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authorSimon Glass <sjg@chromium.org>2014-10-30 20:25:50 -0600
committerHans de Goede <hdegoede@redhat.com>2014-11-05 13:09:58 +0100
commit1a81cf8399675056beef5e76be8a9380d88c4ebf (patch)
treeb3bed5105b65070fbcf811baebe59fa0c105531a /drivers/serial/serial_dw.c
parent7aa9748584227bd97b642f8127382c75df5f4730 (diff)
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dm: sunxi: Add support for serial using driver model
Add a driver for the designware serial UART used on sunxi. This just redirects to the normal ns16550 driver. Add a stdout-path to the device tree so that the correct UART is chosen. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/serial/serial_dw.c')
-rw-r--r--drivers/serial/serial_dw.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/serial/serial_dw.c b/drivers/serial/serial_dw.c
new file mode 100644
index 0000000..a348f29
--- /dev/null
+++ b/drivers/serial/serial_dw.c
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2014 Google, Inc
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <ns16550.h>
+#include <serial.h>
+
+static const struct udevice_id dw_serial_ids[] = {
+ { .compatible = "snps,dw-apb-uart" },
+ { }
+};
+
+static int dw_serial_ofdata_to_platdata(struct udevice *dev)
+{
+ struct ns16550_platdata *plat = dev_get_platdata(dev);
+ int ret;
+
+ ret = ns16550_serial_ofdata_to_platdata(dev);
+ if (ret)
+ return ret;
+ plat->clock = CONFIG_SYS_NS16550_CLK;
+
+ return 0;
+}
+
+U_BOOT_DRIVER(serial_ns16550) = {
+ .name = "serial_dw",
+ .id = UCLASS_SERIAL,
+ .of_match = dw_serial_ids,
+ .ofdata_to_platdata = dw_serial_ofdata_to_platdata,
+ .platdata_auto_alloc_size = sizeof(struct ns16550_platdata),
+ .priv_auto_alloc_size = sizeof(struct NS16550),
+ .probe = ns16550_serial_probe,
+ .ops = &ns16550_serial_ops,
+};