In a system where the initial u-boot location is genuinely NOR flash (as
opposed to RAM or a cache-line setup by a pre-bootloader) writes to the
data section are problematic. At best these writes have no effect, at
worst they put the flash memory into a status mode which changes the
executable code underneath us.
Pass around a stack variable from the top of the twsi i2c driver to
avoid writing to global data.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
The DW I2C controller in the SPEAr SoCs doesn't support the enable
status register check. This patch selects
SYS_I2C_DW_ENABLE_STATUS_UNSUPPORTED for these boards.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Heiko Schocher <hs@denx.de>
This patch adds an entry for the Designware I2C driver in Kconfig.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Some platforms don't implement the enable status register at offset 0x9c.
The SPEAr600 platform is one of them. The recently added check to this
status register can't be performend on these platforms.
This patch introduces a new config option that can be enabled on such
platforms not supporting this register.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Reviewed-by: Heiko Schocher <hs@denx.de>
Add support for common TI i2c mux which is available on ZynqMP zcu102
board.
DM i2c mux core code is selecting/deselecting bus before/after
every command is performed that's why only one channel is active at a
time. That's also the reason why deselect is just disable all available
channels.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
400kHz is maximum freq which can be used on Xilinx ZynqMP.
Support it with standard divider calculator.
Input freq is hardcoded to 100MHz input freq till we have clock driver
which can provide this information for exact configuration.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
set_bus_speed is the right function where bus speed should be setup.
This move enable option to remove probe and remove functions which are
empty.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Extract reading IP base address in function which is designed for it.
Also enable option to read more information from DT in this function.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Reported by Coverity:
Logically dead code (DEADCODE)
dead_error_line: Execution cannot reach this statement:
(f_dfu->strings + --i).s = ....
If calloc failed, i is still 0 and no need to call free,
so discard the dead code.
Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: "Łukasz Majewski" <l.majewski@samsung.com>
Cc: Marek Vasut <marex@denx.de>
When dfu_fill_entity fail, need to free dfu to avoid memory leak.
Reported by Coverity:
"
Resource leak (RESOURCE_LEAK)
leaked_storage: Variable dfu going out of scope leaks the storage
it points to.
"
Signed-off-by: Peng Fan <van.freenix@gmail.com>
Cc: "Łukasz Majewski" <l.majewski@samsung.com>
Cc: Marek Vasut <marex@denx.de>
With patch c998da0d (usb: Change power-on / scanning timeout handling),
the USB scanning is started earlier and with a smaller timeout. This
resulted on SoCFPGA (using the DWC2 driver) in some USB sticks not
getting detected any more. This patch now adds a 1 second delay (in
the host mode only) to the DWC2 driver before the scanning is started.
With this delay, now all problematic USB keys are detected successfully
again. And there is no need any more to change the delay / timeout
in the common USB code (usb_hub.c).
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Marek Vasut <marex@denx.de>
The indirect read code is a pile of nastiness. This patch replaces
the whole unmaintainable indirect read implementation with the one
from upcoming Linux CQSPI driver, which went through multiple rounds
of thorough review and testing. All the patch does is it plucks out
duplicate ad-hoc code distributed across the driver and replaces it
with more compact code doing exactly the same thing. There is no
speed change of the read operation.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Jagan Teki <jteki@openedev.com>
Cc: Pavel Machek <pavel@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Vignesh R <vigneshr@ti.com>
The indirect write code is buggy pile of nastiness which fails horribly
when the system runs fast enough to saturate the controller. The failure
results in some pages (256B) not being written to the flash. This can be
observed on systems which run with Dcache enabled and L2 cache enabled,
like the Altera SoCFPGA.
This patch replaces the whole unmaintainable indirect write implementation
with the one from upcoming Linux CQSPI driver, which went through multiple
rounds of thorough review and testing. While this makes the patch look
terrifying and violates all best-practices of software development, all
the patch does is it plucks out duplicate ad-hoc code distributed across
the driver and replaces it with more compact code doing exactly the same
thing.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Jagan Teki <jteki@openedev.com>
Cc: Pavel Machek <pavel@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Vignesh R <vigneshr@ti.com>
There could be runtime determined board specific reason why a EHCI
initialization fails (e.g. ENODEV if a Port is not available). In
this case, properly return the error code.
While at it, that function (board_ehci_hcd_init) has actually two
documentation blocks... Use the correct function name for the
documentation block of board_usb_phy_mode.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Tegra20's PCIe controller has a couple of quirks. There are workarounds in
the driver for these, but they don't work after the DM conversion:
1) The PCI_CLASS value is wrong in HW.
This is worked around in pci_tegra_read_config() by patching up the value
read from that register. Pre-DM, the PCIe core always read this via a
16-bit access to the 16-bit offset 0xa. With DM, 32-bit accesses are used,
so we need to check for offset 0x8 instead. Mask the offset value back to
32-bit alignment to make this work in all cases.
2) Accessing devices other than dev 1 causes a data abort.
Pre-DM, this was worked around in pci_skip_dev(), which the PCIe core code
called during enumeration while iterating over a bus. The DM PCIe core
doesn't use this function. Instead, enhance tegra_pcie_conf_address() to
validate the bdf being accessed, and refuse to access invalid devices.
Since pci_skip_dev() isn't used, delete it.
I've also validated that both these WARs are only needed for Tegra20, by
testing on Tegra30/Cardhu and Tegra124/Jetson TKx. So, compile them in
conditionally.
Fixes: e81ca88451 ("dm: tegra: pci: Convert tegra boards to driver model for PCI")
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
Memset pools_params as "0" to avoid garbage value in dpni_set_pools.
Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reported-by: Jose Rivera <german.rivera@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Initialize desc_before_addr, otherwise the USB core won't send the
first 64B Get Device Descriptor request in common/usb.c function
usb_setup_descriptor() . There are some USB devices which expect
this sequence and otherwise can misbehave.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Tom Rini <trini@konsulko.com>
Introduce a new flag in the controller private data, which allows selectively
disabling the OC protection. Use the standard 'disable-over-current' OF prop
to set this flag. This OC protection must be disabled on EBV SoCrates rev 1.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Introduce a boolean flag in the dwc2 controller private data and set
it according to the macro (for now) instead of having this macro
directly in the dwc_otg_core_init(). This will let us configure the
flag from DT or such later on, if needed.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Dinh Nguyen <dinguyen@kernel.org>
Pass the whole bulk of private data instead of just the regs,
since the private data will soon contain important configuration
flags.
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Dinh Nguyen <dinguyen@kernel.org>
The DMA was outputting the palette on the screen because the base
for the DMA was not after the palette. In addition to that, the ceiling was
also too high, this led that the output on the screen was shifted.
NOTE: According to the TRM, even in 16/24bit mode a palette is required
in the first 32 bytes of the framebuffer.
See also:
https://e2e.ti.com/support/arm/sitara_arm/f/791/p/234967/834483#834483
"In this mode, the LCDC will assume all information is data and thus you
need to ensure that the DMA points to the first pixel of data and not the
first entry in the frame buffer which is the beginning of the 512 byte
palette."
Signed-off-by: Martin Pietryka <martin.pietryka@chello.at>
Reviewed-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Tested-by: Hannes Schmelzer <oe5hpm@oevsv.at>
To support 16bpp we just need to change the raster_ctrl register
accordingly. Also 32bpp mode should work as well, but was not tested.
According to the TRM the uppermost byte will be ignored when
LCD_TFT_24BPP_UNPACK is set.
The switch logic is based on the Linux kernel tilcdc driver:
drivers/gpu/drm/tilcdc/tilcdc_crtc.c: lines 407 through 419
(kernel was checked out at commit: bcc981e9ed8)
Signed-off-by: Martin Pietryka <martin.pietryka@chello.at>
Reviewed-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Tested-by: Hannes Schmelzer <oe5hpm@oevsv.at>
According to the TRM you have to set bits [21:20] to 0b10 for RAW mode, so
(0x10 << 20) is obviously wrong here.
Signed-off-by: Martin Pietryka <martin.pietryka@chello.at>
The terminal condition in the area where a PCI device is scanned is wrong,
and 1f.7 isn't scanned.
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
This allows to drop annoying (char *) casts when setting the host
name of struct sdhci_host.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
get_timer() returns an unsigned 64-bit value, but is currently assigned to
a signed 32-bit variable. Due to sign extension and data truncation, this
causes the timeout loop in spi_flash_cmd_wait_ready() to immediately (and
incorrectly) fire for about 50% of all time values, based on whether bit
31 is set. In sandbox at least, this causes the test to pass or fail based
on system uptime, as opposed to time since the U-Boot binary was started.
Fixes: 4efad20a17 ("sf: Update status reg check in spi_flash_cmd_wait_ready")
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
U-Boot typically interprets unprefixed numbers as base 16, and DFU RAM
entity parsing has historically done so. Reverse the change to default
to base 10, so that values in previously working command-lines aren't
mis-parsed, causing RAM corruption, crashes, hangs, etc.
Fixes: 6aeb877afef0 ("drivers: dfu: ram: fix a crash with dfu ram with invalid dfu_alt_info env")
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Cc: Tom Rini <trini@konsulko.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Tested-by: Mugunthan V N <mugunthanvnm@ti.com>
[Test HW: AM335x BBB]
U-Boot crashes when an invalid dfu_alt_info is set and tried
using dfu command. Fixing this as it is handled in dfu-mmc.
=> dfu 0 ram 0
data abort
pc : [<9ff893d6>] lr : [<9ff6edb9>]
reloc pc : [<808323d6>] lr : [<80817db9>]
sp : 9ef36cf0 ip : 00000158 fp : 9ffbc0b8
r10: 9ffbc0b8 r9 : 9ef36ed8 r8 : 00000000
r7 : 00000000 r6 : 9ffbc0c8 r5 : 9ef36cfc r4 : 9ef392c8
r3 : 00000004 r2 : 00000000 r1 : 9ff9a985 r0 : ffffffff
Flags: Nzcv IRQs off FIQs on Mode SVC_32
Resetting CPU ...
resetting ...
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Remaining bytes means bytes that are not yet transferred
and not the bytes that were transferred in the last transfer.
Reported-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Tested-by: Steve Rae <srae@broadcom.com>
[Test HW: bcm28155_ap board]
Request size can be greater than ep.packet and still end in a
short packet. We need to tackle this case as end of transfer
(if short_not_ok is not set) as indicated in USB 2.0 Specification [1],
else we get stuck up on certain protocols like fastboot.
[1] - USB2.0 Specification, Section 5.3.2 Pipes
Reported-by: Steve Rae <steve.rae@broadcom.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Tested-by: Steve Rae <steve.rae@broadcom.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Just use ep->maxpacket to get the maxpacket size
and simplify the bulk-out maxpacket alignment.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Tested-by: Steve Rae <srae@broadcom.com>
In a dual speed configuration we need to check at runtime if
we want to enable the Full-Speed or High-Speed endpoint.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Steve Rae <srae@broadcom.com>
[Test HW: bcm235xx board]
wMaxPacketSize for IN endpoing in High-Speed must be 512 and not 64.
While fixing that we do some clean ups like
- use cpu_to_le16(decimal_length) instead of hexadecimal length.
- No need to initialize bInterval to 0. Static variables are 0 initialized.
- Move descriptor setting from fastboot_add to to fastboot_bind.
- check for dual speed configuration before setting the high speed descriptors.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Tested-by: Steve Rae <srae@broadcom.com>
Tested-by: Steve Rae <srae@broadcom.com> [Test HW: bcm235xx board]
