Commit graph

13518 commits

Author SHA1 Message Date
Rick Chen
b9076495db riscv: checkpatch: Fix missing a blank line after declarations
It is reported by checkpatch.pl
WARNING: Missing a blank line after declarations.

Signed-off-by: Rick Chen <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
2018-03-30 13:13:22 +08:00
Rick Chen
45fc937576 riscv: checkpatch: Fix alignment should match open parenthesis
It is reported by checkpatch.pl.
CHECK: Alignment should match open parenthesis

Signed-off-by: Rick Chen <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
2018-03-30 13:13:22 +08:00
Rick Chen
40717eb849 riscv: checkpatch: Fix use of volatile
It is reported by checkpatch.pl
WARNING: Use of volatile is usually wrong: see
Documentation/process/volatile-considered-harmful.rst

Signed-off-by: Rick Chen <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
2018-03-30 13:13:22 +08:00
Rick Chen
bc0818a6a9 riscv: checkpatch: Fix Macro argument reuse
It is CHECK reported by checkpatch.pl
CHECK: Macro argument reuse 'PTE' - possible side-effects?

Signed-off-by: Rick Chen <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
2018-03-30 13:13:22 +08:00
Alexander Kochetkov
7a6d7d3e12 rockchip: pinctrl: rk3188: Move the iomux definitions into pinctrl-driver
Clean the iomux definitions at grf_rk3188.h, and move them into
pinctrl-driver for resolving the compiling error of redefinition.

Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-28 23:30:30 +02:00
Alexander Kochetkov
b1d093d256 rockchip: pinctrl: rk3036: Move the iomux definitions into pinctrl-driver
Clean the iomux definitions at grf_rk3036.h, and move them into
pinctrl-driver for resolving the compiling error of redefinition.

Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-28 23:30:30 +02:00
Philipp Tomsich
41837e8a6b rockchip: pinctrl: rk3399: add support for I2C[123467]
This adds support for the (to date unsupported) I2C controllers 1~4
and 6~7 (i.e. now all controllers except I2C5, which is not accessible
on the RK3399-Q7, are supported by pinctrl).

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-28 23:30:30 +02:00
Philipp Tomsich
339267a08d rockchip: pinctrl: rk3399: fix GPIO2B1 and GPIO2B2 shift value
The shift values for GPIO2B1 and GPIO2B2 had in fact referred to
GPIO2B0 and GPIO2B1, respectively.  This substitutes the correct
values.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-03-28 23:30:30 +02:00
Tom Rini
89a650e0ff Xilinx changes for v2018.05
- Fix mkimage recognition
 - Update all my fragments
 
 ZynqMP:
 - Use clk driver
 - Support loading elfs in el1
 - Various DTS and defconfig changes
 - Enable newer pmufw versions
 - Support more clocks
 - Remove ep108
 - Secure image support
 - Fix memtest setup
 
 Zynq:
 - Enabling watchdog driver
 - Support more clocks
 - defconfig changes
 
 fpga:
 - Simplify error path
 
 net:
 - GMII case update
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Merge tag 'xilinx-for-v2018.05' of git://git.denx.de/u-boot-microblaze

Xilinx changes for v2018.05

- Fix mkimage recognition
- Update all my fragments

ZynqMP:
- Use clk driver
- Support loading elfs in el1
- Various DTS and defconfig changes
- Enable newer pmufw versions
- Support more clocks
- Remove ep108
- Secure image support
- Fix memtest setup

Zynq:
- Enabling watchdog driver
- Support more clocks
- defconfig changes

fpga:
- Simplify error path

net:
- GMII case update
2018-03-25 12:00:00 -04:00
Tom Rini
423effc04a Merge git://git.denx.de/u-boot-arc
Alexey:
 1. Significantly rework cache-related functionality.
    In particular that fixes coherency problems in some corner-cases,
    allows us to enable and disable caches in run-time and still
    have properly running system, finally support execution from
    real flash (before we used to run from DDR from the very beginning).

 2. Remove string routines implemented in assembly.
    That allows us to build and run U-Boot on wide range of ARC cores
    with different configurations. I.e. whatever tuning is used on GCC's
    command-line we'll get code for desired flavor of ARC.
    Otherwise for each and every corner-case we would need to add ifdefs
    in assembly code to accommodate missing instructions etc.

 3. Get use of GCC's garbage collector which helps to slim-down resulting image
    quite a bit.

 4. Also now we may disable U-Boot self-relocation for ARC if needed either
    by platform or for debugging purposes.
2018-03-23 09:31:24 -04:00
Eugeniy Paltsev
f665c14f04 ARC: bootm: Refactor GO and PREP subcommands implementation
Refactor GO and PREP subcommands implementation for a simpler
override in the boards platform code.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-23 15:57:51 +03:00
Siva Durga Prasad Paladugu
c436bf92f6 arm64: zynqmp: Add support for verifying secure images
This patch adds new command "zynqmp" to handle zynqmp
specific commands like "zynqmp secure". This secure command is
used for verifying zynqmp specific secure images. The secure
image can either be authenticated or encrypted or both encrypted
and authenticated. The secure image is prepared using bootgen
and will be in xilinx specific BOOT.BIN format. The optional
key can be used for decryption of encrypted image if user
key was specified while creation BOOT.BIN.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-03-23 09:36:15 +01:00
Michal Simek
348dbf4368 arm64: zynqmp: Remove ep108 board
ZynqMP Emulation board is no longer tested and there is no reason to
keep maintaining it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-03-23 09:34:59 +01:00
Michal Simek
f5e2943b8b arm: zynq: Enable cadence driver on zc706
Enable watchdog with reset-on-timeout feature.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-03-23 09:34:43 +01:00
Michal Simek
e6cc3b25d7 arm: zynq: Wire watchdog internals
Watchdog is only enabled in full u-boot. Adoption for SPL should be also
done because that's the right place where watchdog should be enabled.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-03-23 09:34:43 +01:00
Michal Simek
1cf6cac4d1 arm64: zynqmp: Enable newer pmufw versions
As of now newer pmufw is keeping old interfaces. That's why permit
u-boot to run on newer version. Recommended version will be setup later.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-03-23 09:34:43 +01:00
Michal Simek
ee4983f73a arm64: zynqmp: Convert board to use zynqmp-clk driver
Use zynqmp clock driver instead of fixed clocks.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-03-23 09:30:44 +01:00
Tom Rini
b0af10443a Merge git://git.denx.de/u-boot-net 2018-03-22 16:35:43 -04:00
Lokesh Vutla
459353d43a ARM: dts: da850-lcdk: Sync from Linux 4.16
Sync dts from Linux 4.16 and also add u-boot specific
dtsi for OMAPl138 board.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2018-03-22 16:32:31 -04:00
Lokesh Vutla
891ab74b1f davinci: Enable DDR_INIT for DA8XX
Commit 6aa4ad8e38 ("Convert CONFIG_SOC_DA8XX et al to Kconfig")
converted SOC_DA8XX to Kconfig but missed enabling DDR_INIT for
SOC_DA8XX, which broke OMAPL138 to boot.

Commit 2e87980580 ("davinci: Fix omapl138_lcdk builds") disabled
DDR_INIT for all DA850 SoCs. This failed all DA850 boards to boot
as ddr is not being initialized.

Enable SYS_DA850_DDR_INIT for DA8XX so that all DA850 and OMAPL138
will have ddr initialized

Fixes: 2e87980580 ("davinci: Fix omapl138_lcdk builds")
Fixes: 6aa4ad8e38 ("Convert CONFIG_SOC_DA8XX et al to Kconfig")
Reported-by: Sekhar Nori <nsekhar@ti.com>
Tested-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: David Lechner <david@lechnology.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2018-03-22 16:32:31 -04:00
Calvin Johnson
ac0ba47b9c armv8: layerscape: csu: enable ns access to PFE registers
Enable all types of non-secure access to PFE block registers.

Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>
Signed-off-by: Anjaneyulu Jagarlmudi <anji.jagarlmudi@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2018-03-22 15:05:30 -05:00
Calvin Johnson
c4dc68b02f armv8: fsl-lsch2: configure pfe's DDR and HDBUS interfaces and ECC
1. Set AWCACHE0 attribute of PFE DDR and HDBUS master interfaces
to bufferable.
2. Set RD/WR QoS for PFE DDR and HDBUS AXI master interfaces.
3. Disable ECC detection for PFE.

Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>
Signed-off-by: Anjaneyulu Jagarlmudi <anji.jagarlmudi@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2018-03-22 15:05:30 -05:00
Calvin Johnson
c44f8125bc armv8: fsl-lsch2: add pfe macros and update ccsr_scfg structure
SoC specific PFE macros are defined and structure ccsr_scfg
is updated with members defined for PFE.

Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>
Signed-off-by: Anjaneyulu Jagarlmudi <anji.jagarlmudi@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2018-03-22 15:05:30 -05:00
Prabhakar Kushwaha
6b1373f245 armv8: fsl-layerscape: Add support of GPIO structure
Layerscape Gen2 SoC supports GPIO registers to control GPIO
signals. Adding support of GPIO structure to access GPIO
registers.

Signed-off-by: Pratiyush Srivastava <pratiyush.srivastava@nxp.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
2018-03-22 15:05:28 -05:00
Álvaro Fernández Rojas
358daa5b22 mips: bmips: add ar-5315 usb support
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-03-21 23:23:13 +01:00
Álvaro Fernández Rojas
ee1f79b738 mips: bmips: add support for bcm6318 usb
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-03-21 23:23:13 +01:00
Álvaro Fernández Rojas
485d2cd3d6 mips: bmips: add vr-3032u usb support
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-03-21 23:23:13 +01:00
Álvaro Fernández Rojas
35e03f0011 mips: bmips: add support for bcm63268 usb
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-03-21 23:23:13 +01:00
Álvaro Fernández Rojas
ddc5dc5a1b mips: bmips: add dgnd3700v2 usb support
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-03-21 23:23:13 +01:00
Álvaro Fernández Rojas
ad7f6ed41e mips: bmips: add support for bcm6362 usb
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-03-21 23:23:13 +01:00
Álvaro Fernández Rojas
56928dd570 mips: bmips: add ar-5387un usb support
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-03-21 23:23:13 +01:00
Álvaro Fernández Rojas
f94e360614 mips: bmips: add support for bcm6328 usb
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-03-21 23:23:13 +01:00
Álvaro Fernández Rojas
b8841ce18a mips: bmips: add wap-5813n usb support
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-03-21 23:23:13 +01:00
Álvaro Fernández Rojas
fc5cf3a0c7 mips: bmips: add support for bcm6368 usb
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-03-21 23:23:13 +01:00
Álvaro Fernández Rojas
e39f6c0b67 mips: bmips: add nb4-ser usb support
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-03-21 23:23:13 +01:00
Álvaro Fernández Rojas
465d6971e9 mips: bmips: add hg556a usb support
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-03-21 23:23:13 +01:00
Álvaro Fernández Rojas
e8dad2e739 mips: bmips: add support for bcm6358 usb
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-03-21 23:23:13 +01:00
Álvaro Fernández Rojas
0975a61513 mips: bmips: add ct-5361 usb support
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-03-21 23:23:13 +01:00
Álvaro Fernández Rojas
d51aaf84cb mips: bmips: add support for bcm6348 usb
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-03-21 23:23:13 +01:00
Álvaro Fernández Rojas
9d466f2fe1 MIPS: add BMIPS Netgear DGND3700v2 board
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-03-21 23:23:13 +01:00
Álvaro Fernández Rojas
8f240a3b45 MIPS: add support for Broadcom MIPS BCM6362 SoC family
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2018-03-21 23:23:13 +01:00
Eugeniy Paltsev
6b85b26e4b ARC: Cache: Refactor arc_ioc_setup()
Move all checks before cache flush and IOC setup.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:55 +03:00
Eugeniy Paltsev
9f0253c61a ARC: Cache: Add missing cache cleanup before cache disable
Add missing cache cleanup before cache disable:
 * Flush and invalidate L1 D$ before disabling. Flush and invalidate
   SLC before L1 D$ disabling (as it will be bypassed for data)
   Otherwise we can lose some data when we disable L1 D$ if this data
   isn't flushed to next level cache. Or we can get wrong data if L1 D$
   has some entries after enable which we modified when the L1 D$ was
   disabled.
 * Invalidate L1 I$ before disabling. Otherwise we can execute wrong
   instructions after L1 I$ enable if we modified any code when
   L1 I$ was disabled.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:55 +03:00
Eugeniy Paltsev
7241944a5b ARC: Cache: Add more HW configuration checks
Add additional cache configuration checks and note about
supported configurations.

It is unlikely to face some configuration in real life but
it's better to be prepared and refuse to work on those.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:55 +03:00
Eugeniy Paltsev
375945bac2 ARC: Implement a function to sync and cleanup caches
Implement specialized function to clenup caches (and therefore
sync instruction and data caches) which can be used for cleanup before linux
launch or to sync caches during U-Boot self-relocation.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:54 +03:00
Eugeniy Paltsev
95336738f1 ARC: Cache: Fix SLC operations when SLC is bypassed for data
If L1 D$ is disabled SLC is bypassed for data and all
load/store requests are sent directly to main memory.

If L1 I$ is disabled SLC is NOT bypassed for instructions
and all instruction requests are fetched through SLC.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:54 +03:00
Eugeniy Paltsev
c75eeb0bcb ARC: Cache: Implement [i,d]cache_enabled() as separate functions
Implement icache_enabled() and dcache_enabled() as separate functions
which can be used with "inline" attribute. This is a preparation to
make them always_inline.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:54 +03:00
Eugeniy Paltsev
48b04832d8 ARC: Move IOC enabling to compile-time options
Use CONFIG_ARC_DBG_IOC_ENABLE Kconfig option instead of
ioc_enable global variable.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:54 +03:00
Eugeniy Paltsev
246ba284ec ARC: Cache: Move PAE exists check into slc_upper_region_init()
Move check for PAE existence into slc_upper_region_init()
instead of its caller as more appropriate place.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:54 +03:00
Eugeniy Paltsev
bf8974eda4 ARC: Move cache global variables to arch_global_data
There is a problem with current implementation if we start U-Boot
from ROM, as we use global variables before ther initialization,
so these variables get overwritten when we copy .data section
from ROM.

Instead we move these global variables into our "global data"
structure so that we may really start from ROM.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:54 +03:00
Eugeniy Paltsev
7579087320 ARC: Cache: Get rid of [slc,pae,icache,dcache]_exists global variables
There is a problem with current implementation if we start U-Boot
from ROM, as we use global variables before ther initialization,
so these variables get overwritten when we copy .data section
from ROM.

Instead we'll use icache_exists(), dcache_exists(), slc_exists(), pae_exists()
functions which directly check BCRs every time.

In U-Boot case ops are used only during self-relocation and DMA
so we shouldn't be hit by noticeable performance degradation.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:54 +03:00
Eugeniy Paltsev
ea9f6f1e87 ARC: Cache: Move SLC status check into slc_entire_op() and slc_rgn_op()
As of today we check SLC status before each call of __slc_rgn_op()
or __slc_entire_op(). So move status check into __slc_rgn_op()
and __slc_entire_op().

As we need to check status before *each* function execution and we
call slc_entire_op() and slc_rgn_op() from different places we add
this check directly into SLC entire/line functions instead of
their callers to avoid code duplication.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:54 +03:00
Eugeniy Paltsev
05c6a26a04 ARC: Cache: Use is_isa_arcv2() instead of CONFIG_ISA_ARCV2 ifdef
Use is_isa_arcv2() function where it is possible instead of
CONFIG_ISA_ARCV2 define check to make code cleaner at the same time
keeping pretty much the same functionality - code in branches
under "if (is_isa_arcv2())" won't be compiled if CONFIG_ISA_ARCV2
is not defined, still we need a couple of CONFIG_ISA_ARCV2
ifdefs to make compiler happy. That's because code in
!is_isa_x() branch gets compiled and only then gets optimized
away.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:54 +03:00
Eugeniy Paltsev
c877a8911d ARC: Cache: Allways check D$ status before entire/line ops
As we are planning to get rid of dozens of ifdef's in cache.c we
would better check D$ status before each entire/line operation
then check CONFIG_SYS_DCACHE_OFF config option.

This makes the code cleaner as well as D$ entire/line functions
remain functional even if we enable or disable D$ in run-time.

As we need to check status before *each* function execution and we
call D$ entire/line functions from different places we add
this check directly into D$ entire/line functions instead of
their callers to avoid code duplication.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:54 +03:00
Eugeniy Paltsev
88ae27eda3 ARC: Move BCR encodings to separate header file
We're starting to use more and more BCRs and having their
definitions in-lined in sources becomes a bit annoying
so we move it all to a separate header.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:54 +03:00
Eugeniy Paltsev
a6f557c4e0 ARC: Cache: Move IOC initialization to a separate function
Move IOC initialization from cache_init() to a separate function.

This is the preparation for the next patch where we'll switch
to is_isa_arcv2() function usage instead of "CONFIG_ISA_ARCV2"
ifdef.

Also it makes cache_init function a bit cleaner.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:49 +03:00
Eugeniy Paltsev
c27814be33 ARC: Flush & invalidate D$ with a single command
We don't implement separate flush_dcache_all() intentionally as
entire data cache invalidation is dangerous operation even if we flush
data cache right before invalidation.

There is the real example:
We may get stuck in the following code if we store any context (like
BLINK register) on stack in invalidate_dcache_all() function.

BLINK register is the register where return address is automatically saved
when we do function call with instructions like 'bl'.

void flush_dcache_all() {
	__dc_entire_op(OP_FLUSH);
	// Other code //
}

void invalidate_dcache_all() {
	__dc_entire_op(OP_INV);
	// Other code //
}

void foo(void) {
	flush_dcache_all();
	invalidate_dcache_all();
}

Now let's see what really happens during that code execution:

foo()
  |->> call flush_dcache_all
  	[return address is saved to BLINK register]
  	[push BLINK] (save to stack)              ![point 1]
  	|->> call __dc_entire_op(OP_FLUSH)
  		[return address is saved to BLINK register]
  		[flush L1 D$]
  		return [jump to BLINK]
  	<<------
  	[other flush_dcache_all code]
  	[pop BLINK] (get from stack)
  	return [jump to BLINK]
  <<------
  |->> call invalidate_dcache_all
  	[return address is saved to BLINK register]
  	[push BLINK] (save to stack)               ![point 2]
  	|->> call __dc_entire_op(OP_FLUSH)
  		[return address is saved to BLINK register]
  		[invalidate L1 D$]                 ![point 3]
  		// Oops!!!
  		// We lose return address from invalidate_dcache_all function:
  		// we save it to stack and invalidate L1 D$ after that!
  		return [jump to BLINK]
  	<<------
  	[other invalidate_dcache_all code]
  	[pop BLINK] (get from stack)
  	// we don't have this data in L1 dcache as we invalidated it in [point 3]
  	// so we get it from next memory level (for example DDR memory)
  	// but in the memory we have value which we save in [point 1], which
  	// is return address from flush_dcache_all function (instead of
  	// address from current invalidate_dcache_all function which we
  	// saved in [point 2] !)
  	return [jump to BLINK]
  <<------
  // As BLINK points to invalidate_dcache_all, we call it again and
  // loop forever.

Fortunately we may do flush and invalidation of D$ with a single one
instruction which automatically mitigates a situation described above.

And because invalidate_dcache_all() isn't used in common U-Boot code we
implement "flush and invalidate dcache all" instead.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:49 +03:00
Eugeniy Paltsev
5e0c68edad ARC: Introduce is_isa_X() functions
Introduce is_isa_arcv2() and is_isa_arcompact() functions.

These functions only check configuration options and return
compile-time constant so they can be used instead of #ifdef's to
to write cleaner code.

Now we can write:
-------------->8---------------
if (is_isa_arcv2())
	ioc_configure();
-------------->8---------------
instead of:
-------------->8---------------
ifdef CONFIG_ISA_ARCV2
	ioc_configure();
endif
-------------->8---------------

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:49 +03:00
Eugeniy Paltsev
5d7a24d646 ARC: Cache: Add support for FLUSH_N_INV D$ operations
As of today __dc_line_op() and __dc_entire_op() support
only separate flush (OP_FLUSH) and invalidate (OP_INV) operations.

Add support of combined flush and invalidate (OP_FLUSH_N_INV)
operation which we planing to use in subsequent patches.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:44 +03:00
Eugeniy Paltsev
c4ef14d2cc ARC: Cache: Remove per-line I$ operations as unused
__cache_line_loop() function was copied from Linux kernel
where per-line instruction cache operations are really used.

In U-Boot we use only entire I$ ops, so we can drop support of
per-line I$ ops from __cache_line_loop() because __cache_line_loop()
is never called with OP_INV_IC parameter.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:37 +03:00
Eugeniy Paltsev
16aeee81d9 ARC: Cache: Move I$ entire operation to a separate function
Move instruction cache entire operation to a separate function
because we are planing to use it in other places like
sync_icache_dcache_all().

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 17:06:29 +03:00
Alexey Brodkin
71621525c3 arc: Fine-tune implementation of memory barriers
We improve on 2 things:
 1. Only ARC HS family has "dmb" instructions so do compile-time
    check for automatically defined macro __ARCHS__.
    Previous check for ARCv2 ISA was not good enough because ARC EM
    family is v2 ISA as well but still "dmb" instaruction is not
    supported in EM family.

 2. Still if there's no dedicated instruction for memory barrier
    let's at least insert compile-time barrier to make sure
    compiler deosn't reorder critical memory operations.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 16:21:34 +03:00
Alexey Brodkin
264d298fda arc: Introduce a possibility to not relocate U-boot
Disabling relocation might be useful on ARC for 2 reasons:
 a) For advanced debugging with Synopsys proprietary MetaWare debugger
    which is capable of accessing much more specific hardware resources
    compared to gdb. For example it may show contents of L1 and L2 caches,
    internal states of some hardware blocks etc.

    But on the downside MetaWare debugger still cannot work with PIE.
    Even though that limitation could be work-arounded with change of ELF's
    header and stripping down all debug info but with it we won't have
    debug info for source-level debugging which is quite inconvenient.

 b) Some platforms which might benefit from usage of U-Boot basically
    don't have enough RAM to accommodate relocation of U-Boot so we
    keep code in flash and use as much of RAM as possible for more
    interesting things.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: York Sun <york.sun@nxp.com>
Cc: Stefan Roese <sr@denx.de>
2018-03-21 16:21:34 +03:00
Alexey Brodkin
fac4790491 arc: Eliminate unused code and data with GCC's garbage collector
Finally GCC's garbage collector works on ARC so let's use it.
That's what I may see for HSDK:

Before:
   text	   data	    bss	    dec	    hex	filename
 290153	  10068	 222616	 522837	  7fa55	u-boot

After:
   text	   data	    bss	    dec	    hex	filename
 261999	   9460	 222360	 493819	  788fb	u-boot

Overall ~5% of memory footprint saved.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 16:21:34 +03:00
Alexey Brodkin
0a097ba54b arc: Don't halt slaves
This commit basically reverts two commits:
 1. cf628f772e ("arc: arcv1: Disable master/slave check")
 2. 6cba327bd9 ("arcv2: Halt non-master cores")

With mentioned commits in-place we experience more trouble than
benefits. In case of SMP Linux kernel this is really required as
we have all the cores running from the very beginning and then we
need to allow master core to do some preparatory work while slaves
are not getting in the way.

In case of U-Boot we:
 a) Don't really run more than 1 core in parallel
 b) We may use whatever core for that

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 16:21:34 +03:00
Alexey Brodkin
2178817c4a arc: Get rid of handwritten string routines
U-Boot is a bit special piese of software because it is being
only executed once on power-on as compared to operating system
for example. That's why we don't care much about performance
optimizations instead we're more concerned about size. And up-to-date
compilers might produce much smaller code compared to
performance-optimized routines copy-pasted from the Linux kernel.

Here's an example:
------------------------------->8--------------------------
--- size_asm_strings.txt
+++ size_c_strings.txt
@@ -1,2 +1,2 @@
    text	   data	    bss	    dec	    hex	filename
- 121260	   3784	   3308	 128352	  1f560	u-boot
+ 120448	   3784	   3308	 127540	  1f234	u-boot
------------------------------->8--------------------------

See we were able to shave off ~800 bytes of .text section.

Also usage of string routines implemented in C gives us an ability
to support more HW flavors for free: generated instructions will match
our target as long as correct compiler option is used.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2018-03-21 16:21:34 +03:00
Tom Rini
9c0e2f6ed3 Merge git://git.denx.de/u-boot-fsl-qoriq 2018-03-20 18:39:27 -04:00
Ashish Kumar
c1c597e8a8 armv8: ls1088aqds: Add IFC-NOR as boot source for LS1088
IFC-NOR and QSPI-NOR pins are multiplexed on SoC, so they cannot be
accessed simultaneously. IFC-NOR can be accessed along with SD-BOOT.

Ls1088aqds_sdcard_ifc_defconfig is default config for SD boot and
IFC-NOR to be used as flash. This allows writing to IFC-NOR flash.
QSPI and DSPI cannot be accessed in this defconfig.
IFC-NOR image is generated using ls1088aqds_defconfig.

Signed-off-by: Ashish Kumar <Ashish.Kumar@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2018-03-20 08:27:13 -07:00
Tom Rini
c17848a798 Merge git://git.denx.de/u-boot-sunxi 2018-03-19 18:39:14 -04:00
Patrick Delaunay
f8598d9815 board: st: add generic board for STM32MP1 family
Add first support for STM32MP157C-ED1 board with "Basic" boot chain
1/ Boot Rom: load SPL with STM32 image header in SYSRAM
2/ SPL: power up and initialize the DDR and load U-Boot image
        from SDCARD in DDR
3/ U-Boot: search and load extlinux.conf in SDCARD
           (DISTRO activated)

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-19 16:14:22 -04:00
Patrick Delaunay
3d2d115a30 dts: add device tree for STM32MP157C-ED1 board
Add minimal devicetree for STM32MP157C-ED1 board,
with only the devices to allow boot from SDCARD:
- RCC for clock and reset
- UART4 for console
- I2C and PMIC
- DDR
- SDMMC0 for SDCard

Waiting Kernel upstream for alignment.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-19 16:14:22 -04:00
Patrick Delaunay
e70f70aa65 ram: stm32mp1: add driver
Add driver and binding for stm32mp1 ddr controller and phy

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-19 16:14:21 -04:00
Patrick Delaunay
2514c2d0e6 arm: stm32: add new architecture for STM32MP family
- add new arch stm32mp for STM32 MPU/Soc based on Cortex A
- support for stm32mp157 SOC
- SPL is used as first boot stage loader
- using driver model for all the drivers, even in SPL
- all security feature are deactivated (ETZC and TZC)
- reused STM32 MCU drivers when it is possible

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-19 16:14:21 -04:00
Patrick Delaunay
77aace579a arm: armv7: solve issue for timer_rate_hz in arch timer
The current value timer_rate_hz causes a problem with function
timer_get_us() from lib time and then an issue with
readx_poll_timeout() function.

With corrected value for tbclk() = timer_rate_hz = CONFIG_SYS_HZ_CLOCK
the weak functions in lib timer can be used:
- get_timer()
- __udelay()
So the specific function in this file are removed.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-19 16:14:20 -04:00
Jagan Teki
0354f4bef0 sunxi: Add DRAM_SUN8I_A83T kconfig entry
Add proper and simple kconfig option for dram_sun8i_a83t.c
instead of using MACH type on Makefile.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-03-19 16:46:47 +05:30
Jagan Teki
c335e9903c sunxi: Add DRAM_SUN8I_A33 kconfig entry
Add proper and simple kconfig option for dram_sun8i_a33.c
instead of using MACH type on Makefile.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-03-19 16:46:44 +05:30
Jagan Teki
af30393cb5 sunxi: Add DRAM_SUN8I_A23 kconfig entry
Add proper and simple kconfig option for dram_sun8i_a23.c
instead of using MACH type on Makefile.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-03-19 16:46:41 +05:30
Jagan Teki
7d0b165d5e sunxi: Add DRAM_SUN9I kconfig entry
Add proper and simple kconfig option for dram_sun9i.c
instead of using MACH type on Makefile.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-03-19 16:46:37 +05:30
Jagan Teki
dd928bfbb6 sunxi: Add DRAM_SUN4I kconfig entry
Add proper and simple kconfig option for dram_sun4i.c
instead of using MACH type on Makefile.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-03-19 16:46:14 +05:30
Jagan Teki
fdfa934e6e sunxi: add DRAM_SUN6I kconfig
Add proper and simple kconfig option for dram_sun6i.c
instead of using MACH type on Makefile.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-03-19 15:37:20 +05:30
Jagan Teki
735fb25202 sunxi: Add AXP_PMIC_BUS kconfig entry
Add simple and meaningful kconfig option for pmic_bus.c
instead of using MACH type on Makefile.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-03-19 15:37:20 +05:30
Jagan Teki
6f6f883949 sunxi: Add SUN8I_RSB kconfig entry
Add simple and meaningful kconfig option for rsb.c
instead of using MACH type on Makefile.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-03-19 15:37:20 +05:30
Jagan Teki
63928fa6dd sunxi: Use SUN6I_PRCM if used
SUN6I_PRCM is also used for SUN8I and SUN9I, so
select the same on respective MACH types.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-03-19 15:37:20 +05:30
Jagan Teki
71d9edf47a sunxi: Add SUN6I_P2WI kconfig entry
Add simple and meaningful kconfig option for p2wi.c
instead of using MACH type on Makefile.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-03-19 15:37:20 +05:30
Jagan Teki
2aa697a494 sunxi: Add SUN6I_PRCM kconfig entry
Add simple and meaningful kconfig option for prcm.c
instead of using MACH type on Makefile.

PRCM (Power/Reset/Clock Management) is considered as a
Multi-Functional Device, so used the same on Kconfig definition.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-03-19 15:37:20 +05:30
yannick fertre
455141636f arm: dts: stm32: add display for STM32F746 disco board
Enable the display controller, panel & backlight.
Set panel display timings & set the RGB data bus.

Signed-off-by: yannick fertre <yannick.fertre@st.com>
2018-03-19 11:00:23 +01:00
Philippe CORNU
0e75aa4d1d arm: dts: stm32: add ltdc for STM32F746
Add display controller node in device-tree.

Signed-off-by: yannick fertre <yannick.fertre@st.com>
[agust: rebased on master]
Signed-off-by: Anatolij Gustschin <agust@denx.de>
2018-03-19 10:58:16 +01:00
Patrick Delaunay
b8aa55cb64 common: move init_helpers.h prototypes in init.h
Merge init_helpers.h in the new file init.h
with only prototypes for init_cache_f_r
used in common/board_f.c

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
2018-03-16 14:56:59 -04:00
Michal Simek
71b7564479 ppc: Remove orphan xilinx_irq.h file
This file is completely unused and it should be removed as the part of
ppc405/ppc440 xilinx platform removal.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-03-16 14:54:14 -04:00
Tom Rini
6f6b7cfa89 Convert all of CONFIG_CONS_INDEX to Kconfig
This converts the following to Kconfig:
   CONFIG_CONS_INDEX

We have existing entries for this option in a number of places, with
different guards on them.  They're also sometimes used for things not
directly inside of the serial driver.  First, introduce a new symbol to
guard the use of CONFIG_CONS_INDEX, so that in the case where we don't
need this for the serial driver, but for some other use, we can still do
it.  Next, consolidate all of these into the single entry in
drivers/serial/Kconfig.  Finally, introduce CONS_INDEX_[023456] so that
we can imply a correct value here to make the defconfig side of this
smaller.

Signed-off-by: Adam Ford <aford173@gmail.com>
[trini: Rework a lot of the logic here, such that I took authorship from
Adam, but kept his S-o-B line]
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-03-16 10:28:52 -04:00
Wenyou Yang
cb0cb1b0cf clk: at91: add USB Host clock driver
Add USB clock driver to configure the input clock and the divider
in the PMC_USB register to generate a 48MHz and a 12MHz signal to
the USB Host OHCI.

Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
2018-03-16 07:30:04 -04:00
Tom Rini
735f397c14 Merge git://git.denx.de/u-boot-uniphier 2018-03-15 09:58:30 -04:00
Masahiro Yamada
46820e3f67 ARM: dts: uniphier: sync with Linux 4.16-rc5
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-03-15 22:43:47 +09:00
Tom Rini
3fa9bc7969 Merge git://git.denx.de/u-boot-spi 2018-03-15 08:27:27 -04:00
Tom Rini
b75643ad0a Merge git://git.denx.de/u-boot-sunxi 2018-03-14 13:27:14 -04:00
Sam Protsenko
7a390c0e25 omap: Fix AM335x build with enabled fastboot flash
When enabling CONFIG_FASTBOOT_FLASH in am335x_boneblack_defconfig, next
build errors and warnings occur:

    arch/arm/mach-omap2/utils.c: In function ‘omap_set_fastboot_cpu’:
    arch/arm/mach-omap2/utils.c:26:16: warning: implicit declaration of
              function ‘omap_revision’ [-Wimplicit-function-declaration]
              u32 cpu_rev = omap_revision();
                            ^~~~~~~~~~~~~
    arch/arm/mach-omap2/utils.c:29:7: error: ‘DRA762_ES1_0’ undeclared
              (first use in this function)

Include asm/omap_common.h explicitly to avoid those.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Acked-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
2018-03-13 21:59:29 -04:00
Jean-Jacques Hiblot
938c3cfb80 ARM: dts: dra7x: Make pinctrl and IOdelays for MMC2 available in SPL
The SPL can't use high speed MMC modes if the associated pinctrl and
IOdelays are described in the DTS.
Make them available in SPL by tagging the nodes with 'u-boot,dm-spl;'

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-03-13 21:59:29 -04:00
Jean-Jacques Hiblot
a7b704a0b6 ARM: dts: dra76-evm: shift to using common IOdelay data
Now that we have a device-tree include file with common
MMC/SD IOdelay data for DRA76x SoC, shift the EVM device-tree
file to using that.
Also fix the name of the IO voltage regulator for mmc1.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-03-13 21:59:28 -04:00
Jean-Jacques Hiblot
cb608ccb03 ARM: dts: dra76x: create a common file with MMC/SD IOdelay data
Add a common device-tree include file with MMC/SD IOdelay data
for DRA76x SoC based on the linux DTSI file.

In the most common case, IOdelay data available in datamanual
can directly be used. This file caters to that common case.

Data is based on DRA76x datamanual, SPRS993A, revised July 2017.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-03-13 21:59:28 -04:00
Patrice Chotard
f5bd13ed57 mach-stm32: Use default memory map as background region
On linux kernel side, on STM32F7 and STM32H7 SoCs, DMA requires
uncachable regions. These regions are defined in DT.
Since kernel linux v4.15, on ARMv7-M Cortex, kernel is able
to configure MPU regions depending on DT settings.

As kernel is able to configure MPU, this allows to remove
MPU region settings in bootloader.

On Cortex M processors, MPU allows to use a default memory map.
(see B3.5.4 MPU Control Register, MPU_CTRL in
https://developer.arm.com/products/architecture/m-profile/docs/ddi0403/latest/armv7-m-architecture-reference-manual)
Use the default memory map as background region for all STM32 SoCs
family with an additional MPU region corresponding to the SDRAM area.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-03-13 21:45:37 -04:00