forked from Openwrt-EcoNet/openwrt
b0c8780604
Update BCM5325 patches to the latest version sent to netdev. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
54 lines
1.7 KiB
Diff
54 lines
1.7 KiB
Diff
From 4368d82cccd1bdd9339a4aac1ce78873ef0d0031 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= <noltari@gmail.com>
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Date: Sat, 31 May 2025 11:20:13 +0200
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Subject: [RFC PATCH net-next v2 10/10] net: dsa: b53: ensure BCM5325 PHYs are
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enabled
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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According to the datasheet, BCM5325 uses B53_PD_MODE_CTRL_25 register to
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disable clocking to individual PHYs.
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Only ports 1-4 can be enabled or disabled and the datasheet is explicit
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about not toggling BIT(0) since it disables the PLL power and the switch.
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Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
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---
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drivers/net/dsa/b53/b53_common.c | 13 +++++++++++++
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drivers/net/dsa/b53/b53_regs.h | 2 ++
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2 files changed, 15 insertions(+)
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--- a/drivers/net/dsa/b53/b53_common.c
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+++ b/drivers/net/dsa/b53/b53_common.c
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@@ -660,6 +660,19 @@ int b53_setup_port(struct dsa_switch *ds
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if (dsa_is_user_port(ds, port))
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b53_set_eap_mode(dev, port, EAP_MODE_SIMPLIFIED);
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+ if (is5325(dev) &&
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+ (port >= B53_PD_MODE_PORT_MIN) &&
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+ (port <= B53_PD_MODE_PORT_MAX)) {
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+ u8 reg;
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+
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+ b53_read8(dev, B53_CTRL_PAGE, B53_PD_MODE_CTRL_25, ®);
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+ if (dsa_is_unused_port(ds, port))
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+ reg |= BIT(port);
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+ else
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+ reg &= ~BIT(port);
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+ b53_write8(dev, B53_CTRL_PAGE, B53_PD_MODE_CTRL_25, reg);
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+ }
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+
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return 0;
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}
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EXPORT_SYMBOL(b53_setup_port);
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--- a/drivers/net/dsa/b53/b53_regs.h
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+++ b/drivers/net/dsa/b53/b53_regs.h
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@@ -108,6 +108,8 @@
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/* Power-down mode control */
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#define B53_PD_MODE_CTRL_25 0x0f
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+#define B53_PD_MODE_PORT_MIN 1
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+#define B53_PD_MODE_PORT_MAX 4
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/* IP Multicast control (8 bit) */
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#define B53_IP_MULTICAST_CTRL 0x21
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