From 0a18c64dcc2f02aa078bbc246fc71cc224504712 Mon Sep 17 00:00:00 2001
From: Lynn-Becky <60915579+Lynn-Becky@users.noreply.github.com>
Date: Sun, 28 Jun 2026 22:47:33 +0800
Subject: [PATCH] fix(machine): move SWTG024AS-specific SDS0 setup to machine.c

---
 machine.c      | 11 +++++++++++
 rtl837x_init.c | 10 ----------
 2 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/machine.c b/machine.c
index 0004224..e467c48 100644
--- a/machine.c
+++ b/machine.c
@@ -941,10 +941,21 @@ __code const struct machine machine = {
 
 void machine_custom_init(void)
 {
+    uint16_t pval;
+
     reg_bit_set(RTL837X_REG_LED_GLB_IO_EN, 6);
     reg_bit_set(RTL837X_REG_LED_MODE, 17);
     reg_bit_clear(RTL837X_REG_LED_MODE, 9);
     reg_bit_clear(RTL837X_REG_LED_MODE, 7);
+
+    // OEM firmware sets these companion SDS0 polarity bits for the RTL8221B.
+    sds_read(0, 0, 0);
+    pval = SFR_DATA_U16;
+    sds_write_v(0, 0, 0, pval | 0x100);
+
+    sds_read(0, 6, 2);
+    pval = SFR_DATA_U16;
+    sds_write_v(0, 6, 2, pval | 0x4000);
 }
 
 #elif defined MACHINE_ZX310S_4T2XT
diff --git a/rtl837x_init.c b/rtl837x_init.c
index e665688..50d94f6 100644
--- a/rtl837x_init.c
+++ b/rtl837x_init.c
@@ -76,16 +76,6 @@ void static sds_init(void)
 				sds_read(0, 0, 0);
 				pval = SFR_DATA_U16;
 				sds_write_v(0, 0, 0, pval | 0x200);
-#if defined MACHINE_SWTG024AS_V2_0
-				// OEM firmware also sets the companion SDS0 polarity bits.
-				sds_read(0, 0, 0);
-				pval = SFR_DATA_U16;
-				sds_write_v(0, 0, 0, pval | 0x100);
-
-				sds_read(0, 6, 2);
-				pval = SFR_DATA_U16;
-				sds_write_v(0, 6, 2, pval | 0x4000);
-#endif
 			}
 		} else if (machine.n_10g == 1) {
 			reg_read_m(RTL837X_CFG_PHY_MDI_REVERSE);