This patch fixes not enabled uart2 (and hence serial console) on i.MX53 devices. After following commit 1d255904c306 ("ARM: dts: imx: imx53: Synchronize iMX53 DT with Linux") from the uart2 compatible the 'fsl,imx7d-uart' has been removed (which was correct).
However, the root cause of the problem was the commit 98d62e618bb9 ("arm: imx: add i.MX53 Beckhoff CX9020 Embedded PC") which introduced this compatible.
Moreover, without this patch all i.MX53 UARTs are not usable as neither 'fsl,imx53-uart' nor 'fsl,imx21-uart' are in compatible IDs in drivers/serial/serial_mxc.c file.
The fix is to add 'fsl,imx53-uart' and 'fsl,imx21-uart' as compatibles for the aforementioned serial driver (those are also defined in the Linux kernel).
Signed-off-by: Lukasz Majewski lukma@denx.de
---
Changes in v2: - Add 'fsl,imx21-uart' to the compatible table - Change the subject tags to 'serial: mxc:"
drivers/serial/serial_mxc.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/serial/serial_mxc.c b/drivers/serial/serial_mxc.c index a435e68005..e73e979897 100644 --- a/drivers/serial/serial_mxc.c +++ b/drivers/serial/serial_mxc.c @@ -342,6 +342,8 @@ static int mxc_serial_ofdata_to_platdata(struct udevice *dev) }
static const struct udevice_id mxc_serial_ids[] = { + { .compatible = "fsl,imx21-uart" }, + { .compatible = "fsl,imx53-uart" }, { .compatible = "fsl,imx6sx-uart" }, { .compatible = "fsl,imx6ul-uart" }, { .compatible = "fsl,imx7d-uart" },