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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* NEC VR4100 series SIU platform device.
*
* Copyright (C) 2007-2008 Yoichi Yuasa <yuasa@linux-mips.org>
*/
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/ioport.h>
#include <linux/platform_device.h>
#include <linux/serial_core.h>
#include <linux/irq.h>
#include <asm/cpu.h>
#include <asm/vr41xx/siu.h>
static unsigned int siu_type1_ports[SIU_PORTS_MAX] __initdata = {
PORT_VR41XX_SIU,
PORT_UNKNOWN,
};
static struct resource siu_type1_resource[] __initdata = {
{
.start = 0x0c000000,
.end = 0x0c00000a,
.flags = IORESOURCE_MEM,
},
{
.start = SIU_IRQ,
.end = SIU_IRQ,
.flags = IORESOURCE_IRQ,
},
};
static unsigned int siu_type2_ports[SIU_PORTS_MAX] __initdata = {
PORT_VR41XX_SIU,
PORT_VR41XX_DSIU,
};
static struct resource siu_type2_resource[] __initdata = {
{
.start = 0x0f000800,
.end = 0x0f00080a,
.flags = IORESOURCE_MEM,
},
{
.start = 0x0f000820,
.end = 0x0f000829,
.flags = IORESOURCE_MEM,
},
{
.start = SIU_IRQ,
.end = SIU_IRQ,
.flags = IORESOURCE_IRQ,
},
{
.start = DSIU_IRQ,
.end = DSIU_IRQ,
.flags = IORESOURCE_IRQ,
},
};
static int __init vr41xx_siu_add(void)
{
struct platform_device *pdev;
struct resource *res;
unsigned int num;
int retval;
pdev = platform_device_alloc("SIU", -1);
if (!pdev)
return -ENOMEM;
switch (current_cpu_type()) {
case CPU_VR4111:
case CPU_VR4121:
pdev->dev.platform_data = siu_type1_ports;
res = siu_type1_resource;
num = ARRAY_SIZE(siu_type1_resource);
break;
case CPU_VR4122:
case CPU_VR4131:
case CPU_VR4133:
pdev->dev.platform_data = siu_type2_ports;
res = siu_type2_resource;
num = ARRAY_SIZE(siu_type2_resource);
break;
default:
retval = -ENODEV;
goto err_free_device;
}
retval = platform_device_add_resources(pdev, res, num);
if (retval)
goto err_free_device;
retval = platform_device_add(pdev);
if (retval)
goto err_free_device;
return 0;
err_free_device:
platform_device_put(pdev);
return retval;
}
device_initcall(vr41xx_siu_add);
void __init vr41xx_siu_setup(void)
{
struct uart_port port;
struct resource *res;
unsigned int *type;
int i;
switch (current_cpu_type()) {
case CPU_VR4111:
case CPU_VR4121:
type = siu_type1_ports;
res = siu_type1_resource;
break;
case CPU_VR4122:
case CPU_VR4131:
case CPU_VR4133:
type = siu_type2_ports;
res = siu_type2_resource;
break;
default:
return;
}
for (i = 0; i < SIU_PORTS_MAX; i++) {
port.line = i;
port.type = type[i];
if (port.type == PORT_UNKNOWN)
break;
port.mapbase = res[i].start;
port.membase = (unsigned char __iomem *)KSEG1ADDR(res[i].start);
vr41xx_siu_early_setup(&port);
}
}
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