PolarFire® SoC softconsole mpfs-uart-mac-freertos_lwip 链接文件分析

1、硬件环境： PolarFire SoC Icicle Kit | Microchip Technology 开发板

5-core RISC-V CPU (1× E51, 4× U54)
Low-power PolarFire FPGA fabric
4× 12.7 Gbps SERDES, PCIe Gen2, 2× GbE
2 GB LPDDR4, 8 GB eMMC, SD, SPI flash
RPi header, mikroBUS™, UART/SPI/I²C/CAN
2 MB L2 cache or 1.875 MB LIM with ECC
128 KB eNVM
RV64IMAC, 625 MHz, 16 KB L1 iCache or 8 KB ITIM, and 8 KB DTIM
RV64GC, 625 MHz, 32 KB L1 iCache or 28 KB ITIM. 32 KB dCache
PolarFire SoC MSS Technical Reference Manual 可以看第十章节 “MSS Memory Map”

2、软件环境： Libero 2025.1 和 SoftConsole v2021.1

1、mpfs-ddr-loaded-by-boot-loader.ld

SECTIONS 存放地址：ddr_cached_32bit→0x80000000；

该链接脚本生成的固件，需要一个bootloader 加载此文件到 DDR 中运行;

MEMORY
{
    envm (rx) : ORIGIN  = 0x20220100, LENGTH = 128k - 0x100
    dtim (rwx) : ORIGIN  = 0x01000000, LENGTH = 7k       
    /* This 1K of DTIM is used to run code when switching the envm clock */
    switch_code_dtim (rx) : ORIGIN = 0x01001c00, LENGTH = 1k 
    e51_itim (rwx)     : ORIGIN = 0x01800000, LENGTH = 28k
    u54_1_itim (rwx)   : ORIGIN = 0x01808000, LENGTH = 28k
    u54_2_itim (rwx)   : ORIGIN = 0x01810000, LENGTH = 28k
    u54_3_itim (rwx)   : ORIGIN = 0x01818000, LENGTH = 28k
    u54_4_itim (rwx)   : ORIGIN = 0x01820000, LENGTH = 28k
    l2lim (rwx)        : ORIGIN = 0x08000000, LENGTH = 256k
    scratchpad(rwx)    : ORIGIN = 0x0A000000, LENGTH = 256k
    /* DDR sections example */
    ddr_cached_32bit (rwx) : ORIGIN  = 0x80000000, LENGTH = 768M
    ddr_non_cached_32bit (rwx) : ORIGIN  = 0xC0000000, LENGTH = 256M
    ddr_wcb_32bit (rwx) : ORIGIN  = 0xD0000000, LENGTH = 256M
    ddr_cached_38bit (rwx) : ORIGIN  = 0x1000000000, LENGTH = 1024M
    ddr_non_cached_38bit (rwx) : ORIGIN  = 0x1400000000, LENGTH = 0k
    ddr_wcb_38bit (rwx) : ORIGIN  = 0x1800000000, LENGTH  = 0k
}

2、mpfs-envm.ld

SECTIONS 存放地址：__envm_start → 0x20220100；

必须链接启动模式 1 或 3 程序才能存储和执行 PolarFire SoC 的 eNVM。该程序可以链接到 eNVM 中的任何位置地址范围 0x20220100-0x2023FFFF （128KiB - 256 字节）。因为 eNVM 页面（256 字节）用于存储启动模式 1 标头或启动模式 3 SBIC（安全启动映像证书）程序无法链接 eNVM 页面 0 = 地址 0x20220000。链接器用于链接程序的脚本应定义 eNVM，

该链接脚本生成的固件，存放在 eNVM 中;

MEMORY
{
    /* In this example, our reset vector is set to point to the */
    /* start at page 1 of the envm */
    envm (rx) : ORIGIN  = 0x20220100, LENGTH = 128k - 0x100
    dtim (rwx) : ORIGIN  = 0x01000000, LENGTH = 7k       
    /* This 1K of DTIM is used to run code when switching the envm clock */
    switch_code_dtim (rx) : ORIGIN = 0x01001c00, LENGTH = 1k 
    e51_itim (rwx)     : ORIGIN = 0x01800000, LENGTH = 28k
    u54_1_itim (rwx)   : ORIGIN = 0x01808000, LENGTH = 28k
    u54_2_itim (rwx)   : ORIGIN = 0x01810000, LENGTH = 28k
    u54_3_itim (rwx)   : ORIGIN = 0x01818000, LENGTH = 28k
    u54_4_itim (rwx)   : ORIGIN = 0x01820000, LENGTH = 28k
    l2lim (rwx)        : ORIGIN = 0x08000000, LENGTH = 256k
    scratchpad(rwx)    : ORIGIN = 0x0A000000, LENGTH = 256k
    /* DDR sections example */
    ddr_cached_32bit (rwx) : ORIGIN  = 0x80000000, LENGTH = 768M
    ddr_non_cached_32bit (rwx) : ORIGIN  = 0xC0000000, LENGTH = 256M
    ddr_wcb_32bit (rwx) : ORIGIN  = 0xD0000000, LENGTH = 256M
    ddr_cached_38bit (rwx) : ORIGIN  = 0x1000000000, LENGTH = 1024M
    ddr_non_cached_38bit (rwx) : ORIGIN  = 0x1400000000, LENGTH = 0k
    ddr_wcb_38bit (rwx) : ORIGIN  = 0x1800000000, LENGTH  = 0k
}

3、mpfs-envm-lma-scratchpad-vma.ld

从 eNVM 加载，但拷贝到最快的内存（Scratchpad）中执行；

MEMORY
{
    envm (rx) : ORIGIN  = 0x20220100, LENGTH = 128k - 0x100
    dtim (rwx) : ORIGIN  = 0x01000000, LENGTH = 7k       
    /* This 1K of DTIM is used to run code when switching the envm clock */
    switch_code_dtim (rx) : ORIGIN = 0x01001c00, LENGTH = 1k 
    e51_itim (rwx)     : ORIGIN = 0x01800000, LENGTH = 28k
    u54_1_itim (rwx)   : ORIGIN = 0x01808000, LENGTH = 28k
    u54_2_itim (rwx)   : ORIGIN = 0x01810000, LENGTH = 28k
    u54_3_itim (rwx)   : ORIGIN = 0x01818000, LENGTH = 28k
    u54_4_itim (rwx)   : ORIGIN = 0x01820000, LENGTH = 28k
    l2lim (rwx)        : ORIGIN = 0x08000000, LENGTH = 256k
    scratchpad(rwx)    : ORIGIN = 0x0A000000, LENGTH = 256k
    /* DDR sections example */
    ddr_cached_32bit (rwx) : ORIGIN  = 0x80000000, LENGTH = 768M
    ddr_non_cached_32bit (rwx) : ORIGIN  = 0xC0000000, LENGTH = 256M
    ddr_wcb_32bit (rwx) : ORIGIN  = 0xD0000000, LENGTH = 256M
    ddr_cached_38bit (rwx) : ORIGIN  = 0x1000000000, LENGTH = 1024M
    ddr_non_cached_38bit (rwx) : ORIGIN  = 0x1400000000, LENGTH = 0k
    ddr_wcb_38bit (rwx) : ORIGIN  = 0x1800000000, LENGTH  = 0k
}

4、mpfs-lim.ld

代码存放在 lim 中运行，大小为 256KB；

MEMORY
{
    envm (rx) : ORIGIN  = 0x20220100, LENGTH = 128k - 0x100
    dtim (rwx) : ORIGIN = 0x01000000, LENGTH = 7k
    /* This 1K of DTIM is used to run code when switching the envm clock */
    switch_code_dtim (rx) : ORIGIN = 0x01001c00, LENGTH = 1k 
    e51_itim (rwx) : ORIGIN = 0x01800000, LENGTH = 28k
    u54_1_itim (rwx) : ORIGIN = 0x01808000, LENGTH = 28k
    u54_2_itim (rwx) : ORIGIN = 0x01810000, LENGTH = 28k
    u54_3_itim (rwx) : ORIGIN = 0x01818000, LENGTH = 28k
    u54_4_itim (rwx) : ORIGIN = 0x01820000, LENGTH = 28k
    l2lim (rwx)      : ORIGIN = 0x08000000, LENGTH = 256k
    scratchpad(rwx)  : ORIGIN = 0x0A000000, LENGTH = 256k
    /* DDR sections example */
    ddr_cached_32bit (rwx) : ORIGIN  = 0x80000000, LENGTH = 768M
    ddr_non_cached_32bit (rwx) : ORIGIN  = 0xC0000000, LENGTH = 256M
    ddr_wcb_32bit (rwx) : ORIGIN  = 0xD0000000, LENGTH = 256M
    ddr_cached_38bit (rwx) : ORIGIN  = 0x1000000000, LENGTH = 1024M
    ddr_non_cached_38bit (rwx) : ORIGIN  = 0x1400000000, LENGTH = 0k
    ddr_wcb_38bit (rwx) : ORIGIN  = 0x1800000000, LENGTH  = 0k
}

5、mpfs-lim-lma-scratchpad-vma.ld

存放在 lim 中，复制到 scratchpad 运行；

MEMORY
{
    envm (rx) : ORIGIN  = 0x20220100, LENGTH = 128k - 0x100
    dtim (rwx) : ORIGIN  = 0x01000000, LENGTH = 7k       
    /* This 1K of DTIM is used to run code when switching the envm clock */
    switch_code_dtim (rx) : ORIGIN = 0x01001c00, LENGTH = 1k 
    e51_itim (rwx)     : ORIGIN = 0x01800000, LENGTH = 28k
    u54_1_itim (rwx)   : ORIGIN = 0x01808000, LENGTH = 28k
    u54_2_itim (rwx)   : ORIGIN = 0x01810000, LENGTH = 28k
    u54_3_itim (rwx)   : ORIGIN = 0x01818000, LENGTH = 28k
    u54_4_itim (rwx)   : ORIGIN = 0x01820000, LENGTH = 28k
    l2lim (rwx)        : ORIGIN = 0x08000000, LENGTH = 256k
    scratchpad(rwx)    : ORIGIN = 0x0A000000, LENGTH = 256k
    /* DDR sections example */
    ddr_cached_32bit (rwx) : ORIGIN  = 0x80000000, LENGTH = 768M
    ddr_non_cached_32bit (rwx) : ORIGIN  = 0xC0000000, LENGTH = 256M
    ddr_wcb_32bit (rwx) : ORIGIN  = 0xD0000000, LENGTH = 256M
    ddr_cached_38bit (rwx) : ORIGIN  = 0x1000000000, LENGTH = 1024M
    ddr_non_cached_38bit (rwx) : ORIGIN  = 0x1400000000, LENGTH = 0k
    ddr_wcb_38bit (rwx) : ORIGIN  = 0x1800000000, LENGTH  = 0k
}

posted on 2025-09-01 17:02 所长阅读(29) 评论(0) 收藏举报

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