following statement can only change device size from 8-bit(0) to 16-bit(1), but not vice versa: regval |= GPMC_CONFIG1_DEVICESIZE(wval); so as this field has 1 reserved bit, that could be used in future, just clear both bits and then OR with the desired value Signed-off-by: Yegor Yefremov <yegorslists@xxxxxxxxxxxxxx> --- v2: cc linux-arm-kernel mailing list arch/arm/mach-omap2/gpmc.c | 6 ++++++ 1 file changed, 6 insertions(+) Index: b/arch/arm/mach-omap2/gpmc.c =================================================================== --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -528,7 +528,13 @@ case GPMC_CONFIG_DEV_SIZE: regval = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1); + + /* clear 2 target bits */ + regval &= ~GPMC_CONFIG1_DEVICESIZE(3); + + /* set the proper value */ regval |= GPMC_CONFIG1_DEVICESIZE(wval); + gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, regval); break; -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
