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

[openwrt/svn-archive/archive.git] / target / linux / adm5120-2.6 / image / lzma-loader / src / decompress.c

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 ffc87ee0db56a3bd4e03a4757e97cdb014ef9314..e2f9bee234e1ce555118724eb3e085cef146b48f 100644 (file)
--- 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);
 }
-
-