openwrt/target/linux/generic/pending-5.15/775-net-dsa-b53-add-BCM63268-RGMII-configuration.patch
Álvaro Fernández Rojas fff07085fb kernel: add pending bmips patches
Add patches sent upstream for bmips and b53 and remove downstream ones.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2023-03-20 19:51:53 +01:00

118 lines
5.4 KiB
Diff

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From: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= <noltari@gmail.com>
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Subject: [PATCH 4/4] net: dsa: b53: add BCM63268 RGMII configuration
Date: Mon, 20 Mar 2023 16:50:24 +0100
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BCM63268 requires special RGMII configuration to work.
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
---
drivers/net/dsa/b53/b53_common.c | 6 +++++-
drivers/net/dsa/b53/b53_regs.h | 1 +
2 files changed, 6 insertions(+), 1 deletion(-)
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -1240,8 +1240,12 @@ static void b53_adjust_63xx_rgmii(struct
break;
}
- if (port != dev->imp_port)
+ if (port != dev->imp_port) {
+ if (is63268(dev))
+ rgmii_ctrl |= RGMII_CTRL_MII_OVERRIDE;
+
rgmii_ctrl |= RGMII_CTRL_ENABLE_GMII;
+ }
b53_write8(dev, B53_CTRL_PAGE, off, rgmii_ctrl);
--- a/drivers/net/dsa/b53/b53_regs.h
+++ b/drivers/net/dsa/b53/b53_regs.h
@@ -138,6 +138,7 @@
#define B53_RGMII_CTRL_IMP 0x60
#define RGMII_CTRL_ENABLE_GMII BIT(7)
+#define RGMII_CTRL_MII_OVERRIDE BIT(6)
#define RGMII_CTRL_TIMING_SEL BIT(2)
#define RGMII_CTRL_DLL_RXC BIT(1)
#define RGMII_CTRL_DLL_TXC BIT(0)