From: Doug Berger Date: Fri, 10 Mar 2017 00:58:45 +0000 (-0800) Subject: net: bcmgenet: reserved phy revisions must be checked first X-Git-Tag: v4.14-rc1~1290^2~26^2~5 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=eca4bad73409aedc6ff22f823c18b67a4f08c851;p=platform%2Fkernel%2Flinux-rpi3.git net: bcmgenet: reserved phy revisions must be checked first The reserved gphy_rev value of 0x01ff must be tested before the old or new scheme for GPHY major versioning are tested, otherwise it will be treated as 0xff00 according to the old scheme. Fixes: b04a2f5b9ff5 ("net: bcmgenet: add support for new GENET PHY revision scheme") Signed-off-by: Doug Berger Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index 01a172d..99f8d90 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -3226,6 +3226,12 @@ static void bcmgenet_set_hw_params(struct bcmgenet_priv *priv) */ gphy_rev = reg & 0xffff; + /* This is reserved so should require special treatment */ + if (gphy_rev == 0 || gphy_rev == 0x01ff) { + pr_warn("Invalid GPHY revision detected: 0x%04x\n", gphy_rev); + return; + } + /* This is the good old scheme, just GPHY major, no minor nor patch */ if ((gphy_rev & 0xf0) != 0) priv->gphy_rev = gphy_rev << 8; @@ -3234,12 +3240,6 @@ static void bcmgenet_set_hw_params(struct bcmgenet_priv *priv) else if ((gphy_rev & 0xff00) != 0) priv->gphy_rev = gphy_rev; - /* This is reserved so should require special treatment */ - else if (gphy_rev == 0 || gphy_rev == 0x01ff) { - pr_warn("Invalid GPHY revision detected: 0x%04x\n", gphy_rev); - return; - } - #ifdef CONFIG_PHYS_ADDR_T_64BIT if (!(params->flags & GENET_HAS_40BITS)) pr_warn("GENET does not support 40-bits PA\n");