diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2024-12-09 18:36:05 -0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-12-09 18:36:06 -0800 |
| commit | a0e1fc921cb0651cd11469bf5378ec342bf7094d (patch) | |
| tree | 6649189f49aa5ad9b282711b15af5eb2741469ed /include/linux/phy.h | |
| parent | 32fd46f5b69e9a2e1206d576359e533e5b7c4694 (diff) | |
| parent | 6bc6234cbd5e9f7a4d8a20aa4d5f0c891e099649 (diff) | |
Merge branch 'add-support-for-synopsis-dwmac-ip-on-nxp-automotive-socs-s32g2xx-s32g3xx-s32r45'
Jan Petrous via says:
====================
Add support for Synopsis DWMAC IP on NXP Automotive SoCs S32G2xx/S32G3xx/S32R45
The SoC series S32G2xx and S32G3xx feature one DWMAC instance,
the SoC S32R45 has two instances. The devices can use RGMII/RMII/MII
interface over Pinctrl device or the output can be routed
to the embedded SerDes for SGMII connectivity.
The provided stmmac glue code implements only basic functionality,
interface support is restricted to RGMII only. More, including
SGMII/SerDes support will come later.
This patchset adds stmmac glue driver based on downstream NXP git [0].
[0] https://github.com/nxp-auto-linux/linux
v7: https://lore.kernel.org/20241202-upstream_s32cc_gmac-v7-0-bc3e1f9f656e@oss.nxp.com
v6: https://lore.kernel.org/20241124-upstream_s32cc_gmac-v6-0-dc5718ccf001@oss.nxp.com
v5: https://lore.kernel.org/20241119-upstream_s32cc_gmac-v5-0-7dcc90fcffef@oss.nxp.com
v4: https://lore.kernel.org/20241028-upstream_s32cc_gmac-v4-0-03618f10e3e2@oss.nxp.com
v3: https://lore.kernel.org/20241013-upstream_s32cc_gmac-v3-0-d84b5a67b930@oss.nxp.com
====================
Link: https://patch.msgid.link/20241205-upstream_s32cc_gmac-v8-0-ec1d180df815@oss.nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux/phy.h')
| -rw-r--r-- | include/linux/phy.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/linux/phy.h b/include/linux/phy.h index bb157136351e..e597a32cc787 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -298,6 +298,29 @@ static inline const char *phy_modes(phy_interface_t interface) } } +/** + * rgmii_clock - map link speed to the clock rate + * @speed: link speed value + * + * Description: maps RGMII supported link speeds + * into the clock rates. + * + * Returns: clock rate or negative errno + */ +static inline long rgmii_clock(int speed) +{ + switch (speed) { + case SPEED_10: + return 2500000; + case SPEED_100: + return 25000000; + case SPEED_1000: + return 125000000; + default: + return -EINVAL; + } +} + #define PHY_INIT_TIMEOUT 100000 #define PHY_FORCE_TIMEOUT 10 |