u-boot.git/arch/arm/cpu, branch v2018.09

ARM: Specify aligned address for secure section instead of using attributes

2018-09-07T13:11:42+00:00

In commit a1274cc94a20 ("ARM: Page align secure section only when it is
executed in situ"), we used output section attributes (the "ALIGN"
keyword after the colon) to specify the alignment requirements. Using
the constant "COMMONPAGE" there was recently broken in binutils 2.31 [1].

Binutils maintainer Alan Modra suggested the former method would still
work. Since both methods achieve the same result, this patch does just
that. This fixes the "reboot after bootm" issue we've been seeing on
sunxi when booting non-secure.

  [1] https://sourceware.org/bugzilla/show_bug.cgi?id=23571

Suggested-by: Alan Modra 
Signed-off-by: Chen-Yu Tsai 
Reviewed-by: Tom Rini 
Acked-by: Jagan Teki

armv8: fsl-layerscape: Update README.falcon for compression

2018-08-23T15:17:35+00:00

Update README.falcon to use "none" for compression property for
ramdisk image to avoid being uncompressed upon loading.

Signed-off-by: York Sun

armv8: layerscape: Enable EHCI access for LS1012A

2018-08-10T17:37:39+00:00

Program Central Security Unit (CSU) to grant access to USB 2.0
controller.

Signed-off-by: Ran Wang 
[YS: rewrite commit message]
Reviewed-by: York Sun

armv8: ls1046a: setup SEC ICIDs and fix up device tree

2018-08-10T17:35:46+00:00

Add support for SEC ICID configuration and apply it for ls1046a.
Also add code to make the necessary device tree fixups.

Reviewed-by: Horia Geantă 
Reviewed-by: Bharat Bhushan 
Signed-off-by: Laurentiu Tudor 
Reviewed-by: York Sun

armv8: ls1046a: setup fman ports ICIDs and device tree

2018-08-10T17:35:42+00:00

Add support for ICID setting of fman ports and the required device
tree fixups.

Reviewed-by: Bharat Bhushan 
Signed-off-by: Laurentiu Tudor 
Reviewed-by: York Sun

armv8: ls1046a: add icid setup for qman portals

2018-08-10T17:35:36+00:00

Add support for ICID setting of qman portals and the required device
tree fixups. Also fix an endiness issue in portal setup code.

Signed-off-by: Laurentiu Tudor 
Reviewed-by: York Sun

armv8: ls1046a: initial icid setup support

2018-08-10T17:35:33+00:00

Add infrastructure for ICID setup and device tree fixup on ARM
platforms. This include basic ICID setup for several devices.

Reviewed-by: Bharat Bhushan 
Signed-off-by: Laurentiu Tudor 
Reviewed-by: York Sun

arm: ls102xa: Fix RGMII phy-connection-type FDT fixup

2018-08-07T21:42:15+00:00

In ft_fixup_enet_phy_connect_type(), use strlen() instead of sizeof()
on the pointer result of phy_string_for_interface(). sizeof() was
returning the size of the pointer (4 bytes), resulting in the
phy-connection-type being set to "rgmi" rather than "rgmii-id".

Signed-off-by: Brendan Shanks 
Cc: York Sun 
Reviewed-by: York Sun

armv8: make SPL exception vectors optional

2018-08-03T23:53:54+00:00

Even though the exception vector table is a fundamental part of the ARM
architecture, U-Boot mostly does not make real use of it, except when
crash dumping. But having it in takes up quite some space, partly due to
the architectural alignment requirement of 2KB. Since we don't take special
care of that, the compiler adds a more or less random amount of padding
space, which increases the image size quite a bit, especially for the SPL.

On a typical Allwinner build this is around 1.5KB of padding, plus 1KB
for the vector table (mostly padding space again), then some extra code
to do the actual handling. This amounts to almost 10% of the maximum image
size, which is quite a lot for a pure debugging feature.

Add a Kconfig symbol to allow the exception vector table to be left out
of the build for the SPL.
For now this is "default y" for everyone, but specific defconfigs,
platforms or .config files can opt out here at will, to mitigate the code
size pressure we see for some SPLs.

Signed-off-by: Andre Przywara

armv8: Reduce exception handling code

2018-08-03T23:53:54+00:00

The arm64 exception handling code is quite big, mostly due to
architectural alignment requirements. Each exception entry spans 32
instructions, which sounds generous, but is too small to fit all of the
save/branch/restore code in there. So at the moment we use only four
instructions, branching into shared save and restore routines.
To not leave the space for those remaining 28 instructions wasted, let's
split the save and restore routines and stuff them into the gaps.
This saves about 250 bytes of code, which is helpful for those tight
SPLs.

Signed-off-by: Andre Przywara