u-boot.git/drivers/mtd, branch v2015.04-rc3

kconfig: remove unneeded dependency on !SPL_BUILD

2015-02-24T22:06:27Z

Now CONFIG_SPL_BUILD is not defined in Kconfig, so "!depends on SPL_BUILD" and "if !SPL_BUILD" are redundant. Signed-off-by: Masahiro Yamada

kconfig: switch to single .config configuration

2015-02-24T22:06:23Z

When Kconfig for U-boot was examined, one of the biggest issues was how to support multiple images (Normal, SPL, TPL). There were actually two options, "single .config" and "multiple .config". After some discussions and thought experiments, I chose the latter, i.e. to create ".config", "spl/.config", "tpl/.config" for Normal, SPL, TPL, respectively. It is true that the "multiple .config" strategy provided us the maximum flexibility and helped to avoid duplicating CONFIGs among Normal, SPL, TPL, but I have noticed some fatal problems: [1] It is impossible to share CONFIG options across the images. If you change the configuration of Main image, you often have to adjust some SPL configurations correspondingly. Currently, we cannot handle the dependencies between them. It means one of the biggest advantages of Kconfig is lost. [2] It is too painful to change both ".config" and "spl/.config". Sunxi guys started to work around this problem by creating a new configuration target. Commit cbdd9a9737cc (sunxi: kconfig: Add %_felconfig rule to enable FEL build of sunxi platforms.) added "make *_felconfig" to enable CONFIG_SPL_FEL on both images. Changing the configuration of multiple images in one command is a generic demand. The current implementation cannot propose any good solution about this. [3] Kconfig files are getting ugly and difficult to understand. Commit b724bd7d6349 (dm: Kconfig: Move CONFIG_SYS_MALLOC_F_LEN to Kconfig) has sprinkled "if !SPL_BUILD" over the Kconfig files. [4] The build system got more complicated than it should be. To adjust Linux-originated Kconfig to U-Boot, the helper script "scripts/multiconfig.sh" was introduced. Writing a complicated text processor is a shell script sometimes caused problems. Now I believe the "single .config" will serve us better. With it, all the problems above would go away. Instead, we will have to add some CONFIG_SPL_* (and CONFIG_TPL_*) options such as CONFIG_SPL_DM, but we will not have much. Anyway, this is what we do now in scripts/Makefile.spl. I admit my mistake with my apology and this commit switches to the single .config configuration. It is not so difficult to do that: - Remove unnecessary processings from scripts/multiconfig.sh This file will remain for a while to support the current defconfig format. It will be removed after more cleanups are done. - Adjust some makefiles and Kconfigs - Add some entries to include/config_uncmd_spl.h and the new file scripts/Makefile.uncmd_spl. Some CONFIG options that are not supported on SPL must be disabled because one .config is shared between SPL and U-Boot proper going forward. I know this is not a beautiful solution and I think we can do better, but let's see how much we will have to describe them. - update doc/README.kconfig More cleaning up patches will follow this. Signed-off-by: Masahiro Yamada Reviewed-by: Simon Glass

mtd, omap: fix case NAND_OMAP_GPMC_PREFETCH not defined

2015-02-16T17:41:40Z

The patch c316f577b4b72d1a1aeb559e9b3fad20808f1ffd breaks siemens boards because prefetch mode is not enabled. I assume it breaks other boards as well that don't use prefetch. This patch sets read_buf to nand_read_buf if NAND_OMAP_GPMC_PREFETCH is not defined. Signed-off-by: Samuel Egli CC: Daniel Mack CC: Guido Martínez CC: Tom Rini CC: Heiko Schocher

dm: Expand and complete Kconfig in drivers/

2015-02-12T17:35:33Z

Expand the help messages for each driver. Add missing Kconfig for I2C, SPI flash and thermal. Signed-off-by: Simon Glass Reviewed-by: Masahiro Yamada

mtd: atmel_nand: according to pmecc version to perform 0xff page correction

2015-02-07T22:42:57Z

As the PMECC hardware has different version. In SAMA5D4 chip, the PMECC ip can generate 0xff pmecc ECC value for all 0xff sector. According to this, add PMECC version check, if it's SAMA5D4 then we always let PMECC hardware to correct it. Signed-off-by: Josh Wu Acked-by: Bo Shen Acked-by: Andreas Bießmann

Merge branch 'master' of git://git.denx.de/u-boot-ubi

2015-02-04T18:30:00Z

dm: spi: Move slave details to child platdata

2015-01-30T00:09:56Z

At present we go through various contortions to store the SPI slave's chip select in its private data. This only exists when the slave is active so must be set up when it is probed. Until the device is probed we don't actually know what chip select it will appear on. However, now that we can support per-child platform data, we can use that instead. This allows us to set up the chip select when the child is bound, and avoid the messy contortions. Unfortunately this is a fairly large change and it seems to be difficult to break it down further. Signed-off-by: Simon Glass

dm: sandbox: sf: Tidy up the error handling in sandbox_sf_probe()

2015-01-30T00:09:56Z

Use a single exit point when we have an error and add debugging there. Signed-off-by: Simon Glass

dm: tegra: nand: Remove use of fdtdec GPIO support

2015-01-30T00:09:52Z

These functions are going away, so use the new uclass support instead. Signed-off-by: Simon Glass

ubi: reset mtd_devs when ubi part fail

2015-01-28T06:41:18Z

if "ubi part" fails, reset also mtd_devs to 0, as further "ubi part" would use wrong mtd_devs. Signed-off-by: Heiko Schocher