PolarFire® SoC QSPI 代码编写 测试

1、 首先 将 QSPI 基地址 改为  SC-QSPI 基地址  0x37020100

　　

 

 

原因如下：

PolarFire FPGA and PolarFire SoC FPGA Programming User Guide

MSS connects to the system controller QSPI using SCB bus. The QSPI controller allows MSS to access system controller SPI flash memory. Use the MSS QSPI driver in Normal mode to access an external SPI flash memory using QSPI base address as 0x37020100 (this address is part of IOSCB data). The following figure shows the interface between MSS and system controller QSPI controller.

 2、 QSPI 初始化

MSS_QSPI_init();
MSS_QSPI_enable();

g_qspi_config.clk_div = MSS_QSPI_CLK_DIV_30; //Tested OK MICRON_FAST_READ command at MSS_QSPI_CLK_DIV_12
g_qspi_config.sample = MSS_QSPI_SAMPLE_POSAGE_SPICLK;
g_qspi_config.spi_mode = MSS_QSPI_MODE3;
g_qspi_config.xip = MSS_QSPI_DISABLE;
g_qspi_config.io_format = MSS_QSPI_NORMAL;
MSS_QSPI_configure(&g_qspi_config);

 

3、使用 命令 读取   MT25QL01GBBB8ESF-0SIT  ID