realtek: pcs: rtl931x: use regmap for register access calls
authorJonas Jelonek <[email protected]>
Thu, 16 Oct 2025 16:51:23 +0000 (16:51 +0000)
committerHauke Mehrtens <[email protected]>
Sun, 19 Oct 2025 21:49:56 +0000 (23:49 +0200)
Replaces the "old" way of accessing registers using the macros
sw_r32/sw_w32 from mach-rtl83xx.h. The "new" way to access register is
through the regmap API.

Signed-off-by: Jonas Jelonek <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/20369
Signed-off-by: Hauke Mehrtens <[email protected]>
target/linux/realtek/files-6.12/drivers/net/pcs/pcs-rtl-otto.c

index 9e6768706b057bb300a1d97ae198784238b705f2..a0340f9dc89226b011b84c1509bc8a87991bc507 100644 (file)
@@ -10,8 +10,6 @@
 #include <linux/phylink.h>
 #include <linux/regmap.h>
 
-#include <asm/mach-rtl838x/mach-rtl83xx.h>
-
 #define RTPCS_PORT_CNT                         57
 
 #define RTPCS_SPEED_10                         0
@@ -54,6 +52,9 @@
 
 #define RTPCS_93XX_MAC_LINK_SPD_BITS           4
 
+#define RTL93XX_MODEL_NAME_INFO                        (0x0004)
+#define RTL93XX_CHIP_INFO                      (0x0008)
+
 /* Registers of the internal SerDes of the 9310 */
 #define RTL931X_SERDES_MODE_CTRL               (0x13cc)
 #define RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR   (0x13F4)
@@ -177,23 +178,29 @@ static struct rtpcs_link *rtpcs_phylink_pcs_to_link(struct phylink_pcs *pcs)
 
 /* RTL931X */
 
-static void rtpcs_931x_sds_reset(u32 sds)
+static void rtpcs_931x_sds_reset(struct rtpcs_ctrl *ctrl, u32 sds)
 {
        u32 o, v, o_mode;
        int shift = ((sds & 0x3) << 3);
 
        /* TODO: We need to lock this! */
 
-       o = sw_r32(RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR);
+       regmap_read(ctrl->map, RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR, &o);
        v = o | BIT(sds);
-       sw_w32(v, RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR);
+       regmap_write(ctrl->map, RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR, v);
 
-       o_mode = sw_r32(RTL931X_SERDES_MODE_CTRL + 4 * (sds >> 2));
+       regmap_read(ctrl->map, RTL931X_SERDES_MODE_CTRL + 4 * (sds >> 2), &o_mode);
        v = BIT(7) | 0x1F;
-       sw_w32_mask(0xff << shift, v << shift, RTL931X_SERDES_MODE_CTRL + 4 * (sds >> 2));
-       sw_w32(o_mode, RTL931X_SERDES_MODE_CTRL + 4 * (sds >> 2));
+       regmap_write_bits(ctrl->map, RTL931X_SERDES_MODE_CTRL + 4 * (sds >> 2),
+                         0xff << shift, v << shift);
+       regmap_write(ctrl->map, RTL931X_SERDES_MODE_CTRL + 4 * (sds >> 2), o_mode);
+
+       regmap_write(ctrl->map, RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR, o);
+}
 
-       sw_w32(o, RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR);
+static void rtpcs_931x_sds_disable(struct rtpcs_ctrl *ctrl, u32 sds)
+{
+       regmap_write(ctrl->map, RTL931X_SERDES_MODE_CTRL + (sds >> 2) * 4, 0x9f);
 }
 
 static void rtpcs_931x_sds_symerr_clear(struct rtpcs_ctrl *ctrl, u32 sds,
@@ -244,8 +251,7 @@ static void rtpcs_931x_sds_fiber_mode_set(struct rtpcs_ctrl *ctrl, u32 sds,
        /* clear symbol error count before changing mode */
        rtpcs_931x_sds_symerr_clear(ctrl, sds, mode);
 
-       val = 0x9F;
-       sw_w32(val, RTL931X_SERDES_MODE_CTRL + 4 * (sds >> 2));
+       rtpcs_931x_sds_disable(ctrl, sds);
 
        switch (mode) {
        case PHY_INTERFACE_MODE_SGMII:
@@ -411,16 +417,8 @@ static void rtpcs_931x_sds_rx_reset(struct rtpcs_ctrl *ctrl, u32 sds)
        mdelay(50);
 }
 
-__attribute__((unused))
-static void rtpcs_931x_sds_disable(u32 sds)
-{
-       u32 v = 0x1f;
-
-       v |= BIT(7);
-       sw_w32(v, RTL931X_SERDES_MODE_CTRL + (sds >> 2) * 4);
-}
-
-static void rtpcs_931x_sds_mii_mode_set(u32 sds, phy_interface_t mode)
+static void rtpcs_931x_sds_mii_mode_set(struct rtpcs_ctrl *ctrl, u32 sds,
+                                       phy_interface_t mode)
 {
        u32 val;
 
@@ -444,7 +442,7 @@ static void rtpcs_931x_sds_mii_mode_set(u32 sds, phy_interface_t mode)
 
        val |= (1 << 7);
 
-       sw_w32(val, RTL931X_SERDES_MODE_CTRL + 4 * (sds >> 2));
+       regmap_write(ctrl->map, RTL931X_SERDES_MODE_CTRL + 4 * (sds >> 2), val);
 }
 
 static int rtpcs_931x_sds_cmu_band_set(struct rtpcs_ctrl *ctrl, int sds,
@@ -467,7 +465,7 @@ static int rtpcs_931x_sds_cmu_band_set(struct rtpcs_ctrl *ctrl, int sds,
 
        rtpcs_sds_write_bits(ctrl, sds, page, 0x7, 4, 0, band);
 
-       rtpcs_931x_sds_reset(sds);
+       rtpcs_931x_sds_reset(ctrl, sds);
 
        return 0;
 }
@@ -573,7 +571,7 @@ static int rtpcs_931x_setup_serdes(struct rtpcs_ctrl *ctrl, int sds,
        pr_info("%s XSG page 0x0 0xe %08x\n", __func__, rtpcs_sds_read(ctrl, sds, 0x100, 0xe));
        pr_info("%s XSG2 page 0x0 0xe %08x\n", __func__, rtpcs_sds_read(ctrl, sds, 0x200, 0xe));
 
-       model_info = sw_r32(RTL93XX_MODEL_NAME_INFO);
+       regmap_read(ctrl->map, RTL93XX_MODEL_NAME_INFO, &model_info);
        if ((model_info >> 4) & 0x1) {
                pr_info("detected chiptype 1\n");
                chiptype = 1;
@@ -584,10 +582,10 @@ static int rtpcs_931x_setup_serdes(struct rtpcs_ctrl *ctrl, int sds,
        pr_info("%s: 2.5gbit %08X", __func__,
                rtpcs_sds_read(ctrl, sds, 0x101, 0x14));
 
-       pr_info("%s: RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR 0x%08X\n", __func__, sw_r32(RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR));
-       ori = sw_r32(RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR);
+       regmap_read(ctrl->map, RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR, &ori);
+       pr_info("%s: RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR 0x%08X\n", __func__, ori);
        val = ori | (1 << sds);
-       sw_w32(val, RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR);
+       regmap_write(ctrl->map, RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR, val);
 
        /* this was in rtl931x_phylink_mac_config in dsa/rtl83xx/dsa.c before */
        band = rtpcs_931x_sds_cmu_band_get(ctrl, sds, mode);
@@ -708,8 +706,8 @@ static int rtpcs_931x_setup_serdes(struct rtpcs_ctrl *ctrl, int sds,
                        rtpcs_sds_write(ctrl, sds, 0x2E, 0x1, board_sds_tx_type1[sds - 2]);
                else {
                        val = 0xa0000;
-                       sw_w32(val, RTL93XX_CHIP_INFO);
-                       val = sw_r32(RTL93XX_CHIP_INFO);
+                       regmap_write(ctrl->map, RTL93XX_CHIP_INFO, val);
+                       regmap_read(ctrl->map, RTL93XX_CHIP_INFO, &val);
                        if (val & BIT(28)) /* consider 9311 etc. RTL9313_CHIP_ID == HWP_CHIP_ID(unit)) */
                        {
                                rtpcs_sds_write(ctrl, sds, 0x2E, 0x1, board_sds_tx2[sds - 2]);
@@ -717,20 +715,21 @@ static int rtpcs_931x_setup_serdes(struct rtpcs_ctrl *ctrl, int sds,
                                rtpcs_sds_write(ctrl, sds, 0x2E, 0x1, board_sds_tx[sds - 2]);
                        }
                        val = 0;
-                       sw_w32(val, RTL93XX_CHIP_INFO);
+                       regmap_write(ctrl->map, RTL93XX_CHIP_INFO, val);
                }
        }
 
        val = ori & ~BIT(sds);
-       sw_w32(val, RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR);
-       pr_debug("%s: RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR 0x%08X\n", __func__, sw_r32(RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR));
+       regmap_write(ctrl->map, RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR, val);
+       regmap_read(ctrl->map, RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR, &val);
+       pr_debug("%s: RTL931X_PS_SERDES_OFF_MODE_CTRL_ADDR 0x%08X\n", __func__, val);
 
        if (mode == PHY_INTERFACE_MODE_XGMII ||
            mode == PHY_INTERFACE_MODE_QSGMII ||
            mode == PHY_INTERFACE_MODE_SGMII ||
            mode == PHY_INTERFACE_MODE_USXGMII) {
                if (mode == PHY_INTERFACE_MODE_XGMII)
-                       rtpcs_931x_sds_mii_mode_set(sds, mode);
+                       rtpcs_931x_sds_mii_mode_set(ctrl, sds, mode);
                else
                        rtpcs_931x_sds_fiber_mode_set(ctrl, sds, mode);
        }