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dm: omap: serial: Add driver model support 

Add driver model support to this driver, while retaining support for the
legacy system. Driver model serial support is enabled with CONFIG_DM_SERIAL
as usual.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@ti.com>
This commit is contained in:
Simon Glass 2014-10-22 21:37:12 -06:00
parent 4119e06dd8
commit 0bf249511f
2 changed files with 48 additions and 0 deletions
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1
drivers/serial/Makefile
View File

@ -41,6 +41,7 @@ obj-$(CONFIG_MXS_AUART) += mxs_auart.o
obj-$(CONFIG_ARC_SERIAL) += serial_arc.o obj-$(CONFIG_ARC_SERIAL) += serial_arc.o
obj-$(CONFIG_TEGRA_SERIAL) += serial_tegra.o obj-$(CONFIG_TEGRA_SERIAL) += serial_tegra.o
obj-$(CONFIG_UNIPHIER_SERIAL) += serial_uniphier.o obj-$(CONFIG_UNIPHIER_SERIAL) += serial_uniphier.o
obj-$(CONFIG_OMAP_SERIAL) += serial_omap.o
ifndef CONFIG_SPL_BUILD ifndef CONFIG_SPL_BUILD
obj-$(CONFIG_USB_TTY) += usbtty.o obj-$(CONFIG_USB_TTY) += usbtty.o

47
drivers/serial/serial_omap.c Normal file
View File

@ -0,0 +1,47 @@
/*
* Copyright (c) 2014 Google, Inc
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm.h>
#include <fdtdec.h>
#include <ns16550.h>
#include <serial.h>
DECLARE_GLOBAL_DATA_PTR;
#ifdef CONFIG_OF_CONTROL
static const struct udevice_id omap_serial_ids[] = {
{ .compatible = "ti,omap3-uart" },
{ }
};
static int omap_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 = fdtdec_get_int(gd->fdt_blob, dev->of_offset,
"clock-frequency", -1);
plat->reg_shift = 2;
return 0;
}
#endif
U_BOOT_DRIVER(serial_omap_ns16550) = {
.name = "serial_omap",
.id = UCLASS_SERIAL,
.of_match = of_match_ptr(omap_serial_ids),
.ofdata_to_platdata = of_match_ptr(omap_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,
};