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70 lines
2.3 KiB
Diff
70 lines
2.3 KiB
Diff
--- a/drivers/net/ethernet/mediatek/esw_rt3050.c
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+++ b/drivers/net/ethernet/mediatek/esw_rt3050.c
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@@ -221,6 +221,8 @@ struct rt305x_esw {
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unsigned char port_map;
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unsigned char port_disable;
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+ unsigned int reg_initval_fct2;
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+ unsigned int reg_initval_fpa2;
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unsigned int reg_led_polarity;
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struct switch_dev swdev;
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@@ -452,7 +454,10 @@ static void esw_hw_init(struct rt305x_es
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(RT305X_ESW_PORTS_NOCPU << RT305X_ESW_POC2_UNTAG_EN_S)),
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RT305X_ESW_REG_POC2);
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- esw_w32(esw, 0x0002500c, RT305X_ESW_REG_FCT2);
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+ if (esw->reg_initval_fct2)
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+ esw_w32(esw, esw->reg_initval_fct2, RT305X_ESW_REG_FCT2);
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+ else
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+ esw_w32(esw, 0x0002500c, RT305X_ESW_REG_FCT2);
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/* 300s aging timer, max packet len 1536, broadcast storm prevention
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* disabled, disable collision abort, mac xor48 hash, 10 packet back
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@@ -475,7 +480,10 @@ static void esw_hw_init(struct rt305x_es
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* port5: disabled
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* port6: enabled, gige, full-duplex, rx/tx-flow-control
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*/
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- esw_w32(esw, 0x3f502b28, RT305X_ESW_REG_FPA2);
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+ if (esw->reg_initval_fpa2)
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+ esw_w32(esw, esw->reg_initval_fpa2, RT305X_ESW_REG_FPA2);
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+ else
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+ esw_w32(esw, 0x3f502b28, RT305X_ESW_REG_FPA2);
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esw_w32(esw, 0x00000000, RT305X_ESW_REG_FPA);
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/* Force Link/Activity on ports */
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@@ -1361,6 +1369,14 @@ static int esw_probe(struct platform_dev
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if (port_disable)
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esw->port_disable = be32_to_cpu(*port_disable);
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+ reg_init = of_get_property(np, "ralink,fct2", NULL);
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+ if (reg_init)
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+ esw->reg_initval_fct2 = be32_to_cpu(*reg_init);
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+
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+ reg_init = of_get_property(np, "ralink,fpa2", NULL);
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+ if (reg_init)
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+ esw->reg_initval_fpa2 = be32_to_cpu(*reg_init);
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+
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reg_init = of_get_property(np, "mediatek,led_polarity", NULL);
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if (reg_init)
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esw->reg_led_polarity = be32_to_cpu(*reg_init);
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@@ -1386,6 +1402,18 @@ static int esw_probe(struct platform_dev
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esw_hw_init(esw);
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+ reg_init = of_get_property(np, "ralink,rgmii", NULL);
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+ if (reg_init && be32_to_cpu(*reg_init) == 1) {
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+ /*
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+ * External switch connected to RGMII interface.
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+ * Unregister the switch device after initialization.
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+ */
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+ dev_err(&pdev->dev, "RGMII mode, not exporting switch device.\n");
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+ unregister_switch(&esw->swdev);
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+ platform_set_drvdata(pdev, NULL);
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+ return -ENODEV;
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+ }
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+
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ret = devm_request_irq(&pdev->dev, esw->irq, esw_interrupt, 0, "esw",
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esw);
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