| From | Álvaro Fernández Rojas <> | 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(-)
diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c index 6e212f6f1cb9..d0a22c8a55c9 100644 --- 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 dsa_switch *ds, int port, 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); diff --git a/drivers/net/dsa/b53/b53_regs.h b/drivers/net/dsa/b53/b53_regs.h index b2c539a42154..bfbcb66bef66 100644 --- 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) -- 2.30.2
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