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< / div > < div class = "- topic/body concept/conbody body conbody" > < div class = "- topic/p p" data-ofbid = "d308466e23__20250121171814" > SPI NOR 要工作既需要 SoC 端 SPI 模块的驱动能力，也需要对 SPI NOR 模块的正确配置，本章阐述如何进行 SPI NOR 器件的移植工作，以
< code class = "+ topic/ph pr-d/codeph ph codeph" > CFX< / code > 的 < code class = "+ topic/ph pr-d/codeph ph codeph" > GM25Q128A< / code > 和 < code class = "+ topic/ph pr-d/codeph ph codeph" > FudanMicro< / code > 的
< code class = "+ topic/ph pr-d/codeph ph codeph" > FM25Q128< / code > 为例。< ul class = "- topic/ul ul" id = "u_boot_transplant__ul_ehm_5vy_c1c" data-ofbid = "u_boot_transplant__ul_ehm_5vy_c1c" > < li class = "- topic/li li" data-ofbid = "d308466e38__20250121171814" >
< p class = "- topic/p p" data-ofbid = "d308466e40__20250121171814" > U-Boot 中移植一款 SPI NOR， ， < / p >
< / li > < li class = "- topic/li li" data-ofbid = "d308466e43__20250121171814" >
< p class = "- topic/p p" data-ofbid = "d308466e45__20250121171814" > 其他的参数都可以默认设置，
SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)< / p >
< / li > < / ul > < / div > < div class = "- topic/p p" data-ofbid = "d308466e48__20250121171814" > U-Boot 中 对不同厂家的 SPI NOR 器件的管理集成度很高， 主要代码在
< span class = "+ topic/ph sw-d/filepath ph filepath" > source/uboot-2021.10/drivers/mtd/spi/spi-nor-ids.c< / span >
中，添加一款新厂家的新器件需要经过如下步骤：< ol class = "- topic/ol ol" id = "u_boot_transplant__ol_hf4_j5y_c1c" data-ofbid = "u_boot_transplant__ol_hf4_j5y_c1c" > < li class = "- topic/li li" data-ofbid = "d308466e54__20250121171814" > 添加厂家的宏定义。< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "u_boot_transplant__codeblock_zp3_k5y_c1c" data-ofbid = "u_boot_transplant__codeblock_zp3_k5y_c1c" > config SPI_FLASH_FMSH
bool < span class = "hl-string" > "FudanMicro SPI flash support"< / span >
help
Add support < strong class = "hl-keyword" > for< / strong > various FMSH (Shanghai Fudan Microelectronics Group Company)
SPI flash chips (FM25xxx).
config SPI_FLASH_CFX
bool < span class = "hl-string" > "CFX SPI flash support"< / span >
help
Add support < strong class = "hl-keyword" > for< / strong > various CFX (Zhuhai ChuangFeiXin-Technology)
SPI flash chips (GM25xxx).< / pre > < / li > < li class = "- topic/li li" data-ofbid = "d308466e58__20250121171814" > 在 < span class = "+ topic/ph sw-d/filepath ph filepath" > spi-nor-ids.c< / span > 的 < span class = "+ topic/ph sw-d/filepath ph filepath" > spi_nor_ids< / span > 结构中添加
FMHS 和 CFX
的相关器件的支持。< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "u_boot_transplant__codeblock_ulj_l5y_c1c" data-ofbid = "u_boot_transplant__codeblock_ulj_l5y_c1c" > #ifdef CONFIG_SPI_FLASH_FMSH
< em class = "hl-comment" > /* Shanghai Fudan Microelectronics Group Company */< / em >
{ INFO(< span class = "hl-string" > "FM25Q128"< / span > , < span class = "hl-number" > 0xa14017< / span > , < span class = "hl-number" > 0< / span > , < span class = "hl-number" > 64< / span > * < span class = "hl-number" > 1024< / span > , < span class = "hl-number" > 256< / span > , SECT_< span class = "hl-number" > 4< / span > K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
{ INFO(< span class = "hl-string" > "FM25Q64"< / span > , < span class = "hl-number" > 0xa14018< / span > , < span class = "hl-number" > 0< / span > , < span class = "hl-number" > 64< / span > * < span class = "hl-number" > 1024< / span > , < span class = "hl-number" > 128< / span > , SECT_< span class = "hl-number" > 4< / span > K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
#endif
#ifdef CONFIG_SPI_FLASH_CFX
< em class = "hl-comment" > /* Zhuhai ChuangFeiXin Technology */< / em >
{ INFO(< span class = "hl-string" > "GM25Q128A"< / span > , < span class = "hl-number" > 0x1c4018< / span > , < span class = "hl-number" > 0< / span > , < span class = "hl-number" > 64< / span > * < span class = "hl-number" > 1024< / span > , < span class = "hl-number" > 256< / span > , SECT_< span class = "hl-number" > 4< / span > K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
#endif< / pre > < / li > < li class = "- topic/li li" data-ofbid = "d308466e68__20250121171814" > 设置 < strong class = "+ topic/ph hi-d/b ph b" > flash_info< / strong > < div class = "- topic/div div" id = "u_boot_transplant__div_flash_info_config" >
< div class = "- topic/p p" data-ofbid = "d308466e74__20250121171814" > flash_info 数据结构主要用来描述某一颗 SPI NOR 的参数，通过 INFO
宏来设置，其详细结构为：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "u_boot_transplant__codeblock_y1s_45y_c1c" data-ofbid = "u_boot_transplant__codeblock_y1s_45y_c1c" > < strong class = "hl-keyword" > struct< / strong > flash_info {
< strong class = "hl-keyword" > char< / strong > *name; < em class = "hl-comment" > //器件名称，一般用器件编号替代< / em >
u8 id[SPI_NOR_MAX_ID_LEN]; < em class = "hl-comment" > //JEDEC 授权的器件 ID< / em >
u8 id_len; < em class = "hl-comment" > //ID 长度，填 0， < / em >
< strong class = "hl-keyword" > unsigned< / strong > sector_size; < em class = "hl-comment" > //sector size， < / em >
u16 n_sectors; < em class = "hl-comment" > //sector 数目，通过 flash size 和 sector size 计算出来< / em >
u16 page_size; < em class = "hl-comment" > //页大小， INFO 宏固定为 256< / em >
u16 addr_width; < em class = "hl-comment" > //< / em > < span class = "+ topic/ph sw-d/filepath ph filepath" > board.dts< / span > 中配置
u32 flags; < em class = "hl-comment" > //功能标识< / em > < / pre > < / div >
< ul class = "- topic/ul ul" id = "u_boot_transplant__ul_g2b_t5y_c1c" data-ofbid = "u_boot_transplant__ul_g2b_t5y_c1c" > < li class = "- topic/li li" data-ofbid = "d308466e83__20250121171814" > < strong class = "+ topic/ph hi-d/b ph b" > JEDEC ID< / strong > ：和 SPI NAND 不同， SPI NOR 的 ID 包含 Manufacture ID 和
Device ID 等多项内容，一般为 24 位，描述方式为< div class = "table-container" > < table class = "- topic/table table frame-all" id = "u_boot_transplant__table_l5h_55y_c1c" data-ofbid = "u_boot_transplant__table_l5h_55y_c1c" data-cols = "4" > < caption > < / caption > < colgroup > < col style = "width:25%" / > < col style = "width:25%" / > < col style = "width:25%" / > < col style = "width:25%" / > < / colgroup > < thead class = "- topic/thead thead" > < tr class = "- topic/row" > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "u_boot_transplant__table_l5h_55y_c1c__entry__1" > 阈值< / th > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "u_boot_transplant__table_l5h_55y_c1c__entry__2" > 名称< / th > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "u_boot_transplant__table_l5h_55y_c1c__entry__3" > 示例< / th > < th class = "- topic/entry entry colsep-0 rowsep-1" id = "u_boot_transplant__table_l5h_55y_c1c__entry__4" > 标记方式< / th > < / tr > < / thead > < tbody class = "- topic/tbody tbody" > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "u_boot_transplant__table_l5h_55y_c1c__entry__1" > MID7 - IDF0< / td > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "u_boot_transplant__table_l5h_55y_c1c__entry__2" > Maunfacture ID< / td > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "u_boot_transplant__table_l5h_55y_c1c__entry__3" > 0xa1< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "u_boot_transplant__table_l5h_55y_c1c__entry__4" > JEDEC 分配< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "u_boot_transplant__table_l5h_55y_c1c__entry__1" > D15 - D8< / td > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "u_boot_transplant__table_l5h_55y_c1c__entry__2" > Memory Type< / td > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "u_boot_transplant__table_l5h_55y_c1c__entry__3" > 0x40< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "u_boot_transplant__table_l5h_55y_c1c__entry__4" > 0x9F 命令< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "u_boot_transplant__table_l5h_55y_c1c__entry__1" > D7 - D0< / td > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "u_boot_transplant__table_l5h_55y_c1c__entry__2" > Memory Desity< / td > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "u_boot_transplant__table_l5h_55y_c1c__entry__3" > 0x17< / td > < td class = "- topic/entry entry colsep-0 rowsep-0" headers = "u_boot_transplant__table_l5h_55y_c1c__entry__4" > 0x9F 命令< / td > < / tr > < / tbody > < / table > < / div > < p class = "- topic/p p" data-ofbid = "d308466e131__20250121171814" > 不同厂家在数据手册中描述方法不一样，但现代的 SPI NOR 的 MID 一般通过
“Maunfacture/MID” 等字段标注， （ ）
因此在数据手册中通过搜索 9F 一般能构造出 JEDEC ID， < / p > < ul class = "- topic/ul ul" id = "u_boot_transplant__ul_m5h_55y_c1c" data-ofbid = "u_boot_transplant__ul_m5h_55y_c1c" > < li class = "- topic/li li" data-ofbid = "d308466e134__20250121171814" > 0xC84018< div class = "- topic/p p" data-ofbid = "d308466e136__20250121171814" >
< br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "u_boot_transplant__image_n5h_55y_c1c" src = "../../../images/memory/spinor_device_id1.png" width = "480" alt = "id-1" / > < / div > < br / >
< / div > < / li > < li class = "- topic/li li" data-ofbid = "d308466e142__20250121171814" > 0xC22018< div class = "- topic/p p" data-ofbid = "d308466e144__20250121171814" >
< br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "u_boot_transplant__image_p5h_55y_c1c" src = "../../../images/memory/spinor_device_id2.png" width = "480" alt = "id-2" / > < / div > < br / >
< / div > < / li > < li class = "- topic/li li" data-ofbid = "d308466e150__20250121171814" > 0xA14017< div class = "- topic/p p" data-ofbid = "d308466e152__20250121171814" >
< br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "u_boot_transplant__image_r5h_55y_c1c" src = "../../../images/memory/spinor_device_id3.png" width = "480" alt = "id-3" / > < / div > < br / >
< / div > < / li > < / ul > < / li > < li class = "- topic/li li" data-ofbid = "d308466e158__20250121171814" > < strong class = "+ topic/ph hi-d/b ph b" > sector_size< / strong > ：
Block 的接口，但在名称上还保留了 Sector 的名称，而驱动中则已经完全切换到 Block 的逻辑< p class = "- topic/p p" data-ofbid = "d308466e162__20250121171814" > Sector Size
主要定义的是擦除参数，一般的器件提供三种擦除操作< / p > < div class = "table-container" > < table class = "- topic/table table frame-all" id = "u_boot_transplant__table_exs_dvy_c1c" data-ofbid = "u_boot_transplant__table_exs_dvy_c1c" data-cols = "4" > < caption > < / caption > < colgroup > < col style = "width:26.814814814814813%" / > < col style = "width:16.296296296296298%" / > < col style = "width:14.814814814814813%" / > < col style = "width:42.07407407407407%" / > < / colgroup > < thead class = "- topic/thead thead" > < tr class = "- topic/row" > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "u_boot_transplant__table_exs_dvy_c1c__entry__1" > 操作方式< / th > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "u_boot_transplant__table_exs_dvy_c1c__entry__2" > 命令< / th > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "u_boot_transplant__table_exs_dvy_c1c__entry__3" > 擦除大小< / th > < th class = "- topic/entry entry colsep-0 rowsep-1" id = "u_boot_transplant__table_exs_dvy_c1c__entry__4" > 备注< / th > < / tr > < / thead > < tbody class = "- topic/tbody tbody" > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "u_boot_transplant__table_exs_dvy_c1c__entry__1" > Sector Erase( SE)< / td > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "u_boot_transplant__table_exs_dvy_c1c__entry__2" > 0x20< / td > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "u_boot_transplant__table_exs_dvy_c1c__entry__3" > 4K< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "u_boot_transplant__table_exs_dvy_c1c__entry__4" > 基础能力，主要做兼容，不做主力< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "u_boot_transplant__table_exs_dvy_c1c__entry__1" > 32K Block Erase (BE)< / td > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "u_boot_transplant__table_exs_dvy_c1c__entry__2" > 0x52< / td > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "u_boot_transplant__table_exs_dvy_c1c__entry__3" > 32K< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "u_boot_transplant__table_exs_dvy_c1c__entry__4" > 不再使用，和 BE-64 成对< / td > < / tr > < tr class = "- topic/row" > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "u_boot_transplant__table_exs_dvy_c1c__entry__1" > 64K Block Erase (BE)< / td > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "u_boot_transplant__table_exs_dvy_c1c__entry__2" > 0xD8< / td > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "u_boot_transplant__table_exs_dvy_c1c__entry__3" > 64K< / td > < td class = "- topic/entry entry colsep-0 rowsep-0" headers = "u_boot_transplant__table_exs_dvy_c1c__entry__4" > 大部分都支持，如果不支持则必须支持 SE< / td > < / tr > < / tbody > < / table > < / div > < p class = "- topic/p p" data-ofbid = "d308466e208__20250121171814" > 在驱动中，
64K， ： < / p > < ul class = "- topic/ul ul" id = "u_boot_transplant__ul_fxs_dvy_c1c" data-ofbid = "u_boot_transplant__ul_fxs_dvy_c1c" > < li class = "- topic/li li" data-ofbid = "d308466e211__20250121171814" > 在数据手册中，如果支持 64K Block Erase (0xD8） ， ‘ ’ < / li > < li class = "- topic/li li" data-ofbid = "d308466e213__20250121171814" > 在数据手册中, 如果不支持 64K Block Erase (0xD8） ， ‘ ’ < / li > < / ul > < div class = "- topic/p p" data-ofbid = "d308466e215__20250121171814" >
< br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "u_boot_transplant__image_gxs_dvy_c1c" src = "../../../images/memory/spinor_sector_size.png" width = "480" alt = "se" / > < / div > < br / >
< / div > < / li > < li class = "- topic/li li" data-ofbid = "d308466e221__20250121171814" > < strong class = "+ topic/ph hi-d/b ph b" > n_sectors< / strong > ： （ ）
sector size)，需要注意不同参数使用 Byte（ ） （ ） < ul class = "- topic/ul ul" id = "u_boot_transplant__ul_gzk_3vy_c1c" data-ofbid = "u_boot_transplant__ul_gzk_3vy_c1c" > < li class = "- topic/li li" data-ofbid = "d308466e226__20250121171814" >
< p class = "- topic/p p" data-ofbid = "d308466e228__20250121171814" > gd25q128： < / p >
< / li > < li class = "- topic/li li" data-ofbid = "d308466e231__20250121171814" >
< p class = "- topic/p p" data-ofbid = "d308466e233__20250121171814" > FM25Q128: 128Mb / 64KB = 256< / p >
< / li > < li class = "- topic/li li" data-ofbid = "d308466e236__20250121171814" >
< p class = "- topic/p p" data-ofbid = "d308466e238__20250121171814" > FM25Q64: 64Mb / 64KB = 128< / p >
< / li > < / ul > < / li > < li class = "- topic/li li" data-ofbid = "d308466e241__20250121171814" > < strong class = "+ topic/ph hi-d/b ph b" > flags< / strong > ：设置额外的功能标志。< ul class = "- topic/ul ul" id = "u_boot_transplant__ul_sxx_jvy_c1c" data-ofbid = "u_boot_transplant__ul_sxx_jvy_c1c" > < li class = "- topic/li li" data-ofbid = "d308466e246__20250121171814" > SECT_4K 建议均设置，此功能用来兼容 Sector Erase( SE)
的支持，在一些特殊情况下可以继续工作< / li > < li class = "- topic/li li" data-ofbid = "d308466e248__20250121171814" > 如果支持 0xBB 命令，则打开 SPI_NOR_DUAL_READ< / li > < li class = "- topic/li li" data-ofbid = "d308466e250__20250121171814" > 如果支持 0xEB 命令，则打开 SPI_NOR_QUAD_READ< div class = "- topic/p p" data-ofbid = "d308466e252__20250121171814" >
< br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "u_boot_transplant__image_gds_5jv_mbc" src = "../../../images/memory/spinor_qspi_read.png" width = "480" alt = "qspi" / > < / div > < br / >
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