Merge branch 'feature/support_new_psram_v4.4' into 'release/v4.4'

psram: add ESP32-D0WD-R2-V3 support(backport v4.4)

See merge request espressif/esp-idf!16705

components/esp_hw_support/include/esp_chip_info.h

@@ -33,6 +33,7 @@ typedef enum {
 #define CHIP_FEATURE_BLE            BIT(4)      //!< Chip has Bluetooth LE
 #define CHIP_FEATURE_BT             BIT(5)      //!< Chip has Bluetooth Classic
 #define CHIP_FEATURE_IEEE802154     BIT(6)      //!< Chip has IEEE 802.15.4
+#define CHIP_FEATURE_EMB_PSRAM      BIT(7)      //!< Chip has embedded psram
 
 /**
  * @brief The structure represents information about the chip

components/esp_hw_support/port/esp32/chip_info.c

@@ -34,6 +34,9 @@ void esp_chip_info(esp_chip_info_t* out_info)
         package == EFUSE_RD_CHIP_VER_PKG_ESP32PICOV302) {
         out_info->features |= CHIP_FEATURE_EMB_FLASH;
     }
+    if(package == EFUSE_RD_CHIP_VER_PKG_ESP32D0WDR2V3) {
+        out_info->features |= CHIP_FEATURE_EMB_PSRAM;
+    }
 }
 
 #if CONFIG_ESP32_ECO3_CACHE_LOCK_FIX

components/esp_hw_support/port/esp32/spiram_psram.c

@@ -111,6 +111,11 @@ typedef enum {
 #define D2WD_PSRAM_CLK_IO          CONFIG_D2WD_PSRAM_CLK_IO  // Default value is 9
 #define D2WD_PSRAM_CS_IO           CONFIG_D2WD_PSRAM_CS_IO   // Default value is 10
 
+// There is no reason to change the pin of an embedded psram.
+// So define the number of pin directly, instead of configurable.
+#define D0WDR2_V3_PSRAM_CLK_IO    6
+#define D0WDR2_V3_PSRAM_CS_IO     16
+
 // For ESP32-PICO chip, the psram share clock with flash. The flash clock pin is fixed, which is IO6.
 #define PICO_PSRAM_CLK_IO          6
 #define PICO_PSRAM_CS_IO           CONFIG_PICO_PSRAM_CS_IO   // Default value is 10
@@ -842,6 +847,16 @@ esp_err_t IRAM_ATTR psram_enable(psram_cache_mode_t mode, psram_vaddr_mode_t vad
         ESP_EARLY_LOGI(TAG, "This chip is ESP32-D0WD");
         psram_io.psram_clk_io = D0WD_PSRAM_CLK_IO;
         psram_io.psram_cs_io  = D0WD_PSRAM_CS_IO;
+    } else if (pkg_ver == EFUSE_RD_CHIP_VER_PKG_ESP32D0WDR2V3){
+        ESP_EARLY_LOGI(TAG, "This chip is ESP32-D0WDR2-V3");
+        rtc_vddsdio_config_t cfg = rtc_vddsdio_get_config();
+        if (cfg.tieh != RTC_VDDSDIO_TIEH_3_3V) {
+            ESP_EARLY_LOGE(TAG, "VDDSDIO is not 3.3V");
+            return ESP_FAIL;
+        }
+        s_clk_mode = PSRAM_CLK_MODE_NORM;
+        psram_io.psram_clk_io = D0WDR2_V3_PSRAM_CLK_IO;
+        psram_io.psram_cs_io  = D0WDR2_V3_PSRAM_CS_IO;
     } else {
         ESP_EARLY_LOGE(TAG, "Not a valid or known package id: %d", pkg_ver);
         abort();

components/soc/esp32/include/soc/efuse_reg.h

@@ -1,16 +1,8 @@
-// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
+/*
-//
+ * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
-// Licensed under the Apache License, Version 2.0 (the "License");
+ *
-// you may not use this file except in compliance with the License.
+ * SPDX-License-Identifier: Apache-2.0
-// You may obtain a copy of the License at
+ */
-
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
 #ifndef _SOC_EFUSE_REG_H_
 #define _SOC_EFUSE_REG_H_
 
@@ -116,6 +108,7 @@
 #define EFUSE_RD_CHIP_VER_PKG_ESP32U4WDH   4
 #define EFUSE_RD_CHIP_VER_PKG_ESP32PICOD4  5
 #define EFUSE_RD_CHIP_VER_PKG_ESP32PICOV302  6
+#define EFUSE_RD_CHIP_VER_PKG_ESP32D0WDR2V3  7
 /* EFUSE_RD_SPI_PAD_CONFIG_HD : RO ;bitpos:[8:4] ;default: 5'b0 ; */
 /*description: read for SPI_pad_config_hd*/
 #define EFUSE_RD_SPI_PAD_CONFIG_HD  0x0000001F