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Merge pull request #210 from riscv/reset_before_hart_enum

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complete reset before writing to hartsel field
This commit is contained in:
Gleb Gagarin
2018-02-07 18:35:06 -08:00
committed by GitHub
parent 6e278cded6 5c543ee3a1
commit 2e415b3930
1 changed files with 3 additions and 1 deletions
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src/target/riscv/riscv-013.c
+3 -1
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@@ -1164,8 +1164,10 @@ static int examine(struct target *target)
}
/* Reset the Debug Module. */
dmi_write(target, DMI_DMCONTROL, 0);
dmi_write(target, DMI_DMCONTROL, DMI_DMCONTROL_DMACTIVE);
uint32_t max_hartsel_mask = ((1L<<10)-1) << DMI_DMCONTROL_HARTSEL_OFFSET;
dmi_write(target, DMI_DMCONTROL, max_hartsel_mask);
dmi_write(target, DMI_DMCONTROL, max_hartsel_mask | DMI_DMCONTROL_DMACTIVE);
uint32_t dmcontrol = dmi_read(target, DMI_DMCONTROL);