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@@ -629,6 +629,22 @@ __ag71xx_link_adjust(struct ag71xx *ag, bool update)
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ag71xx_wr(ag, AG71XX_REG_MAC_CFG2, cfg2);
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ag71xx_wr(ag, AG71XX_REG_FIFO_CFG5, fifo5);
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ag71xx_wr(ag, AG71XX_REG_MAC_IFCTL, ifctl);
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+
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+ if (pdata->disable_inline_checksum_engine) {
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+ /*
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+ * The rx ring buffer can stall on small packets on QCA953x and
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+ * QCA956x. Disabling the inline checksum engine fixes the stall.
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+ * The wr, rr functions cannot be used since this hidden register
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+ * is outside of the normal ag71xx register block.
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+ */
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+ void __iomem *dam = ioremap_nocache(0xb90001bc, 0x4);
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+ if (dam) {
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+ __raw_writel(__raw_readl(dam) & ~BIT(27), dam);
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+ (void)__raw_readl(dam);
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+ iounmap(dam);
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+ }
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+ }
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+
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ag71xx_hw_start(ag);
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netif_carrier_on(ag->dev);
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