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realtek: allow different serdes patch sequences

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Prepare the SerDes patch function to allow different patch sequences
depending on the phy mode. Patches are required to allow devices with a
lightweight bootloader (one that doesn't have a "rtk network init"
command) to use the serdes. Some modes required a different patch
sequence than the one currently used.

Signed-off-by: Damien Dejean <dam.dejean@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/19834
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Damien Dejean 2025-08-20 18:07:37 +02:00 committed by Hauke Mehrtens
parent a43330799b
commit 6bb1b7cbbf
1 changed files with 30 additions and 16 deletions
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46
target/linux/realtek/files-6.12/drivers/net/phy/rtl83xx-phy.c
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@ -2615,7 +2615,7 @@ static void rtl9300_phy_enable_10g_1g(int sds_num)
}
static int rtl9300_sds_10g_idle(int sds_num);
static void rtl9300_serdes_patch(int sds_num);
static void rtsds_930x_patch_serdes(int sds, phy_interface_t mode);
#define RTL930X_MAC_FORCE_MODE_CTRL (0xCA1C)
int rtl9300_serdes_setup(int port, int sds_num, phy_interface_t phy_mode)
@ -2626,7 +2626,7 @@ int rtl9300_serdes_setup(int port, int sds_num, phy_interface_t phy_mode)
rtl9300_sds_rst(sds_num, RTL930X_SDS_OFF);
/* Apply serdes patches */
rtl9300_serdes_patch(sds_num);
rtsds_930x_patch_serdes(sds_num, phy_mode);
/* Maybe use dal_longan_sds_init */
@ -2697,7 +2697,7 @@ typedef struct {
u16 data;
} sds_config;
sds_config rtl9300_a_sds_10gr_lane0[] =
static const sds_config rtsds_930x_cfg_10gr_even[] =
{
/* 1G */
{0x00, 0x0E, 0x3053}, {0x01, 0x14, 0x0100}, {0x21, 0x03, 0x8206},
@ -2745,7 +2745,7 @@ sds_config rtl9300_a_sds_10gr_lane0[] =
{0x2F, 0x19, 0x4902}, {0x2F, 0x1D, 0x76E1},
};
sds_config rtl9300_a_sds_10gr_lane1[] =
static const sds_config rtsds_930x_cfg_10gr_odd[] =
{
/* 1G */
{0x00, 0x0E, 0x3053}, {0x01, 0x14, 0x0100}, {0x21, 0x03, 0x8206},
@ -2788,20 +2788,34 @@ sds_config rtl9300_a_sds_10gr_lane1[] =
{0x2B, 0x14, 0x3108}, {0x2D, 0x13, 0x3C87}, {0x2D, 0x14, 0x1808},
};
static void rtl9300_serdes_patch(int sds_num)
static void rtsds_930x_patch_serdes(int sds, phy_interface_t mode)
{
if (sds_num % 2) {
for (int i = 0; i < sizeof(rtl9300_a_sds_10gr_lane1) / sizeof(sds_config); ++i) {
rtmdio_930x_write_sds_phy(sds_num, rtl9300_a_sds_10gr_lane1[i].page,
rtl9300_a_sds_10gr_lane1[i].reg,
rtl9300_a_sds_10gr_lane1[i].data);
}
} else {
for (int i = 0; i < sizeof(rtl9300_a_sds_10gr_lane0) / sizeof(sds_config); ++i) {
rtmdio_930x_write_sds_phy(sds_num, rtl9300_a_sds_10gr_lane0[i].page,
rtl9300_a_sds_10gr_lane0[i].reg,
rtl9300_a_sds_10gr_lane0[i].data);
const bool even_sds = ((sds & 1) == 0);
const sds_config *config;
size_t count;
switch (mode) {
case PHY_INTERFACE_MODE_1000BASEX:
case PHY_INTERFACE_MODE_SGMII:
case PHY_INTERFACE_MODE_10GBASER:
if (even_sds) {
config = rtsds_930x_cfg_10gr_even;
count = ARRAY_SIZE(rtsds_930x_cfg_10gr_even);
} else {
config = rtsds_930x_cfg_10gr_odd;
count = ARRAY_SIZE(rtsds_930x_cfg_10gr_odd);
}
break;
default:
pr_warn("%s: unsupported mode %s on serdes %d\n", __func__, phy_modes(mode), sds);
return;
}
for (size_t i = 0; i < count; ++i) {
rtmdio_930x_write_sds_phy(sds, config[i].page,
config[i].reg,
config[i].data);
}
}