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| author | Álvaro Fernández Rojas <noltari@gmail.com> | 2023-03-23 22:48:41 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-04-26 15:30:00 +0300 |
| commit | cda8141cf896ae8aecfea548f4714f20de79bccc (patch) | |
| tree | 49b9b860ae5f2451970f16844055693348a311ac | |
| parent | f4916c60ba4b027cc8fe88abd149d96448338a7d (diff) | |
| download | linux-cda8141cf896ae8aecfea548f4714f20de79bccc.tar.xz | |
net: dsa: b53: mmap: add phy ops
[ Upstream commit 45977e58ce65ed0459edc9a0466d9dfea09463f5 ]
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 <noltari@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/dsa/b53/b53_mmap.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/dsa/b53/b53_mmap.c b/drivers/net/dsa/b53/b53_mmap.c index 70887e0aece3..d9434ed9450d 100644 --- 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_device *dev, u8 page, u8 reg, 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_ops = { .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, |