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TJA1102 is a dual PHY package with PHY0 having proper PHYID and PHY1
having no ID. On one hand it is possible to for PHY detection by
compatible, on other hand we should be able to reset complete chip
before PHY1 configured it, and we need to define dependencies for proper
power management.
We can solve it by defining PHY1 as child of PHY0:
tja1102_phy0: ethernet-phy@4 {
reg = <0x4>;
interrupts-extended = <&gpio5 8 IRQ_TYPE_LEVEL_LOW>;
reset-gpios = <&gpio5 9 GPIO_ACTIVE_LOW>;
reset-assert-us = <20>;
reset-deassert-us = <2000>;
tja1102_phy1: ethernet-phy@5 {
reg = <0x5>;
interrupts-extended = <&gpio5 8 IRQ_TYPE_LEVEL_LOW>;
};
};
The PHY1 should be a subnode of PHY0 and registered only after PHY0 was
completely reset and initialized.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.