SYS, "DEBUG" },
476 { RESET_REASON_SOFT, "SOFT" },
477 { RESET_REASON_SRST, "SRST" },
478 { RESET_REASON_PSONLY, "PS-ONLY" },
479 { RESET_REASON_PMU, "PMU" },
480 { RESET_REASON_INTERNAL, "INTERNAL" },
481 { RESET_REASON_EXTERNAL, "EXTERNAL" },
485 static u32 reset_reason(void)
489 const char *reason = NULL;
491 ret = readl(&crlapb_base->reset_reason);
493 puts("Reset reason:\t");
495 for (i = 0; i < ARRAY_SIZE(reset_reasons); i++) {
496 if (ret & reset_reasons[i].bit) {
497 reason = reset_reasons[i].name;
498 printf("%s ", reset_reasons[i].name);
505 env_set("reset_reason", reason);
507 writel(~0, &crlapb_base->reset_reason);
512 static int set_fdtfile(void)
514 char *compatible, *fdtfile;
515 const char *suffix = ".dtb";
516 const char *vendor = "xilinx/";
518 if (env_get("fdtfile"))
521 compatible = (char *)fdt_getprop(gd->fdt_blob, 0, "compatible", NULL);
523 debug("Compatible: %s\n", compatible);
525 /* Discard vendor prefix */
526 strsep(&compatible, ",");
528 fdtfile = calloc(1, strlen(vendor) + strlen(compatible) +
533 sprintf(fdtfile, "%s%s%s", vendor, compatible, suffix);
535 env_set("fdtfile", fdtfile);
542 int board_late_init(void)
549 int env_targets_len = 0;
555 #if defined(CONFIG_USB_ETHER) && !defined(CONFIG_USB_GADGET_DOWNLOAD)
559 if (!(gd->flags & GD_FLG_ENV_DEFAULT)) {
560 debug("Saved variables - Skipping\n");
568 ret = zynqmp_mmio_read((ulong)&crlapb_base->boot_mode, ®);
572 if (reg >> BOOT_MODE_ALT_SHIFT)
573 reg >>= BOOT_MODE_ALT_SHIFT;
575 bootmode = reg & BOOT_MODES_MASK;
582 env_set("modeboot", "usb_dfu_spl");
587 env_set("modeboot", "jtagboot");
589 case QSPI_MODE_24BIT:
590 case QSPI_MODE_32BIT:
593 env_set("modeboot", "qspiboot");
598 env_set("modeboot", "emmcboot");
602 if (uclass_get_device_by_name(UCLASS_MMC,
603 "mmc@ff160000", &dev) &&
604 uclass_get_device_by_name(UCLASS_MMC,
605 "sdhci@ff160000", &dev)) {
606 puts("Boot from SD0 but without SD0 enabled!\n");
609 debug("mmc0 device found at %p, seq %d\n", dev, dev->seq);
613 env_set("modeboot", "sdboot");
620 if (uclass_get_device_by_name(UCLASS_MMC,
621 "mmc@ff170000", &dev) &&
622 uclass_get_device_by_name(UCLASS_MMC,
623 "sdhci@ff170000", &dev)) {
624 puts("Boot from SD1 but without SD1 enabled!\n");
627 debug("mmc1 device found at %p, seq %d\n", dev, dev->seq);
631 env_set("modeboot", "sdboot");
636 env_set("modeboot", "nandboot");
640 printf("Invalid Boot Mode:0x%x\n", bootmode);
645 bootseq_len = snprintf(NULL, 0, "%i", bootseq);
646 debug("Bootseq len: %x\n", bootseq_len);
650 * One terminating char + one byte for space between mode
651 * and default boot_targets
653 env_targets = env_get("boot_targets");
655 env_targets_len = strlen(env_targets);
657 new_targets = calloc(1, strlen(mode) + env_targets_len + 2 +
663 sprintf(new_targets, "%s%x %s", mode, bootseq,
664 env_targets ? env_targets : "");
666 sprintf(new_targets, "%s %s", mode,
667 env_targets ? env_targets : "");
669 env_set("boot_targets", new_targets);
679 puts("Board: Xilinx ZynqMP\n");