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author | Biju Das <biju.das.jz@bp.renesas.com> | 2022-09-14 20:26:04 +0100 |
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committer | Jakub Kicinski <kuba@kernel.org> | 2022-09-20 08:39:46 -0700 |
commit | 1089877ada8d2da5f173922f1061ccfe721ebf56 (patch) | |
tree | ae384b5f3c897a1b5b260178a9ea83b22d5e2dad /drivers/net/ethernet/renesas | |
parent | a4abfa627c3865c37e036bccb681619a50d3d93c (diff) | |
download | linux-1089877ada8d2da5f173922f1061ccfe721ebf56.tar.gz linux-1089877ada8d2da5f173922f1061ccfe721ebf56.tar.bz2 linux-1089877ada8d2da5f173922f1061ccfe721ebf56.zip |
ravb: Add RZ/G2L MII interface support
EMAC IP found on RZ/G2L Gb ethernet supports MII interface.
This patch adds support for selecting MII interface mode.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://lore.kernel.org/r/20220914192604.265859-1-biju.das.jz@bp.renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/renesas')
-rw-r--r-- | drivers/net/ethernet/renesas/ravb.h | 8 | ||||
-rw-r--r-- | drivers/net/ethernet/renesas/ravb_main.c | 8 |
2 files changed, 15 insertions, 1 deletions
diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h index b980bce763d3..e0f8276cffed 100644 --- a/drivers/net/ethernet/renesas/ravb.h +++ b/drivers/net/ethernet/renesas/ravb.h @@ -189,6 +189,7 @@ enum ravb_reg { PSR = 0x0528, PIPR = 0x052c, CXR31 = 0x0530, /* RZ/G2L only */ + CXR35 = 0x0540, /* RZ/G2L only */ MPR = 0x0558, PFTCR = 0x055c, PFRCR = 0x0560, @@ -965,6 +966,13 @@ enum CXR31_BIT { CXR31_SEL_LINK1 = 0x00000008, }; +enum CXR35_BIT { + CXR35_SEL_XMII = 0x00000003, + CXR35_SEL_XMII_RGMII = 0x00000000, + CXR35_SEL_XMII_MII = 0x00000002, + CXR35_HALFCYC_CLKSW = 0xffff0000, +}; + enum CSR0_BIT { CSR0_TPE = 0x00000010, CSR0_RPE = 0x00000020, diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c index d013cc1c8a0a..a550ffec9000 100644 --- a/drivers/net/ethernet/renesas/ravb_main.c +++ b/drivers/net/ethernet/renesas/ravb_main.c @@ -540,7 +540,13 @@ static void ravb_emac_init_gbeth(struct net_device *ndev) /* E-MAC interrupt enable register */ ravb_write(ndev, ECSIPR_ICDIP, ECSIPR); - ravb_modify(ndev, CXR31, CXR31_SEL_LINK0 | CXR31_SEL_LINK1, CXR31_SEL_LINK0); + if (priv->phy_interface == PHY_INTERFACE_MODE_MII) { + ravb_modify(ndev, CXR31, CXR31_SEL_LINK0 | CXR31_SEL_LINK1, 0); + ravb_write(ndev, (1000 << 16) | CXR35_SEL_XMII_MII, CXR35); + } else { + ravb_modify(ndev, CXR31, CXR31_SEL_LINK0 | CXR31_SEL_LINK1, + CXR31_SEL_LINK0); + } } static void ravb_emac_init_rcar(struct net_device *ndev) |