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>
158 lines
3.8 KiB
C
158 lines
3.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
//
|
|
// Copyright (c) 2007 TinCanTools
|
|
// David Anders <danders@amltd.com>
|
|
//
|
|
// @History:
|
|
// derived from linux/arch/arm/mach-s3c2410/mach-bast.c, written by
|
|
// Ben Dooks <ben@simtec.co.uk>
|
|
|
|
#include <linux/gpio/machine.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/types.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/list.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/init.h>
|
|
#include <linux/device.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/serial_core.h>
|
|
#include <linux/serial_s3c.h>
|
|
#include <linux/io.h>
|
|
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/map.h>
|
|
#include <asm/mach/irq.h>
|
|
#include <asm/mach/flash.h>
|
|
|
|
#include <asm/irq.h>
|
|
#include <asm/mach-types.h>
|
|
|
|
#include <linux/platform_data/i2c-s3c2410.h>
|
|
#include "devs.h"
|
|
#include "cpu.h"
|
|
|
|
#include <linux/mtd/mtd.h>
|
|
#include <linux/mtd/partitions.h>
|
|
#include <linux/mtd/map.h>
|
|
#include <linux/mtd/physmap.h>
|
|
|
|
#include "s3c24xx.h"
|
|
|
|
static struct resource tct_hammer_nor_resource =
|
|
DEFINE_RES_MEM(0x00000000, SZ_16M);
|
|
|
|
static struct mtd_partition tct_hammer_mtd_partitions[] = {
|
|
{
|
|
.name = "System",
|
|
.size = 0x240000,
|
|
.offset = 0,
|
|
.mask_flags = MTD_WRITEABLE, /* force read-only */
|
|
}, {
|
|
.name = "JFFS2",
|
|
.size = MTDPART_SIZ_FULL,
|
|
.offset = MTDPART_OFS_APPEND,
|
|
}
|
|
};
|
|
|
|
static struct physmap_flash_data tct_hammer_flash_data = {
|
|
.width = 2,
|
|
.parts = tct_hammer_mtd_partitions,
|
|
.nr_parts = ARRAY_SIZE(tct_hammer_mtd_partitions),
|
|
};
|
|
|
|
static struct platform_device tct_hammer_device_nor = {
|
|
.name = "physmap-flash",
|
|
.id = 0,
|
|
.dev = {
|
|
.platform_data = &tct_hammer_flash_data,
|
|
},
|
|
.num_resources = 1,
|
|
.resource = &tct_hammer_nor_resource,
|
|
};
|
|
|
|
static struct map_desc tct_hammer_iodesc[] __initdata = {
|
|
};
|
|
|
|
#define UCON S3C2410_UCON_DEFAULT
|
|
#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
|
|
#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
|
|
|
|
static struct s3c2410_uartcfg tct_hammer_uartcfgs[] = {
|
|
[0] = {
|
|
.hwport = 0,
|
|
.flags = 0,
|
|
.ucon = UCON,
|
|
.ulcon = ULCON,
|
|
.ufcon = UFCON,
|
|
},
|
|
[1] = {
|
|
.hwport = 1,
|
|
.flags = 0,
|
|
.ucon = UCON,
|
|
.ulcon = ULCON,
|
|
.ufcon = UFCON,
|
|
},
|
|
[2] = {
|
|
.hwport = 2,
|
|
.flags = 0,
|
|
.ucon = UCON,
|
|
.ulcon = ULCON,
|
|
.ufcon = UFCON,
|
|
}
|
|
};
|
|
|
|
static struct gpiod_lookup_table tct_hammer_mmc_gpio_table = {
|
|
.dev_id = "s3c2410-sdi",
|
|
.table = {
|
|
/* bus pins */
|
|
GPIO_LOOKUP_IDX("GPIOE", 5, "bus", 0, GPIO_ACTIVE_HIGH),
|
|
GPIO_LOOKUP_IDX("GPIOE", 6, "bus", 1, GPIO_ACTIVE_HIGH),
|
|
GPIO_LOOKUP_IDX("GPIOE", 7, "bus", 2, GPIO_ACTIVE_HIGH),
|
|
GPIO_LOOKUP_IDX("GPIOE", 8, "bus", 3, GPIO_ACTIVE_HIGH),
|
|
GPIO_LOOKUP_IDX("GPIOE", 9, "bus", 4, GPIO_ACTIVE_HIGH),
|
|
GPIO_LOOKUP_IDX("GPIOE", 10, "bus", 5, GPIO_ACTIVE_HIGH),
|
|
{ },
|
|
},
|
|
};
|
|
|
|
static struct platform_device *tct_hammer_devices[] __initdata = {
|
|
&s3c_device_adc,
|
|
&s3c_device_wdt,
|
|
&s3c_device_i2c0,
|
|
&s3c_device_ohci,
|
|
&s3c_device_rtc,
|
|
&s3c_device_usbgadget,
|
|
&s3c_device_sdi,
|
|
&tct_hammer_device_nor,
|
|
};
|
|
|
|
static void __init tct_hammer_map_io(void)
|
|
{
|
|
s3c24xx_init_io(tct_hammer_iodesc, ARRAY_SIZE(tct_hammer_iodesc));
|
|
s3c24xx_init_uarts(tct_hammer_uartcfgs, ARRAY_SIZE(tct_hammer_uartcfgs));
|
|
s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
|
|
}
|
|
|
|
static void __init tct_hammer_init_time(void)
|
|
{
|
|
s3c2410_init_clocks(12000000);
|
|
s3c24xx_timer_init();
|
|
}
|
|
|
|
static void __init tct_hammer_init(void)
|
|
{
|
|
s3c_i2c0_set_platdata(NULL);
|
|
gpiod_add_lookup_table(&tct_hammer_mmc_gpio_table);
|
|
platform_add_devices(tct_hammer_devices, ARRAY_SIZE(tct_hammer_devices));
|
|
}
|
|
|
|
MACHINE_START(TCT_HAMMER, "TCT_HAMMER")
|
|
.atag_offset = 0x100,
|
|
.nr_irqs = NR_IRQS_S3C2410,
|
|
.map_io = tct_hammer_map_io,
|
|
.init_irq = s3c2410_init_irq,
|
|
.init_machine = tct_hammer_init,
|
|
.init_time = tct_hammer_init_time,
|
|
MACHINE_END
|