]> git.dujemihanovic.xyz Git - u-boot.git/log
u-boot.git
8 years agoefi_loader: Add MAINTAINERS entry
Alexander Graf [Fri, 4 Mar 2016 00:10:10 +0000 (01:10 +0100)]
efi_loader: Add MAINTAINERS entry

Now that everything's in place, let's add myself as the maintainer for
the efi payload support.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
8 years agoefi_loader: Add README section in README.efi
Alexander Graf [Fri, 4 Mar 2016 00:10:09 +0000 (01:10 +0100)]
efi_loader: Add README section in README.efi

To preserve all cover letter knowledge of the status on UEFI payload
support, let's add some sections to README.efi.

Signed-off-by: Alexander Graf <agraf@suse.de>
v3 -> v4:

  - Add section about config options
  - s/10kb/10KB/

8 years agoefi_loader: Add distro boot script for removable media
Alexander Graf [Wed, 9 Mar 2016 23:26:15 +0000 (00:26 +0100)]
efi_loader: Add distro boot script for removable media

UEFI defines a simple boot protocol for removable media. There we should look
at the EFI (first GPT FAT) partition and search for /efi/boot/bootXXX.efi with
XXX being different between different platforms (x86, x64, arm, aa64, ...).

This patch implements a simple version of that protocol for the default distro
boot script. With this we can automatically boot from valid UEFI enabled
removable media.

Because from all I could see U-Boot by default doesn't deliver device tree
blobs with its firmware, we also need to load the dtb from somewhere. Traverse
the same EFI partition for an fdt file that fits our current board so that
an OS receives a valid device tree when booted automatically.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
8 years agoefi_loader: hook up in build environment
Alexander Graf [Fri, 4 Mar 2016 00:10:07 +0000 (01:10 +0100)]
efi_loader: hook up in build environment

Now that we have all the bits and pieces ready for EFI payload loading
support, hook them up in Makefiles and KConfigs so that we can build.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
[trini: Enable only when we of OF_LIBFDT, disable on kwb and colibri_pxa270]
Signed-off-by: Tom Rini <trini@konsulko.com>
8 years agoarm64: Allow EFI payload code to take exceptions
Alexander Graf [Fri, 4 Mar 2016 00:10:06 +0000 (01:10 +0100)]
arm64: Allow EFI payload code to take exceptions

There are 2 ways an EFI payload could return into u-boot:

  - Callback function
  - Exception

While in EFI payload mode, x18 is owned by the payload and may not contain
a valid pointer to gd, so we need to fix it up. We do that properly for the
payload to callback path already.

This patch also adds gd pointer restoral for the exception path.

Signed-off-by: Alexander Graf <agraf@suse.de>
8 years agoarm64: Allow exceptions to return
Alexander Graf [Fri, 4 Mar 2016 00:10:05 +0000 (01:10 +0100)]
arm64: Allow exceptions to return

Our current arm64 exception handlers all panic and never return to the
exception triggering code.

But if any handler wanted to continue execution after fixups, it would
need help from the exception handling code to restore all registers.

This patch implements that help. With this code, exception handlers on
aarch64 can successfully return to the place the exception happened (or
somewhere else if they modify elr).

Signed-off-by: Alexander Graf <agraf@suse.de>
8 years agoefi_loader: Implement memory allocation and map
Alexander Graf [Fri, 4 Mar 2016 00:10:04 +0000 (01:10 +0100)]
efi_loader: Implement memory allocation and map

The EFI loader needs to maintain views of memory - general system memory
windows as well as used locations inside those and potential runtime service
MMIO windows.

To manage all of these, add a few helpers that maintain an internal
representation of the map the similar to how the EFI API later on reports
it to the application.

For allocations, the scheme is very simple. We basically allow allocations
to replace chunks of previously done maps, so that a new LOADER_DATA
allocation for example can remove a piece of the RAM map. When no specific
address is given, we just take the highest possible address in the lowest
RAM map that fits the allocation size.

Signed-off-by: Alexander Graf <agraf@suse.de>
Tested-by: Simon Glass <sjg@chromium.org>
8 years agoefi_loader: Add "bootefi" command
Alexander Graf [Wed, 9 Mar 2016 23:27:20 +0000 (00:27 +0100)]
efi_loader: Add "bootefi" command

In order to execute an EFI application, we need to bridge the gap between
U-Boot's notion of executing images and EFI's notion of doing the same.

The best path forward IMHO here is to stick completely to the way U-Boot
deals with payloads. You manually load them using whatever method to RAM
and then have a simple boot command to execute them. So in our case, you
would do

  # load mmc 0:1 $loadaddr grub.efi
  # bootefi $loadaddr

which then gets you into a grub shell. Fdt information known to U-boot
via the fdt addr command is also passed to the EFI payload.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
[trini: Guard help text with CONFIG_SYS_LONGHELP]
Signed-off-by: Tom Rini <trini@konsulko.com>
8 years agoefi_loader: Add disk interfaces
Alexander Graf [Fri, 4 Mar 2016 00:10:02 +0000 (01:10 +0100)]
efi_loader: Add disk interfaces

A EFI applications usually want to access storage devices to load data from.

This patch adds support for EFI disk interfaces. It loops through all block
storage interfaces known to U-Boot and creates an EFI object for each existing
one. EFI applications can then through these objects call U-Boot's read and
write functions.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
[trini: Update for various DM changes since posting]
Signed-off-by: Tom Rini <trini@konsulko.com>
8 years agoefi_loader: Add runtime services
Alexander Graf [Fri, 4 Mar 2016 00:10:01 +0000 (01:10 +0100)]
efi_loader: Add runtime services

After booting has finished, EFI allows firmware to still interact with the OS
using the "runtime services". These callbacks live in a separate address space,
since they are available long after U-Boot has been overwritten by the OS.

This patch adds enough framework for arbitrary code inside of U-Boot to become
a runtime service with the right section attributes set. For now, we don't make
use of it yet though.

We could maybe in the future map U-boot environment variables to EFI variables
here.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
8 years agoefi_loader: Add console interface
Alexander Graf [Fri, 4 Mar 2016 00:10:00 +0000 (01:10 +0100)]
efi_loader: Add console interface

One of the basic EFI interfaces is the console interface. Using it an EFI
application can interface with the user. This patch implements an EFI console
interface using getc() and putc().

Today, we only implement text based consoles. We also convert the EFI Unicode
characters to UTF-8 on the fly, hoping that everyone managed to jump on the
train by now.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
8 years agoefi_loader: Add boot time services
Alexander Graf [Fri, 4 Mar 2016 00:09:59 +0000 (01:09 +0100)]
efi_loader: Add boot time services

When an EFI application runs, it has access to a few descriptor and callback
tables to instruct the EFI compliant firmware to do things for it. The bulk
of those interfaces are "boot time services". They handle all object management,
and memory allocation.

This patch adds support for the boot time services and also exposes a system
table, which is the point of entry descriptor table for EFI payloads.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
8 years agoefi_loader: Add PE image loader
Alexander Graf [Fri, 4 Mar 2016 00:09:58 +0000 (01:09 +0100)]
efi_loader: Add PE image loader

EFI uses the PE binary format for its application images. Add support to EFI PE
binaries as well as all necessary bits for the "EFI image loader" interfaces.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
8 years agoinclude/efi_api.h: Add more detailed API definitions
Alexander Graf [Fri, 4 Mar 2016 00:09:57 +0000 (01:09 +0100)]
include/efi_api.h: Add more detailed API definitions

The EFI API header is great, but missing a good chunk of function prototype,
GUID defines and enum declarations.

This patch extends it to cover more of the EFI API. It's still not 100%
complete, but sufficient enough for our EFI payload interface.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
8 years agodisk/part.c: Expose list of available block drivers
Alexander Graf [Fri, 4 Mar 2016 00:09:56 +0000 (01:09 +0100)]
disk/part.c: Expose list of available block drivers

We have a pretty nice and generic interface to ask for a specific block
device. However, that one is still based around the magic notion that
we know the driver name.

In order to be able to write fully generic disk access code, expose the
currently internal list to other source files so that they can scan through
all available block drivers.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
8 years agoarm64: Only allow dcache disabled in SPL builds
Alexander Graf [Fri, 4 Mar 2016 00:09:55 +0000 (01:09 +0100)]
arm64: Only allow dcache disabled in SPL builds

Now that we have an easy way to describe memory regions and enable the MMU,
there really shouldn't be anything holding people back from running with
caches enabled on AArch64. To make sure people catch early if they're missing
on the caching fun, give them a compile error.

Signed-off-by: Alexander Graf <agraf@suse.de>
8 years agoarm64: Remove non-full-va map code
Alexander Graf [Fri, 4 Mar 2016 00:09:54 +0000 (01:09 +0100)]
arm64: Remove non-full-va map code

By now the code to only have a single page table level with 64k page
size and 42 bit address space is no longer used by any board in tree,
so we can safely remove it.

To clean up code, move the layerscape mmu code to the new defines,
removing redundant field definitions.

Signed-off-by: Alexander Graf <agraf@suse.de>
8 years agohikey: Add MMU tables
Alexander Graf [Fri, 4 Mar 2016 00:09:53 +0000 (01:09 +0100)]
hikey: Add MMU tables

The hikey runs with dcache disabled today. There really should be no reason
not to use caches on AArch64, so let's add MMU definitions and enable the
dcache.

Signed-off-by: Alexander Graf <agraf@suse.de>
8 years agodwmmc: Increase retry timeout
Alexander Graf [Fri, 4 Mar 2016 00:09:52 +0000 (01:09 +0100)]
dwmmc: Increase retry timeout

When enable dcache on HiKey, we're running into MMC command timeouts
because our retry loop is now faster than the eMMC (or an external SD
card) can answer.

Increase the retry count to the same as the timeout value for status
reports.

The real fix is obviously to not base this whole thing on a cycle counter
but on real wall time, but that would be slightly more intrusive.

Signed-off-by: Alexander Graf <agraf@suse.de>
8 years agovexpress64: Add MMU tables
Alexander Graf [Fri, 4 Mar 2016 00:09:51 +0000 (01:09 +0100)]
vexpress64: Add MMU tables

There's no good excuse for running with caches disabled on AArch64,
so let's just move the vexpress64 target to enable the MMU and run
with caches on.

Signed-off-by: Alexander Graf <agraf@suse.de>
8 years agotegra: Replace home grown mmu code with generic table approach
Alexander Graf [Fri, 4 Mar 2016 00:09:50 +0000 (01:09 +0100)]
tegra: Replace home grown mmu code with generic table approach

Now that we have nice table driven page table creating code that gives
us everything we need, move to that.

Signed-off-by: Alexander Graf <agraf@suse.de>
8 years agozymqmp: Replace home grown mmu code with generic table approach
Alexander Graf [Fri, 4 Mar 2016 00:09:49 +0000 (01:09 +0100)]
zymqmp: Replace home grown mmu code with generic table approach

Now that we have nice table driven page table creating code that gives
us everything we need, move to that.

Signed-off-by: Alexander Graf <agraf@suse.de>
8 years agothunderx: Move mmu table into board file
Alexander Graf [Fri, 4 Mar 2016 00:09:48 +0000 (01:09 +0100)]
thunderx: Move mmu table into board file

The MMU range table can vary depending on things we may only find
out at runtime. While the very simple ThunderX variant does not
change, other boards will, so move the definition from a static
entry in a header file to the board file.

Signed-off-by: Alexander Graf <agraf@suse.de>
8 years agoarm64: Make full va map code more dynamic
Alexander Graf [Fri, 4 Mar 2016 00:09:47 +0000 (01:09 +0100)]
arm64: Make full va map code more dynamic

The idea to generate our pages tables from an array of memory ranges
is very sound. However, instead of hard coding the code to create up
to 2 levels of 64k granule page tables, we really should just create
normal 4k page tables that allow us to set caching attributes on 2M
or 4k level later on.

So this patch moves the full_va mapping code to 4k page size and
makes it fully flexible to dynamically create as many levels as
necessary for a map (including dynamic 1G/2M pages). It also adds
support to dynamically split a large map into smaller ones when
some code wants to set dcache attributes.

With all this in place, there is very little reason to create your
own page tables in board specific files.

Signed-off-by: Alexander Graf <agraf@suse.de>
8 years agoarm64: Disable TTBR1 maps in EL1
Alexander Graf [Fri, 4 Mar 2016 00:09:46 +0000 (01:09 +0100)]
arm64: Disable TTBR1 maps in EL1

When running in EL1, AArch64 knows two page table maps. One with addresses
that start with all zeros (TTBR0) and one with addresses that start with all
ones (TTBR1).

In U-Boot we don't care about the high up maps, so just disable them to ensure
we don't walk an invalid page table by accident.

Reported-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
8 years agothunderx: Calculate TCR dynamically
Alexander Graf [Fri, 4 Mar 2016 00:09:45 +0000 (01:09 +0100)]
thunderx: Calculate TCR dynamically

Based on the memory map we can determine a lot of hard coded fields of
TCR, like the maximum VA and max PA we want to support. Calculate those
dynamically to reduce the chance for pit falls.

Signed-off-by: Alexander Graf <agraf@suse.de>
8 years agokc1: Clear reboot mode garbage on cold reset
Paul Kocialkowski [Sat, 27 Feb 2016 18:19:15 +0000 (19:19 +0100)]
kc1: Clear reboot mode garbage on cold reset

Reboot mode garbage is found on cold reset and might be seen as valid on the
next warm reset, thus it has to be cleared on cold reset.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agokc1: Power off when the power on reason is not a valid one
Paul Kocialkowski [Sat, 27 Feb 2016 18:19:14 +0000 (19:19 +0100)]
kc1: Power off when the power on reason is not a valid one

Some power on reasons are not desirable (e.g. too short press on the power
button), battery plug. Thus, power off the device when one of those occurs.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agoinput: TWL6030 input support for power button, USB and charger
Paul Kocialkowski [Sat, 27 Feb 2016 18:19:13 +0000 (19:19 +0100)]
input: TWL6030 input support for power button, USB and charger

This adds support for detecting a few inputs exported by the TWL6030.
Currently-supported inputs are the power button, USB and charger presence.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agopower: twl6030: Power off support
Paul Kocialkowski [Sat, 27 Feb 2016 18:19:12 +0000 (19:19 +0100)]
power: twl6030: Power off support

This adds support for powering off (the omap SoC) from the twl6030.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agopower: twl6030: Remove ifdef around the code
Paul Kocialkowski [Sat, 27 Feb 2016 18:19:11 +0000 (19:19 +0100)]
power: twl6030: Remove ifdef around the code

The TWL6030 power driver is only built when CONFIG_TWL6030_POWER is selected,
thus there is no reason to wrap the code with ifdef.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agokc1: Boot to bootloader (fastboot) on ID pin pull-up
Paul Kocialkowski [Sat, 27 Feb 2016 18:19:10 +0000 (19:19 +0100)]
kc1: Boot to bootloader (fastboot) on ID pin pull-up

USB ID pin pull-up indicates factory (fastboot) cable detection.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agokc1: OMAP4 reboot mode support
Paul Kocialkowski [Sat, 27 Feb 2016 18:19:09 +0000 (19:19 +0100)]
kc1: OMAP4 reboot mode support

This adds support for the omap4 reboot mode mechanism and exports the reboot
mode via an environment variable, that is used in the boot command to make it
possible to boot from the recovery partition or fastboot.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agoomap4: Check warm reset for reboot mode validity
Paul Kocialkowski [Sat, 27 Feb 2016 18:19:08 +0000 (19:19 +0100)]
omap4: Check warm reset for reboot mode validity

Since the SAR registers are filled with garbage on cold reset, this checks for a
warm reset to assert the validity of reboot mode.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agoomap4: Reboot mode support
Paul Kocialkowski [Sat, 27 Feb 2016 18:19:07 +0000 (19:19 +0100)]
omap4: Reboot mode support

Reboot mode is written to SAR memory before reboot in the form of a string.

This mechanism is supported on OMAP4 by various TI kernels.

It is up to each board to make use of this mechanism or not.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agokc1: MUSB USB controller and fastboot USB gadget support
Paul Kocialkowski [Sat, 27 Feb 2016 18:19:06 +0000 (19:19 +0100)]
kc1: MUSB USB controller and fastboot USB gadget support

This adds support for the MUSB USB dual-role controller in peripheral mode,
with configuration options for the fastboot USB gadget.

At this point, flashing the internal eMMC is support.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agousb: musb-new: omap2430: OMAP4 MUSB USB controller support
Paul Kocialkowski [Sat, 27 Feb 2016 18:19:05 +0000 (19:19 +0100)]
usb: musb-new: omap2430: OMAP4 MUSB USB controller support

This adds support for the OMAP4 MUSB USB controller, with a matching Linux
compat definition, TWL6030 USB device setup and USBOTGHS register setup.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agopower: twl6030: Clear VUSB_IN_PMID bit on USB device setup
Paul Kocialkowski [Sat, 27 Feb 2016 18:19:04 +0000 (19:19 +0100)]
power: twl6030: Clear VUSB_IN_PMID bit on USB device setup

When booting from USB, the bootrom sets the VUSB_IN_PMID bit of the MISC2
register of the TWL6030. However, U-Boot sets the VUSB_IN_VSYS bit to enable
VBUS input. As both bits are contradictory, enabling both disables the input,
according to the TWL6030 TRM.

Thus, we need to clear the VUSB_IN_PMID bit in case of an USB boot (which could
just as well be a memory boot after USB timed out).

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agopower: twl6030: Configure VUSB voltage on USB device setup
Paul Kocialkowski [Sat, 27 Feb 2016 18:19:03 +0000 (19:19 +0100)]
power: twl6030: Configure VUSB voltage on USB device setup

This explicitly sets VUSB voltage to 3.3V when enabling USB.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agoomap4: Properly enable USB PHY clocks
Paul Kocialkowski [Sat, 27 Feb 2016 18:19:02 +0000 (19:19 +0100)]
omap4: Properly enable USB PHY clocks

This correctly enables the USB PHY clocks, by enabling CM_ALWON_USBPHY_CLKCTRL
and correctly setting CM_L3INIT_USBPHY_CLKCTRL's value.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agoomap-common: clocks-common: Setup USB DPLL when MUSB is in use
Paul Kocialkowski [Sat, 27 Feb 2016 18:19:01 +0000 (19:19 +0100)]
omap-common: clocks-common: Setup USB DPLL when MUSB is in use

On (at least) OMAP4, the USB DPLL is required to be setup for the internal PHY
to work properly. The internal PHY is used by default with the MUSB USB OTG
controller.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agoAmazon Kindle Fire (first generation) codename kc1 support
Paul Kocialkowski [Sat, 27 Feb 2016 18:19:00 +0000 (19:19 +0100)]
Amazon Kindle Fire (first generation) codename kc1 support

The Amazon Kindle Fire (first generation) codename kc1 is a tablet that was
released by Amazon back in 2011.

It is using an OMAP4430 SoC GP version, which allows running U-Boot and the
U-Boot SPL from the ground up.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agoomap4: Move i2c clocks enable to enable_basic_clocks
Paul Kocialkowski [Sat, 27 Feb 2016 18:18:59 +0000 (19:18 +0100)]
omap4: Move i2c clocks enable to enable_basic_clocks

I2C is often enabled withing the U-Boot SPL, thus those clocks are required to
be enabled early (especially when the bootrom doesn't enable them for us).

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agoomap4: Remove duplicate CM_L3INIT_USBPHY_CLKCTRL reference and whitespace
Paul Kocialkowski [Sat, 27 Feb 2016 18:18:58 +0000 (19:18 +0100)]
omap4: Remove duplicate CM_L3INIT_USBPHY_CLKCTRL reference and whitespace

This removes a duplicate reference to CM_L3INIT_USBPHY_CLKCTRLin
enable_basic_uboot_clocks. Also, a doubled whitespace is removed.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agoomap-common: Remove deprecated arch_cpu_init code
Paul Kocialkowski [Sat, 27 Feb 2016 18:18:57 +0000 (19:18 +0100)]
omap-common: Remove deprecated arch_cpu_init code

save_omap_boot_params is called from spl_board_init in the SPL context. Thus,
there is no reason to duplicate that call on arch_cpu_init.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agoomap-common: Rename set_muxconf_regs_essential to set_muxconf_regs
Paul Kocialkowski [Sat, 27 Feb 2016 18:18:56 +0000 (19:18 +0100)]
omap-common: Rename set_muxconf_regs_essential to set_muxconf_regs

There is no distinction between essential and non-essential mux configuration,
so it doesn't make sense to have an "essential" prefix.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agoomap4: Export jedec sdram timings
Paul Kocialkowski [Sat, 27 Feb 2016 18:18:55 +0000 (19:18 +0100)]
omap4: Export jedec sdram timings

Individual boards might provide their own emif_get_device_timings function and
use the jedec timings in their own way, hence those have to be exported.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agoomap4: Export elpidia sdram timings
Paul Kocialkowski [Sat, 27 Feb 2016 18:18:54 +0000 (19:18 +0100)]
omap4: Export elpidia sdram timings

Individual boards might provide their own emif_get_device_timings function and
use the elpidia timings in their own way, hence those have to be exported.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agoomap4: Export elpidia sdram device details
Paul Kocialkowski [Sat, 27 Feb 2016 18:18:53 +0000 (19:18 +0100)]
omap4: Export elpidia sdram device details

Individual boards might provide their own emif_get_device_details function and
use elpidia device details in their own way, hence those have to be exported.

This also wraps existing definitions with the proper ifdef logic.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agoomap_hsmmc: Board-specific TWL6030 MMC power initialization
Paul Kocialkowski [Sat, 27 Feb 2016 18:18:52 +0000 (19:18 +0100)]
omap_hsmmc: Board-specific TWL6030 MMC power initialization

Boards using the TWL6030 regulator may not all use the LDOs the same way.
Some might also not use MMC1 at all, so VMMC would't have to be enabled.

This delegates TWL6030 MMC power initializations to board-specific functions,
that may still call twl6030_power_mmc_init for the default behavior.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agopower: twl6030: Device-index-specific MMC power initialization
Paul Kocialkowski [Sat, 27 Feb 2016 18:18:51 +0000 (19:18 +0100)]
power: twl6030: Device-index-specific MMC power initialization

Not every device has multiple MMC slots available, so it makes sense to enable
only the required LDOs for the available slots. Generic code in omap_hsmmc will
enable both VMMC and VAUX1, in doubt.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agopower: twl6030: Enable VAUX1 for eMMC power, depending on BOOT2 value
Paul Kocialkowski [Sat, 27 Feb 2016 18:18:50 +0000 (19:18 +0100)]
power: twl6030: Enable VAUX1 for eMMC power, depending on BOOT2 value

This enables the VAUX1 supply, used for eMMC power in standard configurations.
Its voltage is determined by the value of the BOOT2 pin of the TWL6030.

Note that the TWL6030 might already have enabled this regulator at startup
(depending on the value of the BOOT3 pin of the TWL6030), according to the
TWL6030 datasheet.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agopower: twl6030: Some more explicit registers and values definitions
Paul Kocialkowski [Sat, 27 Feb 2016 18:18:49 +0000 (19:18 +0100)]
power: twl6030: Some more explicit registers and values definitions

This makes the twl6030 mmc and usb-related power registers and values
definitions more explicit and clear and adds prefixes to them.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
8 years agosniper: Clear reboot mode garbage on cold reset
Paul Kocialkowski [Sat, 27 Feb 2016 18:26:44 +0000 (19:26 +0100)]
sniper: Clear reboot mode garbage on cold reset

Reboot mode garbage is found on cold reset and might be seen as valid on the
next warm reset, thus it has to be cleared on cold reset.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agosniper: Get rid of reset_misc
Paul Kocialkowski [Sat, 27 Feb 2016 18:26:43 +0000 (19:26 +0100)]
sniper: Get rid of reset_misc

There is no need to set the reboot mode to a particular value prior to reboot,
since valid values will have been caught and cleared earlier.

In addition, this breaks the reboot-bootloader fastboot call, by overriding the
required value for fastboot.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoomap3: Use a define for reboot reason offset
Paul Kocialkowski [Sat, 27 Feb 2016 18:26:42 +0000 (19:26 +0100)]
omap3: Use a define for reboot reason offset

This introduces a define for the offset to the reboot reason, rather than
hardcoding it.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoomap3: String-based reboot mode handling
Paul Kocialkowski [Sat, 27 Feb 2016 18:26:41 +0000 (19:26 +0100)]
omap3: String-based reboot mode handling

This switches reboot mode handling to a string-based interface, that allows more
flexibility to set a common interface with the next generations of OMAP devices.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agospi: omap3: Fix multiple definition of 'priv'
Jagan Teki [Tue, 15 Mar 2016 18:26:33 +0000 (23:56 +0530)]
spi: omap3: Fix multiple definition of 'priv'

Global definition of priv seems no-sense to use it
for non-dm case and pass the pointer to functions
which are common to both dm and non-dm.

So, fix this by removing omap3_spi_slave from non-dm
and make visible to omap3_spi_priv for both dm and non-dm.

Cc: Christophe Ricard <christophe-h.ricard@st.com>
Reported-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Jagan Teki <jteki@openedev.com>
8 years agoMerge branch 'master' of git://git.denx.de/u-boot-video
Tom Rini [Tue, 15 Mar 2016 12:01:17 +0000 (08:01 -0400)]
Merge branch 'master' of git://git.denx.de/u-boot-video

8 years agoMerge branch 'master' of git://git.denx.de/u-boot-spi
Tom Rini [Tue, 15 Mar 2016 12:01:04 +0000 (08:01 -0400)]
Merge branch 'master' of git://git.denx.de/u-boot-spi

8 years agoMerge git://git.denx.de/u-boot-dm
Tom Rini [Mon, 14 Mar 2016 23:21:44 +0000 (19:21 -0400)]
Merge git://git.denx.de/u-boot-dm

8 years agoMerge git://git.denx.de/u-boot-marvell
Tom Rini [Mon, 14 Mar 2016 23:21:35 +0000 (19:21 -0400)]
Merge git://git.denx.de/u-boot-marvell

8 years agoarm64: define _image_binary_end to fix SPL_OF_CONTROL
Masahiro Yamada [Tue, 8 Mar 2016 11:34:44 +0000 (20:34 +0900)]
arm64: define _image_binary_end to fix SPL_OF_CONTROL

To make SPL_OF_CONTROL work on ARM64 SoCs, _image_binary_end must be
defined in the linker script.

 LD      spl/u-boot-spl
lib/built-in.o: In function `fdtdec_setup':
lib/fdtdec.c:1186: undefined reference to `_image_binary_end'
lib/fdtdec.c:1186: undefined reference to `_image_binary_end'
make[1]: *** [spl/u-boot-spl] Error 1
make: *** [spl/u-boot-spl] Error 2

Note:
CONFIG_SPL_SEPARATE_BSS must be defined as well on ARM64 SoCs.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: DRA72-evm: Update mux and VIRTUAL/MANUAL mode timings
Lokesh Vutla [Tue, 8 Mar 2016 04:40:20 +0000 (10:10 +0530)]
ARM: DRA72-evm: Update mux and VIRTUAL/MANUAL mode timings

All the mux configurations needs to be done as part of the IODelay
sequence to avoid glitch. Adding all the mux configuration, MANUAL/VIRTUAL
mode configuration as needed for DRA72-evm.

Also update the mux for SD card detect on DRA74-evm.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: DRA7-evm: Update memory info in banks
Lokesh Vutla [Tue, 8 Mar 2016 03:48:09 +0000 (09:18 +0530)]
ARM: DRA7-evm: Update memory info in banks

Updating the memory banks properly so that DT is populated accordingly.
And updating this only after DDR is properly detected by eeprom, so that
git bisect is still maintained.

Acked-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
8 years agoARM: DRA7: EMIF: Add 4GB DDR settings
Lokesh Vutla [Tue, 8 Mar 2016 03:48:08 +0000 (09:18 +0530)]
ARM: DRA7: EMIF: Add 4GB DDR settings

The REVH and later versions of DRA7-evm uses MICRON MT41K512M16HA-125 memory
chips which is of size 4GB(2GB on EMIF1 and 2GB on EMIF2). Add support for the
same.

Acked-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
8 years agoARM: DRA7: configs: Prepare for detecting memory > 2GB
Lokesh Vutla [Tue, 8 Mar 2016 03:48:07 +0000 (09:18 +0530)]
ARM: DRA7: configs: Prepare for detecting memory > 2GB

Enable configs that are required for detecting memory > 2GB.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
8 years agoARM: DRA7: Move emif settings to board specific files
Lokesh Vutla [Tue, 8 Mar 2016 03:48:06 +0000 (09:18 +0530)]
ARM: DRA7: Move emif settings to board specific files

The newer versions of DRA7 boards has EEPROM populated with DDR
size specified in it. Moving DRA7 specific emif related settings
to board files so that emif settings can be identified based on EEPROM.

Acked-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
8 years agoARM: DRA7: Enable EEPROM support
Lokesh Vutla [Tue, 8 Mar 2016 03:48:05 +0000 (09:18 +0530)]
ARM: DRA7: Enable EEPROM support

Enable EEPROM support for DRA74-evm.

Acked-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
8 years agoti: common: dra7: Add standard access for board description EEPROM
Lokesh Vutla [Tue, 8 Mar 2016 03:48:04 +0000 (09:18 +0530)]
ti: common: dra7: Add standard access for board description EEPROM

DRA7 EVM revH and later EVMs have EEPROM populated that can contain board
description information such as name, revision, DDR definition, etc. Adding
support for this EEPROM format.

Acked-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
8 years agoARM: AM57xx: Update EMIF registers
Lokesh Vutla [Tue, 8 Mar 2016 03:41:35 +0000 (09:11 +0530)]
ARM: AM57xx: Update EMIF registers

There are certain EMIF timing failures seen on the some x15 boards. Updating
the EMIF settings to get rid of these timing failures.

Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
8 years agoARM: Various: Future-proof serial platdata
Adam Ford [Tue, 8 Mar 2016 03:08:49 +0000 (21:08 -0600)]
ARM: Various: Future-proof serial platdata

A few boards still use ns16550_platdata structures, but assume the structure
is going to be in a specific order. By explicitly naming each entry,
this should also help 'future-proof' in the event the structure changes.

Tested on the Logic PD Torpedo + Wireless.

I only changed a handful of devices that used the same syntax as the Logic
board.  Appologies if I missed one or stepped on toes.  Thanks to Derald Woods
and Alexander Graf.

Signed-off-by: Adam Ford <aford173@gmail.com>
V6: Add fix to arch/arm/cpu/armv7/am33xx/board.c

V5: Add fix to arch/arm/cpu/arm926ejs/lpc32xx/devices.c

V4: Fix subject heading

V3: Remove  reg_offset out in all the structs. It was reverted out, and and if
it did exist, it would get initialized to 0 by default.

V2: I hastily copy-pasted the boards without looking at the UART number.
This addresses 3 boards that use UART3 and not UART1.
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
8 years agoARM: OMAP4+: Allow arch specfic code to use early DM
Lokesh Vutla [Mon, 7 Mar 2016 09:19:54 +0000 (14:49 +0530)]
ARM: OMAP4+: Allow arch specfic code to use early DM

Early system initialization is being done before initf_dm is being called
in U-Boot. Then system will fail to boot if any of the DM enabled driver
is being called in this system initialization code. So, rearrange the
code a bit so that DM enabled drivers can be called during early system
initialization.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: DRA7: emif: Enable interleaving for higher address space
Lokesh Vutla [Sat, 5 Mar 2016 12:02:31 +0000 (17:32 +0530)]
ARM: DRA7: emif: Enable interleaving for higher address space

Given that DRA7/OMAP5 SoCs can support more than 2GB of memory,
enable interleaving for this higher memory to increase performance.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: DRA7: emif: Check for enable bits before updating leveling output
Lokesh Vutla [Sat, 5 Mar 2016 12:02:30 +0000 (17:32 +0530)]
ARM: DRA7: emif: Check for enable bits before updating leveling output

Read and write leveling can be enabled independently. Check for these
enable bits before updating the read and write leveling output values.
This will allow to use the combination of software and hardware leveling.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: DRA7: emif: Fix DDR init sequence during warm reset
Lokesh Vutla [Sat, 5 Mar 2016 12:02:29 +0000 (17:32 +0530)]
ARM: DRA7: emif: Fix DDR init sequence during warm reset

Commit (20fae0a - ARM: DRA7: DDR: Enable SR in Power Management Control)
enables Self refresh mode by default and during warm reset the EMIF
contents are preserved. After warm reset EMIF sees that it is idle and
puts DDR in self-refresh. When in SR, leveling operations cannot be done
as DDR can only accept SR exit command, so its hanging during warm reset.
In order to fix this reset the power management control register before
EMIF initialization if it is a warm reset.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: DRA7: emif: Fix updating of refresh ctrl shadow
Lokesh Vutla [Sat, 5 Mar 2016 12:02:28 +0000 (17:32 +0530)]
ARM: DRA7: emif: Fix updating of refresh ctrl shadow

On DRA7, refresh ctrl shadow should be updated with
the final value.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agodm: omap_timer: Fix conversion of address to a pointer
Lokesh Vutla [Sat, 5 Mar 2016 11:10:32 +0000 (16:40 +0530)]
dm: omap_timer: Fix conversion of address to a pointer

OMAP timer driver directly typecasts fdt_addr_t to a pointer. This is
not strictly correct, as it gives a build warning when fdt_addr_t is u64.
So, use map_physmem for a proper typecasts.

This is inspired by commit 167efe01bc5a9 ("dm: ns16550: Use an address
instead of a pointer for the uart base")

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: keystone2: use detected ddr3a size
Vitaly Andrianov [Fri, 4 Mar 2016 16:36:43 +0000 (10:36 -0600)]
ARM: keystone2: use detected ddr3a size

Because KS2 u-boot works in 32 bit address space the existing ram_size
global data field cannot be used. The maximum, which the get_ram_size()
can detect is 2GB only. The ft_board_setup() needs the actual ddr3 size
to fix up dtb.

This commit introduces the ddr3_get_size() which uses SPD data to
calculate the ddr3 size. This function replaces the "ddr3_size"
environment variable, which was used to get the SODIMM size.

For platforms, which don't have SODIMM with SPD and ddr3 is populated to
a board a simple ddr3_get_size function that returns ddr3 size has to be
implemented. See hardware-k2l.h

Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: keystone2: use SPD info to configure K2HK and K2E DDR3
Vitaly Andrianov [Fri, 4 Mar 2016 16:36:42 +0000 (10:36 -0600)]
ARM: keystone2: use SPD info to configure K2HK and K2E DDR3

This commit replaces hard-coded EMIF and PHY DDR3 configurations for
predefined SODIMMs to a calculated configuration. The SODIMM parameters
are read from SODIMM's SPD and used to calculated the configuration.

The current commit supports calculation for DDR3 with 1600MHz and 1333MHz
only.

Signed-off-by: Vitaly Andrianov <vitalya@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: keystone2: K2G: Add support for different arm/device speeds
Lokesh Vutla [Fri, 4 Mar 2016 16:36:41 +0000 (10:36 -0600)]
ARM: keystone2: K2G: Add support for different arm/device speeds

The maximum device and arm speeds can be determined by reading
EFUSE_BOOTROM register. As there is already a framework for reading this
register, adding support for all possible speeds on k2g devices.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: keystone2: Allow for board specific speed definitions
Lokesh Vutla [Fri, 4 Mar 2016 16:36:40 +0000 (10:36 -0600)]
ARM: keystone2: Allow for board specific speed definitions

Its not compulsory that speed definition should be same on EFUSE_BOOTROM
register for all keystone 2 devices. So, allow for board specific
speed definitions.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: keystone2: K2G: power-off DSP during boot
Suman Anna [Fri, 4 Mar 2016 16:36:39 +0000 (10:36 -0600)]
ARM: keystone2: K2G: power-off DSP during boot

The DSPs are powered on by default upon a Power ON reset, and
they are powered off on current Keystone 2 SoCs - K2HK, K2L, K2E
during the boot in u-boot. This is not functional on K2G though.
Extend the existing DSP power-off support to the only DSP present
on K2G. Do note that the PSC clock domain module id for DSP on K2G
differs from that of previous Keystone2 SoCs.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: keystone2: Use macro for DSP GEM power domain
Suman Anna [Fri, 4 Mar 2016 16:36:38 +0000 (10:36 -0600)]
ARM: keystone2: Use macro for DSP GEM power domain

Define a macro for the DSP GEM power domain id number and
use it instead of a hard-coded number in the code that
disables all the DSPs on various Keystone2 SoCs.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoinclude/crc.h: Remove unreferenced cyg_xxx() prototypes
Stefan Roese [Thu, 3 Mar 2016 08:34:13 +0000 (09:34 +0100)]
include/crc.h: Remove unreferenced cyg_xxx() prototypes

These cyg_ prototypes are not referenced anywhere in current mainline
U-Boot. So lets remove them.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agolib/crc16.c: Rename cyg_crc16() to crc16_ccitt() and add crc start value
Stefan Roese [Thu, 3 Mar 2016 08:34:12 +0000 (09:34 +0100)]
lib/crc16.c: Rename cyg_crc16() to crc16_ccitt() and add crc start value

The original name of this function is unclear. This patch renames this
CRC16 function to crc16_ccitt() matching its name with its
implementation.

To make the usage of this function more flexible, lets add the CRC start
value as parameter to this function. This way it can be used by other
functions requiring different start values than 0 as well.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agolib/crc16.c: Coding-style cleanup
Stefan Roese [Thu, 3 Mar 2016 08:34:11 +0000 (09:34 +0100)]
lib/crc16.c: Coding-style cleanup

lib/crc16.c is changed to match the common U-Boot coding-style.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agocommon: image-fit: Fix load and entry addresses in FIT image
York Sun [Mon, 29 Feb 2016 23:48:41 +0000 (15:48 -0800)]
common: image-fit: Fix load and entry addresses in FIT image

FIT image supports more than 32 bits in addresses by using #address-cell
field. Fixing 64-bit support by using this field.

Signed-off-by: York Sun <york.sun@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
8 years agocommon: image-fit: Use a common function to get address
York Sun [Mon, 29 Feb 2016 23:48:40 +0000 (15:48 -0800)]
common: image-fit: Use a common function to get address

FIT image supports load address and entry address. Getting these
addresses can use a common function.

Signed-off-by: York Sun <york.sun@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
8 years agoarm: Add support for LEGO MINDSTORMS EV3
David Lechner [Fri, 26 Feb 2016 06:46:07 +0000 (00:46 -0600)]
arm: Add support for LEGO MINDSTORMS EV3

This is based on the davinci da850evm. It can boot from either the
on-board 16MB flash or from a microSD card. It also reads board
information from an I2C EEPROM.

The EV3 itself initally boots from write-protected EEPROM, so no
u-boot SPL is needed.

Signed-off-by: David Lechner <david@lechnology.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoconfigs: k2g_evm: Add TI power processor support
Nishanth Menon [Thu, 25 Feb 2016 18:53:47 +0000 (12:53 -0600)]
configs: k2g_evm: Add TI power processor support

Enable support for PMMC the TI power processor on K2G. This processor
manages all power management related activities on the SoC and and
allows the Operating Systems on compute processors such as ARM, DSP to
offload the power logic away into the power processor.

Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: dts: k2g: Add support for PMMC
Nishanth Menon [Thu, 25 Feb 2016 18:53:46 +0000 (12:53 -0600)]
ARM: dts: k2g: Add support for PMMC

Enable support for PMMC the TI power processor on K2G. This processor
manages all power management related activities on the SoC and and
allows the Operating Systems on compute processors such as ARM, DSP to
offload the power logic away into the power processor. U-boot just has a
load responsibility, hence the view of the hardware from a bootloader
perspective is different from the view of hardware from a Operating
System perspective. While bootloader just loads up the firmware,
Operating Systems look at the resultant system as "hardware".

Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoremoteproc: Add support for TI power processor
Nishanth Menon [Thu, 25 Feb 2016 18:53:45 +0000 (12:53 -0600)]
remoteproc: Add support for TI power processor

Many TI System on Chip (SoC) solutions do have a dedicated
microcontroller for doing power management functionality. These include
the AM335x, AM437x, Keystone K2G SoCs. The functionality provided by
these microcontrollers and the communication mechanisms vary very
widely. However, we are able to consolidate some basic functionality to
be generic enough starting with K2G SoC family. Introduce a basic remote
proc driver to support these microcontrollers. In fact, on SoCs starting
with K2G, basic power management functions are primarily accessible for
the High Level Operating Systems(HLOS) via these microcontroller solutions.

Hence, having these started at a bootloader level is pretty much
mandatory.

Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: keystone2: psc: introduce function to hold and release module in reset.
Nishanth Menon [Thu, 25 Feb 2016 18:53:44 +0000 (12:53 -0600)]
ARM: keystone2: psc: introduce function to hold and release module in reset.

These are useful for modules that need to be held in reset and are
enabled for data to be loaded on to them. Typically these are
microcontrollers or other processing entities in the system.

Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: keystone2: psc-defs: use adequate () for macros
Nishanth Menon [Thu, 25 Feb 2016 18:53:43 +0000 (12:53 -0600)]
ARM: keystone2: psc-defs: use adequate () for macros

'#define X a | b' is better defined as '#define X (a | b)' for obvious
reasons.

Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: keystone2: psc: redo doc in kernel-doc format
Nishanth Menon [Thu, 25 Feb 2016 18:53:42 +0000 (12:53 -0600)]
ARM: keystone2: psc: redo doc in kernel-doc format

u-boot coding style guidance in
http://www.denx.de/wiki/U-Boot/CodingStyle clearly mentions that the
kernel doc style shall be followed for documentation in u-boot.

Current PSC documentation standard does not, so fix that.

Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: keystone2: Get rid of unused clock files
Nishanth Menon [Wed, 24 Feb 2016 23:48:43 +0000 (17:48 -0600)]
ARM: keystone2: Get rid of unused clock files

With commit fe772ebd285b ("ARM: keystone2: Use common definition for
clk_get_rate"), we have centralized the clock code into a common clock
logic and the redundant files, unfortunately remained... Clean that
up.

Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoboard: ti: AM57xx: Add detection logic for AM57xx-evm
Kipisz, Steven [Wed, 24 Feb 2016 18:30:58 +0000 (12:30 -0600)]
board: ti: AM57xx: Add detection logic for AM57xx-evm

Current AM57xx evm supports both BeagleBoard-X15
(http://beagleboard.org/x15) and AM57xx EVM
(http://www.ti.com/tool/tmdxevm5728).

The AM572x EValuation Module(EVM) provides an affordable platform to
quickly start evaluation of Sitara. ARM Cortex-A15 AM57x Processors
(AM5728, AM5726, AM5718, AM5716) and accelerate development for HMI,
machine vision, networking, medical imaging and many other industrial
applications. This EVM is based on the same BeagleBoard-X15 Chassis
and adds mPCIe, mSATA, LCD, touchscreen, Camera, push button and TI's
wlink8 offering.

Since the EEPROM contents are compatible between the BeagleBoard-X15 and
the AM57xx-evm, we add support for the detection logic to enable
support for various user programmable scripting capability.

NOTE: U-boot configuration is currently a superset of AM57xx evm and
BeagleBoard-X15 and no additional configuration tweaking is needed.

This change also sets up the stage for future support of TI AM57xx EVMs
to the same base bootloader build.

Signed-off-by: Steve Kipisz <s-kipisz2@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoARM: OMAP4/5: Add generic board detection hook
Kipisz, Steven [Wed, 24 Feb 2016 18:30:57 +0000 (12:30 -0600)]
ARM: OMAP4/5: Add generic board detection hook

Many TI EVMs have capability to store relevant board information
such as DDR description in EEPROM. Further many pad configuration
variations can occur as part of revision changes in the platform.
In-order to support these at runtime, we for a board detection hook
which is available for override from board files that may desire to do
so.

NOTE: All TI EVMs are capable of detecting board information based on
early clocks that are configured. However, in case of additional needs
this can be achieved within the override logic from within the board
file.

Signed-off-by: Steve Kipisz <s-kipisz2@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
8 years agoti: AM437x: Use generic EEPROM detection logic
Nishanth Menon [Wed, 24 Feb 2016 18:30:56 +0000 (12:30 -0600)]
ti: AM437x: Use generic EEPROM detection logic

Now that we have a generic TI eeprom logic which can be reused across
platforms, reuse the same.

This revision also includes fixes identified by Dave Gerlach
<d-gerlach@ti.com>

Cc: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Steven Kipisz <s-kipisz2@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>