mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
257 lines
12 KiB
C
257 lines
12 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "esp_flash_partitions.h"
|
|
#include "esp32s3/rom/spi_flash.h"
|
|
#include "esp32s3/rom/opi_flash.h"
|
|
#include "mspi_timing_tuning_configs.h"
|
|
#include "esp_assert.h"
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
|
|
#define SPI_TIMING_CONFIG_NUM_DEFAULT 20 //This should be larger than the max available timing config num
|
|
#define SPI_TIMING_TEST_DATA_LEN 64
|
|
#define SPI_TIMING_PSRAM_TEST_DATA_ADDR 0
|
|
#define SPI_TIMING_FLASH_TEST_DATA_ADDR ESP_BOOTLOADER_OFFSET
|
|
/**
|
|
* @note BACKGOURND:
|
|
*
|
|
* The SPI FLASH module clock and SPI PSRAM module clock is divided from the SPI core clock, core clock is from system clock:
|
|
*
|
|
* PLL ----| |---- FLASH Module Clock
|
|
* XTAL ----|----> Core Clock ---->|
|
|
* RTC8M ----| |---- PSRAM Module Clock
|
|
*
|
|
*
|
|
* DDR stands for double data rate, MSPI samples at both posedge and negedge. So the real spped will be doubled.
|
|
* Speed from high to low: 120M DDR > 80M DDR > 120 SDR > 80M SDR > ...
|
|
*
|
|
* Module with speed lower than 120M SDR doesn't need to be tuned
|
|
*
|
|
* @note LIMITATION:
|
|
* How to determine the core clock on 728. There are 2 limitations.
|
|
*
|
|
* 1. MSPI FLASH and PSRAM share the core clock register. Therefore:
|
|
* SPI_TIMING_FLASH_EXPECTED_CORE_CLK_MHZ == SPI_TIMING_PSRAM_EXPECTED_CORE_CLK_MHZ
|
|
*
|
|
* 2. DDR mode requires the core clock divider (core_clk / div = module_clk) to be power of 2.
|
|
*/
|
|
//--------------------------------------FLASH Sampling Mode --------------------------------------//
|
|
#define SPI_TIMING_FLASH_DTR_MODE CONFIG_ESPTOOLPY_FLASH_SAMPLE_MODE_DTR
|
|
#define SPI_TIMING_FLASH_STR_MODE CONFIG_ESPTOOLPY_FLASH_SAMPLE_MODE_STR
|
|
//--------------------------------------FLASH Module Clock --------------------------------------//
|
|
#if CONFIG_ESPTOOLPY_FLASHFREQ_20M
|
|
#define SPI_TIMING_FLASH_MODULE_CLOCK 20
|
|
#elif CONFIG_ESPTOOLPY_FLASHFREQ_40M
|
|
#define SPI_TIMING_FLASH_MODULE_CLOCK 40
|
|
#elif CONFIG_ESPTOOLPY_FLASHFREQ_80M
|
|
#define SPI_TIMING_FLASH_MODULE_CLOCK 80
|
|
#else //CONFIG_ESPTOOLPY_FLASHFREQ_120M
|
|
#define SPI_TIMING_FLASH_MODULE_CLOCK 120
|
|
#endif
|
|
//------------------------------------FLASH Needs Tuning or not-------------------------------------//
|
|
#if SPI_TIMING_FLASH_DTR_MODE
|
|
#define SPI_TIMING_FLASH_NEEDS_TUNING (SPI_TIMING_FLASH_MODULE_CLOCK > 40)
|
|
#elif SPI_TIMING_FLASH_STR_MODE
|
|
#define SPI_TIMING_FLASH_NEEDS_TUNING (SPI_TIMING_FLASH_MODULE_CLOCK > 80)
|
|
#endif
|
|
|
|
//--------------------------------------PSRAM Sampling Mode --------------------------------------//
|
|
#define SPI_TIMING_PSRAM_DTR_MODE CONFIG_SPIRAM_MODE_OCT
|
|
#define SPI_TIMING_PSRAM_STR_MODE !CONFIG_SPIRAM_MODE_OCT
|
|
//--------------------------------------PSRAM Module Clock --------------------------------------//
|
|
#if CONFIG_SPIRAM
|
|
#if CONFIG_SPIRAM_SPEED_40M
|
|
#define SPI_TIMING_PSRAM_MODULE_CLOCK 40
|
|
#elif CONFIG_SPIRAM_SPEED_80M
|
|
#define SPI_TIMING_PSRAM_MODULE_CLOCK 80
|
|
#else //CONFIG_SPIRAM_SPEED_120M
|
|
#define SPI_TIMING_PSRAM_MODULE_CLOCK 120
|
|
#endif
|
|
#else //Disable PSRAM
|
|
#define SPI_TIMING_PSRAM_MODULE_CLOCK 10 //Define this to 10MHz, because we rely on `SPI_TIMING_PSRAM_MODULE_CLOCK` macro for calculation and check below, see `Determine the Core Clock` chapter
|
|
#endif
|
|
//------------------------------------PSRAM Needs Tuning or not-------------------------------------//
|
|
#if SPI_TIMING_PSRAM_DTR_MODE
|
|
#define SPI_TIMING_PSRAM_NEEDS_TUNING (SPI_TIMING_PSRAM_MODULE_CLOCK > 40)
|
|
#elif SPI_TIMING_PSRAM_STR_MODE
|
|
#define SPI_TIMING_PSRAM_NEEDS_TUNING (SPI_TIMING_PSRAM_MODULE_CLOCK > 80)
|
|
#endif
|
|
|
|
|
|
/**
|
|
* @note Define A feasible core clock below: SPI_TIMING_FLASH_EXPECTED_CORE_CLK_MHZ and SPI_TIMING_PSRAM_EXPECTED_CORE_CLK_MHZ
|
|
*/
|
|
/**
|
|
* Due to MSPI core clock is used by both MSPI Flash and PSRAM clock,
|
|
* define the STR/DTR mode here for selecting the core clock:
|
|
* @note If either Flash or PSRAM, or both of them are set to DTR mode, then we use DIV 2
|
|
*/
|
|
#if (SPI_TIMING_FLASH_DTR_MODE || SPI_TIMING_PSRAM_DTR_MODE)
|
|
#define SPI_TIMING_CORE_CLOCK_DIV 2
|
|
#else //#if (SPI_TIMING_FLASH_STR_MODE && (SPI_TIMING_PSRAM_STR_MODE))
|
|
#define SPI_TIMING_CORE_CLOCK_DIV 1
|
|
#endif
|
|
|
|
///////////////////////////////////// FLASH CORE CLOCK /////////////////////////////////////
|
|
//FLASH 80M DTR
|
|
#if SPI_TIMING_FLASH_DTR_MODE && CONFIG_ESPTOOLPY_FLASHFREQ_80M
|
|
#define SPI_TIMING_FLASH_EXPECTED_CORE_CLK_MHZ 160
|
|
#endif
|
|
|
|
//FLASH 120M DTR
|
|
#if SPI_TIMING_FLASH_DTR_MODE && CONFIG_ESPTOOLPY_FLASHFREQ_120M
|
|
#define SPI_TIMING_FLASH_EXPECTED_CORE_CLK_MHZ 240
|
|
#endif
|
|
|
|
//FLASH 120M STR
|
|
#if SPI_TIMING_FLASH_STR_MODE && CONFIG_ESPTOOLPY_FLASHFREQ_120M
|
|
#if (SPI_TIMING_CORE_CLOCK_DIV == 2)
|
|
#define SPI_TIMING_FLASH_EXPECTED_CORE_CLK_MHZ 240
|
|
#elif (SPI_TIMING_CORE_CLOCK_DIV == 1)
|
|
#define SPI_TIMING_FLASH_EXPECTED_CORE_CLK_MHZ 120
|
|
#endif
|
|
#endif //FLASH 120M STR
|
|
|
|
///////////////////////////////////// PSRAM CORE CLOCK /////////////////////////////////////
|
|
//PSRAM 80M DTR
|
|
#if SPI_TIMING_PSRAM_DTR_MODE && CONFIG_SPIRAM_SPEED_80M
|
|
#define SPI_TIMING_PSRAM_EXPECTED_CORE_CLK_MHZ 160
|
|
#endif
|
|
|
|
//PSRAM 120M STR
|
|
#if SPI_TIMING_PSRAM_STR_MODE && CONFIG_SPIRAM_SPEED_120M
|
|
#if (SPI_TIMING_CORE_CLOCK_DIV == 2)
|
|
#define SPI_TIMING_PSRAM_EXPECTED_CORE_CLK_MHZ 240
|
|
#elif (SPI_TIMING_CORE_CLOCK_DIV == 1)
|
|
#define SPI_TIMING_PSRAM_EXPECTED_CORE_CLK_MHZ 120
|
|
#endif
|
|
#endif //PSRAM 120M STR
|
|
|
|
|
|
//------------------------------------------Determine the Core Clock-----------------------------------------------//
|
|
/**
|
|
* @note
|
|
* Limitation 1:
|
|
* On 728, MSPI FLASH and PSRAM share the core clock register. Therefore,
|
|
* the expected CORE CLOCK frequencies should be the same.
|
|
*/
|
|
#if SPI_TIMING_FLASH_NEEDS_TUNING && SPI_TIMING_PSRAM_NEEDS_TUNING
|
|
ESP_STATIC_ASSERT(SPI_TIMING_FLASH_EXPECTED_CORE_CLK_MHZ == SPI_TIMING_PSRAM_EXPECTED_CORE_CLK_MHZ, "FLASH and PSRAM Mode configuration are not supported");
|
|
#define SPI_TIMING_CORE_CLOCK_MHZ SPI_TIMING_FLASH_EXPECTED_CORE_CLK_MHZ
|
|
|
|
//If only FLASH needs tuning, the core clock COULD be as FLASH expected
|
|
#elif SPI_TIMING_FLASH_NEEDS_TUNING && !SPI_TIMING_PSRAM_NEEDS_TUNING
|
|
ESP_STATIC_ASSERT(SPI_TIMING_FLASH_EXPECTED_CORE_CLK_MHZ % SPI_TIMING_PSRAM_MODULE_CLOCK == 0, "FLASH and PSRAM Mode configuration are not supported");
|
|
#define SPI_TIMING_CORE_CLOCK_MHZ SPI_TIMING_FLASH_EXPECTED_CORE_CLK_MHZ
|
|
|
|
//If only PSRAM needs tuning, the core clock COULD be as PSRAM expected
|
|
#elif !SPI_TIMING_FLASH_NEEDS_TUNING && SPI_TIMING_PSRAM_NEEDS_TUNING
|
|
ESP_STATIC_ASSERT(SPI_TIMING_PSRAM_EXPECTED_CORE_CLK_MHZ % SPI_TIMING_FLASH_MODULE_CLOCK == 0, "FLASH and PSRAM Mode configuration are not supported");
|
|
#define SPI_TIMING_CORE_CLOCK_MHZ SPI_TIMING_PSRAM_EXPECTED_CORE_CLK_MHZ
|
|
|
|
#else
|
|
#define SPI_TIMING_CORE_CLOCK_MHZ 80
|
|
#endif
|
|
|
|
/**
|
|
* @note
|
|
* Limitation 2: DDR mode requires the core clock divider (core_clk / div = module_clk) to be power of 2.
|
|
*/
|
|
#define CHECK_POWER_OF_2(n) ((((n) & ((~(n)) + 1))) == (n))
|
|
|
|
#if SPI_TIMING_FLASH_DTR_MODE
|
|
ESP_STATIC_ASSERT(CHECK_POWER_OF_2(SPI_TIMING_CORE_CLOCK_MHZ / SPI_TIMING_FLASH_MODULE_CLOCK), "FLASH and PSRAM Mode configuration are not supported");
|
|
#endif
|
|
#if SPI_TIMING_PSRAM_DTR_MODE
|
|
ESP_STATIC_ASSERT(CHECK_POWER_OF_2(SPI_TIMING_CORE_CLOCK_MHZ / SPI_TIMING_PSRAM_MODULE_CLOCK), "FLASH and PSRAM Mode configuration are not supported");
|
|
#endif
|
|
|
|
|
|
//------------------------------------------Helper Macros to get FLASH/PSRAM tuning configs-----------------------------------------------//
|
|
#define __GET_TUNING_CONFIG(type, core_clock, module_clock, mode) \
|
|
(spi_timing_config_t) { .tuning_config_table = MSPI_TIMING_##type##_CONFIG_TABLE_CORE_CLK_##core_clock##M_MODULE_CLK_##module_clock##M_##mode, \
|
|
.available_config_num = MSPI_TIMING_##type##_CONFIG_NUM_CORE_CLK_##core_clock##M_MODULE_CLK_##module_clock##M_##mode, \
|
|
.default_config_id = MSPI_TIMING_##type##_DEFAULT_CONFIG_ID_CORE_CLK_##core_clock##M_MODULE_CLK_##module_clock##M_##mode }
|
|
|
|
#define _GET_TUNING_CONFIG(type, core_clock, module_clock, mode) __GET_TUNING_CONFIG(type, core_clock, module_clock, mode)
|
|
|
|
#define SPI_TIMING_FLASH_GET_TUNING_CONFIG(core_clock_mhz, module_clock_mhz, mode) _GET_TUNING_CONFIG(FLASH, core_clock_mhz, module_clock_mhz, mode)
|
|
#define SPI_TIMING_PSRAM_GET_TUNING_CONFIG(core_clock_mhz, module_clock_mhz, mode) _GET_TUNING_CONFIG(PSRAM, core_clock_mhz, module_clock_mhz, mode)
|
|
|
|
|
|
/**
|
|
* SPI timing tuning registers. The macro `SPI_TIMING_FLASH_CONFIG_TABLE` below is the corresponding register value table.
|
|
* Upper layer rely on these 3 registers to tune the timing.
|
|
*/
|
|
typedef struct {
|
|
uint8_t spi_din_mode; /*!< input signal delay mode*/
|
|
uint8_t spi_din_num; /*!< input signal delay number */
|
|
uint8_t extra_dummy_len; /*!< extra dummy length*/
|
|
} spi_timing_tuning_param_t;
|
|
|
|
typedef struct {
|
|
spi_timing_tuning_param_t tuning_config_table[SPI_TIMING_CONFIG_NUM_DEFAULT]; //available timing tuning configs
|
|
uint32_t available_config_num;
|
|
uint32_t default_config_id; //If tuning fails, we use this one as default
|
|
} spi_timing_config_t;
|
|
|
|
/**
|
|
* The SPI FLASH module clock and SPI PSRAM module clock is divided from the SPI core clock, core clock is from system clock:
|
|
*
|
|
* PLL ----| |---- FLASH Module Clock
|
|
* XTAL ----|----> Core Clock ---->|
|
|
* RTC8M ----| |---- PSRAM Module Clock
|
|
*
|
|
*/
|
|
typedef enum {
|
|
SPI_TIMING_CONFIG_CORE_CLOCK_80M,
|
|
SPI_TIMING_CONFIG_CORE_CLOCK_120M,
|
|
SPI_TIMING_CONFIG_CORE_CLOCK_160M,
|
|
SPI_TIMING_CONFIG_CORE_CLOCK_240M
|
|
} spi_timing_config_core_clock_t;
|
|
|
|
|
|
spi_timing_config_core_clock_t spi_timing_config_get_core_clock(void);
|
|
void spi_timing_config_set_core_clock(uint8_t spi_num, spi_timing_config_core_clock_t core_clock);
|
|
|
|
void spi_timing_config_set_flash_clock(uint8_t spi_num, uint32_t freqdiv);
|
|
void spi_timing_config_flash_set_din_mode_num(uint8_t spi_num, uint8_t din_mode, uint8_t din_num);
|
|
void spi_timing_config_flash_set_extra_dummy(uint8_t spi_num, uint8_t extra_dummy);
|
|
void spi_timing_config_flash_read_data(uint8_t spi_num, uint8_t *buf, uint32_t addr, uint32_t len);
|
|
|
|
void spi_timing_config_set_psram_clock(uint8_t spi_num, uint32_t freqdiv);
|
|
void spi_timing_config_psram_set_din_mode_num(uint8_t spi_num, uint8_t din_mode, uint8_t din_num);
|
|
void spi_timing_config_psram_set_extra_dummy(uint8_t spi_num, uint8_t extra_dummy);
|
|
void spi_timing_config_psram_write_data(uint8_t spi_num, uint8_t *buf, uint32_t addr, uint32_t len);
|
|
void spi_timing_config_psram_read_data(uint8_t spi_num,uint8_t *buf, uint32_t addr, uint32_t len);
|
|
|
|
/*-------------------------------------------------------------------------------------------------
|
|
* SPI1 Timing Tuning APIs
|
|
* These APIs are only used in `spi_flash_timing_tuning.c/sweep_for_success_sample_points()` for
|
|
* configuring SPI1 timing tuning related registers to find best tuning parameter
|
|
*-------------------------------------------------------------------------------------------------*/
|
|
void spi_timing_config_flash_tune_din_num_mode(uint8_t din_mode, uint8_t din_num);
|
|
void spi_timing_config_flash_tune_dummy(uint8_t extra_dummy);
|
|
void spi_timing_config_psram_tune_din_num_mode(uint8_t din_mode, uint8_t din_num);
|
|
void spi_timing_config_psram_tune_dummy(uint8_t extra_dummy);
|
|
|
|
/**
|
|
* SPI1 register info get APIs. These APIs inform `spi_flash_timing_tuning.c` (driver layer) of the SPI1 flash settings.
|
|
* In this way, other components (e.g.: esp_flash driver) can get the info from it (`spi_flash_timing_tuning.c`).
|
|
*/
|
|
void spi_timing_config_get_cs_timing(uint8_t *setup_time, uint32_t *hold_time);
|
|
uint32_t spi_timing_config_get_flash_clock_reg(void);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|