In the presence of potentially fragemented memory, we cannot hard-code
addresses into environment variables such as kernel_addr_r. Instead, we
must calculate those addresses at run-time based on available memory
locations. Implement the code to perform such runtime calculation, based
on requirements described in environment variables, to allow the user
full control over the allocation.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Tegra186 currently restricts its DRAM usage to entries in the /memory node
in the DTB passed to it. However, the MMU configuration always maps the
entire first 2GB of RAM. This could allow the CPU to speculatively access
RAM that isn't part of the in-use banks. This patch switches to runtime
construction of the table that's used to construct the MMU translation
tables, and thus prevents access to RAM that's not part of a valid bank.
Note: This patch is intended to prevent access to RAM regions which U-Boot
does not need to access, with the primary purpose of avoiding theoretical
speculative access to physical regions for which the HW will throw errors
(e.g. carve-outs that the CPU has no permission to access at a bus level,
bad ECC pages, etc.). In particular, this patch is not deliberately
related to the speculation-related security issues that were recently
announced. The apparent similarity is a coincidence.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
In the future, the list of DRAM regions passed to U-Boot in the DTB may
be quite long and fragmented. Due to this, U-Boot must search through the
regions to find the best region to relocate into, rather than relying on
the current assumption that the top of bank 0 is a reasonable relocation
target. This change implements such searching.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
arch_lmb_reserve() currently assumes that the stack pointer is within DRAM
bank 0. This is not necessarily true. Enhance the code to search through
DRAM banks until the bank that does contain SP is found, and then reserve
the tail of that bank.
Fixes: 2d1916e48b ("ARM: add flat device tree support")
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Apply a few small fixes for the DTB /memory node parsing from NVIDIA's
downstream U-Boot:
- Allow arbitrary number of DRAM banks.
- Correctly calculate the number of DRAM banks.
- Clip PCIe memory in the same way as U-Boot CPU memory use.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Enable CONFIG_LINUX_KERNEL_IMAGE_HEADER for all 64-bit Tegra boards.
cboot (the boot SW that runs before U-Boot) will eventually use this
information.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Allow placing a Linux kernel image header at the start of the U-Boot
binary. This is useful since the image header reports the amount of memory
(BSS and similar) that U-Boot needs to use, but that isn't part of the
binary size. This can be used by the code that loads U-Boot into memory to
determine where to load U-Boot, based on other users of memory.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Enable CONFIG_SYS_INIT_SP_BSS_OFFSET for all 64-bit Tegra boards. Place
the stack/... 512KiB from the end of the U-Boot binary. This should be
plenty to accommodate the current DTBs (max 64 KiB), early malloc region
(6KiB), stack usage, and plenty of slack, while still not placing it too
far away from the U-Boot binary.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
U-Boot typically uses a hard-coded value for the stack pointer before
relocation. Implement option SYS_INIT_SP_BSS_OFFSET to instead calculate
the initial SP at run-time. This is useful to avoid hard-coding addresses
into U-Boot, so that can be loaded and executed at arbitrary addresses and
thus avoid using arbitrary addresses at runtime. This option's value is
the offset added to &_bss_start in order to calculate the stack pointer.
This offset should be large enough so that the early malloc region, global
data (gd), and early stack usage do not overlap any appended DTB.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
64-bit Tegra don't use SPL, and soon won't define CONFIG_SPL_TEXT_BASE
when building. Fix the binman .dts file so that it doesn't use undefined
values.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Support common commands bdinfo and image format,
also modify common generic flow for RISC-V.
Signed-off-by: Rick Chen <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
Signed-off-by: Greentime Hu <green.hu@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Add Kconfig and makefile for RISC-V
Also modify MAINTAINERS for it.
Signed-off-by: Rick Chen <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
Signed-off-by: Greentime Hu <green.hu@gmail.com>
Cc: Padmarao Begari <Padmarao.Begari@microsemi.com>
Add header files for RISC-V.
Cache, ptregs, data type and other definitions are included.
Signed-off-by: Rick Chen <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
Signed-off-by: Greentime Hu <green.hu@gmail.com>
AE250 is the Soc using NX25 cpu core base on RISC-V arch.
Details please see the doc/README.ae250.
Signed-off-by: Rick Chen <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
Signed-off-by: Greentime Hu <green.hu@gmail.com>
Add makefile, interrupts.c and boot.c,... functions
to support RISC-V arch.
Signed-off-by: Rick Chen <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
Signed-off-by: Greentime Hu <green.hu@gmail.com>
Cc: Padmarao Begari <Padmarao.Begari@microsemi.com>
Add Andes nx25 cpu core (called AndesStar V5) to support RISC-V arch
Verifications:
1. startup and relocation ok.
2. boot from rom or ram both ok.
2. timer driver ok.
3. uart driver ok
4. mmc driver ok
5. spi driver ok.
6. 32/64 bit both ok.
Detail verification message please see doc/README.ae250.
Signed-off-by: Rick Chen <rick@andestech.com>
Signed-off-by: Rick Chen <rickchen36@gmail.com>
Signed-off-by: Greentime Hu <green.hu@gmail.com>
Cc: Padmarao Begari <Padmarao.Begari@microsemi.com>
Compile-off mp.c and libfdt.c in case of SPL build. SPL size reduces
by approx 2k.
Signed-off-by: Sumit Garg <sumit.garg@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
855873: An eviction might overtake a cache clean operation
Workaround: The erratum can be avoided by upgrading cache clean by
address operations to cache clean and invalidate operations. For
Cortex-A53 r0p3 and later release, this can be achieved by setting
CPUACTLR.ENDCCASCI to 1.
This patch is to implement the workaround for this erratum.
Signed-off-by: Alison Wang <alison.wang@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
This patch adds changes necessary to move functionality present in
PowerPC folders with ARM architectures that have DPAA1 QBMan hardware
- Create new board/freescale/common/fsl_portals.c to house shared
device tree fixups for DPAA1 devices with ARM and PowerPC cores
- Add new header file to top includes directory to allow files in
both architectures to grab the function prototypes
- Port inhibit_portals() from PowerPC to ARM. This function is used in
setup to disable interrupts on all QMan and BMan portals. It is
needed because the interrupts are enabled by default for all portals
including unused/uninitialised portals. When the kernel attempts to
go to deep sleep the unused portals prevent it from doing so
Signed-off-by: Ahmed Mansour <ahmed.mansour@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
Sata registers PP2C and PP3C are used to control the configuration
of the PHY control OOB timing for the COMINIT/COMWAKE parameters
respectively. Calculate those parameters from port clock frequency.
Overwrite those registers with calculated values to get better OOB
timing.
Signed-off-by: Tang Yuantian <andy.tang@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
Given gcc-6.1 and later we can now safely have strings discarded when
the functions are unused. This lets us drop certain cases of not
building something so that we don't have the strings brought in when the
code was discarded. Simplify the code now by dropping guards we don't
need now.
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Chander Kashyap <k.chander@samsung.com>
Cc: Thomas Abraham <thomas.ab@samsung.com>
Cc: Vipin Kumar <vipin.kumar@st.com>
Cc: Wenyou Yang <wenyou.yang@microchip.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
BCM2835 ARM Peripherals doc shows gpio pins 4, 5, 6, 12 and 13 carry altenate
function, ALT5 for ARM JTAG
Signed-off-by: Henry Zhang <henryzhang62@yahoo.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Add DT nodes to enable ARM_PL180_MMCI IP support for STM32F746
and STM32F769 discovery boards
There is a hardware issue on these boards, it misses a pullup on the GPIO line
used as card detect to allow correct SD card detection.
As workaround, cd-gpios property is not present in DT.
So SD card is always considered present in the slot.
Signed-off-by: Christophe Priouzeau <christophe.priouzeau@st.com>
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This board offers :
_ STM32F469NIH6 microcontroller featuring 2 Mbytes of Flash memory
and 324 Kbytes of RAM in BGA216 package
_ On-board ST-LINK/V2-1 SWD debugger, supporting USB reenumeration capability:
_ Mbed-enabled (mbed.org)
_ USB functions: USB virtual COM port, mass storage, debug port
_ 4 inches 800x480 pixel TFT color LCD with MIPI DSI interface and capacitive
touch screen
_ SAI Audio DAC, with a stereo headphone output jack
_ 3 MEMS microphones
_ MicroSD card connector
_ I2C extension connector
_ 4Mx32bit SDRAM
_ 128-Mbit Quad-SPI NOR Flash
_ Reset and wake-up buttons
_ 4 color user LEDs
_ USB OTG FS with Micro-AB connector
_ Three power supply options:
_ Expansion connectors and Arduino™ UNO V3 connectors
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
This DT file comes from kernel v4.15-rc1
stm32f469-pinctrl.dtsi header has been updated with correct
STMicroelectronics Copyright.
Remove the paragraph about writing to the Free Software
Foundation's mailing address as requested by checkpatch.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Use available DM stm32f7_gpio.c and pinctrl_stm32.c drivers
instead of board GPIO initialization.
Remove stm32_gpio.c which is no more used and migrate
structs stm32_gpio_regs and stm32_gpio_priv into
arch-stm32f4/gpio.h to not break compilation.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Use available DM clk_stm32f.c driver instead of dedicated
mach-stm32/stm32f4/clock.c.
Migrate periph_clock defines from stm32_periph.h directly in
CLK driver. These periph_clock defines will be removed when STMMAC,
TIMER2 and SYSCFG drivers will support DM CLK.
Enable also CLK flag.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
In order to use common clock driver between STM32F4 and
STM32F7, remove clock_get() call
As APB_PSC is always set to 2, only case when
clock_get(CLOCK_AHB) != clock_get(CLOCK_APB1) is kept
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Remove serial_stm32.c driver and uart init from board file,
use available DM serial_stm32x7.c driver compatible for
STM32F4/F7 and H7 SoCs.
The serial_stm32x7.c driver will be renamed later with a more
generic name as it's shared with all STM32 Socs.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
_ Add gpio compatible and aliases for stm32f429
_ Add FMC sdram node with associated new bindings value to
manage second bank (ie bank 1).
_ Add "u-boot,dm-pre-reloc" for rcc, fmc, fixed-clock, pinctrl,
pwrcfg and gpio nodes.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
All these files comes from kernel v4.15-rc1.
Update some header with correct STMicroelectronics Copyright.
Remove the paragraph about writing to the Free Software
Foundation's mailing address as requested by checkpatch.
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
The DB-88F6820-AMC connects ethernet@34000 and ethernet@70000 which are
labeled as eth2 and eth0 in armada-38x.dts. The ethernet@30000 (eth1) is
not used on the AMC board.
This eliminates the following bootup message
Device 'ethernet@70000': seq 0 is in use by 'ethernet@34000'
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
this patch enable rockusb support on rk3288 based device.
Signed-off-by: Eddie Cai <eddie.cai.linux@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
this patch implement rockusb protocol on the device side. this is based on
USB download gadget infrastructure. the rockusb function implements the rd,
wl, rid commands. it can work with rkdeveloptool
Signed-off-by: Eddie Cai <eddie.cai.linux@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Commit 8620f38409 ("dm: sunxi: Linksprite_pcDuino3: Correct polarity
of MMC card detect") claims that the Pcduino3 device tree had an
incorrect polarity for the card detect pin and thus changed the polarity
flag of the cd-gpios from GPIO_ACTIVE_HIGH to GPIO_ACTIVE_LOW.
Actually the DT was correct since according to the mmc binding, a
combination of GPIO_ACTIVE_HIGH + cd-inverted results in an active-low
polarity. But because the U-Boot driver lacks the code to look at the
cd-inverted property (unlike the Linux driver) it interpreted the
polarity of active-high. Thus, after that commit the DT is actually
wrong from the binding/Linux point of view.
To make both Linux and U-Boot interpret the DT in the same way, just
drop the left-over cd-inverted property. I've sent a Linux patch to
switch all sunxi DTs over to not using the cd-inverted property, so
eventually all sunxi boards in U-Boot will be consistent in not using
cd-inverted.
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
The Libre Computer Board ALL-H3-CC from Libre Technology is a Raspberry
Pi B+ form factor single board computer based on the Allwinner H3 SoC.
The board has 1GB DDR3 SDRAM, provided by 4 2Gb chips. The mounting holes
and connectors are in the exact same position as on the Raspberry Pi B+.
Raspberry Pi B+ like peripherals supported on this board include:
- Power input through micro-USB connector (without USB OTG)
- Native 100 Mbps ethernet using the internal PHY, as opposed to
USB-based on the RPi
- 4x USB 2.0 host ports, directly connected to the SoC, as opposed to
being connected through a USB 2.0 hub on the RPi
- TV and audio output on a 3.5mm TRRS jack
- HDMI output
- Micro-SD card slot
- Standard RPi B+ GPIO header, with the standard peripherals routed to
the same pins.
* 5V, 3.3V power, and ground
* I2C0 on the H3 is routed to I2C1 pins on the RPi header
* I2C1 on the H3 is routed to I2C0 pins on the RPi header
* UART1 on the H3 is routed to UART0 pins on the RPi header
* SPI0 on the H3 is routed to SPI0 pins on the RPi header,
with GPIO pin PA17 replacing the missing Chip Select 1
* I2S1 on the H3 is routed to PCM pins on the RPi header
- Additional peripherals from the H3 are available on different pins.
These include I2S0, JTAG, PWM1, SPDIF, SPI1, and UART3
In addition, there are a number of new features:
- Console UART header
- Consumer IR receiver
- Camera interface (not compatible with RPi)
- Onboard microphone
- eMMC expansion module port
- Heatsink mounting holes
This patch adds defconfig and dts files for this board. The dts file is
the same as the one submitted for inclusion in Linux, with some minor
revisions to match the dtsi file and old EMAC bindings in U-boot.
Since the OTG controller is wired to a USB host port, and the H3 has
proper USB hosts to handle host mode, the MUSB driver is not enabled.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
By applying this patch, we are ensuring that the code paths
responsible for applying errata workarounds are also exercised
on CPU revisions, which actually don't need these workarounds.
Only CONFIG_ARM_ERRATA_621766, CONFIG_ARM_ERRATA_454179,
CONFIG_ARM_ERRATA_725233 and CONFIG_ARM_ERRATA_430973 are
covered by this patch (Cortex-A8).
This improves code coverage when testing U-Boot builds
on newer hardware. In particular, the problematic commit
00bbe96eba ("arm: omap: Unify get_device_type() function")
would break both BeageBoard and BeagleBoard XM rather than
just older BeagleBoard.
As an additional bonus, we need fewer instructins and the SPL
size is reduced.
Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
