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authorAsh Charles <ashcharles@gmail.com>2015-04-28 16:17:53 -0700
committerTom Rini <trini@konsulko.com>2015-05-10 07:29:39 -0400
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omap3: overo: Use software BCH8 ECC for NAND
Overo COMs have NAND flash that requires 4-bit ECC or better except for the first sector which can use 1-bit ECC. The boot ROM expects to load a payload from NAND written using 1-bit hardware-based ECC. In short, write SPL to NAND something like this (4 times for redundancy): #> nandecc hw #> nand write ${loadaddr} 0x0 ${filesize} #> nand write ${loadaddr} 0x20000 ${filesize} #> nand write ${loadaddr} 0x40000 ${filesize} #> nand write ${loadaddr} 0x60000 ${filesize} Then, switch back to software-based BCH8 for everything else: #> nandecc sw bch8 After [1], enlarge the max size of the SPL so the BCH code can fit. [1] https://www.mail-archive.com/u-boot@lists.denx.de/msg163912.html Signed-off-by: Ash Charles <ashcharles@gmail.com>
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