| Message ID | 20191114162838.7150-8-alexandru.marginean@nxp.com |
|---|---|
| State | Accepted |
| Commit | 05f86070c0722015520ceb172b22070db5d0aa35 |
| Delegated to: | Joe Hershberger |
| Headers | show |
| Series | Add XFI, USXGMII net protocols, use them in Aquantia driver | expand |
On Thu, Nov 14, 2019 at 10:31 AM Alex Marginean <alexandru.marginean@nxp.com> wrote: > > Aquantia PHYs have a SMBus interface mostly used for debug. The addresses > on this interface are normally set up by PHY firmware, but depending on the > board they may end up not being unique. Add an optional DT property used > to change SMBus address if needed. > > Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
diff --git a/drivers/net/phy/aquantia.c b/drivers/net/phy/aquantia.c index 06532c51d5..151e0ee9e9 100644 --- a/drivers/net/phy/aquantia.c +++ b/drivers/net/phy/aquantia.c @@ -91,6 +91,9 @@ #define AQUANTIA_VND1_GSYSCFG_5G 3 #define AQUANTIA_VND1_GSYSCFG_10G 4 +#define AQUANTIA_VND1_SMBUS0 0xc485 +#define AQUANTIA_VND1_SMBUS1 0xc495 + /* addresses of memory segments in the phy */ #define DRAM_BASE_ADDR 0x3FFE0000 #define IRAM_BASE_ADDR 0x40000000 @@ -352,6 +355,18 @@ static int aquantia_dts_config(struct phy_device *phydev) phy_write(phydev, MDIO_MMD_PMAPMD, AQUANTIA_PMA_RX_VENDOR_P1, reg); } + if (!ofnode_read_u32(node, "smb-addr", &prop)) { + debug("smb-addr = %x\n", (int)prop); + /* + * there are two addresses here, normally just one bus would + * be in use so we're setting both regs using the same DT + * property. + */ + phy_write(phydev, MDIO_MMD_VEND1, AQUANTIA_VND1_SMBUS0, + (u16)(prop << 1)); + phy_write(phydev, MDIO_MMD_VEND1, AQUANTIA_VND1_SMBUS1, + (u16)(prop << 1)); + } #endif return 0;
Aquantia PHYs have a SMBus interface mostly used for debug. The addresses on this interface are normally set up by PHY firmware, but depending on the board they may end up not being unique. Add an optional DT property used to change SMBus address if needed. Signed-off-by: Alex Marginean <alexandru.marginean@nxp.com> --- drivers/net/phy/aquantia.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+)