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This is a backport of Ansuel Smith's "Multiple improvement to qca8k stability" series. The QCA8337 switch is available on multiple platforms including ipq806x, ath79 and bcm53xx. Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com> Signed-off-by: Matthew Hagan <mnhagan88@gmail.com>
40 lines
1.2 KiB
Diff
40 lines
1.2 KiB
Diff
From 617960d72e93de0f3fa52407e2d39e8c43e73b0a Mon Sep 17 00:00:00 2001
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From: Ansuel Smith <ansuelsmth@gmail.com>
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Date: Fri, 14 May 2021 23:00:09 +0200
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Subject: [PATCH] net: dsa: qca8k: enlarge mdio delay and timeout
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The witch require some extra delay after setting page or the next
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read/write can use still use the old page. Add a delay after the
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set_page function to address this as it's done in QSDK legacy driver.
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Some timeouts were notice with VLAN and phy function, enlarge the
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mdio busy wait timeout to fix these problems.
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Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/dsa/qca8k.c | 1 +
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drivers/net/dsa/qca8k.h | 2 +-
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2 files changed, 2 insertions(+), 1 deletion(-)
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--- a/drivers/net/dsa/qca8k.c
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+++ b/drivers/net/dsa/qca8k.c
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@@ -143,6 +143,7 @@ qca8k_set_page(struct mii_bus *bus, u16
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}
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qca8k_current_page = page;
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+ usleep_range(1000, 2000);
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return 0;
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}
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--- a/drivers/net/dsa/qca8k.h
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+++ b/drivers/net/dsa/qca8k.h
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@@ -20,7 +20,7 @@
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#define PHY_ID_QCA8337 0x004dd036
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#define QCA8K_ID_QCA8337 0x13
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-#define QCA8K_BUSY_WAIT_TIMEOUT 20
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+#define QCA8K_BUSY_WAIT_TIMEOUT 2000
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#define QCA8K_NUM_FDB_RECORDS 2048
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