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Cristian Ciocaltea says: ==================== Add support for Actions Semi Owl Ethernet MAC This patch series adds support for the Ethernet MAC found on the Actions Semi Owl family of SoCs. For the moment I have only tested the driver on RoseapplePi SBC, which is based on the S500 SoC variant. It might work on S900 as well, but I cannot tell for sure since the S900 datasheet I currently have doesn't provide any information regarding the MAC registers - so I couldn't check the compatibility with S500. Similar story for S700: the datasheet I own is incomplete, but it seems the MAC is advertised with Gigabit capabilities. For that reason most probably we need to extend the current implementation in order to support this SoC variant as well. Please note that for testing the driver it is also necessary to update the S500 clock subsystem: https://lore.kernel.org/lkml/cover.1615221459.git.cristian.ciocaltea@gmail.com/ The DTS changes for the S500 SBCs will be provided separately. Thanks, Cristi Changes in v3: - Dropped the 'debug' module parameter and passed the default NETIF_MSG flags to netif_msg_init(), according to David's review - Removed the owl_emac_generate_mac_addr() function and the related OWL_EMAC_GEN_ADDR_SYS_SN config option until a portable solution to get the system serial number is found - when building on arm64 the following error is thrown (as reported by Rob's kernel bot): '[...]/owl-emac.c:9:10: fatal error: asm/system_info.h: No such file or directory' - Rebased patchset on v5.12-rc4 Changes in v2: * According to Philipp's review - Requested exclusive control over serial line via devm_reset_control_get_exclusive() - Optimized error handling by using dev_err_probe() * According to Andrew's review - Dropped the inline keywords - Applied Reverse Christmas Tree format to local variable declarations - Renamed owl_emac_phy_config() to owl_emac_update_link_state() - Documented the purpose of the special descriptor used in the context of owl_emac_setup_frame_xmit() - Updated comment inside owl_emac_mdio_clock_enable() regarding the MDC clock divider setup - Indicated MAC support for symmetric pause via phy_set_sym_pause() in owl_emac_phy_init() - Changed the MAC addr generation algorithm in owl_emac_generate_mac_addr() by setting the locally administered bit in byte 0 and replacing bytes 1 & 2 with additional entries from enc_sn - Moved devm_add_action_or_reset() before clk_set_rate() in owl_emac_probe() * Other - Added SMII interface support: updated owl_emac_core_sw_reset(), added owl_emac_clk_set_rate(), updated description in the YAML binding - Changed OWL_EMAC_TX_TIMEOUT from 0.05*HZ to 2*HZ ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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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.