The Qualcomm QCA7000 HomePlug GreenPHY supports two interfaces:
UART and SPI. This patch series adds the missing support for UART.
This driver based on the Qualcomm code [1], but contains some changes:
* use random MAC address per default
* use net_device_stats from device
* share frame decoding between SPI and UART driver
* improve error handling
* reimplement tty_wakeup with work queue (based on slcan)
* use new serial device bus instead of ldisc
The patches 1 - 3 are just for clean up and are not related to
the UART support. Patch 4 adds SET_NETDEV_DEV() to qca_spi.
Patches 5 - 16 prepare the existing QCA7000 code for UART support.
The last patch contains the new driver.
The code itself has been tested on a Freescale i.MX28 board and
a Raspberry Pi Zero.
Changes in v8:
* add necessary header includes to qca_7k.c in order to reflect
dependencies
Changes in v7:
* fix race between tx workqueue and device deregistration (reported by Lino)
Changes in v6:
* rebase to current linux-next
* use SET_NETDEV_DEV() for qca_spi and qca_uart
* rename binding to qca,qca7000.txt
* use qca,qca7000 compatible for both driver
* handle error cases in qca_uart_probe properly
* fix skb leak in error path of qcauart_netdev_init
* use dev_kfree_skb_any instead of kfree_skb
* take care of tx_work on close / remove
* use devm_kmalloc for tx buffer
* minor cleanups
Changes in v5:
* rebase to current linux-next
* fix alignment issues in rx path
* fix buffer overrun with big ethernet frames
* fix init of UART decoding fsm
* add device UART settings to Kconfig help
* add current-speed to slave-device binding
* merge SPI and UART binding document
* rename qca_common to qca_7k_common
* drop patch for retrieving UART settings
* several cleanups
Changes in v4:
* rebase to current linux-next
* use parameter -M for git format-patch
* change order of local variables where possible
* implement basic serdev support (without hardware flow control)
Changes in v3:
* rebase to current net-next
Changes in v2:
* fix build issue by using netif_trans_update() and dev_trans_start()
[1] - https://github.com/IoE/qca7000
Stefan Wahren (17):
net: qualcomm: qca_7k: clean up header includes
net: qca_framing: use u16 for frame offset
net: qca_7k: Use BIT macro
net: qca_spi: Use SET_NETDEV_DEV()
net: qualcomm: use net_device_ops instead of direct call
net: qualcomm: Improve readability of length defines
net: qca_spi: remove QCASPI_MTU
net: qualcomm: move qcaspi_tx_cmd to qca_spi.c
net: qca_spi: Clarify MODULE_DESCRIPTION
net: qualcomm: rename qca_framing.c to qca_7k_common.c
net: qualcomm: prepare frame decoding for UART driver
net: qualcomm: make qca_7k_common a separate kernel module
dt-bindings: qca7000-spi: Rework binding
dt-bindings: qca7000: rename binding
dt-bindings: slave-device: add current-speed property
dt-bindings: qca7000: append UART interface to binding
net: qualcomm: add QCA7000 UART driver
.../devicetree/bindings/net/qca,qca7000.txt | 88 +++++
.../devicetree/bindings/net/qca-qca7000-spi.txt | 47 ---
.../devicetree/bindings/serial/slave-device.txt | 9 +
drivers/net/ethernet/qualcomm/Kconfig | 24 +-
drivers/net/ethernet/qualcomm/Makefile | 7 +-
drivers/net/ethernet/qualcomm/qca_7k.c | 30 +-
drivers/net/ethernet/qualcomm/qca_7k.h | 15 +-
.../qualcomm/{qca_framing.c => qca_7k_common.c} | 26 +-
.../qualcomm/{qca_framing.h => qca_7k_common.h} | 24 +-
drivers/net/ethernet/qualcomm/qca_debug.c | 5 +-
drivers/net/ethernet/qualcomm/qca_spi.c | 48 ++-
drivers/net/ethernet/qualcomm/qca_spi.h | 5 +-
drivers/net/ethernet/qualcomm/qca_uart.c | 423 +++++++++++++++++++++
13 files changed, 632 insertions(+), 119 deletions(-)
create mode 100644 Documentation/devicetree/bindings/net/qca,qca7000.txt
delete mode 100644 Documentation/devicetree/bindings/net/qca-qca7000-spi.txt
rename drivers/net/ethernet/qualcomm/{qca_framing.c => qca_7k_common.c} (85%)
rename drivers/net/ethernet/qualcomm/{qca_framing.h => qca_7k_common.h} (86%)
create mode 100644 drivers/net/ethernet/qualcomm/qca_uart.c
--
2.1.4
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