uboot-2021-rebase.git - uboot 2021 rebase, to fix booting on modern SD cards, from https://github.com/fifteenhex/u-boot/tree/am335x_som

Age	Commit message (Collapse)	Author
2013-07-24	Add GPL-2.0+ SPDX-License-Identifier to source files	Wolfgang Denk
	Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2011-01-19	powerpc/8xxx: Add hwconfig APIs to address early parsing used by DDR init	Kumar Gala
	There are several users of the hwconfig APIs (8xxx DDR) before we have the environment properly setup. This causes issues because of the numerous ways the environment might be accessed because of the non-volatile memory it might be stored in. Additionally the access might be so early that memory isn't even properly setup for us. Towards resolving these issues we provide versions of all the hwconfig APIs that can be passed in a buffer to parse and leave it to the caller to determine how to allocate and populate the buffer. We use the _f naming convention for these new APIs even though they are perfectly useable after relocation and the environment being ready. We also now warn if the non-f APIs are called before the environment is ready to allow users to address the issues. Finally, we convert the 8xxx DDR code to utilize the new APIs to hopefully address the issue once and for all. We have the 8xxx DDR code create a buffer on the stack and populate it via getenv_f(). Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Wolfgang Denk <wd@denx.de>
2009-07-16	Add simple hwconfig infrastructure	Anton Vorontsov
	This patch implements simple hwconfig infrastructure: an interface for software knobs to control a hardware. This is very simple implementation, i.e. it is implemented via `hwconfig' environment variable. Later we could write some "hwconfig <enable\|disable\|list>" commands, ncurses interface for Award BIOS-like interface, and frame-buffer interface for AMI GUI[1] BIOS-like interface with mouse support[2]. Current implementation details/limitations: 1. Doesn't support options dependencies and mutual exclusion. We can implement this by integrating apt-get[3] into the u-boot. But I didn't bother yet. 2. Since we don't implement hwconfig command, i.e. we're working with the environement directly, there is no way to tell that toggling a particular option will need a reboot to take an effect. So, for now it's advised to always reboot the target after modifying hwconfig variable. 3. We support hwconfig options with arguments. For example, set hwconfig dr_usb:mode=peripheral,phy_type=ulpi That means: - dr_usb - enable Dual-Role USB controller; - dr_usb:mode=peripheral - USB in Function mode; - dr_usb:phy_type=ulpi - USB should work with ULPI PHYs; The purpose of this simple implementation is to define some internal API and then we can continue improving user experience by adding more mature interface, like hwconfig command with bells and whistles. Or not adding, if we feel that current interface fits its needs. [1] http://en.wikipedia.org/wiki/American_Megatrends [2] Regarding ncurses and GUI with mouse support -- I'm just kidding. [3] The comment regarding apt-get is also a joke, meaning that dependency tracking could be non-trivial. For example, for enabling HW feature X we may need to disable Y, and turn Z into reduced mode (like RMII-only interface for ethernet, no MII). It's quite trivial to implement simple cases though. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by: Kim Phillips <kim.phillips@freescale.com>