From 45977e58ce65ed0459edc9a0466d9dfea09463f5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=C3=81lvaro=20Fern=C3=A1ndez=20Rojas?= Date: Thu, 23 Mar 2023 20:48:41 +0100 Subject: [PATCH] net: dsa: b53: mmap: add phy ops MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Implement phy_read16() and phy_write16() ops for B53 MMAP to avoid accessing B53_PORT_MII_PAGE registers which hangs the device. This access should be done through the MDIO Mux bus controller. Signed-off-by: Álvaro Fernández Rojas Acked-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/dsa/b53/b53_mmap.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) --- a/drivers/net/dsa/b53/b53_mmap.c +++ b/drivers/net/dsa/b53/b53_mmap.c @@ -216,6 +216,18 @@ static int b53_mmap_write64(struct b53_d return 0; } +static int b53_mmap_phy_read16(struct b53_device *dev, int addr, int reg, + u16 *value) +{ + return -EIO; +} + +static int b53_mmap_phy_write16(struct b53_device *dev, int addr, int reg, + u16 value) +{ + return -EIO; +} + static const struct b53_io_ops b53_mmap_ops = { .read8 = b53_mmap_read8, .read16 = b53_mmap_read16, @@ -227,6 +239,8 @@ static const struct b53_io_ops b53_mmap_ .write32 = b53_mmap_write32, .write48 = b53_mmap_write48, .write64 = b53_mmap_write64, + .phy_read16 = b53_mmap_phy_read16, + .phy_write16 = b53_mmap_phy_write16, }; static int b53_mmap_probe_of(struct platform_device *pdev,