spi_flash: Allow clock frequency up to 64M, and make it default on ESP32H2

This commit is contained in:
Cao Sen Miao 2023-02-22 17:31:48 +08:00
parent 9c1897028a
commit bc655a6890
13 changed files with 135 additions and 19 deletions

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@ -120,19 +120,19 @@ static void print_flash_info(const esp_image_header_t *bootloader_hdr)
const char *str;
switch (bootloader_hdr->spi_speed) {
case ESP_IMAGE_SPI_SPEED_DIV_2:
str = "40MHz";
str = "32MHz";
break;
case ESP_IMAGE_SPI_SPEED_DIV_3:
str = "26.7MHz";
str = "21.3MHz";
break;
case ESP_IMAGE_SPI_SPEED_DIV_4:
str = "20MHz";
str = "16MHz";
break;
case ESP_IMAGE_SPI_SPEED_DIV_1:
str = "80MHz";
str = "64MHz";
break;
default:
str = "20MHz";
str = "16MHz";
break;
}
ESP_LOGI(TAG, "SPI Speed : %s", str);

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@ -18,6 +18,7 @@
#include "esp_rom_sys.h"
#include "hal/clk_tree_ll.h"
#include "hal/regi2c_ctrl_ll.h"
#include "hal/spimem_flash_ll.h"
#include "soc/io_mux_reg.h"
#include "soc/lp_aon_reg.h"
#include "soc/lp_clkrst_reg.h"
@ -153,6 +154,7 @@ static void rtc_clk_bbpll_disable(void)
static void rtc_clk_bbpll_enable(void)
{
clk_ll_bbpll_enable();
spimem_flash_ll_set_clock_source(MSPI_CLK_SRC_PLL_F64M); // Switch clock to PLL at same time.
}
static void rtc_clk_bbpll_configure(rtc_xtal_freq_t xtal_freq, int pll_freq)

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@ -59,6 +59,7 @@
#include "esp_private/sleep_modem.h"
#include "esp_private/esp_clk.h"
#include "esp_private/esp_task_wdt.h"
#include "esp_private/spi_flash_os.h"
#ifdef CONFIG_IDF_TARGET_ESP32
#include "esp32/rom/cache.h"
@ -460,6 +461,11 @@ static uint32_t IRAM_ATTR esp_sleep_start(uint32_t pd_flags, esp_sleep_mode_t mo
pd_flags &= ~RTC_SLEEP_PD_INT_8M;
}
// Set mspi clock to a low-power one.
#if SOC_MEMSPI_CLOCK_IS_INDEPENDENT
spi_flash_set_clock_src(MSPI_CLK_SRC_ROM_DEFAULT);
#endif
// Save current frequency and switch to XTAL
rtc_cpu_freq_config_t cpu_freq_config;
rtc_clk_cpu_freq_get_config(&cpu_freq_config);
@ -626,6 +632,11 @@ static uint32_t IRAM_ATTR esp_sleep_start(uint32_t pd_flags, esp_sleep_mode_t mo
rtc_clk_cpu_freq_set_config(&cpu_freq_config);
}
// Set mspi clock to ROM default one.
#if SOC_MEMSPI_CLOCK_IS_INDEPENDENT
spi_flash_set_clock_src(MSPI_CLK_SRC_DEFAULT);
#endif
if (!deep_sleep) {
s_config.ccount_ticks_record = esp_cpu_get_cycle_count();
misc_modules_wake_prepare();

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@ -7,9 +7,11 @@
#include <stdint.h>
#include "esp_cpu.h"
#include "soc/soc.h"
#include "soc/soc_caps.h"
#include "esp_private/rtc_clk.h"
#include "esp_private/panic_internal.h"
#include "esp_private/system_internal.h"
#include "esp_private/spi_flash_os.h"
#include "esp_heap_caps.h"
#include "esp_rom_uart.h"
#include "esp_rom_sys.h"
@ -31,6 +33,10 @@ void IRAM_ATTR esp_restart_noos_dig(void)
esp_rom_uart_tx_wait_idle(CONFIG_ESP_CONSOLE_UART_NUM);
}
#if SOC_MEMSPI_CLOCK_IS_INDEPENDENT
spi_flash_set_clock_src(MSPI_CLK_SRC_ROM_DEFAULT);
#endif
// switch to XTAL (otherwise we will keep running from the PLL)
rtc_clk_cpu_set_to_default_config();

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@ -21,7 +21,9 @@
#include "soc/rtc_periph.h"
#include "soc/uart_reg.h"
#include "hal/wdt_hal.h"
#include "hal/spimem_flash_ll.h"
#include "esp_private/cache_err_int.h"
#include "esp_private/spi_flash_os.h"
#include "esp32h2/rom/cache.h"
#include "esp32h2/rom/rtc.h"
@ -98,6 +100,9 @@ void IRAM_ATTR esp_restart_noos(void)
CLEAR_PERI_REG_MASK(PCR_GDMA_CONF_REG, PCR_GDMA_RST_EN);
CLEAR_PERI_REG_MASK(PCR_MODEM_CONF_REG, PCR_MODEM_RST_EN);
// If we set mspi clock frequency to PLL, but ROM does not have such clock source option. So reset the clock to XTAL when software restart.
spi_flash_set_clock_src(MSPI_CLK_SRC_ROM_DEFAULT);
// Set CPU back to XTAL source, same as hard reset, but keep BBPLL on so that USB Serial JTAG can log at 1st stage bootloader.
#if !CONFIG_IDF_ENV_FPGA
rtc_clk_cpu_set_to_default_config();

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@ -99,6 +99,9 @@ menu "Serial flasher config"
config ESPTOOLPY_FLASHFREQ_80M
bool "80 MHz"
depends on SOC_MEMSPI_SRC_FREQ_80M_SUPPORTED
config ESPTOOLPY_FLASHFREQ_64M
bool "64 MHz"
depends on SOC_MEMSPI_SRC_FREQ_64M_SUPPORTED
config ESPTOOLPY_FLASHFREQ_60M
bool "60 MHz"
depends on SOC_MEMSPI_SRC_FREQ_60M_SUPPORTED
@ -108,6 +111,9 @@ menu "Serial flasher config"
config ESPTOOLPY_FLASHFREQ_40M
bool "40 MHz"
depends on SOC_MEMSPI_SRC_FREQ_40M_SUPPORTED
config ESPTOOLPY_FLASHFREQ_32M
bool "32 MHz"
depends on SOC_MEMSPI_SRC_FREQ_32M_SUPPORTED
config ESPTOOLPY_FLASHFREQ_30M
bool "30 MHz"
depends on SOC_MEMSPI_SRC_FREQ_30M_SUPPORTED
@ -120,6 +126,9 @@ menu "Serial flasher config"
config ESPTOOLPY_FLASHFREQ_20M
bool "20 MHz"
depends on SOC_MEMSPI_SRC_FREQ_20M_SUPPORTED
config ESPTOOLPY_FLASHFREQ_16M
bool "16 MHz"
depends on SOC_MEMSPI_SRC_FREQ_16M_SUPPORTED
config ESPTOOLPY_FLASHFREQ_15M
bool "15 MHz"
depends on SOC_MEMSPI_SRC_FREQ_15M_SUPPORTED
@ -138,12 +147,15 @@ menu "Serial flasher config"
default '80m' if ESPTOOLPY_FLASHFREQ_120M
default '80m' if ESPTOOLPY_FLASHFREQ_80M
default '60m' if ESPTOOLPY_FLASHFREQ_60M
default '48m' if ESPTOOLPY_FLASHFREQ_64M # For 0xf in esptool
default '48m' if ESPTOOLPY_FLASHFREQ_48M
default '24m' if ESPTOOLPY_FLASHFREQ_32M # For 0x0 in esptool
default '30m' if ESPTOOLPY_FLASHFREQ_30M
default '24m' if ESPTOOLPY_FLASHFREQ_24M
default '40m' if ESPTOOLPY_FLASHFREQ_40M
default '26m' if ESPTOOLPY_FLASHFREQ_26M
default '20m' if ESPTOOLPY_FLASHFREQ_20M
default '12m' if ESPTOOLPY_FLASHFREQ_16M # For 0x2 in esptool
default '20m' # if no clock can match in bin headers, go with minimal.

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@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@ -25,6 +25,8 @@
#include "hal/spi_types.h"
#include "hal/spi_flash_types.h"
#include "soc/pcr_struct.h"
#include "soc/clk_tree_defs.h"
#include "hal/misc.h"
#ifdef __cplusplus
extern "C" {
@ -399,6 +401,27 @@ static inline void spimem_flash_ll_set_read_mode(spi_mem_dev_t *dev, esp_flash_i
dev->ctrl = ctrl;
}
__attribute__((always_inline))
static inline void spimem_flash_ll_set_clock_source(soc_periph_mspi_clk_src_t clk_src)
{
switch (clk_src) {
case MSPI_CLK_SRC_XTAL:
PCR.mspi_conf.mspi_clk_sel = 0;
break;
case MSPI_CLK_SRC_RC_FAST:
PCR.mspi_conf.mspi_clk_sel = 1;
break;
case MSPI_CLK_SRC_PLL_F64M:
PCR.mspi_conf.mspi_clk_sel = 2;
break;
case MSPI_CLK_SRC_PLL_F48M:
PCR.mspi_conf.mspi_clk_sel = 3;
break;
default:
HAL_ASSERT(false);
}
}
/**
* Set clock frequency to work at.
*
@ -550,27 +573,24 @@ static inline void spimem_flash_ll_set_cs_setup(spi_mem_dev_t *dev, uint32_t cs_
*/
static inline uint8_t spimem_flash_ll_get_source_freq_mhz(void)
{
// ESP32H2-TODO
#if 0
// TODO: Default is PLL480M, this is hard-coded.
// In the future, we can get the CPU clock source by calling interface.
uint8_t clock_val = 0;
switch (SPIMEM0.core_clk_sel.spi01_clk_sel) {
switch (PCR.mspi_conf.mspi_clk_sel) {
case 0:
clock_val = 80;
clock_val = 32;
break;
case 1:
clock_val = 120;
clock_val = 8;
break;
case 2:
clock_val = 160;
clock_val = 64;
break;
case 3:
clock_val = 32;
break;
default:
abort();
HAL_ASSERT(false);
}
return clock_val;
#endif
return 80;
}
/**

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@ -819,7 +819,19 @@ config SOC_SPI_MEM_SUPPORT_WRAP
bool
default y
config SOC_MEMSPI_SRC_FREQ_48M_SUPPORTED
config SOC_MEMSPI_SRC_FREQ_64M_SUPPORTED
bool
default y
config SOC_MEMSPI_SRC_FREQ_32M_SUPPORTED
bool
default y
config SOC_MEMSPI_SRC_FREQ_16M_SUPPORTED
bool
default y
config SOC_MEMSPI_CLOCK_IS_INDEPENDENT
bool
default y

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@ -431,6 +431,23 @@ typedef enum {
PARLIO_CLK_SRC_DEFAULT = SOC_MOD_CLK_PLL_F96M, /*!< Select PLL_F96M as the default clock choice */
} soc_periph_parlio_clk_src_t;
//////////////////////////////////////////////////MSPI///////////////////////////////////////////////////////////////////
/**
* @brief Array initializer for all supported clock sources of MSPI digital controller
*/
#define SOC_MSPI_CLKS {SOC_MOD_CLK_XTAL, SOC_MOD_CLK_RC_FAST, SOC_MOD_CLK_PLL_F64M, SOC_MOD_CLK_PLL_F48M}
/**
* @brief MSPI digital controller clock source
*/
typedef enum {
MSPI_CLK_SRC_XTAL = SOC_MOD_CLK_XTAL, /*!< Select XTAL as the source clock */
MSPI_CLK_SRC_RC_FAST = SOC_MOD_CLK_RC_FAST, /*!< Select RC_FAST as the source clock */
MSPI_CLK_SRC_PLL_F64M = SOC_MOD_CLK_PLL_F64M, /*!< Select PLL_F64M as the source clock */
MSPI_CLK_SRC_PLL_F48M = SOC_MOD_CLK_PLL_F48M, /*!< Select PLL_F48M as the source clock */
MSPI_CLK_SRC_DEFAULT = SOC_MOD_CLK_PLL_F64M, /*!< Select PLL_F64M as the default clock choice */
MSPI_CLK_SRC_ROM_DEFAULT = SOC_MOD_CLK_XTAL, /*!< Select XTAL as ROM default clock source */
} soc_periph_mspi_clk_src_t;
#ifdef __cplusplus
}
#endif

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@ -362,7 +362,10 @@
#define SOC_SPI_MEM_SUPPORT_CHECK_SUS (1)
#define SOC_SPI_MEM_SUPPORT_WRAP (1)
#define SOC_MEMSPI_SRC_FREQ_48M_SUPPORTED 1
#define SOC_MEMSPI_SRC_FREQ_64M_SUPPORTED 1
#define SOC_MEMSPI_SRC_FREQ_32M_SUPPORTED 1
#define SOC_MEMSPI_SRC_FREQ_16M_SUPPORTED 1
#define SOC_MEMSPI_CLOCK_IS_INDEPENDENT 1
/*-------------------------- SYSTIMER CAPS ----------------------------------*/
#define SOC_SYSTIMER_COUNTER_NUM 2 // Number of counter units

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@ -36,12 +36,16 @@ esp_flash_t *esp_flash_default_chip = NULL;
#define DEFAULT_FLASH_SPEED 120
#elif defined CONFIG_ESPTOOLPY_FLASHFREQ_80M
#define DEFAULT_FLASH_SPEED 80
#elif defined CONFIG_ESPTOOLPY_FLASHFREQ_64M
#define DEFAULT_FLASH_SPEED 64
#elif defined CONFIG_ESPTOOLPY_FLASHFREQ_60M
#define DEFAULT_FLASH_SPEED 60
#elif defined CONFIG_ESPTOOLPY_FLASHFREQ_48M
#define DEFAULT_FLASH_SPEED 48
#elif defined CONFIG_ESPTOOLPY_FLASHFREQ_40M
#define DEFAULT_FLASH_SPEED 40
#elif defined CONFIG_ESPTOOLPY_FLASHFREQ_32M
#define DEFAULT_FLASH_SPEED 32
#elif defined CONFIG_ESPTOOLPY_FLASHFREQ_30M
#define DEFAULT_FLASH_SPEED 30
#elif defined CONFIG_ESPTOOLPY_FLASHFREQ_26M

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@ -56,6 +56,9 @@
#if CONFIG_SPIRAM
#include "esp_private/esp_psram_io.h"
#endif
#if SOC_MEMSPI_CLOCK_IS_INDEPENDENT
#include "hal/cache_hal.h"
#endif
/* bytes erased by SPIEraseBlock() ROM function */
#define BLOCK_ERASE_SIZE 65536
@ -328,3 +331,13 @@ uint8_t esp_mspi_get_io(esp_mspi_io_t io)
return s_mspi_io_num_default[io];
#endif // SOC_SPI_MEM_SUPPORT_CONFIG_GPIO_BY_EFUSE
}
#if SOC_MEMSPI_CLOCK_IS_INDEPENDENT
IRAM_ATTR void spi_flash_set_clock_src(soc_periph_mspi_clk_src_t clk_src)
{
cache_hal_freeze(CACHE_TYPE_INSTRUCTION);
spimem_flash_ll_set_clock_source(clk_src);
cache_hal_unfreeze(CACHE_TYPE_INSTRUCTION);
}
#endif // SOC_MEMSPI_CLOCK_IS_INDEPENDENT

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@ -18,6 +18,7 @@
#include "hal/spi_flash_hal.h"
#include "spi_flash_override.h"
#include "soc/soc_caps.h"
#include "soc/clk_tree_defs.h"
#ifdef __cplusplus
extern "C" {
@ -244,6 +245,16 @@ extern const spi_flash_guard_funcs_t g_flash_guard_no_os_ops;
*/
void spi_flash_rom_impl_init(void);
#if SOC_MEMSPI_CLOCK_IS_INDEPENDENT
/**
* @brief This functions is used to change spi flash clock source between PLL and others, which is used after system wake up from a low power mode or
* enter low-power mode like sleep.
* @param clk_src mspi(flash) clock source.
*
* @note Only called in startup. User should not call this function.
*/
void spi_flash_set_clock_src(soc_periph_mspi_clk_src_t clk_src);
#endif
#ifdef __cplusplus
}