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realtek: pcs: rtl838x: use SerDes hardware modes
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Switch RTL838X SerDes setup to use the internal SerDes hardware modes
instead of the PHY_INTERFACE_MODE_* modes.

Use the generic mapper in the beginning of the SerDes setup and convert
all affected functions to the different mode type. This will be moved
out to the generic pcs_config later.

Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/21480
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Jonas Jelonek 2026-01-02 17:12:47 +00:00 • committed by Robert Marko
parent f47453863f
commit e4fd28e989
1 changed files with 28 additions and 20 deletions
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48
target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c
View file

@ -479,18 +479,19 @@ static void rtpcs_838x_sds_reset(struct rtpcs_serdes *sds)
dev_info(sds->ctrl->dev, "SerDes %d reset\n", sds->id);
}
static bool rtpcs_838x_sds_is_mode_supported(struct rtpcs_serdes *sds, phy_interface_t mode)
static bool rtpcs_838x_sds_is_hw_mode_supported(struct rtpcs_serdes *sds,
enum rtpcs_sds_mode hw_mode)
{
switch (sds->id) {
case 0 ... 3:
return mode == PHY_INTERFACE_MODE_QSGMII;
return hw_mode == RTPCS_SDS_MODE_QSGMII;
case 4:
return mode == PHY_INTERFACE_MODE_QSGMII ||
mode == PHY_INTERFACE_MODE_SGMII ||
mode == PHY_INTERFACE_MODE_1000BASEX;
return hw_mode == RTPCS_SDS_MODE_QSGMII ||
hw_mode == RTPCS_SDS_MODE_SGMII ||
hw_mode == RTPCS_SDS_MODE_1000BASEX;
case 5:
return mode == PHY_INTERFACE_MODE_SGMII ||
mode == PHY_INTERFACE_MODE_1000BASEX;
return hw_mode == RTPCS_SDS_MODE_SGMII ||
hw_mode == RTPCS_SDS_MODE_1000BASEX;
default:
return false;
}
@ -516,21 +517,21 @@ static int rtpcs_838x_sds_power(struct rtpcs_serdes *sds, bool power_on)
}
static int rtpcs_838x_sds_set_mode(struct rtpcs_serdes *sds,
phy_interface_t mode)
enum rtpcs_sds_mode hw_mode)
{
u8 sds_mode_shift, int_mode_shift;
u32 sds_mode_val, int_mode_val;
switch (mode) {
case PHY_INTERFACE_MODE_1000BASEX:
switch (hw_mode) {
case RTPCS_SDS_MODE_1000BASEX:
sds_mode_val = 0x4;
int_mode_val = 0x1;
break;
case PHY_INTERFACE_MODE_SGMII:
case RTPCS_SDS_MODE_SGMII:
sds_mode_val = 0x2;
int_mode_val = 0x2;
break;
case PHY_INTERFACE_MODE_QSGMII:
case RTPCS_SDS_MODE_QSGMII:
sds_mode_val = 0x6;
int_mode_val = 0x5;
break;
@ -554,7 +555,7 @@ static int rtpcs_838x_sds_set_mode(struct rtpcs_serdes *sds,
}
static int rtpcs_838x_sds_patch(struct rtpcs_serdes *sds,
phy_interface_t mode)
enum rtpcs_sds_mode hw_mode)
{
struct rtpcs_ctrl *ctrl = sds->ctrl;
u8 sds_id = sds->id;
@ -571,15 +572,15 @@ static int rtpcs_838x_sds_patch(struct rtpcs_serdes *sds,
mdelay(1);
}
switch (mode) {
case PHY_INTERFACE_MODE_1000BASEX:
switch (hw_mode) {
case RTPCS_SDS_MODE_1000BASEX:
if (sds_id == 4)
rtpcs_838x_sds_patch_4_fiber_6275b(ctrl);
else if (sds_id == 5)
rtpcs_838x_sds_patch_5_fiber_6275b(ctrl);
break;
case PHY_INTERFACE_MODE_QSGMII:
case RTPCS_SDS_MODE_QSGMII:
if (sds_id == 0 || sds_id == 1)
rtpcs_838x_sds_patch_01_qsgmii_6275b(ctrl);
else if (sds_id == 2 || sds_id == 3)
@ -618,10 +619,15 @@ static int rtpcs_838x_init_serdes_common(struct rtpcs_ctrl *ctrl)
static int rtpcs_838x_setup_serdes(struct rtpcs_serdes *sds,
phy_interface_t mode)
{
enum rtpcs_sds_mode hw_mode;
int ret;
if (!rtpcs_838x_sds_is_mode_supported(sds, mode))
return -EINVAL;
ret = rtpcs_sds_determine_hw_mode(sds, mode, &hw_mode);
if (ret < 0)
return -ENOTSUPP;
if (!rtpcs_838x_sds_is_hw_mode_supported(sds, hw_mode))
return -ENOTSUPP;
rtpcs_838x_sds_power(sds, false);
@ -629,11 +635,13 @@ static int rtpcs_838x_setup_serdes(struct rtpcs_serdes *sds,
rtpcs_sds_write(sds, 0x0, 0x0, 0xc00);
rtpcs_sds_write(sds, 0x0, 0x3, 0x7146);
ret = rtpcs_838x_sds_set_mode(sds, mode);
ret = rtpcs_838x_sds_set_mode(sds, hw_mode);
if (ret)
return ret;
rtpcs_838x_sds_patch(sds, mode);
sds->hw_mode = hw_mode;
rtpcs_838x_sds_patch(sds, hw_mode);
rtpcs_838x_sds_reset(sds);
/* release reset */