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Merge branch 'fix/fix_psram_incr16' into 'master'

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fix(dma): add burst size check when dma access psram

See merge request espressif/esp-idf!40991
This commit is contained in:
Chen Ji Chang
2025-08-06 11:02:25 +08:00
parent 6ea0fa1a57 4957e09e5e
commit 6e0dd0581c
6 changed files with 11 additions and 0 deletions
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components/esp_hw_support/dma/gdma.c
+6
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@@ -351,6 +351,12 @@ esp_err_t gdma_config_transfer(gdma_channel_handle_t dma_chan, const gdma_transf
// burst size must be power of 2
ESP_RETURN_ON_FALSE((max_data_burst_size & (max_data_burst_size - 1)) == 0, ESP_ERR_INVALID_ARG,
TAG, "invalid max_data_burst_size: %"PRIu32, max_data_burst_size);
#if SOC_AHB_GDMA_SUPPORT_PSRAM || SOC_AXI_GDMA_SUPPORT_PSRAM
if (config->access_ext_mem) {
ESP_RETURN_ON_FALSE(max_data_burst_size <= GDMA_LL_MAX_BURST_SIZE_PSRAM, ESP_ERR_INVALID_ARG,
TAG, "max_data_burst_size must not exceed %d when accessing external memory", GDMA_LL_MAX_BURST_SIZE_PSRAM);
}
#endif
}
gdma_pair_t *pair = dma_chan->pair;
gdma_group_t *group = pair->group;