1da333ae7SMasahiro Yamadaconfig DM 2da333ae7SMasahiro Yamada bool "Enable Driver Model" 3da333ae7SMasahiro Yamada depends on !SPL_BUILD 4da333ae7SMasahiro Yamada help 5f94a1bedSSimon Glass This config option enables Driver Model. This brings in the core 6f94a1bedSSimon Glass support, including scanning of platform data on start-up. If 7f94a1bedSSimon Glass CONFIG_OF_CONTROL is enabled, the device tree will be scanned also 8f94a1bedSSimon Glass when available. 9*91a91ff8SSimon Glass 10*91a91ff8SSimon Glassconfig SPL_DM 11*91a91ff8SSimon Glass bool "Enable Driver Model for SPL" 12*91a91ff8SSimon Glass depends on DM && SPL 13*91a91ff8SSimon Glass help 14*91a91ff8SSimon Glass Enable driver model in SPL. You will need to provide a 15*91a91ff8SSimon Glass suitable malloc() implementation. If you are not using the 16*91a91ff8SSimon Glass full malloc() enabled by CONFIG_SYS_SPL_MALLOC_START, 17*91a91ff8SSimon Glass consider using CONFIG_SYS_MALLOC_SIMPLE. In that case you 18*91a91ff8SSimon Glass must provide CONFIG_SYS_MALLOC_F_LEN to set the size. 19*91a91ff8SSimon Glass In most cases driver model will only allocate a few uclasses 20*91a91ff8SSimon Glass and devices in SPL, so 1KB should be enable. See 21*91a91ff8SSimon Glass CONFIG_SYS_MALLOC_F_LEN for more details on how to enable it. 22*91a91ff8SSimon Glass 23*91a91ff8SSimon Glassconfig DM_WARN 24*91a91ff8SSimon Glass bool "Enable warnings in driver model" 25*91a91ff8SSimon Glass help 26*91a91ff8SSimon Glass The dm_warn() function can use up quite a bit of space for its 27*91a91ff8SSimon Glass strings. By default this is disabled for SPL builds to save space. 28*91a91ff8SSimon Glass This will cause dm_warn() to be compiled out - it will do nothing 29*91a91ff8SSimon Glass when called. 30*91a91ff8SSimon Glass depends on DM 31*91a91ff8SSimon Glass default y if !SPL_BUILD 32*91a91ff8SSimon Glass default n if SPL_BUILD 33*91a91ff8SSimon Glass 34*91a91ff8SSimon Glassconfig DM_DEVICE_REMOVE 35*91a91ff8SSimon Glass bool "Support device removal" 36*91a91ff8SSimon Glass help 37*91a91ff8SSimon Glass We can save some code space by dropping support for removing a 38*91a91ff8SSimon Glass device. This is not normally required in SPL, so by default this 39*91a91ff8SSimon Glass option is disabled for SPL. 40*91a91ff8SSimon Glass depends on DM 41*91a91ff8SSimon Glass default y if !SPL_BUILD 42*91a91ff8SSimon Glass default n if SPL_BUILD 43*91a91ff8SSimon Glass 44*91a91ff8SSimon Glassconfig DM_STDIO 45*91a91ff8SSimon Glass bool "Support stdio registration" 46*91a91ff8SSimon Glass help 47*91a91ff8SSimon Glass Normally serial drivers register with stdio so that they can be used 48*91a91ff8SSimon Glass as normal output devices. In SPL we don't normally use stdio, so 49*91a91ff8SSimon Glass we can omit this feature. 50*91a91ff8SSimon Glass depends on DM 51*91a91ff8SSimon Glass default y if !SPL_BUILD 52*91a91ff8SSimon Glass default n if SPL_BUILD 53