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In dmi_read(), ignore stale data. 

Fixes Issue #39. Reduces performance about 1%.

Change-Id: I3bfc71cb8e632ecce35c6adeb744177300d54b98
This commit is contained in:
Tim Newsome 2017-12-28 15:59:55 -08:00
parent 0774011e21
commit e36a16701d
1 changed files with 3 additions and 0 deletions
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src/target/riscv/riscv-011.c
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@ -455,6 +455,9 @@ static uint64_t dbus_read(struct target *target, uint16_t address)
dbus_status_t status; dbus_status_t status;
uint16_t address_in; uint16_t address_in;
// First, discard stale data
dbus_scan(target, &address_in, &value, DBUS_OP_READ, address, 0);
unsigned i = 0; unsigned i = 0;
do { do {
status = dbus_scan(target, &address_in, &value, DBUS_OP_READ, address, 0); status = dbus_scan(target, &address_in, &value, DBUS_OP_READ, address, 0);