u-boot.git/common/spl/spl.c, branch v2017.07

spl: armv7m: to keep ARM v7M in thumb mode before booting next image

2017-06-09T01:00:27+00:00

On ARM v7M, the processor will return to ARM mode when executing blx
instruction with bit 0 of the address == 0. Always set it to 1 to stay in thumb
mode.

At present, it is applied only for raw U-Boot. This patch moves it to just
before booting next image. This way armv7m will be in thumb mode for any image
like raw or image with header like zImage or standard U-Boot.

Signed-off-by: Vikas Manocha

bootstage: Support SPL

2017-06-05T18:13:08+00:00

At present bootstage only supports U-Boot proper. But SPL can also consume
boot time so it is useful to have the record start there.

Add bootstage support to SPL. Also support stashing the timing information
when SPL finishes so that it can be picked up and reported by U-Boot
proper. This provides a full boot time record, excluding only the time
taken by the boot ROM.

Signed-off-by: Simon Glass

spl: add support to booting with ATF

2017-05-15T14:38:09+00:00

ATF(ARM Trusted Firmware) is used by ARM arch64 SoCs, find more infomation
about ATF at: https://github.com/ARM-software/arm-trusted-firmware

SPL is considered as BL2 in ATF terminology, it needs to load other parts
of ATF binary like BL31, BL32, SCP-BL30, and BL33(U-Boot). And needs to
prepare the parameter for BL31 which including entry and image information
for all other images. Then the SPL handle PC to BL31 with the parameter,
the BL31 will do the rest of work and at last get into U-Boot(BL33).

This patch needs work with patches from Andre for SPL support multi
binary in FIT.

The entry point of bl31 and bl33 are still using hard code because we
still can not get them from the FIT image information.

Signed-off-by: Kever Yang 
Tested-by: Heiko Stuebner 
Acked-by: Simon Glass 
Reviewed-by: Tom Rini

boot: fdt: Perform arch_fixup_fdt() on the given device tree for falcon boot

2017-05-12T02:21:26+00:00

In single stage bootmode or falcon boot mode, the SPL shall update the
device tree that we load with the normal fixups done via
arch_fixup_fdt(), when possible (ie we have enough information in this
restricted environment to be able to do that still).  This will include
for example updating them memory nodes.

Signed-off-by: Ravi Babu 
[trini: Reword commit message]

spl: reorder the assignment of board info to global data

2017-05-12T02:03:41+00:00

Move the assignment of board info to global data a bit early which is
safe,
so that ram details can be used to enable caches.

Signed-off-by: Lokesh Vutla 
Signed-off-by: Ravi Babu 
Reviewed-by: Lukasz Majewski 
Reviewed-by: Tom Rini

spl: make image arg or fdt blob address reconfigurable

2017-05-08T15:38:40+00:00

At present fdt blob or argument address being passed to kernel is fixed at
compile time using macro CONFIG_SYS_SPL_ARGS_ADDR. FDT blob from
different media like nand, nor flash are copied to the address pointed
by the macro.
The problem is, it makes args/fdt blob compulsory to copy which is not required
in cases like for NOR Flash. This patch removes this limitation.

Signed-off-by: Vikas Manocha

spl: armv7m: keep ARM v7M in thumb mode while jumping to entry point

2017-04-08T13:26:53+00:00

On ARM v7M, the processor will return to ARM mode when executing blx
instruction with bit 0 of the address == 0. Always set it to 1 to stay
in thumb mode.

Similar commit:
f99993c10882f7dc8ec35993d5febe59aac01e6a
Author: Matt Porter 
Date:   Tue May 5 15:00:23 2015 -0400
common/cmd_boot: keep ARM v7M in thumb mode during do_go_exec()

Signed-off-by: Vikas Manocha

spl: Correct call to spl_common_init() with SPL_STACK_R_MALLOC_SIMPLE_LEN

2017-03-21T11:14:17+00:00

Calls to IS_ENABLED() on a non-y/n option will always be false, even
when set.  We can correct this by adding a new bool value that is set
based on the conditions required for SPL_STACK_R_MALLOC_SIMPLE_LEN to be
set instead.

Fixes: 340f418acd11 ("spl: Add spl_early_init()")
Reported-by: Lokesh Vutla 
Signed-off-by: Tom Rini 
---
Changes in v2:
- Fix thinko pointed out by Lokesh

spl: Add option to enable SPL Legacy image support

2017-03-18T18:28:51+00:00

Add a Kconfig option that enables Legacy image support, this allows
boards to explicitly disable this, for instance when needed for
security reasons.

Signed-off-by: Andrew F. Davis 
Reviewed-by: Simon Glass 
Reviewed-by: Tom Rini 
[trini: Move to common/spl/Kconfig]
Signed-off-by: Tom Rini

spl: Convert CONFIG_SPL_ABORT_ON_RAW_IMAGE into a positive option

2017-03-18T18:28:50+00:00

CONFIG_SPL_ABORT_ON_RAW_IMAGE causes SPL to abort and move on when it
encounters RAW images, express this same functionality as a positive
option enabling support for RAW images: CONFIG_SPL_RAW_IMAGE_SUPPORT

Also move uses of this to defconfigs.

Signed-off-by: Andrew F. Davis 
Reviewed-by: Tom Rini 
Reviewed-by: Simon Glass 
[trini: Rework Kconfig logic a little, move to common/spl/Kconfig]
Signed-off-by: Tom Rini