/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
 *
 * Copyright (C) 2009 Lemote, Inc.
 * Author: Yan hua (yanhua@lemote.com)
 * Author: Wu Zhangjin (wuzhangjin@gmail.com)
 */

#include <linux/io.h>
#include <linux/init.h>
#include <linux/serial_8250.h>
#include <gsc3280/gsc3280_regs.h>
#include <asm/bootinfo.h>

#include <loongson.h>
#include <machine.h>
#include <soc_soc_int.h>
#include <linux/clk.h>
int printf_raw(const char *fmt, ...);

#if 0
#define PORT(int)			\
{								\
	.irq		= int,					\
	.uartclk	= 1843200,				\
	.iotype		= UPIO_PORT,				\
	.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,	\
	.regshift	= 0,					\
}

#define UART0_CLK 5560000 
#define UART1_CLK 5560000 
#define UART2_CLK 5560000 
#define UART3_CLK 16670000 
#define UART4_CLK 16670000 
#define UART5_CLK 16670000 
#define UART6_CLK 5560000 
#define UART7_CLK 5560000 

#define PORT_M(int)				\
{								\
	.irq		= MIPS_CPU_IRQ_BASE + 8 + (int),		\
	.uartclk	= UART_CLK,	                               \
	.iotype		= UPIO_MEM,				\
	.flags		= UPF_BUGGY_UART | UPF_SKIP_TEST,	\
	.membase	= (void __iomem *)NULL,			\
	.regshift	= 0,					\
	.private_data =  &serial_data, \
}
#endif

//extern struct serial_platform_data serial_data;

int uart0=0;
int uart1=1;
int uart2=2;
int uart3=3;
int uart4=4;
int uart5=5;
int uart6=6;
int uart7=7;
//static const unsigned int U0_CLK=2*clk_get_rate(clk_get(NULL,"uart0"));
//#define  CLK0  (2*clk_get_rate(clk_get(NULL,"uart0")))





static struct plat_serial8250_port uart8250_uart0_data[]={
	{
		.membase= NULL,
		.mapbase=GSC3280_UART0_BASEADDR & 0x1fffffff,
		.irq =EXT_GSC3280_UART0_IRQ,
	//uartclk =2*clk_get_rate(clk_get(NULL,"uart0")),
		//.uartclk =11120000,
		.regshift = 0,
		.iotype = UPIO_MEM,
		.flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST|UPF_IOREMAP,
		.private_data =&uart0,
	  },
	{}
};

static struct plat_serial8250_port uart8250_uart1_data[]={
	{
		.membase= NULL,
		.mapbase=GSC3280_UART1_BASEADDR & 0x1fffffff,
		.irq =EXT_GSC3280_UART1_IRQ,
	//	.uartclk =5560000,
	//	.uartclk =11120000,
		.regshift = 0,
		.iotype = UPIO_MEM,
		.flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST|UPF_IOREMAP,
		.private_data=&uart1,
	//	.private_data =  &serial_data, 
	  },
	{}
};

static struct plat_serial8250_port uart8250_uart2_data[]={
	{
		.membase= NULL,
		.mapbase=GSC3280_UART2_BASEADDR & 0x1fffffff,
		.irq =EXT_GSC3280_UART2_IRQ,
	//.uartclk =5560000,
	//	.uartclk =11120000,
		.regshift = 0,
		.iotype = UPIO_MEM,
		.flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST|UPF_IOREMAP,
		.private_data=&uart2,
	//	.private_data =  &serial_data, 
	  },
	{}
};

static struct plat_serial8250_port uart8250_uart3_data[]={
	{
		.membase= NULL,
		.mapbase=GSC3280_UART3_BASEADDR & 0x1fffffff,
		.irq =EXT_GSC3280_UART3_IRQ,
		//.uartclk =16670000,
	//	.uartclk =33340000,
		.regshift = 0,
		.iotype = UPIO_MEM,
		.flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST|UPF_IOREMAP,
		.private_data=&uart3,
	//	.private_data =  &serial_data, 
	  },
	{}
};

static struct plat_serial8250_port uart8250_uart4_data[]={
	{
		.membase= NULL,
		.mapbase=GSC3280_UART4_BASEADDR & 0x1fffffff,
		//.uartclk =16670000,
		.irq =EXT_GSC3280_UART4_IRQ,
	//	.uartclk =33340000,
		.regshift = 0,
		.iotype = UPIO_MEM,
		.flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST|UPF_IOREMAP,
		.private_data=&uart4,
	//	.private_data =  &serial_data, 
	  },
	{}
};

static struct plat_serial8250_port uart8250_uart5_data[]={
	{
		.membase= NULL,
		.mapbase=GSC3280_UART5_BASEADDR & 0x1fffffff,
		.irq =EXT_GSC3280_UART5_IRQ,
		//.uartclk =16670000,
	//	.uartclk =33340000,
		.regshift = 0,
		.iotype = UPIO_MEM,
		.flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST|UPF_IOREMAP,
		.private_data=&uart5,
	//	.private_data =  &serial_data, 
	  },
	{}
};

static struct plat_serial8250_port uart8250_uart6_data[]={
	{
		.membase= NULL,
		.mapbase=GSC3280_UART6_BASEADDR & 0x1fffffff,
		.irq =EXT_GSC3280_UART6_IRQ,
		//.uartclk =921600,
		//.uartclk =463333,
	//	.uartclk =5560000,
		.regshift = 0,
		.iotype = UPIO_MEM,
		.flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST|UPF_IOREMAP,
		.private_data=&uart6,
	//	.private_data =  &serial_data, 
	  },
	{}
};

static struct plat_serial8250_port uart8250_uart7_data[]={
	{
		.membase= NULL,
		.mapbase=GSC3280_UART7_BASEADDR & 0x1fffffff,
		.irq =EXT_GSC3280_UART7_IRQ,
	//	.uartclk =5560000,
		.regshift = 0,
		.iotype = UPIO_MEM,
		.flags = UPF_BOOT_AUTOCONF | UPF_BUGGY_UART | UPF_SKIP_TEST|UPF_IOREMAP,
		.private_data=&uart7,
	//	.private_data =  &serial_data, 
	  },
	{}
};


static struct platform_device uart8250_uart0_device = {
	.name = "serial8250",
	.id = PLAT8250_DEV_PLATFORM,
	.dev={
		.platform_data=(void *)uart8250_uart0_data,
		}
};


static struct platform_device uart8250_uart1_device = {
	.name = "serial8250",
	.id = PLAT8250_DEV_PLATFORM1,
	.dev={
		.platform_data=(void *)uart8250_uart1_data,
		}
};

static struct platform_device uart8250_uart2_device = {
	.name = "serial8250",
	.id =PLAT8250_DEV_PLATFORM2,
	.dev={
		.platform_data=(void *)uart8250_uart2_data,
		}
};


static struct platform_device uart8250_uart3_device = {
	.name = "serial8250",
	.id = PLAT8250_DEV_PLATFORM3,
	.dev={
		.platform_data=(void *)uart8250_uart3_data,
		}
};

static struct platform_device uart8250_uart4_device = {
	.name = "serial8250",
	.id = PLAT8250_DEV_PLATFORM4,
	.dev={
		.platform_data=(void *)uart8250_uart4_data,
		}
};

static struct platform_device uart8250_uart5_device = {
	.name = "serial8250",
	.id =PLAT8250_DEV_PLATFORM5,
	.dev={
		.platform_data=(void *)uart8250_uart5_data,
		}
};

static struct platform_device uart8250_uart6_device = {
	.name = "serial8250",
	.id =PLAT8250_DEV_PLATFORM6,
	.dev={
		.platform_data=(void *)uart8250_uart6_data,
		}
};

static struct platform_device uart8250_uart7_device = {
	.name = "serial8250",
	.id =PLAT8250_DEV_PLATFORM7,
	.dev={
		.platform_data=(void *)uart8250_uart7_data,
		}
};

static int __init serial_init(void)
{
	platform_device_register(&uart8250_uart0_device);
	platform_device_register(&uart8250_uart1_device);
	platform_device_register(&uart8250_uart2_device);
	platform_device_register(&uart8250_uart3_device);
	platform_device_register(&uart8250_uart4_device);
	platform_device_register(&uart8250_uart5_device);
	platform_device_register(&uart8250_uart6_device);
	platform_device_register(&uart8250_uart7_device);
	return 0;
}

device_initcall(serial_init);