| Commit message (Collapse) | Author | Age | Files | Lines |
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KSZ8463 switch is a 3-port switch based from KSZ8863. Its major
difference from other KSZ SPI switches is its register access is not a
simple continual 8-bit transfer with automatic address increase but uses
a byte-enable mechanism specifying 8-bit, 16-bit, or 32-bit access. Its
registers are also defined in 16-bit format because it shares a design
with a MAC controller using 16-bit access. As a result some common
register accesses need to be re-arranged.
This patch adds the basic structure for using KSZ8463. It cannot use the
same regmap table for other KSZ switches as it interprets the 16-bit
value as little-endian and its SPI commands are different.
KSZ8463 uses a byte-enable mechanism to specify 8-bit, 16-bit, and 32-bit
access. The register is first shifted right by 2 then left by 4. Extra
4 bits are added. If the access is 8-bit one of the 4 bits is set. If
the access is 16-bit two of the 4 bits are set. If the access is 32-bit
all 4 bits are set. The SPI command for read or write is then added.
Because of this register transformation separate SPI read and write
functions are provided for KSZ8463.
KSZ8463's internal PHYs use standard PHY register definitions so there is
no need to remap things. However, the hardware has a bug that the high
word and low word of the PHY id are swapped. In addition the port
registers are arranged differently so KSZ8463 has its own mapping for
port registers and PHY registers. Therefore the PORT_CTRL_ADDR macro is
replaced with the get_port_addr helper function.
Signed-off-by: Tristram Ha <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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The KSZ DSA driver starts a timer to read MIB counters periodically to
avoid count overrun. During system suspend this will give an error for
not able to write to register as the SPI system returns an error when
it is in suspend state. This implementation stops the timer when the
system goes into suspend and restarts it when resumed.
Signed-off-by: Tristram Ha <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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LAN9646 switch is a 6-port switch with functions like KSZ9897. It has
4 internal PHYs and 1 SGMII port. The chip id read from hardware is
same as KSZ9477, so software driver needs to create a new chip id and
group allowable functions under its chip data structure to
differentiate the product.
Signed-off-by: Tristram Ha <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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asm/unaligned.h is always an include of asm-generic/unaligned.h;
might as well move that thing to linux/unaligned.h and include
that - there's nothing arch-specific in that header.
auto-generated by the following:
for i in `git grep -l -w asm/unaligned.h`; do
sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i
done
for i in `git grep -l -w asm-generic/unaligned.h`; do
sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i
done
git mv include/asm-generic/unaligned.h include/linux/unaligned.h
git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h
sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild
sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h
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Replace ksz8830 with ksz88x3 for CHIP_ID definition and other
strings. This due to KSZ8830 not being an actual switch but the Chip
ID shared among KSZ8863/8873 switches, impossible to differentiate
from their Chip ID or Revision ID registers.
Now all KSZ*_CHIP_ID macros refer to actual, existing switches which
removes confusion.
Signed-off-by: Pieter Van Trappen <[email protected]>
Acked-by: Arun Ramadoss <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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KSZ8895/KSZ8864 is a switch family between KSZ8863/73 and KSZ8795, so it
shares some registers and functions in those switches already
implemented in the KSZ DSA driver.
Signed-off-by: Tristram Ha <[email protected]>
Tested-by: Pieter Van Trappen <[email protected]>
Reviewed-by: Oleksij Rempel <[email protected]>
Signed-off-by: Jakub Kicinski <[email protected]>
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The ID table already has respective entry and MODULE_DEVICE_TABLE and
creates proper alias for SPI driver. Having another MODULE_ALIAS causes
the alias to be duplicated.
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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Core in spi_register_driver() already sets the .owner, so driver
does not need to.
Signed-off-by: Krzysztof Kozlowski <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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This commit introduces support for the KSZ8567, a robust 7-port
Ethernet switch. The KSZ8567 features two RGMII/MII/RMII interfaces,
each capable of gigabit speeds, complemented by five 10/100 Mbps
MAC/PHYs.
Signed-off-by: Philippe Schenker <[email protected]>
Acked-by: Arun Ramadoss <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Paolo Abeni <[email protected]>
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Centralize the switch shutdown routine in a dedicated function,
ksz_switch_shutdown(), to enhance code maintainability and reduce
redundancy. This change abstracts the common shutdown operations
previously duplicated in ksz9477_i2c_shutdown() and ksz_spi_shutdown().
This refactoring is a preparatory step for an upcoming patch to avoid
reset on shutdown if Wake-on-LAN (WoL) is enabled.
Signed-off-by: Oleksij Rempel <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
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It is not immediately obvious that this driver allocates, via the
KSZ_REGMAP_TABLE() macro, 3 regmaps for register access: dev->regmap[0]
for 8-bit access, dev->regmap[1] for 16-bit and dev->regmap[2] for
32-bit access.
In future changes that add support for reg_fields, each field will have
to specify through which of the 3 regmaps it's going to go. Add an enum
now, to denote one of the 3 register access widths, and make the code go
through some wrapper functions for easier review and further
modification.
Signed-off-by: Vladimir Oltean <[email protected]>
Signed-off-by: Oleksij Rempel <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>
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Probe functions uses normal dev_err() to check error conditions
and print messages. Replace dev_err() with dev_err_probe() to
have more standardized format and error logging.
Signed-off-by: Rakesh Sankaranarayanan <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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compatible string
Add KSZ9563 inside ksz_switch_chips structure with
port_nirq as 3. KSZ9563 use KSZ9893 switch parameters
but port_nirq count is 3 for KSZ9563 whereas 2 for
KSZ9893. Add KSZ9563 inside ksz_switch_chips as a separate
member and from device tree map compatible string into
KSZ9563 inside ksz_spi.c and ksz9477_i2c.c.
Global Chip ID 1 and 2 registers read value 9893, select
sku based on Global Chip ID 4 Register which read 0x1c
for KSZ9563.
Signed-off-by: Rakesh Sankaranarayanan <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Remove unnecessary set_drvdata(NULL) function in ->remove(),
the driver_data will be set to NULL in device_unbind_cleanup()
after calling ->remove().
Signed-off-by: Yang Yingliang <[email protected]>
Signed-off-by: Jakub Kicinski <[email protected]>
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Add support for the KSZ9896 6-port Gigabit Ethernet Switch to the
ksz9477 driver.
Although the KSZ9896 is already listed in the device tree binding
documentation since a1c0ed24fe9b (dt-bindings: net: dsa: document
additional Microchip KSZ9477 family switches) the chip id
(0x00989600) is not recognized by ksz_switch_detect() and rejected
by the driver.
The KSZ9896 is similar to KSZ9897 but has only one configurable
MII/RMII/RGMII/GMII cpu port.
Signed-off-by: Romain Naour <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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This patch enables the interrupts for internal phy link detection for
LAN937x. The interrupt enable bits are active low. There is global
interrupt mask for each port. And each port has the individual interrupt
mask for TAS. QCI, SGMII, PTP, PHY and ACL.
The first level of interrupt domain is registered for global port
interrupt and second level of interrupt domain for the individual port
interrupts. The phy interrupt is enabled in the lan937x_mdio_register
function. Interrupt from which port is raised will be detected based on
the interrupt host data.
Signed-off-by: Arun Ramadoss <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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This is complex driver with support for different chips with different
layouts. To detect at least some bugs earlier, we should validate register
accesses by using regmap_access_table support.
Signed-off-by: Oleksij Rempel <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Add separate entry for the KSZ8563 chip. According to the documentation
it can support Gbit only on RGMII port. So, we will need to be able to
describe in the followup patch.
Signed-off-by: Oleksij Rempel <[email protected]>
Reviewed-by: Vladimir Oltean <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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This patch removes the of_match_ptr() pointer when dereferencing the
ksz_dt_ids which produce the unused variable warning.
Reported-by: kernel test robot <[email protected]>
Suggested-by: Arnd Bergmann <[email protected]>
Signed-off-by: Arun Ramadoss <[email protected]>
Reviewed-by: Arnd Bergmann <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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This patch add the LAN937x part support in the existing ksz_spi_probe.
Signed-off-by: Arun Ramadoss <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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This patch removes the struct ksz8 from ksz8.h which is no longer
needed. The platform bus specific details are now deferenced through
dev->priv.
Signed-off-by: Arun Ramadoss <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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As of now, there are two spi probes, one ksz8795_spi.c and other
ksz9477_spi.c. This patch combines two files into single ksz_spi.c. The
difference between the two are regmap config and struct ksz8. The regmap
config is assigned based on the platform data. And struct ksz8 is left
untouched, as it is used only ksz8795.c. It can be used for all
other switches also in future.
Signed-off-by: Arun Ramadoss <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Rename ksz_spi.c to ksz9477_spi.c and update Kconfig in preparation to add
more KSZ switch drivers.
Signed-off-by: Tristram Ha <[email protected]>
Reviewed-by: Woojung Huh <[email protected]>
Reviewed-by: Pavel Machek <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Replace license with GPL.
Signed-off-by: Tristram Ha <[email protected]>
Reviewed-by: Woojung Huh <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Acked-by: Pavel Machek <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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ksz9477 is superset of ksz9xx series, driver just works
out of the box for ksz9897 chip with this patch.
Signed-off-by: Lad, Prabhakar <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The KSZ9477 is a fully integrated layer 2, managed, 7 ports GigE switch
with numerous advanced features. 5 ports incorporate 10/100/1000 Mbps PHYs.
The other 2 ports have interfaces that can be configured as SGMII, RGMII, MII
or RMII. Either of these may connect directly to a host processor or
to an external PHY. The SGMII port may interface to a fiber optic transceiver.
This driver currently supports vlan, fdb, mdb & mirror dsa switch operations.
Reviewed-by: Florian Fainelli <[email protected]>
Signed-off-by: Woojung Huh <[email protected]>
Reviewed-by: Andrew Lunn <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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