u-boot.git/board/raspberrypi, branch v2016.01

rpi: add support for Raspberry Pi Zero

2015-12-05T23:22:36+00:00

For U-Boot's purposes, at present all we care about is ensuring there's
a model table entry.

Signed-off-by: Stephen Warren

rpi: fix revision scheme parsing

2015-12-05T23:22:36+00:00

The RPi has two different schemes for encoding board revision values.
When adding RPi 2 support, I thought that the conflicting type field
values were to be interpreted based on bcm2835-vs-bcm2836. In fact, the
scheme bit determines the encoding. The RPi Zero uses the bcm2835 yet
uses the new encoding scheme. Fix the code to cater for this correctly.

Signed-off-by: Stephen Warren

rpi: get rid of BCM2835_BOARD_REV_* macros

2015-12-05T23:22:35+00:00

There are two numbering schemes for the RPi revision values; old and new
scheme. The values within each scheme overlap. Hence, it doesn't make
sense to have absolute/global names for the revision IDs. Get rid of the
names and just use the raw revision/type values to set up the array of
per-revision data.

This change makes most sense when coupled with the next change. However,
it's split out so that the mechanical cut/paste is separate from the
logic changes for easier review and problem bisection.

Signed-off-by: Stephen Warren

ARM: rpi: Add CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG support

2015-10-24T17:50:30+00:00

Add CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG support and enable it to set
'board_rev' and 'board_name' envs.
'board_rev' can be used in scripts to determine what board we are running on
and 'board_name' for pretty printing.

Signed-off-by: Guillaume GARDET 

Cc: Stephen Warren 
Acked-by: Stephen Warren

ARM: rpi: add another revision of Raspberry Pi A+

2015-10-19T06:12:25+00:00

Seen this one in the wild. Is labelled "Raspberry Pi Model A+ V1.1,
(C) Raspberry Pi 2014". A standard A+ board, much like the one with
version 0x12, didn't notice any differencies.

Signed-off-by: Lubomir Rintel

Move ALLOC_CACHE_ALIGN_BUFFER() to the new memalign.h header

2015-09-11T21:15:20+00:00

Now that we have a new header file for cache-aligned allocation, we should
move the stack-based allocation macro there also.

Signed-off-by: Simon Glass

ARM: bcm283x: Allocate all mailbox buffers cacheline aligned

2015-08-13T00:47:42+00:00

The mailbox buffer is required to be at least 16 bytes aligned, but for
cache invalidation and/or flush it needs to be cacheline aligned.
Use ALLOC_CACHE_ALIGN_BUFFER for all mailbox buffer allocations.

Signed-off-by: Alexander Stein 
Acked-by: Stephen Warren 
Tested-by: Stephen Warren

ARM: rpi: add a couple more revision IDs

2015-04-13T12:48:36+00:00

According to Gordon Henderson's WiringPi library, there are some more
Pi revision IDs out there. Add support for them.

http://git.drogon.net/?p=wiringPi;a=blob_plain;f=wiringPi/wiringPi.c;hb=5edd177112c99416f68ba3e8c6c4db6ed942e796

At least ID 0x13 is out in the wild:

Reported-by: Chee-Yang Chau 
Signed-off-by: Stephen Warren

ARM: bcm283x: merge BCM2835/BCM2836 directories into mach-bcm283x

2015-03-28T13:03:09+00:00

BCM2835 (used on Raspberry Pi) and BCM2836 (used on Raspberry Pi 2)
are similar enough.  One of the biggest differences is the ARM
processor.  It is reasonable to collect the source files into a
single place, arch/arm/mach-bcm283x/.

Signed-off-by: Masahiro Yamada 
Acked-by: Stephen Warren

ARM: rpi: fix RPi1 board rev detection for warranty bit

2015-03-24T14:52:18+00:00

Apparently the firmware's board rev response includes both the board
revision and some other data even on the RPi1. In particular, the
"warranty bit" is bit 24. We need to mask that out when looking up the
board ID.

Signed-off-by: Stephen Warren