2025-09-30 11:56:06 +08:00
<!DOCTYPE html> < html xmlns = "http://www.w3.org/1999/xhtml" xml:lang = "zh-cn" lang = "zh-cn" data-whc_version = "26.0" >
< head > < meta http-equiv = "Content-Type" content = "text/html; charset=UTF-8" / > < meta name = "viewport" content = "width=device-width, initial-scale=1.0" / > < meta http-equiv = "X-UA-Compatible" content = "IE=edge" / > < meta name = "description" content = "SPI NOR 驱动 Linux 和 U-Boot 的驱动不一样， ， ， / > < meta name = "DC.rights.owner" content = "(C) 版权 2025" / > < meta name = "copyright" content = "(C) 版权 2025" / > < meta name = "generator" content = "DITA-OT" / > < meta name = "DC.type" content = "concept" / > < meta name = "DC.creator" content = "yan.wang" / > < meta name = "DC.date.created" content = "2024-01-17" / > < meta name = "DC.date.modified" content = "2024-07-15" / > < meta name = "DC.format" content = "HTML5" / > < meta name = "DC.identifier" content = "spi_nor_linux_transplant" / > < meta name = "DC.language" content = "zh-CN" / > < title > Linux 移植< / title > <!-- Build number 2023110923. --> < meta name = "wh-path2root" content = "../../../" / > < meta name = "wh-toc-id" content = "" / > < meta name = "wh-source-relpath" content = "topics/sdk/spinor/spinor_linux_transplant.dita" / > < meta name = "wh-out-relpath" content = "topics/sdk/spinor/spinor_linux_transplant.html" / >
< link rel = "stylesheet" type = "text/css" href = "../../../webhelp/app/commons.css?buildId=2023110923" / >
< link rel = "stylesheet" type = "text/css" href = "../../../webhelp/app/topic.css?buildId=2023110923" / >
< script src = "../../../webhelp/app/options/properties.js?buildId=20250121171154" > < / script >
< script src = "../../../webhelp/app/localization/strings.js?buildId=2023110923" > < / script >
< script src = "../../../webhelp/app/search/index/keywords.js?buildId=20250121171154" > < / script >
< script defer = "defer" src = "../../../webhelp/app/commons.js?buildId=2023110923" > < / script >
< script defer = "defer" src = "../../../webhelp/app/topic.js?buildId=2023110923" > < / script >
< link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/aic-styles-web.css?buildId=2023110923" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/notes.css?buildId=2023110923" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/aic-common.css?buildId=2023110923" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/aic-images.css?buildId=2023110923" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/footnote.css?buildId=2023110923" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/aic-web-watermark.css?buildId=2023110923" / > < link rel = "stylesheet" type = "text/css" href = "../../../webhelp/template/topic-body-list.css?buildId=2023110923" / > < / head >
< body id = "spi_nor_linux_transplant" class = "wh_topic_page frmBody" >
< a href = "#wh_topic_body" class = "sr-only sr-only-focusable" >
跳转到主要内容
< / a >
< header class = "navbar navbar-default wh_header" >
< div class = "container-fluid" >
< div class = "wh_header_flex_container navbar-nav navbar-expand-md navbar-dark" >
< div class = "wh_logo_and_publication_title_container" >
< div class = "wh_logo_and_publication_title" >
< a href = "http://www.artinchip.com" class = " wh_logo d-none d-sm-block " > < img src = "../../../company-logo-white.png" alt = "RTOS SDK 使用指南SDK 指南文件" / > < / a >
< div class = " wh_publication_title " > < a href = "../../../index.html" > < span class = "booktitle" > < span class = "ph mainbooktitle" > RTOS SDK 使用指南< / span > < span class = "ph booktitlealt" > SDK 指南文件< / span > < / span > < / a > < / div >
< / div >
< / div >
< div class = "wh_top_menu_and_indexterms_link collapse navbar-collapse" id = "wh_top_menu_and_indexterms_link" >
< / div >
< / div >
< / div >
< / header >
< div class = " wh_search_input navbar-form wh_topic_page_search search " role = "form" >
< form id = "searchForm" method = "get" role = "search" action = "../../../search.html" > < div > < input type = "search" placeholder = "搜索 " class = "wh_search_textfield" id = "textToSearch" name = "searchQuery" aria-label = "搜索查询" required = "required" / > < button type = "submit" class = "wh_search_button" aria-label = "搜索" > < span class = "search_input_text" > 搜索< / span > < / button > < / div > < / form >
< / div >
< div class = "container-fluid" id = "wh_topic_container" >
< div class = "row" >
< nav class = "wh_tools d-print-none navbar-expand-md" aria-label = "Tools" >
< div data-tooltip-position = "bottom" class = " wh_breadcrumb " > < / div >
< div class = "wh_right_tools" >
< button class = "wh_hide_highlight" aria-label = "切换搜索突出显示" title = "切换搜索突出显示" > < / button >
< button class = "webhelp_expand_collapse_sections" data-next-state = "collapsed" aria-label = "折叠截面" title = "折叠截面" > < / button >
< div class = " wh_print_link print d-none d-md-inline-block " > < button onClick = "window.print()" title = "打印此页" aria-label = "打印此页" > < / button > < / div >
< / div >
< / nav >
< / div >
< div class = "wh_content_area" >
< div class = "row" >
< div class = "col-lg-10 col-md-10 col-sm-10 col-xs-12" id = "wh_topic_body" >
< button id = "wh_close_topic_toc_button" class = "close-toc-button d-none" aria-label = "Toggle topic table of content" aria-controls = "wh_topic_toc" aria-expanded = "true" >
< span class = "close-toc-icon-container" >
< span class = "close-toc-icon" > < / span >
< / span >
< / button >
< div class = " wh_topic_content body " > < main role = "main" > < article class = "- topic/topic concept/concept topic concept" role = "article" aria-labelledby = "ariaid-title1" > < span class = "edit-link" style = "font-size:12px; opacity:0.6; text-align:right; vertical-align:middle" > < a target = "_blank" href = "http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/spinor/spinor_linux_transplant.dita" > Edit online< / a > < / span > < h1 class = "- topic/title title topictitle1" id = "ariaid-title1" > Linux 移植< / h1 > < div class = "date inPage" > 15 Jul 2024< / div > < div style = "color: gray;" >
Read time: 5 minute(s)
< / div > < div class = "- topic/body concept/conbody body conbody" > < p class = "- topic/p p" data-ofbid = "d284838e23__20250121171754" > SPI NOR 驱动 Linux 和 U-Boot 的驱动不一样，
< code class = "+ topic/ph pr-d/codeph ph codeph" > Gigadevice< / code > 的 < code class = "+ topic/ph pr-d/codeph ph codeph" > gd25q128< / 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< / p > < div class = "- topic/p p" data-ofbid = "d284838e37__20250121171754" >
< ul class = "- topic/ul ul" id = "spi_nor_linux_transplant__ul_es5_xvy_c1c" data-ofbid = "spi_nor_linux_transplant__ul_es5_xvy_c1c" > < li class = "- topic/li li" data-ofbid = "d284838e40__20250121171754" >
< p class = "- topic/p p" data-ofbid = "d284838e42__20250121171754" > 移植一款 SPI NOR， ， < / p >
< / li > < li class = "- topic/li li" data-ofbid = "d284838e45__20250121171754" >
< p class = "- topic/p p" data-ofbid = "d284838e47__20250121171754" > 其他的参数都可以默认设置，
SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ)< / p >
< / li > < li class = "- topic/li li" data-ofbid = "d284838e50__20250121171754" >
< p class = "- topic/p p" data-ofbid = "d284838e52__20250121171754" > 推荐使用标准 dts 进行 SPI NOR 的兼容< / p >
< / li > < / ul >
< / div > < section class = "- topic/section section" id = "spi_nor_linux_transplant__section_myj_zvy_c1c" data-ofbid = "spi_nor_linux_transplant__section_myj_zvy_c1c" > < h2 class = "- topic/title title sectiontitle" > 文件准备< / h2 >
< p class = "- topic/p p" data-ofbid = "d284838e61__20250121171754" > 相较于 SPI NAND 器件， SPI NOR
的接口更加标准，但为了统一管理的方便，还是会为某一个公司创建一个文件进行管理，如果该公司的文件已经存在，则直接添加新器件支持即可< / p >
< ul class = "- topic/ul ul" id = "spi_nor_linux_transplant__ul_nyj_zvy_c1c" data-ofbid = "spi_nor_linux_transplant__ul_nyj_zvy_c1c" > < li class = "- topic/li li" data-ofbid = "d284838e65__20250121171754" > 在 < span class = "+ topic/ph sw-d/filepath ph filepath" > source/linux-5.10/drivers/mtd/spi-nor/< / span > 下建相应公司的标识的文件，如
< span class = "+ topic/ph sw-d/filepath ph filepath" > fmsh.c cfx.c< / span > < / li > < li class = "- topic/li li" data-ofbid = "d284838e72__20250121171754" > 在 Makefile 中添加该文件的编译： spi-nor-objs += fmsh.o< / li > < li class = "- topic/li li" data-ofbid = "d284838e74__20250121171754" > 在 < span class = "+ topic/ph sw-d/filepath ph filepath" > source/linux-5.10/drivers/mtd/spi-nor/core.h< / span > 中声明 extern
const struct spi_nor_manufacturer spi_nor_fmsh;< / li > < / ul >
< / section > < section class = "- topic/section section" id = "spi_nor_linux_transplant__section_oyj_zvy_c1c" data-ofbid = "spi_nor_linux_transplant__section_oyj_zvy_c1c" > < h2 class = "- topic/title title sectiontitle" > 驱动索引< / h2 >
< p class = "- topic/p p" data-ofbid = "d284838e85__20250121171754" > 内核中所支持的 SPI NOR 设备通过两级列表进行设置。< / p >
< div class = "- topic/p p" data-ofbid = "d284838e88__20250121171754" > 首先检查 < span class = "+ topic/ph sw-d/filepath ph filepath" > source/linux-5.10/drivers/mtd/spi-nor/core.c< / span > 中的
< span class = "+ topic/keyword pr-d/parmname keyword parmname" > manufacturers< / span > ,
查看新设备的厂商是否在列表之中：< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "spi_nor_linux_transplant__codeblock_c1q_1wy_c1c" data-ofbid = "spi_nor_linux_transplant__codeblock_c1q_1wy_c1c" > < strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > const< / strong > < strong class = "hl-keyword" > struct< / strong > spi_nor_manufacturer *manufacturers[] = {
& spi_nor_atmel,
& spi_nor_catalyst,
& spi_nor_eon,
& spi_nor_esmt,
& spi_nor_everspin,
& spi_nor_fujitsu,
& spi_nor_gigadevice,
& spi_nor_intel,
& spi_nor_issi,
& spi_nor_macronix,
& spi_nor_micron,
& spi_nor_st,
& spi_nor_spansion,
& spi_nor_sst,
& spi_nor_winbond,
& spi_nor_xilinx,
& spi_nor_xmc,
& spi_nor_boya,
};< / pre > < / div >
< p class = "- topic/p p" data-ofbid = "d284838e99__20250121171754" > 再检查具体的设备厂商文件，具体的型号是否在列表之中（ 以 gigadevice 为例）:< / p >
< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "spi_nor_linux_transplant__codeblock_ypw_1wy_c1c" data-ofbid = "spi_nor_linux_transplant__codeblock_ypw_1wy_c1c" > < strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > const< / strong > < strong class = "hl-keyword" > struct< / strong > flash_info gigadevice_parts[] = {
......
{ < span class = "hl-string" > "gd25q128"< / span > , INFO(< span class = "hl-number" > 0xc84018< / 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 |
SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB) },
......
};< / pre >
< p class = "- topic/p p" data-ofbid = "d284838e106__20250121171754" > 此处检查，需要查找新设备的 Datasheet， ，
< code class = "+ topic/ph pr-d/codeph ph codeph" > 0xc84018< / code > ，其中 Manufacture ID = < code class = "+ topic/ph pr-d/codeph ph codeph" > 0xc8< / code > , Device ID
ID[15~8] = < code class = "+ topic/ph pr-d/codeph ph codeph" > 0x40< / code > , Device ID[7~0] = < code class = "+ topic/ph pr-d/codeph ph codeph" > 0x18< / code > 。< / p >
< / section > < section class = "- topic/section section" id = "spi_nor_linux_transplant__section_ol3_xwy_c1c" data-ofbid = "spi_nor_linux_transplant__section_ol3_xwy_c1c" > < h2 class = "- topic/title title sectiontitle" > spi_nor_manufacturer< / h2 >
< p class = "- topic/p p" data-ofbid = "d284838e126__20250121171754" > 该结构为第一级索引，用来描述器件厂家的信息< / p >
< div class = "- topic/p p" data-ofbid = "d284838e129__20250121171754" > SPI NOR
的接口和操作命令很统一，基本没有需要特殊处理的命令< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "spi_nor_linux_transplant__codeblock_ezk_fwy_c1c" data-ofbid = "spi_nor_linux_transplant__codeblock_ezk_fwy_c1c" > < strong class = "hl-keyword" > const< / strong > < strong class = "hl-keyword" > struct< / strong > spi_nor_manufacturer spi_nor_fmsh = {
.name = < span class = "hl-string" > "FudanMicro"< / span > , < em class = "hl-comment" > //厂家名字标识< / em >
.parts = fmsh_parts, < em class = "hl-comment" > //本驱动支持的器件< / em >
.nparts = ARRAY_SIZE(fmsh_parts), < em class = "hl-comment" > //支持的器件的个数< / em >
};< / pre > < / div >
< / section > < section class = "- topic/section section" id = "spi_nor_linux_transplant__section_r2d_zwy_c1c" data-ofbid = "spi_nor_linux_transplant__section_r2d_zwy_c1c" > < h2 class = "- topic/title title sectiontitle" > flash_info< / h2 >
< div class = "- topic/div div" >
< div class = "- topic/p p" data-ofbid = "d284838e141__20250121171754" > 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 = "spi_nor_linux_transplant__codeblock_y1s_45y_c1c" data-ofbid = "spi_nor_linux_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 = "spi_nor_linux_transplant__ul_g2b_t5y_c1c" data-ofbid = "spi_nor_linux_transplant__ul_g2b_t5y_c1c" > < li class = "- topic/li li" data-ofbid = "d284838e150__20250121171754" > < 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 = "spi_nor_linux_transplant__table_l5h_55y_c1c" data-ofbid = "spi_nor_linux_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 = "spi_nor_linux_transplant__table_l5h_55y_c1c__entry__1" > 阈值< / th > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "spi_nor_linux_transplant__table_l5h_55y_c1c__entry__2" > 名称< / th > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "spi_nor_linux_transplant__table_l5h_55y_c1c__entry__3" > 示例< / th > < th class = "- topic/entry entry colsep-0 rowsep-1" id = "spi_nor_linux_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 = "spi_nor_linux_transplant__table_l5h_55y_c1c__entry__1" > MID7 - IDF0< / td > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "spi_nor_linux_transplant__table_l5h_55y_c1c__entry__2" > Maunfacture ID< / td > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "spi_nor_linux_transplant__table_l5h_55y_c1c__entry__3" > 0xa1< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "spi_nor_linux_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 = "spi_nor_linux_transplant__table_l5h_55y_c1c__entry__1" > D15 - D8< / td > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "spi_nor_linux_transplant__table_l5h_55y_c1c__entry__2" > Memory Type< / td > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "spi_nor_linux_transplant__table_l5h_55y_c1c__entry__3" > 0x40< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "spi_nor_linux_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 = "spi_nor_linux_transplant__table_l5h_55y_c1c__entry__1" > D7 - D0< / td > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "spi_nor_linux_transplant__table_l5h_55y_c1c__entry__2" > Memory Desity< / td > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "spi_nor_linux_transplant__table_l5h_55y_c1c__entry__3" > 0x17< / td > < td class = "- topic/entry entry colsep-0 rowsep-0" headers = "spi_nor_linux_transplant__table_l5h_55y_c1c__entry__4" > 0x9F 命令< / td > < / tr > < / tbody > < / table > < / div > < p class = "- topic/p p" data-ofbid = "d284838e198__20250121171754" > 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 = "spi_nor_linux_transplant__ul_m5h_55y_c1c" data-ofbid = "spi_nor_linux_transplant__ul_m5h_55y_c1c" > < li class = "- topic/li li" data-ofbid = "d284838e201__20250121171754" > 0xC84018< div class = "- topic/p p" data-ofbid = "d284838e203__20250121171754" >
< br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "spi_nor_linux_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 = "d284838e209__20250121171754" > 0xC22018< div class = "- topic/p p" data-ofbid = "d284838e211__20250121171754" >
< br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "spi_nor_linux_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 = "d284838e217__20250121171754" > 0xA14017< div class = "- topic/p p" data-ofbid = "d284838e219__20250121171754" >
< br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "spi_nor_linux_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 = "d284838e225__20250121171754" > < 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 = "d284838e229__20250121171754" > 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 = "spi_nor_linux_transplant__table_exs_dvy_c1c" data-ofbid = "spi_nor_linux_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 = "spi_nor_linux_transplant__table_exs_dvy_c1c__entry__1" > 操作方式< / th > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "spi_nor_linux_transplant__table_exs_dvy_c1c__entry__2" > 命令< / th > < th class = "- topic/entry entry colsep-1 rowsep-1" id = "spi_nor_linux_transplant__table_exs_dvy_c1c__entry__3" > 擦除大小< / th > < th class = "- topic/entry entry colsep-0 rowsep-1" id = "spi_nor_linux_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 = "spi_nor_linux_transplant__table_exs_dvy_c1c__entry__1" > Sector Erase( SE)< / td > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "spi_nor_linux_transplant__table_exs_dvy_c1c__entry__2" > 0x20< / td > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "spi_nor_linux_transplant__table_exs_dvy_c1c__entry__3" > 4K< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "spi_nor_linux_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 = "spi_nor_linux_transplant__table_exs_dvy_c1c__entry__1" > 32K Block Erase (BE)< / td > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "spi_nor_linux_transplant__table_exs_dvy_c1c__entry__2" > 0x52< / td > < td class = "- topic/entry entry colsep-1 rowsep-1" headers = "spi_nor_linux_transplant__table_exs_dvy_c1c__entry__3" > 32K< / td > < td class = "- topic/entry entry colsep-0 rowsep-1" headers = "spi_nor_linux_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 = "spi_nor_linux_transplant__table_exs_dvy_c1c__entry__1" > 64K Block Erase (BE)< / td > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "spi_nor_linux_transplant__table_exs_dvy_c1c__entry__2" > 0xD8< / td > < td class = "- topic/entry entry colsep-1 rowsep-0" headers = "spi_nor_linux_transplant__table_exs_dvy_c1c__entry__3" > 64K< / td > < td class = "- topic/entry entry colsep-0 rowsep-0" headers = "spi_nor_linux_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 = "d284838e275__20250121171754" > 在驱动中，
64K， ： < / p > < ul class = "- topic/ul ul" id = "spi_nor_linux_transplant__ul_fxs_dvy_c1c" data-ofbid = "spi_nor_linux_transplant__ul_fxs_dvy_c1c" > < li class = "- topic/li li" data-ofbid = "d284838e278__20250121171754" > 在数据手册中，如果支持 64K Block Erase (0xD8） ， ‘ ’ < / li > < li class = "- topic/li li" data-ofbid = "d284838e280__20250121171754" > 在数据手册中, 如果不支持 64K Block Erase (0xD8） ， ‘ ’ < / li > < / ul > < div class = "- topic/p p" data-ofbid = "d284838e282__20250121171754" >
< br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "spi_nor_linux_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 = "d284838e288__20250121171754" > < 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 = "spi_nor_linux_transplant__ul_gzk_3vy_c1c" data-ofbid = "spi_nor_linux_transplant__ul_gzk_3vy_c1c" > < li class = "- topic/li li" data-ofbid = "d284838e293__20250121171754" >
< p class = "- topic/p p" data-ofbid = "d284838e295__20250121171754" > gd25q128： < / p >
< / li > < li class = "- topic/li li" data-ofbid = "d284838e298__20250121171754" >
< p class = "- topic/p p" data-ofbid = "d284838e300__20250121171754" > FM25Q128: 128Mb / 64KB = 256< / p >
< / li > < li class = "- topic/li li" data-ofbid = "d284838e303__20250121171754" >
< p class = "- topic/p p" data-ofbid = "d284838e305__20250121171754" > FM25Q64: 64Mb / 64KB = 128< / p >
< / li > < / ul > < / li > < li class = "- topic/li li" data-ofbid = "d284838e308__20250121171754" > < 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 = "spi_nor_linux_transplant__ul_sxx_jvy_c1c" data-ofbid = "spi_nor_linux_transplant__ul_sxx_jvy_c1c" > < li class = "- topic/li li" data-ofbid = "d284838e313__20250121171754" > 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 = "d284838e315__20250121171754" > 如果支持 0xBB 命令，则打开 SPI_NOR_DUAL_READ< / li > < li class = "- topic/li li" data-ofbid = "d284838e317__20250121171754" > 如果支持 0xEB 命令，则打开 SPI_NOR_QUAD_READ< div class = "- topic/p p" data-ofbid = "d284838e319__20250121171754" >
< br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "spi_nor_linux_transplant__image_gds_5jv_mbc" src = "../../../images/memory/spinor_qspi_read.png" width = "480" alt = "qspi" / > < / div > < br / >
< / div > < / li > < li class = "- topic/li li" data-ofbid = "d284838e325__20250121171754" > 如果有 Status Register， ， ， < div class = "- topic/p p" data-ofbid = "d284838e327__20250121171754" >
< br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "spi_nor_linux_transplant__image_vxx_jvy_c1c" src = "../../../images/memory/spinor_user_fsr.png" width = "480" alt = "fsr" / > < / div > < br / >
< / div > < / li > < / ul > < / li > < / ul >
< / div >
< / section > < section class = "- topic/section section" id = "spi_nor_linux_transplant__section_rhj_fxy_c1c" data-ofbid = "spi_nor_linux_transplant__section_rhj_fxy_c1c" > < h2 class = "- topic/title title sectiontitle" > id_table< / h2 >
< div class = "- topic/p p" data-ofbid = "d284838e340__20250121171754" > 除了使用 dts 的 .compatible = “jedec,spi-nor” 统一匹配所有的 SPI NOR 外，驱动还兼容使用非标准 dts 的使用方式， 即直接在
dts 文件中描述要使用的 SPI NOR 的型号，
但这会造成固件和器件的紧耦合，不推荐使用< pre class = "+ topic/pre pr-d/codeblock pre codeblock language-c" id = "spi_nor_linux_transplant__codeblock_u4c_gxy_c1c" data-ofbid = "spi_nor_linux_transplant__codeblock_u4c_gxy_c1c" > < strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > struct< / strong > spi_mem_driver spi_nor_driver = {
.spidrv = {
.driver = {
.name = < span class = "hl-string" > "spi-nor"< / span > ,
.of_match_table = spi_nor_of_table,
},
.id_table = spi_nor_dev_ids,
},
< strong class = "hl-keyword" > static< / strong > < strong class = "hl-keyword" > const< / strong > < strong class = "hl-keyword" > struct< / strong > spi_device_id spi_nor_dev_ids[] = {
< em class = "hl-comment" > /*
* Entries not used in DTs that should be safe to drop after replacing
* them with "spi-nor" in platform data.
*/< / em >
{< span class = "hl-string" > "s25sl064a"< / span > }, {< span class = "hl-string" > "w25x16"< / span > }, {< span class = "hl-string" > "m25p10"< / span > }, {< span class = "hl-string" > "m25px64"< / span > },
< em class = "hl-comment" > /*
* Entries that were used in DTs without "jedec,spi-nor" fallback and
* should be kept for backward compatibility.
*/< / em >
{< span class = "hl-string" > "at25df321a"< / span > }, {< span class = "hl-string" > "at25df641"< / span > }, {< span class = "hl-string" > "at26df081a"< / span > },
{< span class = "hl-string" > "mx25l4005a"< / span > }, {< span class = "hl-string" > "mx25l1606e"< / span > }, {< span class = "hl-string" > "mx25l6405d"< / span > }, {< span class = "hl-string" > "mx25l12805d"< / span > },
{< span class = "hl-string" > "mx25l25635e"< / span > },{< span class = "hl-string" > "mx66l51235l"< / span > },
{< span class = "hl-string" > "n25q064"< / span > }, {< span class = "hl-string" > "n25q128a11"< / span > }, {< span class = "hl-string" > "n25q128a13"< / span > }, {< span class = "hl-string" > "n25q512a"< / span > },
{< span class = "hl-string" > "s25fl256s1"< / span > }, {< span class = "hl-string" > "s25fl512s"< / span > }, {< span class = "hl-string" > "s25sl12801"< / span > }, {< span class = "hl-string" > "s25fl008k"< / span > },
{< span class = "hl-string" > "s25fl064k"< / span > },< / pre > < / div >
< / section > < / div > < / article > < / main > < / div >
< / div >
< nav role = "navigation" id = "wh_topic_toc" aria-label = "On this page" class = "col-lg-2 d-none d-lg-block navbar d-print-none" >
< div id = "wh_topic_toc_content" >
< div class = " wh_topic_toc " > < div class = "wh_topic_label" > 在本页上< / div > < ul > < li class = "section-item" > < div class = "section-title" > < a href = "#spi_nor_linux_transplant__section_myj_zvy_c1c" data-tocid = "spi_nor_linux_transplant__section_myj_zvy_c1c" > 文件准备< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#spi_nor_linux_transplant__section_oyj_zvy_c1c" data-tocid = "spi_nor_linux_transplant__section_oyj_zvy_c1c" > 驱动索引< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#spi_nor_linux_transplant__section_ol3_xwy_c1c" data-tocid = "spi_nor_linux_transplant__section_ol3_xwy_c1c" > spi_nor_manufacturer< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#spi_nor_linux_transplant__section_r2d_zwy_c1c" data-tocid = "spi_nor_linux_transplant__section_r2d_zwy_c1c" > flash_info< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#spi_nor_linux_transplant__section_rhj_fxy_c1c" data-tocid = "spi_nor_linux_transplant__section_rhj_fxy_c1c" > id_table< / a > < / div > < / li > < / ul > < / div >
< / div >
< / nav >
< / div >
< / div >
< / div >
< footer class = "navbar navbar-default wh_footer" >
< div class = " footer-container mx-auto " >
< title > footer def< / title >
< style > < ! - -
.p1 {
font-family: FangZhengShuSong, Times, serif;
}
.p2 {
font-family: Arial, Helvetica, sans-serif;
}
.p3 {
font-family: "Lucida Console", "Courier New", monospace;
}
-->< / style >
< div class = "webhelp.fragment.footer" >
< p class = "p1" > Copyright © 2019-2024 广东匠芯创科技有限公司. All rights reserved.< / p >
< / div > < div >
< div class = "generation_time" >
Update Time: 2025-01-21
< / div >
< / div >
< / div >
< / footer >
< div id = "go2top" class = "d-print-none" >
< span class = "oxy-icon oxy-icon-up" > < / span >
< / div >
< div id = "modal_img_large" class = "modal" >
< span class = "close oxy-icon oxy-icon-remove" > < / span >
< div id = "modal_img_container" > < / div >
< div id = "caption" > < / div >
< / div >
< script src = "${pd}/publishing/publishing-styles-AIC-template/js/custom.js" defer = "defer" > < / script >
< / body >
2025-01-23 16:37:00 +08:00
< / html >
