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Properly retry system bus access if busy error was detected.

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This commit is contained in:
Darius Rad
2018-05-01 11:44:39 -04:00
parent cb282e81bc
commit 31494f68a4
1 changed files with 2 additions and 0 deletions
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src/target/riscv/riscv-013.c
+2
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@@ -1913,6 +1913,7 @@ static int read_memory_bus_v1(struct target *target, target_addr_t address,
dmi_write(target, DMI_SBCS, DMI_SBCS_SBBUSYERROR);
next_address = sb_read_address(target);
info->bus_master_read_delay += info->bus_master_read_delay / 10 + 1;
continue;
}
unsigned error = get_field(sbcs, DMI_SBCS_SBERROR);
@@ -2351,6 +2352,7 @@ static int write_memory_bus_v1(struct target *target, target_addr_t address,
dmi_write(target, DMI_SBCS, DMI_SBCS_SBBUSYERROR);
next_address = sb_read_address(target);
info->bus_master_write_delay += info->bus_master_write_delay / 10 + 1;
continue;
}
unsigned error = get_field(sbcs, DMI_SBCS_SBERROR);