adafruit-mirror/zephyr
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 9

drivers: ethernet: lan865x: add internal PHY driver interface

Browse source 
Add phy driver probing part to activate the internal PHY driver support.

Signed-off-by: Parthiban Veerasooran <parthiban.veerasooran@microchip.com>
This commit is contained in:
Parthiban Veerasooran 2024-12-16 18:10:10 +05:30 committed by Benjamin Cabé
parent 7cfa5bf6cf
commit 5523e43a9a
3 changed files with 42 additions and 33 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/ethernet/Kconfig.lan865x
View file

@ -6,6 +6,7 @@ menuconfig ETH_LAN865X
default y
depends on DT_HAS_MICROCHIP_LAN865X_ENABLED
select SPI
select MDIO
select NET_L2_ETHERNET_MGMT
help
The LAN865X is a low power, 10BASE-T1S transceiver compliant with

61
drivers/ethernet/eth_lan865x.c
View file

@ -66,10 +66,36 @@ static int lan865x_mac_rxtx_control(const struct device *dev, bool en)
return oa_tc6_reg_write(ctx->tc6, LAN865x_MAC_NCR, ctl);
}
static int lan865x_enable_sync(const struct device *dev)
{
struct lan865x_data *ctx = dev->data;
uint32_t val;
int ret;
ret = oa_tc6_reg_read(ctx->tc6, OA_CONFIG0, &val);
if (ret) {
return ret;
}
val |= OA_CONFIG0_SYNC | OA_CONFIG0_RFA_ZARFE;
ret = oa_tc6_reg_write(ctx->tc6, OA_CONFIG0, val);
if (ret) {
return ret;
}
return lan865x_mac_rxtx_control(dev, LAN865x_MAC_TXRX_ON);
}
static void lan865x_iface_init(struct net_if *iface)
{
const struct device *dev = net_if_get_device(iface);
struct lan865x_data *ctx = dev->data;
int ret;
ret = lan865x_enable_sync(dev);
if (ret) {
LOG_ERR("LAN865x sync enable failed: %d\n", ret);
return;
}
net_if_set_link_addr(iface, ctx->mac_address, sizeof(ctx->mac_address), NET_LINK_ETHERNET);
@ -96,7 +122,7 @@ static int lan865x_set_config(const struct device *dev, enum ethernet_config_typ
{
const struct lan865x_config *cfg = dev->config;
struct lan865x_data *ctx = dev->data;
int ret = -ENOTSUP;
struct phy_plca_cfg plca_cfg;
if (type == ETHERNET_CONFIG_TYPE_PROMISC_MODE) {
return oa_tc6_reg_write(ctx->tc6, LAN865x_MAC_NCFGR, LAN865x_MAC_NCFGR_CAF);
@ -112,25 +138,19 @@ static int lan865x_set_config(const struct device *dev, enum ethernet_config_typ
}
if (type == ETHERNET_CONFIG_TYPE_T1S_PARAM) {
ret = lan865x_mac_rxtx_control(dev, LAN865x_MAC_TXRX_OFF);
if (ret) {
return ret;
}
if (config->t1s_param.type == ETHERNET_T1S_PARAM_TYPE_PLCA_CONFIG) {
cfg->plca->enable = config->t1s_param.plca.enable;
cfg->plca->node_id = config->t1s_param.plca.node_id;
cfg->plca->node_count = config->t1s_param.plca.node_count;
cfg->plca->burst_count = config->t1s_param.plca.burst_count;
cfg->plca->burst_timer = config->t1s_param.plca.burst_timer;
cfg->plca->to_timer = config->t1s_param.plca.to_timer;
}
plca_cfg.enable = config->t1s_param.plca.enable;
plca_cfg.node_id = config->t1s_param.plca.node_id;
plca_cfg.node_count = config->t1s_param.plca.node_count;
plca_cfg.burst_count = config->t1s_param.plca.burst_count;
plca_cfg.burst_timer = config->t1s_param.plca.burst_timer;
plca_cfg.to_timer = config->t1s_param.plca.to_timer;
/* Reset is required to re-program PLCA new configuration */
lan865x_gpio_reset(dev);
return phy_set_plca_cfg(cfg->phy, &plca_cfg);
}
}
return ret;
return -ENOTSUP;
}
static int lan865x_wait_for_reset(const struct device *dev)
@ -301,7 +321,7 @@ static void lan865x_int_thread(const struct device *dev)
{
struct lan865x_data *ctx = dev->data;
struct oa_tc6 *tc6 = ctx->tc6;
uint32_t sts, val, ftr;
uint32_t sts, ftr;
int ret;
while (true) {
@ -310,11 +330,8 @@ static void lan865x_int_thread(const struct device *dev)
oa_tc6_reg_read(tc6, OA_STATUS0, &sts);
if (sts & OA_STATUS0_RESETC) {
oa_tc6_reg_write(tc6, OA_STATUS0, sts);
lan865x_default_config(dev);
oa_tc6_reg_read(tc6, OA_CONFIG0, &val);
val |= OA_CONFIG0_SYNC | OA_CONFIG0_RFA_ZARFE;
oa_tc6_reg_write(tc6, OA_CONFIG0, val);
lan865x_mac_rxtx_control(dev, LAN865x_MAC_TXRX_ON);
ctx->reset = true;
/*
@ -449,6 +466,8 @@ static const struct ethernet_api lan865x_api_func = {
.interrupt = GPIO_DT_SPEC_INST_GET(inst, int_gpios), \
.reset = GPIO_DT_SPEC_INST_GET(inst, rst_gpios), \
.timeout = CONFIG_ETH_LAN865X_TIMEOUT, \
.phy = DEVICE_DT_GET( \
DT_CHILD(DT_INST_CHILD(inst, lan865x_mdio), ethernet_phy_##inst))}; \
\
struct oa_tc6 oa_tc6_##inst = { \
.cps = 64, .protected = 0, .spi = &lan865x_config_##inst.spi}; \

13
drivers/ethernet/eth_lan865x_priv.h
View file

@ -44,24 +44,13 @@
/* Memory Map Sector (MMS) 10 (0xA) */
#define LAN865x_DEVID MMS_REG(0xA, 0x094)
struct lan865x_config_plca {
bool enable: 1; /* 1 - PLCA enable, 0 - CSMA/CD enable */
uint8_t node_id /* PLCA node id range: 0 to 254 */;
uint8_t node_count; /* PLCA node count range: 1 to 255 */
uint8_t burst_count; /* PLCA burst count range: 0x0 to 0xFF */
uint8_t burst_timer; /* PLCA burst timer */
uint8_t to_timer; /* PLCA TO value */
};
struct lan865x_config {
const struct device *phy;
struct spi_dt_spec spi;
struct gpio_dt_spec interrupt;
struct gpio_dt_spec reset;
int32_t timeout;
/* PLCA */
struct lan865x_config_plca *plca;
/* MAC */
bool tx_cut_through_mode; /* 1 - tx cut through, 0 - Store and forward */
bool rx_cut_through_mode; /* 1 - rx cut through, 0 - Store and forward */