diff --git a/board/phytec/pcm058/README b/board/phytec/pcm058/README index 02be0994fc..687366bffb 100644 --- a/board/phytec/pcm058/README +++ b/board/phytec/pcm058/README @@ -61,17 +61,21 @@ Then, clear the SPI flash: => sf probe => sf erase 0x0 0x1000000 -Load the SPL from raw MMC into memory and copy to the SPI. The SPL is maximum -392*512-byte blocks in size therefore 0x188 blocks, totaling 0x31000 bytes: +Load the equivalent of u-boot-with-spl.imx from the raw MMC into memory and +copy to the SPI. The SPL is expected at an offset of 0x400, and its size is +maximum 392*512-byte blocks in size, therefore 0x188 blocks, totaling 0x31000 +bytes. Assume U-boot should fit into 640KiB, therefore 0x500 512-byte blocks, +totalling 0xA0000 bytes. Adding these together: -=> mmc read ${loadaddr} 0x2 0x188 -=> sf write ${loadaddr} 0x400 0x31000 +=> mmc read ${loadaddr} 0x2 0x688 +=> sf write ${loadaddr} 0x400 0xD1000 -Load the U-boot binary into memory and copy to the SPI. U-boot should fit into -640KiB, so 0x500 512-byte blocks, totalling 0xA0000 bytes: +The SPL is located at offset 0x400, and U-boot at 0x31400 in SPI flash, as to +match the SD Card layout. This would allow, instead of reading from the SD Card +above, with networking and TFTP correctly configured, the equivalent of: -=> mmc read ${loadaddr} 0x18a 0x500 -=> sf write ${loadaddr} 0x40000 0xA0000 +=> tftp u-boot-with-spl.imx +=> sf write ${fileaddr} 0x400 ${filesize} The default NAND bootscripts expect a single MTD partition named "rootfs", which in turn contains the UBI volumes "fit" (which contains the kernel fit- diff --git a/configs/pcm058_defconfig b/configs/pcm058_defconfig index c491cbf9a0..b085a7dd0c 100644 --- a/configs/pcm058_defconfig +++ b/configs/pcm058_defconfig @@ -7,7 +7,7 @@ CONFIG_SPL_LIBGENERIC_SUPPORT=y CONFIG_ENV_SIZE=0x4000 CONFIG_ENV_OFFSET=0x100000 CONFIG_ENV_SECT_SIZE=0x10000 -CONFIG_SYS_SPI_U_BOOT_OFFS=0x40000 +CONFIG_SYS_SPI_U_BOOT_OFFS=0x31400 CONFIG_MX6_OCRAM_256KB=y CONFIG_TARGET_PCM058=y CONFIG_SPL_TEXT_BASE=0x00908000 @@ -34,6 +34,7 @@ CONFIG_SPL_SEPARATE_BSS=y CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x18a CONFIG_SPL_DMA=y CONFIG_SPL_FS_EXT4=y +CONFIG_SPL_DM_SPI_FLASH=y CONFIG_SPL_SPI_LOAD=y CONFIG_SPL_WATCHDOG_SUPPORT=y CONFIG_SPL_YMODEM_SUPPORT=y