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realtek: dsa,pcs: rtl930x: Disable SerDes patching for 10G-QXGMII

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The code to add bootstrapping for 10G-QXGMII on RTL930X broke the only
devices which are using 10G-QXGMII on RTL930X (Plasma Cloud PSX8+PSX10) in
OpenWrt. It is currently unknown what other changes are pending to get this
correctly working. But both the `rtpcs_930x_sds_usxgmii_config()` call and
the write of the "magic" SerDes values in the patching process break the
SerDes connected to the RTL8224 PHYs.

The Plasma Cloud PSX8+PSX10 devices get their RTL8224 and the 10G-QXGMII
SerDes bootstrapped directly by u-boot.

Fixes: dca20f91ea ("realtek: add serdes patch for 10G_QXGMII")
Signed-off-by: Sven Eckelmann <se@simonwunderlich.de>
Link: https://github.com/openwrt/openwrt/pull/20588
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Sven Eckelmann 2025-10-29 16:00:03 +01:00 • committed by Robert Marko
parent 1cb347579a
commit 87c76704d2
1 changed files with 1 additions and 48 deletions
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49
target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c
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@ -1756,46 +1756,6 @@ static const sds_config rtpcs_930x_sds_cfg_10g_2500bx_odd[] =
{0x2D, 0x13, 0x3C87}, {0x2D, 0x14, 0x1808},
};
static sds_config rtpcs_930x_sds_cfg_usxgmii_qx_even[] =
{
{0x06, 0x00, 0x0000}, {0x06, 0x0D, 0x0F00}, {0x06, 0x0E, 0x055A}, {0x06, 0x1D, 0x0600},
{0x07, 0x10, 0x6003}, {0x06, 0x13, 0x68C1}, {0x06, 0x14, 0xF021}, {0x07, 0x06, 0x1401},
{0x21, 0x03, 0x8206}, {0x21, 0x05, 0x40B0}, {0x21, 0x06, 0x0010}, {0x21, 0x07, 0xF09F},
{0x21, 0x0C, 0x0007}, {0x21, 0x0D, 0x6009}, {0x21, 0x0E, 0x0000}, {0x21, 0x0F, 0x0008},
{0x2E, 0x00, 0xA668}, {0x2E, 0x01, 0x2088}, {0x2E, 0x02, 0xD020}, {0x2E, 0x06, 0xC000},
{0x2E, 0x0B, 0x1892}, {0x2E, 0x0F, 0xFFDF}, {0x2E, 0x11, 0x8280}, {0x2E, 0x12, 0x0484},
{0x2E, 0x13, 0x027F}, {0x2E, 0x14, 0x1311}, {0x2E, 0x17, 0xA100}, {0x2E, 0x1A, 0x0001},
{0x2E, 0x1C, 0x0400}, {0x2F, 0x01, 0x0300}, {0x2F, 0x02, 0x1017}, {0x2F, 0x03, 0xFFDF},
{0x2F, 0x05, 0x7F7C}, {0x2F, 0x07, 0x8104}, {0x2F, 0x08, 0x0001}, {0x2F, 0x09, 0xFFD4},
{0x2F, 0x0A, 0x7C2F}, {0x2F, 0x0E, 0x003F}, {0x2F, 0x0F, 0x0121}, {0x2F, 0x10, 0x0020},
{0x2F, 0x11, 0x8840},
{0x2B, 0x13, 0x0050}, {0x2B, 0x18, 0x8E88}, {0x2B, 0x19, 0x4902}, {0x2B, 0x1D, 0x2501},
{0x2D, 0x13, 0x0050}, {0x2D, 0x18, 0x8E88}, {0x2D, 0x19, 0x4902}, {0x2D, 0x1D, 0x2641},
{0x2F, 0x13, 0x0050}, {0x2F, 0x18, 0x8E88}, {0x2F, 0x19, 0x4902}, {0x2F, 0x1D, 0x66E1},
/* enable IEEE 802.3az EEE */
{0x06, 0x03, 0xc45c},
};
static sds_config rtpcs_930x_sds_cfg_usxgmii_qx_odd[] =
{
{0x06, 0x00, 0x0000}, {0x06, 0x0D, 0x0F00}, {0x06, 0x0E, 0x055A}, {0x06, 0x1D, 0x0600},
{0x07, 0x10, 0x6003}, {0x06, 0x13, 0x68C1}, {0x06, 0x14, 0xF021}, {0x07, 0x06, 0x1401},
{0x21, 0x03, 0x8206}, {0x21, 0x05, 0x40B0}, {0x21, 0x06, 0x0010}, {0x21, 0x07, 0xF09F},
{0x21, 0x0A, 0x0003}, {0x21, 0x0B, 0x0005}, {0x21, 0x0C, 0x0007}, {0x21, 0x0D, 0x6009},
{0x21, 0x0E, 0x0000}, {0x21, 0x0F, 0x0008},
{0x2E, 0x00, 0xA668}, {0x2E, 0x02, 0xD020}, {0x2E, 0x06, 0xC000}, {0x2E, 0x0B, 0x1892},
{0x2E, 0x0F, 0xFFDF}, {0x2E, 0x11, 0x8280}, {0x2E, 0x12, 0x0484}, {0x2E, 0x13, 0x027F},
{0x2E, 0x14, 0x1311}, {0x2E, 0x17, 0xA100}, {0x2E, 0x1A, 0x0001}, {0x2E, 0x1C, 0x0400},
{0x2F, 0x00, 0x820F}, {0x2F, 0x01, 0x0300}, {0x2F, 0x02, 0x1017}, {0x2F, 0x03, 0xFFDF},
{0x2F, 0x05, 0x7F7C}, {0x2F, 0x07, 0x8104}, {0x2F, 0x08, 0x0001}, {0x2F, 0x09, 0xFFD4},
{0x2F, 0x0A, 0x7C2F}, {0x2F, 0x0E, 0x003F}, {0x2F, 0x0F, 0x0121}, {0x2F, 0x10, 0x0020},
{0x2F, 0x11, 0x8840},
{0x2B, 0x13, 0x3D87}, {0x2B, 0x14, 0x3108},
{0x2D, 0x13, 0x3C87}, {0x2D, 0x14, 0x1808},
/* enable IEEE 802.3az EEE */
{0x06, 0x03, 0xc45c},
};
static void rtpcs_930x_sds_usxgmii_config(struct rtpcs_ctrl *ctrl, int sds,
int nway_en, u32 opcode, u32 am_period,
u32 all_am_markers, u32 an_table,
@ -1853,14 +1813,7 @@ static void rtpcs_930x_sds_patch(struct rtpcs_ctrl *ctrl, int sds, phy_interface
break;
case PHY_INTERFACE_MODE_10G_QXGMII:
if (even_sds) {
config = rtpcs_930x_sds_cfg_usxgmii_qx_even;
count = ARRAY_SIZE(rtpcs_930x_sds_cfg_usxgmii_qx_even);
} else {
config = rtpcs_930x_sds_cfg_usxgmii_qx_odd;
count = ARRAY_SIZE(rtpcs_930x_sds_cfg_usxgmii_qx_odd);
}
break;
return;
default:
pr_warn("%s: unsupported mode %s on serdes %d\n", __func__, phy_modes(mode), sds);