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net: dsa: b53: prevent FAST_AGE access on BCM5325

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BCM5325 doesn't implement FAST_AGE registers so we should avoid reading or
writing them.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20250614080000.1884236-7-noltari@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Álvaro Fernández Rojas 2025-06-14 09:59:52 +02:00 committed by Jakub Kicinski
parent c45655386e
commit 9b6c767c31
1 changed files with 9 additions and 0 deletions
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9
drivers/net/dsa/b53/b53_common.c
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@ -487,6 +487,9 @@ static int b53_flush_arl(struct b53_device *dev, u8 mask)
{
unsigned int i;
if (is5325(dev))
return 0;
b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL,
FAST_AGE_DONE | FAST_AGE_DYNAMIC | mask);
@ -511,6 +514,9 @@ static int b53_flush_arl(struct b53_device *dev, u8 mask)
static int b53_fast_age_port(struct b53_device *dev, int port)
{
if (is5325(dev))
return 0;
b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_PORT_CTRL, port);
return b53_flush_arl(dev, FAST_AGE_PORT);
@ -518,6 +524,9 @@ static int b53_fast_age_port(struct b53_device *dev, int port)
static int b53_fast_age_vlan(struct b53_device *dev, u16 vid)
{
if (is5325(dev))
return 0;
b53_write16(dev, B53_CTRL_PAGE, B53_FAST_AGE_VID_CTRL, vid);
return b53_flush_arl(dev, FAST_AGE_VLAN);