In order to support features that are specific to the AM335x IP, we have
to add hardware types and another compatible string.
Signed-off-by: Daniel Mack <zonque@xxxxxxxxx>
---
Documentation/devicetree/bindings/net/cpsw.txt | 3 ++-
drivers/net/ethernet/ti/cpsw.c | 32 ++++++++++++++++++++------
drivers/net/ethernet/ti/cpsw.h | 1 +
3 files changed, 28 insertions(+), 8 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/cpsw.txt b/Documentation/devicetree/bindings/net/cpsw.txt
index 4e5ca54..b717458 100644
--- a/Documentation/devicetree/bindings/net/cpsw.txt
+++ b/Documentation/devicetree/bindings/net/cpsw.txt
@@ -2,7 +2,8 @@ TI SoC Ethernet Switch Controller Device Tree Bindings
------------------------------------------------------
Required properties:
-- compatible : Should be "ti,cpsw"
+- compatible : Should be "ti,cpsw" for generic cpsw support, or
+ "ti,am3352-cpsw" for AM3352 SoCs
- reg : physical base address and size of the cpsw
registers map.
An optional third memory region can be supplied if
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index bd0b664..2e19de0 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -155,6 +155,11 @@ do { \
((priv->data.dual_emac) ? priv->emac_port : \
priv->data.active_slave)
+enum {
+ CPSW_TYPE_GENERIC,
+ CPSW_TYPE_AM33XX
+};
+
static int debug_level;
module_param(debug_level, int, 0);
MODULE_PARM_DESC(debug_level, "cpsw debug level (NETIF_MSG bits)");
@@ -1692,17 +1697,36 @@ static void cpsw_slave_init(struct cpsw_slave *slave, struct cpsw_priv *priv,
slave->port_vlan = data->dual_emac_res_vlan;
}
+static const struct of_device_id cpsw_of_mtable[] = {
+ {
+ .compatible = "ti,cpsw",
+ .data = (void *) CPSW_TYPE_GENERIC
+ }, {
+ .compatible = "ti,am3352-cpsw",
+ .data = (void *) CPSW_TYPE_AM33XX
+ },
+ { /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, cpsw_of_mtable);
+
static int cpsw_probe_dt(struct cpsw_platform_data *data,
struct platform_device *pdev)
{
struct device_node *node = pdev->dev.of_node;
+ const struct of_device_id *match;
struct device_node *slave_node;
+ unsigned long match_data;
int i = 0, ret;
u32 prop;
- if (!node)
+ match = of_match_device(cpsw_of_mtable, &pdev->dev);
+
+ if (!node || !match)
return -EINVAL;
+ match_data = (unsigned long) match->data;
+ data->hw_type = match_data;
+
if (of_property_read_u32(node, "slaves", &prop)) {
pr_err("Missing slaves property in the DT.\n");
return -EINVAL;
@@ -2228,12 +2252,6 @@ static const struct dev_pm_ops cpsw_pm_ops = {
.resume = cpsw_resume,
};
-static const struct of_device_id cpsw_of_mtable[] = {
- { .compatible = "ti,cpsw", },
- { /* sentinel */ },
-};
-MODULE_DEVICE_TABLE(of, cpsw_of_mtable);
-
static struct platform_driver cpsw_driver = {
.driver = {
.name = "cpsw",
diff --git a/drivers/net/ethernet/ti/cpsw.h b/drivers/net/ethernet/ti/cpsw.h
index eb3e101..96c374a 100644
--- a/drivers/net/ethernet/ti/cpsw.h
+++ b/drivers/net/ethernet/ti/cpsw.h
@@ -37,6 +37,7 @@ struct cpsw_platform_data {
u32 mac_control; /* Mac control register */
u16 default_vlan; /* Def VLAN for ALE lookup in VLAN aware mode*/
bool dual_emac; /* Enable Dual EMAC mode */
+ u32 hw_type; /* hardware type as specified in 'compatible' */
};
#endif /* __CPSW_H__ */
--
1.8.3.1
--
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