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Merge branch 'bugfix/app_cpu_reset' into 'master'

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esp32: don’t reset APP CPU if it was already reset by OpenOCD

See merge request !848
This commit is contained in:
Ivan Grokhotkov 2017-06-13 18:15:47 +08:00
commit cd89a653e4
1 changed files with 10 additions and 5 deletions
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15
components/esp32/cpu_start.c
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@ -142,11 +142,16 @@ void IRAM_ATTR call_start_cpu0()
Cache_Flush(1);
Cache_Read_Enable(1);
esp_cpu_unstall(1);
//Enable clock gating and reset the app cpu.
DPORT_SET_PERI_REG_MASK(DPORT_APPCPU_CTRL_B_REG, DPORT_APPCPU_CLKGATE_EN);
DPORT_CLEAR_PERI_REG_MASK(DPORT_APPCPU_CTRL_C_REG, DPORT_APPCPU_RUNSTALL);
DPORT_SET_PERI_REG_MASK(DPORT_APPCPU_CTRL_A_REG, DPORT_APPCPU_RESETTING);
DPORT_CLEAR_PERI_REG_MASK(DPORT_APPCPU_CTRL_A_REG, DPORT_APPCPU_RESETTING);
// Enable clock and reset APP CPU. Note that OpenOCD may have already
// enabled clock and taken APP CPU out of reset. In this case don't reset
// APP CPU again, as that will clear the breakpoints which may have already
// been set.
if (!DPORT_GET_PERI_REG_MASK(DPORT_APPCPU_CTRL_B_REG, DPORT_APPCPU_CLKGATE_EN)) {
DPORT_SET_PERI_REG_MASK(DPORT_APPCPU_CTRL_B_REG, DPORT_APPCPU_CLKGATE_EN);
DPORT_CLEAR_PERI_REG_MASK(DPORT_APPCPU_CTRL_C_REG, DPORT_APPCPU_RUNSTALL);
DPORT_SET_PERI_REG_MASK(DPORT_APPCPU_CTRL_A_REG, DPORT_APPCPU_RESETTING);
DPORT_CLEAR_PERI_REG_MASK(DPORT_APPCPU_CTRL_A_REG, DPORT_APPCPU_RESETTING);
}
ets_set_appcpu_boot_addr((uint32_t)call_start_cpu1);
while (!app_cpu_started) {