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This function will be used by the Marvell Armada XP/38x PCIe driver,
which is moved to DM right now. So let's extract the functionality
from pci_uclass_child_post_bind() to make it available.
Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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Add the dts fixup when PCI controller work diffferent mode.
Signed-off-by: Xiaowei Bao <xiaowei.bao@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
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Don't scan the bus when the PEX work in EP mode.
Signed-off-by: Xiaowei Bao <xiaowei.bao@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
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Modify the RC and EP mode judge method, save the mode as a variable,
the variable will be used by other function.
Signed-off-by: Xiaowei Bao <xiaowei.bao@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
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At present line_length is always calculated in video_post_probe(). But
some hardware may use a different line length, e.g. with a 1366-wide
display.
Allow the driver to set this value if needed.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Anatolij Gustschin <agust@denx.de>
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As the PCIe specification recommend reading the Vendor ID register
to determine if a Function is present, read the Vendor ID of a
non-existent Function must not result in system error, so we'd better
make the first CFG read to Vendor ID instead of Header Type register
in the PCIe enumeration.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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This introduces two new APIs dm_pci_find_next_capability() and
dm_pci_find_next_ext_capability() to get PCI capability address
and PCI express extended capability address for a given PCI device
starting from a given offset.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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The PCI controller can have DT subnodes describing extra properties
of particular PCI devices, ie. a PHY attached to an EHCI controller
on a PCI bus. This patch parses those DT subnodes and assigns a node
to the PCI device instance, so that the driver can extract details
from that node and ie. configure the PHY using the PHY subsystem.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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Add some logging on failure.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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In int-ll64.h, we always use the following typedefs:
typedef unsigned int u32;
typedef unsigned long uintptr_t;
typedef unsigned long long u64;
This does not need to match to the compiler's <inttypes.h>.
Do not include it.
The use of PRI* makes the code super-ugly. You can simply use
"l" for printing uintptr_t, "ll" for u64, and no modifier for u32.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Only PCI device 1 and 2 is populated on the R-Car Gen2 internal
PCIe controller. Ignore all other devices. This fix prevents a
duplication of OHCI controller response on slot 0 and 1.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
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Most FSL PCIe controllers expects 333 MHz PCI reference clock.
This clock is derived from the CCB but in many cases the ref.
clock is not 333 MHz and a divisor needs to be configured.
This adds PEX_CCB_DIV #define which can be defined for each
type of CPU/platform.
Signed-off-by: Joakim Tjernlund <joakim.tjernlund@infinera.com>
Reviewed-by: York Sun <york.sun@nxp.com>
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This introduces two new APIs dm_pci_find_capability() and
dm_pci_find_ext_capability() to get PCI capability address and
PCI express extended capability address for a given PCI device.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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We have "struct sandbox_pci_priv" in pci_sandbox driver. To avoid
confusion, rename the emul's priv to "struct sandbox_pci_emul_priv".
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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At present all emulated sandbox pci devices must be present in the
device tree in order to be used. The real world pci uclass driver
supports pci device driver matching, and we should add such support
on sandbox too.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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The correct driver data comes from the matching 'id' instead of
'find_id' in pci_find_and_bind_driver().
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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With the newly added test cases for PCI configuration access, we get:
=> ut dm pci_busdev
Test: dm_test_pci_busdev: pci.c
test/dm/pci.c:49, dm_test_pci_busdev(): SANDBOX_PCI_VENDOR_ID == vendor:
Expected 4660, got 65535
Test: dm_test_pci_busdev: pci.c (flat tree)
test/dm/pci.c:49, dm_test_pci_busdev(): SANDBOX_PCI_VENDOR_ID == vendor:
Expected 4660, got 65535
Failures: 2
The bug only shows up when bus number is not equal to zero. This is
caused by the plain find_devfn parameter is passed to function call
pci_bus_find_devfn(), inside which find_devfn is compared to devfn
in the device's pplat structure. However pplat->devfn does not carry
the bus number. Fix this by passing find_devfn with bus number masked.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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The flag to control whether to scan multi-function device during
enumeration should be cleared at the beginning of each iteration
if the device's function number equals to zero.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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Currently only devfn is extracted in child_post_bind(). Now that
we have the live-tree version API to look up PCI vendor and device
id from the compatible string, let's extract and save them too.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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If U-Boot gets used as coreboot payload all pci resources got
assigned by coreboot. If a dts without any pci ranges gets used
the dm is not able to access pci device memory. To get things
working make use of a 1:1 mapping for bus <-> phy addresses.
This change makes it possible to get the e1000 U-Boot driver
working on a sandybridge device where U-Boot is used as coreboot
payload.
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: fixed 'u-boot' in the commit message]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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If we use U-Boot as coreboot payload with a generic dts without
any ranges specified we fail in pci pre_probe and our pci bus
is not usable.
So convert decode_regions(..) into a void function and do the simple
error handling there.
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
[bmeng: fixed 'u-boot' in the commit message and checkpatch warning]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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Currently, if we happen to allocate an address requiring 64 bits to a
device only supporting 32-bit BARs, the address eventually gets silently
truncated to 32 bits. Avoid this by adding a new flag to
pciauto_region_allocate() to bail out in such situations.
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Reviewed-by: Simon Glass <sjg@chromium.org>
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All of the debug output from this file is squished to one line. Fix
it.
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Reviewed-by: Simon Glass <sjg@chromium.org>
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Currently, qemu_arm_defconfig and qemu_arm64_defconfig only work with
the 'highmem=off' parameter passed to QEMU's virt machine. The reason is
that when 'highmem' is not disabled, QEMU appends 64-bit a memory
resource to the PCI controller's regions property in DT in addition to
the 32-bit PCI memory window in low memory. And the current DT parsing
code picks the last (thus the 64-bit one) memory resource, whose address
eventually gets silently truncated to 32 bits because
CONFIG_SYS_PCI_64BIT is not set, which obviously causes PCI to break.
Avoid this problem by ignoring memory regions whose addresses are above
the 32-bit boundary when CONFIG_SYS_PCI_64BIT is not set.
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Reviewed-by: Simon Glass <sjg@chromium.org>
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Introduce a weak tegra_pcie_board_port_reset() function by default
calling the existing tegra_pcie_port_reset() function. Additionally add
a tegra_pcie_port_index_of_port() function to retrieve the specific PCIe
port index if required. This allows overriding the PCIe port reset
functionality from board specific code as e.g. required for Apalis T30
and Apalis TK1.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
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Declaration of indirect PCI bridges is not compatible with DM: Both
define PCI operations, but in different ways. Hence, don't use indirect
bridges if DM is active.
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Reviewed-by: Simon Glass <sjg@chromium.org>
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Add PCIe driver for Intel FPGA PCIe IP. This driver operates the PCIe IP in
rootport mode only, the EP mode is not supported. The driver is tested
with the Intel e1000e NIC driver.
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
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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>
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We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.
Signed-off-by: Tom Rini <trini@konsulko.com>
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If video initialization fails, the "Video:" output message will be
mixed with the next console log. Change to print out such message
only when everything is OK, which improves the boot log readability.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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This patch introduced the Aardvark PCIe driver based
driver model.
The PCIe driver is supposed to work in Root Complex
mode. It only supports X1 lane width.
Signed-off-by: Wilson Ding <dingwei@marvell.com>
Reviewed-on: http://vgitil04.il.marvell.com:8080/38725
Reviewed-by: Victor Gu <xigu@marvell.com>
Reviewed-by: Hua Jing <jinghua@marvell.com>
Tested-by: Hua Jing <jinghua@marvell.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Ken Ma <make@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>
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Currently, ATU (address translation unit) implementation doesn't
support translate addresses > 32 bits.
This patch allows to configure ATU correctly for different
memory accesses (memory, configuration and IO).
The same approach is used in Linux Kernel.
Signed-off-by: Igal Liberman <igall@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>
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It makes no sense to set a PCI region that has 0 size.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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PCI enumeration may happen very early on an x86 board. The board
information pointer should have been checked in decode_regions()
as its space may not be allocated yet.
With this commit, Intel Galileo board boots again.
Fixes: 664758c ("pci: Fix decode regions for memory banks")
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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Thomas reported U-Boot failed to build host tools if libfdt-devel
package is installed because tools include libfdt headers from
/usr/include/ instead of using internal ones.
This commit moves the header code:
include/libfdt.h -> include/linux/libfdt.h
include/libfdt_env.h -> include/linux/libfdt_env.h
and replaces include directives:
#include <libfdt.h> -> #include <linux/libfdt.h>
#include <libfdt_env.h> -> #include <linux/libfdt_env.h>
Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Since memory banks may not be located behind each other we need to add
them separately.
Signed-off-by: Bernhard Messerklinger <bernhard.messerklinger@br-automation.com>
Reviewed-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
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Add driver for the Renesas RCar PCIe controller present on Gen2 SoCs.
The PCIe on Gen2 is used both to connect external PCIe peripherals as
well as access the on-SoC USB EHCI controller.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
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By default, the subordinate is set equally to the secondary bus (1) when
the RC boots, and does not alter afterwards.
This means that theoretically, the highest bus reachable downstream is
bus 1.
Force the PCIe RC subordinate to 0xff, otherwise no downstream
devices will be detected behind bus 1 if the booting OS does not allow
enumerating a higher busnr than the subordinate value of the primary
bus.
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
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Before use GPIO, we need to request gpio first. Free gpio after use.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Stefano Babic <ssbabic@denx.de>
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Last user of this option went away in 2015 in commit:
d928664f41 ("powerpc: 74xx_7xx: remove 74xx_7xx cpu support")
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
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MIPS is no longer a part of Imagination Technologies, and as such my
@imgtec.com email address will soon cease to function. This patch
updates occurrances of it with my new @mips.com email address, and adds
an entry in .mailmap such that git (& tools such as get_maintainer.pl
when examining history) will use the new address.
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: u-boot@lists.denx.de
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This patch is to change U-Boot PCI bus assignement compliant with Linux.
It means each PCIe controller's bus number is 0, not the current maximum
PCI bus number, when start to scan this controller.
Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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Increase size PCI memory mapping from 32MiB to 128MiB.
Signed-off-by: VlaoMao <vlaomao@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
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We have at least a minor count of boards, that failed to re-initialize
PCI express in the Linux kernel. Typical failure rate is 20% on affected
boards. This is mitigated by commit 6ecbe1375671 ("drivers: pci: imx:
add imx_pcie_remove function").
However, at least on some i.MX6 custom boards, when calling
assert_core_reset() as part of the first-time PCIe init, read access
to PCIE_PL_PFLR simply hangs. Surround this readl() with
imx_pcie_fix_dabt_handler() does not help. For this reason, the forced
LTSSM detection is only used on the second assert_core_reset() that is
called shorly before starting the Linux kernel.
Signed-off-by: Sven-Ola Tuecke <sven-ola.tuecke@numberfour.eu>
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Tested-by: David Müller <d.mueller@elsoft.ch>
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QEMU emulates such a device with '-machine virt,highmem=off' on ARM.
The 'highmem=off' part is required for things to work as the PCI code
in U-Boot doesn't seem to support 64-bit BARs.
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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Use the new helpers to avoid boilerplate in the driver.
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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Use the new helper function to avoid boilerplate in the driver.
Note that this changes __raw_writel et al. to writel. AFAICT this is
no problem because:
- The Linux driver for the same hardware uses the non-__raw variants as
well (via pci_generic_config_write()).
- This driver seems to be used only on MIPS so far, where the __raw and
non-__raw accessors are the same.
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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This sort of pattern for implementing memory-mapped PCI config space
accesses appears in U-Boot twice already, and a third user is coming up.
So add helper functions to avoid code duplication, similar to how Linux
has pci_generic_config_write and pci_generic_config_read.
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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