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realtek: mdio-serdes: reorganize RTL839x TGRX0/1 pages

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The four TGRX pages are currently mapped into the page range 4-7 for even
10G serdes. This is only partly right. TGRX0/1 better aligns with RTL93xx
pages TGX_STD_0/TGX_STD_1. Change the mapping. No code update needed as
the pages are not yet used anywhere.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/22633
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Markus Stockhausen
2026-03-30 15:35:13 +02:00
committed by Hauke Mehrtens
parent e6b297a970
commit 3f76802660
1 changed files with 7 additions and 4 deletions
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target/linux/realtek/files-6.18/drivers/net/mdio/mdio-realtek-otto-serdes.c
+7 -4
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@@ -229,10 +229,11 @@ static int rtsds_838x_write(struct rtsds_ctrl *ctrl, int sds, int page, int regn
* 0x01 (SDS_EXT) XSG0/1 XSG1/1 XSG0/1 XSG1/1
* 0x02 (FIB) XSG0/2 XSG1/2 XSG0/2 XSG1/2
* 0x03 (FIB_EXT) XSG0/3 XSG1/3 XSG0/3 XSG1/3
* 0x04 (TGR_STD_0) <zero> <zero> TGRX/0 <zero>
* 0x05 (TGR_STD_1) <zero> <zero> TGRX/1 <zero>
* ... <zero> <zero> <zero> <zero>
* 0x06 (TGR_PRO_0) <zero> <zero> TGRX/2 <zero>
* 0x07 (TGR_PRO_1) <zero> <zero> TGRX/3 <zero>
* 0x08 (TGX_STD_0) <zero> <zero> TGRX/0 <zero>
* 0x09 (TGX_STD_1) <zero> <zero> TGRX/1 <zero>
* ... <zero> <zero> <zero> <zero>
* 0x24 (ANA_1G2) ANA_RG ANA_RG <zero> <zero>
* 0x25 (ANA_1G2_EXT) ANA_RG_EXT ANA_RG_EXT <zero> <zero>
@@ -246,10 +247,12 @@ static int rtsds_839x_reg_offset(int sds, int page, int regnum)
int offset = ((sds & 0xfe) << 9) + ((regnum & 0xfe) << 1);
int sds5g = (GENMASK(11, 10) | GENMASK(7, 0)) & BIT(sds);
if (page < 4)
if (page < 0x4)
return offset + (page << 6) + ((sds & 1) << 8);
else if (page >= 4 && page <=7 && (sds == 8 || sds == 12))
else if (page >= 0x6 && page <= 0x7 && (sds == 8 || sds == 12))
return offset + (page << 6) + 0x100;
else if (page >= 0x8 && page <= 0x9 && (sds == 8 || sds == 12))
return offset + ((page - 0x2) << 6) + 0x80;
else if (page >= 0x24 && page <= 0x25 && sds5g)
return offset + ((page - 0x1c) << 6) + 0x100 + ((sds & 1) << 7);
else if (page >= 0x2e && page <= 0x2f && !sds5g)