da850: Add instructions to copy AIS image to NAND
Add instructions to write an AIS image to NAND by using the u-boot nand tools. Signed-off-by: Axel Haslam <ahaslam@baylibre.com>
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@ -47,6 +47,47 @@ U-Boot > sf erase 0 +320000
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U-Boot > tftp u-boot.ais
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U-Boot > tftp u-boot.ais
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U-Boot > sf write c0700000 0 $filesize
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U-Boot > sf write c0700000 0 $filesize
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Flashing the images to NAND
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===========================
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The AIS image can be written to NAND using the u-boot "nand" commands.
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Example:
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OMAPL138_LCDK requires the AIS image to be written to the second block of
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the NAND flash.
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From the "nand info" command we see that the second block would start at
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offset 0x20000:
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U-Boot > nand info
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sector size 128 KiB (0x20000)
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Page size 2048 b
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From the tftp command we see that we need to copy 0x74908 bytes from
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memory address 0xc0700000 (0x75000 if we align a page of 2048):
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U-Boot > tftp u-boot.ais
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Load address: 0xc0700000
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Bytes transferred = 477448 (74908 hex)
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The commands to write the image from memory to NAND would be:
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U-Boot > nand erase 0x20000 0x75000
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U-Boot > nand write 0xc0700000 0x20000 0x75000
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Alternatively, MTD partitions may be defined. Using "mtdparts" to
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conveniently have a bootloader partition starting at the second block
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(offset 0x20000):
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setenv mtdids nand0=davinci_nand.0
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setenv mtdparts mtdparts=davinci_nand.0:128k(bootenv),2m(bootloader)
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In this case the commands would be simplified to:
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U-Boot > tftp u-boot.ais
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U-Boot > nand erase.part bootloader
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U-Boot > nand write 0xc0700000 bootloader
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Flashing the images to MMC
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Flashing the images to MMC
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==========================
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==========================
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If the boot pins are set to boot from mmc, the RBL will try to load the
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If the boot pins are set to boot from mmc, the RBL will try to load the
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