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/*
* arch/arm/plat-orion/common.c
*
* Marvell Orion SoC common setup code used by multiple mach-/common.c
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/serial_8250.h>
/* Fill in the resources structure and link it into the platform
device structure. There is always a memory region, and nearly
always an interrupt.*/
static void fill_resources(struct platform_device *device,
struct resource *resources,
resource_size_t mapbase,
resource_size_t size,
unsigned int irq)
{
device->resource = resources;
device->num_resources = 1;
resources[0].flags = IORESOURCE_MEM;
resources[0].start = mapbase;
resources[0].end = mapbase + size;
if (irq != NO_IRQ) {
device->num_resources++;
resources[1].flags = IORESOURCE_IRQ;
resources[1].start = irq;
resources[1].end = irq;
}
}
/*****************************************************************************
* UART
****************************************************************************/
static void __init uart_complete(
struct platform_device *orion_uart,
struct plat_serial8250_port *data,
struct resource *resources,
unsigned int membase,
resource_size_t mapbase,
unsigned int irq,
unsigned int uartclk)
{
data->mapbase = mapbase;
data->membase = (void __iomem *)membase;
data->irq = irq;
data->uartclk = uartclk;
orion_uart->dev.platform_data = data;
fill_resources(orion_uart, resources, mapbase, 0xff, irq);
platform_device_register(orion_uart);
}
/*****************************************************************************
* UART0
****************************************************************************/
static struct plat_serial8250_port orion_uart0_data[] = {
{
.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
.iotype = UPIO_MEM,
.regshift = 2,
}, {
},
};
static struct resource orion_uart0_resources[2];
static struct platform_device orion_uart0 = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
};
void __init orion_uart0_init(unsigned int membase,
resource_size_t mapbase,
unsigned int irq,
unsigned int uartclk)
{
uart_complete(&orion_uart0, orion_uart0_data, orion_uart0_resources,
membase, mapbase, irq, uartclk);
}
/*****************************************************************************
* UART1
****************************************************************************/
static struct plat_serial8250_port orion_uart1_data[] = {
{
.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
.iotype = UPIO_MEM,
.regshift = 2,
}, {
},
};
static struct resource orion_uart1_resources[2];
static struct platform_device orion_uart1 = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM1,
};
void __init orion_uart1_init(unsigned int membase,
resource_size_t mapbase,
unsigned int irq,
unsigned int uartclk)
{
uart_complete(&orion_uart1, orion_uart1_data, orion_uart1_resources,
membase, mapbase, irq, uartclk);
}
/*****************************************************************************
* UART2
****************************************************************************/
static struct plat_serial8250_port orion_uart2_data[] = {
{
.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
.iotype = UPIO_MEM,
.regshift = 2,
}, {
},
};
static struct resource orion_uart2_resources[2];
static struct platform_device orion_uart2 = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM2,
};
void __init orion_uart2_init(unsigned int membase,
resource_size_t mapbase,
unsigned int irq,
unsigned int uartclk)
{
uart_complete(&orion_uart2, orion_uart2_data, orion_uart2_resources,
membase, mapbase, irq, uartclk);
}
/*****************************************************************************
* UART3
****************************************************************************/
static struct plat_serial8250_port orion_uart3_data[] = {
{
.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF,
.iotype = UPIO_MEM,
.regshift = 2,
}, {
},
};
static struct resource orion_uart3_resources[2];
static struct platform_device orion_uart3 = {
.name = "serial8250",
.id = 3,
};
void __init orion_uart3_init(unsigned int membase,
resource_size_t mapbase,
unsigned int irq,
unsigned int uartclk)
{
uart_complete(&orion_uart3, orion_uart3_data, orion_uart3_resources,
membase, mapbase, irq, uartclk);
}
/*****************************************************************************
* SoC RTC
****************************************************************************/
static struct resource orion_rtc_resource[2];
void __init orion_rtc_init(unsigned long mapbase,
unsigned long irq)
{
orion_rtc_resource[0].start = mapbase;
orion_rtc_resource[0].end = mapbase + SZ_32 - 1;
orion_rtc_resource[0].flags = IORESOURCE_MEM;
orion_rtc_resource[1].start = irq;
orion_rtc_resource[1].end = irq;
orion_rtc_resource[1].flags = IORESOURCE_IRQ;
platform_device_register_simple("rtc-mv", -1, orion_rtc_resource, 2);
}
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