netdev - [PATCH v4] net: macb: Add default usrio config to default gem config

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Date:   Wed,  3 Mar 2021 11:55:49 -0800
From:   Atish Patra <atish.patra@....com>
To:     netdev@...r.kernel.org
Cc:     Atish Patra <atish.patra@....com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, Andrew Lunn <andrew@...n.ch>
Subject: [PATCH v4] net: macb: Add default usrio config to default gem config

There is no usrio config defined for default gem config leading to
a kernel panic devices that don't define a data. This issue can be
reprdouced with microchip polar fire soc where compatible string
is defined as "cdns,macb".

Fixes: edac63861db7 ("add userio bits as platform configuration")

Signed-off-by: Atish Patra <atish.patra@....com>
Acked-by: Nicolas Ferre <nicolas.ferre@...rochip.com>
---
Changes from v3->v4:
1. Moved the macb_default_usrio out of OF_FDT to make buildbots happy.
Changes from v2->v3:
1. Fixed the typo in fixes tag.
Changes from v1->v2:
1. Fixed the fixes tag.
---
 drivers/net/ethernet/cadence/macb_main.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 472bf8f220bc..15362d016a87 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -3954,6 +3954,13 @@ static int macb_init(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct macb_usrio_config macb_default_usrio = {
+	.mii = MACB_BIT(MII),
+	.rmii = MACB_BIT(RMII),
+	.rgmii = GEM_BIT(RGMII),
+	.refclk = MACB_BIT(CLKEN),
+};
+
 #if defined(CONFIG_OF)
 /* 1518 rounded up */
 #define AT91ETHER_MAX_RBUFF_SZ	0x600
@@ -4439,13 +4446,6 @@ static int fu540_c000_init(struct platform_device *pdev)
 	return macb_init(pdev);
 }
 
-static const struct macb_usrio_config macb_default_usrio = {
-	.mii = MACB_BIT(MII),
-	.rmii = MACB_BIT(RMII),
-	.rgmii = GEM_BIT(RGMII),
-	.refclk = MACB_BIT(CLKEN),
-};
-
 static const struct macb_usrio_config sama7g5_usrio = {
 	.mii = 0,
 	.rmii = 1,
@@ -4594,6 +4594,7 @@ static const struct macb_config default_gem_config = {
 	.dma_burst_length = 16,
 	.clk_init = macb_clk_init,
 	.init = macb_init,
+	.usrio = &macb_default_usrio,
 	.jumbo_max_len = 10240,
 };
 
-- 
2.25.1