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This matters for embedded devices, but is probably not observably better for PC hosted OpenOCD.

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git-svn-id: svn://svn.berlios.de/openocd/trunk@647 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
oharboe
2008-05-07 14:25:34 +00:00
parent a197e759ff
commit ee793f0fcb
12 changed files with 142 additions and 240 deletions
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50
src/target/embeddedice.h
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@@ -105,66 +105,20 @@ extern int embeddedice_handshake(arm_jtag_t *jtag_info, int hsbit, u32 timeout);
/* If many embeddedice_write_reg() follow eachother, then the >1 invocations can be this faster version of
* embeddedice_write_reg
*/
static const int embeddedice_num_bits[]={32,5,1};
static __inline__ void embeddedice_write_reg_inner(int chain_pos, int reg_addr, u32 value)
{
#if 1
u32 values[3];
int num_bits[3];
values[0]=value;
num_bits[0]=32;
values[1]=reg_addr;
num_bits[1]=5;
values[2]=1;
num_bits[2]=1;
jtag_add_dr_out(chain_pos,
3,
num_bits,
embeddedice_num_bits,
values,
-1);
#else
scan_field_t fields[3];
u8 field0_out[4];
u8 field1_out[1];
u8 field2_out[1];
fields[0].device = ice_reg->jtag_info->chain_pos;
fields[0].num_bits = 32;
fields[0].out_value = field0_out;
buf_set_u32(fields[0].out_value, 0, 32, value);
fields[0].out_mask = NULL;
fields[0].in_value = NULL;
fields[0].in_check_value = NULL;
fields[0].in_check_mask = NULL;
fields[0].in_handler = NULL;
fields[0].in_handler_priv = NULL;
fields[1].device = ice_reg->jtag_info->chain_pos;
fields[1].num_bits = 5;
fields[1].out_value = field1_out;
buf_set_u32(fields[1].out_value, 0, 5, reg_addr);
fields[1].out_mask = NULL;
fields[1].in_value = NULL;
fields[1].in_check_value = NULL;
fields[1].in_check_mask = NULL;
fields[1].in_handler = NULL;
fields[1].in_handler_priv = NULL;
fields[2].device = ice_reg->jtag_info->chain_pos;
fields[2].num_bits = 1;
fields[2].out_value = field2_out;
buf_set_u32(fields[2].out_value, 0, 1, 1);
fields[2].out_mask = NULL;
fields[2].in_value = NULL;
fields[2].in_check_value = NULL;
fields[2].in_check_mask = NULL;
fields[2].in_handler = NULL;
fields[2].in_handler_priv = NULL;
jtag_add_dr_scan(3, fields, -1);
#endif
}