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feat(esp_hw_support): manage clock tree hw/sw coherence during CPU reset lazily

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wuzhenghui
2025-06-04 21:16:47 +08:00
parent 652fe76dca
commit ff39ac40a1
1 changed files with 5 additions and 4 deletions
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9
components/esp_hw_support/port/esp32c5/esp_clk_tree.c
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@@ -71,7 +71,7 @@ uint32_t *freq_value)
} }
#define ENUM2ARRAY(clk_src) (clk_src - SOC_MOD_CLK_PLL_F12M) #define ENUM2ARRAY(clk_src) (clk_src - SOC_MOD_CLK_PLL_F12M)
static __NOINIT_ATTR int16_t s_pll_src_cg_ref_cnt[9] = { 0 }; static int16_t s_pll_src_cg_ref_cnt[9] = { 0 };
static bool esp_clk_tree_initialized = false; static bool esp_clk_tree_initialized = false;
void esp_clk_tree_initialize(void) void esp_clk_tree_initialize(void)
@@ -82,8 +82,6 @@ void esp_clk_tree_initialize(void)
|| (rst_reason == RESET_REASON_CPU0_JTAG) || (rst_reason == RESET_REASON_CPU0_LOCKUP)) { || (rst_reason == RESET_REASON_CPU0_JTAG) || (rst_reason == RESET_REASON_CPU0_LOCKUP)) {
esp_clk_tree_initialized = true; esp_clk_tree_initialized = true;
return; return;
} else {
bzero(s_pll_src_cg_ref_cnt, sizeof(s_pll_src_cg_ref_cnt));
} }
soc_cpu_clk_src_t current_cpu_clk_src = clk_ll_cpu_get_src(); soc_cpu_clk_src_t current_cpu_clk_src = clk_ll_cpu_get_src();
@@ -146,7 +144,10 @@ esp_err_t esp_clk_tree_enable_src(soc_module_clk_t clk_src, bool enable)
if (!enable) { if (!enable) {
s_pll_src_cg_ref_cnt[ENUM2ARRAY(clk_src)]--; s_pll_src_cg_ref_cnt[ENUM2ARRAY(clk_src)]--;
} }
assert(s_pll_src_cg_ref_cnt[ENUM2ARRAY(clk_src)] >= 0); if (s_pll_src_cg_ref_cnt[ENUM2ARRAY(clk_src)] < 0) {
ESP_EARLY_LOGW(TAG, "soc_module_clk_t %d disabled multiple times!!", clk_src);
s_pll_src_cg_ref_cnt[ENUM2ARRAY(clk_src)] = 0;
}
} }
return ESP_OK; return ESP_OK;
} }