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stm32/network_lan: Add the phy_type=x keyword option to network.LAN().

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With LAN8742, LAN8720, LAN83825 and DP83848 as possible options, and the
symbols PHY_LAN8720, PHY_LAN8742, PHY_DP83825 and PHY_DP8348.  The default
is PHY_LAN8742 which is the existing behaviour.

The eth_init() parameters for the Portenta H7 board are set to phy_addr=0
and phy_type=LAN8742, which matches the previous defaults and the
schematics.

Tested with LAN8720 and DP83848 breakout boards at 10M Duplex and 100M
Duplex modes.

Signed-off-by: robert-hh <robert@hammelrath.com>
This commit is contained in:
robert-hh
2024-02-15 21:05:51 +01:00
committed by Damien George
parent 085e3244f0
commit bf68bb95f9
7 changed files with 171 additions and 31 deletions
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59
ports/stm32/eth_phy.c Normal file
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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Damien P. George
* Copyright (c) 2024 Robert Hammelrath
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "py/mphal.h"
#include "eth_phy.h"
#if defined(MICROPY_HW_ETH_MDC)
#define PHY_SCSR_LAN87XX (0x001f)
#define PHY_SCSR_LAN87XX_SPEED_Pos (2)
#define PHY_SCSR_LAN87XX_SPEED_Msk (7)
#define PHY_SCSR_DP838XX (0x0010)
#define PHY_RECR_DP838XX (0x0015)
#define PHY_SCSR_DP838XX_DUPLEX_Msk (4)
#define PHY_SCSR_DP838XX_10M_Msk (2)
int16_t eth_phy_lan87xx_get_link_status(uint32_t phy_addr) {
// Get the link mode & speed
int16_t scsr = eth_phy_read(phy_addr, PHY_SCSR_LAN87XX);
return (scsr >> PHY_SCSR_LAN87XX_SPEED_Pos) & PHY_SCSR_LAN87XX_SPEED_Msk;
}
int16_t eth_phy_dp838xx_get_link_status(uint32_t phy_addr) {
int16_t scsr = 0;
// Get the link mode & speed
uint16_t temp = eth_phy_read(phy_addr, PHY_SCSR_DP838XX);
scsr = (temp & PHY_SCSR_DP838XX_10M_Msk) ? PHY_SPEED_10HALF : PHY_SPEED_100HALF;
if (temp & PHY_SCSR_DP838XX_DUPLEX_Msk) {
scsr |= PHY_DUPLEX;
}
return scsr;
}
#endif