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@@ -0,0 +1,20 @@
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+diff --git a/board/sunxi/gmac.c b/board/sunxi/gmac.c
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+index e7ff952..f58c963 100644
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+--- a/board/sunxi/gmac.c
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++++ b/board/sunxi/gmac.c
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+@@ -24,6 +24,15 @@ int sunxi_gmac_initialize(bd_t *bis)
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+ CCM_GMAC_CTRL_GPIT_MII);
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+ #endif
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+
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++ /*
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++ * HdG: this is necessary to get GMAC to work reliable on the
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++ * Bananapi. We don't know what these undocumented bits do, so this
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++ * is a Bananapi specific hack for now.
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++ */
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++#ifdef CONFIG_BANANAPI
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++ setbits_le32(&ccm->gmac_clk_cfg, 0x3 << 10);
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++#endif
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++
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+ /* Configure pin mux settings for GMAC */
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+ for (pin = SUNXI_GPA(0); pin <= SUNXI_GPA(16); pin++) {
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+ #ifdef CONFIG_RGMII
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Zoltan Herpai