[adm5120] from now on, the lzma loader is able to pass parameters to the kernel

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7723 3c298f89-4303-0410-b956-a3cf2f4a3e73

4 files changed, 146 insertions, 23 deletions

diff --git a/target/linux/adm5120-2.6/image/lzma-loader/Makefile b/target/linux/adm5120-2.6/image/lzma-loader/Makefile
index 0245e44cc..74866e765 100644
--- a/target/linux/adm5120-2.6/image/lzma-loader/Makefile
+++ b/target/linux/adm5120-2.6/image/lzma-loader/Makefile
@@ -8,13 +8,18 @@
 
 include $(TOPDIR)/rules.mk
 
-LOADER		:= adm5120
-LOADER_NAME	:= loader-$(LOADER)
+LOADER		:= loader.bin
+LOADER_NAME	:= $(basename $(notdir $(LOADER)))
 LOADER_DATA 	:=
+TARGET_DIR	:=
 
-LOADER_BIN	:= $(KDIR)/$(LOADER_NAME).bin
-LOADER_GZ	:= $(KDIR)/$(LOADER_NAME).gz
-LOADER_ELF	:= $(KDIR)/$(LOADER_NAME).elf
+ifeq ($(TARGET_DIR),)
+TARGET_DIR	:= $(KDIR)
+endif
+
+LOADER_BIN	:= $(TARGET_DIR)/$(LOADER_NAME).bin
+LOADER_GZ	:= $(TARGET_DIR)/$(LOADER_NAME).gz
+LOADER_ELF	:= $(TARGET_DIR)/$(LOADER_NAME).elf
 
 LZMA_STARTUP_ORG:= 0
 LZMA_TEXT_START	:= 0x80300000
@@ -22,7 +27,7 @@ LZMA_TEXT_START	:= 0x80300000
 PKG_NAME := lzma-loader
 PKG_BUILD_DIR := $(KDIR)/$(PKG_NAME)
 
-.PHONY : loader-compile
+.PHONY : loader-compile loader.bin loader.elf loader.gz
 
 $(PKG_BUILD_DIR)/.prepared:
 	mkdir $(PKG_BUILD_DIR)
@@ -34,23 +39,25 @@ loader-compile: $(PKG_BUILD_DIR)/.prepared
 		LZMA_STARTUP_ORG=$(LZMA_STARTUP_ORG) \
 		LZMA_TEXT_START=$(LZMA_TEXT_START) \
 		LOADER_DATA=$(LOADER_DATA) \
+		CONFIG_BOARD=$(CONFIG_BOARD) \
+		CONFIG_PASS_KARGS=$(CONFIG_PASS_KARGS) \
 		clean all
 
-$(LOADER_GZ): $(PKG_BUILD_DIR)/loader.bin
-	gzip -nc9 $< > $@
+loader.gz: $(PKG_BUILD_DIR)/loader.bin
+	gzip -nc9 $< > $(LOADER_GZ)
 
-$(LOADER_ELF) : $(PKG_BUILD_DIR)/loader.elf
-	$(CP) $< $@
+loader.elf: $(PKG_BUILD_DIR)/loader.elf
+	$(CP) $< $(LOADER_ELF)
 
-$(LOADER_BIN) : $(PKG_BUILD_DIR)/loader.bin
-	$(CP) $< $@
+loader.bin: $(PKG_BUILD_DIR)/loader.bin
+	$(CP) $< $(LOADER_BIN)
 
 download:
 prepare: $(PKG_BUILD_DIR)/.prepared
-compile: loader-compile $(LOADER_BIN) $(LOADER_GZ) $(LOADER_ELF)
+compile: loader-compile
 
 install:
 
 clean:
 	rm -rf $(PKG_BUILD_DIR)
-	rm -f $(KDIR)/loader-*.gz $(KDIR)/loader-*.elf $(KDIR)/loader-*.bin
+
diff --git a/target/linux/adm5120-2.6/image/lzma-loader/src/Makefile b/target/linux/adm5120-2.6/image/lzma-loader/src/Makefile
index 0f4ffa63a..a3749f2ee 100644
--- a/target/linux/adm5120-2.6/image/lzma-loader/src/Makefile
+++ b/target/linux/adm5120-2.6/image/lzma-loader/src/Makefile
@@ -25,6 +25,8 @@ LOADADDR	:= 0x80001000
 LZMA_TEXT_START	:= 0x80500000
 LZMA_STARTUP_ORG:= 0
 LOADER_DATA	:=
+CONFIG_PASS_KARGS :=
+CONFIG_BOARD	:=
 
 CC		:= $(CROSS_COMPILE)gcc
 LD		:= $(CROSS_COMPILE)ld
@@ -55,6 +57,16 @@ else
 CFLAGS		+= -D_LZMA_IN_CB
 endif
 
+ifneq ($(strip $(CONFIG_PASS_KARGS)),)
+CFLAGS		+= -DCONFIG_PASS_KARGS
+endif
+
+BOARD_DEF := $(strip $(CONFIG_BOARD))
+BOARD_DEF := $(shell echo $(BOARD_DEF) | tr a-z A-Z | tr -d -)
+ifneq ($(BOARD_DEF),)
+CFLAGS		+= -DCONFIG_BOARD_$(BOARD_DEF)
+endif
+
 all: loader.bin
 
 # Don't build dependencies, this may die if $(CC) isn't gcc
@@ -80,7 +92,7 @@ loader.elf: $(OBJECTS)
 mrproper: clean
 
 clean:
-	rm -f *.gz *.elf *.bin *.o
+	rm -f *.elf *.bin *.o
 
 
 
diff --git a/target/linux/adm5120-2.6/image/lzma-loader/src/config.h b/target/linux/adm5120-2.6/image/lzma-loader/src/config.h
new file mode 100644
index 000000000..5002b1819
--- /dev/null
+++ b/target/linux/adm5120-2.6/image/lzma-loader/src/config.h
@@ -0,0 +1,83 @@
+/*
+ * Cellvision/SparkLAN boards
+ */
+
+#if defined(CONFIG_BOARD_CAS630)
+#  define CONFIG_BOARD_NAME	"CAS-630"
+#endif
+
+#if defined(CONFIG_BOARD_CAS670)
+#  define CONFIG_BOARD_NAME	"CAS-670"
+#endif
+
+#if defined(CONFIG_BOARD_CAS700)
+#  define CONFIG_BOARD_NAME	"CAS-700"
+#endif
+
+#if defined(CONFIG_BOARD_CAS790)
+#  define CONFIG_BOARD_NAME	"CAS-790"
+#endif
+
+#if defined(CONFIG_BOARD_CAS771)
+#  define CONFIG_BOARD_NAME	"CAS-771"
+#endif
+
+#if defined(CONFIG_BOARD_CAS861)
+#  define CONFIG_BOARD_NAME	"CAS-861"
+#endif
+
+#if defined(CONFIG_BOARD_NFS101U)
+#  define CONFIG_BOARD_NAME	"NFS-101U"
+#endif
+
+#if defined(CONFIG_BOARD_NFS202U)
+#  define CONFIG_BOARD_NAME	"NFS-202U"
+#endif
+
+/*
+ * Edimax boards
+ */
+#if defined(CONFIG_BOARD_BR6104K)
+#  define CONFIG_BOARD_NAME	"BR-6104K"
+#endif
+
+#if defined(CONFIG_BOARD_BR6104KP)
+#  define CONFIG_BOARD_NAME	"BR-6104KP"
+#endif
+
+/*
+ * Infineon boards
+ */
+#if defined(CONFIG_BOARD_EASY5120)
+#  define CONFIG_BOARD_NAME	"EASY 5120"
+#endif
+
+#if defined(CONFIG_BOARD_EASY5120RT)
+#  define CONFIG_BOARD_NAME	"EASY 5120-RT"
+#endif
+
+#if defined(CONFIG_BOARD_EASY5120PATA)
+#  define CONFIG_BOARD_NAME	"EASY 5120P-ATA"
+#endif
+
+#if defined(CONFIG_BOARD_EASY83000)
+#  define CONFIG_BOARD_NAME	"EASY 83000"
+#endif
+
+/*
+ * ZyXEL boards
+ */
+#if defined(CONFIG_BOARD_P334WT)
+#  define CONFIG_BOARD_NAME	"P-334WT"
+#endif
+
+#if defined(CONFIG_BOARD_P335)
+#  define CONFIG_BOARD_NAME	"P-335"
+#endif
+
+/*
+ * Default values
+ */
+#ifndef CONFIG_BOARD_NAME
+#  define CONFIG_BOARD_NAME	"ADM5120"
+#endif
diff --git a/target/linux/adm5120-2.6/image/lzma-loader/src/decompress.c b/target/linux/adm5120-2.6/image/lzma-loader/src/decompress.c
index ffc87ee0d..e2f9bee23 100644
--- a/target/linux/adm5120-2.6/image/lzma-loader/src/decompress.c
+++ b/target/linux/adm5120-2.6/image/lzma-loader/src/decompress.c
@@ -36,12 +36,13 @@
  *
  * 19-May-2007 Gabor Juhos
  *   endiannes related cleanups
- *   add support for decompressing an embedded kernel 
+ *   add support for decompressing an embedded kernel
  *
  */
 
 #include <stddef.h>
 
+#include "config.h"
 #include "LzmaDecode.h"
 
 #define ADM5120_FLASH_START	0x1fc00000	/* Flash start */
@@ -109,6 +110,19 @@ extern unsigned char _lzma_data_end[];
 extern void board_init(void);
 extern void board_putc(int ch);
 
+struct env_var {
+	char	*name;
+	char	*value;
+};
+
+#ifdef CONFIG_PASS_KARGS
+#define ENVV(n,v)	{.name = (n), .value = (v)}
+struct env_var env_vars[] = {
+	ENVV("board_name",	CONFIG_BOARD_NAME),
+	ENVV(NULL, NULL)
+};
+#endif
+
 unsigned char *data;
 unsigned long datalen;
 
@@ -167,6 +181,7 @@ static void print_hex(int val)
 	}
 }
 
+#if !(LZMA_WRAPPER)
 static unsigned char *find_kernel(void)
 {
 	struct trx_header *hdr;
@@ -178,7 +193,7 @@ static unsigned char *find_kernel(void)
 	for (ret = ((unsigned char *) KSEG1ADDR(ADM5120_FLASH_START));
 		ret < ((unsigned char *)KSEG1ADDR(ADM5120_FLASH_END));
 		ret += TRX_ALIGN) {
-		
+
 		if (read_le32(ret) == TRX_MAGIC) {
 			hdr = (struct trx_header *)ret;
 			break;
@@ -187,13 +202,13 @@ static unsigned char *find_kernel(void)
 
 	if (hdr == NULL) {
 		print_str("not found!\n");
-		return NULL;	
+		return NULL;
 	}
 
 	print_str("found at ");
 	print_hex((unsigned int)ret);
 	print_str(", kernel in partition ");
-	
+
 	/* compressed kernel is in the partition 0 or 1 */
 	if ((read_le32(&hdr->offsets[1]) == 0) ||
 		(read_le32(&hdr->offsets[1]) > 65536)) {
@@ -203,9 +218,10 @@ static unsigned char *find_kernel(void)
 		ret += read_le32(&hdr->offsets[1]);
 		print_str("1\n");
 	}
-		
+
 	return ret;
 }
+#endif /* !(LZMA_WRAPPER) */
 
 static void halt(void)
 {
@@ -231,7 +247,8 @@ void decompress_entry(unsigned long reg_a0, unsigned long reg_a1,
 
 	board_init();
 
-	print_str("\n\nLZMA loader for ADM5120, Copyright (C) 2007 OpenWrt.org\n\n");
+	print_str("\n\nLZMA loader for " CONFIG_BOARD_NAME
+			", Copyright (C) 2007 OpenWrt.org\n\n");
 
 #if LZMA_WRAPPER
 	data = _lzma_data_start;
@@ -301,8 +318,12 @@ void decompress_entry(unsigned long reg_a0, unsigned long reg_a1,
 
 	print_str("launching kernel...\n\n");
 
+#ifdef CONFIG_PASS_KARGS
+	reg_a0 = 0;
+	reg_a1 = 0;
+	reg_a2 = (unsigned long)env_vars;
+	reg_a3 = 0;
+#endif
 	/* Jump to load address */
 	((kernel_entry) LOADADDR)(reg_a0, reg_a1, reg_a2, reg_a3);
 }
-
-