r8152: Add firmware upload capability for RTL8157/RTL8159

The RTL8159 (RTL_VER_17) requires firmware for its PHY in order to work
at connection speeds > 5GBit. Add support for uploading firmware for
the PHY using the existing rtl8152_apply_firmware() function
in r8157_hw_phy_cfg() and set up the correct names for the firmware
files.

This also adds support for uploading firmware for the RTL8157
(RTL_VER_16) PHY, for which firmware is however not strictly necessary
to work. Still, this allows to upload newer versions of the firmware used
by this chip, e.g. to improve interoperability.

If no firmware is found, both the RTL8157 and the RTL8159 will continue
to work.

Signed-off-by: Birger Koblitz <mail@birger-koblitz.de>
Tested-by: Aleksander Jan Bajkowski <olek2@wp.pl>
Link: https://patch.msgid.link/20260505-rtl8159_net_next-v4-3-1a648a9c4d8d@birger-koblitz.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 1e7f20348ac6def85106f1e8bab93a377980c77d..d281ad5ed78eded01876c6064aed95e1f78cfc05 100644 (file)
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -4663,10 +4663,11 @@ static bool rtl8152_is_fw_phy_speed_up_ok(struct r8152 *tp, struct fw_phy_speed_
        case RTL_VER_11:
        case RTL_VER_12:
        case RTL_VER_14:
-       case RTL_VER_16:
                goto out;
        case RTL_VER_13:
        case RTL_VER_15:
+       case RTL_VER_16:
+       case RTL_VER_17:
        default:
                break;
        }
@@ -7982,12 +7983,14 @@ static void r8157_hw_phy_cfg(struct r8152 *tp)
        data = r8153_phy_status(tp, 0);
        switch (data) {
        case PHY_STAT_EXT_INIT:
+               rtl8152_apply_firmware(tp, true);
                ocp_reg_clr_bits(tp, 0xa466, BIT(0));
                ocp_reg_clr_bits(tp, 0xa468, BIT(3) | BIT(1));
                break;
        case PHY_STAT_LAN_ON:
        case PHY_STAT_PWRDN:
        default:
+               rtl8152_apply_firmware(tp, false);
                break;
        }
 
@@ -9926,6 +9929,8 @@ static int rtl_ops_init(struct r8152 *tp)
 #define FIRMWARE_8153C_1       "rtl_nic/rtl8153c-1.fw"
 #define FIRMWARE_8156A_2       "rtl_nic/rtl8156a-2.fw"
 #define FIRMWARE_8156B_2       "rtl_nic/rtl8156b-2.fw"
+#define FIRMWARE_8157_1                "rtl_nic/rtl8157-1.fw"
+#define FIRMWARE_8159_1                "rtl_nic/rtl8159-1.fw"
 
 MODULE_FIRMWARE(FIRMWARE_8153A_2);
 MODULE_FIRMWARE(FIRMWARE_8153A_3);
@@ -9934,6 +9939,8 @@ MODULE_FIRMWARE(FIRMWARE_8153B_2);
 MODULE_FIRMWARE(FIRMWARE_8153C_1);
 MODULE_FIRMWARE(FIRMWARE_8156A_2);
 MODULE_FIRMWARE(FIRMWARE_8156B_2);
+MODULE_FIRMWARE(FIRMWARE_8157_1);
+MODULE_FIRMWARE(FIRMWARE_8159_1);
 
 static int rtl_fw_init(struct r8152 *tp)
 {
@@ -9972,6 +9979,12 @@ static int rtl_fw_init(struct r8152 *tp)
                rtl_fw->pre_fw          = r8153b_pre_firmware_1;
                rtl_fw->post_fw         = r8153c_post_firmware_1;
                break;
+       case RTL_VER_16:
+               rtl_fw->fw_name         = FIRMWARE_8157_1;
+               break;
+       case RTL_VER_17:
+               rtl_fw->fw_name         = FIRMWARE_8159_1;
+               break;
        default:
                break;
        }