From 687284483c15b569da25f4727b3449e1e1d0dc17 Mon Sep 17 00:00:00 2001
From: Chen-Yu Tsai <wens@csie.org>
Date: Fri, 22 Jul 2016 18:16:09 +0800
Subject: [PATCH] net: sun8i_emac: Do not configure AHB2 clock
The sun8i_emac driver erroneously configures the AHB2 clock when it
assumes it is configuring the AXI gates, which is not even documented
or ever appeared in either the WiP kernel driver or Allwinner's original
driver.
As a result, AHB2 clock mux is set to an invalid setting, making the
EPHY unusable.
Fixes: a29710c525ff ("net: Add EMAC driver for H3/A83T/A64 SoCs.")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
drivers/net/sun8i_emac.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/drivers/net/sun8i_emac.c b/drivers/net/sun8i_emac.c
index 4bed50d668..508fbfea19 100644
--- a/drivers/net/sun8i_emac.c
+++ b/drivers/net/sun8i_emac.c
@@ -599,9 +599,6 @@ static void sun8i_emac_board_setup(struct emac_eth_dev *priv)
/* Set clock gating for emac */
setbits_le32(&ccm->ahb_gate0, BIT(AHB_GATE_OFFSET_GMAC));
- /* Set EMAC clock */
- setbits_le32(&ccm->axi_gate, (BIT(1) | BIT(0)));
-
/* De-assert EMAC */
setbits_le32(&ccm->ahb_reset0_cfg, BIT(AHB_RESET_OFFSET_GMAC));
}
--
2.39.5