spi_flash: re-enable the HPM mode on several XMC chips

This commit is contained in:
Cao Sen Miao 2022-06-23 15:19:56 +08:00
parent a56f68acd9
commit ec6a56ed0c
14 changed files with 121 additions and 33 deletions

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@ -42,6 +42,7 @@ extern "C" {
#define CMD_WRSR2 0x31 /* Not all SPI flash uses this command */
#define CMD_WRSR3 0x11 /* Not all SPI flash uses this command */
#define CMD_WREN 0x06
#define CMD_WRENVSR 0x50 /* Flash write enable for volatile SR bits */
#define CMD_WRDI 0x04
#define CMD_RDSR 0x05
#define CMD_RDSR2 0x35 /* Not all SPI flash uses this command */
@ -50,6 +51,8 @@ extern "C" {
#define CMD_RDSFDP 0x5A /* Read the SFDP of the flash */
#define CMD_WRAP 0x77 /* Set burst with wrap command */
#define CMD_RESUME 0x7A /* Resume command to clear flash suspend bit */
#define CMD_RESETEN 0x66
#define CMD_RESET 0x99
/* Provide a Flash API for bootloader_support code,
@ -172,6 +175,14 @@ uint32_t bootloader_flash_read_sfdp(uint32_t sfdp_addr, unsigned int miso_byte_n
*/
void bootloader_enable_wp(void);
/**
* @brief Once this function is called,
* any on-going internal operations will be terminated and the device will return to its default power-on
* state and lose all the current volatile settings, such as Volatile Status Register bits, Write Enable Latch
* (WEL) status, Program/Erase Suspend status, etc.
*/
void bootloader_spi_flash_reset(void);
#ifdef __cplusplus
}
#endif

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@ -603,6 +603,12 @@ uint32_t IRAM_ATTR bootloader_read_flash_id(void)
return id;
}
void bootloader_spi_flash_reset(void)
{
bootloader_execute_flash_command(CMD_RESETEN, 0, 0, 0);
bootloader_execute_flash_command(CMD_RESET, 0, 0, 0);
}
#if SOC_CACHE_SUPPORT_WRAP
esp_err_t bootloader_flash_wrap_set(spi_flash_wrap_mode_t mode)
{

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@ -210,6 +210,11 @@ static esp_err_t bootloader_init_spi_flash(void)
}
#endif
#if CONFIG_SPI_FLASH_HPM_ENABLE
// Reset flash, clear volatile bits DC[0:1]. Make it work under default mode to boot.
bootloader_spi_flash_reset();
#endif
bootloader_flash_unlock();
#if CONFIG_ESPTOOLPY_FLASHMODE_QIO || CONFIG_ESPTOOLPY_FLASHMODE_QOUT

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@ -74,6 +74,7 @@ menu "Serial flasher config"
default ESPTOOLPY_FLASHFREQ_48M if IDF_TARGET_ESP32H2
config ESPTOOLPY_FLASHFREQ_120M
bool "120 MHz"
select SPI_FLASH_HPM_ENABLE
depends on SOC_MEMSPI_SRC_FREQ_120M && ESPTOOLPY_FLASH_SAMPLE_MODE_STR
config ESPTOOLPY_FLASHFREQ_80M
bool "80 MHz"

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@ -20,7 +20,17 @@ set(ESPSECUREPY ${python} "${CMAKE_CURRENT_LIST_DIR}/esptool/espsecure.py")
set(ESPEFUSEPY ${python} "${CMAKE_CURRENT_LIST_DIR}/esptool/espefuse.py")
set(ESPMONITOR ${python} "${idf_path}/tools/idf_monitor.py")
set(ESPFLASHMODE ${CONFIG_ESPTOOLPY_FLASHMODE})
if(CONFIG_SPI_FLASH_HPM_ENABLE)
# When set flash frequency to 120M, must keep 1st bootloader work under ``DOUT`` mode
# because on some flash chips, 120M will modify the status register,
# which will make ROM won't work.
# This change intends to be for esptool only and the bootloader should keep use
# ``DOUT`` mode.
set(ESPFLASHMODE "dout")
message("Note: HPM is enabled for the flash, force the ROM bootloader into DOUT mode for stable boot on")
else()
set(ESPFLASHMODE ${CONFIG_ESPTOOLPY_FLASHMODE})
endif()
set(ESPFLASHFREQ ${CONFIG_ESPTOOLPY_FLASHFREQ})
set(ESPFLASHSIZE ${CONFIG_ESPTOOLPY_FLASHSIZE})

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@ -300,4 +300,11 @@ menu "SPI Flash driver"
application is not using flash encryption feature and is in need of some additional
memory from IRAM region (~1KB) then this config can be disabled.
config SPI_FLASH_HPM_ENABLE
bool
default n
help
This option is invisible, and will be selected automatically
when ``ESPTOOLPY_FLASHFREQ_120M`` is selected.
endmenu

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@ -13,6 +13,7 @@
#include "esp_log.h"
#include "soc/spi_mem_reg.h"
#include "spi_timing_config.h"
#include "esp_private/spi_flash_os.h"
#define OPI_PSRAM_SYNC_READ 0x0000
#define OPI_PSRAM_SYNC_WRITE 0x8080
@ -164,21 +165,24 @@ void spi_timing_config_flash_set_extra_dummy(uint8_t spi_num, uint8_t extra_dumm
if (ctrl_reg & MULTI_LINE_MASK_OCT_FLASH) {
abort();
}
// Only Quad Flash will run into this branch.
// So simply get the hpm dummy here by calling `spi_flash_hpm_get_dummy()`
const spi_flash_hpm_dummy_conf_t *dummy_cycle = spi_flash_hpm_get_dummy();
switch (ctrl_reg & MULTI_LINE_MASK_QUAD_FLASH) {
case SPI_FLASH_QIO_MODE:
dummy = SPI1_R_QIO_DUMMY_CYCLELEN;
dummy = dummy_cycle->qio_dummy - 1;
break;
case SPI_FLASH_QUAD_MODE:
dummy = SPI1_R_FAST_DUMMY_CYCLELEN;
dummy = dummy_cycle->qout_dummy - 1;
break;
case SPI_FLASH_DIO_MODE:
dummy = SPI1_R_DIO_DUMMY_CYCLELEN;
dummy = dummy_cycle->dio_dummy - 1;
break;
case SPI_FLASH_DUAL_MODE:
dummy = SPI1_R_FAST_DUMMY_CYCLELEN;
dummy = dummy_cycle->dout_dummy - 1;
break;
case SPI_FLASH_FAST_MODE:
dummy = SPI1_R_FAST_DUMMY_CYCLELEN;
dummy = dummy_cycle->fastrd_dummy - 1;
break;
case SPI_FLASH_SLOW_MODE:
dummy = 0;

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@ -381,6 +381,13 @@ esp_err_t esp_flash_init_default_chip(void)
return err;
}
#endif
#if CONFIG_SPI_FLASH_HPM_ENABLE
if (spi_flash_hpm_dummy_adjust()) {
default_chip.hpm_dummy_ena = 1;
}
#endif
return ESP_OK;
}

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@ -100,7 +100,8 @@ struct esp_flash_t {
uint32_t size; ///< Size of SPI flash in bytes. If 0, size will be detected during initialisation.
uint32_t chip_id; ///< Detected chip id.
uint32_t busy :1; ///< This flag is used to verify chip's status.
uint32_t reserved_flags :31; ///< reserved.
uint32_t hpm_dummy_ena :1; ///< This flag is used to verify whether flash works under HPM status.
uint32_t reserved_flags :30; ///< reserved.
};

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@ -165,9 +165,16 @@ esp_err_t spi_flash_enable_high_performance_mode(void);
* This can be used when one flash has several dummy configurations to enable the high performance mode.
* @note Don't forget to subtract one when assign to the register of mspi e.g. if the value you get is 4, (4-1=3) should be assigned to the register.
*
* @return Pointer to bootlaoder_flash_dummy_conf_t.
* @return Pointer to spi_flash_hpm_dummy_conf_t.
*/
const spi_flash_hpm_dummy_conf_t *spi_flash_get_dummy(void);
const spi_flash_hpm_dummy_conf_t *spi_flash_hpm_get_dummy(void);
/**
* @brief Used to judge whether flash works under HPM mode with dummy adjustment.
*
* @return true Yes, and work under HPM with adjusting dummy. Otherwise, false.
*/
bool spi_flash_hpm_dummy_adjust(void);
typedef enum {
FLASH_WRAP_MODE_8B = 0,

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@ -67,3 +67,5 @@
#define SPI_FLASH_OPISTR_DUMMY_BITLEN 20
#define SPI_FLASH_OPIDTR_ADDR_BITLEN 32
#define SPI_FLASH_OPIDTR_DUMMY_BITLEN 40
#define SPI_FLASH_QIO_HPM_DUMMY_BITLEN 10
#define SPI_FLASH_DIO_HPM_DUMMY_BITLEN 8

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@ -27,7 +27,8 @@ typedef struct {
} spi_flash_hpm_dummy_conf_t;
typedef enum {
SPI_FLASH_HPM_NEEDED, // Means that in the certain condition, flash needs to enter the high performance mode.
SPI_FLASH_HPM_CMD_NEEDED, // Means that in the certain condition, flash needs to enter the high performance mode by command.
SPI_FLASH_HPM_DUMMY_NEEDED, // Means that in the certain condition, flash needs to enter the high performance mode by adjusting dummy.
SPI_FLASH_HPM_UNNEEDED, // Means that flash doesn't need to enter the high performance mode.
SPI_FLASH_HPM_BEYOND_LIMIT, // Means that flash has no capability to meet that condition.
} spi_flash_requirement_t;

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@ -33,6 +33,20 @@ DRAM_ATTR const static flash_chip_dummy_t default_flash_chip_dummy = {
.slowrd_dummy_bitlen = SPI_FLASH_SLOWRD_DUMMY_BITLEN,
};
DRAM_ATTR const static flash_chip_dummy_t hpm_flash_chip_dummy = {
.dio_dummy_bitlen = SPI_FLASH_DIO_HPM_DUMMY_BITLEN,
.qio_dummy_bitlen = SPI_FLASH_QIO_HPM_DUMMY_BITLEN,
.qout_dummy_bitlen = SPI_FLASH_QOUT_DUMMY_BITLEN,
.dout_dummy_bitlen = SPI_FLASH_DOUT_DUMMY_BITLEN,
.fastrd_dummy_bitlen = SPI_FLASH_FASTRD_DUMMY_BITLEN,
.slowrd_dummy_bitlen = SPI_FLASH_SLOWRD_DUMMY_BITLEN,
};
DRAM_ATTR flash_chip_dummy_t *rom_flash_chip_dummy = (flash_chip_dummy_t *)&default_flash_chip_dummy;
DRAM_ATTR flash_chip_dummy_t *rom_flash_chip_dummy_hpm = (flash_chip_dummy_t *)&hpm_flash_chip_dummy;
// These are the pointer to HW flash encryption. Default using hardware encryption.
DRAM_ATTR static spi_flash_encryption_t esp_flash_encryption_default __attribute__((__unused__)) = {
.flash_encryption_enable = spi_flash_encryption_hal_enable,
@ -43,8 +57,6 @@ DRAM_ATTR static spi_flash_encryption_t esp_flash_encryption_default __attribute
.flash_encryption_check = spi_flash_encryption_hal_check,
};
DRAM_ATTR flash_chip_dummy_t *rom_flash_chip_dummy = (flash_chip_dummy_t *)&default_flash_chip_dummy;
#define SPI_FLASH_DEFAULT_IDLE_TIMEOUT_MS 200
#define SPI_FLASH_GENERIC_CHIP_ERASE_TIMEOUT_MS 4000
#define SPI_FLASH_GENERIC_SECTOR_ERASE_TIMEOUT_MS 600 //according to GD25Q127(125°) + 100ms
@ -467,35 +479,35 @@ esp_err_t spi_flash_chip_generic_config_host_io_mode(esp_flash_t *chip, uint32_t
case SPI_FLASH_QIO:
//for QIO mode, the 4 bit right after the address are used for continuous mode, should be set to 0 to avoid that.
addr_bitlen = SPI_FLASH_QIO_ADDR_BITLEN;
dummy_cyclelen_base = rom_flash_chip_dummy->qio_dummy_bitlen;
dummy_cyclelen_base = (chip->hpm_dummy_ena ? rom_flash_chip_dummy_hpm->qio_dummy_bitlen : rom_flash_chip_dummy->qio_dummy_bitlen);
read_command = (addr_32bit? CMD_FASTRD_QIO_4B: CMD_FASTRD_QIO);
conf_required = true;
break;
case SPI_FLASH_QOUT:
addr_bitlen = SPI_FLASH_QOUT_ADDR_BITLEN;
dummy_cyclelen_base = rom_flash_chip_dummy->qout_dummy_bitlen;
dummy_cyclelen_base = (chip->hpm_dummy_ena ? rom_flash_chip_dummy_hpm->qout_dummy_bitlen : rom_flash_chip_dummy->qout_dummy_bitlen);
read_command = (addr_32bit? CMD_FASTRD_QUAD_4B: CMD_FASTRD_QUAD);
break;
case SPI_FLASH_DIO:
//for DIO mode, the 4 bit right after the address are used for continuous mode, should be set to 0 to avoid that.
addr_bitlen = SPI_FLASH_DIO_ADDR_BITLEN;
dummy_cyclelen_base = rom_flash_chip_dummy->dio_dummy_bitlen;
dummy_cyclelen_base = (chip->hpm_dummy_ena ? rom_flash_chip_dummy_hpm->dio_dummy_bitlen : rom_flash_chip_dummy->dio_dummy_bitlen);
read_command = (addr_32bit? CMD_FASTRD_DIO_4B: CMD_FASTRD_DIO);
conf_required = true;
break;
case SPI_FLASH_DOUT:
addr_bitlen = SPI_FLASH_DOUT_ADDR_BITLEN;
dummy_cyclelen_base = rom_flash_chip_dummy->dout_dummy_bitlen;
dummy_cyclelen_base = (chip->hpm_dummy_ena ? rom_flash_chip_dummy_hpm->dout_dummy_bitlen : rom_flash_chip_dummy->dout_dummy_bitlen);
read_command = (addr_32bit? CMD_FASTRD_DUAL_4B: CMD_FASTRD_DUAL);
break;
case SPI_FLASH_FASTRD:
addr_bitlen = SPI_FLASH_FASTRD_ADDR_BITLEN;
dummy_cyclelen_base = rom_flash_chip_dummy->fastrd_dummy_bitlen;
dummy_cyclelen_base = (chip->hpm_dummy_ena ? rom_flash_chip_dummy_hpm->fastrd_dummy_bitlen : rom_flash_chip_dummy->fastrd_dummy_bitlen);
read_command = (addr_32bit? CMD_FASTRD_4B: CMD_FASTRD);
break;
case SPI_FLASH_SLOWRD:
addr_bitlen = SPI_FLASH_SLOWRD_ADDR_BITLEN;
dummy_cyclelen_base = rom_flash_chip_dummy->slowrd_dummy_bitlen;
dummy_cyclelen_base = (chip->hpm_dummy_ena ? rom_flash_chip_dummy_hpm->slowrd_dummy_bitlen : rom_flash_chip_dummy->slowrd_dummy_bitlen);
read_command = (addr_32bit? CMD_READ_4B: CMD_READ);
break;
default:

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@ -80,7 +80,7 @@ static spi_flash_requirement_t spi_flash_hpm_chip_hpm_requirement_check_with_cmd
case 0xC84016:
case 0xC84017:
if (freq_mhz > 80) {
chip_cap = SPI_FLASH_HPM_NEEDED;
chip_cap = SPI_FLASH_HPM_CMD_NEEDED;
}
break;
default:
@ -126,6 +126,10 @@ static esp_err_t spi_flash_hpm_probe_chip_with_dummy(uint32_t flash_id)
esp_err_t ret = ESP_OK;
switch (flash_id) {
/* The flash listed here should enter the HPM by adjusting dummy cycles */
// XMC chips.
case 0x204017:
case 0x204018:
break;
default:
ret = ESP_ERR_NOT_FOUND;
break;
@ -142,8 +146,9 @@ static spi_flash_requirement_t spi_flash_hpm_chip_hpm_requirement_check_with_dum
switch (flash_id) {
/* The flash listed here should enter the HPM with command 0xA3 */
case 0x204017:
case 0x204018:
if (freq_mhz >= 104) {
chip_cap = SPI_FLASH_HPM_NEEDED;
chip_cap = SPI_FLASH_HPM_DUMMY_NEEDED;
}
break;
default:
@ -164,7 +169,7 @@ static void spi_flash_turn_high_performance_reconfig_dummy(void)
{
uint8_t old_status_3 = bootloader_read_status_8b_rdsr3();
uint8_t new_status = (old_status_3 | 0x03);
bootloader_execute_flash_command(CMD_WREN, 0, 0, 0);
bootloader_execute_flash_command(CMD_WRENVSR, 0, 0, 0);
bootloader_write_status_8b_wrsr3(new_status);
esp_rom_spiflash_wait_idle(&g_rom_flashchip);
}
@ -182,11 +187,11 @@ static esp_err_t spi_flash_high_performance_check_dummy_sr(void)
static void spi_flash_hpm_get_dummy_xmc(spi_flash_hpm_dummy_conf_t *dummy_conf)
{
dummy_conf->dio_dummy = 8;
dummy_conf->dout_dummy = 8;
dummy_conf->qio_dummy = 10;
dummy_conf->qout_dummy = 8;
dummy_conf->fastrd_dummy = 8;
dummy_conf->dio_dummy = SPI_FLASH_DIO_HPM_DUMMY_BITLEN;
dummy_conf->dout_dummy = SPI_FLASH_DOUT_DUMMY_BITLEN;
dummy_conf->qio_dummy = SPI_FLASH_QIO_HPM_DUMMY_BITLEN;
dummy_conf->qout_dummy = SPI_FLASH_QOUT_DUMMY_BITLEN;
dummy_conf->fastrd_dummy = SPI_FLASH_FASTRD_DUMMY_BITLEN;
}
@ -198,11 +203,11 @@ static void spi_flash_hpm_get_dummy_xmc(spi_flash_hpm_dummy_conf_t *dummy_conf)
*/
void __attribute__((weak)) spi_flash_hpm_get_dummy_generic(spi_flash_hpm_dummy_conf_t *dummy_conf)
{
dummy_conf->dio_dummy = 4;
dummy_conf->dout_dummy = 8;
dummy_conf->qio_dummy = 6;
dummy_conf->qout_dummy = 8;
dummy_conf->fastrd_dummy = 8;
dummy_conf->dio_dummy = SPI_FLASH_DIO_DUMMY_BITLEN;
dummy_conf->dout_dummy = SPI_FLASH_DOUT_DUMMY_BITLEN;
dummy_conf->qio_dummy = SPI_FLASH_QIO_DUMMY_BITLEN;
dummy_conf->qout_dummy = SPI_FLASH_QOUT_DUMMY_BITLEN;
dummy_conf->fastrd_dummy = SPI_FLASH_FASTRD_DUMMY_BITLEN;
}
const spi_flash_hpm_info_t __attribute__((weak)) spi_flash_hpm_enable_list[] = {
@ -215,11 +220,13 @@ const spi_flash_hpm_info_t __attribute__((weak)) spi_flash_hpm_enable_list[] = {
static const spi_flash_hpm_info_t *chip_hpm = NULL;
static spi_flash_hpm_dummy_conf_t dummy_conf;
static bool hpm_dummy_changed = false;
esp_err_t spi_flash_enable_high_performance_mode(void)
{
uint32_t flash_chip_id = g_rom_flashchip.device_id;
uint32_t flash_freq = FLASH_FREQUENCY;
spi_flash_requirement_t hpm_requirement_check;
// voltage and temperature has not been implemented, just leave an interface here. Complete in the future.
int voltage = 0;
int temperature = 0;
@ -242,7 +249,8 @@ esp_err_t spi_flash_enable_high_performance_mode(void)
return ret;
}
if (chip_hpm->chip_hpm_requirement_check(flash_chip_id, flash_freq, voltage, temperature) == SPI_FLASH_HPM_NEEDED) {
hpm_requirement_check = chip_hpm->chip_hpm_requirement_check(flash_chip_id, flash_freq, voltage, temperature);
if ((hpm_requirement_check == SPI_FLASH_HPM_CMD_NEEDED) || (hpm_requirement_check == SPI_FLASH_HPM_DUMMY_NEEDED)) {
ESP_EARLY_LOGI(HPM_TAG, "Enabling high speed mode for chip %s", chip_hpm->manufacturer);
chip_hpm->flash_hpm_enable();
ESP_EARLY_LOGD(HPM_TAG, "Checking whether HPM has been executed");
@ -251,7 +259,8 @@ esp_err_t spi_flash_enable_high_performance_mode(void)
ESP_EARLY_LOGE(HPM_TAG, "Flash high performance mode hasn't been executed successfully");
return ESP_FAIL;
}
} else if (chip_hpm->chip_hpm_requirement_check(flash_chip_id, flash_freq, voltage, temperature) == SPI_FLASH_HPM_BEYOND_LIMIT) {
hpm_dummy_changed = (hpm_requirement_check == SPI_FLASH_HPM_DUMMY_NEEDED) ? true : false;
} else if (hpm_requirement_check == SPI_FLASH_HPM_BEYOND_LIMIT) {
ESP_EARLY_LOGE(HPM_TAG, "Flash does not have the ability to raise to that frequency");
return ESP_FAIL;
}
@ -263,3 +272,8 @@ const spi_flash_hpm_dummy_conf_t *spi_flash_hpm_get_dummy(void)
chip_hpm->flash_get_dummy(&dummy_conf);
return &dummy_conf;
}
bool spi_flash_hpm_dummy_adjust(void)
{
return hpm_dummy_changed;
}