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[U-Boot,v2,14/19] powerpc: Add serial driver for driver model

Message ID 1423335112-24585-15-git-send-email-sjg@chromium.org
State Accepted
Delegated to: Simon Glass
Headers show

Commit Message

Simon Glass Feb. 7, 2015, 6:51 p.m. UTC 
This uses the ns16550 driver but sets up the clock at run-time. It does
not seem to be available in the device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
---

Changes in v2: None

 drivers/serial/Makefile     |  1 +
 drivers/serial/serial_ppc.c | 40 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+)
 create mode 100644 drivers/serial/serial_ppc.c

Comments

Simon Glass Feb. 11, 2015, 7:41 p.m. UTC | #1 
On 7 February 2015 at 11:51, Simon Glass <sjg@chromium.org> wrote:
> This uses the ns16550 driver but sets up the clock at run-time. It does
> not seem to be available in the device tree.
>
> Signed-off-by: Simon Glass <sjg@chromium.org>
> ---
>
> Changes in v2: None
>
>  drivers/serial/Makefile     |  1 +
>  drivers/serial/serial_ppc.c | 40 ++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 41 insertions(+)
>  create mode 100644 drivers/serial/serial_ppc.c

Applied to u-boot-dm.
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Patch

diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index 4cc00cd..63b0cbf 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -8,6 +8,7 @@ 
 ifdef CONFIG_DM_SERIAL
 obj-y += serial-uclass.o
 obj-$(CONFIG_PL01X_SERIAL) += serial_pl01x.o
+obj-$(CONFIG_PPC) += serial_ppc.o
 else
 obj-y += serial.o
 obj-$(CONFIG_PL010_SERIAL) += serial_pl01x.o
diff --git a/drivers/serial/serial_ppc.c b/drivers/serial/serial_ppc.c
new file mode 100644
index 0000000..47141c6
--- /dev/null
+++ b/drivers/serial/serial_ppc.c
@@ -0,0 +1,40 @@ 
+/*
+ * 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 ppc_serial_ids[] = {
+	{ .compatible = "ns16550" },
+	{ }
+};
+
+static int ppc_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 = get_serial_clock();
+
+	return 0;
+}
+
+U_BOOT_DRIVER(serial_ns16550) = {
+	.name	= "serial_ppc",
+	.id	= UCLASS_SERIAL,
+	.of_match = ppc_serial_ids,
+	.ofdata_to_platdata = ppc_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,
+	.flags	= DM_FLAG_PRE_RELOC,
+};