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authorMarek Vasut <marex@denx.de>2016-04-27 23:18:55 +0200
committerMarek Vasut <marex@denx.de>2016-05-06 18:41:49 +0200
commit26da6353e17111d7f0882866950cf26a679b8d5f (patch)
tree4d7f177d994f6f189869a3c75bae40655b92c4f1 /arch/arm/mach-at91/spl_at91.c
parent8b1a07493f0ad56fafaccce640a0403500e57a78 (diff)
downloadblackbird-obmc-uboot-26da6353e17111d7f0882866950cf26a679b8d5f.tar.gz
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mtd: cqspi: Simplify indirect write code
The indirect write code is buggy pile of nastiness which fails horribly when the system runs fast enough to saturate the controller. The failure results in some pages (256B) not being written to the flash. This can be observed on systems which run with Dcache enabled and L2 cache enabled, like the Altera SoCFPGA. This patch replaces the whole unmaintainable indirect write implementation with the one from upcoming Linux CQSPI driver, which went through multiple rounds of thorough review and testing. While this makes the patch look terrifying and violates all best-practices of software development, all the patch does is it plucks out duplicate ad-hoc code distributed across the driver and replaces it with more compact code doing exactly the same thing. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Anatolij Gustschin <agust@denx.de> Cc: Chin Liang See <clsee@altera.com> Cc: Dinh Nguyen <dinguyen@opensource.altera.com> Cc: Jagan Teki <jteki@openedev.com> Cc: Pavel Machek <pavel@denx.de> Cc: Stefan Roese <sr@denx.de> Cc: Vignesh R <vigneshr@ti.com>
Diffstat (limited to 'arch/arm/mach-at91/spl_at91.c')
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