Commit graph

9133 commits

Author SHA1 Message Date
Christian Kohn
169050e4f5 ARM: zynq: zc702: Add adv7511 on i2c bus
Add bindings for adv7511.

Signed-off-by: Christian Kohn <christian.kohn@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-04-13 18:29:01 +02:00
Punnaiah Choudary Kalluri
c9132b1e44 ARM: zynq: DT: Add ethernet phy reset information
Added phy reset gpio information for gem0.

Signed-off-by: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-04-13 18:29:01 +02:00
Michal Simek
936bbc5d16 ARM: zynq: Fix bootargs in board dtsi
- Sync with Linux kernel
- Remove rootfs
- Remove earlyprintk

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-04-13 18:29:01 +02:00
Michal Simek
77bb73decb ARM: zynq: Align devcfg node
- Have compatible string as the first property
- Sync with Linux kernel dtsi
- Add missing interrupt properties

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-04-13 18:29:01 +02:00
Moritz Fischer
20fe3f1791 ARM: dts: Updated devicetree bindings for Zynq 7000 platform
Added addtional bindings required for FPGA Manager operation
of the Xilinx Zynq Devc configuration interface.

Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-04-13 18:29:01 +02:00
Moritz Fischer
4c987271b3 ARM: dts: zynq: Add devicetree entry for Xilinx Zynq reset controller.
Signed-off-by: Moritz Fischer <moritz.fischer@ettus.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-04-13 18:29:01 +02:00
Michal Simek
58fab4cd9c ARM: zynq: Add interrupt-controller property to gpio nodes
GPIO driver supports an input interrupt that's why gpio node itself can
be labeled as interrupt controller.

Reported-by: John Linn <linnj@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-04-13 18:29:01 +02:00
Tom Rini
5fee9489f6 Merge branch 'master' of git://git.denx.de/u-boot-arc 2016-04-11 20:48:28 -04:00
Hans de Goede
df120142f3 arm: Replace v7_maint_dcache_all(ARMV7_DCACHE_INVAL_ALL) with asm code
Lets be consistent and also replace v7_maint_dcache_all()
with asm code for the invalidate case.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2016-04-11 20:48:27 -04:00
Hans de Goede
c09d29057a arm: Replace v7_maint_dcache_all(ARMV7_DCACHE_CLEAN_INVAL_ALL) with asm code
v7_maint_dcache_all() does not work reliable when build with gcc6,
see: https://bugzilla.redhat.com/show_bug.cgi?id=1318788

While debugging this I learned that v7_maint_dcache_all() is unreliable
when build with gcc5 too when it is marked as noinline.

This commit fixes the reliability issues by replacing the C-code with
the ready to use asm implementation from the kernel.

Given that this code when written as C-code clearly is quite fragile
(also see the existing comments about the C-code being the way it is
 to get optimal assembly) and that we have a proven asm alternative,
I believe that this is the best solution.

Note that we actually already had a copy of the kernel's
v7_flush_dcache_all() before this commit in
arch/arm/mach-uniphier/arm32/lowlevel_init.S.

This commit moves that code arch/arm/cpu/armv7/cache_v7_asm.S, renames
it to __v7_flush_dcache_all(), and adds a v7_flush_dcache_all() wrapper
which saves / restores the clobbered registers for use from C-code.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-04-11 20:48:26 -04:00
Vogt, Christof
7f961c90d7 am33xx changed BOOT_DEVICE_SPI to correct value
Changed BOOT_DEVICE Code for SPI on AM33xx.
According AM335x reference manual page 4960
(SPRUH73L-October 2011-Revised February 2015)
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
2016-04-11 20:48:24 -04:00
Stephen Warren
fe84ebf021 rpi: remove redundant board files
Now that rpi_*defconfig and Kconfig (rather than the config header file)
provide the identity of the build, we don't need to separate config
headers and board directories for each RPi variant. Set CONFIG_SYS_BOARD
and CONFIG_SYS_CONFIG_NAME so that we can get rid of the duplication. This
requires a tiny number of extra ifdefs in the config header.

The only disadvantage of this approach is that the $board/$board_name
environment variables aren't as descriptive as they used to be. This isn't
really an issue because those only exist to allow scripts to create DTB
filenames at runtime. However, the RPi board code already sets $fdtfile to
something more accurate based on FW-reported board ID anyway.

While at it, unify some Kconfig select options, and add a MAINTAINERS
entry for bcm283x too.

Partially-suggested-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-04-11 20:48:23 -04:00
Alexey Brodkin
53637c911b arc: Add virt_to_phys() stub
Commit cf7c93cdd7 "usb: ehci: Implement V2P mapping"
introduced usage of virt_to_phys() in ehci-hcd.

Since there was no implementation of virt_to_phys() for ARC
compilation of the ehci-generic driver failed.

This change adds virt_to_phys() stub for ARC so now
USB driver for AXS101 board could be built again.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Acked-by: Marek Vasut <marex@denx.de>
2016-04-11 10:20:38 -07:00
Alexey Brodkin
8b15010b1f arc: get rid of running_on_hw
ISS is obsolete now and nSIM is used for simulation instead.
In its turn nSIM properly handles baud-rate settings so get rid
of now useless check.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2016-04-11 10:20:30 -07:00
Stephen Warren
158c9c78a5 ARM: rpi: add some missing Kconfig help text
Add notes re: enabling the UART to the RPi 3 32-bit help text. Fully
describe the RPi 3 64-bit board option.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-04-11 12:44:38 -04:00
Stephen Warren
d22a765755 ARM: add Raspberry Pi 3 64-bit config
On all Pis so far, the VC FW provides a short stub to set up the ARM CPU
before entering the kernel (a/k/a U-Boot for us). This feature is not
currently supported by the VC FW when booting in 64-bit mode. However,
this feature will likely appear in the near future, and this U-Boot port
assumes that such a feature is in place. Without that feature, or a
temporary workaround described below, U-Boot will not boot.

Once the VC FW does provide the ARM stub, u-boot.bin built for rpi_3 can
be used drectly as kernel7.img, in the same way as any other RPi port. The
following config.txt is required:

    # Fix mini UART input frequency, and setup/enable up the UART.
    # Without this option, U-Boot will not boot, even if you don't care
    # about the serial console. This option will always be required for
    # all RPi3 use-cases, unless the PL011 UART is used, which is not
    # yet supported by rpi_3* builds of U-Boot.
    enable_uart=1
    # Boot in AArch64 (64-bit) mode.
    # It is possible that a future VC FW will remove the need for this
    # option, instead auto-setting 32-/64-bit mode based on the "kernel"
    # filename present on the SD card.
    arm_control=0x200

Prior to the VC FW providing the ARM boot stub, you can use the following
steps to build an equivalent stub into the U-Boot binary:

git clone https://github.com/swarren/rpi-3-aarch64-demo.git \
    ../rpi-3-aarch64-demo
(cd ../rpi-3-aarch64-demo && ./build.sh)
Build U-Boot for rpi_3 in the usual way
cat ../rpi-3-aarch64-demo/armstub64.bin u-boot.bin > u-boot.bin.stubbed
Use u-boot.bin.stubbed as kernel7.img on the Pi SD card.

In this case, the following additional entries are required in config.txt:

    # Tell the FW to load the kernel image at address 0, the reset vector.
    kernel_old=1

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-04-11 12:44:38 -04:00
Stephen Warren
7439b4399b ARM: allow CONFIG_GICV* not to be defined
There are ARM SoCs (such as the BCM2837) do not contain an ARM GIC. Fix
the ARMv8 CPU startup code to compile in this case.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-04-11 12:44:38 -04:00
Tom Rini
9dbdc6ebd4 Merge branch 'master' of git://git.denx.de/u-boot-socfpga 2016-04-10 19:55:25 -04:00
Tom Rini
7e8f270292 Merge branch 'master' of git://git.denx.de/u-boot-usb 2016-04-10 19:55:08 -04:00
Marek Vasut
dafd5792a8 arm: socfpga: Nuke useless include
The dwmmc.h include was forgotten during the migration of dwmmc
probing to DM. Since the shiny DM is in place now, remove this
relic of the past.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Chin Liang See <clsee@altera.com>
2016-04-10 17:19:49 +02:00
Marek Vasut
5f79d00840 arm: socfpga: Handle phy-mode OF property for GMACs
Thus far, the socfpga init code had hard-coded the configuration
of the ethernet PHY interface to RGMII in the ethernet registers
in sysmgr space, so PHYs connected in another modes did not work.

This patch fixes support for configurations where the ethernet PHYs
are connected over MII/GMII/RMII interfaces by parsing the phy-mode
OF property of the GMACs and configuring the ethernet registers in
sysmgr space accordingly.

Signed-off-by: Marek Vasut <marex@denx.de>
Reported-by: Denis Bakhvalov <denis.bakhvalov@nokia.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
2016-04-10 17:19:48 +02:00
Purna Chandra Mandal
ac7eef716e board: pic32mzda: enable USB-host, USB-storage support.
Enable MUSB host and USB storage support for Microchip
PIC32MZ[DA] Starter Kit.

Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com>
2016-04-10 17:18:42 +02:00
Purna Chandra Mandal
f968467785 arm: add missing writes[bwql], reads[bwql].
ARM defines __raw_writes[bwql], __raw_reads[bwql] in arch io.h
but not the writes[bwql], reads[bwql] needed by some drivers.

Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com>
2016-04-10 17:18:41 +02:00
Tom Rini
e16e137c37 Merge branch 'master' of git://git.denx.de/u-boot-mpc85xx 2016-04-08 19:31:06 -04:00
mario.six@gdsys.cc
5068946120 powerpc: mpc85xx: Enable pre-relocation malloc for MPC85xx
To enable DM on MPC85xx, we need pre-relocation malloc, which is
implemented in this patch.

We also make sure that the IVORs are always 4-aligned on e500 to prevent
alignment exceptions caused by code changes in start.S.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
Cc: York Sun <york.sun@nxp.com>
Cc: Simon Glass <sjg@chromium.org>
Reviewed-by: York Sun <york.sun@nxp.com>
2016-04-08 15:42:10 -07:00
Tom Rini
43d3fb5c06 Merge branch 'master' of git://git.denx.de/u-boot-fsl-qoriq 2016-04-06 14:17:22 -04:00
York Sun
3c1d218a1d armv8: LS2080A: Consolidate LS2080A and LS2085A
LS2080A is the primary SoC, and LS2085A is a personality with AIOP
and DPAA DDR. The RDB and QDS boards support both personality. By
detecting the SVR at runtime, a single image per board can support
both SoCs. It gives users flexibility to swtich SoC without the need
to reprogram the board.

Signed-off-by: York Sun <york.sun@nxp.com>
CC: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
2016-04-06 10:26:46 -07:00
Vincent Siles
96077896ee arm: ls102xa: Fix order of CSU indexes in ns_access.h
This patch aims to fix the order of CSU slave index for the LS1021a
board.

Signed-off-by: Vincent Siles <vincent.siles@provenrun.com>
Reviewed-by: Alison Wang <alison.wang@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2016-04-06 10:26:21 -07:00
Ed Swarthout
70e21b0642 armv8: LSCH2 early and final mmu needs matching NS attribute
When switching between the early and final mmu tables, the stack will
get corrupted if the Non-Secure attribute is different.  For ls1043a,
this issue is currently masked because flush_dcache_all is called
before the switch when CONFIG_SYS_DPAA_FMAN is defined.

Signed-off-by: Ed Swarthout <Ed.Swarthout@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2016-04-06 08:35:09 -07:00
Stefan Roese
9fc56631a4 spi: kirkwood_spi: Add support for multiple chip-selects on MVEBU
Currently only chip-select 0 is supported by the kirkwood SPI driver.
The Armada XP / 38x SoCs also use this driver and support multiple chip
selects. This patch adds support for multiple CS on MVEBU.

The register definitions are restructured a bit with this patch. Grouping
them to the corresponding registers.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Reviewed-by: Jagan Teki <jteki@openedev.com>
2016-04-06 15:38:56 +02:00
Tom Rini
4ed6ed3c27 Merge branch 'master' of git://www.denx.de/git/u-boot-microblaze 2016-04-04 14:34:09 -04:00
Michal Simek
a1108da731 ARM64: zynqmp: Select SYS_CONFIG_NAME via Kconfig
This option enable adding new platform suport just by adding defconfig
and DTS file which will target generic configuration for SoC.
Make no sense to extend Kconfig just create a pointer between DTS and
configuration file.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-04-04 20:28:38 +02:00
Michal Simek
a359eaa598 microblaze: Remove !OF_CONTROL code for timer and interrupt
OF_CONTROL is enabled by default that's why this is dead code.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-04-04 20:28:38 +02:00
Michal Simek
9aa65cab73 microblaze: Read information about timer/interrupts from DT
Read information about timer and interrupts from DT. This is the first
small step to move timer and intc to DM.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-04-04 20:28:38 +02:00
Joe Hershberger
a509a1d402 net: gem: Allow to set the MAC from an EEPROM
Provide board specific option how to read MAC address from ROM.
Do it in generic way to be reusable by differnet boards.
If this is not enough board specific functions can be created.

Signed-off-by: Joe Hershberger <joe.hershberger@gmail.com> # driver part
Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-04-04 20:27:54 +02:00
Stefan Roese
ebe7890321 arm: mvebu: Don't enable d-cache on A375
Armada 375 still has some problems with d-cache enabled in the ethernet
driver (mvpp2). So lets keep the d-cache disabled until this is solved.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
2016-04-04 11:22:15 +02:00
Stefan Roese
606576d54b arm: mvebu: Add basic support for Armada 375 eval board db-88f6720
This patch adds basic support for the Marvell A375 eval board. Tested
are the following interfaces:
- I2C
- SPI
- SPI NOR
- Ethernet (mvpp2), port 0 & 1

Currently the A375 SerDes and DDR3 init code is not intergrated. So
the SPL U-Boot is not fully functional.

Right now, this A375 mainline U-Boot can only be used by chainloading
it via the original Marvell U-Boot. This can be done via this
command:

=> tftpboot 00800000 a375/u-boot-dtb.bin;go 00800000

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
2016-04-04 11:22:10 +02:00
Stefan Roese
09e89ab4af arm: mvebu: Add basic support for the Marvell Armada 375 SoC
This patch adds basic support for the Armada 375. Please note that
currently the SerDes and DDR3 init code for the A375 is not
included / enabled. This will be done in a later, follow-up patch.

Right now, this A375 mainline U-Boot can only be used by chainloading
it via the original Marvell U-Boot. This can be done via this
command:

=> tftpboot 00800000 a375/u-boot-dtb.bin;go 00800000

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>
2016-04-04 11:22:05 +02:00
Mateusz Kulikowski
626f048bbc board: Add Qualcomm Dragonboard 410C support
This commit add support for 96Boards Dragonboard410C.
It is board based on APQ8016 Qualcomm SoC, complying with
96boards specification.
Features (present out of the box):
- 4x Cortex A53 (ARMv8)
- 2x USB Host port
- 1x USB Device port
- 4x LEDs
- 1x HDMI connector
- 1x uSD connector
- 3x buttons (Power, Vol+, Vol-/Reset)
- WIFI, Bluetooth with integrated antenna
- 8GiB eMMC

U-Boot boots chained with fastboot in 64-bit mode.
For detailed build instructions see readme.txt in board directory.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Tested-by: Simon Glass <sjg@chromium.org>
2016-04-01 17:18:27 -04:00
Mateusz Kulikowski
085921368b arm: Add support for Qualcomm Snapdragon family
First supported chip is APQ8016 (that is compatible with MSM8916).
Drivers in SoC code:
- Reset controller (PSHOLD)
- Clock controller (very simple clock configuration for MMC and UART)

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
2016-04-01 17:18:26 -04:00
Mateusz Kulikowski
d33776e43d spmi: Add sandbox test driver
This patch adds emulated spmi bus controller with part of
pm8916 pmic on it to sandbox and tests validating SPMI uclass.

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2016-04-01 17:18:12 -04:00
Mateusz Kulikowski
e162c6b1a7 usb: Rename ehci-fsl.h to ehci-ci.h
Most of ehci-fsl header describe USB controller
designed by Chipidea and used by various SoC vendors.

This patch renames it to a generic header: ehci-ci.h
Contents of file are not changed (so it contains several
references to freescale SoCs).

Signed-off-by: Mateusz Kulikowski <mateusz.kulikowski@gmail.com>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Simon Glass <sjg@chromium.org>
2016-04-01 17:18:10 -04:00
Paul Kocialkowski
41582e2e77 sniper: Change vendor name from lge to lg, matching devicetree vendor prefix
This moves the sniper board from the lge to lg, in order to match the devicetree
vendor prefix already defined in the kernel.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
2016-04-01 17:18:06 -04:00
Andreas Dannenberg
f00169a915 arm: spl: Align default board_init_f comment with code
The default board_init_f() implementation performs a call to
board_init_r() as the last step of the sequence. Fix the comment
for this function to reflect the actual execution flow.

Signed-off-by: Andreas Dannenberg <dannenberg@ti.com>
2016-04-01 17:17:57 -04:00
Stephen Warren
f031f501ef rpi: BCM2837 and Raspberry Pi 3 32-bit support
The Raspberry Pi 3 contains a BCM2837 SoC. The BCM2837 is a BCM2836 with
the CPU complex swapped out for a quad-core ARMv8. This can operate in 32-
or 64-bit mode. 32-bit mode is the current default selected by the
VideoCore firmware on the Raspberry Pi 3. This patch adds a 32-bit port of
U-Boot for the Raspberry Pi 3.

>From U-Boot's perspective, the only delta between the RPi 2 and RPi 3 is a
change in usage of the SoC UARTs. On all previous Pis, the PL011 was the
only UART in use. The Raspberry Pi 3 adds a Bluetooth module which uses a
UART to connect to the SoC. By default, the PL011 is used for this purpose
since it has larger FIFOs than the other "mini" UART. However, this can
be configured via the VideoCore firmware's config.txt file. This patch
hard-codes use of the mini UART in the RPi 3 port. If your system uses the
PL011 UART for the console even on the RPi 3, please use the RPi 2 U-Boot
port instead. A future change might determine which UART to use at
run-time, thus allowing the RPi 2 and RPi 3 (32-bit) ports to be squashed
together.

The mini UART has some limitations. One externally visible issue in the
BCM2837 integration is that the UART divides the SoC's "core clock" to
generate the baud rate. The core clock is typically variable, and under
control of the VideoCore firmware for thermal management reasons. If the
VC FW does modify the core clock rate, UART communication will be
corrupted since the baud rate will vary from the expected value. This was
not an issue for the PL011 UART, since it is fed by a fixed 3MHz clock. To
work around this, the VideoCore firmware can be told not to modify the SoC
core clock. However, the only way this can happen and be thermally safe is
to limit the core clock to a low/minimum frequency. This leaves
performance on the table for use-cases that don't care about a UART
console. Consequently, use of the mini UART console must be explicitly
requested by entering the following line into config.txt:

    enable_uart=1

A recent version of the VC firmware is required to ensure that the mini
UART is fully and correctly initialized by the VC FW; at least
firmware.git 046effa13ebc "firmware: arm_loader: emmc clock depends on
core clock See: https://github.com/raspberrypi/firmware/issues/572".

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-04-01 17:17:42 -04:00
Stephen Warren
95a2ddaea5 ARM: bcm2835: expand Kconfig target descriptions
This adds an explanation of which Raspberry Pi models each target option
supports.

Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-04-01 17:17:42 -04:00
Stephen Warren
adb91ec72b ARM: bcm2835: move CONFIG_BCM283* to Kconfig
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-04-01 17:17:41 -04:00
Nishanth Menon
2283284b05 ARM: keystone2: Add missing privilege ID settings
Add missing Privilege ID settings for KS2 SoCs.

Based on:
K2H/K: Table 6-7. Privilege ID Settings from SPRS866E (Nov 2013)
  http://www.ti.com/lit/ds/symlink/66ak2h14.pdf (page 99)
K2L: Table 7-7. Privilege ID Settings from SPRS930 (April 2015)
  http://www.ti.com/lit/ds/symlink/66ak2l06.pdf (page 71)
K2E: Table 7-7. Privilege ID Settings from SPRS865D (Mar 2015)
  http://www.ti.com/lit/ds/symlink/66ak2e05.pdf (page 75)
K2G: Table 3-16. PrivIDs from SPRUHY8 (Jan 2016)
  http://www.ti.com/lit/ug/spruhy8/spruhy8.pdf (page 238)

Overall mapping:
-------+-----------+-----------+-----------+---------
PrivID | KS2H/K    | K2L       | K2E       | K2G
-------+-----------+-----------+-----------+---------
0      | C66x 0    | C66x 0    | C66x 0    | C66x 0
1      | C66x 1    | C66x 1    | Reserved  | ARM
2      | C66x 2    | C66x 2    | Reserved  | ICSS0
3      | C66x 3    | C66x 3    | Reserved  | ICSS1
4      | C66x 4    | Reserved  | Reserved  | NETCP
5      | C66x 5    | Reserved  | Reserved  | CPIE
6      | C66x 6    | Reserved  | Reserved  | USB
7      | C66x 7    | Reserved  | Reserved  | Reserved
8      | ARM       | ARM       | ARM       | MLB
9      | NetCP     | NetCP     | NetCP     | PMMC
10     | QM_PDSP   | QM_PDSP   | QM_PDSP   | DSS
11     | PCIe_0    | PCIe_0    | PCIe_0    | MMC
12     | DEBUG/DAP | DEBUG/DAP | DEBUG/DAP | DEBUG/DAP
13     | Reserved  | Reserved  | PCIe_1    | Reserved
14     | HyperLink | PCIe_1    | HyperLink | Reserved
15     | Reserved  | Reserved  | TSIP      | Reserved
-------+-----------+-----------+-----------+---------

NOTE: Few of these might have default configurations, however,
since most are software configurable, it is better to explicitly
configure the system to have a known default state.

Without programming these, we end up seeing lack of coherency on certain
peripherals resulting in inexplicable failures (such as USB peripheral's
DMA data not appearing on ARM etc and weird workarounds being done by
drivers including cache flushes which tend to have system wide
performance impact).

By marking these segments as shared, we also ensure SoC wide coherency
is enabled.

Reported-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-04-01 17:17:40 -04:00
Nishanth Menon
1f807a9f32 ARM: keystone2: Refactor MSMC macros to avoid #ifdeffery
MSMC segment Privilege ID is not consistent accross the keystone2 SoCs.
As the first step to ensure complete SoC wide coherency setup, lets
refactor the macros to remove the #if-deffery around the code which
obfuscates which IDs are actually enabled for which SoC.

As a result of this change the PCIe configuration is moved after the
msmc configuration is complete, but that should ideally have no
functional impact.

Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-04-01 17:17:40 -04:00
Tom Rini
b745e82837 arm: clang: Update support slightly
- Move most of the flags required into LLVM_RELFLAGS to test at build
  time instead of requiring them to be passed in.
- Update doc/README.clang to reflect this
- Switch to rpi_2 as the example as it's closer to working out of the
  box than rpi is.

Cc: Jeroen Hofstee <jeroen@myspectrum.nl>
Signed-off-by: Tom Rini <trini@konsulko.com>
2016-04-01 17:17:39 -04:00