Commit graph

47774 commits

Author SHA1 Message Date
Felix Brack
46caea7f96 power: tps65910: replace error() by pr_err()
The patch replaces the former error() by the new pr_err().
This makes the TPS65910 driver conform to Masahiro's patch
'treewide:replace with error() with pr_err()' introduced
October 2017.

Signed-off-by: Felix Brack <fb@ltec.ch>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-01 09:04:19 -05:00
Sam Protsenko
48fa31206d configs: am335x_boneblack: Bring back missed bootcmd
Commit b6251db8c3 ("Kconfig: Introduce USE_BOOTCOMMAND and migrate
BOOTCOMMAND") removed CONFIG_BOOTCOMMAND option from
include/configs/am335x_evm.h file. But that option wasn't added to
defconfig files for BeagleBone Black board.

Because of this we can't boot Linux from SD card using just
"run bootcmd", getting next error:

    ** File not found /boot/undefined **

That's because "fdtfile" variable has "undefined" value by default, and
"bootcmd" doesn't call "run findfdt" command, which assigns "fdtfile" to
correct device tree file for current board name (obtained from EEPROM).

So we are forced to either call "run findfdt" command manually, or
assign manually "fdtfile=am335x-boneblack.dtb" (e.g. in uEnv.txt file).

Bring back CONFIG_BOOTCOMMAND to BBB defconfigs so that we can boot
Linux rootfs from SD card automatically without any addition actions.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
2018-01-01 09:04:19 -05:00
Heinrich Schuchardt
5da3b3d104 dm: core: remove orphaned parameter description in platdata.h
struct driver_info has no field 'flags'.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-01 09:04:19 -05:00
Derald D. Woods
836e67ee66 ARM: omap3: evm: Refactor 'board_eth_init'
This commit clears 'ethaddr' before calling 'smc911x_initialize' to
allow the SROM MAC address to be assigned properly.

Signed-off-by: Derald D. Woods <woods.technical@gmail.com>
2018-01-01 09:04:19 -05:00
Derald D. Woods
c2900f595e ARM: dts: omap3-evm: Enable DM and devicetree for TMDSEVM{3530, 3730}
This commit updates the configuration files needed to support OF_CONTROL
on the OMAP3 EVM baseboard.

Additionally:
- CONFIG_SYS_THUMB_BUILD is enabled
- CONFIG_SPL_ENV_SUPPORT is enabled

Tested using GCC 7.2.0 [--with-float=hard --with-mode=thumb].

Signed-off-by: Derald D. Woods <woods.technical@gmail.com>
2018-01-01 09:04:19 -05:00
Derald D. Woods
d9be183b4c ARM: dts: omap3-evm: Add support for TMDSEVM{3530, 3730}
This commit adds OMAP3 EVM devicetree files from Linux v4.15-rc3. Note
that this is the first addition of OMAP34XX devicetree files.

Signed-off-by: Derald D. Woods <woods.technical@gmail.com>
2018-01-01 09:04:19 -05:00
Derald D. Woods
2d28ba18b5 ARM: omap3: evm: Do not relocate FDT address
This commit keeps the 'fdtaddr' as provided by DEFAULT_LINUX_BOOT_ENV.

Signed-off-by: Derald D. Woods <woods.technical@gmail.com>
2018-01-01 09:04:19 -05:00
Kever Yang
f777df3628 rockchip: dts: rk3399-evb: support boot from sd-card
Enable sdmmc node in SPL and add it to boot order.

Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
[Fixed commit tags:]
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-01-01 14:45:37 +01:00
Jakob Unterwurzacher
fe529e6597 rockchip: rk3399-puma: reduce env size to 8kiB
This commit changes the size of the enviroment (for the RK3399-Q7) to
8kiB for all possible locations of the environment (i.e. even when the
environment is saved to SD card).

With the default of 32kiB, the environment overwrites the SPL
stage which lives at 16kiB.

Signed-off-by: Jakob Unterwurzacher <jakob.unterwurzacher@theobroma-systems.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Tested-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
[Reworked commit-message:]
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2018-01-01 14:45:37 +01:00
Tom Rini
3bb6dc04a9 Merge git://git.denx.de/u-boot-imx 2017-12-29 09:27:04 -05:00
Patrick Bruenn
d6abd1d539 arm: imx: add tzic interrupt controller for imx53
Since commit 999a78d5cf ("scripts/dtc: Update to upstream version v1.4.5-3-gb1a60033c110")
dtc warns about:
arch/arm/dts/imx53-cx9020.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/aips@50000000/serial@53fc0000
arch/arm/dts/imx53-cx9020.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/aips@50000000/ccm@53fd4000
arch/arm/dts/imx53-cx9020.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/aips@50000000/gpio@53fe4000
arch/arm/dts/imx53-cx9020.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/aips@60000000/sdma@63fb0000
arch/arm/dts/imx53-cx9020.dtb: Warning (interrupts_property): Missing interrupt-parent for /soc/aips@60000000/ethernet@63fec000

Fix this by adding a node for the tzic interrupt controller.
Copied from "<Linux>/arch/arm/boot/dts/imx53.dts"

Signed-off-by: Patrick Bruenn <p.bruenn@beckhoff.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-12-29 11:18:59 +01:00
Marek Vasut
a637fe6f27 ARM: imx6: Disable DDR DRAM calibration DHCOM i.MX6 PDK
The DDR DRAM calibration doesn't work on T-topology sometimes, so disable it.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
2017-12-29 11:18:59 +01:00
Vagrant Cascadian
b6d86ce89f imx: Fix missing spl_sd configuration for wandboard.
In commit 6e6cf015e7 ("Merge
git://www.denx.de/git/u-boot-imx") the line defining spl_sd
configuration for wandboard was removed, which resulted in no SPL
target being built.

Add it back.

Signed-off-by: Vagrant Cascadian <vagrant@debian.org>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-12-29 11:18:59 +01:00
Breno Lima
52384b7e5c imx: Kconfig: Add HAS_CAAM option
Currently CONFIG_SECURE_BOOT is selecting FSL_CAAM for all i.MX devices,
this causes the following error when building mx6sl boards since
this SoC doesn't have the CAAM block:

In file included from drivers/crypto/fsl/jobdesc.c:12:0:
drivers/crypto/fsl/jobdesc.c: In function 'inline_cnstr_jobdesc_blob_dek':
include/fsl_sec.h:268:25: error: 'CAAM_ARB_BASE_ADDR' undeclared (first use
in this function)
 #define SEC_MEM_PAGE1  (CAAM_ARB_BASE_ADDR + 0x1000)
                         ^
drivers/crypto/fsl/jobdesc.c:140:21: note: in expansion of macro 'SEC_MEM_PAGE1'
  memcpy((uint32_t *)SEC_MEM_PAGE1, (uint32_t *)plain_txt, in_sz);
                     ^
include/fsl_sec.h:268:25: note: each undeclared identifier is reported only
once for each function it appears in
 #define SEC_MEM_PAGE1  (CAAM_ARB_BASE_ADDR + 0x1000)
                         ^
drivers/crypto/fsl/jobdesc.c:140:21: note: in expansion of macro 'SEC_MEM_PAGE1'
  memcpy((uint32_t *)SEC_MEM_PAGE1, (uint32_t *)plain_txt, in_sz);
                     ^
scripts/Makefile.build:280: recipe for target 'drivers/crypto/fsl/jobdesc.o'
failed
make[3]: *** [drivers/crypto/fsl/jobdesc.o] Error 1
scripts/Makefile.build:425: recipe for target 'drivers/crypto/fsl' failed
make[2]: *** [drivers/crypto/fsl] Error 2
scripts/Makefile.build:425: recipe for target 'drivers/crypto' failed
make[1]: *** [drivers/crypto] Error 2

Add HAS_CAAM configuration to avoid this error.

Signed-off-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-12-29 11:18:59 +01:00
Breno Lima
051ba9e082 Kconfig: mx6ull: Deselect MX6UL from CONFIG_MX6ULL
MX6UL contains features that MX6ULL doesn't support.
Deselect CONFIG_MX6UL and select SYS_L2CACHE_OFF and ROM_UNIFIED_SECTIONS.

The motivation for doing this change is that MX6UL supports CAAM and
MX6ULL does not.

Signed-off-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-12-29 11:18:59 +01:00
Breno Lima
a4e6b0013f mx6sl: Select MX6SL option via Kconfig
Currently the MX6SL option is selected via CONFIG_SYS_EXTRA_OPTIONS,
but it is better to select it directly via Kconfig.

Signed-off-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
2017-12-29 11:18:59 +01:00
Breno Lima
55c808e340 warp: imximage.cfg: Handle the CONFIG_SECURE_BOOT case
Secure boot is not enabled in warp imximage.cfg, add support for it.

Signed-off-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-12-29 11:18:59 +01:00
Breno Lima
4e14865537 mx6slevk: imximage.cfg: Handle the CONFIG_SECURE_BOOT case
Secure boot is not enabled in mx6slevk imximage.cfg, add support for it.

Signed-off-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
2017-12-29 11:18:59 +01:00
Fabio Estevam
6ca03f0dfb mx6sxsabresd: Load the correct dtb for revA board
Currently only imx6sx-sdb.dtb is loaded, but if revA board is used the
correct dtb is imx6sx-sdb-reva.dtb, so make this possible.

While at it, remove an extra 'mmc dev'.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-12-29 11:18:59 +01:00
Fabio Estevam
4555c26142 imx: Add a common way for detecting NXP boards revision
NXP development boards based on i.MX6/i.MX7 contain the board
revision information stored in the fuses.

Introduce a common function that can be shared by different boards and
convert mx6sabreauto to use this new mechanism.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-12-29 11:18:59 +01:00
Lukasz Majewski
9a7295831e ARM: imx: display5: config: Update display5_factory_defconfig to use USE_BOOTCOMMAND
This commit switch display5_factory_defconfig to use new, generic
USE_BOOTCOMMAND Kconfig option.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
2017-12-29 11:18:59 +01:00
Peng Fan
d56f6ca288 power: pmic.h: include dm/ofnode.h
Include dm/ofnode.h.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Stefano Babic <sbabic@denx.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-12-29 11:18:59 +01:00
Christopher Spinrath
e743f1e598 ARM: imx: cm_fx6: remove esdhc init code from board file
Commit 5248930ebf ("dm: imx: cm_fx6: Enable more driver model support")
enabled driver model support for MMC. Remove the old mmc init code, which
is no longer used, from the board file.

Signed-off-by: Christopher Spinrath <christopher.spinrath@rwth-aachen.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-12-29 11:18:59 +01:00
Christopher Spinrath
56b801c5d3 ARM: imx: cm_fx6: remove sata init code from board file
Commit 5248930ebf ("dm: imx: cm_fx6: Enable more driver model support")
enabled driver model support for AHCI. Remove the old, now unused, sata
init code from the board file.

Signed-off-by: Christopher Spinrath <christopher.spinrath@rwth-aachen.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-12-29 11:18:59 +01:00
Christopher Spinrath
d54f1fc5de ARM: imx: cm_fx6: defconfig: enable CONFIG_DM_KEYBOARD
Commit 5248930ebf ("dm: imx: cm_fx6: Enable more driver model support")
enabled driver model support for USB. But it missed to enable driver
model support for keyboards. As a result, USB keyboards do no longer
work.

Fix this by enabling driver model support for keyboards.

Fixes: 5248930ebf ("dm: imx: cm_fx6: Enable more driver model support")
Signed-off-by: Christopher Spinrath <christopher.spinrath@rwth-aachen.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-12-29 11:18:59 +01:00
Christopher Spinrath
c10809dd0f ARM: imx: cm-fx6: reinstate USB support by syncing the devicetree with Linux
Commit 5248930ebf ("dm: imx: cm_fx6: Enable more driver model support")
enabled driver model support for USB, thereby effectively removing USB
support because the cm_fx6 devicetree in the U-Boot does *not* enable the
USB nodes.

Reinstate the USB support by syncing the devicetree with Linux whose
devicetree enables the USB nodes properly.

More precisely, use the devicetree found in Linux v4.15-rc1 with the
following two changes:
  1) Remove the audio mux; the required dt-bindings header is not
     present in the U-Boot.
  2) Keep the usdhc3 MMC controller node currently present in the
     U-Boot's devicetree to retain the ability to boot from MMC.

Fixes: 5248930ebf ("dm: imx: cm_fx6: Enable more driver model support")
Signed-off-by: Christopher Spinrath <christopher.spinrath@rwth-aachen.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-12-29 11:17:22 +01:00
Martyn Welch
647155bcd5 board: ge: mx53ppd: Move check_time() to common location
We are going to be using check_time() on more than the mx53ppd, move this
function to a common location.

Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk>
2017-12-29 11:17:22 +01:00
Adam Ford
1b25f2d9d7 mx6_common: remove dead code
There is an #ifdef and #endif with nothing in between.  This patch simply
removes this dead/useless code.

Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2017-12-29 11:17:22 +01:00
Fabio Estevam
b47b705310 imx: Unify CONFIG_BOOTDELAY
In order to provide a consistent user experience for imx board users,
remove the custom CONFIG_BOOTDELAY values from defconfig files, so that
all boards can use the default two second delay.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
2017-12-29 11:17:22 +01:00
Tom Rini
8e5f0497c8 Merge git://git.denx.de/u-boot-dm 2017-12-27 08:17:05 -05:00
Masahiro Yamada
7e3caa81e0 Move CONFIG_PANIC_HANG to Kconfig
Freescale (NXP) boards have lots of defconfig files per board.
I used "imply PANIC_HANG" for them.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-12-26 13:10:24 -05:00
Prabhakar Kushwaha
4ace304062 boards: ls1046ardb: disable unavailable "ethernet" node in dts
Linux device tree contains "ethernet" node for all possible
interface supported by SoC i.e. LS1046A.

It is not necessary for a SerDes protocol to support all possible
interface. So disable unavailable "ethernet" node in device tree.

Also, enable FDT_SEQ_MACADDR_FROM_ENV to fetch MAC address
sequentially from environment variables

Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-12-24 12:42:50 -07:00
Prabhakar Kushwaha
6bedf44714 arm: Add support of updating dts before fix-up
"ethernet" node fix-up for device tree happens before Linux boot.

There can be requirement of updating "ethernet" node even before
fix-up. So, add support of updating "ethernet" node.

Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-12-24 12:42:50 -07:00
Prabhakar Kushwaha
24acb83d8f common: Fix-up MAC addr in dts by fetching env variable serially
The MAC addresses get fixed in the device tree for "ethernet" nodes
is by using trailing number behind "ethernet" found in "/aliases".
It may not be necessary for the "ethernet" nodes to be sequential.
There can be gaps in between or any node disabled

So provide a support to fetch MAC addr sequentially from env
and apply them to "ethernet" nodes in the order they appear in
device tree only if "ethernet" is not "disabled"

Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
2017-12-24 12:42:50 -07:00
Tom Rini
48a346061d Merge git://git.denx.de/u-boot-x86 2017-12-21 09:54:10 -05:00
Andy Shevchenko
1602d215b5 x86: tangier: Use official ACPI HID for FLIS IP
FLIS IP since now gets its own ACPI ID.
Drop PRP0001 workaround in favour of official ACPI HID.

Corresponding kernel commit dabd4bc6de2b

	pinctrl: intel: merrifield: Introduce ACPI device table

in the pin control subsystem tree [1] targeting v4.16.

[1]: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl.git/commit/?h=for-next&id=dabd4bc6de2b

Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2017-12-21 09:18:05 +08:00
Tom Rini
b55c89ce02 Merge git://git.denx.de/u-boot-spi 2017-12-19 07:57:40 -05:00
Tom Rini
76cc372879 Merge git://git.denx.de/u-boot-sunxi 2017-12-19 07:57:33 -05:00
Emmanuel Vadot
5f77083628 efi_loader: Setup logical_partition media information
When adding a partition, set the logical_partition member in the media
structure as mandated by the UEFI spec.

Signed-off-by: Emmanuel Vadot <manu@freebsd.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
2017-12-19 07:57:02 -05:00
Sean Nyekjaer
065592b40b mtd/spi: fix block count for is25lq040b
This spi-nor is 4Mbit/512KB

Fixes: b4fbcbc5a5 ("mtd/spi: add support for is25lq040b")
Signed-off-by: Sean Nyekjaer <sean.nyekjaer@prevas.dk>
Reviewed-by: Jagan Teki <jagan@openedev.com>
2017-12-19 17:33:48 +05:30
Jagan Teki
23cd00ab2d arm64: dts: sun50i: h5: Order nodes in alphabetic for orangepi-prime
Order sun50i-h5-orangepi-prime.dts nodes in alphabetic

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-12-19 16:26:21 +05:30
Jagan Teki
207f48345f configs: sunxi: Drop FASTBOOT_FLASH
Now FASTBOOT_FLASH is auto select for sunxi platform,
so drop explicit addition.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-12-19 16:26:21 +05:30
Jagan Teki
e628f00828 sunxi: arm64: Increase CONFIG_SYS_BOOTM_LEN to 32MB
The default value of CONFIG_SYS_BOOTM_LEN, 0x800000, causes error
when uncompressing Image.gz out of FIT image.

  Uncompressing Kernel Image ... Error: inflate() returned -5
Image too large: increase CONFIG_SYS_BOOTM_LEN

and loading Image out of FIT image.
   Loading Kernel Image ... Image too large: increase CONFIG_SYS_BOOTM_LEN
Must RESET board to recover

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
2017-12-19 16:26:20 +05:30
Tom Rini
9da71fc83a Prepare v2018.01-rc2
Signed-off-by: Tom Rini <trini@konsulko.com>
2017-12-18 20:55:17 -05:00
Tom Rini
7af2e3648f configs: Resync with savedefconfig
Rsync all defconfig files using moveconfig.py

Signed-off-by: Tom Rini <trini@konsulko.com>
2017-12-18 20:19:09 -05:00
Tom Rini
eeab579aa8 Merge git://git.denx.de/u-boot-rockchip 2017-12-18 18:39:18 -05:00
Tom Rini
1a3fc354b5 Merge git://git.denx.de/u-boot-fsl-qoriq 2017-12-18 18:39:00 -05:00
Heiko Schocher
1a1e7072e3 common: image.c: Fix CACHE: Misaligned operation output
When booting a itb file with a Ramdisk on a imx6 based
board, U-Boot drops the warning:

Loading Kernel Image ... OK
Loading Ramdisk to 4ecf1000, end 4ef8b11f ... \
CACHE: Misaligned operation at range [4ecf1000,  4ef8b11f]

Fix it!

Signed-off-by: Heiko Schocher <hs@denx.de>
Tested-by: Ayoub Zaki <hs@denx.de>
2017-12-18 13:06:30 -05:00
Sam Protsenko
dd0829f6c3 am335x_evm: Fix DFU for eMMC
Use dfu_alt_info_emmc variable from include/environment/ti/dfu.h file.
It was probably overlooked when extracting DFU variables to mentioned
file.

This patch fixes DFU on BeagleBone Black, so that we can use commands
like ones below to upgrade various images on eMMC:

    => setenv dfu_alt_info $dfu_alt_info_emmc
    => dfu 0 mmc 1

    $ dfu-util -D MLO -a MLO.raw
    $ dfu-util -D u-boot.img -a u-boot.img.raw

Without this patch, the  user is forced to assign the value to
dfu_alt_info_emmc manually, which contradicts with instructions [1].

[1] http://processors.wiki.ti.com/index.php/Linux_Core_U-Boot_User%27s_Guide

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Lukasz Majewski <lukma@denx.de>
2017-12-18 13:06:30 -05:00
Jerome Brunet
30cbb524bc net: phy: meson-gxl: detect LPA corruption
This patch is ported from the Linux patch posted at [1] and applied to
net tree as commit f1e2400a80ff.

The purpose of this change is to fix the incorrect detection of the link
partner (LP) advertised capabilities which sometimes happens with this PHY
(roughly 1 time in a dozen)

This issue may cause the link to be negotiated at 10Mbps/Full or
10Mbps/Half when 100MBps/Full is actually possible. In some case, the link
is even completely broken and no communication is possible.

To detect the corruption, we must look for a magic undocumented bit in the
WOL bank (hint given by the SoC vendor kernel) but this is not enough to
cover all cases. We also have to look at the LPA ack. If the LP supports
Aneg but did not ack our base code when aneg is completed, we assume
something went wrong.

The detection of a corrupted LPA triggers a restart of the aneg process.
This solves the problem but may take up to 6 retries to complete.

[1] https://lkml.kernel.org/r/20171208110811.30789-1-jbrunet@baylibre.com

Fixes: 8995a96d1d ("net: phy: Add Amlogic Meson GXL Internal PHY support")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
2017-12-18 13:06:30 -05:00