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am335x_spi_partitions在什么地方！

harry zheng
Prodigy 60 points


sdk 8.0下面的分区文件在什么地方啊，一直都找不到！
/* SPI 0/1 Platform Data */
/* SPI flash information */
static struct mtd_partition am335x_spi_partitions[] = {
    /* All the partition sizes are listed in terms of erase size */
    {
        .name       = "SPL",
        .offset     = 0,            /* Offset = 0x0 */
        .size       = SZ_128K,
    },
    {
        .name       = "U-Boot",
        .offset     = MTDPART_OFS_APPEND,   /* Offset = 0x20000 */
        .size       = 2 * SZ_128K,
    },
    {
        .name       = "U-Boot Env",
        .offset     = MTDPART_OFS_APPEND,   /* Offset = 0x60000 */
        .size       = 2 * SZ_4K,
    },
    {
        .name       = "Kernel",
        .offset     = MTDPART_OFS_APPEND,   /* Offset = 0x62000 */
        .size       = 28 * SZ_128K,
    },
    {
        .name       = "File System",
        .offset     = MTDPART_OFS_APPEND,   /* Offset = 0x3E2000 */
        .size       = MTDPART_SIZ_FULL,     /* size ~= 4.1 MiB */
    }
};
  • 0
    TI__Genius 10941 points

    在SDK06.00（kernel为3.2及之前）及以前的版本，通常你会在Linux/arch/arm/mach-omap2/board-am335xevm.c中找到；

    而在SDK07.00（kernel为3.12）和SDK08.00(kernel 为3.14) ，由于linux源码中没有对应的板级文件，板级配置通过devicetree进行。

    所以你可以参考am335x-evm.dts里面的nand flash的分区，添加SPI的分区。

  • 0 回复 Gary Wu
    Prodigy 60 points

    非常感谢，我看到board-am335xevm.c中，有下面这段：

    /* MTD partition table */
    /* All SPL-* partitions are sized to minimal length
    * which can be independently programmable. For
    * NAND flash this is equal to size of erase-block */

    是不是下面的nand分区不用改就可以用作spi分区啊，刚接触TI，很多不懂，如果不是的，能否提供一下spi分区的例子啊，跪求!


    #address-cells = <1>;
    #size-cells = <1>;
    partition@0 {
    label = "NAND.SPL";
    reg = <0x00000000 0x000020000>;
    };
    partition@1 {
    label = "NAND.SPL.backup1";
    reg = <0x00020000 0x00020000>;
    };
    partition@2 {
    label = "NAND.SPL.backup2";
    reg = <0x00040000 0x00020000>;
    };
    partition@3 {
    label = "NAND.SPL.backup3";
    reg = <0x00060000 0x00020000>;
    };
    partition@4 {
    label = "NAND.u-boot-spl-os";
    reg = <0x00080000 0x00040000>;
    };
    partition@5 {
    label = "NAND.u-boot";
    reg = <0x000C0000 0x00100000>;
    };
    partition@6 {
    label = "NAND.u-boot-env";
    reg = <0x001C0000 0x00020000>;
    };
    partition@7 {
    label = "NAND.u-boot-env.backup1";
    reg = <0x001E0000 0x00020000>;
    };
    partition@8 {
    label = "NAND.kernel";
    reg = <0x00200000 0x00800000>;
    };
    partition@9 {
    label = "NAND.file-system";
    reg = <0x00A00000 0x0F600000>;
    };