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()
175 	if (info->arcver > 0x50 && info->arcver <= 0x53) {  in arcv2_mumbojumbo()
176 		release = arc_hs_rel[info->arcver - 0x51].str;  in arcv2_mumbojumbo()
183 		for (tbl = &arc_hs_ver54_rel[0]; tbl->id != 0xFF; tbl++) {  in arcv2_mumbojumbo()
184 			if (uarch.maj == tbl->id) {  in arcv2_mumbojumbo()
185 				release = tbl->str;  in arcv2_mumbojumbo()
202 	n += scnprintf(buf + n, len - n, "processor [%d]\t: %s %s (%s ISA) %s%s%s\n",  in arcv2_mumbojumbo()
204 		       IS_AVAIL1(isa.be, "[Big-Endian]"),  in arcv2_mumbojumbo()
205 		       IS_AVAIL3(dual_issue, dual_enb, " Dual-Issue "));  in arcv2_mumbojumbo()
209 	if (mpy.dsp)	/* OPT 7-9 */  in arcv2_mumbojumbo()
210 		mpy_opt = mpy.dsp + 6;  in arcv2_mumbojumbo()
216 	n += scnprintf(buf + n, len - n, "ISA Extn\t: %s%s%s%s%s%s%s%s%s%s%s\n",  in arcv2_mumbojumbo()
241 	n += scnprintf(buf + n, len - n,  in arcv2_mumbojumbo()
251 		info->iccm.sz = 256 << iccm.sz00;	/* 512B to 16M */  in arcv2_mumbojumbo()
253 			info->iccm.sz <<= iccm.sz01;  in arcv2_mumbojumbo()
255 		info->iccm.base = base & 0xF0000000;  in arcv2_mumbojumbo()
261 		info->dccm.sz = 256 << dccm.sz0;  in arcv2_mumbojumbo()
263 			info->dccm.sz <<= dccm.sz1;  in arcv2_mumbojumbo()
265 		info->dccm.base = base & 0xF0000000;  in arcv2_mumbojumbo()
274 		n += scnprintf(buf + n, len - n, "Extn [ECC]\t: %s%s%s%s%s%s\n",  in arcv2_mumbojumbo()
281 	present = fpu.sp | fpu.dp | mpy.dsp;	/* DSP and/or FPU */  in arcv2_mumbojumbo()
292 	struct bcr_timer timer;  in arc_cpu_mumbojumbo()  local
302 	info->arcver = ident.family;  in arc_cpu_mumbojumbo()
309 		n += arcompact_mumbojumbo(c, info, buf + n, len - n);  in arc_cpu_mumbojumbo()
311 		n += arcv2_mumbojumbo(c, info, buf + n, len - n);  in arc_cpu_mumbojumbo()
314 	n += arc_mmu_mumbojumbo(c, buf + n, len - n);  in arc_cpu_mumbojumbo()
315 	n += arc_cache_mumbojumbo(c, buf + n, len - n);  in arc_cpu_mumbojumbo()
317 	READ_BCR(ARC_REG_TIMERS_BCR, timer);  in arc_cpu_mumbojumbo()
318 	info->t0 = timer.t0;  in arc_cpu_mumbojumbo()
319 	info->t1 = timer.t1;  in arc_cpu_mumbojumbo()
324 	n += scnprintf(buf + n, len - n,  in arc_cpu_mumbojumbo()
326 		       IS_AVAIL1(timer.t0, "Timer0 "),  in arc_cpu_mumbojumbo()
327 		       IS_AVAIL1(timer.t1, "Timer1 "),  in arc_cpu_mumbojumbo()
328 		       IS_AVAIL2(timer.rtc, "RTC [UP 64-bit] ", CONFIG_ARC_TIMERS_64BIT),  in arc_cpu_mumbojumbo()
329 		       IS_AVAIL2(mp.gfrc, "GFRC [SMP 64-bit] ", CONFIG_ARC_TIMERS_64BIT),  in arc_cpu_mumbojumbo()
345 		n += scnprintf(buf + n, len - n, "DEBUG\t\t: %s%s",  in arc_cpu_mumbojumbo()
349 			n += scnprintf(buf + n, len - n, "ActionPoint %d/%s",  in arc_cpu_mumbojumbo()
353 		n += scnprintf(buf + n, len - n, "\n");  in arc_cpu_mumbojumbo()
356 	if (info->dccm.sz || info->iccm.sz)  in arc_cpu_mumbojumbo()
357 		n += scnprintf(buf + n, len - n,  in arc_cpu_mumbojumbo()
359 			       info->dccm.base, TO_KB(info->dccm.sz),  in arc_cpu_mumbojumbo()
360 			       info->iccm.base, TO_KB(info->iccm.sz));  in arc_cpu_mumbojumbo()
384 	if (!info->t0)  in arc_chk_core_config()
387 	if (!info->t1)  in arc_chk_core_config()
395 	if ((unsigned int)__arc_dccm_base != info->dccm.base)  in arc_chk_core_config()
398 	if (CONFIG_ARC_DCCM_SZ * SZ_1K != info->dccm.sz)  in arc_chk_core_config()
403 	if (CONFIG_ARC_ICCM_SZ * SZ_1K != info->iccm.sz)  in arc_chk_core_config()
444 #define IGNORE_ARGS		"Ignore U-boot args: "
446 /* uboot_tag values for U-boot - kernel ABI revision 0; see head.S */
450 /* We always pass 0 as magic from U-boot */
477 	/* see if U-boot passed an external Device Tree blob */  in handle_uboot_args()
481 		/* external Device Tree blob is invalid - use embedded one */  in handle_uboot_args()
518 	if (machine_desc->init_early)  in setup_arch()
519 		machine_desc->init_early();  in setup_arch()
538  * Called from start_kernel() - boot CPU only
548 	if (machine_desc->init_machine)  in customize_machine()
549 		machine_desc->init_machine();  in customize_machine()
557 	if (machine_desc->init_late)  in init_late_machine()
558 		machine_desc->init_late();  in init_late_machine()
617 	 * Callback returns cpu-id to iterator for show routine, NULL to stop.  in c_start()
618 	 * However since NULL is also a valid cpu-id (0), we use a round-about  in c_start()
620 	 * Encode cpu-id as 0xFFcccc, which is decoded by show routine.  in c_start()