sh: bzip2/lzma zImage support.

This plugs in bzip2 and lzma support for zImages.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

7 files changed, 55 insertions, 13 deletions

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 9f531ca3c8ea..c4a955d25451 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -18,6 +18,8 @@ config SUPERH
         select HAVE_DMA_API_DEBUG
         select HAVE_PERF_COUNTERS
         select HAVE_KERNEL_GZIP
+        select HAVE_KERNEL_BZIP2
+        select HAVE_KERNEL_LZMA
         select RTC_LIB
         select GENERIC_ATOMIC64
         help
diff --git a/arch/sh/boot/compressed/.gitignore b/arch/sh/boot/compressed/.gitignore
new file mode 100644
index 000000000000..2374a83d87b2
--- /dev/null
+++ b/arch/sh/boot/compressed/.gitignore
@@ -0,0 +1 @@
+vmlinux.bin.*
diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile
index 9531bf1b7c2f..0a4e7af8a71b 100644
--- a/arch/sh/boot/compressed/Makefile
+++ b/arch/sh/boot/compressed/Makefile
@@ -5,6 +5,7 @@
 #
 
 targets         := vmlinux vmlinux.bin vmlinux.bin.gz \
+                   vmlinux.bin.bz2 vmlinux.bin.lzma \
                    head_$(BITS).o misc_$(BITS).o piggy.o
 
 OBJECTS = $(obj)/head_$(BITS).o $(obj)/misc_$(BITS).o $(obj)/cache.o
@@ -38,10 +39,22 @@ $(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(LIBGCC) FORCE
 $(obj)/vmlinux.bin: vmlinux FORCE
         $(call if_changed,objcopy)
 
-$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
+vmlinux.bin.all-y := $(obj)/vmlinux.bin
+
+$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) FORCE
         $(call if_changed,gzip)
+$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE
+        $(call if_changed,bzip2)
+$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE
+        $(call if_changed,lzma)
+
+suffix-$(CONFIG_KERNEL_GZIP)    := gz
+suffix-$(CONFIG_KERNEL_BZIP2)   := bz2
+suffix-$(CONFIG_KERNEL_LZMA)    := lzma
 
 OBJCOPYFLAGS += -R .empty_zero_page
 
-$(obj)/piggy.o: $(obj)/piggy.S $(obj)/vmlinux.bin.gz FORCE
-        $(call if_changed,as_o_S)
+LDFLAGS_piggy.o := -r --format binary --oformat $(ld-bfd) -T
+
+$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.$(suffix-y) FORCE
+        $(call if_changed,ld)
diff --git a/arch/sh/boot/compressed/misc_32.c b/arch/sh/boot/compressed/misc_32.c
index 1ab4f49153be..b86e3596918b 100644
--- a/arch/sh/boot/compressed/misc_32.c
+++ b/arch/sh/boot/compressed/misc_32.c
@@ -41,12 +41,24 @@ extern int _end;
 static unsigned long free_mem_ptr;
 static unsigned long free_mem_end_ptr;
 
-#define HEAP_SIZE             0x10000
+#ifdef CONFIG_HAVE_KERNEL_BZIP2
+#define HEAP_SIZE       0x400000
+#else
+#define HEAP_SIZE       0x10000
+#endif
 
 #ifdef CONFIG_KERNEL_GZIP
 #include "../../../../lib/decompress_inflate.c"
 #endif
 
+#ifdef CONFIG_KERNEL_BZIP2
+#include "../../../../lib/decompress_bunzip2.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZMA
+#include "../../../../lib/decompress_unlzma.c"
+#endif
+
 #ifdef CONFIG_SH_STANDARD_BIOS
 size_t strlen(const char *s)
 {
diff --git a/arch/sh/boot/compressed/misc_64.c b/arch/sh/boot/compressed/misc_64.c
index 0c6894e37115..09b7b7cd24f9 100644
--- a/arch/sh/boot/compressed/misc_64.c
+++ b/arch/sh/boot/compressed/misc_64.c
@@ -40,12 +40,24 @@ extern int _end;
 static unsigned long free_mem_ptr;
 static unsigned long free_mem_end_ptr;
 
-#define HEAP_SIZE             0x10000
+#ifdef CONFIG_HAVE_KERNEL_BZIP2
+#define HEAP_SIZE       0x400000
+#else
+#define HEAP_SIZE       0x10000
+#endif
 
 #ifdef CONFIG_KERNEL_GZIP
 #include "../../../../lib/decompress_inflate.c"
 #endif
 
+#ifdef CONFIG_KERNEL_BZIP2
+#include "../../../../lib/decompress_bunzip2.c"
+#endif
+
+#ifdef CONFIG_KERNEL_LZMA
+#include "../../../../lib/decompress_unlzma.c"
+#endif
+
 void puts(const char *s)
 {
 }
diff --git a/arch/sh/boot/compressed/piggy.S b/arch/sh/boot/compressed/piggy.S
deleted file mode 100644
index 566071926b13..000000000000
--- a/arch/sh/boot/compressed/piggy.S
+++ /dev/null
@@ -1,8 +0,0 @@
-        .global input_len, input_data
-        .data
-input_len:
-        .long   input_data_end - input_data
-input_data:
-        .incbin "arch/sh/boot/compressed/vmlinux.bin.gz"
-input_data_end:
-        .end
diff --git a/arch/sh/boot/compressed/vmlinux.scr b/arch/sh/boot/compressed/vmlinux.scr
new file mode 100644
index 000000000000..f02382ae5c48
--- /dev/null
+++ b/arch/sh/boot/compressed/vmlinux.scr
@@ -0,0 +1,10 @@
+SECTIONS
+{
+  .rodata.compressed : {
+        input_len = .;
+        LONG(input_data_end - input_data) input_data = .;
+        *(.data)
+        output_len = . - 4;
+        input_data_end = .;
+        }
+}