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allow minidrivers to implement inner loop of dcc memory writes 

git-svn-id: svn://svn.berlios.de/openocd/trunk@879 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe 2008-07-28 14:37:38 +00:00
parent 0f18744a87
commit db7c3810c2
3 changed files with 406 additions and 407 deletions
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22
src/target/arm7_9_common.c
View File

@ -2195,24 +2195,10 @@ int arm7_9_bulk_write_memory(target_t *target, u32 address, u32 count, u8 *buffe
embeddedice_reg_t *ice_reg = arm7_9->eice_cache->reg_list[EICE_COMMS_DATA].arch_info; embeddedice_reg_t *ice_reg = arm7_9->eice_cache->reg_list[EICE_COMMS_DATA].arch_info;
u8 reg_addr = ice_reg->addr & 0x1f; u8 reg_addr = ice_reg->addr & 0x1f;
int chain_pos = ice_reg->jtag_info->chain_pos; int chain_pos = ice_reg->jtag_info->chain_pos;
/* we want the compiler to duplicate the code, which it does not
* do automatically. embeddedice_write_dcc(chain_pos, reg_addr, buffer, little, count-2);
*/ buffer += (count-2)*4;
if (little)
{
for (i = 1; i < count - 1; i++)
{
embeddedice_write_reg_inner(chain_pos, reg_addr, fast_target_buffer_get_u32(buffer, little));
buffer += 4;
}
} else
{
for (i = 1; i < count - 1; i++)
{
embeddedice_write_reg_inner(chain_pos, reg_addr, fast_target_buffer_get_u32(buffer, little));
buffer += 4;
}
}
embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_COMMS_DATA], fast_target_buffer_get_u32(buffer, little)); embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_COMMS_DATA], fast_target_buffer_get_u32(buffer, little));
} else } else
{ {

11
src/target/embeddedice.c
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@ -548,3 +548,14 @@ int embeddedice_handshake(arm_jtag_t *jtag_info, int hsbit, u32 timeout)
return ERROR_TARGET_TIMEOUT; return ERROR_TARGET_TIMEOUT;
} }
/* this is the inner loop of the open loop DCC write of data to target */
void MINIDRIVER(embeddedice_write_dcc)(int chain_pos, int reg_addr, u8 *buffer, int little, int count)
{
int i;
for (i = 0; i < count; i++)
{
embeddedice_write_reg_inner(chain_pos, reg_addr, fast_target_buffer_get_u32(buffer, little));
buffer += 4;
}
}

2
src/target/embeddedice.h
View File

@ -124,5 +124,7 @@ static __inline__ void embeddedice_write_reg_inner(int chain_pos, int reg_addr,
-1); -1);
} }
void embeddedice_write_dcc(int chain_pos, int reg_addr, u8 *buffer, int little, int count);
#endif /* EMBEDDED_ICE_H */ #endif /* EMBEDDED_ICE_H */