| 1 | --- a/.gitignore |
| 2 | +++ b/.gitignore |
| 3 | @@ -23,6 +23,11 @@ |
| 4 | /u-boot.hex |
| 5 | /u-boot.map |
| 6 | /u-boot.bin |
| 7 | +/u-boot.bin.bz2 |
| 8 | +/u-boot.bin.gz |
| 9 | +/u-boot.bin.lzma |
| 10 | +/u-boot.bin.lzo |
| 11 | +/u-boot.dis |
| 12 | /u-boot.srec |
| 13 | /u-boot.ldr |
| 14 | /u-boot.ldr.hex |
| 15 | @@ -30,6 +35,20 @@ |
| 16 | /u-boot.lds |
| 17 | /u-boot-onenand.bin |
| 18 | /u-boot-flexonenand.bin |
| 19 | +/u-boot-bootstrap |
| 20 | +/u-boot-bootstrap.hex |
| 21 | +/u-boot-bootstrap.map |
| 22 | +/u-boot-bootstrap.bin |
| 23 | +/u-boot-bootstrap.bin.bz2 |
| 24 | +/u-boot-bootstrap.bin.gz |
| 25 | +/u-boot-bootstrap.bin.lzma |
| 26 | +/u-boot-bootstrap.bin.lzo |
| 27 | +/u-boot-bootstrap.dis |
| 28 | +/u-boot-bootstrap.srec |
| 29 | +/u-boot-bootstrap.ldr |
| 30 | +/u-boot-bootstrap.ldr.hex |
| 31 | +/u-boot-bootstrap.ldr.srec |
| 32 | +/u-boot-bootstrap.lds |
| 33 | |
| 34 | # |
| 35 | # Generated files |
| 36 | @@ -38,6 +57,7 @@ |
| 37 | *.depend |
| 38 | /LOG |
| 39 | /errlog |
| 40 | +/.payload.s |
| 41 | /reloc_off |
| 42 | |
| 43 | # stgit generated dirs |
| 44 | @@ -63,3 +83,6 @@ |
| 45 | /onenand_ipl/onenand-ipl* |
| 46 | /onenand_ipl/board/*/onenand* |
| 47 | /onenand_ipl/board/*/*.S |
| 48 | +examples/standalone/ |
| 49 | + |
| 50 | +setvars |
| 51 | --- a/Makefile |
| 52 | +++ b/Makefile |
| 53 | @@ -183,6 +183,12 @@ |
| 54 | |
| 55 | OBJS := $(addprefix $(obj),$(OBJS)) |
| 56 | |
| 57 | +ifeq ($(CONFIG_BOOTSTRAP),y) |
| 58 | +BOOTSTRAP_OBJS = cpu/$(ARCH)/start_bootstrap.o |
| 59 | + |
| 60 | +BOOTSTRAP_OBJS := $(addprefix $(obj),$(BOOTSTRAP_OBJS)) |
| 61 | +endif |
| 62 | + |
| 63 | LIBS = lib_generic/libgeneric.a |
| 64 | LIBS += lib_generic/lzma/liblzma.a |
| 65 | LIBS += lib_generic/lzo/liblzo.a |
| 66 | @@ -254,6 +260,25 @@ |
| 67 | LIBBOARD = board/$(BOARDDIR)/lib$(BOARD).a |
| 68 | LIBBOARD := $(addprefix $(obj),$(LIBBOARD)) |
| 69 | |
| 70 | +ifeq ($(CONFIG_BOOTSTRAP),y) |
| 71 | +BOOTSTRAP_LIBS = lib_generic/libgeneric_bootstrap.a |
| 72 | +BOOTSTRAP_LIBS += cpu/$(ARCH)/lib$(ARCH)_bootstrap.a |
| 73 | +BOOTSTRAP_LIBS += lib_$(ARCH)/lib$(ARCH)_bootstrap.a |
| 74 | +BOOTSTRAP_LIBS += common/libcommon_bootstrap.a |
| 75 | +BOOTSTRAP_LIBS-$(CONFIG_BOOTSTRAP_SERIAL) += drivers/serial/libserial.a |
| 76 | + |
| 77 | +BOOTSTRAP_LIBS-$(CONFIG_BOOTSTRAP_LZMA) += lib_generic/lzma/liblzma.a |
| 78 | +BOOTSTRAP_LIBS-$(CONFIG_BOOTSTRAP_LZO) += lib/lzo/liblzo.a |
| 79 | +BOOTSTRAP_LIBS += $(BOOTSTRAP_LIBS-y) |
| 80 | + |
| 81 | +BOOTSTRAP_LIBS := $(addprefix $(obj),$(BOOTSTRAP_LIBS)) |
| 82 | +.PHONY : $(BOOTSTRAP_LIBS) |
| 83 | + |
| 84 | +BOOTSTRAP_LIBBOARD = board/$(BOARDDIR)/lib$(BOARD)_bootstrap.a |
| 85 | +BOOTSTRAP_LIBBOARD := $(addprefix $(obj),$(BOOTSTRAP_LIBBOARD)) |
| 86 | +endif |
| 87 | + |
| 88 | + |
| 89 | # Add GCC lib |
| 90 | ifdef USE_PRIVATE_LIBGCC |
| 91 | ifeq ("$(USE_PRIVATE_LIBGCC)", "yes") |
| 92 | @@ -267,6 +292,9 @@ |
| 93 | PLATFORM_LIBS += $(PLATFORM_LIBGCC) |
| 94 | export PLATFORM_LIBS |
| 95 | |
| 96 | +BOOTSTRAP_PLATFORM_LIBS += $(PLATFORM_LIBGCC) |
| 97 | +export BOOTSTRAP_PLATFORM_LIBS |
| 98 | + |
| 99 | # Special flags for CPP when processing the linker script. |
| 100 | # Pass the version down so we can handle backwards compatibility |
| 101 | # on the fly. |
| 102 | @@ -289,12 +317,19 @@ |
| 103 | __OBJS := $(subst $(obj),,$(OBJS)) |
| 104 | __LIBS := $(subst $(obj),,$(LIBS)) $(subst $(obj),,$(LIBBOARD)) |
| 105 | |
| 106 | +__BOOTSTRAP_OBJS := $(subst $(obj),,$(BOOTSTRAP_OBJS)) |
| 107 | +__BOOTSTRAP_LIBS := $(subst $(obj),,$(BOOTSTRAP_LIBS)) $(subst $(obj),,$(BOOTSTRAP_LIBBOARD)) |
| 108 | + |
| 109 | ######################################################################### |
| 110 | ######################################################################### |
| 111 | |
| 112 | # Always append ALL so that arch config.mk's can add custom ones |
| 113 | ALL += $(obj)u-boot.srec $(obj)u-boot.bin $(obj)System.map $(U_BOOT_NAND) $(U_BOOT_ONENAND) |
| 114 | |
| 115 | +ifeq ($(CONFIG_BOOTSTRAP),y) |
| 116 | +ALL += $(obj)u-boot-bootstrap.srec $(obj)u-boot-bootstrap.bin |
| 117 | +endif |
| 118 | + |
| 119 | all: $(ALL) |
| 120 | |
| 121 | $(obj)u-boot.hex: $(obj)u-boot |
| 122 | @@ -306,6 +341,19 @@ |
| 123 | $(obj)u-boot.bin: $(obj)u-boot |
| 124 | $(OBJCOPY) ${OBJCFLAGS} -O binary $< $@ |
| 125 | |
| 126 | +$(obj)u-boot.bin.gz: $(obj)u-boot.bin |
| 127 | + gzip -c $< > $@ |
| 128 | + |
| 129 | +$(obj)u-boot.bin.lzma: $(obj)u-boot.bin |
| 130 | + echo lzma -e -z -c $< $@ |
| 131 | + lzma e $< $@ |
| 132 | + |
| 133 | +$(obj)u-boot.bin.lzo: $(obj)u-boot.bin |
| 134 | + lzop -9 -c $< > $@ |
| 135 | + |
| 136 | +$(obj)u-boot.bin.bz2: $(obj)u-boot.bin |
| 137 | + bzip2 --best -z -c $< > $@ |
| 138 | + |
| 139 | $(obj)u-boot.ldr: $(obj)u-boot |
| 140 | $(CREATE_LDR_ENV) |
| 141 | $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS) |
| 142 | @@ -335,12 +383,12 @@ |
| 143 | $(obj)tools/ubsha1 $(obj)u-boot.bin |
| 144 | |
| 145 | $(obj)u-boot.dis: $(obj)u-boot |
| 146 | - $(OBJDUMP) -d $< > $@ |
| 147 | + $(OBJDUMP) -S -d $< > $@ |
| 148 | |
| 149 | GEN_UBOOT = \ |
| 150 | UNDEF_SYM=`$(OBJDUMP) -x $(LIBBOARD) $(LIBS) | \ |
| 151 | sed -n -e 's/.*\($(SYM_PREFIX)__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\ |
| 152 | - cd $(LNDIR) && $(LD) $(LDFLAGS) $$UNDEF_SYM $(__OBJS) \ |
| 153 | + cd $(LNDIR) && $(LD) --gc-sections $(LDFLAGS) $$UNDEF_SYM $(__OBJS) \ |
| 154 | --start-group $(__LIBS) --end-group $(PLATFORM_LIBS) \ |
| 155 | -Map u-boot.map -o u-boot |
| 156 | $(obj)u-boot: depend $(SUBDIRS) $(OBJS) $(LIBBOARD) $(LIBS) $(LDSCRIPT) $(obj)u-boot.lds |
| 157 | @@ -362,6 +410,120 @@ |
| 158 | $(LIBBOARD): depend $(LIBS) |
| 159 | $(MAKE) -C $(dir $(subst $(obj),,$@)) |
| 160 | |
| 161 | +# Bootstrap targets |
| 162 | + |
| 163 | +ifeq ($(CONFIG_BOOTSTRAP),y) |
| 164 | +$(obj)u-boot-bootstrap.hex: $(obj)u-boot-bootstrap |
| 165 | + $(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ |
| 166 | + |
| 167 | +$(obj)u-boot-bootstrap.srec: $(obj)u-boot-bootstrap |
| 168 | + $(OBJCOPY) -O srec $< $@ |
| 169 | + |
| 170 | +$(obj)u-boot-bootstrap.bin: $(obj)u-boot-bootstrap |
| 171 | + $(OBJCOPY) ${OBJCFLAGS} -O binary $< $@ |
| 172 | + $(BOARD_SIZE_CHECK) |
| 173 | + |
| 174 | +$(obj)u-boot-bootstrap.bin.gz: $(obj)u-boot-bootstrap.bin |
| 175 | + gzip -c $< > $@ |
| 176 | + |
| 177 | +$(obj)u-boot-bootstrap.bin.lzma: $(obj)u-boot-bootstrap.bin |
| 178 | + lzma -e -z -c $< > $@ |
| 179 | + |
| 180 | +$(obj)u-boot.bin-bootstrap.lzo: $(obj)u-boot-bootstrap.bin |
| 181 | + lzop -9 -c $< > $@ |
| 182 | + |
| 183 | +$(obj)u-boot.bin-bootstrap.bz2: $(obj)u-boot-bootstrap.bin |
| 184 | + bzip2 --best -z -c $< > $@ |
| 185 | + |
| 186 | +$(obj)u-boot-bootstrap.ldr: $(obj)u-boot-bootstrap |
| 187 | + $(CREATE_LDR_ENV) |
| 188 | + $(LDR) -T $(CONFIG_BFIN_CPU) -c $@ $< $(LDR_FLAGS) |
| 189 | + $(BOARD_SIZE_CHECK) |
| 190 | + |
| 191 | +$(obj)u-boot-bootstrap.ldr.hex: $(obj)u-boot-bootstrap.ldr |
| 192 | + $(OBJCOPY) ${OBJCFLAGS} -O ihex $< $@ -I binary |
| 193 | + |
| 194 | +$(obj)u-boot-bootstrap.ldr.srec: $(obj)u-boot-bootstrap.ldr |
| 195 | + $(OBJCOPY) ${OBJCFLAGS} -O srec $< $@ -I binary |
| 196 | + |
| 197 | +$(obj)u-boot-bootstrap.img: $(obj)u-boot-bootstrap.bin |
| 198 | + $(obj)tools/mkimage -A $(ARCH) -T firmware -C none \ |
| 199 | + -a $(CONFIG_BOOTSTRAP_BASE) -e 0 \ |
| 200 | + -n $(shell sed -n -e 's/.*U_BOOT_VERSION//p' $(VERSION_FILE) | \ |
| 201 | + sed -e 's/"[ ]*$$/ for $(BOARD) board"/') \ |
| 202 | + -d $< $@ |
| 203 | + |
| 204 | +$(obj)u-boot-bootstrap.imx: $(obj)u-boot-bootstrap.bin |
| 205 | + $(obj)tools/mkimage -n $(IMX_CONFIG) -T imximage \ |
| 206 | + -e $(CONFIG_BOOTSTRAP_BASE) -d $< $@ |
| 207 | + |
| 208 | +$(obj)u-boot-bootstrap.kwb: $(obj)u-boot-bootstrap.bin |
| 209 | + $(obj)tools/mkimage -n $(CONFIG_SYS_KWD_CONFIG) -T kwbimage \ |
| 210 | + -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE) -d $< $@ |
| 211 | + |
| 212 | +$(obj)u-boot-bootstrap.sha1: $(obj)u-boot-bootstrap.bin |
| 213 | + $(obj)tools/ubsha1 $(obj)u-boot-bootstrap.bin |
| 214 | + |
| 215 | +$(obj)u-boot-bootstrap.dis: $(obj)u-boot-bootstrap |
| 216 | + echo $(OBJDUMP) -S -d $< > $@ |
| 217 | + $(OBJDUMP) -S -d $< > $@ |
| 218 | + |
| 219 | +PAYLOAD_FILE_BASE=$(obj)u-boot.bin |
| 220 | +ifeq ($(CONFIG_BOOTSTRAP_GZIP),y) |
| 221 | +PAYLOAD_FILE_EXT:=.gz |
| 222 | +endif |
| 223 | +ifeq ($(CONFIG_BOOTSTRAP_LZMA),y) |
| 224 | +PAYLOAD_FILE_EXT:=.lzma |
| 225 | +endif |
| 226 | +ifeq ($(CONFIG_BOOTSTRAP_LZO),y) |
| 227 | +PAYLOAD_FILE_EXT:=.lzo |
| 228 | +endif |
| 229 | +ifeq ($(CONFIG_BOOTSTRAP_BZIP2),y) |
| 230 | +PAYLOAD_FILE_EXT:=.bz2 |
| 231 | +endif |
| 232 | + |
| 233 | +PAYLOAD_FILE := $(PAYLOAD_FILE_BASE)$(PAYLOAD_FILE_EXT) |
| 234 | + |
| 235 | +$(obj).payload.s: $(PAYLOAD_FILE) |
| 236 | + echo ".globl payload_start" > $@ |
| 237 | + echo ".globl payload_end" >> $@ |
| 238 | + echo ".globl payload_size" >> $@ |
| 239 | + echo ".globl payload_uncsize" >> $@ |
| 240 | + echo .section .payload,\"a\",@progbits >> $@ |
| 241 | + echo "payload_size:" >> $@ |
| 242 | + echo -n ".word " >> $@ |
| 243 | + wc -c $(PAYLOAD_FILE) | cut -f1 -d' ' >> $@ |
| 244 | + echo "payload_uncsize:" >> $@ |
| 245 | + echo -n ".word " >> $@ |
| 246 | + wc -c $(obj)u-boot.bin | cut -f1 -d' ' >> $@ |
| 247 | + echo "payload_start:" >> $@ |
| 248 | + echo .incbin \"$(PAYLOAD_FILE)\" >> $@ |
| 249 | + echo "payload_end:" >> $@ |
| 250 | + |
| 251 | + |
| 252 | +GEN_UBOOT_BOOTSTRAP = \ |
| 253 | + UNDEF_SYM=`$(OBJDUMP) -x $(BOOTSTRAP_LIBBOARD) $(BOOTSTRAP_LIBS) | \ |
| 254 | + sed -n -e 's/.*\($(SYM_PREFIX)__u_boot_cmd_.*\)/-u\1/p'|sort|uniq`;\ |
| 255 | + cd $(LNDIR) && $(LD) --gc-sections $(BOOTSTRAP_LDFLAGS) $$UNDEF_SYM $(obj).payload.o $(__BOOTSTRAP_OBJS) \ |
| 256 | + --start-group $(__BOOTSTRAP_LIBS) --end-group $(BOOTSTRAP_PLATFORM_LIBS) \ |
| 257 | + -Map u-boot-bootstrap.map -o u-boot-bootstrap |
| 258 | + |
| 259 | +$(obj)u-boot-bootstrap: depend $(SUBDIRS) $(BOOTSTRAP_OBJS) $(BOOTSTRAP_LIBS) $(BOOTSTRAP_LDSCRIPT) $(obj)u-boot-bootstrap.lds $(obj).payload.o #$(BOOTSTRAP_LIBBOARD) |
| 260 | + #echo "--------$(BOOTSTRAP_LIBBOARD)" |
| 261 | + #echo "$(GEN_UBOOT_BOOTSTRAP)" |
| 262 | + $(GEN_UBOOT_BOOTSTRAP) |
| 263 | +ifeq ($(CONFIG_KALLSYMS),y) |
| 264 | + smap=`$(call SYSTEM_MAP,u-boot-bootstrap) | \ |
| 265 | + awk '$$2 ~ /[tTwW]/ {printf $$1 $$3 "\\\\000"}'` ; \ |
| 266 | + $(CC) $(CFLAGS) -DSYSTEM_MAP="\"$${smap}\"" \ |
| 267 | + -c common/system_map.c -o $(obj)common/system_map.o |
| 268 | + $(GEN_UBOOT_BOOTSTRAP) $(obj)common/system_map.o |
| 269 | +endif |
| 270 | + |
| 271 | +$(BOOTSTRAP_LIBBOARD): depend $(BOOTSTRAP_LIBS) |
| 272 | + $(MAKE) -C $(dir $(subst $(obj),,$@)) $(notdir $@) |
| 273 | +endif |
| 274 | + |
| 275 | $(SUBDIRS): depend |
| 276 | $(MAKE) -C $@ all |
| 277 | |
| 278 | @@ -371,6 +533,9 @@ |
| 279 | $(obj)u-boot.lds: $(LDSCRIPT) |
| 280 | $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@ |
| 281 | |
| 282 | +$(obj)u-boot-bootstrap.lds: $(BOOTSTRAP_LDSCRIPT) |
| 283 | + $(CPP) $(CPPFLAGS) $(BOOTSTRAP_LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@ |
| 284 | + |
| 285 | $(NAND_SPL): $(TIMESTAMP_FILE) $(VERSION_FILE) $(obj)include/autoconf.mk |
| 286 | $(MAKE) -C nand_spl/board/$(BOARDDIR) all |
| 287 | |
| 288 | @@ -3829,6 +3994,7 @@ |
| 289 | $(obj)board/netstar/{eeprom,crcek,crcit,*.srec,*.bin} \ |
| 290 | $(obj)board/trab/trab_fkt $(obj)board/voiceblue/eeprom \ |
| 291 | $(obj)board/armltd/{integratorap,integratorcp}/u-boot.lds \ |
| 292 | + $(obj)u-boot-bootstrap.lds \ |
| 293 | $(obj)lib_blackfin/u-boot.lds \ |
| 294 | $(obj)u-boot.lds \ |
| 295 | $(obj)cpu/blackfin/bootrom-asm-offsets.[chs] |
| 296 | @@ -3853,6 +4019,12 @@ |
| 297 | @rm -f $(obj)u-boot $(obj)u-boot.map $(obj)u-boot.hex $(ALL) |
| 298 | @rm -f $(obj)u-boot.kwb |
| 299 | @rm -f $(obj)u-boot.imx |
| 300 | + @rm -f $(obj)u-boot.bin{.gz,.lzma,.lzo,.bz2} |
| 301 | + @rm -f $(obj)u-boot-bootstrap $(obj)u-boot-bootstrap.map $(obj)u-boot-bootstrap.hex |
| 302 | + @rm -f $(obj)u-boot-bootstrap.kwb |
| 303 | + @rm -f $(obj)u-boot-bootstrap.imx |
| 304 | + @rm -f $(obj)u-boot-bootstrap.bin{.gz,.lzma,.lzo,.bz2} |
| 305 | + @rm -f $(obj).payload.s |
| 306 | @rm -f $(obj)tools/{env/crc32.c,inca-swap-bytes} |
| 307 | @rm -f $(obj)cpu/mpc824x/bedbug_603e.c |
| 308 | @rm -f $(obj)include/asm/proc $(obj)include/asm/arch $(obj)include/asm |
| 309 | --- a/lib_mips/config.mk |
| 310 | +++ b/lib_mips/config.mk |
| 311 | @@ -47,6 +47,6 @@ |
| 312 | # On the other hand, we want PIC in the U-Boot code to relocate it from ROM |
| 313 | # to RAM. $28 is always used as gp. |
| 314 | # |
| 315 | -PLATFORM_CPPFLAGS += -G 0 -mabicalls -fpic |
| 316 | +PLATFORM_CPPFLAGS += -G 0 -mabicalls -fpic -g |
| 317 | PLATFORM_CPPFLAGS += -msoft-float |
| 318 | PLATFORM_LDFLAGS += -G 0 -static -n -nostdlib |
| 319 | --- /dev/null |
| 320 | +++ b/cpu/mips/reset.c |
| 321 | @@ -0,0 +1,39 @@ |
| 322 | +/* |
| 323 | + * (C) Copyright 2003 |
| 324 | + * Wolfgang Denk, DENX Software Engineering, <wd@denx.de> |
| 325 | + * |
| 326 | + * See file CREDITS for list of people who contributed to this |
| 327 | + * project. |
| 328 | + * |
| 329 | + * This program is free software; you can redistribute it and/or |
| 330 | + * modify it under the terms of the GNU General Public License as |
| 331 | + * published by the Free Software Foundation; either version 2 of |
| 332 | + * the License, or (at your option) any later version. |
| 333 | + * |
| 334 | + * This program is distributed in the hope that it will be useful, |
| 335 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 336 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 337 | + * GNU General Public License for more details. |
| 338 | + * |
| 339 | + * You should have received a copy of the GNU General Public License |
| 340 | + * along with this program; if not, write to the Free Software |
| 341 | + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 342 | + * MA 02111-1307 USA |
| 343 | + */ |
| 344 | + |
| 345 | +#include <common.h> |
| 346 | +#include <command.h> |
| 347 | +#include <asm/mipsregs.h> |
| 348 | +#include <asm/reboot.h> |
| 349 | + |
| 350 | +void __attribute__((weak)) _machine_restart(void) |
| 351 | +{ |
| 352 | +} |
| 353 | + |
| 354 | +int __attribute__((weak)) do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
| 355 | +{ |
| 356 | + _machine_restart(); |
| 357 | + |
| 358 | + fprintf(stderr, "*** reset failed ***\n"); |
| 359 | + return 0; |
| 360 | +} |
| 361 | --- /dev/null |
| 362 | +++ b/cpu/mips/reset_bootstrap.c |
| 363 | @@ -0,0 +1,39 @@ |
| 364 | +/* |
| 365 | + * (C) Copyright 2003 |
| 366 | + * Wolfgang Denk, DENX Software Engineering, <wd@denx.de> |
| 367 | + * |
| 368 | + * See file CREDITS for list of people who contributed to this |
| 369 | + * project. |
| 370 | + * |
| 371 | + * This program is free software; you can redistribute it and/or |
| 372 | + * modify it under the terms of the GNU General Public License as |
| 373 | + * published by the Free Software Foundation; either version 2 of |
| 374 | + * the License, or (at your option) any later version. |
| 375 | + * |
| 376 | + * This program is distributed in the hope that it will be useful, |
| 377 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 378 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 379 | + * GNU General Public License for more details. |
| 380 | + * |
| 381 | + * You should have received a copy of the GNU General Public License |
| 382 | + * along with this program; if not, write to the Free Software |
| 383 | + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 384 | + * MA 02111-1307 USA |
| 385 | + */ |
| 386 | + |
| 387 | +#include <common.h> |
| 388 | +#include <command.h> |
| 389 | +#include <asm/mipsregs.h> |
| 390 | +#include <asm/reboot.h> |
| 391 | + |
| 392 | +void __attribute__((weak)) _machine_restart(void) |
| 393 | +{ |
| 394 | +} |
| 395 | + |
| 396 | +int __attribute__((weak)) do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
| 397 | +{ |
| 398 | + _machine_restart(); |
| 399 | + |
| 400 | + printf("*** reset failed ***\n"); |
| 401 | + return 0; |
| 402 | +} |
| 403 | --- /dev/null |
| 404 | +++ b/cpu/mips/start_bootstrap.S |
| 405 | @@ -0,0 +1,534 @@ |
| 406 | +/* |
| 407 | + * Startup Code for MIPS32 CPU-core base on start.S source |
| 408 | + * |
| 409 | + * Copyright (c) 2010 Industrie Dial Face S.p.A. |
| 410 | + * Luigi 'Comio' Mantellini <luigi.mantellini@idf-hit.com> |
| 411 | + * |
| 412 | + * Copyright (c) 2003 Wolfgang Denk <wd@denx.de> |
| 413 | + * |
| 414 | + * See file CREDITS for list of people who contributed to this |
| 415 | + * project. |
| 416 | + * |
| 417 | + * This program is free software; you can redistribute it and/or |
| 418 | + * modify it under the terms of the GNU General Public License as |
| 419 | + * published by the Free Software Foundation; either version 2 of |
| 420 | + * the License, or (at your option) any later version. |
| 421 | + * |
| 422 | + * This program is distributed in the hope that it will be useful, |
| 423 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 424 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 425 | + * GNU General Public License for more details. |
| 426 | + * |
| 427 | + * You should have received a copy of the GNU General Public License |
| 428 | + * along with this program; if not, write to the Free Software |
| 429 | + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 430 | + * MA 02111-1307 USA |
| 431 | + */ |
| 432 | + |
| 433 | +//#include <generated/generic-asm-offsets.h> |
| 434 | +#include <config.h> |
| 435 | +#include <asm/regdef.h> |
| 436 | +//#include <asm/mipsregs.h> |
| 437 | +#define CP0_INDEX $0 |
| 438 | +#define CP0_RANDOM $1 |
| 439 | +#define CP0_ENTRYLO0 $2 |
| 440 | +#define CP0_ENTRYLO1 $3 |
| 441 | +#define CP0_CONF $3 |
| 442 | +#define CP0_CONTEXT $4 |
| 443 | +#define CP0_PAGEMASK $5 |
| 444 | +#define CP0_WIRED $6 |
| 445 | +#define CP0_INFO $7 |
| 446 | +#define CP0_BADVADDR $8 |
| 447 | +#define CP0_COUNT $9 |
| 448 | +#define CP0_ENTRYHI $10 |
| 449 | +#define CP0_COMPARE $11 |
| 450 | +#define CP0_STATUS $12 |
| 451 | +#define CP0_CAUSE $13 |
| 452 | +#define CP0_EPC $14 |
| 453 | +#define CP0_PRID $15 |
| 454 | +#define CP0_EBASE $15,1 |
| 455 | +#define CP0_CONFIG $16 |
| 456 | +#define CP0_LLADDR $17 |
| 457 | +#define CP0_WATCHLO $18 |
| 458 | +#define CP0_WATCHHI $19 |
| 459 | +#define CP0_XCONTEXT $20 |
| 460 | +#define CP0_FRAMEMASK $21 |
| 461 | +#define CP0_DIAGNOSTIC $22 |
| 462 | +#define CP0_DEBUG $23 |
| 463 | +#define CP0_DEPC $24 |
| 464 | +#define CP0_PERFORMANCE $25 |
| 465 | +#define CP0_ECC $26 |
| 466 | +#define CP0_CACHEERR $27 |
| 467 | +#define CP0_TAGLO $28 |
| 468 | +#define CP0_TAGHI $29 |
| 469 | +#define CP0_ERROREPC $30 |
| 470 | +#define CP0_DESAVE $31 |
| 471 | +#define ST0_CU0 0x10000000 |
| 472 | +#define CONF_CM_UNCACHED 2 |
| 473 | +#define CONF_CM_CACHABLE_NONCOHERENT 3 |
| 474 | +#define EBASEB_CPUNUM 0 |
| 475 | +#define EBASEF_CPUNUM (0x3ff << EBASEB_CPUNUM) |
| 476 | +#define MIPS_CONF7_RPS 4 //((unsigned long)(1) << 2) |
| 477 | +#define CONF_CM_CACHABLE_NONCOHERENT 3 |
| 478 | +#ifndef CONFIG_SYS_MIPS_CACHE_OPER_MODE |
| 479 | +#define CONFIG_SYS_MIPS_CACHE_OPER_MODE CONF_CM_CACHABLE_NONCOHERENT |
| 480 | +#endif |
| 481 | + |
| 482 | + /* |
| 483 | + * For the moment disable interrupts, mark the kernel mode and |
| 484 | + * set ST0_KX so that the CPU does not spit fire when using |
| 485 | + * 64-bit addresses. |
| 486 | + */ |
| 487 | + .macro setup_c0_status set clr |
| 488 | + .set push |
| 489 | + mfc0 t0, CP0_STATUS |
| 490 | + or t0, ST0_CU0 | \set | 0x1f | \clr |
| 491 | + xor t0, 0x1f | \clr |
| 492 | + mtc0 t0, CP0_STATUS |
| 493 | + .set noreorder |
| 494 | + sll zero, 3 # ehb |
| 495 | + .set pop |
| 496 | + .endm |
| 497 | + |
| 498 | + .macro setup_c0_status_reset |
| 499 | +#ifdef CONFIG_64BIT |
| 500 | + setup_c0_status ST0_KX 0 |
| 501 | +#else |
| 502 | + setup_c0_status 0 0 |
| 503 | +#endif |
| 504 | + .endm |
| 505 | + |
| 506 | +#define RVECENT(f,n) \ |
| 507 | + b f; nop |
| 508 | +#define XVECENT(f,bev) \ |
| 509 | + b f ; \ |
| 510 | + li k0,bev |
| 511 | + |
| 512 | + .set noreorder |
| 513 | + |
| 514 | + .globl _start |
| 515 | + .text |
| 516 | +_start: |
| 517 | + RVECENT(reset,0) /* U-boot entry point */ |
| 518 | + RVECENT(reset,1) /* software reboot */ |
| 519 | +#if defined(CONFIG_INCA_IP) |
| 520 | + .word INFINEON_EBU_BOOTCFG /* EBU init code, fetched during booting */ |
| 521 | + .word 0x00000000 /* phase of the flash */ |
| 522 | +#elif defined(CONFIG_PURPLE) |
| 523 | + .word INFINEON_EBU_BOOTCFG /* EBU init code, fetched during booting */ |
| 524 | + .word INFINEON_EBU_BOOTCFG /* EBU init code, fetched during booting */ |
| 525 | +#else |
| 526 | + .word INFINEON_EBU_BOOTCFG /* EBU init code, fetched during booting */ |
| 527 | + .word 0x00000000 /* phase of the flash */ |
| 528 | +#endif |
| 529 | + RVECENT(romReserved,3) |
| 530 | + RVECENT(romReserved,4) |
| 531 | + RVECENT(romReserved,5) |
| 532 | + RVECENT(romReserved,6) |
| 533 | + RVECENT(romReserved,7) |
| 534 | + RVECENT(romReserved,8) |
| 535 | + RVECENT(romReserved,9) |
| 536 | + RVECENT(romReserved,10) |
| 537 | + RVECENT(romReserved,11) |
| 538 | + RVECENT(romReserved,12) |
| 539 | + RVECENT(romReserved,13) |
| 540 | + RVECENT(romReserved,14) |
| 541 | + RVECENT(romReserved,15) |
| 542 | + RVECENT(romReserved,16) |
| 543 | + RVECENT(romReserved,17) |
| 544 | + RVECENT(romReserved,18) |
| 545 | + RVECENT(romReserved,19) |
| 546 | + RVECENT(romReserved,20) |
| 547 | + RVECENT(romReserved,21) |
| 548 | + RVECENT(romReserved,22) |
| 549 | + RVECENT(romReserved,23) |
| 550 | + RVECENT(romReserved,24) |
| 551 | + RVECENT(romReserved,25) |
| 552 | + RVECENT(romReserved,26) |
| 553 | + RVECENT(romReserved,27) |
| 554 | + RVECENT(romReserved,28) |
| 555 | + RVECENT(romReserved,29) |
| 556 | + RVECENT(romReserved,30) |
| 557 | + RVECENT(romReserved,31) |
| 558 | + RVECENT(romReserved,32) |
| 559 | + RVECENT(romReserved,33) |
| 560 | + RVECENT(romReserved,34) |
| 561 | + RVECENT(romReserved,35) |
| 562 | + RVECENT(romReserved,36) |
| 563 | + RVECENT(romReserved,37) |
| 564 | + RVECENT(romReserved,38) |
| 565 | + RVECENT(romReserved,39) |
| 566 | + RVECENT(romReserved,40) |
| 567 | + RVECENT(romReserved,41) |
| 568 | + RVECENT(romReserved,42) |
| 569 | + RVECENT(romReserved,43) |
| 570 | + RVECENT(romReserved,44) |
| 571 | + RVECENT(romReserved,45) |
| 572 | + RVECENT(romReserved,46) |
| 573 | + RVECENT(romReserved,47) |
| 574 | + RVECENT(romReserved,48) |
| 575 | + RVECENT(romReserved,49) |
| 576 | + RVECENT(romReserved,50) |
| 577 | + RVECENT(romReserved,51) |
| 578 | + RVECENT(romReserved,52) |
| 579 | + RVECENT(romReserved,53) |
| 580 | + RVECENT(romReserved,54) |
| 581 | + RVECENT(romReserved,55) |
| 582 | + RVECENT(romReserved,56) |
| 583 | + RVECENT(romReserved,57) |
| 584 | + RVECENT(romReserved,58) |
| 585 | + RVECENT(romReserved,59) |
| 586 | + RVECENT(romReserved,60) |
| 587 | + RVECENT(romReserved,61) |
| 588 | + RVECENT(romReserved,62) |
| 589 | + RVECENT(romReserved,63) |
| 590 | + XVECENT(romExcHandle,0x200) /* bfc00200: R4000 tlbmiss vector */ |
| 591 | + RVECENT(romReserved,65) |
| 592 | + RVECENT(romReserved,66) |
| 593 | + RVECENT(romReserved,67) |
| 594 | + RVECENT(romReserved,68) |
| 595 | + RVECENT(romReserved,69) |
| 596 | + RVECENT(romReserved,70) |
| 597 | + RVECENT(romReserved,71) |
| 598 | + RVECENT(romReserved,72) |
| 599 | + RVECENT(romReserved,73) |
| 600 | + RVECENT(romReserved,74) |
| 601 | + RVECENT(romReserved,75) |
| 602 | + RVECENT(romReserved,76) |
| 603 | + RVECENT(romReserved,77) |
| 604 | + RVECENT(romReserved,78) |
| 605 | + RVECENT(romReserved,79) |
| 606 | + XVECENT(romExcHandle,0x280) /* bfc00280: R4000 xtlbmiss vector */ |
| 607 | + RVECENT(romReserved,81) |
| 608 | + RVECENT(romReserved,82) |
| 609 | + RVECENT(romReserved,83) |
| 610 | + RVECENT(romReserved,84) |
| 611 | + RVECENT(romReserved,85) |
| 612 | + RVECENT(romReserved,86) |
| 613 | + RVECENT(romReserved,87) |
| 614 | + RVECENT(romReserved,88) |
| 615 | + RVECENT(romReserved,89) |
| 616 | + RVECENT(romReserved,90) |
| 617 | + RVECENT(romReserved,91) |
| 618 | + RVECENT(romReserved,92) |
| 619 | + RVECENT(romReserved,93) |
| 620 | + RVECENT(romReserved,94) |
| 621 | + RVECENT(romReserved,95) |
| 622 | + XVECENT(romExcHandle,0x300) /* bfc00300: R4000 cache vector */ |
| 623 | + RVECENT(romReserved,97) |
| 624 | + RVECENT(romReserved,98) |
| 625 | + RVECENT(romReserved,99) |
| 626 | + RVECENT(romReserved,100) |
| 627 | + RVECENT(romReserved,101) |
| 628 | + RVECENT(romReserved,102) |
| 629 | + RVECENT(romReserved,103) |
| 630 | + RVECENT(romReserved,104) |
| 631 | + RVECENT(romReserved,105) |
| 632 | + RVECENT(romReserved,106) |
| 633 | + RVECENT(romReserved,107) |
| 634 | + RVECENT(romReserved,108) |
| 635 | + RVECENT(romReserved,109) |
| 636 | + RVECENT(romReserved,110) |
| 637 | + RVECENT(romReserved,111) |
| 638 | + XVECENT(romExcHandle,0x380) /* bfc00380: R4000 general vector */ |
| 639 | + RVECENT(romReserved,113) |
| 640 | + RVECENT(romReserved,114) |
| 641 | + RVECENT(romReserved,115) |
| 642 | + RVECENT(romReserved,116) |
| 643 | + RVECENT(romReserved,116) |
| 644 | + RVECENT(romReserved,118) |
| 645 | + RVECENT(romReserved,119) |
| 646 | + RVECENT(romReserved,120) |
| 647 | + RVECENT(romReserved,121) |
| 648 | + RVECENT(romReserved,122) |
| 649 | + RVECENT(romReserved,123) |
| 650 | + RVECENT(romReserved,124) |
| 651 | + RVECENT(romReserved,125) |
| 652 | + RVECENT(romReserved,126) |
| 653 | + RVECENT(romReserved,127) |
| 654 | + |
| 655 | + /* We hope there are no more reserved vectors! |
| 656 | + * 128 * 8 == 1024 == 0x400 |
| 657 | + * so this is address R_VEC+0x400 == 0xbfc00400 |
| 658 | + */ |
| 659 | +#if 1 |
| 660 | + XVECENT(romExcHandle,0x400); /* bfc00400: Int, CauseIV=1 */ |
| 661 | + RVECENT(romReserved,129); |
| 662 | + RVECENT(romReserved,130); |
| 663 | + RVECENT(romReserved,131); |
| 664 | + RVECENT(romReserved,132); |
| 665 | + RVECENT(romReserved,133); |
| 666 | + RVECENT(romReserved,134); |
| 667 | + RVECENT(romReserved,135); |
| 668 | + RVECENT(romReserved,136); |
| 669 | + RVECENT(romReserved,137); |
| 670 | + RVECENT(romReserved,138); |
| 671 | + RVECENT(romReserved,139); |
| 672 | + RVECENT(romReserved,140); |
| 673 | + RVECENT(romReserved,141); |
| 674 | + RVECENT(romReserved,142); |
| 675 | + RVECENT(romReserved,143); |
| 676 | + XVECENT(romExcHandle,0x480); /* bfc00480: EJTAG debug exception */ |
| 677 | +#elif defined(CONFIG_PURPLE) |
| 678 | +/* 0xbfc00400 */ |
| 679 | + .word 0xdc870000 |
| 680 | + .word 0xfca70000 |
| 681 | + .word 0x20840008 |
| 682 | + .word 0x20a50008 |
| 683 | + .word 0x20c6ffff |
| 684 | + .word 0x14c0fffa |
| 685 | + .word 0x00000000 |
| 686 | + .word 0x03e00008 |
| 687 | + .word 0x00000000 |
| 688 | + .word 0x00000000 |
| 689 | +/* 0xbfc00428 */ |
| 690 | + .word 0xdc870000 |
| 691 | + .word 0xfca70000 |
| 692 | + .word 0x20840008 |
| 693 | + .word 0x20a50008 |
| 694 | + .word 0x20c6ffff |
| 695 | + .word 0x14c0fffa |
| 696 | + .word 0x00000000 |
| 697 | + .word 0x03e00008 |
| 698 | + .word 0x00000000 |
| 699 | + .word 0x00000000 |
| 700 | +#endif /* CONFIG_PURPLE */ |
| 701 | + .align 4 |
| 702 | +reset: |
| 703 | +#ifdef CONFIG_SYS_MIPS_MULTI_CPU |
| 704 | + mfc0 k0, CP0_EBASE |
| 705 | + and k0, EBASEF_CPUNUM |
| 706 | + bne k0, zero, ifx_mips_handler_cpux |
| 707 | + nop |
| 708 | +#endif |
| 709 | + /* Clear watch registers. |
| 710 | + */ |
| 711 | + mtc0 zero, CP0_WATCHLO |
| 712 | + mtc0 zero, CP0_WATCHHI |
| 713 | + |
| 714 | + /* WP(Watch Pending), SW0/1 should be cleared. */ |
| 715 | + mtc0 zero, CP0_CAUSE |
| 716 | + |
| 717 | + setup_c0_status_reset |
| 718 | +#if defined(CONFIG_MIPS24KEC) || defined(CONFIG_MIPS34KC) |
| 719 | + /* CONFIG7 register */ |
| 720 | + /* Erratum "RPS May Cause Incorrect Instruction Execution" |
| 721 | + * for 24KEC and 34KC */ |
| 722 | + mfc0 k0, CP0_CONFIG, 7 |
| 723 | + li k1, MIPS_CONF7_RPS |
| 724 | + or k0, k1 |
| 725 | + mtc0 k0, CP0_CONFIG, 7 |
| 726 | +#endif |
| 727 | + |
| 728 | + /* Init Timer */ |
| 729 | + mtc0 zero, CP0_COUNT |
| 730 | + mtc0 zero, CP0_COMPARE |
| 731 | + |
| 732 | + /* CONFIG0 register */ |
| 733 | + li t0, CONF_CM_UNCACHED |
| 734 | + mtc0 t0, CP0_CONFIG |
| 735 | + |
| 736 | + /* Initialize $gp. |
| 737 | + */ |
| 738 | + bal 1f |
| 739 | + nop |
| 740 | + .word _gp |
| 741 | +1: |
| 742 | + lw gp, 0(ra) |
| 743 | + |
| 744 | + /* Initialize any external memory. |
| 745 | + */ |
| 746 | + la t9, lowlevel_init |
| 747 | + jalr t9 |
| 748 | + nop |
| 749 | + |
| 750 | + /* Initialize caches... |
| 751 | + */ |
| 752 | + la t9, mips_cache_reset |
| 753 | + jalr t9 |
| 754 | + nop |
| 755 | + |
| 756 | + /* ... and enable them. |
| 757 | + */ |
| 758 | + li t0, CONF_CM_CACHABLE_NONCOHERENT /*CONFIG_SYS_MIPS_CACHE_OPER_MODE*/ |
| 759 | + mtc0 t0, CP0_CONFIG |
| 760 | + |
| 761 | + /* Set up temporary stack. |
| 762 | + */ |
| 763 | +#ifdef CONFIG_SYS_INIT_RAM_LOCK_MIPS |
| 764 | + li a0, CONFIG_SYS_INIT_SP_OFFSET |
| 765 | + la t9, mips_cache_lock |
| 766 | + jalr t9 |
| 767 | + nop |
| 768 | +#endif |
| 769 | + |
| 770 | + li t0, CONFIG_SYS_SDRAM_BASE + CONFIG_SYS_INIT_SP_OFFSET |
| 771 | + la sp, 0(t0) |
| 772 | + |
| 773 | + la t9, bootstrap_board_init_f |
| 774 | + jr t9 |
| 775 | + nop |
| 776 | + |
| 777 | +/* |
| 778 | + * void relocate_code (addr_sp, gd, addr_moni) |
| 779 | + * |
| 780 | + * This "function" does not return, instead it continues in RAM |
| 781 | + * after relocating the monitor code. |
| 782 | + * |
| 783 | + * a0 = addr_sp |
| 784 | + * a1 = gd |
| 785 | + * a2 = destination address |
| 786 | + */ |
| 787 | + .globl relocate_code |
| 788 | + .ent relocate_code |
| 789 | +relocate_code: |
| 790 | + move sp, a0 /* Set new stack pointer */ |
| 791 | + |
| 792 | + li t0, CONFIG_BOOTSTRAP_TEXT_BASE |
| 793 | + la t3, in_ram |
| 794 | + lw t2, -12(t3) /* t2 <-- uboot_end_data */ |
| 795 | + move t1, a2 |
| 796 | + move s2, a2 /* s2 <-- destination address */ |
| 797 | + |
| 798 | + /* |
| 799 | + * Fix $gp: |
| 800 | + * |
| 801 | + * New $gp = (Old $gp - CONFIG_SYS_MONITOR_BASE) + Destination Address |
| 802 | + */ |
| 803 | + move t6, gp |
| 804 | + sub gp, CONFIG_BOOTSTRAP_TEXT_BASE |
| 805 | + add gp, a2 /* gp now adjusted */ |
| 806 | + sub s1, gp, t6 /* s1 <-- relocation offset */ |
| 807 | + |
| 808 | + /* |
| 809 | + * t0 = source address |
| 810 | + * t1 = target address |
| 811 | + * t2 = source end address |
| 812 | + */ |
| 813 | + |
| 814 | + /* |
| 815 | + * Save destination address and size for later usage in flush_cache() |
| 816 | + */ |
| 817 | + move s0, a1 /* save gd in s0 */ |
| 818 | + move a0, t1 /* a0 <-- destination addr */ |
| 819 | + sub a1, t2, t0 /* a1 <-- size */ |
| 820 | + |
| 821 | + /* On the purple board we copy the code earlier in a special way |
| 822 | + * in order to solve flash problems |
| 823 | + */ |
| 824 | +#ifndef CONFIG_PURPLE |
| 825 | +1: |
| 826 | + lw t3, 0(t0) |
| 827 | + sw t3, 0(t1) |
| 828 | + addu t0, 4 |
| 829 | + ble t0, t2, 1b |
| 830 | + addu t1, 4 /* delay slot */ |
| 831 | +#endif |
| 832 | + |
| 833 | + /* If caches were enabled, we would have to flush them here. |
| 834 | + */ |
| 835 | + |
| 836 | + /* a0 & a1 are already set up for flush_cache(start, size) */ |
| 837 | + la t9, flush_cache |
| 838 | + jalr t9 |
| 839 | + nop |
| 840 | + |
| 841 | + /* Jump to where we've relocated ourselves. |
| 842 | + */ |
| 843 | + addi t0, s2, in_ram - _start |
| 844 | + jr t0 |
| 845 | + nop |
| 846 | + |
| 847 | + .word _gp |
| 848 | + .word _GLOBAL_OFFSET_TABLE_ |
| 849 | + .word uboot_end_data |
| 850 | + .word uboot_end |
| 851 | + .word num_got_entries |
| 852 | + |
| 853 | +in_ram: |
| 854 | + /* |
| 855 | + * Now we want to update GOT. |
| 856 | + * |
| 857 | + * GOT[0] is reserved. GOT[1] is also reserved for the dynamic object |
| 858 | + * generated by GNU ld. Skip these reserved entries from relocation. |
| 859 | + */ |
| 860 | + lw t3, -4(t0) /* t3 <-- num_got_entries */ |
| 861 | + lw t4, -16(t0) /* t4 <-- _GLOBAL_OFFSET_TABLE_ */ |
| 862 | + lw t5, -20(t0) /* t5 <-- _gp */ |
| 863 | + sub t4, t5 /* compute offset*/ |
| 864 | + add t4, t4, gp /* t4 now holds relocated _GLOBAL_OFFSET_TABLE_ */ |
| 865 | + addi t4, t4, 8 /* Skipping first two entries. */ |
| 866 | + li t2, 2 |
| 867 | +1: |
| 868 | + lw t1, 0(t4) |
| 869 | + beqz t1, 2f |
| 870 | + add t1, s1 |
| 871 | + sw t1, 0(t4) |
| 872 | +2: |
| 873 | + addi t2, 1 |
| 874 | + blt t2, t3, 1b |
| 875 | + addi t4, 4 /* delay slot */ |
| 876 | + |
| 877 | + /* Clear BSS. |
| 878 | + */ |
| 879 | + lw t1, -12(t0) /* t1 <-- uboot_end_data */ |
| 880 | + lw t2, -8(t0) /* t2 <-- uboot_end */ |
| 881 | + add t1, s1 /* adjust pointers */ |
| 882 | + add t2, s1 |
| 883 | + |
| 884 | + sub t1, 4 |
| 885 | +1: |
| 886 | + addi t1, 4 |
| 887 | + bltl t1, t2, 1b |
| 888 | + sw zero, 0(t1) /* delay slot */ |
| 889 | + |
| 890 | + move a0, s0 /* a0 <-- gd */ |
| 891 | + la t9, bootstrap_board_init_r |
| 892 | + jr t9 |
| 893 | + move a1, s2 /* delay slot */ |
| 894 | + |
| 895 | + .end relocate_code |
| 896 | + |
| 897 | +/* |
| 898 | + * void copy_and_jump (void) |
| 899 | + * |
| 900 | + * This function copies/unzips the u-boot image and runs it. |
| 901 | + * This "function" does not return |
| 902 | + * |
| 903 | +*/ |
| 904 | + .globl copy_and_jump |
| 905 | + .ent copy_and_jump |
| 906 | +copy_and_jump: |
| 907 | + |
| 908 | + /* copy_uboot(CONFIG_SYS_MONITOR_BASE, payload_uncsize, payload_start, payload_size) */ |
| 909 | + li a0, CONFIG_SYS_MONITOR_BASE |
| 910 | + la a1, payload_uncsize |
| 911 | + lw a1, 0(a1) |
| 912 | + la a2, payload_start |
| 913 | + la a3, payload_size |
| 914 | + la t9, copy_uboot |
| 915 | + jalr t9 |
| 916 | + lw a3, 0(a3) /* delay slot */ |
| 917 | + |
| 918 | + li t9, CONFIG_SYS_MONITOR_BASE |
| 919 | + jr t9 |
| 920 | + nop |
| 921 | + |
| 922 | + .end copy_and_jump |
| 923 | + |
| 924 | + /* Exception handlers. |
| 925 | + */ |
| 926 | +romReserved: |
| 927 | + b romReserved |
| 928 | + |
| 929 | +romExcHandle: |
| 930 | + b romExcHandle |
| 931 | +#ifdef CONFIG_SYS_MIPS_MULTI_CPU |
| 932 | +/* |
| 933 | + * Stop Slave CPUs |
| 934 | + */ |
| 935 | +ifx_mips_handler_cpux: |
| 936 | + wait; |
| 937 | + b ifx_mips_handler_cpux; |
| 938 | + nop; |
| 939 | +#endif |
| 940 | --- a/lib_mips/Makefile |
| 941 | +++ b/lib_mips/Makefile |
| 942 | @@ -24,6 +24,9 @@ |
| 943 | include $(TOPDIR)/config.mk |
| 944 | |
| 945 | LIB = $(obj)lib$(ARCH).a |
| 946 | +BOOTSTRAP_LIB = $(obj)lib$(ARCH)_bootstrap.a |
| 947 | + |
| 948 | +BOOTSTRAP_LIB-$(CONFIG_BOOTSTRAP) = $(BOOTSTRAP_LIB) |
| 949 | |
| 950 | SOBJS-y += |
| 951 | |
| 952 | @@ -35,12 +38,21 @@ |
| 953 | endif |
| 954 | COBJS-y += time.o |
| 955 | |
| 956 | -SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) |
| 957 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP) += board_bootstrap.o |
| 958 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP) += time.o |
| 959 | + |
| 960 | +BOOTSTRAP_OBJS := $(addprefix $(obj),$(BOOTSTRAP_SOBJS-y) $(BOOTSTRAP_COBJS-y)) |
| 961 | + |
| 962 | +SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) $(BOOTSTRAP_SOBJS-y:.o=.S) $(BOOTSTRAP_COBJS-y:.o=.c) |
| 963 | OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) |
| 964 | |
| 965 | +all: $(obj).depend $(LIB) $(BOOTSTRAP_LIB) |
| 966 | $(LIB): $(obj).depend $(OBJS) |
| 967 | $(AR) $(ARFLAGS) $@ $(OBJS) |
| 968 | |
| 969 | +$(BOOTSTRAP_LIB): $(obj).depend $(BOOTSTRAP_OBJS) |
| 970 | + $(AR) $(ARFLAGS) $@ $(BOOTSTRAP_OBJS) |
| 971 | + |
| 972 | ######################################################################### |
| 973 | |
| 974 | # defines $(obj).depend target |
| 975 | --- /dev/null |
| 976 | +++ b/lib_mips/board_bootstrap.c |
| 977 | @@ -0,0 +1,270 @@ |
| 978 | +/* |
| 979 | + * (C) Copyright 2010 Industrie Dial Face S.p.A. |
| 980 | + * Luigi 'Comio' Mantellini, luigi.mantellini@idf-hit.com |
| 981 | + * |
| 982 | + * (C) Copyright 2003 |
| 983 | + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| 984 | + * |
| 985 | + * See file CREDITS for list of people who contributed to this |
| 986 | + * project. |
| 987 | + * |
| 988 | + * This program is free software; you can redistribute it and/or |
| 989 | + * modify it under the terms of the GNU General Public License as |
| 990 | + * published by the Free Software Foundation; either version 2 of |
| 991 | + * the License, or (at your option) any later version. |
| 992 | + * |
| 993 | + * This program is distributed in the hope that it will be useful, |
| 994 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 995 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 996 | + * GNU General Public License for more details. |
| 997 | + * |
| 998 | + * You should have received a copy of the GNU General Public License |
| 999 | + * along with this program; if not, write to the Free Software |
| 1000 | + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 1001 | + * MA 02111-1307 USA |
| 1002 | + */ |
| 1003 | + |
| 1004 | +#include <common.h> |
| 1005 | +#include <command.h> |
| 1006 | +#include <malloc.h> |
| 1007 | +#include <stdio_dev.h> |
| 1008 | + |
| 1009 | +DECLARE_GLOBAL_DATA_PTR; |
| 1010 | + |
| 1011 | +extern int timer_init(void); |
| 1012 | + |
| 1013 | +extern int incaip_set_cpuclk(void); |
| 1014 | + |
| 1015 | +extern ulong uboot_end_data; |
| 1016 | +extern ulong uboot_end; |
| 1017 | + |
| 1018 | +#ifdef CONFIG_BOOTSTRAP_SERIAL |
| 1019 | +static char *failed = "*** failed ***\n"; |
| 1020 | +#endif |
| 1021 | +/* |
| 1022 | + * mips_io_port_base is the begin of the address space to which x86 style |
| 1023 | + * I/O ports are mapped. |
| 1024 | + */ |
| 1025 | +unsigned long mips_io_port_base = -1; |
| 1026 | + |
| 1027 | +int __board_early_init_f(void) |
| 1028 | +{ |
| 1029 | + /* |
| 1030 | + * Nothing to do in this dummy implementation |
| 1031 | + */ |
| 1032 | + return 0; |
| 1033 | +} |
| 1034 | + |
| 1035 | +int board_early_init_f(void) __attribute__((weak, alias("__board_early_init_f"))); |
| 1036 | +int bootstrap_board_early_init_f(void) __attribute__((weak, alias("board_early_init_f"))); |
| 1037 | + |
| 1038 | +static int bootstrap_init_func_ram (void) |
| 1039 | +{ |
| 1040 | + if ((gd->ram_size = bootstrap_initdram (0)) > 0) { |
| 1041 | + return (0); |
| 1042 | + } |
| 1043 | +#ifdef CONFIG_BOOTSTRAP_SERIAL |
| 1044 | + puts (failed); |
| 1045 | +#endif |
| 1046 | + return (1); |
| 1047 | +} |
| 1048 | + |
| 1049 | +static int bootstrap_display_banner(void) |
| 1050 | +{ |
| 1051 | +#ifdef CONFIG_BOOTSTRAP_SERIAL |
| 1052 | + puts ("bootstrap..."); |
| 1053 | +#endif |
| 1054 | + return (0); |
| 1055 | +} |
| 1056 | + |
| 1057 | +static int bootstrap_init_baudrate (void) |
| 1058 | +{ |
| 1059 | +#if defined(CONFIG_BOOTSTRAP_BAUDRATE) |
| 1060 | + gd->baudrate = CONFIG_BOOTSTRAP_BAUDRATE; |
| 1061 | +#else |
| 1062 | + gd->baudrate = CONFIG_BAUDRATE; |
| 1063 | +#endif |
| 1064 | + return 0; |
| 1065 | +} |
| 1066 | + |
| 1067 | +/* |
| 1068 | + * Breath some life into the board... |
| 1069 | + * |
| 1070 | + * The first part of initialization is running from Flash memory; |
| 1071 | + * its main purpose is to initialize the RAM so that we |
| 1072 | + * can relocate the monitor code to RAM. |
| 1073 | + */ |
| 1074 | + |
| 1075 | +/* |
| 1076 | + * All attempts to come up with a "common" initialization sequence |
| 1077 | + * that works for all boards and architectures failed: some of the |
| 1078 | + * requirements are just _too_ different. To get rid of the resulting |
| 1079 | + * mess of board dependend #ifdef'ed code we now make the whole |
| 1080 | + * initialization sequence configurable to the user. |
| 1081 | + * |
| 1082 | + * The requirements for any new initalization function is simple: it |
| 1083 | + * receives a pointer to the "global data" structure as it's only |
| 1084 | + * argument, and returns an integer return code, where 0 means |
| 1085 | + * "continue" and != 0 means "fatal error, hang the system". |
| 1086 | + */ |
| 1087 | +typedef int (init_fnc_t) (void); |
| 1088 | + |
| 1089 | +static init_fnc_t *init_sequence[] = { |
| 1090 | + bootstrap_board_early_init_f, |
| 1091 | + timer_init, |
| 1092 | + bootstrap_init_baudrate,/* initialze baudrate settings */ |
| 1093 | +#ifdef CONFIG_BOOTSTRAP_SERIAL |
| 1094 | + serial_init, /* serial communications setup */ |
| 1095 | +#endif |
| 1096 | + bootstrap_display_banner, /* say that we are here */ |
| 1097 | + bootstrap_checkboard, |
| 1098 | + bootstrap_init_func_ram, |
| 1099 | + NULL, |
| 1100 | +}; |
| 1101 | + |
| 1102 | + |
| 1103 | +void bootstrap_board_init_f(ulong bootflag) |
| 1104 | +{ |
| 1105 | + gd_t gd_data, *id; |
| 1106 | + bd_t *bd; |
| 1107 | + init_fnc_t **init_fnc_ptr; |
| 1108 | + ulong addr, addr_sp, len = (ulong)&uboot_end - CONFIG_BOOTSTRAP_TEXT_BASE; |
| 1109 | + ulong *s; |
| 1110 | + |
| 1111 | + /* Pointer is writable since we allocated a register for it. |
| 1112 | + */ |
| 1113 | + gd = &gd_data; |
| 1114 | + /* compiler optimization barrier needed for GCC >= 3.4 */ |
| 1115 | + __asm__ __volatile__("": : :"memory"); |
| 1116 | + |
| 1117 | + memset ((void *)gd, 0, sizeof (gd_t)); |
| 1118 | + |
| 1119 | + for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { |
| 1120 | + if ((*init_fnc_ptr)() != 0) { |
| 1121 | + bootstrap_hang (); |
| 1122 | + } |
| 1123 | + } |
| 1124 | + |
| 1125 | + /* |
| 1126 | + * Now that we have DRAM mapped and working, we can |
| 1127 | + * relocate the code and continue running from DRAM. |
| 1128 | + */ |
| 1129 | + addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size; |
| 1130 | + |
| 1131 | + /* We can reserve some RAM "on top" here. |
| 1132 | + */ |
| 1133 | + |
| 1134 | + /* round down to next 4 kB limit. |
| 1135 | + */ |
| 1136 | + addr &= ~(4096 - 1); |
| 1137 | + debug ("Top of RAM usable for U-Boot at: %08lx\n", addr); |
| 1138 | + |
| 1139 | + /* Reserve memory for U-Boot code, data & bss |
| 1140 | + * round down to next 16 kB limit |
| 1141 | + */ |
| 1142 | + addr -= len; |
| 1143 | + addr &= ~(16 * 1024 - 1); |
| 1144 | + |
| 1145 | + debug ("Reserving %ldk for U-Boot at: %08lx\n", len >> 10, addr); |
| 1146 | + |
| 1147 | + /* Reserve memory for malloc() arena. |
| 1148 | + */ |
| 1149 | + addr_sp = addr - CONFIG_SYS_MALLOC_LEN; |
| 1150 | + debug ("Reserving %dk for malloc() at: %08lx\n", |
| 1151 | + CONFIG_SYS_MALLOC_LEN >> 10, addr_sp); |
| 1152 | + |
| 1153 | + /* |
| 1154 | + * (permanently) allocate a Board Info struct |
| 1155 | + * and a permanent copy of the "global" data |
| 1156 | + */ |
| 1157 | + addr_sp -= sizeof(bd_t); |
| 1158 | + bd = (bd_t *)addr_sp; |
| 1159 | + gd->bd = bd; |
| 1160 | + debug ("Reserving %zu Bytes for Board Info at: %08lx\n", |
| 1161 | + sizeof(bd_t), addr_sp); |
| 1162 | + |
| 1163 | + addr_sp -= sizeof(gd_t); |
| 1164 | + id = (gd_t *)addr_sp; |
| 1165 | + debug ("Reserving %zu Bytes for Global Data at: %08lx\n", |
| 1166 | + sizeof (gd_t), addr_sp); |
| 1167 | + |
| 1168 | + /* Reserve memory for boot params. |
| 1169 | + */ |
| 1170 | + addr_sp -= CONFIG_SYS_BOOTPARAMS_LEN; |
| 1171 | + bd->bi_boot_params = addr_sp; |
| 1172 | + debug ("Reserving %dk for boot params() at: %08lx\n", |
| 1173 | + CONFIG_SYS_BOOTPARAMS_LEN >> 10, addr_sp); |
| 1174 | + |
| 1175 | + /* |
| 1176 | + * Finally, we set up a new (bigger) stack. |
| 1177 | + * |
| 1178 | + * Leave some safety gap for SP, force alignment on 16 byte boundary |
| 1179 | + * Clear initial stack frame |
| 1180 | + */ |
| 1181 | + addr_sp -= 16; |
| 1182 | + addr_sp &= ~0xF; |
| 1183 | + s = (ulong *)addr_sp; |
| 1184 | + *s-- = 0; |
| 1185 | + *s-- = 0; |
| 1186 | + addr_sp = (ulong)s; |
| 1187 | + debug ("Stack Pointer at: %08lx\n", addr_sp); |
| 1188 | + |
| 1189 | + /* |
| 1190 | + * Save local variables to board info struct |
| 1191 | + */ |
| 1192 | + bd->bi_memstart = CONFIG_SYS_SDRAM_BASE; /* start of DRAM memory */ |
| 1193 | + bd->bi_memsize = gd->ram_size; /* size of DRAM memory in bytes */ |
| 1194 | + bd->bi_baudrate = gd->baudrate; /* Console Baudrate */ |
| 1195 | + |
| 1196 | + memcpy (id, (void *)gd, sizeof (gd_t)); |
| 1197 | + |
| 1198 | + /* On the purple board we copy the code in a special way |
| 1199 | + * in order to solve flash problems |
| 1200 | + */ |
| 1201 | + relocate_code (addr_sp, id, addr); |
| 1202 | + |
| 1203 | + /* NOTREACHED - relocate_code() does not return */ |
| 1204 | +} |
| 1205 | +/************************************************************************ |
| 1206 | + * |
| 1207 | + * This is the next part if the initialization sequence: we are now |
| 1208 | + * running from RAM and have a "normal" C environment, i. e. global |
| 1209 | + * data can be written, BSS has been cleared, the stack size in not |
| 1210 | + * that critical any more, etc. |
| 1211 | + * |
| 1212 | + ************************************************************************ |
| 1213 | + */ |
| 1214 | + |
| 1215 | +void bootstrap_board_init_r (gd_t *id, ulong dest_addr) |
| 1216 | +{ |
| 1217 | + extern void malloc_bin_reloc (void); |
| 1218 | + extern void copy_and_jump(void); |
| 1219 | + |
| 1220 | + bd_t *bd; |
| 1221 | + |
| 1222 | + gd = id; |
| 1223 | + gd->flags |= GD_FLG_RELOC; /* tell others: relocation done */ |
| 1224 | + |
| 1225 | + debug ("Now running in RAM - U-Boot at: %08lx\n", dest_addr); |
| 1226 | + |
| 1227 | + gd->reloc_off = dest_addr - CONFIG_BOOTSTRAP_TEXT_BASE; |
| 1228 | + |
| 1229 | + bd = gd->bd; |
| 1230 | + |
| 1231 | + /* The Malloc area is immediately below the monitor copy in DRAM */ |
| 1232 | + mem_malloc_init(CONFIG_BOOTSTRAP_BASE + gd->reloc_off - |
| 1233 | + CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN); |
| 1234 | + malloc_bin_reloc(); |
| 1235 | + |
| 1236 | + copy_and_jump(); |
| 1237 | + |
| 1238 | + /* NOTREACHED - no way out of command loop except booting */ |
| 1239 | +} |
| 1240 | + |
| 1241 | +void bootstrap_hang (void) |
| 1242 | +{ |
| 1243 | +#ifdef CONFIG_BOOTSTRAP_SERIAL |
| 1244 | + puts ("### ERROR ### Please RESET the board ###\n"); |
| 1245 | +#endif |
| 1246 | + for (;;); |
| 1247 | +} |
| 1248 | --- a/common/Makefile |
| 1249 | +++ b/common/Makefile |
| 1250 | @@ -24,6 +24,9 @@ |
| 1251 | include $(TOPDIR)/config.mk |
| 1252 | |
| 1253 | LIB = $(obj)libcommon.a |
| 1254 | +BOOTSTRAP_LIB = $(obj)libcommon_bootstrap.a |
| 1255 | + |
| 1256 | +BOOTSTRAP_LIB-$(CONFIG_BOOTSTRAP) = $(BOOTSTRAP_LIB) |
| 1257 | |
| 1258 | AOBJS = |
| 1259 | |
| 1260 | @@ -168,18 +171,27 @@ |
| 1261 | COBJS-$(CONFIG_UPDATE_TFTP) += update.o |
| 1262 | COBJS-$(CONFIG_USB_KEYBOARD) += usb_kbd.o |
| 1263 | |
| 1264 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP) += dlmalloc.o |
| 1265 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP_SERIAL) += console_bootstrap.o |
| 1266 | + |
| 1267 | +BOOTSTRAP_COBJS := $(sort $(BOOTSTRAP_COBJS-y)) |
| 1268 | +BOOTSTRAP_OBJS := $(addprefix $(obj),$(BOOTSTRAP_COBJS)) |
| 1269 | + |
| 1270 | |
| 1271 | COBJS := $(sort $(COBJS-y)) |
| 1272 | -SRCS := $(AOBJS:.o=.S) $(COBJS:.o=.c) |
| 1273 | +SRCS := $(AOBJS:.o=.S) $(COBJS:.o=.c) $(BOOTSTRAP_COBJS:.o=.c) |
| 1274 | OBJS := $(addprefix $(obj),$(AOBJS) $(COBJS)) |
| 1275 | |
| 1276 | CPPFLAGS += -I.. |
| 1277 | |
| 1278 | -all: $(LIB) $(AOBJS) |
| 1279 | +all: $(LIB) $(BOOTSTRAP_LIB-y) $(AOBJS) |
| 1280 | |
| 1281 | $(LIB): $(obj).depend $(OBJS) |
| 1282 | $(AR) $(ARFLAGS) $@ $(OBJS) |
| 1283 | |
| 1284 | +$(BOOTSTRAP_LIB): $(obj).depend $(BOOTSTRAP_OBJS) |
| 1285 | + $(AR) $(ARFLAGS) $@ $(BOOTSTRAP_OBJS) |
| 1286 | + |
| 1287 | $(obj)env_embedded.o: $(src)env_embedded.c $(obj)../tools/envcrc |
| 1288 | $(CC) $(AFLAGS) -Wa,--no-warn \ |
| 1289 | -DENV_CRC=$(shell $(obj)../tools/envcrc) \ |
| 1290 | --- /dev/null |
| 1291 | +++ b/common/console_bootstrap.c |
| 1292 | @@ -0,0 +1,81 @@ |
| 1293 | +/* |
| 1294 | + * (C) Copyright 2000 |
| 1295 | + * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it |
| 1296 | + * |
| 1297 | + * See file CREDITS for list of people who contributed to this |
| 1298 | + * project. |
| 1299 | + * |
| 1300 | + * This program is free software; you can redistribute it and/or |
| 1301 | + * modify it under the terms of the GNU General Public License as |
| 1302 | + * published by the Free Software Foundation; either version 2 of |
| 1303 | + * the License, or (at your option) any later version. |
| 1304 | + * |
| 1305 | + * This program is distributed in the hope that it will be useful, |
| 1306 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 1307 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 1308 | + * GNU General Public License for more details. |
| 1309 | + * |
| 1310 | + * You should have received a copy of the GNU General Public License |
| 1311 | + * along with this program; if not, write to the Free Software |
| 1312 | + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 1313 | + * MA 02111-1307 USA |
| 1314 | + */ |
| 1315 | + |
| 1316 | +#include <common.h> |
| 1317 | +#include <stdarg.h> |
| 1318 | +#include <malloc.h> |
| 1319 | + |
| 1320 | +/** U-Boot INITIAL CONSOLE-COMPATIBLE FUNCTION *****************************/ |
| 1321 | + |
| 1322 | +int getc(void) |
| 1323 | +{ |
| 1324 | + /* Send directly to the handler */ |
| 1325 | + return serial_getc(); |
| 1326 | +} |
| 1327 | + |
| 1328 | +int tstc(void) |
| 1329 | +{ |
| 1330 | + /* Send directly to the handler */ |
| 1331 | + return serial_tstc(); |
| 1332 | +} |
| 1333 | + |
| 1334 | +void putc(const char c) |
| 1335 | +{ |
| 1336 | + /* Send directly to the handler */ |
| 1337 | + serial_putc(c); |
| 1338 | +} |
| 1339 | + |
| 1340 | +void puts(const char *s) |
| 1341 | +{ |
| 1342 | + serial_puts(s); |
| 1343 | +} |
| 1344 | + |
| 1345 | +void printf(const char *fmt, ...) |
| 1346 | +{ |
| 1347 | + va_list args; |
| 1348 | + char printbuffer[CONFIG_SYS_PBSIZE]; |
| 1349 | + |
| 1350 | + va_start(args, fmt); |
| 1351 | + |
| 1352 | + /* For this to work, printbuffer must be larger than |
| 1353 | + * anything we ever want to print. |
| 1354 | + */ |
| 1355 | + vsprintf(printbuffer, fmt, args); |
| 1356 | + va_end(args); |
| 1357 | + |
| 1358 | + /* Print the string */ |
| 1359 | + puts(printbuffer); |
| 1360 | +} |
| 1361 | + |
| 1362 | +void vprintf(const char *fmt, va_list args) |
| 1363 | +{ |
| 1364 | + char printbuffer[CONFIG_SYS_PBSIZE]; |
| 1365 | + |
| 1366 | + /* For this to work, printbuffer must be larger than |
| 1367 | + * anything we ever want to print. |
| 1368 | + */ |
| 1369 | + vsprintf(printbuffer, fmt, args); |
| 1370 | + |
| 1371 | + /* Print the string */ |
| 1372 | + puts(printbuffer); |
| 1373 | +} |
| 1374 | --- a/config.mk |
| 1375 | +++ b/config.mk |
| 1376 | @@ -136,7 +136,7 @@ |
| 1377 | ARFLAGS = crv |
| 1378 | endif |
| 1379 | RELFLAGS= $(PLATFORM_RELFLAGS) |
| 1380 | -DBGFLAGS= -g # -DDEBUG |
| 1381 | +DBGFLAGS= -g |
| 1382 | OPTFLAGS= -Os #-fomit-frame-pointer |
| 1383 | ifndef LDSCRIPT |
| 1384 | #LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds.debug |
| 1385 | @@ -146,6 +146,11 @@ |
| 1386 | LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot.lds |
| 1387 | endif |
| 1388 | endif |
| 1389 | +ifeq ($(CONFIG_BOOTSTRAP),y) |
| 1390 | +ifndef BOOTSTRAP_LDSCRIPT |
| 1391 | +BOOTSTRAP_LDSCRIPT := $(TOPDIR)/board/$(BOARDDIR)/u-boot-bootstrap.lds |
| 1392 | +endif |
| 1393 | +endif |
| 1394 | OBJCFLAGS += --gap-fill=0xff |
| 1395 | |
| 1396 | gccincdir := $(shell $(CC) -print-file-name=include) |
| 1397 | @@ -156,6 +161,10 @@ |
| 1398 | CPPFLAGS += -DTEXT_BASE=$(TEXT_BASE) |
| 1399 | endif |
| 1400 | |
| 1401 | +ifneq ($(CONFIG_BOOTSTRAP_TEXT_BASE),) |
| 1402 | +CPPFLAGS += -DCONFIG_BOOTSTRAP_TEXT_BASE=$(CONFIG_BOOTSTRAP_TEXT_BASE) |
| 1403 | +endif |
| 1404 | + |
| 1405 | ifneq ($(RESET_VECTOR_ADDRESS),) |
| 1406 | CPPFLAGS += -DRESET_VECTOR_ADDRESS=$(RESET_VECTOR_ADDRESS) |
| 1407 | endif |
| 1408 | @@ -176,6 +185,7 @@ |
| 1409 | endif |
| 1410 | |
| 1411 | CFLAGS += $(call cc-option,-fno-stack-protector) |
| 1412 | +CFLAGS += $(call cc-option,-ffunction-sections) |
| 1413 | |
| 1414 | # avoid trigraph warnings while parsing pci.h (produced by NIOS gcc-2.9) |
| 1415 | # this option have to be placed behind -Wall -- that's why it is here |
| 1416 | @@ -203,6 +213,13 @@ |
| 1417 | LDFLAGS += -Ttext $(TEXT_BASE) |
| 1418 | endif |
| 1419 | |
| 1420 | +ifeq ($(CONFIG_BOOTSTRAP),y) |
| 1421 | +BOOTSTRAP_LDFLAGS += -Bstatic -T $(obj)u-boot-bootstrap.lds $(PLATFORM_LDFLAGS) |
| 1422 | +ifneq ($(CONFIG_BOOTSTRAP_TEXT_BASE),) |
| 1423 | +BOOTSTRAP_LDFLAGS += -Ttext $(CONFIG_BOOTSTRAP_TEXT_BASE) |
| 1424 | +endif |
| 1425 | +endif |
| 1426 | + |
| 1427 | # Location of a usable BFD library, where we define "usable" as |
| 1428 | # "built for ${HOST}, supports ${TARGET}". Sensible values are |
| 1429 | # - When cross-compiling: the root of the cross-environment |
| 1430 | --- a/include/common.h |
| 1431 | +++ b/include/common.h |
| 1432 | @@ -722,6 +722,27 @@ |
| 1433 | int cpu_release(int nr, int argc, char *argv[]); |
| 1434 | #endif |
| 1435 | |
| 1436 | +/* Bootstrap specific code */ |
| 1437 | +#ifdef CONFIG_BOOTSTRAP |
| 1438 | +void bootstrap_hang(void) __attribute__ ((noreturn)); |
| 1439 | +void bootstrap_board_init_f(ulong) __attribute__ ((noreturn)); |
| 1440 | +void bootstrap_board_init_r(gd_t *, ulong) __attribute__ ((noreturn)); |
| 1441 | +int bootstrap_checkboard(void); |
| 1442 | + |
| 1443 | +int bootstrap_serial_init(void); |
| 1444 | +void bootstrap_serial_exit(void); |
| 1445 | +void bootstrap_serial_setbrg(void); |
| 1446 | +void bootstrap_serial_putc(const char); |
| 1447 | +void bootstrap_serial_putc_raw(const char); |
| 1448 | +void bootstrap_serial_puts(const char *); |
| 1449 | +int bootstrap_serial_getc(void); |
| 1450 | +int bootstrap_serial_tstc(void); |
| 1451 | + |
| 1452 | +phys_size_t bootstrap_initdram (int); |
| 1453 | + |
| 1454 | +int copy_uboot(void *dst, size_t unc_size, void *src, size_t size); |
| 1455 | +#endif |
| 1456 | + |
| 1457 | #endif /* __ASSEMBLY__ */ |
| 1458 | |
| 1459 | /* Put only stuff here that the assembler can digest */ |
| 1460 | --- a/lib_generic/Makefile |
| 1461 | +++ b/lib_generic/Makefile |
| 1462 | @@ -24,6 +24,9 @@ |
| 1463 | include $(TOPDIR)/config.mk |
| 1464 | |
| 1465 | LIB = $(obj)libgeneric.a |
| 1466 | +BOOTSTRAP_LIB = $(obj)libgeneric_bootstrap.a |
| 1467 | + |
| 1468 | +BOOTSTRAP_LIB-$(CONFIG_BOOTSTRAP) = $(BOOTSTRAP_LIB) |
| 1469 | |
| 1470 | COBJS-$(CONFIG_ADDR_MAP) += addr_map.o |
| 1471 | COBJS-$(CONFIG_BZIP2) += bzlib.o |
| 1472 | @@ -50,14 +53,37 @@ |
| 1473 | COBJS-y += vsprintf.o |
| 1474 | COBJS-$(CONFIG_ZLIB) += zlib.o |
| 1475 | COBJS-$(CONFIG_RBTREE) += rbtree.o |
| 1476 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP) += string.o |
| 1477 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP) += vsprintf.o |
| 1478 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP) += div64.o |
| 1479 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP) += ctype.o |
| 1480 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP) += time.o |
| 1481 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP) += bootstrap.o |
| 1482 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP_GZIP) += zlib.o |
| 1483 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP_GZIP) += gunzip.o |
| 1484 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP_GZIP) += crc32.o |
| 1485 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP_BZIP2) += bzlib.o |
| 1486 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP_BZIP2) += bzlib_crctable.o |
| 1487 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP_BZIP2) += bzlib_decompress.o |
| 1488 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP_BZIP2) += bzlib_randtable.o |
| 1489 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP_BZIP2) += bzlib_huffman.o |
| 1490 | + |
| 1491 | +BOOTSTRAP_COBJS := $(BOOTSTRAP_COBJS-y) |
| 1492 | +BOOTSTRAP_OBJS := $(addprefix $(obj),$(BOOTSTRAP_COBJS)) |
| 1493 | |
| 1494 | COBJS := $(COBJS-y) |
| 1495 | -SRCS := $(COBJS:.o=.c) |
| 1496 | +SRCS := $(COBJS:.o=.c) $(BOOTSTRAP_COBJS:.o=.c) |
| 1497 | OBJS := $(addprefix $(obj),$(COBJS)) |
| 1498 | |
| 1499 | +all: $(obj).depend $(LIB) $(BOOTSTRAP_LIB-y) |
| 1500 | + |
| 1501 | $(LIB): $(obj).depend $(OBJS) |
| 1502 | $(AR) $(ARFLAGS) $@ $(OBJS) |
| 1503 | |
| 1504 | +$(BOOTSTRAP_LIB): $(obj).depend $(BOOTSTRAP_OBJS) |
| 1505 | + $(AR) $(ARFLAGS) $@ $(BOOTSTRAP_OBJS) |
| 1506 | + |
| 1507 | + |
| 1508 | ######################################################################### |
| 1509 | |
| 1510 | # defines $(obj).depend target |
| 1511 | --- /dev/null |
| 1512 | +++ b/lib_generic/bootstrap.c |
| 1513 | @@ -0,0 +1,95 @@ |
| 1514 | +/* |
| 1515 | + * (C) Copyright 2010 Industrie Dial Face S.p.A. |
| 1516 | + * Luigi 'Comio' Mantellini, luigi.mantellini@idf-hit.com |
| 1517 | + * |
| 1518 | + * (C) Copyright 2003 |
| 1519 | + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
| 1520 | + * |
| 1521 | + * See file CREDITS for list of people who contributed to this |
| 1522 | + * project. |
| 1523 | + * |
| 1524 | + * This program is free software; you can redistribute it and/or |
| 1525 | + * modify it under the terms of the GNU General Public License as |
| 1526 | + * published by the Free Software Foundation; either version 2 of |
| 1527 | + * the License, or (at your option) any later version. |
| 1528 | + * |
| 1529 | + * This program is distributed in the hope that it will be useful, |
| 1530 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 1531 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 1532 | + * GNU General Public License for more details. |
| 1533 | + * |
| 1534 | + * You should have received a copy of the GNU General Public License |
| 1535 | + * along with this program; if not, write to the Free Software |
| 1536 | + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 1537 | + * MA 02111-1307 USA |
| 1538 | + */ |
| 1539 | + |
| 1540 | +#include <common.h> |
| 1541 | +#include <command.h> |
| 1542 | +#include <stdio_dev.h> |
| 1543 | + |
| 1544 | +#ifdef CONFIG_BOOTSTRAP_LZMA |
| 1545 | +#include <lzma/LzmaTypes.h> |
| 1546 | +#include <lzma/LzmaDec.h> |
| 1547 | +#include <lzma/LzmaTools.h> |
| 1548 | +#endif /* CONFIG_BOOTSTRAP_LZMA */ |
| 1549 | + |
| 1550 | +#ifdef CONFIG_BOOTSTRAP_LZO |
| 1551 | +#include <linux/lzo.h> |
| 1552 | +#endif /* CONFIG_BOOTSTRAP_LZO */ |
| 1553 | + |
| 1554 | +#ifdef CONFIG_BOOTSTRAP_BZIP2 |
| 1555 | +#include <bzlib.h> |
| 1556 | +#endif |
| 1557 | + |
| 1558 | +DECLARE_GLOBAL_DATA_PTR; |
| 1559 | + |
| 1560 | +#if defined(CONFIG_BOOTSTRAP_SERIAL) |
| 1561 | +static const char *algo = |
| 1562 | +#if defined(CONFIG_BOOTSTRAP_GZIP) |
| 1563 | + "gzip"; |
| 1564 | +#elif defined(CONFIG_BOOTSTRAP_LZMA) |
| 1565 | + "lzma"; |
| 1566 | +#elif defined(CONFIG_BOOTSTRAP_LZO) |
| 1567 | + "lzo"; |
| 1568 | +#elif defined(CONFIG_BOOTSTRAP_BZIP2) |
| 1569 | + "bzip2"; |
| 1570 | +#else |
| 1571 | + "flat"; |
| 1572 | +#endif |
| 1573 | +#endif |
| 1574 | + |
| 1575 | +int copy_uboot(void *dst, size_t unc_size, void *src, size_t size) |
| 1576 | +{ |
| 1577 | + int ret; |
| 1578 | + debug("copy from %p (%d) to %p (%d)\n", src, size, dst, unc_size); |
| 1579 | +#if defined(CONFIG_BOOTSTRAP_SERIAL) |
| 1580 | + printf("Uncompressing payload (%s)...", algo); |
| 1581 | +#endif |
| 1582 | +#if defined(CONFIG_BOOTSTRAP_GZIP) |
| 1583 | + ret = gunzip(dst, unc_size, src, &size); |
| 1584 | +#elif defined(CONFIG_BOOTSTRAP_LZMA) |
| 1585 | + SizeT outsize = unc_size; |
| 1586 | + ret = lzmaBuffToBuffDecompress(dst, &outsize, src, size); |
| 1587 | +#elif defined(CONFIG_BOOTSTRAP_LZO) |
| 1588 | + uint unc_len = unc_size; |
| 1589 | + ret = lzop_decompress(src, size, dst, &unc_len); |
| 1590 | +#elif defined(CONFIG_BOOTSTRAP_BZIP2) |
| 1591 | + uint unc_len = unc_size; |
| 1592 | + ret = BZ2_bzBuffToBuffDecompress ((char*)dst, &unc_len, (char *)src, size, CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0); |
| 1593 | +#else |
| 1594 | + memcpy(dst, src, size); |
| 1595 | + ret = 0; |
| 1596 | +#endif |
| 1597 | + if (ret) { |
| 1598 | +#if defined(CONFIG_BOOTSTRAP_SERIAL) |
| 1599 | + printf("failed with error %d.\n", ret); |
| 1600 | +#endif |
| 1601 | + bootstrap_hang(); |
| 1602 | + } else { |
| 1603 | +#if defined(CONFIG_BOOTSTRAP_SERIAL) |
| 1604 | + puts("done.\n"); |
| 1605 | +#endif |
| 1606 | + } |
| 1607 | + return ret; |
| 1608 | +} |
| 1609 | --- a/lib_generic/lzma/Makefile |
| 1610 | +++ b/lib_generic/lzma/Makefile |
| 1611 | @@ -32,7 +32,9 @@ |
| 1612 | |
| 1613 | CFLAGS += -D_LZMA_PROB32 |
| 1614 | |
| 1615 | -COBJS-$(CONFIG_LZMA) += LzmaDec.o LzmaTools.o |
| 1616 | +COBJS-$(CONFIG_LZMA)$(CONFIG_BOOTSTRAP_LZMA) += LzmaDec.o LzmaTools.o |
| 1617 | + |
| 1618 | +COBJS-y += $(COBJS-yy) |
| 1619 | |
| 1620 | COBJS = $(COBJS-y) |
| 1621 | SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) |
| 1622 | --- a/lib_generic/lzo/Makefile |
| 1623 | +++ b/lib_generic/lzo/Makefile |
| 1624 | @@ -27,7 +27,9 @@ |
| 1625 | |
| 1626 | SOBJS = |
| 1627 | |
| 1628 | -COBJS-$(CONFIG_LZO) += lzo1x_decompress.o |
| 1629 | +COBJS-$(CONFIG_LZO)$(CONFIG_BOOTSTRAP_LZO) += lzo1x_decompress.o |
| 1630 | + |
| 1631 | +COBJS-y += $(OBJS-yy) |
| 1632 | |
| 1633 | COBJS = $(COBJS-y) |
| 1634 | SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) |
| 1635 | --- a/cpu/mips/Makefile |
| 1636 | +++ b/cpu/mips/Makefile |
| 1637 | @@ -24,25 +24,46 @@ |
| 1638 | include $(TOPDIR)/config.mk |
| 1639 | |
| 1640 | LIB = $(obj)lib$(CPU).a |
| 1641 | +BOOTSTRAP_LIB = $(obj)lib$(CPU)_bootstrap.a |
| 1642 | + |
| 1643 | +BOOTSTRAP_LIB-$(CONFIG_BOOTSTRAP) = $(BOOTSTRAP_LIB) |
| 1644 | |
| 1645 | START = start.o |
| 1646 | SOBJS-y = cache.o |
| 1647 | -COBJS-y = cpu.o interrupts.o |
| 1648 | +COBJS-y = cpu.o reset.o interrupts.o |
| 1649 | |
| 1650 | SOBJS-$(CONFIG_INCA_IP) += incaip_wdt.o |
| 1651 | COBJS-$(CONFIG_INCA_IP) += asc_serial.o incaip_clock.o |
| 1652 | +#COBJS-$(CONFIG_IFX_ASC) += ifx_asc.o |
| 1653 | COBJS-$(CONFIG_PURPLE) += asc_serial.o |
| 1654 | COBJS-$(CONFIG_SOC_AU1X00) += au1x00_eth.o au1x00_serial.o au1x00_usb_ohci.o |
| 1655 | |
| 1656 | -SRCS := $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) |
| 1657 | +#BOOTSTRAP_START = start_bootstrap.o |
| 1658 | +BOOTSTRAP_START-$(CONFIG_BOOTSTRAP) += start_bootstrap.o #$(BOOTSTRAP_START) |
| 1659 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP) += cpu.o interrupts.o reset_bootstrap.o |
| 1660 | +BOOTSTRAP_SOBJS-$(CONFIG_BOOTSTRAP) += cache.o |
| 1661 | +BOOTSTRAP_COBJS-$(CONFIG_DANUBE) += danube-clock.o |
| 1662 | +BOOTSTRAP_COBJS-$(CONFIG_AR9) += ar9-clock.o |
| 1663 | +BOOTSTRAP_COBJS-$(CONFIG_BOOTSTRAP_SERIAL) += ifx_asc.o |
| 1664 | + |
| 1665 | +BOOTSTRAP_OBJS := $(addprefix $(obj),$(BOOTSTRAP_SOBJS-y) $(BOOTSTRAP_COBJS-y)) |
| 1666 | +BOOTSTRAP_START := $(addprefix $(obj),$(BOOTSTRAP_START-y)) |
| 1667 | + |
| 1668 | +SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) $(BOOTSTRAP_START-y:.o=.S) $(BOOTSTRAP_SOBJS-y:.o=.S) $(BOOTSTRAP_COBJS-y:.o=.c) |
| 1669 | OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) |
| 1670 | START := $(addprefix $(obj),$(START)) |
| 1671 | |
| 1672 | -all: $(obj).depend $(START) $(LIB) |
| 1673 | +all: $(obj).depend $(START) $(LIB) $(BOOTSTRAP_START-y) $(BOOTSTRAP_LIB-y) |
| 1674 | |
| 1675 | -$(LIB): $(OBJS) |
| 1676 | +$(LIB): $(OBJS) |
| 1677 | $(AR) $(ARFLAGS) $@ $(OBJS) |
| 1678 | |
| 1679 | +#$(BOOTSTRAP_START): $(obj).depend |
| 1680 | + |
| 1681 | +$(BOOTSTRAP_LIB): $(BOOTSTRAP_OBJS) |
| 1682 | + $(AR) $(ARFLAGS) $@ $(BOOTSTRAP_OBJS) |
| 1683 | + |
| 1684 | + |
| 1685 | ######################################################################### |
| 1686 | |
| 1687 | # defines $(obj).depend target |
| 1688 | |