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[platform][stm32f7xx] first stab at working ethernet driver

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Does nothing but receive packets and drop them on the floor. Wire up
to net stack(s) next.
This commit is contained in:
Travis Geiselbrecht
2015-08-26 17:01:05 -07:00
parent ca008e46fa
commit 5d1e1a6d60
3 changed files with 452 additions and 5 deletions
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124
target/stm32746g-eval2/init.c
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@@ -36,6 +36,9 @@
extern uint8_t BSP_SDRAM_Init(void);
extern uint8_t BSP_LCD_Init(void);
extern uint8_t BSP_SRAM_Init(void);
extern status_t eth_init(void);
static void MPU_RegionConfig(void);
void target_early_init(void)
@@ -153,7 +156,11 @@ static void MPU_RegionConfig(void)
void target_init(void)
{
TRACE_ENTRY;
stm32_debug_init();
eth_init();
TRACE_EXIT;
}
#if 0
@@ -175,3 +182,120 @@ void target_set_debug_led(unsigned int led, bool on)
}
}
#endif
/**
* @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_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOE_CLK_ENABLE();
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOI_CLK_ENABLE();
/* Ethernet pins configuration ************************************************/
/*
ETH_MDIO -------------------------> PA2
ETH_MDC --------------------------> PC1
ETH_PPS_OUT ----------------------> PB5
ETH_MII_RXD2 ---------------------> PH6
ETH_MII_RXD3 ---------------------> PH7
ETH_MII_TX_CLK -------------------> PC3
ETH_MII_TXD2 ---------------------> PC2
ETH_MII_TXD3 ---------------------> PE2
ETH_MII_RX_CLK -------------------> PA1
ETH_MII_RX_DV --------------------> PA7
ETH_MII_RXD0 ---------------------> PC4
ETH_MII_RXD1 ---------------------> PC5
ETH_MII_TX_EN --------------------> PG11
ETH_MII_TXD0 ---------------------> PG13
ETH_MII_TXD1 ---------------------> PG14
ETH_MII_RX_ER --------------------> PI10 (not configured)
ETH_MII_CRS ----------------------> PA0 (not configured)
ETH_MII_COL ----------------------> PH3 (not configured)
*/
/* 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);
/* Note : ETH_MDIO is connected to PA2 which is shared with other signals like SAI2_SCKB.
By default on STM32756G-EVAL board, PA2 is connected to SAI2_SCKB, so to connect PA2 to ETH_MDIO :
- unsolder bridge SB24 (SAI2_CKB)
- solder bridge SB5 (ETH_MDIO) */
/* Configure PB5 */
GPIO_InitStructure.Pin = GPIO_PIN_5;
HAL_GPIO_Init(GPIOB, &GPIO_InitStructure);
/* Configure PE2 */
GPIO_InitStructure.Pin = GPIO_PIN_2;
HAL_GPIO_Init(GPIOE, &GPIO_InitStructure);
/* Configure PC1, PC2, PC3, PC4 and PC5 */
GPIO_InitStructure.Pin = GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_5;
HAL_GPIO_Init(GPIOC, &GPIO_InitStructure);
/* Note : ETH_MDC is connected to PC1 which is shared with other signals like SAI1_SDA.
By default on STM32756G-EVAL board, PC1 is connected to SAI1_SDA, so to connect PC1 to ETH_MDC :
- unsolder bridge SB22 (SAI1_SDA)
- solder bridge SB33 (ETH_MDC) */
/* Configure PG11, PG14 and PG13 */
GPIO_InitStructure.Pin = GPIO_PIN_11 | GPIO_PIN_13 | GPIO_PIN_14;
HAL_GPIO_Init(GPIOG, &GPIO_InitStructure);
/* Configure PH6, PH7 */
GPIO_InitStructure.Pin = GPIO_PIN_6 | GPIO_PIN_7;
HAL_GPIO_Init(GPIOH, &GPIO_InitStructure);
/* Configure PA0
GPIO_InitStructure.Pin = GPIO_PIN_0;
HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);
Note: Ethernet Full duplex mode works properly in the default setting
(which MII_CRS is not connected to PA0 of STM32F756NGH6) because PA0 is shared
with MC_ENA.
If Half duplex mode is needed, uncomment PA0 configuration code source (above
the note) and close the SB36 solder bridge of the STM32756G-EVAL board .
*/
/* Configure PH3
GPIO_InitStructure.Pin = GPIO_PIN_3;
HAL_GPIO_Init(GPIOH, &GPIO_InitStructure);
Note: Ethernet Full duplex mode works properly in the default setting
(which MII_COL is not connected to PH3 of STM32F756NGH6) because PH3 is shared
with SDRAM chip select SDNE0.
If Half duplex mode is needed, uncomment PH3 configuration code source (above
the note) and close SB47 solder bridge of the STM32756G-EVAL board.
*/
/* Configure PI10
GPIO_InitStructure.Pin = GPIO_PIN_10;
HAL_GPIO_Init(GPIOI, &GPIO_InitStructure);
Note: Ethernet works properly in the default setting (which RX_ER is not
connected to PI10 of STM32F756NGH6) because PI10 is shared with data signal
of SDRAM.
If RX_ER signal is needed, uncomment PI10 configuration code source (above
the note) then remove R248 and solder SB9 of the STM32756G-EVAL board.
*/
}