[SDX35]SDX35硬件使用512MB内存，实际只初始化256MB问题分析及解决方案

SDX35

SDX35介绍

       SDX35设备是一种多模调制解调器芯片,支持 4G/5G sub-6 技术。它是一个4nm芯片专为实现卓越的性能和能效而设计。它包括一个 1.9 GHz Cortex-A7 应用处理器。

SDX35主要特性

■ 3GPP Rel. 17 with 5G Reduced Capability (RedCap)
support. Backward compatible with Rel. 15 and Rel. 16
■ 5G NR sub-6 (FR1) SA and 4G LTE Cat4
■ LP2/LP4X; LP2 533 MHz, LP4X 768 MHz
■ PCIe Gen 2 1L support
■ Primary and secondary I2S/PCM
■ Supports boot from NAND, PCIe, and USB_HS
■ 8 × 8 mm small package

openwrt

NAME="OpenWrt"
VERSION="22.03.5"
ID="openwrt"
ID_LIKE="openwrt"
PRETTY_NAME="OpenWrt 22.03.5"
VERSION_ID="22.03.5"
HOME_URL="https://openwrt.org/"
BUG_UR