# Enable QSPI for the SPI-NOR interface

Enable QSPI for SPI-NOR in the pre-DDR XBL to use storage.

SPI-NOR doesn’t require any TrustZone configuration. Configure the QSPI
instance in the pre-DDR XBL settings loader for the target serial
engine.

## Configure the QSPI instance

1. Open the QSPI settings loader source file:

QcomPkg/SocPkg/Glymur/Settings/QUP/qup_settings_loader.c
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2. Configure the required QSPI instance for the target serial engine.

    The following example configures `TOP_QUP_3_SE_0` for QSPI.

se_dev_cfg TOP_QUP_3_SE_0 = {
            .se_base_addr = (uint8 *)(QUPV3_3_CORE_BASE_ADDRESS + QUPV3_SE_BASE_OFFSET),
            .se_clock = (uint8 **) (se_clocks_str_3 + 0),
            .current_se_freq = 19200,
            .se_id = 0,
            .protocols_supported = (I2C_SUPPORTED | UART_SUPPORTED | SPI_SUPPORTED),
            .protocol_in_use = SE_PROTOCOL_QSPI,
            .iface_data = IFACE_DATA((GSI_MODE),0,0,0),
            .io = {GPIO_DATA(128,3,0),GPIO_DATA(129,3,0),GPIO_DATA(127,3,0),GPIO_DATA(132,3,0),GPIO_DATA(130,3,0),GPIO_DATA(131,3,0)},
            .flags = (USES_DDR_BUFFER | USES_INTERNAL_DDR_MEM | ENABLE_FATAL_ON_TIMEOUT | POLLED_MODE),
            .polled_mode = 1,
            .dt_available = FALSE,
        };
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## Related

- [Enable a peripheral interface in the aDSP](https://docs.qualcomm.com/doc/80-A0399-8/topic/enable-peripheral-interface-adsp.html)
- [Enable a peripheral interface in the SoCCP](https://docs.qualcomm.com/doc/80-A0399-8/topic/enable-peripheral-interface-soccp.html)
- [Enable a peripheral interface in the OOB subsystem](https://docs.qualcomm.com/doc/80-A0399-8/topic/enable-peripheral-interface-oob.html)

Last Published: Sep 17, 2026

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