Commit graph

9275 commits

Author SHA1 Message Date
Patrice Chotard
9582100eee ARM: dts: stm32: Add quadspi reset for stm32f746
Add missing reset property in quadspi node.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-05-16 18:41:21 +05:30
Tom Rini
c75990889d Merge branch 'master' of git://git.denx.de/u-boot-video 2018-05-15 08:29:24 -04:00
Vasily Khoruzhick
3ecec5aadd dts: sunxi: add PWM node for sun50i
Add PWM definition to sun50i-a64.dtsi

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
2018-05-15 08:18:14 +02:00
Vasily Khoruzhick
1c353aea2b pwm: sunxi: add support for PWM found on Allwinner A64
This commit adds basic support for PWM found on Allwinner A64.
It can be used for pwm_backlight driver (e.g. for Pinebook)

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
2018-05-15 08:18:09 +02:00
Chris Packham
ed52ea507f net: add Kconfig for MVGBE
Add Kconfig for MVGBE and update boards to select this.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
2018-05-14 21:28:38 -04:00
Chris Packham
c4195d5553 ARM: mvebu: a38x: move sys_env_device_rev_get
Move sys_env_device_rev_get() from the ddr training code to
sys_env_lib.c (which currently resides with the serdes code). This
brings sys_env_device_rev_get() into line with sys_env_device_id_get()
and sys_env_model_get().

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
2018-05-14 10:01:56 +02:00
Chris Packham
e6fce12d14 ARM: mvebu: a38x: move definition of PEX_CFG_DIRECT_ACCESS
PEX_CFG_DIRECT_ACCESS was defined in ddr3_hws_hw_training_def.h despite
only being used in the serdes code. Move this definition to ctrl_pex.h
where all the other PEX defines are. Also remove the duplicate
definition of PEX_DEVICE_AND_VENDOR_ID which is already defined in
ctrl_pex.h.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
2018-05-14 10:01:56 +02:00
Marek Behún
80af1a9ef6 arm64: mvebu: Add basic support for the Turris Mox board
This adds basic support for the Turris Mox board from CZ.NIC, which is
currently being crowdfunded on Indiegogo.

Turris Mox is as modular router based on the Armada 3720 SOC (same as
EspressoBin).

The basic module can be extended by different modules. The device tree
binary for the kernel can be dependent on which modules are connected,
and in what order. Because of this, the board specific code creates
in U-Boot a variable called module_topology, which carries this
information.

Signed-off-by: Marek Behun <marek.behun@nic.cz>
Signed-off-by: Stefan Roese <sr@denx.de>
2018-05-14 10:00:15 +02:00
Marek Behún
2b69a67389 watchdog: Add support for Armada 37xx CPU watchdog
This adds support for the CPU watchdog found on Marvell Armada 37xx
SoCs.

There are 4 counters which can be set as CPU watchdog counters.
This driver uses the second counter (ID 1, counting from 0)
(Marvell's Linux also uses second counter by default).
In the future it could be adapted to use other counters, with
definition in the device tree.

Signed-off-by: Marek Behun <marek.behun@nic.cz>
Signed-off-by: Stefan Roese <sr@denx.de>
2018-05-14 10:00:15 +02:00
Marek Behún
dbbd5bdd27 spi: mvebu_a3700_spi: Use Armada 37xx clk driver for SPI clock frequency
Since now we have driver for clocks on Armada 37xx, use it to determine
SQF clock frequency for the SPI driver.

Also change the default config files for Armada 37xx devices so that
the clock driver is enabled by default, otherwise the SPI driver cannot
be enabled.

Signed-off-by: Marek Behun <marek.behun@nic.cz>
Signed-off-by: Stefan Roese <sr@denx.de>
2018-05-14 10:00:15 +02:00
Marek Behún
82a248df9a driver: clk: Add support for clocks on Armada 37xx
The drivers are based on Linux driver by Gregory Clement.

The TBG clocks support only the .get_rate method.
  - since setting rate is not supported, the driver computes the rates
    when probing and so subsequent calls to the .get_rate method do not
    read the corresponding registers again

The peripheral clocks support methods .get_rate, .enable and .disable.

  - the .set_parent method theoretically could be supported on some clocks
    (the parent would have to be one of the TBG clocks)

  - the .set_rate method would have to try all the divider values to find
    the best approximation of a given rate, and it doesn't seem like
    this should be needed in U-Boot, therefore not implemented

Signed-off-by: Marek Behun <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
2018-05-14 10:00:15 +02:00
Marek Behún
22f418935b phy: marvell: a3700: Use comphy_mux on Armada 37xx.
Lane 0 supports SGMII1 and USB3.
Lane 1 supports SGMII0 and PEX0.
Lane 2 supports SATA0 and USB3.

This is needed for Armada 37xx.

This introduces new device tree bindings. AFAIK there is currently no
driver for Armada 37xx comphy in Linux. When such a driver will be
pushed into Linux, this will need to be rewritten accordingly.

Signed-off-by: Marek Behun <marek.behun@nic.cz>
Signed-off-by: Stefan Roese <sr@denx.de>
2018-05-14 10:00:15 +02:00
Tom Rini
9a66328a37 Merge git://git.denx.de/u-boot-tegra 2018-05-11 15:22:36 -04:00
Tom Rini
3b52847a45 Xilinx changes for v2018.07
microblaze:
 - Align defconfig
 
 zynq:
 - Rework fpga initialization and cpuinfo handling
 
 zynqmp:
 - Add ZynqMP R5 support
 - Wire and enable watchdog on zcu100-revC
 - Setup MMU map for DDR at run time
 - Show board info based on DT and cleanup IDENT_STRING
 
 zynqmp tools:
 - Add read partition support
 - Add initial support for Xilinx bif format for boot.bin generation
 
 mmc:
 - Fix get_timer usage on 64bit cpus
 - Add support for SD3.0 UHS mode
 
 nand-zynq:
 - Add support for 16bit buswidth
 - Use address cycles from onfi params
 
 scsi:
 - convert ceva sata to UCLASS_AHCI
 
 timer:
 - Add Cadence TTC for ZynqMP r5
 
 watchdog:
 - Minor cadence driver cleanup
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Merge tag 'xilinx-for-v2018.07' of git://www.denx.de/git/u-boot-microblaze

Xilinx changes for v2018.07

microblaze:
- Align defconfig

zynq:
- Rework fpga initialization and cpuinfo handling

zynqmp:
- Add ZynqMP R5 support
- Wire and enable watchdog on zcu100-revC
- Setup MMU map for DDR at run time
- Show board info based on DT and cleanup IDENT_STRING

zynqmp tools:
- Add read partition support
- Add initial support for Xilinx bif format for boot.bin generation

mmc:
- Fix get_timer usage on 64bit cpus
- Add support for SD3.0 UHS mode

nand-zynq:
- Add support for 16bit buswidth
- Use address cycles from onfi params

scsi:
- convert ceva sata to UCLASS_AHCI

timer:
- Add Cadence TTC for ZynqMP r5

watchdog:
- Minor cadence driver cleanup
2018-05-11 11:45:28 -04:00
Tom Rini
c590e62d3b Merge git://git.denx.de/u-boot-fsl-qoriq 2018-05-11 07:09:21 -04:00
Michal Simek
1d6c54ecb3 arm: zynqmp: Add ZynqMP minimal R5 support
Xilinx ZynqMP also contains dual Cortex R5 which can run U-Boot.
This patch is adding minimal support to get U-Boot boot.
U-Boot on R5 runs out of DDR with default configuration that's why
DDR needs to be partitioned if there is something else running on arm64.
Console is done via Cadence uart driver and the first Cadence Triple
Timer Counter is used for time.

This configuration with uart1 was tested on zcu100-revC.

U-Boot 2018.05-rc2-00021-gd058a08d907d (Apr 18 2018 - 14:11:27 +0200)

Model: Xilinx ZynqMP R5
DRAM:  512 MiB
WARNING: Caches not enabled
MMC:
In:    serial@ff010000
Out:   serial@ff010000
Err:   serial@ff010000
Net:   Net Initialization Skipped
No ethernet found.
ZynqMP r5>

There are two ways how to run this on ZynqMP.
1. Run from ZynqMP arm64
tftpb 20000000 u-boot-r5.elf
setenv autostart no && bootelf -p 20000000
cpu 4 disable && cpu 4 release 10000000 lockstep
or
cpu 4 disable && cpu 4 release 10000000 split

2. Load via jtag when directly to R5

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-11 09:38:23 +02:00
Nitin Jain
0678941ae5 arm64: zynqmp: Setup MMU map for DDR at run time
This patch fills the MMU map for DDR at run time based on information read
from Device Tree or automatically detected from static configuration.

The patch is needed because for systems which has for example 1GB of memory
but MMU map is 2GB there could be spurious accesses which was seen in past
when mapping is not fitting with actual memory installed.

Signed-off-by: Nitin Jain <nitin.jain@xilinx.com>
Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-11 09:23:43 +02:00
Michal Simek
767afebbcd arm64: zynqmp: Enable cadence WDT for zcu100
Enable watchdog on zcu100 to make sure if there is a bug in the u-boot
there is proper reset.
Watchdog expires and PMU fw is informed and based on setting proper
action is taken.

The patch is enabling reset-on-timeout feature and also fixing fixed
clock rate for watchdog where 100MHz is max (and also default) clock value.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-11 09:23:43 +02:00
Siva Durga Prasad Paladugu
04ab29ab25 arm64: zynqmp: Add new defconfig for zc1275 revB
This patch enables support zc1275 revB board. It has
SD added compared to revA. The same configuration will
work for RevC boards aswell.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-11 09:23:43 +02:00
Michal Simek
0b4b82ad14 arm: zynq: Remove checkboard and enable DISPLAY_CPUINFO
Now that showing silicon version is part of the CPU
info display, let's remove checkboard().

Note that the generic show_board_info() will still
show the DT 'model' property. For instance:

U-Boot 2018.05-rc2-00025-g611b3ee0159b (Apr 19 2018 - 11:23:12 +0200)

CPU:   Zynq 7z045
Silicon: v1.0
Model: Zynq ZC706 Development Board
I2C:   ready

Based on patches from Ariel D'Alessandro <ariel@vanguardiasur.com.ar>,
and Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>

mini configuration doesn't need to show this information.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-11 09:23:43 +02:00
Michal Simek
4aba5fb857 arm: zynq: Rework FPGA initialization
This commit moves the FPGA descriptor definition
to mach-zynq, where it makes more sense.

Based on patches from Ariel D'Alessandro <ariel@vanguardiasur.com.ar>
and Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-11 09:23:43 +02:00
Michal Simek
57213c5f37 arm: zynq: Enable debug_uart_init in spl when enabled
In past this code was commented and was used for debug purpose.
But there is no reason not to enabled it based on macros.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-05-11 09:23:43 +02:00
Tom Rini
3aba3fd654 Merge git://git.denx.de/u-boot-socfpga 2018-05-10 22:57:41 -04:00
Tom Rini
f739fcd831 SPDX: Convert a few files that were missed before
As part of the main conversion a few files were missed.  These files had
additional whitespace after the '*' and before the SPDX tag and my
previous regex was too strict.  This time I did a grep for all SPDX tags
and then filtered out anything that matched the correct styles.

Fixes: 83d290c56f ("SPDX: Convert all of our single license tags to Linux Kernel style")
Reported-by: Heinrich Schuchardt <xypron.debian@gmx.de>
Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-10 20:38:35 -04:00
Hannes Schmelzer
7f1cb1d588 bootm: fix 'memory-fixup' for vxWorks boot
The check for having a memory node within the fdt blob is made wrong, we
fix this here.

Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
2018-05-10 20:38:34 -04:00
Marcel Ziswiler
6ab8a2b0ee apalis_t30: describe pcie ports
Add some more comments describing the various PCIe ports available.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2018-05-10 16:34:30 -07:00
Marcel Ziswiler
c0cb8c8e86 apalis-tk1: add missing as3722 gpio0 configuration
As the AS3722 GPIO0 is also a not connected on our Apalis TK1 module
explicitly configure it to high-impedance as well.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2018-05-10 16:34:20 -07:00
Tom Rini
e8f80a5a58 Merge git://git.denx.de/u-boot-sunxi 2018-05-09 12:58:06 -04:00
Hou Zhiqiang
8b40f22900 armv8/fsl-lsch2: make the workaround for PIN MUX erratum A010539 robust
Mask HRESET_B after cleared the the RCW_SRC, because in the workaround
we override the RCW_SRC and if HRESET_B is issued after the override
then SoC cannot find valid RCW as the RCW_SRC was overwritten and
result in hang. So we need to mask HRESET_B in case user asserts it,
and the PORESET_B should be asserted which leads to resampling of
cfg_rcw_src pins and loading of correct RCW_SRC.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2018-05-09 09:17:51 -05:00
Hou Zhiqiang
945fad57be armv8/fsl-lsch2: correct QMAN clock
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2018-05-09 09:17:51 -05:00
Sumit Garg
8044900a5b armv8: sec_firmware: Add support for multiple loadables
Enable support for multiple loadable images in SEC firmware FIT image.
Also add example "sec_firmware_ppa.its" file.

Signed-off-by: Sumit Garg <sumit.garg@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2018-05-09 09:17:51 -05:00
Ruchika Gupta
b6bb93de75 armv8: sec_firmware: Remove JR3 from device tree node in all cases
JR3 was getting removed from device tree only if random number
generation was successful. However, if SEC firmware is present,
JR3 should be removed from device tree node irrespective of the
random seed generation as SEC firmware reserves it for it's use.
Not removing it in case of random number generation failure causes
the kernel to crash.

Random number generation was being called twice. This is not
required. If SEC firmware is running, SIP call can be made to the SEC
firmware to get the random number. This call itself would return
failure if function is not supported. Duplicate calling of random
number generation function has been removed.

Signed-off-by: Ruchika Gupta <ruchika.gupta@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2018-05-09 09:17:51 -05:00
Sriram Dash
bda33d3c6c armv8: layerscape: Avoid code duplication for TZASC Instantiation
TZASC controller configurations are similar. Put them in a macro and
avoid code duplication.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
Signed-off-by: Sriram Dash <sriram.dash@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2018-05-09 09:17:51 -05:00
Grygorii Strashko
218ac107c5 arm: bitops: fix find_next_zero_bit() for case size < 32
find_next_zero_bit() incorrectly handles cases when:
- total bitmap size < 32
- rest of bits to process

static inline int find_next_zero_bit(void *addr, int size, int offset)
{
	unsigned long *p = ((unsigned long *)addr) + (offset >> 5);
	unsigned long result = offset & ~31UL;
	unsigned long tmp;

	if (offset >= size)
		return size;
	size -= result;
	offset &= 31UL;
	if (offset) {
		tmp = *(p++);
		tmp |= ~0UL >> (32-offset);
		if (size < 32)
[1]
			goto found_first;
		if (~tmp)
			goto found_middle;
		size -= 32;
		result += 32;
	}
	while (size & ~31UL) {
		tmp = *(p++);
		if (~tmp)
			goto found_middle;
		result += 32;
		size -= 32;
	}
[2]
	if (!size)
		return result;
	tmp = *p;

found_first:
[3]  tmp |= ~0UL >> size;

^^^ algo can reach above line from from points:
 [1] offset > 0 and size < 32, tmp[offset-1..0] bits set to 1
 [2] size < 32 - rest of bits to process
 in both cases bits to search are tmp[size-1..0], but line [3] will simply
 set all tmp[31-size..0] bits to 1 and ffz(tmp) below will fail.

example: bitmap size = 16, offset = 0, bitmap is empty.
 code will go through the point [2], tmp = 0x0
 after line [3] => tmp = 0xFFFF and ffz(tmp) will return 16.

found_middle:
	return result + ffz(tmp);
}

Fix it by correctly seting tmp[31..size] bits to 1 in the above case [3].

Fixes: 81e9fe5a29 ("arm: implement find_next_zero_bit function")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
2018-05-08 18:50:23 -04:00
Ramon Fried
707e6ef964 db410c: set clk node to be probed before relocation
The clock node is used by the serial driver and it's needed
before relocation.
This patch ensures that the msm-serial driver can actually
use the clock node.

Signed-off-by: Ramon Fried <ramon.fried@linaro.org>
2018-05-08 18:50:22 -04:00
Patrice Chotard
da33b0a1ca ARM: dts: sti: Add stih410-b2260-u-boot.dtsi
STiH410 has 2 PHYs wired on the DWC3 IP, USB2 and USB3 PHYs.
As currently no U-boot driver is available for the USB3 PHY and to avoid
issue during DWC3 drive probe, we use DWC3 IP with only USB2 PHY
using stih410-b2260-u-boot.dtsi file.

Fixes: 2fd4242cc5 ("ubs: xhci-dwc3: Enable USB3 PHY when available")

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-05-08 18:50:22 -04:00
Marek Vasut
34fc2a6edf ARM: socfpga: Add boot trampoline for Arria10
The Arria10 uses slightly different boot image header than the Gen5 SoCs,
in particular the header itself contains an offset from the start of the
header to which the Arria10 jumps. This offset must not be negative, yet
the header is placed at offset 0x40 of the bootable binary. Therefore, to
jump into U-Boot, add a trampoline just past the Arria10 boot header and
point to this trampoline at fixed offset from the header generated using
the mkimage -T socfpgaimage_v1 . Note that it is not needed to jump back
to offset 0x0 of the image, it is possible to jump directly at the reset
label and save processing two instructions.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Cc: Chin Liang See <chin.liang.see@intel.com>
2018-05-08 21:08:42 +02:00
Patrice Chotard
dbe2fcb87d ARM: dts: stm32mp157: Add vrefbuf DT node
Add vrefbuf device tree node. This allows to get
a voltage reference for ADCs.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-05-08 09:07:40 -04:00
Patrice Chotard
21299d3a68 ARM: dts: stm32mp157c-ed1: Add regulator node
Add regulator nodes needed by stpmu1 regulator driver
Add vmmc-supply and vqmmc-supply regulator property for
sdmmc1 and sdmmc2.

Signed-off-by: Christophe Kerello <christophe.kerello@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-05-08 09:07:39 -04:00
Patrice Chotard
7c339bbae6 ARM: dts: stm32mp157: Add SoC pwr regulator entry
Add SoC power regulator entry for reg11, reg18 and usb33
regulator.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-05-08 09:07:38 -04:00
Patrick Delaunay
e8b85e810a stm32mp: regulator: add SoC pwr regulator support
This driver binds and manages the following regulator of
SoC's PWR block :
  - reg11
  - reg18
  - usb33

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
2018-05-08 09:07:38 -04:00
Mario Six
cb61c9ec64 arm: controlcenterdc: Add spi-flash compatible strings
Since kirkwook SPI was recently converted to DM, add compatible strings
to the SPI flash devices to make them work with the new driver.

Signed-off-by: Mario Six <mario.six@gdsys.cc>
2018-05-08 09:07:37 -04:00
Praneeth Bajjuri
cd30f3fc9e arm: dra76: fastboot: extend cpu type for getvar command
'commit dda0bd674481 ("arm: dra762: Add support for device package identification")'
introduces ABZ and ACD package identification.

This patch is to extend usage of "fastboot getvar cpu" for
DRA76x ABZ and ACD devices.

Helps in fixing the boot warning.

Warning: fastboot.cpu: unknown CPU rev: 123863298
on
CPU  : DRA762-GP ES1.0 ABZ package
Model: TI AM5748 IDK
Board: AM574x IDK REV 1.0A

Signed-off-by: Praneeth Bajjuri <praneeth@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2018-05-08 09:07:37 -04:00
Ludovic Desroches
8ee54672df gpio: atmel_pio4: give a full configuration when muxing pins
When a pin is muxed to a peripheral or as a GPIO, the only
configuration that can be set is the pullup. It is too restrictive
so this patch allows to give a full configuration.

Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
2018-05-08 09:07:36 -04:00
Ludovic Desroches
cbccb33584 gpio: atmel_pio4: add drive strength macros
Macros for drive strength configuration were missing.

Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
2018-05-08 09:07:35 -04:00
Neil Armstrong
7d750c3520 ARM64: meson: Sync DT and Bindings with Linux 4.16
Synchronize the Linux Device Tree for Amlogic Meson GX boards from Linux 4.16.0.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2018-05-08 09:07:34 -04:00
Neil Armstrong
f0f3762cb7 ARM: meson: rename GXBB to GX
Taking into account the Amlogic Family name starts with GX, including
the GXBB, GXL and GXM SoCs.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2018-05-08 09:07:34 -04:00
Lokesh Vutla
a43d46a73c arm: v7R: Add support for enabling caches
Cache maintenance procedure is same for v7A and v7R
processors. So re-use cache-cp15.c file except for
mmu parts.

Tested-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2018-05-07 15:53:29 -04:00
Lokesh Vutla
f2ef204312 arm: v7R: Add support for MPU
The Memory Protection Unit(MPU) allows to partition memory into regions
and set individual protection attributes for each region. In absence
of MPU a default map[1] will take effect. Add support for configuring
MPU on Cortex-R, by reusing the existing support for Cortex-M processor.

[1] http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0460d/I1002400.html

Tested-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
2018-05-07 15:53:29 -04:00
Michal Simek
4bbd6b1d94 arm: v7R: Add initial support
The Cortex-R* processors are a mid-range CPUs for use in deeply-embedded,
real-time systems. It implements the ARMv7-R architecture, and includes
Thumb-2 technology for optimum code density and processing throughput.

Except for MPU(Memory Protection Unit) and few CP15 registers, most of the
features are compatible with v7 architecture. So,reuse the same armv7
folder and introduce a new config CPU_V7R in order to differentiate
from v7 based platforms.

Tested-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2018-05-07 15:53:28 -04:00