diff options
Diffstat (limited to 'target/linux/ath79/image/lzma-loader')
| -rw-r--r-- | target/linux/ath79/image/lzma-loader/Makefile | 6 | ||||
| -rw-r--r-- | target/linux/ath79/image/lzma-loader/src/Makefile | 13 | ||||
| -rw-r--r-- | target/linux/ath79/image/lzma-loader/src/head.S | 13 | ||||
| -rw-r--r-- | target/linux/ath79/image/lzma-loader/src/loader.c | 2 | ||||
| -rw-r--r-- | target/linux/ath79/image/lzma-loader/src/loader.lds | 1 |
5 files changed, 26 insertions, 9 deletions
diff --git a/target/linux/ath79/image/lzma-loader/Makefile b/target/linux/ath79/image/lzma-loader/Makefile index 9b81e87306..738093a958 100644 --- a/target/linux/ath79/image/lzma-loader/Makefile +++ b/target/linux/ath79/image/lzma-loader/Makefile @@ -47,7 +47,11 @@ loader-compile: $(PKG_BUILD_DIR)/.prepared clean all loader.gz: $(PKG_BUILD_DIR)/loader.bin - gzip -nc9 $< > $(LOADER_GZ) + # Workaround for buggy bootloaders: Some devices + # (TP-Link TL-WR1043ND v1) don't work correctly when + # the uncompressed loader is too small (probably a cache + # invalidation issue) + dd if=$< bs=512K conv=sync | gzip -nc9 > $(LOADER_GZ) loader.elf: $(PKG_BUILD_DIR)/loader.elf $(CP) $< $(LOADER_ELF) diff --git a/target/linux/ath79/image/lzma-loader/src/Makefile b/target/linux/ath79/image/lzma-loader/src/Makefile index 133bf6ee8f..7773f027a2 100644 --- a/target/linux/ath79/image/lzma-loader/src/Makefile +++ b/target/linux/ath79/image/lzma-loader/src/Makefile @@ -21,7 +21,6 @@ LOADER_DATA := BOARD := FLASH_OFFS := FLASH_MAX := -KERNEL_CMDLINE := rootfstype=squashfs CC := $(CROSS_COMPILE)gcc LD := $(CROSS_COMPILE)ld @@ -34,15 +33,17 @@ BIN_FLAGS := -O binary -R .reginfo -R .note -R .comment -R .mdebug \ CFLAGS = -D__KERNEL__ -Wall -Wstrict-prototypes -Wno-trigraphs -Os \ -fno-strict-aliasing -fno-common -fomit-frame-pointer -G 0 \ -mno-abicalls -fno-pic -ffunction-sections -pipe -mlong-calls \ - -fno-common -ffreestanding -fhonour-copts \ + -fno-common -ffreestanding -fhonour-copts -nostartfiles \ -mabi=32 -march=mips32r2 \ -Wa,-32 -Wa,-march=mips32r2 -Wa,-mips32r2 -Wa,--trap CFLAGS += -D_LZMA_PROB32 +CFLAGS += -flto ASFLAGS = $(CFLAGS) -D__ASSEMBLY__ -LDFLAGS = -static --gc-sections -no-warn-mismatch -LDFLAGS += -e startup -T loader.lds -Ttext $(LZMA_TEXT_START) +LDFLAGS = -static -Wl,--gc-sections -Wl,-no-warn-mismatch +LDFLAGS += -Wl,-e,startup -T loader.lds -Wl,-Ttext,$(LZMA_TEXT_START) +LDFLAGS += -flto -fwhole-program O_FORMAT = $(shell $(OBJDUMP) -i | head -2 | grep elf32) @@ -87,7 +88,7 @@ data.o: $(LOADER_DATA) $(LD) -r -b binary --oformat $(O_FORMAT) -T lzma-data.lds -o $@ $< loader: $(OBJECTS) - $(LD) $(LDFLAGS) -o $@ $(OBJECTS) + $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(OBJECTS) loader.bin: loader $(OBJCOPY) $(BIN_FLAGS) $< $@ @@ -96,7 +97,7 @@ loader2.o: loader.bin $(LD) -r -b binary --oformat $(O_FORMAT) -o $@ $< loader.elf: loader2.o - $(LD) -e startup -T loader2.lds -Ttext $(LOADADDR) -o $@ $< + $(LD) -z max-page-size=0x1000 -e startup -T loader2.lds -Ttext $(LOADADDR) -o $@ $< mrproper: clean diff --git a/target/linux/ath79/image/lzma-loader/src/head.S b/target/linux/ath79/image/lzma-loader/src/head.S index 47a7c9bd63..d414b14d11 100644 --- a/target/linux/ath79/image/lzma-loader/src/head.S +++ b/target/linux/ath79/image/lzma-loader/src/head.S @@ -42,6 +42,19 @@ LEAF(startup) mtc0 t0, CP0_STATUS ehb + /* + * Some bootloaders set the 'Kseg0 coherency algorithm' to + * 'Cacheable, noncoherent, write-through, no write allocate' + * and this cause performance issues. Let's go and change it to + * 'Cacheable, noncoherent, write-back, write allocate' + */ + mfc0 t0, CP0_CONFIG + li t1, ~7 #~CONF_CM_CMASK + and t0, t1 + ori t0, 3 #CONF_CM_CACHABLE_NONCOHERENT + mtc0 t0, CP0_CONFIG + nop + mtc0 zero, CP0_COUNT mtc0 zero, CP0_COMPARE ehb diff --git a/target/linux/ath79/image/lzma-loader/src/loader.c b/target/linux/ath79/image/lzma-loader/src/loader.c index cc73eb1721..794c4b6285 100644 --- a/target/linux/ath79/image/lzma-loader/src/loader.c +++ b/target/linux/ath79/image/lzma-loader/src/loader.c @@ -75,7 +75,7 @@ static unsigned long kernel_la; #ifdef CONFIG_KERNEL_CMDLINE #define kernel_argc 2 static const char kernel_cmdline[] = CONFIG_KERNEL_CMDLINE; -static const char *kernel_argv[] = { +static const char *const kernel_argv[] = { NULL, kernel_cmdline, NULL, diff --git a/target/linux/ath79/image/lzma-loader/src/loader.lds b/target/linux/ath79/image/lzma-loader/src/loader.lds index 80cc7ca3ec..01ff852361 100644 --- a/target/linux/ath79/image/lzma-loader/src/loader.lds +++ b/target/linux/ath79/image/lzma-loader/src/loader.lds @@ -13,7 +13,6 @@ SECTIONS { .data : { *(.data) *(.data.*) - . = . + 524288; /* workaround for buggy bootloaders */ } . = ALIGN(32); |