README: Document current DFU CONFIG options

Add documentation for the current DFU config options.  DFU is a standard
USB device class so more information is available from usb.org

Signed-off-by: Tom Rini <trini@ti.com>
dfu: Support larger than memory transfers.

Previously we didn't support upload/download larger than available
memory.  This is pretty bad when you have to update your root filesystem
for example.

This patch removes that limitation (and the crashes when you transfered
any file larger than 4MB) by making raw image writes be done in chunks
and making file maximum size be configurable.

The sequence number is a 16 bit counter; make sure we handle rollover
correctly. This fixes the wrong transfers for large (> 256MB) images.

Also utilize a variable to handle initialization, so that we don't rely
on just the counter sent by the host.

Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Signed-off-by: Tom Rini <trini@ti.com>
dfu: Change indentation of defines in <dfu.h>

Signed-off-by: Tom Rini <trini@ti.com>
nand: Extend nand_(read|write)_skip_bad with *actual and limit parameters

We make these two functions take a size_t pointer to how much space
was used on NAND to read or write the buffer (when reads/writes happen)
so that bad blocks can be accounted for.  We also make them take an
loff_t limit on how much data can be read or written.  This means that
we can now catch the case of when writing to a partition would exceed
the partition size due to bad blocks.  To do this we also need to make
check_skip_len count not just complete blocks used but partial ones as
well.  All callers of nand_(read|write)_skip_bad are adjusted to call
these with the most sensible limits available.

The changes were started by Pantelis and finished by Tom.

Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Signed-off-by: Tom Rini <trini@ti.com>
cmd_nand.c: Fix CONFIG_CMD_NAND_YAFFS

The flag changed from WITH_INLINE_OOB to WITH_YAFFS_OOB by accident in
418396e.

Signed-off-by: Tom Rini <trini@ti.com>
dfu: NAND specific routines for DFU operation

Support for NAND storage devices to work with the DFU framework.

Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Signed-off-by: Tom Rini <trini@ti.com>
Acked-by: Scott Wood <scottwood@freescale.com>
am335x_evm: Define CONFIG_SYS_CACHELINE_SIZE

drivers/usb/gadget/composite.c requires that this is defined early.

Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Signed-off-by: Tom Rini <trini@ti.com>
Acked-by: Tom Rini <trini@ti.com>
am335x_evm: Add CONFIG_CMD_MTDPARTS and relevant defaults

Signed-off-by: Tom Rini <trini@ti.com>
am335x_evm: Enable DFU for NAND and MMC, provide example alt_infos

- Add CONFIG_DFU_NAND, CONFIG_DFU_MMC
- Set dfu_alt_info_nand, dfu_alt_info_emmc and dfu_alt_info_mmc to show
  working examples for those cases.
- Increase CONFIG_SYS_MAXARGS due to hush parsing bugs that would
  otherwise disallow 'setenv dfu_alt_info ${dfu_alt_info_nand}'.
- Enable CONFIG_FAT_WRITE to allow updating on MMC

Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Signed-off-by: Tom Rini <trini@ti.com>
powerpc/usb: Fix usb device-tree fix-up

Fix USB device-tree fixup to properly handle device-tree fixup and
print appropriate message when wrong/junk "dr_mode" or "phy_type"
are mentioned in hwconfig string

Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
powerpc/lib: fix unsafe register handling in wait_ticks

If watchdog is enabled, the arch/powerpc/lib/ticks.S::wait_ticks() function
calls the function specified by the WATCHDOG_RESET macro.
The wait_ticks function depends on the registers r0, r6 and r7 being
preserved however that is not guaranteed, e.g. if the reset function is a
C function this will probably overwrite r0 and cause an endless loop.

The following patch changes to using r14+r15 instead of r6+r7 (to resemble
what would have been generated by a C compiler) and saves all necessary
registers on the stack.

The patch has been tested on a custom MPC5125 based machine using the 512x
powerpc architecture.

Signed-off-by: Mats Karrman <mats.karrman@tritech.se>
Cc: Wolfgang Denk <wd@denx.de>
Acked-by: Joakim Tjernlund <joakim.tjernlund@transmode.se>
Tested-by: Stefan Roese <sr@denx.de>
Merge branch 'master' of git://git.denx.de/u-boot-usb
Do not call board_early_init_f() twice

Apparently due to a missed rebase conflict resolution
board_early_init_f() is included twice in the list of initialization
functions.

Leave only the first occurrence.
   . built and boot an Exynos 5250 target

Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
ubi: Fix broken cleanup code in attach_by_scanning

The unwind code was not reversing operations correctly and was causing
a hang on any error condition.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
ubi: Expose a few simple functions from the cmd_ubi

Part, Read, and Write functionality that will be used by env_ubi.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
ubi: ubifs: Add documentation for README

Describe the needed CONFIG tokens to enable UBI and UBIFS support.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
ubi: ubifs: Turn off verbose prints

The prints are out of control.  SILENCE!

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
mtd: Make mtdparts work with pre-reloc env

The env in UBI needs to look up the mtd partition as part of relocation,
which happens before relocation.  Make the mtdparts code capable of
working on the default env to start with.

The code tries to set values in the env as well, but again, the env
isn't there yet, so add a check to setenv to not allow sets before the
env is relocated.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
env: Add support for UBI environment

UBI is a better place for the environment on NAND devices because it
handles wear-leveling and bad blocks.

Gluebi is needed in Linux to access the env as an MTD partition.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
env: Add redundant env support to UBI env

Allow the user to specify two UBI volumes to use for the environment

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>