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[target][stm32f7] Configure Ethernet PHY for stm32f746g-disco

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This commit is contained in:
Carlos Pizano
2015-09-11 11:02:29 -07:00
parent ba3d7ce316
commit 7bcf5f66c5
6 changed files with 116 additions and 12 deletions
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2
platform/stm32f7xx/STM32F7xx_HAL_Driver/Inc/stm32f7xx_hal_conf.h
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@@ -189,8 +189,6 @@
/* Section 2: PHY configuration section */
/* DP83848 PHY Address*/
#define DP83848_PHY_ADDRESS 0x01
/* PHY Reset delay these values are based on a 1 ms Systick interrupt*/
#define PHY_RESET_DELAY ((uint32_t)0x000000FF)
/* PHY Configuration delay */

18
platform/stm32f7xx/eth.c
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@@ -65,6 +65,7 @@
#include <arch/arm/cm.h>
#include <platform.h>
#include <platform/stm32.h>
#include <platform/eth.h>
#if WITH_LIB_MINIP
#include <lib/minip.h>
@@ -73,6 +74,12 @@
#define LOCAL_TRACE 0
/* LAN8742A PHY Address*/
#define LAN8742A_PHY_ADDRESS 0x00
/* DP83848 PHY Address*/
#define DP83848_PHY_ADDRESS 0x01
struct eth_status {
ETH_HandleTypeDef EthHandle;
@@ -97,7 +104,7 @@ static int eth_rx_worker(void *arg);
static int eth_send_raw_pkt(pktbuf_t *p);
#endif
status_t eth_init(const uint8_t *mac_addr)
status_t eth_init(const uint8_t *mac_addr, eth_phy_itf eth_phy)
{
LTRACE_ENTRY;
@@ -111,10 +118,12 @@ status_t eth_init(const uint8_t *mac_addr)
eth.EthHandle.Init.AutoNegotiation = ETH_AUTONEGOTIATION_ENABLE;
eth.EthHandle.Init.Speed = ETH_SPEED_100M;
eth.EthHandle.Init.DuplexMode = ETH_MODE_FULLDUPLEX;
eth.EthHandle.Init.MediaInterface = ETH_MEDIA_INTERFACE_MII;
eth.EthHandle.Init.MediaInterface =
eth_phy == PHY_DP83848 ? ETH_MEDIA_INTERFACE_MII : ETH_MEDIA_INTERFACE_RMII;
eth.EthHandle.Init.RxMode = ETH_RXINTERRUPT_MODE;
eth.EthHandle.Init.ChecksumMode = ETH_CHECKSUM_BY_HARDWARE;
eth.EthHandle.Init.PhyAddress = DP83848_PHY_ADDRESS;
eth.EthHandle.Init.PhyAddress =
eth_phy == PHY_DP83848 ? DP83848_PHY_ADDRESS : LAN8742A_PHY_ADDRESS;
/* configure ethernet peripheral (GPIOs, clocks, MAC, DMA) */
if (HAL_ETH_Init(&eth.EthHandle) == HAL_OK) {
@@ -275,7 +284,8 @@ static int eth_rx_worker(void *arg)
/* Check whether the link is up or down*/
if (val & PHY_LINK_STATUS) {
printf("eth: link up\n");
//TODO(cpu): investigate why this keeps firing on the disco board.
//printf("eth: link up\n");
//netif_set_link_up(link_arg->netif);
} else {
printf("eth: link down\n");

37
platform/stm32f7xx/include/platform/eth.h Normal file
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@@ -0,0 +1,37 @@
/*
* Copyright (c) 2015 Carlos Pizano-Uribe <cpu@chromium.org>
*
* 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.
*/
#pragma once
#include <stdint.h>
/* ethernet driver public api */
typedef enum {
PHY_LAN8742A, // Microchip.
PHY_DP83848, // Texas Instruments.
} eth_phy_itf;
struct pktbuf;
status_t eth_init(const uint8_t *mac_addr, eth_phy_itf eth_phy);
status_t stm32_eth_send_minip_pkt(struct pktbuf *p);

5
platform/stm32f7xx/include/platform/stm32.h
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@@ -35,8 +35,3 @@ void stm32_gpio_early_init(void);
void stm32_flash_early_init(void);
void stm32_flash_init(void);
/* ethernet driver public api */
struct pktbuf;
status_t eth_init(const uint8_t *mac_addr);
status_t stm32_eth_send_minip_pkt(struct pktbuf *p);

3
target/stm32746g-eval2/init.c
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@@ -31,6 +31,7 @@
#include <platform/stm32.h>
#include <platform/sdram.h>
#include <platform/gpio.h>
#include <platform/eth.h>
#include <target/debugconfig.h>
#include <target/gpioconfig.h>
#include <reg.h>
@@ -179,7 +180,7 @@ void target_init(void)
mac_addr[0] &= ~(1<<0);
mac_addr[0] |= (1<<1);
eth_init(mac_addr);
eth_init(mac_addr, PHY_DP83848);
/* start minip */
minip_set_macaddr(mac_addr);

63
target/stm32f746g-disco/init.c
View File

@@ -21,6 +21,7 @@
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <err.h>
#include <stdlib.h>
#include <debug.h>
#include <trace.h>
#include <target.h>
@@ -29,6 +30,7 @@
#include <platform/stm32.h>
#include <platform/sdram.h>
#include <platform/gpio.h>
#include <platform/eth.h>
#include <target/debugconfig.h>
#include <target/gpioconfig.h>
#include <reg.h>
@@ -60,9 +62,23 @@ void target_early_init(void)
#endif
}
static uint8_t* gen_mac_address(void) {
static uint8_t mac_addr[6];
for (size_t i = 0; i < sizeof(mac_addr); i++) {
mac_addr[i] = rand() & 0xff;
}
/* unicast and locally administered */
mac_addr[0] &= ~(1<<0);
mac_addr[0] |= (1<<1);
return mac_addr;
}
void target_init(void)
{
stm32_debug_init();
eth_init(gen_mac_address(), PHY_LAN8742A);
}
static void MPU_RegionConfig(void)
@@ -142,3 +158,50 @@ void stm_sdram_GPIO_init(void)
HAL_GPIO_Init(GPIOH, &gpio_init_structure);
}
/**
* @brief Initializes the ETH MSP.
* @param heth: ETH handle
* @retval None
*/
/* called back from the HAL_ETH_Init routine */
void HAL_ETH_MspInit(ETH_HandleTypeDef *heth)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Enable GPIOs clocks */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
/* Ethernet pins configuration ************************************************/
/*
RMII_REF_CLK ----------------------> PA1
RMII_MDIO -------------------------> PA2
RMII_MDC --------------------------> PC1
RMII_MII_CRS_DV -------------------> PA7
RMII_MII_RXD0 ---------------------> PC4
RMII_MII_RXD1 ---------------------> PC5
RMII_MII_TX_EN --------------------> PG11
RMII_MII_TXD0 ---------------------> PG13
RMII_MII_TXD1 ---------------------> PG14
*/
/* Configure PA1, PA2 and PA7 */
GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
GPIO_InitStructure.Mode = GPIO_MODE_AF_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Alternate = GPIO_AF11_ETH;
GPIO_InitStructure.Pin = GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_7;
HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);
/* Configure PC1, PC4 and PC5 */
GPIO_InitStructure.Pin = GPIO_PIN_1 | GPIO_PIN_4 | GPIO_PIN_5;
HAL_GPIO_Init(GPIOC, &GPIO_InitStructure);
/* Configure PG2, PG11, PG13 and PG14 */
GPIO_InitStructure.Pin = GPIO_PIN_2 | GPIO_PIN_11 | GPIO_PIN_13 | GPIO_PIN_14;
HAL_GPIO_Init(GPIOG, &GPIO_InitStructure);
}