On 23-08-2013 18:16, Daniel Mack wrote:
At least the AM33xx SoC has a control module register to configure
details such as the hardware ethernet interface mode.
I'm not sure whether all SoCs which feature the cpsw block have such a
register, so that third memory region is considered optional for now.
Signed-off-by: Daniel Mack <[email protected]>
[...]
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 849af52..7a25ff4 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
[...]
@@ -1999,6 +2000,21 @@ static int cpsw_probe(struct platform_device *pdev)
goto clean_runtime_disable_ret;
}
+ /* If the control memory region is unspecified, continue without it.
+ * If it is specified, but we're unable to reserve it, bail.
+ */
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
+ if (!res) {
+ dev_info(priv->dev, "error getting control i/o resource\n");
+ goto no_gmii_sel;
+ }
+ priv->gmii_sel_reg = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(priv->gmii_sel_reg)) {
+ dev_err(priv->dev, "unable to map control i/o region\n");
You didn't actually seem to heed my words about error message. And don't
you want to do:
res = PTR_ERR(priv->gmii_sel_reg);
+ goto clean_runtime_disable_ret;
+ }
+
+no_gmii_sel:
memset(&dma_params, 0, sizeof(dma_params));
memset(&ale_params, 0, sizeof(ale_params));
WBR, Sergei
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