zcy
/
tinyriscv-openocd
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Author: Raúl Sánchez Siles <rsanchezs@infoglobal.es> 

- Fix multi-byte reads on x16 devices used as x8


git-svn-id: svn://svn.berlios.de/openocd/trunk@1886 b42882b7-edfa-0310-969c-e2dbd0fdcd60
__archive__
kc8apf 2009-05-22 17:49:28 +00:00
parent c48ad46aa3
commit aaa6dd927f
1 changed files with 20 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
src/flash/cfi.c
View File

@ -204,9 +204,18 @@ static u8 cfi_get_u8(flash_bank_t *bank, int sector, u32 offset)
static u16 cfi_query_u16(flash_bank_t *bank, int sector, u32 offset)
{
target_t *target = bank->target;
cfi_flash_bank_t *cfi_info = bank->driver_priv;
u8 data[CFI_MAX_BUS_WIDTH * 2];
target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 2, data);
if(cfi_info->x16_as_x8)
{
u8 i;
for(i=0;i<2;i++)
target->type->read_memory(target, flash_address(bank, sector, offset+i), bank->bus_width, 1,
&data[i*bank->bus_width] );
}
else
target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 2, data);
if (bank->target->endianness == TARGET_LITTLE_ENDIAN)
return data[0] | data[bank->bus_width] << 8;
@ -217,9 +226,18 @@ static u16 cfi_query_u16(flash_bank_t *bank, int sector, u32 offset)
static u32 cfi_query_u32(flash_bank_t *bank, int sector, u32 offset)
{
target_t *target = bank->target;
cfi_flash_bank_t *cfi_info = bank->driver_priv;
u8 data[CFI_MAX_BUS_WIDTH * 4];
target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 4, data);
if(cfi_info->x16_as_x8)
{
u8 i;
for(i=0;i<4;i++)
target->type->read_memory(target, flash_address(bank, sector, offset+i), bank->bus_width, 1,
&data[i*bank->bus_width] );
}
else
target->type->read_memory(target, flash_address(bank, sector, offset), bank->bus_width, 4, data);
if (bank->target->endianness == TARGET_LITTLE_ENDIAN)
return data[0] | data[bank->bus_width] << 8 | data[bank->bus_width * 2] << 16 | data[bank->bus_width * 3] << 24;