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linux-stable/arch/arm/mach-s3c/mach-qt2410.c
Arnd Bergmann c78a41fc04 ARM: s3c24xx: convert to sparse-irq 
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>
2022-04-07 09:31:31 +02:00

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// SPDX-License-Identifier: GPL-2.0+
//
// Copyright (C) 2006 by OpenMoko, Inc.
// Author: Harald Welte <laforge@openmoko.org>
// All rights reserved.
#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/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/serial_core.h>
#include <linux/serial_s3c.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi_gpio.h>
#include <linux/io.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/rawnand.h>
#include <linux/mtd/nand-ecc-sw-hamming.h>
#include <linux/mtd/partitions.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <asm/irq.h>
#include <asm/mach-types.h>
#include <linux/platform_data/leds-s3c24xx.h>
#include <linux/platform_data/fb-s3c2410.h>
#include <linux/platform_data/mtd-nand-s3c2410.h>
#include <linux/platform_data/usb-s3c2410_udc.h>
#include <linux/platform_data/i2c-s3c2410.h>
#include "gpio-samsung.h"
#include "gpio-cfg.h"
#include "devs.h"
#include "cpu.h"
#include "pm.h"
#include "s3c24xx.h"
#include "common-smdk-s3c24xx.h"
static struct map_desc qt2410_iodesc[] __initdata = {
{ 0xe0000000, __phys_to_pfn(S3C2410_CS3+0x01000000), SZ_1M, MT_DEVICE }
};
#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 smdk2410_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,
}
};
/* LCD driver info */
static struct s3c2410fb_display qt2410_lcd_cfg[] __initdata = {
{
/* Configuration for 640x480 SHARP LQ080V3DG01 */
.lcdcon5 = S3C2410_LCDCON5_FRM565 |
S3C2410_LCDCON5_INVVLINE |
S3C2410_LCDCON5_INVVFRAME |
S3C2410_LCDCON5_PWREN |
S3C2410_LCDCON5_HWSWP,
.type = S3C2410_LCDCON1_TFT,
.width = 640,
.height = 480,
.pixclock = 40000, /* HCLK/4 */
.xres = 640,
.yres = 480,
.bpp = 16,
.left_margin = 44,
.right_margin = 116,
.hsync_len = 96,
.upper_margin = 19,
.lower_margin = 11,
.vsync_len = 15,
},
{
/* Configuration for 480x640 toppoly TD028TTEC1 */
.lcdcon5 = S3C2410_LCDCON5_FRM565 |
S3C2410_LCDCON5_INVVLINE |
S3C2410_LCDCON5_INVVFRAME |
S3C2410_LCDCON5_PWREN |
S3C2410_LCDCON5_HWSWP,
.type = S3C2410_LCDCON1_TFT,
.width = 480,
.height = 640,
.pixclock = 40000, /* HCLK/4 */
.xres = 480,
.yres = 640,
.bpp = 16,
.left_margin = 8,
.right_margin = 24,
.hsync_len = 8,
.upper_margin = 2,
.lower_margin = 4,
.vsync_len = 2,
},
{
/* Config for 240x320 LCD */
.lcdcon5 = S3C2410_LCDCON5_FRM565 |
S3C2410_LCDCON5_INVVLINE |
S3C2410_LCDCON5_INVVFRAME |
S3C2410_LCDCON5_PWREN |
S3C2410_LCDCON5_HWSWP,
.type = S3C2410_LCDCON1_TFT,
.width = 240,
.height = 320,
.pixclock = 100000, /* HCLK/10 */
.xres = 240,
.yres = 320,
.bpp = 16,
.left_margin = 13,
.right_margin = 8,
.hsync_len = 4,
.upper_margin = 2,
.lower_margin = 7,
.vsync_len = 4,
},
};
static struct s3c2410fb_mach_info qt2410_fb_info __initdata = {
.displays = qt2410_lcd_cfg,
.num_displays = ARRAY_SIZE(qt2410_lcd_cfg),
.default_display = 0,
.lpcsel = ((0xCE6) & ~7) | 1<<4,
};
/* CS8900 */
static struct resource qt2410_cs89x0_resources[] = {
[0] = DEFINE_RES_MEM(0x19000000, 17),
[1] = DEFINE_RES_IRQ(IRQ_EINT9),
};
static struct platform_device qt2410_cs89x0 = {
.name = "cirrus-cs89x0",
.num_resources = ARRAY_SIZE(qt2410_cs89x0_resources),
.resource = qt2410_cs89x0_resources,
};
/* LED */
static struct gpiod_lookup_table qt2410_led_gpio_table = {
.dev_id = "s3c24xx_led.0",
.table = {
GPIO_LOOKUP("GPB", 0, NULL, GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN),
{ },
},
};
static struct s3c24xx_led_platdata qt2410_pdata_led = {
.name = "led",
.def_trigger = "timer",
};
static struct platform_device qt2410_led = {
.name = "s3c24xx_led",
.id = 0,
.dev = {
.platform_data = &qt2410_pdata_led,
},
};
/* SPI */
static struct spi_gpio_platform_data spi_gpio_cfg = {
.num_chipselect = 1,
};
static struct platform_device qt2410_spi = {
.name = "spi_gpio",
.id = 1,
.dev.platform_data = &spi_gpio_cfg,
};
static struct gpiod_lookup_table qt2410_spi_gpiod_table = {
.dev_id = "spi_gpio",
.table = {
GPIO_LOOKUP("GPIOG", 7,
"sck", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("GPIOG", 6,
"mosi", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("GPIOG", 5,
"miso", GPIO_ACTIVE_HIGH),
GPIO_LOOKUP("GPIOB", 5,
"cs", GPIO_ACTIVE_HIGH),
{ },
},
};
static struct gpiod_lookup_table qt2410_mmc_gpiod_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),
{ },
},
};
/* Board devices */
static struct platform_device *qt2410_devices[] __initdata = {
&s3c_device_ohci,
&s3c_device_lcd,
&s3c_device_wdt,
&s3c_device_i2c0,
&s3c_device_iis,
&s3c_device_sdi,
&s3c_device_usbgadget,
&qt2410_spi,
&qt2410_cs89x0,
&qt2410_led,
};
static struct mtd_partition __initdata qt2410_nand_part[] = {
[0] = {
.name = "U-Boot",
.size = 0x30000,
.offset = 0,
},
[1] = {
.name = "U-Boot environment",
.offset = 0x30000,
.size = 0x4000,
},
[2] = {
.name = "kernel",
.offset = 0x34000,
.size = SZ_2M,
},
[3] = {
.name = "initrd",
.offset = 0x234000,
.size = SZ_4M,
},
[4] = {
.name = "jffs2",
.offset = 0x634000,
.size = 0x39cc000,
},
};
static struct s3c2410_nand_set __initdata qt2410_nand_sets[] = {
[0] = {
.name = "NAND",
.nr_chips = 1,
.nr_partitions = ARRAY_SIZE(qt2410_nand_part),
.partitions = qt2410_nand_part,
},
};
/* choose a set of timings which should suit most 512Mbit
* chips and beyond.
*/
static struct s3c2410_platform_nand __initdata qt2410_nand_info = {
.tacls = 20,
.twrph0 = 60,
.twrph1 = 20,
.nr_sets = ARRAY_SIZE(qt2410_nand_sets),
.sets = qt2410_nand_sets,
.engine_type = NAND_ECC_ENGINE_TYPE_SOFT,
};
/* UDC */
static struct s3c2410_udc_mach_info qt2410_udc_cfg = {
};
static char tft_type = 's';
static int __init qt2410_tft_setup(char *str)
{
tft_type = str[0];
return 1;
}
__setup("tft=", qt2410_tft_setup);
static void __init qt2410_map_io(void)
{
s3c24xx_init_io(qt2410_iodesc, ARRAY_SIZE(qt2410_iodesc));
s3c24xx_init_uarts(smdk2410_uartcfgs, ARRAY_SIZE(smdk2410_uartcfgs));
s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
}
static void __init qt2410_init_time(void)
{
s3c2410_init_clocks(12000000);
s3c24xx_timer_init();
}
static void __init qt2410_machine_init(void)
{
s3c_nand_set_platdata(&qt2410_nand_info);
switch (tft_type) {
case 'p': /* production */
qt2410_fb_info.default_display = 1;
break;
case 'b': /* big */
qt2410_fb_info.default_display = 0;
break;
case 's': /* small */
default:
qt2410_fb_info.default_display = 2;
break;
}
s3c24xx_fb_set_platdata(&qt2410_fb_info);
/* set initial state of the LED GPIO */
WARN_ON(gpio_request_one(S3C2410_GPB(0), GPIOF_OUT_INIT_HIGH, NULL));
gpio_free(S3C2410_GPB(0));
s3c24xx_udc_set_platdata(&qt2410_udc_cfg);
s3c_i2c0_set_platdata(NULL);
/* Configure the I2S pins (GPE0...GPE4) in correct mode */
s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
S3C_GPIO_PULL_NONE);
gpiod_add_lookup_table(&qt2410_spi_gpiod_table);
s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
gpiod_add_lookup_table(&qt2410_led_gpio_table);
gpiod_add_lookup_table(&qt2410_mmc_gpiod_table);
platform_add_devices(qt2410_devices, ARRAY_SIZE(qt2410_devices));
s3c_pm_init();
}
MACHINE_START(QT2410, "QT2410")
.atag_offset = 0x100,
.nr_irqs = NR_IRQS_S3C2410,
.map_io = qt2410_map_io,
.init_irq = s3c2410_init_irq,
.init_machine = qt2410_machine_init,
.init_time = qt2410_init_time,
MACHINE_END
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