Commit Graph

350 Commits

Author SHA1 Message Date
Sven-Ola Tuecke
b2915ba25e drivers: pci: imx: fix imx_pcie_remove function
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 6ecbe13756 ("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>
2017-10-12 17:56:28 +02:00
Tuomas Tynkkynen
3675cb044e PCI: Add driver for a 'pci-host-ecam-generic' host controller
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>
2017-10-06 11:28:12 -04:00
Tuomas Tynkkynen
e434a90ec4 pci: layerscape: Use pci_generic_mmap_{read, write}_config
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>
2017-10-06 11:27:41 -04:00
Tuomas Tynkkynen
75e3feac1b pci: xilinx: Use pci_generic_mmap_{read, write}_config()
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>
2017-10-06 11:27:41 -04:00
Tuomas Tynkkynen
badb99220a pci: Add helper for implementing memory-mapped config space accesses
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>
2017-10-06 11:27:40 -04:00
Masahiro Yamada
9b643e312d treewide: replace with error() with pr_err()
U-Boot widely uses error() as a bit noisier variant of printf().

This macro causes name conflict with the following line in
include/linux/compiler-gcc.h:

  # define __compiletime_error(message) __attribute__((error(message)))

This prevents us from using __compiletime_error(), and makes it
difficult to fully sync BUILD_BUG macros with Linux.  (Notice
Linux's BUILD_BUG_ON_MSG is implemented by using compiletime_assert().)

Let's convert error() into now treewide-available pr_err().

Done with the help of Coccinelle, excluing tools/ directory.

The semantic patch I used is as follows:

// <smpl>
@@@@
-error
+pr_err
 (...)
// </smpl>

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: Re-run Coccinelle]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-10-04 11:59:44 -04:00
Bharat Bhushan
4b97a82442 pci: layerscape: Fixup iommu-map for LS208xA
Commit 0aaa1a9 added support for LS208xA devices but fixing
iommu-map property is missing. This patch adds support for
fixing iommu-map.

Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
[YS: revised commit message]
Reviewed-by: York Sun <york.sun@nxp.com>
2017-09-22 12:42:29 -07:00
Tuomas Tynkkynen
44913a185f pci: Remove unnecessary 'default n' from Kconfig
'default n' is the default anyway so it doesn't need to be specified
explicitly, and the rest of the file doesn't specify it either anywhere.
Drop it.

Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-09-22 07:39:56 -04:00
Tuomas Tynkkynen
93b1431f1a pci: layerscape: Remove unused field 'hose' from struct ls_pcie
This field is no longer used since the DM conversion. Drop it.

Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-09-22 07:39:55 -04:00
Tuomas Tynkkynen
be0105bc1e pci: tegra: Remove unused field 'hose' from struct tegra_pcie
This field is no longer used since the DM conversion. Drop it.

Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-09-22 07:39:55 -04:00
Tuomas Tynkkynen
bee278de81 pci: xilinx: Remove unused field 'hose' from struct xilinx_pcie
This field has never been used as the driver has been DM-based since the
beginning. Drop it.

Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-09-22 07:39:55 -04:00
Tuomas Tynkkynen
adfc3e4804 pci: xilinx: Fix doc comments on config space accessors
These take the 'struct udevice *' as an argument, not the
'struct xilinx_pcie *` which is a local variable. Fix the comments to
match the code.

Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-09-22 07:39:54 -04:00
Bin Meng
76e726502e vbe: Drop vbe_get_video_info()
With DM video, this is not used any more. Drop it.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
2017-08-24 11:00:47 +08:00
Simon Glass
00caae6d47 env: Rename getenv/_f() to env_get()
We are now using an env_ prefix for environment functions. Rename these
two functions for consistency. Also add function comments in common.h.

Quite a few places use getenv() in a condition context, provoking a
warning from checkpatch. These are fixed up in this patch also.

Suggested-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Simon Glass <sjg@chromium.org>
2017-08-16 08:30:24 -04:00
Hou Zhiqiang
89d8e1313f PCI: layerscape: Fix assigning wrong address to LS2088A pcie cfg1 space
This bug is brought by the commit 3d8553f0a3 (pci: layerscape: add
LS2088A series SoC pcie support), which only updated cfg_res.start
and did not update the .end field. This causes fdt_resource_size()
getting wrong value when calculate the cfg1 space address.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
[YS: Revise subject and commit message]
Reviewed-by: York Sun <york.sun@nxp.com>
2017-08-09 09:57:32 -07:00
Tom Rini
ec7483e34e Merge git://git.denx.de/u-boot-fsl-qoriq
Signed-off-by: Tom Rini <trini@konsulko.com>

Conflicts:
	include/configs/ls1046aqds.h
	include/configs/ls1046ardb.h
2017-08-02 10:52:26 -04:00
Santan Kumar
ec8a7d7743 soc/fsl-layerscape: Update SVR number for LS2081A and LS2041A
Update SVR as per the SOC document.
 -LS2081A: 0x870919 -> 0x870918
 -LS2041A: 0x870915 -> 0x870914

Signed-off-by: Santan Kumar <santan.kumar@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-08-01 08:28:56 -07:00
Bin Meng
6bf89de7e1 x86: kconfig: Select PCI and DM_PCI
PCI is the de facto interconnect bus in an x86 system.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-08-01 20:17:02 +08:00
Simon Glass
68f0081139 dm: tegra: pci: Convert to livetree
Update the tegra pci driver to support a live device tree. Fix the check
for nvidia,num-lanes so that an error will actually be detected.

Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-on: Beaver, Jetson-TK1
Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
2017-07-28 12:02:47 -06:00
Masahiro Yamada
61e51babdb dm: ofnode: rename ofnode_read_prop() to ofnode_get_property()
This function returns the pointer to the value of a node property.
The current name ofnode_read_prop() is confusing.  Follow the naming
of_get_property() from Linux.

The return type (const u32 *) is wrong.  DT property values can be
strings as well as integers.  This is why of_get_property/fdt_getprop
returns an opaque pointer.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Simon Glass <sjg@chromium.org>
2017-07-11 10:08:20 -06:00
Simon Glass
878d68c0c3 dm: core: Add functions to obtain node's address/size cells
The of_n_addr_cells() and of_n_size_cells() functions are useful for
getting the size of addresses in a node, but in a few places U-Boot needs
to obtain the actual property value for a node without walking up the
stack. Add functions for this and just the existing code to use it.

Add a comment to the existing ofnode functions which do not do the right
thing with a flat tree.

This fixes a problem reading PCI addresses.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Tested-on: Beaver, Jetson-TK1
2017-07-11 10:08:20 -06:00
Heiko Schocher
98f705c9ce powerpc: remove 4xx support
There was for long time no activity in the 4xx area.
We need to go further and convert to Kconfig, but it
turned out, nobody is interested anymore in 4xx,
so remove it.

Signed-off-by: Heiko Schocher <hs@denx.de>
2017-07-03 17:35:28 -04:00
Tom Rini
821560fd8e Merge git://www.denx.de/git/u-boot-imx
Signed-off-by: Tom Rini <trini@konsulko.com>

Conflicts:
	include/configs/imx6qdl_icore_rqs.h
	include/configs/imx6ul_geam.h
	include/configs/imx6ul_isiot.h
2017-06-27 09:32:37 -04:00
Heiko Schocher
2eb48ff7a2 powerpc, 8260: remove support for mpc8260
There was for long time no activity in the 8260 area.
We need to go further and convert to Kconfig, but it
turned out, nobody is interested anymore in 8260,
so remove it.

Signed-off-by: Heiko Schocher <hs@denx.de>
2017-06-12 08:38:02 -04:00
Simon Glass
6e2941d787 common: freescale: Move arch-specific declarations
The declarations should not be in common.h. Move them to the arch-specific
headers.

Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Fixup thinko defined(FSL_LSCH3) -> defined(CONFIG_FSL_LSCH3)]
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-06-05 12:30:55 -04:00
Simon Glass
bf501595cd dm: pci: Update uclass to support livetree
Update the PCI uclass to support livetree. This mostly involves fixing
the address decoding from the device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 07:03:15 -06:00
Simon Glass
a821c4af79 dm: Rename dev_addr..() functions
These support the flat device tree. We want to use the dev_read_..()
prefix for functions that support both flat tree and live tree. So rename
the existing functions to avoid confusion.

In the end we will have:

   1. dev_read_addr...()    - works on devices, supports flat/live tree
   2. devfdt_get_addr...()  - current functions, flat tree only
   3. of_get_address() etc. - new functions, live tree only

All drivers will be written to use 1. That function will in turn call
either 2 or 3 depending on whether the flat or live tree is in use.

Note this involves changing some dead code - the imx_lpi2c.c file.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-06-01 07:03:01 -06:00
Tim Harvey
6ecbe13756 drivers: pci: imx: add imx_pcie_remove function
There is no dedicated reset signal wired up for the MX6QDL thus if the
bootloader enables the link we need some special handling to get the core
back into a state where it is safe to touch it for configuration.

While there has been some special handling in the Linux kernel to do this,
it was removed in 4.11 thus we need to do it properly in the bootloader
and therefore without this if you enable PCI in the bootloader you will hang
while booting the 4.11 kernel.

This puts the PCIe controller back into a safe state for the kernel driver
before launching the kernel.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Tested-by: Peter Senna Tschudin <peter.senna@collabora.com>
2017-05-31 10:09:03 +02:00
Tom Rini
380e86f361 Merge git://git.denx.de/u-boot-fsl-qoriq 2017-05-26 11:19:27 -04:00
Priyanka Jain
e809e74799 armv8: fsl-layerscape: Add NXP LS2081A, LS2041A SoC support
The QorIQ LS2081A SoC has eight 64-bit ARM v8 Cortex A72 cores and
is built on layerscape architecture. It is 40-pin derivative of
LS2084A (non-AIOP personality of LS2088A). So feature-wise it is
same as LS2084A. LS2041A is a 4-core personality of LS2081A.

Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
Signed-off-by: Santan Kumar <santan.kumar@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-05-23 09:40:23 -07:00
Bin Meng
68769ebcbc x86: pci: Allow conditionally run VGA rom in S3
Introduce a new CONFIG_S3_VGA_ROM_RUN option so that U-Boot can
bypass executing VGA roms in S3.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Tested-by: Stefan Roese <sr@denx.de>
2017-05-17 17:11:46 +08:00
xypron.glpk@gmx.de
c42640c748 pci: avoid memory leak
strdup uses malloc to allocate memory for str.
If we cannot bind to the generic driver we should release
the memory.

The problem was indicated by clang scan-build.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-05-12 08:37:18 -04:00
Konstantin Porotchkin
3f75e0ce7b fix: mvebu: pcie_dw: Allow probing empty PCIe slots
This patch allows probing all PCIe nodes defined in DTS
even if there no device connected to such node (no link).
Without this fix the driver returns -ENODEV when the PCIe
link is down. As result the pci_init function stops
scanning bus on first empty PCIe slot and all devices
located in higher numbered buses are not discovered.

Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Igal Liberman <igall@marvell.com>
Cc: Nadav Haklai <nadavh@marvell.com>
Reviewed-by: Stefan Roese <sr@denx.de>
2017-05-09 13:38:17 +02:00
Tom Rini
7d67bb1daf Merge git://git.denx.de/u-boot-dm 2017-04-04 09:18:57 -04:00
Bharat Bhushan
78be6222b0 pcie-layerscape: Fixup iommu-map property of pci node
This patch fixup iommu-map property on pci node to have a valid
mapping of requester-id to stream-id. The requester-id to stream-id
mapping is based on PCI-LUT table initialization.

Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-03-28 10:54:09 -07:00
Bharat Bhushan
47d1736231 pcie-layerscape: Initialize pci-lut for NXP chasis-2 socs
Layerscape Chasis-2 also uses same PCIe controller as Chasis-3
and have similar PCI-Lut.

Signed-off-by: Bharat Bhushan <bharat.bhushan@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-03-28 10:52:41 -07:00
Hou Zhiqiang
0aaa1a90b3 pci: layerscape: Fixup device tree node for ls2088a
LS2088A and its variants have different PCIe node than LS2080A.
The compatible string is updated accordingly.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-03-28 09:22:18 -07:00
Hou Zhiqiang
3d8553f0a3 pci: layerscape: add LS2088A series SoC pcie support
The LS2088A series SoCs has different physical memory map address and
CCSR registers address against LS2080A series SoCs.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-03-28 09:21:13 -07:00
Hou Zhiqiang
d170aca1a0 pci: layerscape: enable PCIe config ready
In EP mode, to enable accesses from the Root Complex, the
CONFIG_READY bit must be set, otherwise any config attempts
from the Root Complex will be returned with config retry
status (CRS).

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-03-28 09:06:11 -07:00
Hou Zhiqiang
0367bd4d60 pci: correct a function description
In the description of function pci_match_one_id(), there are some
problems on arguments list and return value description, so correct
them.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-03-26 13:22:58 -06:00
Konstantin Porotchkin
130b53ec79 mvebu: pcie: Add support for GPIO reset for PCIe device
Add support for "marvell,reset-gpio" property to mvebu DW PCIe
driver.
This option is valid when CONFIG_DM_GPIO=y

Change-Id: Ic17c500449050c2fbb700731f1a9ca8b83298986
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Signed-off-by: Rabeeh Khoury <rabeeh@solid-run.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Nadav Haklai <nadavh@marvell.com>
Cc: Neta Zur Hershkovits <neta@marvell.com>
Cc: Igal Liberman <igall@marvell.com>
Cc: Haim Boot <hayim@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>
2017-03-23 08:45:25 +01:00
Simon Glass
e160f7d430 dm: core: Replace of_offset with accessor
At present devices use a simple integer offset to record the device tree
node associated with the device. In preparation for supporting a live
device tree, which uses a node pointer instead, refactor existing code to
access this field through an inline function.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-02-08 06:12:14 -07:00
Simon Glass
05cbd985c0 x86: Don't try to run the VGA BIOS in 64-bit mode
This is not supported, so disable it for now.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2017-02-06 11:38:46 +08:00
Dirk Eibach
882d3fa6dd pci: mvebu: Fix Armada 38x support
Armada 38x has four PCI ports, not three.

The optimization in pci_init_board() seems to assume that every port has
three lanes. This is obviously wrong, and breaks support for Armada 38x.

Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc>
Signed-off-by: Mario Six <mario.six@gdsys.cc>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
2017-02-01 09:01:19 +01:00
Tom Rini
79a34b71c9 Merge git://git.denx.de/u-boot-mpc85xx 2017-01-25 17:38:45 -05:00
Simon Glass
37b499c43f Drop CONFIG_WINBOND_83C553
This is not used in U-Boot. Drop this option and associated dead code.

Signed-off-by: Simon Glass <sjg@chromium.org>
2017-01-25 17:38:43 -05:00
Tony O'Brien
09bfd962bd mpc85xx: pcie: Implement workaround for Erratum A007815
The read-only-write-enable bit is set by default and must be cleared
to prevent overwriting read-only registers.  This should be done
immediately after resetting the PCI Express controller.

Reviewed-by: Hamish Martin <hamish.martin@alliedtelesis.co.nz>
Signed-off-by: Tony O'Brien <tony.obrien@alliedtelesis.co.nz>
[York S: Move SYS_FSL_ERRATUM_A007815 to Kconfig]
Reviewed-by: York Sun <york.sun@nxp.com>
2017-01-24 13:28:31 -08:00
Hou Zhiqiang
19538f306b kconfig: move FSL_PCIE_COMPAT to platform Kconfig
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-01-18 09:27:18 -08:00
Minghuan Lian
9fa2a4fc8b pci: layerscape: remove unnecessary legacy code
All Layerscape SoCs have supported new PCIe driver based on DM.
The lagecy PCIe driver code is unused and can be removed.

Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-01-18 09:27:11 -08:00
Minghuan Lian
80afc63fc3 pci: layerscape: add pci driver based on DM
There are more than five kinds of Layerscape SoCs. unfortunately,
PCIe controller of each SoC is a little bit different. In order
to avoid too many macro definitions, the patch addes a new
implementation of PCIe driver based on DM. PCIe dts node is
used to describe the difference.

Signed-off-by: Minghuan Lian <Minghuan.Lian@nxp.com>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-01-18 09:26:37 -08:00