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net: cpsw: Support new cpsw-switch DT bindings

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Upstream devicetrees use a newer DT binding using cpsw-switch
compatibles. The bindings are a bit different, so two functions are
introduced to capture the differences, cpsw_eth_of_to_plat_switch() and
cpsw_eth_of_to_plat_legacy().

Signed-off-by: Markus Schneider-Pargmann (TI) <msp@baylibre.com>
This commit is contained in:
Markus Schneider-Pargmann (TI)
2026-04-10 13:04:06 +02:00
committed by Jerome Forissier
parent a1bc52f489
commit 5bb7ae8921
1 changed files with 115 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

148
drivers/net/ti/cpsw.c
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@@ -33,6 +33,7 @@
#define PKT_MAX (1500 + 14 + 4 + 4)
#define CLEAR_BIT 1
#define GIGABITEN BIT(7)
#define GMII_EN BIT(5)
#define FULLDUPLEXEN BIT(0)
#define MIIEN BIT(15)
#define CTL_EXT_EN BIT(18)
@@ -1133,33 +1134,13 @@ static void cpsw_eth_of_parse_slave(struct cpsw_platform_data *data,
"max-speed", 0);
}
static int cpsw_eth_of_to_plat(struct udevice *dev)
static int cpsw_eth_of_to_plat_legacy(struct udevice *dev,
struct cpsw_platform_data *data)
{
struct eth_pdata *pdata = dev_get_plat(dev);
struct cpsw_platform_data *data;
struct gpio_desc *mode_gpios;
int slave_index = 0;
int num_mode_gpios;
ofnode subnode;
int ret;
data = calloc(1, sizeof(struct cpsw_platform_data));
if (!data)
return -ENOMEM;
pdata->priv_pdata = data;
pdata->iobase = dev_read_addr(dev);
data->version = CPSW_CTRL_VERSION_2;
data->bd_ram_ofs = CPSW_BD_OFFSET;
data->ale_reg_ofs = CPSW_ALE_OFFSET;
data->cpdma_reg_ofs = CPSW_CPDMA_OFFSET;
data->mdio_div = CPSW_MDIO_DIV;
data->host_port_reg_ofs = CPSW_HOST_PORT_OFFSET,
pdata->phy_interface = -1;
data->cpsw_base = pdata->iobase;
ret = dev_read_s32(dev, "cpdma_channels", &data->channels);
if (ret) {
printf("error: cpdma_channels not found in dt\n");
@@ -1192,17 +1173,6 @@ static int cpsw_eth_of_to_plat(struct udevice *dev)
return ret;
}
num_mode_gpios = gpio_get_list_count(dev, "mode-gpios");
if (num_mode_gpios > 0) {
mode_gpios = malloc(sizeof(struct gpio_desc) *
num_mode_gpios);
gpio_request_list_by_name(dev, "mode-gpios", mode_gpios,
num_mode_gpios, GPIOD_IS_OUT);
free(mode_gpios);
}
data->active_slave = dev_read_u32_default(dev, "active_slave", 0);
ofnode_for_each_subnode(subnode, dev_ofnode(dev)) {
const char *name;
@@ -1236,6 +1206,115 @@ static int cpsw_eth_of_to_plat(struct udevice *dev)
}
}
return 0;
}
static int cpsw_eth_of_to_plat_switch(struct udevice *dev,
struct cpsw_platform_data *data)
{
ofnode eth_ports_node, subnode;
int ret;
data->channels = 8;
data->ale_entries = 1024;
data->mac_control = GMII_EN;
eth_ports_node = ofnode_find_subnode(dev_ofnode(dev), "ethernet-ports");
data->slaves = ofnode_get_child_count(eth_ports_node);
if (!data->slaves) {
pr_err("cpsw: No ethernet-ports defined\n");
return -EINVAL;
}
data->slave_data = malloc(sizeof(struct cpsw_slave_data) * data->slaves);
if (!data->slave_data)
return -ENOMEM;
ofnode_for_each_subnode(subnode, eth_ports_node) {
struct ofnode_phandle_args args;
u32 port_id;
ret = ofnode_read_u32(subnode, "reg", &port_id);
if (ret || !port_id || port_id > data->slaves) {
pr_err("cpsw: invalid or missing reg in port node\n");
return -EINVAL;
}
cpsw_eth_of_parse_slave(data, port_id - 1, subnode);
if (!data->gmii_sel) {
ret = ofnode_parse_phandle_with_args(subnode, "phys", "#phy-cells",
0, 0, &args);
if (!ret)
data->gmii_sel = ofnode_get_addr(args.node);
}
}
if (!data->gmii_sel) {
pr_err("No port specified phys correctly\n");
return -ENOENT;
}
ofnode_for_each_subnode(subnode, dev_ofnode(dev)) {
const char *name = ofnode_get_name(subnode);
if (strncmp(name, "mdio", 4))
continue;
data->mdio_base = ofnode_get_addr(subnode);
if (data->mdio_base == FDT_ADDR_T_NONE) {
pr_err("Not able to get MDIO address space\n");
return -ENOENT;
}
}
return 0;
}
static int cpsw_eth_of_to_plat(struct udevice *dev)
{
struct eth_pdata *pdata = dev_get_plat(dev);
struct cpsw_platform_data *data;
struct gpio_desc *mode_gpios;
int num_mode_gpios;
int ret;
bool switch_dt_bindings =
ofnode_valid(ofnode_find_subnode(dev_ofnode(dev), "ethernet-ports"));
data = calloc(1, sizeof(struct cpsw_platform_data));
if (!data)
return -ENOMEM;
pdata->priv_pdata = data;
pdata->iobase = dev_read_addr(dev);
data->version = CPSW_CTRL_VERSION_2;
data->bd_ram_ofs = CPSW_BD_OFFSET;
data->ale_reg_ofs = CPSW_ALE_OFFSET;
data->cpdma_reg_ofs = CPSW_CPDMA_OFFSET;
data->mdio_div = CPSW_MDIO_DIV;
data->host_port_reg_ofs = CPSW_HOST_PORT_OFFSET;
pdata->phy_interface = -1;
data->cpsw_base = pdata->iobase;
num_mode_gpios = gpio_get_list_count(dev, "mode-gpios");
if (num_mode_gpios > 0) {
mode_gpios = malloc(sizeof(struct gpio_desc) * num_mode_gpios);
gpio_request_list_by_name(dev, "mode-gpios", mode_gpios,
num_mode_gpios, GPIOD_IS_OUT);
free(mode_gpios);
}
data->active_slave = dev_read_u32_default(dev, "active_slave", 0);
if (switch_dt_bindings)
ret = cpsw_eth_of_to_plat_switch(dev, data);
else
ret = cpsw_eth_of_to_plat_legacy(dev, data);
if (ret)
return ret;
data->slave_data[0].slave_reg_ofs = CPSW_SLAVE0_OFFSET;
data->slave_data[0].sliver_reg_ofs = CPSW_SLIVER0_OFFSET;
@@ -1270,6 +1349,9 @@ static const struct udevice_id cpsw_eth_ids[] = {
{ .compatible = "ti,am335x-cpsw", .data = (ulong)&cpsw_data_am3352 },
{ .compatible = "ti,am4372-cpsw", .data = (ulong)&cpsw_data_am3352 },
{ .compatible = "ti,dra7-cpsw", .data = (ulong)&cpsw_data_dra7xx },
{ .compatible = "ti,am335x-cpsw-switch", .data = (ulong)&cpsw_data_am3352 },
{ .compatible = "ti,am4372-cpsw-switch", .data = (ulong)&cpsw_data_am3352 },
{ .compatible = "ti,dra7-cpsw-switch", .data = (ulong)&cpsw_data_dra7xx },
{ }
};
#endif