Newer firmware can manage the SDCDIV clock divisor register, allowing
the divisor to scale with the core as necessary.
Leverage this ability if the firmware supports it.
Adapted from the following raspberrypi Linux kernel commit:
bcm2835-sdhost: Firmware manages the clock divisor
08532d242d
Signed-off-by: Vincent Fazio <vfazio@xes-inc.com>
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
In rpi-firmware 25e2b597ebfb2495eab4816a276758dcc6ea21f1,
the GET_CLOCK_RATE mailbox property was changed to return the last
value set by SET_CLOCK_RATE.
https://github.com/raspberrypi/firmware/issues/1619#issuecomment-917025502
Due to this change in firmware behavior, bcm2835_get_mmc_clock now
returns a clock rate of zero since we do not issue SET_CLOCK_RATE.
This results in degraded MMC performance.
SET_CLOCK_RATE fixes the clock to a specific value and disables scaling
so is not an ideal solution.
Instead, fallback to GET_MAX_CLOCK_RATE in bcm2835_get_mmc_clock if
GET_CLOCK_RATE returns zero.
Signed-off-by: Vincent Fazio <vfazio@xes-inc.com>
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Add a return value to init_addr_map and use it directly in the
post-relocation init sequence, rather than using a wrapper stub.
Reviewed-by: Matthias Brugger <mbrugger@suse.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com>
Use this new Kconfig instead of OF_BOARD, so we know for sure which boards
obtain their devicetree from a prior stage. Leave sandbox alone since it
does not. Also don't touch xilinx_versal_virt since it does not have a
specific TARGET Kconfig.
This option implies OF_BOARD for now, but with future work standard
passage may be used instead.
Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Add rpi_4_32b and rpi_arm64 to the list of boards converted]
Signed-off-by: Tom Rini <trini@konsulko.com>
zynq:
- Enable capsule update for qspi and mmc
- Update zed DT qspi compatible string
zynqmp:
- Add missing modeboot for EMMC
- Add missing nand DT properties
- List all eeproms for SC on vck190
- Add vck190 SC psu_init
clk:
- Handle only GATE type clock for Versal
watchdog:
- Update versal driver to handle system reset
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Merge tag 'xilinx-for-v2022.01-rc1' of https://source.denx.de/u-boot/custodians/u-boot-microblaze into next
Xilinx changes for v2022.01-rc1
zynq:
- Enable capsule update for qspi and mmc
- Update zed DT qspi compatible string
zynqmp:
- Add missing modeboot for EMMC
- Add missing nand DT properties
- List all eeproms for SC on vck190
- Add vck190 SC psu_init
clk:
- Handle only GATE type clock for Versal
watchdog:
- Update versal driver to handle system reset
XHCI firmware upload must be performed only once after initializing the
PCI bridge. This fixes USB stack initialization after calling "usb stop;
usb start" on Raspberry Pi 4B.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Move the XHCI PCI device base up in the virtual address space. This fixes
initialization failure observed with newer Raspberry Pi firmware, later
than 63b1922311 ("firmware: arm_loader: Update armstubs with those from
PR 117). It looks that chosing 0xff800000 as the XHCI PCI device base
conflicts with the updated ARM/VideoCore firmware.
This also requires to reduce the size of the mapped PCI device region
from 8MiB to 4MiB to fit into 32bit address space. This is still enough
for the XHCI PCI device.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Nicolas Saenz Julienne <nsaenz@kernel.org>
Tested-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Historically, the reset_cpu() function had an `addr` parameter which was
meant to pass in an address of the reset vector location, where the CPU
should reset to. This feature is no longer used anywhere in U-Boot as
all reset_cpu() implementations now ignore the passed value. Generic
code has been added which always calls reset_cpu() with `0` which means
this feature can no longer be used easily anyway.
Over time, many implementations seem to have "misunderstood" the
existence of this parameter as a way to customize/parameterize the reset
(e.g. COLD vs WARM resets). As this is not properly supported, the
code will almost always not do what it is intended to (because all
call-sites just call reset_cpu() with 0).
To avoid confusion and to clean up the codebase from unused left-overs
of the past, remove the `addr` parameter entirely. Code which intends
to support different kinds of resets should be rewritten as a sysreset
driver instead.
This transformation was done with the following coccinelle patch:
@@
expression argvalue;
@@
- reset_cpu(argvalue)
+ reset_cpu()
@@
identifier argname;
type argtype;
@@
- reset_cpu(argtype argname)
+ reset_cpu(void)
{ ... }
Signed-off-by: Harald Seiler <hws@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Move this out of the common header and include it only where needed. In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly. Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
Create a non-cacheable mapping for the 0x600000000 physical memory region,
where MMIO registers for the PCIe XHCI controller are instantiated by the
PCIe bridge. Due to 32bit limit in the CPU virtual address space in ARM
32bit mode, this region is mapped at 0xff800000 CPU virtual address.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
On the Raspberry Pi 4, after a PCI reset, VL805's (a xHCI chip) firmware
may either be loaded directly from an EEPROM or, if not present, by the
SoC's VideCore (the SoC's co-processor). Introduce the function that
informs VideCore that VL805 may need its firmware loaded.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Create a non-cacheable mapping for the 0x600000000 physical memory region,
where MMIO registers for the PCIe XHCI controller are instantiated by the
PCIe bridge.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Remove the overlap between DRAM and device's IO area.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Move this header out of the common header. Network support is used in
quite a few places but it still does not warrant blanket inclusion.
Note that this net.h header itself has quite a lot in it. It could be
split into the driver-mode support, functions, structures, checksumming,
etc.
Signed-off-by: Simon Glass <sjg@chromium.org>
While the nearly-universal default for the Raspberry Pi family is to use
spin tables and the spin table implementation provided by the Raspberry Pi
Foundation, FreeBSD and others may use a PSCI implementation instead.
Accommodate these setups by allowing them to configure for more than one
page to be reserved in the initial reservation. The default reservation
remains as one page.
Signed-off-by: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Some of the devices(for instance, pcie and gnet controller) sitting on
SCB bus falls behind/below the memory range that we currenty have.
This patch updates the memory range to map those devices correctly.
Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Tested-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
These functions are CPU-related and do not use driver model. Move them to
cpu_func.h
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
These functions belong in cpu_func.h. Another option would be cache.h
but that code uses driver model and we have not moved these cache
functions to use driver model. Since they are CPU-related it seems
reasonable to put them here.
Move them over.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Provide a defconfig which allows us to boot Raspberrry Pi 4
and Raspberry Pi 3 Model B/B+
Instead of using the embedded DTB as done in RPi3 we use the
devicetree provided by the firmware.
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
For bcm283x based on arm64 we also have to change the mm_region.
Add assign this in mach_cpu_init() so we can create now one binary
for RPi3 and RPi4.
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
As part of the effort to create one binary for several bcm83x SoCs
we read the IO base address from device-tree.
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
We move the per SOC define BCM283x_BASE to a global variable.
This is a first step to provide a single binary for several bcm283x
SoCs.
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Add get_timer_us(), which is useful e.g. when we need higher
precision timestamps.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Simon Glass <sjg@chromium.org>
[trini: Fixup arch/arm/mach-bcm283x/include/mach/timer.h]
Signed-off-by: Tom Rini <trini@konsulko.com>
This clock has a different mbox ID so have this included in the relevant
header file.
Signed-off-by: Andrei Gherzan <andrei@balena.io>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Define two target configs for Raspberry Pi 4 (32 and 64bit) and the
corresponding BCM2838* configs.
Be aware of the current limitation in firmware which requires an
explicit configuration to force the arm in 64bit mode when the
respective target is used.
Signed-off-by: Andrei Gherzan <andrei@balena.io>
[mb: rename BCM2838 -> BCM2711]
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Devices of bcm283x have different base address, depending if they are on
bcm2835 or bcm2836/7. Use BCM283x_BASE depending on the SoC you want to
build and only add the offset in the header files.
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: Andrei Gherzan <andrei@balena.io>
Before we can send a message to the mailbox we have to check that there
is space to do so. Therefore we poll the status register. But up to now
the wrong status register, the one of mailbox 0, was checked. Fix this
by polling the status regiser of mailbox 1.
Signed-off-by: Fabian Vogt <fvogt@suse.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
[mb: rename registers and update commit message]
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
The BCM2835/2836 watchdog is not used in mainline U-Boot at all. This
patch removes the driver and its references (CONFIG_BCM2835_WDT)
completely.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Paolo Pisati <p.pisati@gmail.com>
We currently handle the UEFI runtime reset / power off case handling via
a switch statement. Compilers (gcc in my case) may opt to handle these via
jump tables which they may conveniently put into .rodata which is not part
of the runtime section, so it will be unreachable when executed.
Fix this by just converting the switch statement into an if/else statement.
It produces smaller code that is faster and also correct because we no
longer refer .rodata from efi runtime code.
Reported-by: Andreas Färber <aferber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
Currently CPU_V7 kconfig symbol supports only ARMv7A architectures under
armv7 folder. This led to a misconception of creating separate folders
for armv7m and armv7r. There is no reason to create separate folder for
other armv7 based architectures when it can co-exist with few Kconfig
symbols.
As a first step towards a common folder, rename CPU_V7 as CPUV7A. Later
separate Kconfig symbols can be added for CPU_V7R and CPU_V7M and
can co exist in the same folder.
Reviewed-by: Tom Rini <trini@konsulko.com>
Tested-by: Michal Simek <michal.simek@xilinx.com>
Suggested-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.
In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.
This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.
Signed-off-by: Tom Rini <trini@konsulko.com>
Highlights this time around:
- Lots of minor spec compliance fixes
- Support full range of GOP BLT commands
- More fine grained error checking
- Network fixes (init, DP)
- Lots of other bug fixes...
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Merge tag 'signed-efi-next' of git://github.com/agraf/u-boot
Patch queue for efi - 2018-04-09
Highlights this time around:
- Lots of minor spec compliance fixes
- Support full range of GOP BLT commands
- More fine grained error checking
- Network fixes (init, DP)
- Lots of other bug fixes...
In raspberrypi-firmware 7fdcd00e00a42a1c91e8bd6f5eb8352fe9358557 and
later start.elf now sets the EMMC clock to 200 MHz.
According to Phil Elwell in
https://github.com/raspberrypi/firmware/issues/953
the SDHost controller shares the core/VPU clock and doesn't use
the EMMC clock.
Use the core clock id when determining the frequency to allow
U-Boot to work with recent versions of raspberrypi-firmware.
Otherwise U-Boot hangs at:
U-Boot 2018.03 (Mar 14 2018 - 20:36:00 +1100)
DRAM: 948 MiB
RPI 3 Model B (0xa02082)
MMC: mmc@7e202000: 0, sdhci@7e300000: 1
Loading Environment from FAT...
Signed-off-by: Jonathan Gray <jsg@jsg.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
EFI_RESET_PLATFORM_SPECIFIC is one of the values that can be used for the
EFI service ResetSystem. The missing definition is added. The value has to
handled in efi_reset_system().
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
efi_reset_system_init provides the architecture or board specific
initialization of the EFI subsystem. Errors should be caught and
signalled by a return code.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
The bcm283x family of SoCs have a GPIO controller that also acts as
pinctrl controller.
This patch introduces a new pinctrl driver that can actually properly mux
devices into their device tree defined pin states and is now the primary
owner of the gpio device. The previous GPIO driver gets moved into a
subdevice of the pinctrl driver, bound to the same OF node.
That way whenever a device asks for pinctrl support, it gets it
automatically from the pinctrl driver and GPIO support is still available
in the normal command line phase.
Signed-off-by: Alexander Graf <agraf@suse.de>
Add a function to set the video parameters to the msg handler and remove
it from the video driver.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
