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stm32/eth_phy: Move PHY initialization to a dedicated function.

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Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George
2025-11-03 23:53:45 +11:00
parent 7713cdd8fe
commit 0acac07a16
3 changed files with 11 additions and 3 deletions
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7
ports/stm32/eth.c
View File

@@ -142,6 +142,7 @@ typedef struct _eth_t {
struct netif netif;
struct dhcp dhcp_struct;
uint32_t phy_addr;
void (*phy_init)(uint32_t phy_addr);
int16_t (*phy_get_link_status)(uint32_t phy_addr);
} eth_t;
@@ -212,6 +213,7 @@ int eth_init(eth_t *self, int mac_idx, uint32_t phy_addr, int phy_type) {
mp_hal_get_mac(mac_idx, &self->netif.hwaddr[0]);
self->netif.hwaddr_len = 6;
self->phy_addr = phy_addr;
self->phy_init = eth_phy_generic_init;
if (phy_type == ETH_PHY_DP83825 || phy_type == ETH_PHY_DP83848) {
self->phy_get_link_status = eth_phy_dp838xx_get_link_status;
} else if (phy_type == ETH_PHY_LAN8720 || phy_type == ETH_PHY_LAN8742) {
@@ -417,9 +419,8 @@ static int eth_mac_init(eth_t *self) {
ETH->DMA_CH[TX_DMA_CH].DMACCR &= ~(ETH_DMACxCR_DSL_Msk);
#endif
// Reset the PHY
eth_phy_write(self->phy_addr, PHY_BCR, PHY_BCR_SOFT_RESET);
mp_hal_delay_ms(50);
// Reset and initialize the PHY.
self->phy_init(self->phy_addr);
// Wait for the PHY link to be established
int phy_state = 0;

6
ports/stm32/eth_phy.c
View File

@@ -48,6 +48,12 @@
#define PHY_RTL8211_PHYSR_SPEED_Msk (3 << PHY_RTL8211_PHYSR_SPEED_Pos)
#define PHY_RTL8211_PHYSR_DUPLEX_Msk (0x0008)
void eth_phy_generic_init(uint32_t phy_addr) {
// Reset the PHY.
eth_phy_write(phy_addr, PHY_BCR, PHY_BCR_SOFT_RESET);
mp_hal_delay_ms(50);
}
int16_t eth_phy_lan87xx_get_link_status(uint32_t phy_addr) {
// Get the link mode & speed
uint16_t scsr = eth_phy_read(phy_addr, PHY_SCSR_LAN87XX);

1
ports/stm32/eth_phy.h
View File

@@ -61,6 +61,7 @@
uint32_t eth_phy_read(uint32_t phy_addr, uint32_t reg);
void eth_phy_write(uint32_t phy_addr, uint32_t reg, uint32_t val);
void eth_phy_generic_init(uint32_t phy_addr);
int16_t eth_phy_lan87xx_get_link_status(uint32_t phy_addr);
int16_t eth_phy_dp838xx_get_link_status(uint32_t phy_addr);
int16_t eth_phy_rtl8211_get_link_status(uint32_t phy_addr);