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esp_hw_support: allow writing in IRAM when CONFIG_ESP_SYSTEM_PMP_IDRAM_SPLIT is not set for esp32C2

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when CONFIG_ESP_SYSTEM_PMP_IDRAM_SPLIT is not set, the PMP rule for esp32c2 shoud allow write access.
Fix esp_cpu_configure_region_protection() in cpu.c accordingly.
This commit is contained in:
Guillaume Souchere
2022-12-28 10:25:42 +01:00
parent a218139d25
commit b5bacffbd3
2 changed files with 8 additions and 0 deletions
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components/esp_hw_support/cpu.c
+7
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@@ -454,11 +454,13 @@ extern int _data_start;
#define CONDITIONAL_NONE 0x0
#define CONDITIONAL_RX PMP_R | PMP_X
#define CONDITIONAL_RW PMP_R | PMP_W
#define CONDITIONAL_RWX PMP_R | PMP_W | PMP_X
#else
// With L bit set
#define CONDITIONAL_NONE NONE
#define CONDITIONAL_RX RX
#define CONDITIONAL_RW RW
#define CONDITIONAL_RWX RWX
#endif
void esp_cpu_configure_region_protection(void)
@@ -525,7 +527,12 @@ void esp_cpu_configure_region_protection(void)
} else {
// 1. IRAM
PMP_ENTRY_SET(0, SOC_DIRAM_IRAM_LOW, CONDITIONAL_NONE);
#if CONFIG_ESP_SYSTEM_PMP_IDRAM_SPLIT
PMP_ENTRY_SET(1, IRAM_END, PMP_TOR | CONDITIONAL_RX);
#else
PMP_ENTRY_SET(1, IRAM_END, PMP_TOR | CONDITIONAL_RWX);
#endif
// 2. DRAM
PMP_ENTRY_SET(2, DRAM_START, CONDITIONAL_NONE);