linux-stable/arch/arm/mach-s3c64xx/dev-uart.c
Arnd Bergmann ba27904456 ARM: s3c64xx: enable sparse IRQ support
This is another prerequisite for enabling multiplatform
support, and it is the part I am least certain about.

I assume it will cause the extra boot message "Cannot
allocate irq_descs @ IRQ%d, assuming pre-allocated" to
be printed, but otherwise work ok. This definitely needs
to be tested on real hardware to see if it works.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-12-01 21:50:24 +01:00

72 lines
1.8 KiB
C

/* 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 <mach/irqs.h>
#include <plat/devs.h>
/* Serial port registrations */
/* 64xx uarts are closer together */
static struct resource s3c64xx_uart0_resource[] = {
[0] = DEFINE_RES_MEM(S3C_PA_UART0, SZ_256),
[1] = DEFINE_RES_IRQ(IRQ_UART0),
};
static struct resource s3c64xx_uart1_resource[] = {
[0] = DEFINE_RES_MEM(S3C_PA_UART1, SZ_256),
[1] = DEFINE_RES_IRQ(IRQ_UART1),
};
static struct resource s3c6xx_uart2_resource[] = {
[0] = DEFINE_RES_MEM(S3C_PA_UART2, SZ_256),
[1] = DEFINE_RES_IRQ(IRQ_UART2),
};
static struct resource s3c64xx_uart3_resource[] = {
[0] = DEFINE_RES_MEM(S3C_PA_UART3, SZ_256),
[1] = DEFINE_RES_IRQ(IRQ_UART3),
};
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),
},
};