thank you ivan! this helped in PICO-D4 and yes - figured it out now, many thanks.
have not sayed, that i did this with "future/psram-malloc" branch
there is in
bootloader support for D2WD but not PICO-D4
Code: Select all
static void enable_qio_mode(read_status_fn_t read_status_fn,
write_status_fn_t write_status_fn,
uint8_t status_qio_bit)
{
uint32_t status;
const uint32_t spiconfig = ets_efuse_get_spiconfig();
if (spiconfig != EFUSE_SPICONFIG_SPI_DEFAULTS && spiconfig != EFUSE_SPICONFIG_HSPI_DEFAULTS) {
// spiconfig specifies a custom efuse pin configuration. This config defines all pins -except- WP.
//
// For now, in this situation we only support Quad I/O mode for ESP32-D2WD where WP pin is known.
uint32_t chip_ver = REG_GET_FIELD(EFUSE_BLK0_RDATA3_REG, EFUSE_RD_CHIP_VER_RESERVE);
ESP_LOGE(TAG, "Note: chip_ver = %d", chip_ver);
uint32_t pkg_ver = chip_ver & 0x7;
ESP_LOGE(TAG, "Note: pkg_ver = %d", pkg_ver);
const uint32_t PKG_VER_ESP32_D2WD = 2; // TODO: use chip detection API once available
if (pkg_ver != PKG_VER_ESP32_D2WD) {
// ESP_LOGE(TAG, "Quad I/O is only supported for standard pin numbers or ESP32-D2WD. Falling back to Dual I/O.");
ESP_LOGE(TAG, "Quad I/O is only supported for standard pin numbers but will try on Pico-D4 it ;-)");
/* for a test with PICO-D4 */
// return;
}
}
esp_rom_spiflash_wait_idle(&g_rom_flashchip);
status = read_status_fn();
ESP_LOGD(TAG, "Initial flash chip status 0x%x", status);
if ((status & (1<<status_qio_bit)) == 0) {
execute_flash_command(CMD_WREN, 0, 0, 0);
write_status_fn(status | (1<<status_qio_bit));
esp_rom_spiflash_wait_idle(&g_rom_flashchip);
status = read_status_fn();
ESP_LOGD(TAG, "Updated flash chip status 0x%x", status);
if ((status & (1<<status_qio_bit)) == 0) {
ESP_LOGE(TAG, "Failed to set QIE bit, not enabling QIO mode");
return;
}
} else {
ESP_LOGD(TAG, "QIO mode already enabled in flash");
}
ESP_LOGD(TAG, "Enabling QIO mode...");
esp_rom_spiflash_read_mode_t mode;
#if CONFIG_FLASHMODE_QOUT
mode = ESP_ROM_SPIFLASH_QOUT_MODE;
#else
mode = ESP_ROM_SPIFLASH_QIO_MODE;
#endif
esp_rom_spiflash_config_readmode(mode);
esp_rom_spiflash_select_qio_pins(ESP32_D2WD_WP_GPIO, spiconfig);
}
- qio-test.png (36.82 KiB) Viewed 10668 times
for this fast test i comment out simply the "return", will add pkg_ver later,
cause must be 5 usually
btw:
hope the bonding has "High Speed SPI character" cause can disturb the lines on psram later
txs again!
best wishes
rudi
