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spi_flash: add support for ext flash

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This commit is contained in:
Cao Sen Miao
2021-06-21 19:43:51 +08:00
parent c0cf45b118
commit 992de2750e
10 changed files with 78 additions and 46 deletions
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23
components/hal/spi_flash_hal_common.inc
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@@ -65,7 +65,10 @@ esp_err_t spi_flash_hal_device_config(spi_flash_host_inst_t *host)
spi_flash_hal_disable_auto_resume_mode(host);
}
#endif //SOC_SPI_MEM_SUPPORT_AUTO_SUSPEND
#else
gpspi_flash_ll_set_hold_pol(dev, 1);
#endif //GPSPI_BUILD
return ESP_OK;
}
@@ -94,26 +97,6 @@ esp_err_t spi_flash_hal_configure_host_io_mode(
return ESP_ERR_NOT_SUPPORTED;
}
#if CONFIG_SPI_FLASH_ROM_IMPL && CONFIG_IDF_TARGET_ESP32S3
/*
* In S3 ROM, extra bits than 24-bit are used to indicate requirements of M7-M0:
* - 24: normal transactions
* - 28: 24bit DIO + conf bits (M7-M0 excluded from dummy_bitlen)
* - 32: 24bit QIO + conf bits (M7-M0 excluded from dummy_bitlen)
* Detect requirements for the conf bits by the address len, and modify the length to normal
* case (addr_bitlen = 24, dummy_bitlen includes M7-M0) as other chip versions use.
*/
int m70_bits = addr_bitlen - 24;
if (m70_bits) {
HAL_ASSERT(io_mode == SPI_FLASH_DIO || io_mode == SPI_FLASH_QIO);
conf_required = true;
addr_bitlen -= m70_bits;
int line_width = (io_mode == SPI_FLASH_DIO? 2: 4);
dummy_cyclelen_base += m70_bits / line_width;
}
#endif //CONFIG_SPI_FLASH_ROM_IMPL
#if SOC_SPI_PERIPH_SUPPORT_CONTROL_DUMMY_OUTPUT
// The CONTROL_DUMMY_OUTPUT feature is used to control M7-M0 bits.
spi_flash_ll_set_dummy_out(dev, (conf_required? 1: 0), 1);