55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
/*
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* Copyright (c) 2024 Espressif Systems (Shanghai) Co., Ltd.
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <string.h>
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#include <zephyr/kernel.h>
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#include <rom/ets_sys.h>
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#include <esp_psram.h>
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#include <esp_private/esp_psram_extram.h>
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#include <zephyr/multi_heap/shared_multi_heap.h>
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#define PSRAM_ADDR (DT_REG_ADDR(DT_NODELABEL(psram0)))
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extern int _spiram_heap_start;
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extern int _ext_ram_bss_start;
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extern int _ext_ram_bss_end;
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struct shared_multi_heap_region smh_psram = {
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.addr = (uintptr_t)&_spiram_heap_start,
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.size = CONFIG_ESP_SPIRAM_SIZE,
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.attr = SMH_REG_ATTR_EXTERNAL,
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};
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int esp_psram_smh_init(void)
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{
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shared_multi_heap_pool_init();
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smh_psram.size = CONFIG_ESP_SPIRAM_SIZE - ((int)&_spiram_heap_start - PSRAM_ADDR);
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return shared_multi_heap_add(&smh_psram, NULL);
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}
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void esp_init_psram(void)
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{
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if (esp_psram_init()) {
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ets_printf("Failed to Initialize external RAM, aborting.\n");
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return;
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}
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if (esp_psram_get_size() < CONFIG_ESP_SPIRAM_SIZE) {
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ets_printf("External RAM size is less than configured.\n");
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}
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if (IS_ENABLED(CONFIG_ESP_SPIRAM_MEMTEST)) {
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if (esp_psram_is_initialized()) {
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if (!esp_psram_extram_test()) {
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ets_printf("External RAM failed memory test!");
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return;
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}
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}
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}
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memset(&_ext_ram_bss_start, 0,
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(&_ext_ram_bss_end - &_ext_ram_bss_start) * sizeof(_ext_ram_bss_start));
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}
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