diff options
| author | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2026-03-18 16:06:26 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-03-23 17:32:19 -0700 |
| commit | 68cff4fff61fb69ef7bb1f6302d4766822a395cc (patch) | |
| tree | 90369f405700ebcc3830dc86792f092cd209f853 /include | |
| parent | 0837578667358bbeeb0aa2fcc98935f4536696c5 (diff) | |
net: stmmac: add BASE-X support to integrated PCS
The integrated PCS supports 802.3z (BASE-X) modes when the Synopsys
IP is coupled with an appropriate SerDes to provide the electrical
interface. The PCS presents a TBI interface to the SerDes for this.
Thus, the BASE-X related registers are only present when TBI mode is
supported.
dwmac-qcom-ethqos added support for using 2.5G with the integrated PCS
by calling dwmac_ctrl_ane() directly.
Add support for the following to the integrated PCS:
- 1000BASE-X protocol unconditionally.
- 2500BASE-X if the coupled SerDes supports 2.5G speed.
- The above without autonegotiation.
- If the PCS supports TBI, then optional BASE-X autonegotiation for each
of the above.
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1w2tPe-0000000DYAp-1qpV@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/stmmac.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index 565bb394b194..5b2bece81448 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -212,6 +212,7 @@ enum dwmac_core_type { #define STMMAC_FLAG_EN_TX_LPI_CLK_PHY_CAP BIT(12) #define STMMAC_FLAG_HWTSTAMP_CORRECT_LATENCY BIT(13) #define STMMAC_FLAG_KEEP_PREAMBLE_BEFORE_SFD BIT(14) +#define STMMAC_FLAG_SERDES_SUPPORTS_2500M BIT(15) struct mac_device_info; |