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Commit 0241cbb9 authored by Ben Dooks's avatar Ben Dooks
Browse files

[ARM] S3C64XX: Add UARTdevice definitions 



Add resources and information for the UART deviecs
on the S3C64XX CPUs.

Signed-off-by: default avatarBen Dooks <ben-linux@fluff.org>
parent e1a2bd1d

arch/arm/plat-s3c/include/plat/devs.h

+1 −0
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ struct s3c24xx_uart_resources { 
};



extern struct s3c24xx_uart_resources s3c2410_uart_resources[];

extern struct s3c24xx_uart_resources s3c64xx_uart_resources[];



extern struct platform_device *s3c24xx_uart_devs[];

extern struct platform_device *s3c24xx_uart_src[];

arch/arm/plat-s3c64xx/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -11,3 +11,5 @@ obj-n := dummy.o 
obj-				:=



# Core files



obj-y				+= dev-uart.o

arch/arm/plat-s3c64xx/dev-uart.c

0 → 100644
+176 −0
Original line number Diff line number Diff line 
/* linux/arch/arm/plat-s3c64xx/dev-uart.c

 *

 * Copyright 2008 Openmoko, Inc.

 * Copyright 2008 Simtec Electronics

 *	Ben Dooks <ben@simtec.co.uk>

 *	http://armlinux.simtec.co.uk/

 *

 * Base S3C64XX UART resource and device definitions

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

*/



#include <linux/kernel.h>

#include <linux/types.h>

#include <linux/interrupt.h>

#include <linux/list.h>

#include <linux/platform_device.h>



#include <asm/mach/arch.h>

#include <asm/mach/irq.h>

#include <mach/hardware.h>

#include <mach/map.h>



#include <plat/devs.h>



/* Serial port registrations */



/* 64xx uarts are closer together */



static struct resource s3c64xx_uart0_resource[] = {

	[0] = {

		.start	= S3C_PA_UART0,

		.end	= S3C_PA_UART0 + 0x100,

		.flags	= IORESOURCE_MEM,

	},

	[1] = {

		.start	= IRQ_S3CUART_RX0,

		.end	= IRQ_S3CUART_RX0,

		.flags	= IORESOURCE_IRQ,

	},

	[2] = {

		.start	= IRQ_S3CUART_TX0,

		.end	= IRQ_S3CUART_TX0,

		.flags	= IORESOURCE_IRQ,



	},

	[3] = {

		.start	= IRQ_S3CUART_ERR0,

		.end	= IRQ_S3CUART_ERR0,

		.flags	= IORESOURCE_IRQ,

	}

};



static struct resource s3c64xx_uart1_resource[] = {

	[0] = {

		.start = S3C_PA_UART1,

		.end   = S3C_PA_UART1 + 0x100,

		.flags = IORESOURCE_MEM,

	},

	[1] = {

		.start	= IRQ_S3CUART_RX1,

		.end	= IRQ_S3CUART_RX1,

		.flags	= IORESOURCE_IRQ,

	},

	[2] = {

		.start	= IRQ_S3CUART_TX1,

		.end	= IRQ_S3CUART_TX1,

		.flags	= IORESOURCE_IRQ,



	},

	[3] = {

		.start	= IRQ_S3CUART_ERR1,

		.end	= IRQ_S3CUART_ERR1,

		.flags	= IORESOURCE_IRQ,

	},

};



static struct resource s3c6xx_uart2_resource[] = {

	[0] = {

		.start = S3C_PA_UART2,

		.end   = S3C_PA_UART2 + 0x100,

		.flags = IORESOURCE_MEM,

	},

	[1] = {

		.start	= IRQ_S3CUART_RX2,

		.end	= IRQ_S3CUART_RX2,

		.flags	= IORESOURCE_IRQ,

	},

	[2] = {

		.start	= IRQ_S3CUART_TX2,

		.end	= IRQ_S3CUART_TX2,

		.flags	= IORESOURCE_IRQ,



	},

	[3] = {

		.start	= IRQ_S3CUART_ERR2,

		.end	= IRQ_S3CUART_ERR2,

		.flags	= IORESOURCE_IRQ,

	},

};



static struct resource s3c64xx_uart3_resource[] = {

	[0] = {

		.start = S3C_PA_UART3,

		.end   = S3C_PA_UART3 + 0x100,

		.flags = IORESOURCE_MEM,

	},

	[1] = {

		.start	= IRQ_S3CUART_RX3,

		.end	= IRQ_S3CUART_RX3,

		.flags	= IORESOURCE_IRQ,

	},

	[2] = {

		.start	= IRQ_S3CUART_TX3,

		.end	= IRQ_S3CUART_TX3,

		.flags	= IORESOURCE_IRQ,



	},

	[3] = {

		.start	= IRQ_S3CUART_ERR3,

		.end	= IRQ_S3CUART_ERR3,

		.flags	= IORESOURCE_IRQ,

	},

};





struct s3c24xx_uart_resources s3c64xx_uart_resources[] __initdata = {

	[0] = {

		.resources	= s3c64xx_uart0_resource,

		.nr_resources	= ARRAY_SIZE(s3c64xx_uart0_resource),

	},

	[1] = {

		.resources	= s3c64xx_uart1_resource,

		.nr_resources	= ARRAY_SIZE(s3c64xx_uart1_resource),

	},

	[2] = {

		.resources	= s3c6xx_uart2_resource,

		.nr_resources	= ARRAY_SIZE(s3c6xx_uart2_resource),

	},

	[3] = {

		.resources	= s3c64xx_uart3_resource,

		.nr_resources	= ARRAY_SIZE(s3c64xx_uart3_resource),

	},

};



/* uart devices */



static struct platform_device s3c24xx_uart_device0 = {

	.id		= 0,

};



static struct platform_device s3c24xx_uart_device1 = {

	.id		= 1,

};



static struct platform_device s3c24xx_uart_device2 = {

	.id		= 2,

};



static struct platform_device s3c24xx_uart_device3 = {

	.id		= 3,

};



struct platform_device *s3c24xx_uart_src[4] = {

	&s3c24xx_uart_device0,

	&s3c24xx_uart_device1,

	&s3c24xx_uart_device2,

	&s3c24xx_uart_device3,

};



struct platform_device *s3c24xx_uart_devs[4] = {

};

arch/arm/plat-s3c64xx/include/plat/irqs.h

+34 −1
Original line number Diff line number Diff line
@@ -15,12 +15,45 @@ 
 * the ISA space, so that the PC104 has them to itself

 * and we don't end up having to do horrible things to the

 * standard ISA drivers....

 *

 * note, since we're using the VICs, our start must be a

 * mulitple of 32 to allow the common code to work

 */



#define S3C_IRQ_OFFSET	(16)

#define S3C_IRQ_OFFSET	(32)



#define S3C_IRQ(x)	((x) + S3C_IRQ_OFFSET)



/* UART interrupts, each UART has 4 intterupts per channel so

 * use the space between the ISA and S3C main interrupts. Note, these

 * are not in the same order as the S3C24XX series! */



#define IRQ_S3CUART_BASE0	(16)

#define IRQ_S3CUART_BASE1	(20)

#define IRQ_S3CUART_BASE2	(24)

#define IRQ_S3CUART_BASE3	(28)



#define UART_IRQ_RXD		(0)

#define UART_IRQ_ERR		(1)

#define UART_IRQ_TXD		(2)

#define UART_IRQ_MODEM		(3)



#define IRQ_S3CUART_RX0		(IRQ_S3CUART_BASE0 + UART_IRQ_RXD)

#define IRQ_S3CUART_TX0		(IRQ_S3CUART_BASE0 + UART_IRQ_TXD)

#define IRQ_S3CUART_ERR0	(IRQ_S3CUART_BASE0 + UART_IRQ_ERR)



#define IRQ_S3CUART_RX1		(IRQ_S3CUART_BASE1 + UART_IRQ_RXD)

#define IRQ_S3CUART_TX1		(IRQ_S3CUART_BASE1 + UART_IRQ_TXD)

#define IRQ_S3CUART_ERR1	(IRQ_S3CUART_BASE1 + UART_IRQ_ERR)



#define IRQ_S3CUART_RX2		(IRQ_S3CUART_BASE2 + UART_IRQ_RXD)

#define IRQ_S3CUART_TX2		(IRQ_S3CUART_BASE2 + UART_IRQ_TXD)

#define IRQ_S3CUART_ERR2	(IRQ_S3CUART_BASE2 + UART_IRQ_ERR)



#define IRQ_S3CUART_RX3		(IRQ_S3CUART_BASE3 + UART_IRQ_RXD)

#define IRQ_S3CUART_TX3		(IRQ_S3CUART_BASE3 + UART_IRQ_TXD)

#define IRQ_S3CUART_ERR3	(IRQ_S3CUART_BASE3 + UART_IRQ_ERR)



/* Since the IRQ_EINT(x) are a linear mapping on current s3c64xx series

 * we just defined them as an IRQ_EINT(x) macro from S3C_IRQ_EINT_BASE

 * which we place after the pair of VICs. */