linux-kernel - [PATCH 4.2.y-ckt 106/305] net: mvneta: add configuration for MBUS windows access protection

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Date:	Fri, 15 Jan 2016 15:58:40 -0800
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Marcin Wojtas <mw@...ihalf.com>,
	"David S. Miller" <davem@...emloft.net>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 4.2.y-ckt 106/305] net: mvneta: add configuration for MBUS windows access protection

4.2.8-ckt2 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Marcin Wojtas <mw@...ihalf.com>

commit db6ba9a5371f173489df126739d0a1c2a50f347b upstream.

This commit adds missing configuration of MBUS windows access protection
in mvneta_conf_mbus_windows function - a dedicated variable for that
purpose remained there unused since v3.8 initial mvneta support. Because
of that the register contents were inherited from the bootloader.

Signed-off-by: Marcin Wojtas <mw@...ihalf.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@...e-electrons.com>

Fixes: c5aff18204da ("net: mvneta: driver for Marvell Armada 370/XP network
unit")
Signed-off-by: David S. Miller <davem@...emloft.net>

Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 drivers/net/ethernet/marvell/mvneta.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index 82f63e9..060af9b 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -61,6 +61,7 @@
 #define MVNETA_WIN_SIZE(w)                      (0x2204 + ((w) << 3))
 #define MVNETA_WIN_REMAP(w)                     (0x2280 + ((w) << 2))
 #define MVNETA_BASE_ADDR_ENABLE                 0x2290
+#define MVNETA_ACCESS_PROTECT_ENABLE            0x2294
 #define MVNETA_PORT_CONFIG                      0x2400
 #define      MVNETA_UNI_PROMISC_MODE            BIT(0)
 #define      MVNETA_DEF_RXQ(q)                  ((q) << 1)
@@ -2975,6 +2976,7 @@ static void mvneta_conf_mbus_windows(struct mvneta_port *pp,
 	}
 
 	mvreg_write(pp, MVNETA_BASE_ADDR_ENABLE, win_enable);
+	mvreg_write(pp, MVNETA_ACCESS_PROTECT_ENABLE, win_protect);
 }
 
 /* Power up the port */
-- 
1.9.1