summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/ti/cpsw_ale.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/ethernet/ti/cpsw_ale.c')
-rw-r--r--drivers/net/ethernet/ti/cpsw_ale.c82
1 files changed, 82 insertions, 0 deletions
diff --git a/drivers/net/ethernet/ti/cpsw_ale.c b/drivers/net/ethernet/ti/cpsw_ale.c
index a94aef3f54a5..e70c9697ef47 100644
--- a/drivers/net/ethernet/ti/cpsw_ale.c
+++ b/drivers/net/ethernet/ti/cpsw_ale.c
@@ -46,6 +46,29 @@
#define AM65_CPSW_ALE_THREAD_DEF_REG 0x134
+enum {
+ CPSW_ALE_F_STATUS_REG = BIT(0), /* Status register present */
+ CPSW_ALE_F_HW_AUTOAGING = BIT(1), /* HW auto aging */
+
+ CPSW_ALE_F_COUNT
+};
+
+/**
+ * struct ale_dev_id - The ALE version/SoC specific configuration
+ * @dev_id: ALE version/SoC id
+ * @features: features supported by ALE
+ * @tbl_entries: number of ALE entries
+ * @major_ver_mask: mask of ALE Major Version Value in ALE_IDVER reg.
+ * @nu_switch_ale: NU Switch ALE
+ */
+struct cpsw_ale_dev_id {
+ const char *dev_id;
+ u32 features;
+ u32 tbl_entries;
+ u32 major_ver_mask;
+ bool nu_switch_ale;
+};
+
#define ALE_TABLE_WRITE BIT(31)
#define ALE_TYPE_FREE 0
@@ -979,11 +1002,70 @@ void cpsw_ale_stop(struct cpsw_ale *ale)
cpsw_ale_control_set(ale, 0, ALE_ENABLE, 0);
}
+static const struct cpsw_ale_dev_id cpsw_ale_id_match[] = {
+ {
+ /* am3/4/5, dra7. dm814x, 66ak2hk-gbe */
+ .dev_id = "cpsw",
+ .tbl_entries = 1024,
+ .major_ver_mask = 0xff,
+ },
+ {
+ /* 66ak2h_xgbe */
+ .dev_id = "66ak2h-xgbe",
+ .tbl_entries = 2048,
+ .major_ver_mask = 0xff,
+ },
+ {
+ .dev_id = "66ak2el",
+ .features = CPSW_ALE_F_STATUS_REG,
+ .major_ver_mask = 0x7,
+ .nu_switch_ale = true,
+ },
+ {
+ .dev_id = "66ak2g",
+ .features = CPSW_ALE_F_STATUS_REG,
+ .tbl_entries = 64,
+ .major_ver_mask = 0x7,
+ .nu_switch_ale = true,
+ },
+ {
+ .dev_id = "am65x-cpsw2g",
+ .features = CPSW_ALE_F_STATUS_REG | CPSW_ALE_F_HW_AUTOAGING,
+ .tbl_entries = 64,
+ .major_ver_mask = 0x7,
+ .nu_switch_ale = true,
+ },
+ { },
+};
+
+static const struct
+cpsw_ale_dev_id *cpsw_ale_match_id(const struct cpsw_ale_dev_id *id,
+ const char *dev_id)
+{
+ if (!dev_id)
+ return NULL;
+
+ while (id->dev_id) {
+ if (strcmp(dev_id, id->dev_id) == 0)
+ return id;
+ id++;
+ }
+ return NULL;
+}
+
struct cpsw_ale *cpsw_ale_create(struct cpsw_ale_params *params)
{
+ const struct cpsw_ale_dev_id *ale_dev_id;
struct cpsw_ale *ale;
u32 rev, ale_entries;
+ ale_dev_id = cpsw_ale_match_id(cpsw_ale_id_match, params->dev_id);
+ if (ale_dev_id) {
+ params->ale_entries = ale_dev_id->tbl_entries;
+ params->major_ver_mask = ale_dev_id->major_ver_mask;
+ params->nu_switch_ale = ale_dev_id->nu_switch_ale;
+ }
+
ale = devm_kzalloc(params->dev, sizeof(*ale), GFP_KERNEL);
if (!ale)
return ERR_PTR(-ENOMEM);