u-boot/board/palmtreo680/Makefile

#
# Palm Treo680 Support
#
# Copyright (C) 2013 Mike Dunn <mikedunn@newsguy.com>
#
# This file is released under the terms of GPL v2 and any later version.
# See the file COPYING in the root directory of the source tree for details.

obj-y	:= palmtreo680.o
pxa: add support for palmtreo680 board This patch adds support for the Palm Treo 680 smartphone. A quick overview of u-boot implementation on the treo 680... The treo 680 has a Diskonchip G4 nand flash chip. This device has a 2k region that maps to the system bus at the reset vector in a NOR-like fashion so that it can be used as the boot device. The phone is shipped with this 2k region configured as write-protected (can't be modified) and programmed with an initial program loader (IPL). At power-up, this IPL loads the contents of two flash blocks to SDRAM and jumps to it. The capacity of the two blocks is not large enough to hold all of u-boot, so a u-boot SPL is used. To conserve flash space, these two blocks and the necessary number of subsequent blocks are programmed with a concatenated spl + u-boot image. That way, the IPL will also load a portion of u-boot proper, and when the spl runs, it relocates the portion of u-boot that the IPL has already loaded, and then resumes loading the remaining part of u-boot before jumping to it. The default_environment is used (CONFIG_ENV_IS_NOWHERE) because I didn't think that having a writable environment was worth the cost of a flash block, although adding it would be straightforward. I abuse the CONFIG_EXTRA_ENV_SETTINGS option to specify the usbtty for the console (CONFIG_SYS_CONSOLE_IS_IN_ENV). Support for the LCD is included, but currently it is only useful for displaying the u-boot splash screen. But if u-boot is built without the usbtty console, it does display the auto-boot progress nicely. Signed-off-by: Mike Dunn <mikedunn@newsguy.com> 2013-06-18 18:08:50 +00:00			`#`
			`# Palm Treo680 Support`
			`#`
			`# Copyright (C) 2013 Mike Dunn <mikedunn@newsguy.com>`
			`#`
			`# This file is released under the terms of GPL v2 and any later version.`
			`# See the file COPYING in the root directory of the source tree for details.`

board: arm: convert makefiles to Kbuild style Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Albert ARIBAUD <albert.u.boot@aribaud.net> Cc: Andreas Bießmann <andreas.devel@googlemail.com> Cc: Stefano Babic <sbabic@denx.de> Cc: Prafulla Wadaskar <prafulla@marvell.com> Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Vipin Kumar <vipin.kumar@st.com> Cc: Tom Warren <twarren@nvidia.com> Cc: Tom Rini <trini@ti.com> 2013-10-21 02:53:37 +00:00			`obj-y := palmtreo680.o`