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| author | Parthiban Veerasooran <Parthiban.Veerasooran@microchip.com> | 2024-09-09 13:55:03 +0530 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-09-11 20:53:42 -0700 |
| commit | 375d1e0278cca70ce801d52c6b95c7a3c00f249c (patch) | |
| tree | d7c95b1de3f93db56f3cc874d1900b88dd00981b /include | |
| parent | net: ethernet: oa_tc6: implement register write operation (diff) | |
| download | linux-375d1e0278cca70ce801d52c6b95c7a3c00f249c.tar.gz linux-375d1e0278cca70ce801d52c6b95c7a3c00f249c.zip | |
net: ethernet: oa_tc6: implement register read operation
Implement register read operation according to the control communication
specified in the OPEN Alliance 10BASE-T1x MACPHY Serial Interface
document. Control read commands are used by the SPI host to read
registers within the MAC-PHY. Each control read commands are composed of
a 32 bits control command header.
The MAC-PHY ignores all data from the SPI host following the control
header for the remainder of the control read command. Control read
commands can read either a single register or multiple consecutive
registers. When multiple consecutive registers are read, the address is
automatically post-incremented by the MAC-PHY. Reading any unimplemented
or undefined registers shall return zero.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Parthiban Veerasooran <Parthiban.Veerasooran@microchip.com>
Link: https://patch.msgid.link/20240909082514.262942-4-Parthiban.Veerasooran@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/oa_tc6.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/oa_tc6.h b/include/linux/oa_tc6.h index 99c490f1c8a8..85aeecf87306 100644 --- a/include/linux/oa_tc6.h +++ b/include/linux/oa_tc6.h @@ -15,3 +15,6 @@ struct oa_tc6 *oa_tc6_init(struct spi_device *spi); int oa_tc6_write_register(struct oa_tc6 *tc6, u32 address, u32 value); int oa_tc6_write_registers(struct oa_tc6 *tc6, u32 address, u32 value[], u8 length); +int oa_tc6_read_register(struct oa_tc6 *tc6, u32 address, u32 *value); +int oa_tc6_read_registers(struct oa_tc6 *tc6, u32 address, u32 value[], + u8 length); |