Hi Eric, On Sun, Apr 01, 2012 at 02:45:18PM +0200, Eric Bénard wrote: > Le Sun, 1 Apr 2012 13:49:35 +0300, > Baruch Siach <baruch@xxxxxxxxxx> a écrit : > > On Sun, Apr 01, 2012 at 11:58:53AM +0200, Gabriel Tisan wrote: > > > Has anybody started to implement support for flashes with 4k page size > > > on nand_imx driver ? > > > > 4k flashes should be supported in nand_imx since version v2011.05. See commit > > 4b4958dbb73e6fb553aaf91d539ff3e22bfe9e40 (mtd/nand_imx: add support for page > > size of 4k). I've tested it on i.MX25. > > > newer flashs are using ONFI and thus some 4k flashes are not properly > detected actually in barebox which may be the problem that Gabriel > actually have. > http://en.wikipedia.org/wiki/Open_NAND_Flash_Interface_Working_Group > http://onfi.org/specifications/ > > I have the same requirement on an i.MX53 board (for the moment I > hard coded the right values to bypass the flash detection which > returned wrong results, the 4k falsh being detected as a 2k one) and > plan to work on this during april but hard to say when so that may be > beginiong of may. Does the Linux kernel detect your flash correctly? Write support for 4k flashes may require a patch similar to the kernel's 2c1c5f19 (mtd: mxc_nand: fix OOB corruption when page size > 2KiB), i.e. extended ECC layout for OOB. baruch -- http://baruch.siach.name/blog/ ~. .~ Tk Open Systems =}------------------------------------------------ooO--U--Ooo------------{= - baruch@xxxxxxxxxx - tel: +972.2.679.5364, http://www.tkos.co.il - _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
