1 // SPDX-License-Identifier: GPL-2.0-only
3  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
31 #include <asm/dsp-impl.h>
38 /* Part of U-boot ABI: see head.S */
100 	if (info->arcver < 0x34)  in arcompact_mumbojumbo()
105 	n += scnprintf(buf + n, len - n, "processor [%d]\t: %s (%s ISA) %s%s%s\n",  in arcompact_mumbojumbo()
108 		       IS_AVAIL1(be, "[Big-Endian]"));  in arcompact_mumbojumbo()
114 		n += scnprintf(buf + n, len - n, "FPU\t\t: %s%s\n",  in arcompact_mumbojumbo()
120 	bpu_cache = 256 << (bpu.ent - 1);  in arcompact_mumbojumbo()
121 	bpu_pred = 256 << (bpu.ent - 1);  in arcompact_mumbojumbo()
123 	n += scnprintf(buf + n, len - n,  in arcompact_mumbojumbo()
131 		info->iccm.sz = 4096 << iccm.sz;	/* 8K to 512K */  in arcompact_mumbojumbo()
132 		info->iccm.base = iccm.base << 16;  in arcompact_mumbojumbo()
138 		info->dccm.sz = 2048 << dccm.sz;	/* 2K to 256K */  in arcompact_mumbojumbo()
141 		info->dccm.base = base & ~0xF;  in arcompact_mumbojumbo()
177 	if (info->arcver > 0x50 && info->arcver <= 0x53) {  in arcv2_mumbojumbo()
178 		release = arc_hs_rel[info->arcver - 0x51].str;  in arcv2_mumbojumbo()
185 		for (tbl = &arc_hs_ver54_rel[0]; tbl->id != 0xFF; tbl++) {  in arcv2_mumbojumbo()
186 			if (uarch.maj == tbl->id) {  in arcv2_mumbojumbo()
187 				release = tbl->str;  in arcv2_mumbojumbo()
204 	n += scnprintf(buf + n, len - n, "processor [%d]\t: %s %s (%s ISA) %s%s%s\n",  in arcv2_mumbojumbo()
206 		       IS_AVAIL1(isa.be, "[Big-Endian]"),  in arcv2_mumbojumbo()
207 		       IS_AVAIL3(dual_issue, dual_enb, " Dual-Issue "));  in arcv2_mumbojumbo()
211 	if (mpy.dsp)	/* OPT 7-9 */  in arcv2_mumbojumbo()
218 	n += scnprintf(buf + n, len - n, "ISA Extn\t: %s%s%s%s%s%s%s%s%s%s%s\n",  in arcv2_mumbojumbo()
243 	n += scnprintf(buf + n, len - n,  in arcv2_mumbojumbo()
253 		info->iccm.sz = 256 << iccm.sz00;	/* 512B to 16M */  in arcv2_mumbojumbo()
255 			info->iccm.sz <<= iccm.sz01;  in arcv2_mumbojumbo()
257 		info->iccm.base = base & 0xF0000000;  in arcv2_mumbojumbo()
263 		info->dccm.sz = 256 << dccm.sz0;  in arcv2_mumbojumbo()
265 			info->dccm.sz <<= dccm.sz1;  in arcv2_mumbojumbo()
267 		info->dccm.base = base & 0xF0000000;  in arcv2_mumbojumbo()
276 		n += scnprintf(buf + n, len - n, "Extn [ECC]\t: %s%s%s%s%s%s\n",  in arcv2_mumbojumbo()
278 				IS_AVAIL3(erp.dc,  !ctl.dpd, "DC "),  in arcv2_mumbojumbo()
304 	info->arcver = ident.family;  in arc_cpu_mumbojumbo()
311 		n += arcompact_mumbojumbo(c, info, buf + n, len - n);  in arc_cpu_mumbojumbo()
313 		n += arcv2_mumbojumbo(c, info, buf + n, len - n);  in arc_cpu_mumbojumbo()
316 	n += arc_mmu_mumbojumbo(c, buf + n, len - n);  in arc_cpu_mumbojumbo()
317 	n += arc_cache_mumbojumbo(c, buf + n, len - n);  in arc_cpu_mumbojumbo()
320 	info->t0 = timer.t0;  in arc_cpu_mumbojumbo()
321 	info->t1 = timer.t1;  in arc_cpu_mumbojumbo()
326 	n += scnprintf(buf + n, len - n,  in arc_cpu_mumbojumbo()
330 		       IS_AVAIL2(timer.rtc, "RTC [UP 64-bit] ", CONFIG_ARC_TIMERS_64BIT),  in arc_cpu_mumbojumbo()
331 		       IS_AVAIL2(mp.gfrc, "GFRC [SMP 64-bit] ", CONFIG_ARC_TIMERS_64BIT),  in arc_cpu_mumbojumbo()
347 		n += scnprintf(buf + n, len - n, "DEBUG\t\t: %s%s",  in arc_cpu_mumbojumbo()
351 			n += scnprintf(buf + n, len - n, "ActionPoint %d/%s",  in arc_cpu_mumbojumbo()
355 		n += scnprintf(buf + n, len - n, "\n");  in arc_cpu_mumbojumbo()
358 	if (info->dccm.sz || info->iccm.sz)  in arc_cpu_mumbojumbo()
359 		n += scnprintf(buf + n, len - n,  in arc_cpu_mumbojumbo()
361 			       info->dccm.base, TO_KB(info->dccm.sz),  in arc_cpu_mumbojumbo()
362 			       info->iccm.base, TO_KB(info->iccm.sz));  in arc_cpu_mumbojumbo()
386 	if (!info->t0)  in arc_chk_core_config()
389 	if (!info->t1)  in arc_chk_core_config()
397 	if ((unsigned int)__arc_dccm_base != info->dccm.base)  in arc_chk_core_config()
400 	if (CONFIG_ARC_DCCM_SZ * SZ_1K != info->dccm.sz)  in arc_chk_core_config()
405 	if (CONFIG_ARC_ICCM_SZ * SZ_1K != info->iccm.sz)  in arc_chk_core_config()
446 #define IGNORE_ARGS		"Ignore U-boot args: "
448 /* uboot_tag values for U-boot - kernel ABI revision 0; see head.S */
452 /* We always pass 0 as magic from U-boot */
479 	/* see if U-boot passed an external Device Tree blob */  in handle_uboot_args()
483 		/* external Device Tree blob is invalid - use embedded one */  in handle_uboot_args()
520 	if (machine_desc->init_early)  in setup_arch()
521 		machine_desc->init_early();  in setup_arch()
540  * Called from start_kernel() - boot CPU only
550 	if (machine_desc->init_machine)  in customize_machine()
551 		machine_desc->init_machine();  in customize_machine()
559 	if (machine_desc->init_late)  in init_late_machine()
560 		machine_desc->init_late();  in init_late_machine()
579 	unsigned long freq = 0;  in show_cpuinfo()  local
597 		freq = clk_get_rate(cpu_clk);  in show_cpuinfo()
599 	if (freq)  in show_cpuinfo()
601 			   freq / 1000000, (freq / 10000) % 100);  in show_cpuinfo()
604 		   loops_per_jiffy / (500000 / HZ),  in show_cpuinfo()
605 		   (loops_per_jiffy / (5000 / HZ)) % 100);  in show_cpuinfo()
619 	 * Callback returns cpu-id to iterator for show routine, NULL to stop.  in c_start()
620 	 * However since NULL is also a valid cpu-id (0), we use a round-about  in c_start()
622 	 * Encode cpu-id as 0xFFcccc, which is decoded by show routine.  in c_start()