[U-Boot] [PATCH 02/12] Remove/update old generic-board documentation and warning

Simon Glass sjg at chromium.org
Sun May 15 02:49:27 CEST 2016


Remove the warning from the Makefile, since boards that do not use generic
board will no longer build. Also update documentation.

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 Makefile                     | 14 ---------
 README                       | 10 -------
 board/sandbox/README.sandbox |  3 +-
 doc/README.fdt-control       |  6 ----
 doc/README.generic-board     | 69 +++++---------------------------------------
 5 files changed, 8 insertions(+), 94 deletions(-)

diff --git a/Makefile b/Makefile
index 293fad0..8478019 100644
--- a/Makefile
+++ b/Makefile
@@ -801,13 +801,6 @@ quiet_cmd_pad_cat = CAT     $@
 cmd_pad_cat = $(cmd_objcopy) && $(append) || rm -f $@
 
 all:		$(ALL-y)
-ifneq ($(CONFIG_SYS_GENERIC_BOARD),y)
-	@echo "===================== WARNING ======================"
-	@echo "Please convert this board to generic board."
-	@echo "Otherwise it will be removed by the end of 2014."
-	@echo "See doc/README.generic-board for further information"
-	@echo "===================================================="
-endif
 ifeq ($(CONFIG_DM_I2C_COMPAT),y)
 	@echo "===================== WARNING ======================"
 	@echo "This board uses CONFIG_DM_I2C_COMPAT. Please remove"
@@ -1257,13 +1250,6 @@ prepare2: prepare3 outputmakefile
 
 prepare1: prepare2 $(version_h) $(timestamp_h) \
                    include/config/auto.conf
-ifeq ($(CONFIG_HAVE_GENERIC_BOARD),)
-ifeq ($(CONFIG_SYS_GENERIC_BOARD),y)
-	@echo >&2 "  Your architecture does not support generic board."
-	@echo >&2 "  Please undefine CONFIG_SYS_GENERIC_BOARD in your board config file."
-	@/bin/false
-endif
-endif
 ifeq ($(wildcard $(LDSCRIPT)),)
 	@echo >&2 "  Could not find linker script."
 	@/bin/false
diff --git a/README b/README
index 88ff837..2cdfb92 100644
--- a/README
+++ b/README
@@ -4043,16 +4043,6 @@ Configuration Settings:
 	If defined, don't allow the -f switch to env set override variable
 	access flags.
 
-- CONFIG_SYS_GENERIC_BOARD
-	This selects the architecture-generic board system instead of the
-	architecture-specific board files. It is intended to move boards
-	to this new framework over time. Defining this will disable the
-	arch/foo/lib/board.c file and use common/board_f.c and
-	common/board_r.c instead. To use this option your architecture
-	must support it (i.e. must select HAVE_GENERIC_BOARD in arch/Kconfig).
-	If you find problems enabling this option on your board please report
-	the problem and send patches!
-
 - CONFIG_OMAP_PLATFORM_RESET_TIME_MAX_USEC (OMAP only)
 	This is set by OMAP boards for the max time that reset should
 	be asserted. See doc/README.omap-reset-time for details on how
diff --git a/board/sandbox/README.sandbox b/board/sandbox/README.sandbox
index fa1842b..9fe3bf1 100644
--- a/board/sandbox/README.sandbox
+++ b/board/sandbox/README.sandbox
@@ -186,8 +186,7 @@ U-Boot sandbox supports these emulations:
 A wide range of commands is implemented. Filesystems which use a block
 device are supported.
 
-Also sandbox uses generic board (CONFIG_SYS_GENERIC_BOARD) and supports
-driver model (CONFIG_DM) and associated commands.
+Also sandbox supports driver model (CONFIG_DM) and associated commands.
 
 
 Linux RAW Networking Bridge
diff --git a/doc/README.fdt-control b/doc/README.fdt-control
index 29fd56a..2913fcb 100644
--- a/doc/README.fdt-control
+++ b/doc/README.fdt-control
@@ -33,12 +33,6 @@ the features of each board in the device tree file, and have a single
 generic source base.
 
 To enable this feature, add CONFIG_OF_CONTROL to your board config file.
-It is currently supported on ARM, x86 and Microblaze - other architectures
-will need to add code to their arch/xxx/lib/board.c file to locate the
-FDT. Alternatively you can enable generic board support on your board
-(with CONFIG_SYS_GENERIC_BOARD) if this is available (as it is for
-PowerPC). For ARM, Tegra and Exynos5 have device trees available for
-common devices.
 
 
 What is a Flat Device Tree?
diff --git a/doc/README.generic-board b/doc/README.generic-board
index 734f1aa..6858c4d 100644
--- a/doc/README.generic-board
+++ b/doc/README.generic-board
@@ -5,29 +5,22 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-DEPRECATION NOTICE FOR arch/<arch>/lib/board.c
-
-For board maintainers: Please submit patches for boards you maintain before
-July 2014, to make them use generic board.
-
-For architecture maintainers: Please submit patches to remove your
-architecture-specific board.c file before October 2014.
-
-
 Background
 ----------
 
-U-Boot has traditionally had a board.c file for each architecture. This has
-introduced quite a lot of duplication, with each architecture tending to do
+U-Boot traditionally had a board.c file for each architecture. This introduced
+quite a lot of duplication, with each architecture tending to do
 initialisation slightly differently. To address this, a new 'generic board
-init' feature was introduced a year ago in March 2013 (further motivation is
+init' feature was introduced in March 2013 (further motivation is
 provided in the cover letter below).
 
+All boards and architectures have moved to this as of mid 2016.
+
 
 What has changed?
 -----------------
 
-The main change is that the arch/<arch>/lib/board.c file is being removed in
+The main change is that the arch/<arch>/lib/board.c file is removed in
 favour of common/board_f.c (for pre-relocation init) and common/board_r.c
 (for post-relocation init).
 
@@ -36,55 +29,6 @@ fields which are common to all architectures. Architecture-specific fields
 have been moved to separate structures.
 
 
-Supported Architectures
-------------------------
-
-If you are unlucky then your architecture may not support generic board.
-The following architectures are supported now:
-
-   arc
-   arm
-   avr32
-   blackfin
-   m68k
-   microblaze
-   mips
-   nios2
-   powerpc
-   sandbox
-   x86
-
-If your architecture is not supported, you need to select
-HAVE_GENERIC_BOARD in arch/Kconfig
-and test it with a suitable board, as follows.
-
-
-Adding Support for your Board
------------------------------
-
-To enable generic board for your board, define CONFIG_SYS_GENERIC_BOARD in
-your board config header file.
-
-Test that U-Boot still functions correctly on your board, and fix any
-problems you find. Don't be surprised if there are no problems - generic
-board has had a reasonable amount of testing with common boards.
-
-
-DeadLine
---------
-
-Please don't take this the wrong way - there is no intent to make your life
-miserable, and we have the greatest respect and admiration for U-Boot users.
-However, with any migration there has to be a period where the old way is
-deprecated and removed. Every patch to the deprecated code introduces a
-potential breakage in the new unused code. Therefore:
-
-Boards or architectures not converted over to general board by the
-end of 2014 may be forcibly changed over (potentially causing run-time
-breakage) or removed.
-
-
-
 Further Background
 ------------------
 
@@ -190,3 +134,4 @@ convenience.
 
 Simon Glass, sjg at chromium.org
 March 2014
+Updated after final removal, May 2016
-- 
2.8.0.rc3.226.g39d4020



More information about the U-Boot mailing list