On 11/13/2018 12:43 PM, Boris Brezillon wrote: > U-boot provides a mean to define default values for mtdids and mtdparts > when they're not defined in the environment. Patch mtd_probe_devices() > to use those default values when env_get("mtdparts") or > env_get("mtdids") return NULL. > > This implementation is based on the logic found in cmd/mtdparts.c. > > Fixes: 5db66b3aee6f ("cmd: mtd: add 'mtd' command") > Reported-by: Stefan Roese <s...@denx.de> > Signed-off-by: Boris Brezillon <boris.brezil...@bootlin.com> > Tested-by: Stefan Roese <s...@denx.de> > Reviewed-by: Lukasz Majewski <lu...@denx.de> > --- > Changes in v3: > - Fix env_get_f() call > - Add Lukasz R-b > > Changes in v2: > - none > --- > drivers/mtd/mtd_uboot.c | 62 +++++++++++++++++++++++++++++++++++++++-- > 1 file changed, 60 insertions(+), 2 deletions(-) > > diff --git a/drivers/mtd/mtd_uboot.c b/drivers/mtd/mtd_uboot.c > index 7d7a11c990d6..5ca560c96879 100644 > --- a/drivers/mtd/mtd_uboot.c > +++ b/drivers/mtd/mtd_uboot.c > @@ -92,12 +92,70 @@ static void mtd_probe_uclass_mtd_devs(void) { } > #endif > > #if defined(CONFIG_MTD_PARTITIONS) > +extern void board_mtdparts_default(const char **mtdids, > + const char **mtdparts);
Why is there this extern ? This should use a prototype of function defined in a header file. Once someone changes the prototype and forgets to update this location, it'll be a disaster. > +static const char *get_mtdids(void) > +{ > + __maybe_unused const char *mtdparts = NULL; > + const char *mtdids = env_get("mtdids"); > + > + if (mtdids) > + return mtdids; > + > +#if defined(CONFIG_SYS_MTDPARTS_RUNTIME) > + board_mtdparts_default(&mtdids, &mtdparts); > +#elif defined(MTDIDS_DEFAULT) > + mtdids = MTDIDS_DEFAULT; > +#elif defined(CONFIG_MTDIDS_DEFAULT) > + mtdids = CONFIG_MTDIDS_DEFAULT; > +#endif > + > + if (mtdids) > + env_set("mtdids", mtdids); > + > + return mtdids; > +} > + > +#define MTDPARTS_MAXLEN 512 > + > +static const char *get_mtdparts(void) > +{ > + __maybe_unused const char *mtdids = NULL; > + static char tmp_parts[MTDPARTS_MAXLEN]; > + static bool use_defaults = true; > + const char *mtdparts = NULL; > + > + if (gd->flags & GD_FLG_ENV_READY) > + mtdparts = env_get("mtdparts"); > + else if (env_get_f("mtdparts", tmp_parts, sizeof(tmp_parts)) != -1) > + mtdparts = tmp_parts; > + > + if (mtdparts || !use_defaults) > + return mtdparts; > + > +#if defined(CONFIG_SYS_MTDPARTS_RUNTIME) > + board_mtdparts_default(&mtdids, &mtdparts); > +#elif defined(MTDPARTS_DEFAULT) > + mtdparts = MTDPARTS_DEFAULT; > +#elif defined(CONFIG_MTDPARTS_DEFAULT) > + mtdparts = CONFIG_MTDPARTS_DEFAULT; > +#endif > + > + if (mtdparts) > + env_set("mtdparts", mtdparts); > + > + use_defaults = false; > + > + return mtdparts; > +} > + > int mtd_probe_devices(void) > { > static char *old_mtdparts; > static char *old_mtdids; > - const char *mtdparts = env_get("mtdparts"); > - const char *mtdids = env_get("mtdids"); > + const char *mtdparts = get_mtdparts(); > + const char *mtdids = get_mtdids(); > bool remaining_partitions = true; > struct mtd_info *mtd; > > -- Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot