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c78a41fc04
As a final bit of preparation for converting to ARCH_MULTIPLATFORM, change the interrupt handling for s3c24xx to use sparse IRQs. Since the number of possible interrupts is already fixed and relatively small per chip, just make it use all legacy interrupts preallocated using the .nr_irqs field in the machine descriptor, rather than actually allocating domains on the fly. Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
124 lines
2.9 KiB
C
124 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// Copyright (c) 2004 Nex Vision
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// Guillaume GOURAT <guillaume.gourat@nexvision.fr>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <linux/list.h>
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/serial_core.h>
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#include <linux/serial_s3c.h>
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#include <linux/platform_device.h>
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#include <linux/io.h>
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#include <linux/platform_data/i2c-s3c2410.h>
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#include <asm/irq.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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#include "gpio-samsung.h"
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#include "gpio-cfg.h"
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#include "cpu.h"
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#include "devs.h"
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#include "s3c24xx.h"
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#include "otom.h"
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static struct map_desc otom11_iodesc[] __initdata = {
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/* Device area */
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{ (u32)OTOM_VA_CS8900A_BASE, OTOM_PA_CS8900A_BASE, SZ_16M, MT_DEVICE },
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};
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#define UCON S3C2410_UCON_DEFAULT
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#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
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#define UFCON S3C2410_UFCON_RXTRIG12 | S3C2410_UFCON_FIFOMODE
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static struct s3c2410_uartcfg otom11_uartcfgs[] __initdata = {
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[0] = {
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.hwport = 0,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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.ufcon = UFCON,
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},
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[1] = {
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.hwport = 1,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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.ufcon = UFCON,
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},
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/* port 2 is not actually used */
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[2] = {
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.hwport = 2,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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.ufcon = UFCON,
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}
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};
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/* NOR Flash on NexVision OTOM board */
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static struct resource otom_nor_resource[] = {
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[0] = DEFINE_RES_MEM(S3C2410_CS0, SZ_4M),
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};
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static struct platform_device otom_device_nor = {
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.name = "mtd-flash",
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.id = -1,
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.num_resources = ARRAY_SIZE(otom_nor_resource),
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.resource = otom_nor_resource,
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};
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/* Standard OTOM devices */
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static struct platform_device *otom11_devices[] __initdata = {
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&s3c_device_ohci,
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&s3c_device_lcd,
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&s3c_device_wdt,
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&s3c_device_i2c0,
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&s3c_device_iis,
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&s3c_device_rtc,
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&otom_device_nor,
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};
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static void __init otom11_map_io(void)
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{
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s3c24xx_init_io(otom11_iodesc, ARRAY_SIZE(otom11_iodesc));
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s3c24xx_init_uarts(otom11_uartcfgs, ARRAY_SIZE(otom11_uartcfgs));
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s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
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}
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static void __init otom11_init_time(void)
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{
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s3c2410_init_clocks(12000000);
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s3c24xx_timer_init();
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}
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static void __init otom11_init(void)
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{
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s3c_i2c0_set_platdata(NULL);
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/* Configure the I2S pins (GPE0...GPE4) in correct mode */
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s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
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S3C_GPIO_PULL_NONE);
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platform_add_devices(otom11_devices, ARRAY_SIZE(otom11_devices));
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}
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MACHINE_START(OTOM, "Nex Vision - Otom 1.1")
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/* Maintainer: Guillaume GOURAT <guillaume.gourat@nexvision.tv> */
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.atag_offset = 0x100,
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.nr_irqs = NR_IRQS_S3C2410,
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.map_io = otom11_map_io,
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.init_machine = otom11_init,
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.init_irq = s3c2410_init_irq,
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.init_time = otom11_init_time,
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MACHINE_END
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