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serial_sh: Device Tree support

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Add Device Tree bindings.

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
This commit is contained in:
Yoshinori Sato 2016-04-18 16:51:04 +09:00 committed by Nobuhiro Iwamatsu
parent 59d07ee08e
commit 359787cfe4
2 changed files with 34 additions and 0 deletions
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6
doc/device-tree-bindings/serial/sh.txt Normal file
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@ -0,0 +1,6 @@
* Renesas SCI serial interface
Required properties:
- compatible: must be "renesas,scif" or "renesas,scifa"
- reg: exactly one register range with length
- clock: input clock frequency for the SCI unit

28
drivers/serial/serial_sh.c
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@ -17,6 +17,8 @@
#include <dm/platform_data/serial_sh.h>
#include "serial_sh.h"
DECLARE_GLOBAL_DATA_PTR;
#if defined(CONFIG_CPU_SH7760) || \
defined(CONFIG_CPU_SH7780) || \
defined(CONFIG_CPU_SH7785) || \
@ -201,9 +203,35 @@ static const struct dm_serial_ops sh_serial_ops = {
.setbrg = sh_serial_setbrg,
};
#ifdef CONFIG_OF_CONTROL
static const struct udevice_id sh_serial_id[] ={
{.compatible = "renesas,scif", .data = PORT_SCIF},
{.compatible = "renesas,scifa", .data = PORT_SCIFA},
{}
};
static int sh_serial_ofdata_to_platdata(struct udevice *dev)
{
struct sh_serial_platdata *plat = dev_get_platdata(dev);
fdt_addr_t addr;
addr = fdtdec_get_addr(gd->fdt_blob, dev->of_offset, "reg");
if (addr == FDT_ADDR_T_NONE)
return -EINVAL;
plat->base = addr;
plat->clk = fdtdec_get_int(gd->fdt_blob, dev->of_offset, "clock", 1);
plat->type = dev_get_driver_data(dev);
return 0;
}
#endif
U_BOOT_DRIVER(serial_sh) = {
.name = "serial_sh",
.id = UCLASS_SERIAL,
.of_match = of_match_ptr(sh_serial_id),
.ofdata_to_platdata = of_match_ptr(sh_serial_ofdata_to_platdata),
.platdata_auto_alloc_size = sizeof(struct sh_serial_platdata),
.probe = sh_serial_probe,
.ops = &sh_serial_ops,
.flags = DM_FLAG_PRE_RELOC,