diff options
Diffstat (limited to 'src/vendorcode/cavium/bdk/libbdk-hal/if/bdk-if-phy-marvell.c')
| -rw-r--r-- | src/vendorcode/cavium/bdk/libbdk-hal/if/bdk-if-phy-marvell.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/vendorcode/cavium/bdk/libbdk-hal/if/bdk-if-phy-marvell.c b/src/vendorcode/cavium/bdk/libbdk-hal/if/bdk-if-phy-marvell.c new file mode 100644 index 0000000000..e8f3a009dd --- /dev/null +++ b/src/vendorcode/cavium/bdk/libbdk-hal/if/bdk-if-phy-marvell.c @@ -0,0 +1,115 @@ +/***********************license start*********************************** +* Copyright (c) 2003-2016 Cavium Inc. (support@cavium.com). All rights +* reserved. +* +* +* Redistribution and use in source and binary forms, with or without +* modification, are permitted provided that the following conditions are +* met: +* +* * Redistributions of source code must retain the above copyright +* notice, this list of conditions and the following disclaimer. +* +* * Redistributions in binary form must reproduce the above +* copyright notice, this list of conditions and the following +* disclaimer in the documentation and/or other materials provided +* with the distribution. +* +* * Neither the name of Cavium Inc. nor the names of +* its contributors may be used to endorse or promote products +* derived from this software without specific prior written +* permission. +* +* This Software, including technical data, may be subject to U.S. export +* control laws, including the U.S. Export Administration Act and its +* associated regulations, and may be subject to export or import +* regulations in other countries. +* +* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS" +* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR +* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT +* TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY +* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT +* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES +* OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR +* PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, +* QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK +* ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU. +***********************license end**************************************/ +#include <bdk.h> +#include <libbdk-hal/bdk-mdio.h> +#include <libbdk-hal/bdk-qlm.h> +#include <libbdk-hal/if/bdk-if.h> + +/** + * Setup marvell PHYs + * This function sets up one port in a marvell 88E1512 in SGMII mode + */ +static void setup_marvell_phy(bdk_node_t node, int mdio_bus, int mdio_addr) +{ + int phy_status = 0; + + BDK_TRACE(PHY, "%s In SGMII mode for Marvell PHY 88E1512\n", __FUNCTION__); + /* Switch to Page 18 */ + phy_status = bdk_mdio_write(node, mdio_bus, mdio_addr, 22, 18); + if (phy_status < 0) + return; + + phy_status = bdk_mdio_read(node, mdio_bus, mdio_addr, 22); + if (phy_status < 0) + return; + + /* Change the Phy System mode from RGMII(default hw reset mode) to SGMII */ + phy_status = bdk_mdio_write(node, mdio_bus, mdio_addr, 20, 1); + if (phy_status < 0) + return; + + /* Requires a Software reset */ + phy_status = bdk_mdio_write(node, mdio_bus, mdio_addr, 20, 0x8001); + if (phy_status < 0) + return; + + phy_status = bdk_mdio_read(node, mdio_bus, mdio_addr, 20); + if (phy_status < 0) + return; + + /* Change the Page back to 0 */ + phy_status = bdk_mdio_write(node, mdio_bus, mdio_addr, 22, 0); + if (phy_status < 0) + return; + + phy_status = bdk_mdio_read(node, mdio_bus, mdio_addr, 22); + if (phy_status < 0) + return; + + phy_status = bdk_mdio_read(node, mdio_bus, mdio_addr, 17); + if (phy_status < 0) + return; +} + +int bdk_if_phy_marvell_setup(bdk_node_t node, int qlm, int mdio_bus, int phy_addr) +{ + BDK_TRACE(PHY,"In %s\n",__FUNCTION__); + + /* Check if the PHY is marvell PHY we expect */ + int phy_status = bdk_mdio_read(node, mdio_bus, phy_addr, BDK_MDIO_PHY_REG_ID1); + if (phy_status != 0x0141) + return 0; + + /* Check that the GSER mode is SGMII */ + /* Switch the marvell PHY to the correct mode */ + bdk_qlm_modes_t qlm_mode = bdk_qlm_get_mode(node, qlm); + + BDK_TRACE(PHY,"%s: QLM:%d QLM_MODE:%d\n",__FUNCTION__, qlm, qlm_mode); + + if ((qlm_mode != BDK_QLM_MODE_SGMII_1X1) && + (qlm_mode != BDK_QLM_MODE_SGMII_2X1)) + return 0; + + BDK_TRACE(PHY,"%s: Detected Marvell Phy in SGMII mode\n", __FUNCTION__); + for (int port = 0; port < 2; port++) + { + setup_marvell_phy(node, mdio_bus, phy_addr + port); + } + return 0; +} |