[U-Boot] [PATCH 2/2] am335x_evm: Update, document Falcon Mode support

[Peter Korsgaard <jacmet@sunsite.dk>]

>>>>> "Tom" == Tom Rini <trini@ti.com> writes:

 Tom> - Update Falcon Mode support so that the offsets used in eMMC (or a raw
 Tom>   SD card) would allow for enough room for a device tree to be used
 Tom>   rather than an ATAGS blob as well as environment to be saved in eMMC.
 Tom> - Add board/ti/am335x/README which covers a few basic items, and
 Tom>   provides an example of Falcon Mode for eMMC, FAT SD card and NAND.
 Tom> - Round up the size of u-boot.img.raw to match these use-cases, and add
 Tom>   the entries for Falcon Mode to DFU for eMMC, FAT SD cards and NAND
 Tom> - Correct CONFIG_CMD_SPL_WRITE_SIZE size (eraseblocks are 128KiB)

It looks to me like this should be 4 (or 3) seperate commits then?


 Tom> Signed-off-by: Tom Rini <trini@ti.com>
 Tom> ---
 Tom>  board/ti/am335x/README       |  123 ++++++++++++++++++++++++++++++++++++++++++
 Tom>  include/configs/am335x_evm.h |   19 ++++---
 Tom>  2 files changed, 135 insertions(+), 7 deletions(-)
 Tom>  create mode 100644 board/ti/am335x/README

 Tom> diff --git a/board/ti/am335x/README b/board/ti/am335x/README
 Tom> new file mode 100644
 Tom> index 0000000..565f18c
 Tom> --- /dev/null
 Tom> +++ b/board/ti/am335x/README
 Tom> @@ -0,0 +1,123 @@
 Tom> +Summary
 Tom> +=======
 Tom> +
 Tom> +This document covers various features of the 'am335x_evm' build, and some of
 Tom> +the related build targets (am335x_evm_uartN, etc).
 Tom> +
 Tom> +Hardware
 Tom> +========
 Tom> +
 Tom> +The binary produced by this board supports, based on parsing of the EEPROM
 Tom> +doumentd in TI's reference designs:

documented

 Tom> +Note that when we run 'spl export' it will prepare to boot the kernel.
 Tom> +This includes relocation of the uImage from where we loaded it to the entry
 Tom> +point defined in the head.  As these locations overlap by default, it would

header


 Tom> +A further word of warning about using eMMC and partition tables.  When
 Tom> +working with SD cards we can get away with erasing small areas at a time,
 Tom> +however on eMMC we must keep erases aligned to eraseblocks and thus the
 Tom> +first erase we issue will erase the partition table.

Really? I thought eMMC behaved just like SD cards?

 Tom> +# Ensure are able to talk with this mmc device, erase most previous contents

Ensure we are


-- 
Bye, Peter Korsgaard