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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>
90 lines
2.2 KiB
C
90 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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//
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// Copyright 2008 Simtec Electronics
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// Ben Dooks <ben@simtec.co.uk>
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// http://armlinux.simtec.co.uk/
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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/i2c.h>
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#include <linux/io.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 "irqs.h"
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#include "map.h"
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#include "devs.h"
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#include "cpu.h"
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#include <linux/platform_data/i2c-s3c2410.h>
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#include "gpio-samsung.h"
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#include "s3c64xx.h"
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#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
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#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
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#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
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static struct s3c2410_uartcfg smdk6400_uartcfgs[] __initdata = {
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[0] = {
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.hwport = 0,
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.flags = 0,
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.ucon = 0x3c5,
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.ulcon = 0x03,
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.ufcon = 0x51,
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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 = 0x3c5,
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.ulcon = 0x03,
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.ufcon = 0x51,
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},
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};
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static struct map_desc smdk6400_iodesc[] = {};
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static void __init smdk6400_map_io(void)
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{
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s3c64xx_init_io(smdk6400_iodesc, ARRAY_SIZE(smdk6400_iodesc));
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s3c64xx_set_xtal_freq(12000000);
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s3c24xx_init_uarts(smdk6400_uartcfgs, ARRAY_SIZE(smdk6400_uartcfgs));
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s3c64xx_set_timer_source(S3C64XX_PWM3, S3C64XX_PWM4);
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}
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static struct platform_device *smdk6400_devices[] __initdata = {
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&s3c_device_hsmmc1,
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&s3c_device_i2c0,
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};
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static struct i2c_board_info i2c_devs[] __initdata = {
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{ I2C_BOARD_INFO("wm8753", 0x1A), },
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{ I2C_BOARD_INFO("24c08", 0x50), },
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};
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static void __init smdk6400_machine_init(void)
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{
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i2c_register_board_info(0, i2c_devs, ARRAY_SIZE(i2c_devs));
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platform_add_devices(smdk6400_devices, ARRAY_SIZE(smdk6400_devices));
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}
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MACHINE_START(SMDK6400, "SMDK6400")
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/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
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.atag_offset = 0x100,
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.nr_irqs = S3C64XX_NR_IRQS,
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.init_irq = s3c6400_init_irq,
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.map_io = smdk6400_map_io,
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.init_machine = smdk6400_machine_init,
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.init_time = s3c64xx_timer_init,
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MACHINE_END
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