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- bootloader is left in kernel-mode

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- improved flash error handling
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git-svn-id: http://moon:8086/svn/vhdl/trunk@463 cc03376c-175c-47c8-b038-4cd826a8556b
This commit is contained in:
jens
2009-05-02 16:19:31 +00:00
parent efa56c97f2
commit b9bdef1e30
1 changed files with 17 additions and 19 deletions
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lib/CPUs/MIPS/bsp/examples/bootloader/bootloader_with_flash.c
+17 -19
View File
@@ -170,9 +170,7 @@ void Exec_at(void *pEntry)
__asm
(
"mfc0 $26, $12\n" // change exception vector
"li $27, 0xFFBFFFFF\n"
"and $26, $27\n"
"li $26, 0x10000000\n"
"mtc0 $26, $12\n"
);
@@ -269,8 +267,8 @@ int main(int argc, char *argv[])
{
UINT8 buf[256];
srec_t srec;
int result, srec_state, i;
UINT32 haddr;
int srec_state, i;
UINT32 haddr, result;
flash_t flash;
flash_img_hdr_t img_hdr = {0};
flash_img_hdr_t *pImg_hdr;
@@ -295,7 +293,7 @@ int main(int argc, char *argv[])
block_sel = 0x7F & (UINT32)*pDip;
// ----------------------------------------------------------
if (flash_find(&flash, sys_flash_io))
if (IS_ERROR(flash_find(&flash, sys_flash_io)))
{
sputs("Cannot find flash device. Exit now!\n\n");
return 1;
@@ -319,7 +317,6 @@ int main(int argc, char *argv[])
sputs("Booting application from flash (");print_word(flashio_offset);sputs(")...");
ram32 = (UINT32*)pImg_hdr->target_base;
pFlashIO = (UINT32*)(sys_flash_io + pImg_hdr->img_base);
img_size = pImg_hdr->img_size;
@@ -327,8 +324,9 @@ int main(int argc, char *argv[])
for (i=0; i < img_size/4; i++)
ram32[i] = pFlashIO[i];
sputs("done\n\n");
sputs("done\n");
sputs("Execute at ");print_word(pImg_hdr->target_base); sputs("\n\n");
Exec_at((void*)ram32);
}
else
@@ -376,33 +374,33 @@ int main(int argc, char *argv[])
sputs("Flash erase...");
result = flash_erase(&flash, flashio_offset, img_hdr.img_size + sizeof(flash_img_hdr_t));
if (result < 0)
if (IS_ERROR(result))
{
sputs("failed!\n");
sputs("failed (");print_word(result);sputs(")\n");
break;
}
sputs("done\n");
sputs("Flash write...");
result = flash_program(&flash, flashio_offset, (UINT8*)&img_hdr, sizeof(flash_img_hdr_t));
if (result < 0)
if (IS_ERROR(result))
{
sputs("failed!\n");
sputs("failed (");print_word(result);sputs(")\n");
break;
}
result = flash_program(&flash, img_hdr.img_base, (UINT8*)ram32, img_hdr.img_size);
if (result < 0)
result = flash_program(&flash, img_hdr.img_base, (UINT8*)img_hdr.target_base, img_hdr.img_size);
if (IS_ERROR(result))
{
sputs("failed!\n");
sputs("failed (");print_word(result);sputs(")\n");
break;
}
sputs("done\n");
sputs("Flash verify...");
result = flash_verify(&flash, img_hdr.img_base, (UINT8*)ram32, img_hdr.img_size);
if (result < 0)
result = flash_verify(&flash, img_hdr.img_base, (UINT8*)img_hdr.target_base, img_hdr.img_size);
if (IS_ERROR(result))
{
sputs("failed!\n");
sputs("failed (");print_word(result);sputs(")\n");
break;
}
sputs("passed\n");
@@ -416,7 +414,7 @@ int main(int argc, char *argv[])
result = -1;
break;
}
if (result < 0)
if (IS_ERROR(result))
{
*pReg = 0x40000000;
break;