On Wed, May 28, 2008 at 08:38:37PM +0200, Wolfgang Grandegger wrote: > Scott Wood wrote: > > On Wed, May 28, 2008 at 08:12:28PM +0200, Wolfgang Grandegger wrote: > >> This patch adds support for NAND FLASH on the TQM8548. It is disabled by > >> default and can be enabled for the TQM8548 modules. Note that the R/B pin > >> is not supported by that module requiring to use the specified maximum > >> delay time. > >> > >> Note: With NAND support enabled the size of the U-Boot image exceeds > >> 256 KB and TEXT_BASE must therefore be set to 0xfff80000 in config.mk, > >> doubling the image size :-(. > > > > What does this do differently from the code in drivers/mtd/nand/fsl_upm.c? > > Maybe it does not support multi banks on a NAND chip. I have to check.
Me thinks that you'll have to call fsl_upm_nand_init() for each chip, and that's all. If not, feel free to patch it as you feel appropriate, I'll able to regress-test this driver on MPC8360E-RDK. > > How much of this is board-specific? > > Well, I already gave drivers/mtd/nand/fsl_upm.c a try but was unable to > get it working on this board. Therefore I decided to keep this known to > work driver which we have already for a while. This isn't really an excuse to duplicate drivers. :-) This driver was tested on MPC8555 and MPC8360 CPUs, so it should work with no drastic changes. Some issues might still be there, and if so, fixes are highly appreciated. > With Linux, I had more success. ..especially if general idea works well, we should use single driver. Thanks, -- Anton Vorontsov email: [EMAIL PROTECTED] irc://irc.freenode.net/bd2 ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users