From a044661ba335aa68b919d64ccc01c293d46f9d2f Mon Sep 17 00:00:00 2001 From: Otavio Salvador Date: Fri, 23 Aug 2013 11:48:58 -0300 Subject: [PATCH] uboot-config.bbclass: Allow choose of U-Boot config for machine Some machines provide several possible configurations and until now there was no easy way for user to override the default setting. This class provides a system similar to PACKAGECONFIG but for U-Boot. The format is: UBOOT_CONFIG ??= UBOOT_CONFIG[foo] = "config,images" There are two possible parameters: - config: it is used to set UBOOT_MACHINE - images: it is used to append onto IMAGE_FSTYPES Below there's an usage example: ,----[ i.MX6Q SABRE AUTO based example ] | UBOOT_CONFIG ??= "sd" | UBOOT_CONFIG[sd] = "mx6qsabreauto_config,sdcard" | UBOOT_CONFIG[eimnor] = "mx6qsabreauto_eimnor_config" | UBOOT_CONFIG[nand] = "mx6qsabreauto_nand_config,ubifs" | UBOOT_CONFIG[spinor] = "mx6qsabreauto_spinor_config" `---- User can, from local.conf or environment, use UBOOT_CONFIG=nand and override the default setting, as: ,----[ Override example from command line ] | MACHINE=imx6qsabreauto UBOOT_CONFIG=nand bitbake core-image-base `---- (From OE-Core rev: 5dba521611d644357cf0a98d2e30dcf41777c6ef) Signed-off-by: Otavio Salvador Signed-off-by: Richard Purdie --- meta/classes/uboot-config.bbclass | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 meta/classes/uboot-config.bbclass diff --git a/meta/classes/uboot-config.bbclass b/meta/classes/uboot-config.bbclass new file mode 100644 index 0000000..fc37620 --- /dev/null +++ b/meta/classes/uboot-config.bbclass @@ -0,0 +1,39 @@ +# Allow easy override of U-Boot config for a machine +# +# The format to specify it, in the machine, is: +# +# UBOOT_CONFIG ??= +# UBOOT_CONFIG[foo] = "config,images" +# +# Copyright 2013 (C) O.S. Systems Software LTDA. + +addhandler uboot_config_eventhandler +uboot_config_eventhandler[eventmask] = "bb.event.ConfigParsed" +python uboot_config_eventhandler() { + ubootconfigflags = e.data.getVarFlags('UBOOT_CONFIG') + if not ubootconfigflags: + return + + ubootconfig = (e.data.getVar('UBOOT_CONFIG', True) or "").split() + if len(ubootconfig) > 1: + raise bb.parse.SkipPackage('You can only have a single default for UBOOT_CONFIG.') + elif len(ubootconfig) == 0: + raise bb.parse.SkipPackage('You must set a default in UBOOT_CONFIG.') + ubootconfig = ubootconfig[0] + + for f, v in ubootconfigflags.items(): + if f == 'defaultval': + continue + + items = v.split(',') + if items[0] and len(items) > 2: + raise bb.parse.SkipPackage('Only config,images can be specified!') + + if ubootconfig == f: + bb.debug(1, "Setting UBOOT_MACHINE to %s." % items[0]) + e.data.setVar('UBOOT_MACHINE', items[0]) + + if items[1]: + bb.debug(1, "Appending '%s' to IMAGE_FSTYPES." % items[1]) + e.data.appendVar('IMAGE_FSTYPES', ' ' + items[1]) +} -- 2.7.4