1 // SPDX-License-Identifier: GPL-2.0+
5 * Peng Fan <peng.fan@nxp.com>
12 #include <asm/arch/imx-regs.h>
13 #include <asm/global_data.h>
15 #include <asm/arch/clock.h>
16 #include <asm/arch/ccm_regs.h>
17 #include <asm/arch/sys_proto.h>
18 #include <asm/arch/trdc.h>
19 #include <asm/mach-imx/boot_mode.h>
20 #include <asm/mach-imx/syscounter.h>
21 #include <asm/armv8/mmu.h>
22 #include <dm/device.h>
23 #include <dm/device_compat.h>
24 #include <dm/uclass.h>
26 #include <env_internal.h>
28 #include <fdt_support.h>
29 #include <imx_thermal.h>
30 #include <linux/bitops.h>
31 #include <linux/bitfield.h>
32 #include <linux/delay.h>
34 #include <asm/setup.h>
35 #include <asm/bootm.h>
36 #include <asm/arch-imx/cpu.h>
37 #include <asm/mach-imx/ele_api.h>
39 #include <asm/arch/ddr.h>
41 DECLARE_GLOBAL_DATA_PTR;
43 struct rom_api *g_rom_api = (struct rom_api *)0x1980;
45 #ifdef CONFIG_ENV_IS_IN_MMC
46 __weak int board_mmc_get_env_dev(int devno)
51 int mmc_get_env_dev(void)
58 ret = rom_api_query_boot_infor(QUERY_BT_DEV, &boot);
60 if (ret != ROM_API_OKAY) {
61 puts("ROMAPI: failure at query_boot_info\n");
62 return CONFIG_SYS_MMC_ENV_DEV;
65 boot_type = boot >> 16;
66 boot_instance = (boot >> 8) & 0xff;
68 debug("boot_type %d, instance %d\n", boot_type, boot_instance);
70 /* If not boot from sd/mmc, use default value */
71 if (boot_type != BOOT_TYPE_SD && boot_type != BOOT_TYPE_MMC)
72 return env_get_ulong("mmcdev", 10, CONFIG_SYS_MMC_ENV_DEV);
74 return board_mmc_get_env_dev(boot_instance);
79 * SPEED_GRADE[5:4] SPEED_GRADE[3:0] MHz
97 u32 get_cpu_speed_grade_hz(void)
102 fuse_read(2, 3, &val);
103 val = FIELD_GET(SPEED_GRADING_MASK, val) & 0xF;
105 speed = MHZ(2300) - val * MHZ(100);
108 max_speed = MHZ(1700);
110 /* In case the fuse of speed grade not programmed */
111 if (speed > max_speed)
118 * `00` - Consumer 0C to 95C
119 * `01` - Ext. Consumer -20C to 105C
120 * `10` - Industrial -40C to 105C
121 * `11` - Automotive -40C to 125C
123 u32 get_cpu_temp_grade(int *minc, int *maxc)
127 fuse_read(2, 3, &val);
128 val = FIELD_GET(MARKETING_GRADING_MASK, val);
131 if (val == TEMP_AUTOMOTIVE) {
134 } else if (val == TEMP_INDUSTRIAL) {
137 } else if (val == TEMP_EXTCOMMERCIAL) {
139 /* imx93 only has extended industrial*/
154 static void set_cpu_info(struct ele_get_info_data *info)
156 gd->arch.soc_rev = info->soc;
157 gd->arch.lifecycle = info->lc;
158 memcpy((void *)&gd->arch.uid, &info->uid, 4 * sizeof(u32));
161 static u32 get_cpu_variant_type(u32 type)
164 u32 val = readl((ulong)FSB_BASE_ADDR + 0x8000 + (19 << 2));
165 u32 val2 = readl((ulong)FSB_BASE_ADDR + 0x8000 + (20 << 2));
166 bool npu_disable = !!(val & BIT(13));
167 bool core1_disable = !!(val & BIT(15));
168 u32 pack_9x9_fused = BIT(4) | BIT(17) | BIT(19) | BIT(24);
170 if ((val2 & pack_9x9_fused) == pack_9x9_fused)
171 type = MXC_CPU_IMX9322;
173 if (npu_disable && core1_disable)
175 else if (npu_disable)
177 else if (core1_disable)
183 u32 get_cpu_rev(void)
185 u32 rev = (gd->arch.soc_rev >> 24) - 0xa0;
187 return (get_cpu_variant_type(MXC_CPU_IMX93) << 12) |
188 (CHIP_REV_1_0 + rev);
191 #define UNLOCK_WORD 0xD928C520 /* unlock word */
192 #define REFRESH_WORD 0xB480A602 /* refresh word */
194 static void disable_wdog(void __iomem *wdog_base)
196 u32 val_cs = readl(wdog_base + 0x00);
198 if (!(val_cs & 0x80))
201 /* default is 32bits cmd */
202 writel(REFRESH_WORD, (wdog_base + 0x04)); /* Refresh the CNT */
204 if (!(val_cs & 0x800)) {
205 writel(UNLOCK_WORD, (wdog_base + 0x04));
206 while (!(readl(wdog_base + 0x00) & 0x800))
209 writel(0x0, (wdog_base + 0x0C)); /* Set WIN to 0 */
210 writel(0x400, (wdog_base + 0x08)); /* Set timeout to default 0x400 */
211 writel(0x2120, (wdog_base + 0x00)); /* Disable it and set update */
213 while (!(readl(wdog_base + 0x00) & 0x400))
221 disable_wdog((void __iomem *)WDG3_BASE_ADDR);
222 disable_wdog((void __iomem *)WDG4_BASE_ADDR);
223 disable_wdog((void __iomem *)WDG5_BASE_ADDR);
225 src_val = readl(0x54460018); /* reset mask */
227 writel(src_val, 0x54460018);
230 static struct mm_region imx93_mem_map[] = {
236 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
237 PTE_BLOCK_OUTER_SHARE
240 .virt = 0x201c0000UL,
241 .phys = 0x201c0000UL,
243 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
244 PTE_BLOCK_NON_SHARE |
245 PTE_BLOCK_PXN | PTE_BLOCK_UXN
248 .virt = 0x20480000UL,
249 .phys = 0x20480000UL,
251 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
252 PTE_BLOCK_OUTER_SHARE
255 .virt = 0x40000000UL,
256 .phys = 0x40000000UL,
257 .size = 0x40000000UL,
258 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
259 PTE_BLOCK_NON_SHARE |
260 PTE_BLOCK_PXN | PTE_BLOCK_UXN
262 /* Flexible Serial Peripheral Interface */
263 .virt = 0x28000000UL,
264 .phys = 0x28000000UL,
265 .size = 0x30000000UL,
266 .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
267 PTE_BLOCK_NON_SHARE |
268 PTE_BLOCK_PXN | PTE_BLOCK_UXN
271 .virt = 0x80000000UL,
272 .phys = 0x80000000UL,
273 .size = PHYS_SDRAM_SIZE,
274 .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
275 PTE_BLOCK_OUTER_SHARE
277 /* empty entrie to split table entry 5 if needed when TEEs are used */
280 /* List terminator */
285 struct mm_region *mem_map = imx93_mem_map;
287 static unsigned int imx9_find_dram_entry_in_mem_map(void)
291 for (i = 0; i < ARRAY_SIZE(imx93_mem_map); i++)
292 if (imx93_mem_map[i].phys == CFG_SYS_SDRAM_BASE)
295 hang(); /* Entry not found, this must never happen. */
298 void enable_caches(void)
300 /* If OPTEE runs, remove OPTEE memory from MMU table to avoid speculative prefetch
301 * If OPTEE does not run, still update the MMU table according to dram banks structure
302 * to set correct dram size from board_phys_sdram_size
306 * please make sure that entry initial value matches
307 * imx93_mem_map for DRAM1
309 int entry = imx9_find_dram_entry_in_mem_map();
310 u64 attrs = imx93_mem_map[entry].attrs;
312 while (i < CONFIG_NR_DRAM_BANKS &&
313 entry < ARRAY_SIZE(imx93_mem_map)) {
314 if (gd->bd->bi_dram[i].start == 0)
316 imx93_mem_map[entry].phys = gd->bd->bi_dram[i].start;
317 imx93_mem_map[entry].virt = gd->bd->bi_dram[i].start;
318 imx93_mem_map[entry].size = gd->bd->bi_dram[i].size;
319 imx93_mem_map[entry].attrs = attrs;
320 debug("Added memory mapping (%d): %llx %llx\n", entry,
321 imx93_mem_map[entry].phys, imx93_mem_map[entry].size);
329 __weak int board_phys_sdram_size(phys_size_t *size)
331 phys_size_t start, end;
337 val = readl(REG_DDR_CS0_BNDS);
338 start = (val >> 16) << 24;
339 end = (val & 0xFFFF);
340 end = end ? end + 1 : 0;
344 val = readl(REG_DDR_CS1_BNDS);
345 start = (val >> 16) << 24;
346 end = (val & 0xFFFF);
347 end = end ? end + 1 : 0;
349 *size += end - start;
356 phys_size_t sdram_size;
359 ret = board_phys_sdram_size(&sdram_size);
363 /* rom_pointer[1] contains the size of TEE occupies */
364 if (!IS_ENABLED(CONFIG_SPL_BUILD) && rom_pointer[1])
365 gd->ram_size = sdram_size - rom_pointer[1];
367 gd->ram_size = sdram_size;
372 int dram_init_banksize(void)
376 phys_size_t sdram_size;
377 phys_size_t sdram_b1_size, sdram_b2_size;
379 ret = board_phys_sdram_size(&sdram_size);
383 /* Bank 1 can't cross over 4GB space */
384 if (sdram_size > 0x80000000) {
385 sdram_b1_size = 0x80000000;
386 sdram_b2_size = sdram_size - 0x80000000;
388 sdram_b1_size = sdram_size;
392 gd->bd->bi_dram[bank].start = PHYS_SDRAM;
393 if (!IS_ENABLED(CONFIG_SPL_BUILD) && rom_pointer[1]) {
394 phys_addr_t optee_start = (phys_addr_t)rom_pointer[0];
395 phys_size_t optee_size = (size_t)rom_pointer[1];
397 gd->bd->bi_dram[bank].size = optee_start - gd->bd->bi_dram[bank].start;
398 if ((optee_start + optee_size) < (PHYS_SDRAM + sdram_b1_size)) {
399 if (++bank >= CONFIG_NR_DRAM_BANKS) {
400 puts("CONFIG_NR_DRAM_BANKS is not enough\n");
404 gd->bd->bi_dram[bank].start = optee_start + optee_size;
405 gd->bd->bi_dram[bank].size = PHYS_SDRAM +
406 sdram_b1_size - gd->bd->bi_dram[bank].start;
409 gd->bd->bi_dram[bank].size = sdram_b1_size;
413 if (++bank >= CONFIG_NR_DRAM_BANKS) {
414 puts("CONFIG_NR_DRAM_BANKS is not enough for SDRAM_2\n");
417 gd->bd->bi_dram[bank].start = 0x100000000UL;
418 gd->bd->bi_dram[bank].size = sdram_b2_size;
424 phys_size_t get_effective_memsize(void)
427 phys_size_t sdram_size;
428 phys_size_t sdram_b1_size;
430 ret = board_phys_sdram_size(&sdram_size);
432 /* Bank 1 can't cross over 4GB space */
433 if (sdram_size > 0x80000000)
434 sdram_b1_size = 0x80000000;
436 sdram_b1_size = sdram_size;
438 if (!IS_ENABLED(CONFIG_SPL_BUILD) && rom_pointer[1]) {
439 /* We will relocate u-boot to top of dram1. TEE position has two cases:
440 * 1. At the top of dram1, Then return the size removed optee size.
441 * 2. In the middle of dram1, return the size of dram1.
443 if ((rom_pointer[0] + rom_pointer[1]) == (PHYS_SDRAM + sdram_b1_size))
444 return ((phys_addr_t)rom_pointer[0] - PHYS_SDRAM);
447 return sdram_b1_size;
449 return PHYS_SDRAM_SIZE;
453 void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
459 ret = fuse_read(39, 3, &val[0]);
463 ret = fuse_read(39, 4, &val[1]);
467 mac[0] = val[1] >> 8;
469 mac[2] = val[0] >> 24;
470 mac[3] = val[0] >> 16;
471 mac[4] = val[0] >> 8;
475 ret = fuse_read(39, 5, &val[0]);
479 ret = fuse_read(39, 4, &val[1]);
483 mac[0] = val[1] >> 24;
484 mac[1] = val[1] >> 16;
485 mac[2] = val[0] >> 24;
486 mac[3] = val[0] >> 16;
487 mac[4] = val[0] >> 8;
491 debug("%s: MAC%d: %02x.%02x.%02x.%02x.%02x.%02x\n",
492 __func__, dev_id, mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
496 printf("%s: fuse read err: %d\n", __func__, ret);
499 int print_cpuinfo(void)
503 cpurev = get_cpu_rev();
505 printf("CPU: i.MX93 rev%d.%d\n", (cpurev & 0x000F0) >> 4, (cpurev & 0x0000F) >> 0);
510 int ft_system_setup(void *blob, struct bd_info *bd)
515 #if defined(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG)
516 void get_board_serial(struct tag_serialnr *serialnr)
518 printf("UID: 0x%x 0x%x 0x%x 0x%x\n",
519 gd->arch.uid[0], gd->arch.uid[1], gd->arch.uid[2], gd->arch.uid[3]);
521 serialnr->low = gd->arch.uid[0];
522 serialnr->high = gd->arch.uid[3];
526 static void save_reset_cause(void)
528 struct src_general_regs *src = (struct src_general_regs *)SRC_GLOBAL_RBASE;
529 u32 srsr = readl(&src->srsr);
531 /* clear srsr in sec mode */
532 writel(srsr, &src->srsr);
534 /* Save value to GPR1 to pass to nonsecure */
535 writel(srsr, &src->gpr[0]);
538 int arch_cpu_init(void)
540 if (IS_ENABLED(CONFIG_SPL_BUILD)) {
548 /* Save SRC SRSR to GPR1 and clear it */
555 int imx9_probe_mu(void)
557 struct udevice *devp;
560 struct ele_get_info_data info;
562 node = fdt_node_offset_by_compatible(gd->fdt_blob, -1, "fsl,imx93-mu-s4");
564 ret = uclass_get_device_by_of_offset(UCLASS_MISC, node, &devp);
568 if (gd->flags & GD_FLG_RELOC)
571 ret = ele_get_info(&info, &res);
579 EVENT_SPY_SIMPLE(EVT_DM_POST_INIT_F, imx9_probe_mu);
583 #ifdef CONFIG_SPL_BUILD
584 struct sctr_regs *sctr = (struct sctr_regs *)SYSCNT_CTRL_BASE_ADDR;
585 unsigned long freq = readl(&sctr->cntfid0);
587 /* Update with accurate clock frequency */
588 asm volatile("msr cntfrq_el0, %0" : : "r" (freq) : "memory");
590 clrsetbits_le32(&sctr->cntcr, SC_CNTCR_FREQ0 | SC_CNTCR_FREQ1,
591 SC_CNTCR_FREQ0 | SC_CNTCR_ENABLE | SC_CNTCR_HDBG);
600 enum env_location env_get_location(enum env_operation op, int prio)
602 enum boot_device dev = get_boot_device();
609 if (CONFIG_IS_ENABLED(ENV_IS_IN_SPI_FLASH))
610 return ENVL_SPI_FLASH;
618 if (CONFIG_IS_ENABLED(ENV_IS_IN_MMC))
620 else if (CONFIG_IS_ENABLED(ENV_IS_IN_EXT4))
622 else if (CONFIG_IS_ENABLED(ENV_IS_IN_FAT))
630 static int mix_power_init(enum mix_power_domain pd)
632 enum src_mix_slice_id mix_id;
633 enum src_mem_slice_id mem_id;
634 struct src_mix_slice_regs *mix_regs;
635 struct src_mem_slice_regs *mem_regs;
636 struct src_general_regs *global_regs;
640 case MIX_PD_MEDIAMIX:
641 mix_id = SRC_MIX_MEDIA;
642 mem_id = SRC_MEM_MEDIA;
645 /* Enable ELE handshake */
646 struct blk_ctrl_s_aonmix_regs *s_regs =
647 (struct blk_ctrl_s_aonmix_regs *)BLK_CTRL_S_ANOMIX_BASE_ADDR;
649 setbits_le32(&s_regs->lp_handshake[0], BIT(13));
657 mix_id = SRC_MIX_DDRMIX;
658 mem_id = SRC_MEM_DDRMIX;
665 mix_regs = (struct src_mix_slice_regs *)(ulong)(SRC_IPS_BASE_ADDR + 0x400 * (mix_id + 1));
667 (struct src_mem_slice_regs *)(ulong)(SRC_IPS_BASE_ADDR + 0x3800 + 0x400 * mem_id);
668 global_regs = (struct src_general_regs *)(ulong)SRC_GLOBAL_RBASE;
670 /* Allow NS to set it */
671 setbits_le32(&mix_regs->authen_ctrl, BIT(9));
673 clrsetbits_le32(&mix_regs->psw_ack_ctrl[0], BIT(28), BIT(29));
675 /* mix reset will be held until boot core write this bit to 1 */
676 setbits_le32(&global_regs->scr, scr);
678 /* Enable mem in Low power auto sequence */
679 setbits_le32(&mem_regs->mem_ctrl, BIT(2));
681 /* Set the power down state */
682 val = readl(&mix_regs->func_stat);
683 if (val & SRC_MIX_SLICE_FUNC_STAT_PSW_STAT) {
684 /* The mix is default power off, power down it to make PDN_SFT bit
685 * aligned with FUNC STAT
687 setbits_le32(&mix_regs->slice_sw_ctrl, BIT(31));
688 val = readl(&mix_regs->func_stat);
690 /* Since PSW_STAT is 1, can't be used for power off status (SW_CTRL BIT31 set)) */
691 /* Check the MEM STAT change to ensure SSAR is completed */
692 while (!(val & SRC_MIX_SLICE_FUNC_STAT_MEM_STAT))
693 val = readl(&mix_regs->func_stat);
695 /* wait few ipg clock cycles to ensure FSM done and power off status is correct */
696 /* About 5 cycles at 24Mhz, 1us is enough */
699 /* The mix is default power on, Do mix power cycle */
700 setbits_le32(&mix_regs->slice_sw_ctrl, BIT(31));
701 val = readl(&mix_regs->func_stat);
702 while (!(val & SRC_MIX_SLICE_FUNC_STAT_PSW_STAT))
703 val = readl(&mix_regs->func_stat);
707 clrbits_le32(&mix_regs->slice_sw_ctrl, BIT(31));
708 val = readl(&mix_regs->func_stat);
709 while (val & SRC_MIX_SLICE_FUNC_STAT_ISO_STAT)
710 val = readl(&mix_regs->func_stat);
715 void disable_isolation(void)
717 struct src_general_regs *global_regs = (struct src_general_regs *)(ulong)SRC_GLOBAL_RBASE;
718 /* clear isolation for usbphy, dsi, csi*/
719 writel(0x0, &global_regs->sp_iso_ctrl);
722 void soc_power_init(void)
724 mix_power_init(MIX_PD_MEDIAMIX);
725 mix_power_init(MIX_PD_MLMIX);
730 bool m33_is_rom_kicked(void)
732 struct blk_ctrl_s_aonmix_regs *s_regs =
733 (struct blk_ctrl_s_aonmix_regs *)BLK_CTRL_S_ANOMIX_BASE_ADDR;
735 if (!(readl(&s_regs->m33_cfg) & BIT(2)))
741 int m33_prepare(void)
743 struct src_mix_slice_regs *mix_regs =
744 (struct src_mix_slice_regs *)(ulong)(SRC_IPS_BASE_ADDR + 0x400 * (SRC_MIX_CM33 + 1));
745 struct src_general_regs *global_regs =
746 (struct src_general_regs *)(ulong)SRC_GLOBAL_RBASE;
747 struct blk_ctrl_s_aonmix_regs *s_regs =
748 (struct blk_ctrl_s_aonmix_regs *)BLK_CTRL_S_ANOMIX_BASE_ADDR;
751 if (m33_is_rom_kicked())
754 /* Release reset of M33 */
755 setbits_le32(&global_regs->scr, BIT(0));
757 /* Check the reset released in M33 MIX func stat */
758 val = readl(&mix_regs->func_stat);
759 while (!(val & SRC_MIX_SLICE_FUNC_STAT_RST_STAT))
760 val = readl(&mix_regs->func_stat);
762 /* Release ELE TROUT */
763 ele_release_m33_trout();
765 /* Mask WDOG1 IRQ from A55, we use it for M33 reset */
766 setbits_le32(&s_regs->ca55_irq_mask[1], BIT(6));
768 /* Turn on WDOG1 clock */
769 ccm_lpcg_on(CCGR_WDG1, 1);
771 /* Set ELE LP handshake for M33 reset */
772 setbits_le32(&s_regs->lp_handshake[0], BIT(6));
774 /* Clear M33 TCM for ECC */
775 memset((void *)(ulong)0x201e0000, 0, 0x40000);
780 int psci_sysreset_get_status(struct udevice *dev, char *buf, int size)
782 static const char *reset_cause[] = {
801 struct src_general_regs *src = (struct src_general_regs *)SRC_GLOBAL_RBASE;
806 srsr = readl(&src->gpr[0]);
808 for (i = ARRAY_SIZE(reset_cause); i > 0; i--) {
809 if (srsr & (BIT(i - 1)))
813 res = snprintf(buf, size, "Reset Status: %s\n", i ? reset_cause[i - 1] : "unknown reset");
815 dev_err(dev, "Could not write reset status message (err = %d)\n", res);