[openwrt/openwrt] realtek: pcs: rtl930x: add standalone USXGMII-SX setup

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/956cf4a47c5adee11a047dd413ca4ee0711ebe92

commit 956cf4a47c5adee11a047dd413ca4ee0711ebe92
Author: Jonas Jelonek <jelonek.jonas at gmail.com>
AuthorDate: Tue Jan 13 11:02:49 2026 +0000

    realtek: pcs: rtl930x: add standalone USXGMII-SX setup
    
    Add everything that's needed to setup USXGMII-SX mode (10G single port
    USXGMII). This includes patch sequences and adjustments to the symbol
    error reset and reading, and allowing it in the SerDes setup.
    
    Signed-off-by: Jonas Jelonek <jelonek.jonas at gmail.com>
    Link: https://github.com/openwrt/openwrt/pull/21930
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 .../files-6.12/drivers/net/pcs/pcs-rtl-otto.c      | 59 ++++++++++++++++++++--
 1 file changed, 56 insertions(+), 3 deletions(-)

diff --git a/target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c b/target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c
index a13b591af8..928c636388 100644
--- a/target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c
+++ b/target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c
@@ -2429,8 +2429,8 @@ static int rtpcs_930x_sds_sym_err_reset(struct rtpcs_serdes *sds,
 	case RTPCS_SDS_MODE_10GBASER:
 	case RTPCS_SDS_MODE_USXGMII_10GSXGMII:
 		/* Read twice to clear */
-		rtpcs_sds_read(sds, 5, 1);
-		rtpcs_sds_read(sds, 5, 1);
+		rtpcs_sds_read(sds, 0x5, 0x1);
+		rtpcs_sds_read(sds, 0x5, 0x1);
 		return 0;
 
 	case RTPCS_SDS_MODE_XSGMII:
@@ -2484,7 +2484,8 @@ static u32 rtpcs_930x_sds_sym_err_get(struct rtpcs_serdes *sds,
 	case RTPCS_SDS_MODE_1000BASEX:
 	case RTPCS_SDS_MODE_SGMII:
 	case RTPCS_SDS_MODE_10GBASER:
-		v = rtpcs_sds_read(sds, 5, 1);
+	case RTPCS_SDS_MODE_USXGMII_10GSXGMII:
+		v = rtpcs_sds_read(sds, 0x5, 0x1);
 		return v & 0xff;
 
 	default:
@@ -2518,6 +2519,7 @@ static int rtpcs_930x_sds_check_calibration(struct rtpcs_serdes *sds,
 		}
 		break;
 	case RTPCS_SDS_MODE_10GBASER:
+	case RTPCS_SDS_MODE_USXGMII_10GSXGMII:
 	case RTPCS_SDS_MODE_USXGMII_10GQXGMII:
 		if (errors2 > 0) {
 			pr_info("%s: 10G error rate too high\n", __func__);
@@ -2768,6 +2770,46 @@ static const struct rtpcs_sds_config rtpcs_930x_sds_cfg_xsgmii_odd[] =
 	{0x2D, 0x13, 0x3C87}, {0x2D, 0x14, 0x1808},
 };
 
+static const struct rtpcs_sds_config rtpcs_930x_sds_cfg_usxgmii_sx_even[] =
+{
+	{0x06, 0x00, 0x0000}, {0x06, 0x0D, 0x0F00}, {0x06, 0x0E, 0x055A}, {0x07, 0x10, 0x6003},
+	{0x06, 0x1D, 0x0600}, {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 eee*/
+	{0x06, 0x03, 0xc45c},
+};
+
+static const struct rtpcs_sds_config rtpcs_930x_sds_cfg_usxgmii_sx_odd[] =
+{
+	{0x06, 0x00, 0x0000}, {0x06, 0x0D, 0x0F00}, {0x06, 0x0E, 0x055A}, {0x07, 0x10, 0x6003},
+	{0x06, 0x1D, 0x0600}, {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 eee*/
+	{0x06, 0x03, 0xc45c},
+};
+
 static void rtpcs_930x_sds_usxgmii_config(struct rtpcs_serdes *sds, int nway_en,
 					  u32 opcode, u32 am_period,
 					  u32 all_am_markers, u32 an_table,
@@ -2843,6 +2885,16 @@ static void rtpcs_930x_sds_patch(struct rtpcs_serdes *sds,
 
 		return;
 
+	case RTPCS_SDS_MODE_USXGMII_10GSXGMII:
+		if (is_even_sds) {
+			config = rtpcs_930x_sds_cfg_usxgmii_sx_even;
+			count = ARRAY_SIZE(rtpcs_930x_sds_cfg_usxgmii_sx_even);
+		} else {
+			config = rtpcs_930x_sds_cfg_usxgmii_sx_odd;
+			count = ARRAY_SIZE(rtpcs_930x_sds_cfg_usxgmii_sx_odd);
+		}
+		break;
+
 	case RTPCS_SDS_MODE_USXGMII_10GQXGMII:
 	default:
 		return;
@@ -2895,6 +2947,7 @@ static int rtpcs_930x_setup_serdes(struct rtpcs_serdes *sds,
 	case RTPCS_SDS_MODE_SGMII:
 	case RTPCS_SDS_MODE_2500BASEX:
 	case RTPCS_SDS_MODE_10GBASER:
+	case RTPCS_SDS_MODE_USXGMII_10GSXGMII:
 	case RTPCS_SDS_MODE_USXGMII_10GQXGMII:
 	case RTPCS_SDS_MODE_XSGMII:
 		break;