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linux/arch/arm/mach-s3c24xx/mach-vr1000.c
Linus Walleij f7f611f2b1 ARM: s3c24xx: leds: Convert to use GPIO descriptors 
This converts the s3c24xx LED driver to use GPIO descriptors
and also modify all board files to account for these changes
by registering the appropriate GPIO tables for each board.

The driver was using a custom flag to indicate open drain
(tristate) but this can be handled by standard descriptor
machine tables.

The driver was setting non-pull-up for the pin using the custom
S3C24xx GPIO API, but this is a custom pin control system used
by the S3C24xx and no generic GPIO function, so this has simply
been pushed back into the respective board files.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2020-07-09 09:56:14 +02:00

371 lines
8.8 KiB
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// SPDX-License-Identifier: GPL-2.0
//
// Copyright (c) 2003-2008 Simtec Electronics
// Ben Dooks <ben@simtec.co.uk>
//
// Machine support for Thorcom VR1000 board. Designed for Thorcom by
// Simtec Electronics, http://www.simtec.co.uk/
#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/dm9000.h>
#include <linux/i2c.h>
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/serial_8250.h>
#include <linux/serial_reg.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/irq.h>
#include <asm/mach-types.h>
#include <linux/platform_data/leds-s3c24xx.h>
#include <linux/platform_data/i2c-s3c2410.h>
#include <linux/platform_data/asoc-s3c24xx_simtec.h>
#include <mach/hardware.h>
#include <mach/regs-gpio.h>
#include <mach/gpio-samsung.h>
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/gpio-cfg.h>
#include <plat/samsung-time.h>
#include "bast.h"
#include "common.h"
#include "simtec.h"
#include "vr1000.h"
/* macros for virtual address mods for the io space entries */
#define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
#define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
#define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
#define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
/* macros to modify the physical addresses for io space */
#define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
#define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
#define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
#define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
static struct map_desc vr1000_iodesc[] __initdata = {
/* ISA IO areas */
{
.virtual = (u32)S3C24XX_VA_ISA_BYTE,
.pfn = PA_CS2(BAST_PA_ISAIO),
.length = SZ_16M,
.type = MT_DEVICE,
}, {
.virtual = (u32)S3C24XX_VA_ISA_WORD,
.pfn = PA_CS3(BAST_PA_ISAIO),
.length = SZ_16M,
.type = MT_DEVICE,
},
/* CPLD control registers, and external interrupt controls */
{
.virtual = (u32)VR1000_VA_CTRL1,
.pfn = __phys_to_pfn(VR1000_PA_CTRL1),
.length = SZ_1M,
.type = MT_DEVICE,
}, {
.virtual = (u32)VR1000_VA_CTRL2,
.pfn = __phys_to_pfn(VR1000_PA_CTRL2),
.length = SZ_1M,
.type = MT_DEVICE,
}, {
.virtual = (u32)VR1000_VA_CTRL3,
.pfn = __phys_to_pfn(VR1000_PA_CTRL3),
.length = SZ_1M,
.type = MT_DEVICE,
}, {
.virtual = (u32)VR1000_VA_CTRL4,
.pfn = __phys_to_pfn(VR1000_PA_CTRL4),
.length = SZ_1M,
.type = MT_DEVICE,
},
};
#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
[0] = {
.hwport = 0,
.flags = 0,
.ucon = UCON,
.ulcon = ULCON,
.ufcon = UFCON,
},
[1] = {
.hwport = 1,
.flags = 0,
.ucon = UCON,
.ulcon = ULCON,
.ufcon = UFCON,
},
/* port 2 is not actually used */
[2] = {
.hwport = 2,
.flags = 0,
.ucon = UCON,
.ulcon = ULCON,
.ufcon = UFCON,
}
};
/* definitions for the vr1000 extra 16550 serial ports */
#define VR1000_BAUDBASE (3692307)
#define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
static struct plat_serial8250_port serial_platform_data[] = {
[0] = {
.mapbase = VR1000_SERIAL_MAPBASE(0),
.irq = VR1000_IRQ_SERIAL + 0,
.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 0,
.uartclk = VR1000_BAUDBASE,
},
[1] = {
.mapbase = VR1000_SERIAL_MAPBASE(1),
.irq = VR1000_IRQ_SERIAL + 1,
.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 0,
.uartclk = VR1000_BAUDBASE,
},
[2] = {
.mapbase = VR1000_SERIAL_MAPBASE(2),
.irq = VR1000_IRQ_SERIAL + 2,
.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 0,
.uartclk = VR1000_BAUDBASE,
},
[3] = {
.mapbase = VR1000_SERIAL_MAPBASE(3),
.irq = VR1000_IRQ_SERIAL + 3,
.flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
.iotype = UPIO_MEM,
.regshift = 0,
.uartclk = VR1000_BAUDBASE,
},
{ },
};
static struct platform_device serial_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev = {
.platform_data = serial_platform_data,
},
};
/* DM9000 ethernet devices */
static struct resource vr1000_dm9k0_resource[] = {
[0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000, 4),
[1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x40, 0x40),
[2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000A, 1, NULL, IORESOURCE_IRQ \
| IORESOURCE_IRQ_HIGHLEVEL),
};
static struct resource vr1000_dm9k1_resource[] = {
[0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x80, 4),
[1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0, 0x40),
[2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000N, 1, NULL, IORESOURCE_IRQ \
| IORESOURCE_IRQ_HIGHLEVEL),
};
/* for the moment we limit ourselves to 16bit IO until some
* better IO routines can be written and tested
*/
static struct dm9000_plat_data vr1000_dm9k_platdata = {
.flags = DM9000_PLATF_16BITONLY,
};
static struct platform_device vr1000_dm9k0 = {
.name = "dm9000",
.id = 0,
.num_resources = ARRAY_SIZE(vr1000_dm9k0_resource),
.resource = vr1000_dm9k0_resource,
.dev = {
.platform_data = &vr1000_dm9k_platdata,
}
};
static struct platform_device vr1000_dm9k1 = {
.name = "dm9000",
.id = 1,
.num_resources = ARRAY_SIZE(vr1000_dm9k1_resource),
.resource = vr1000_dm9k1_resource,
.dev = {
.platform_data = &vr1000_dm9k_platdata,
}
};
/* LEDS */
static struct gpiod_lookup_table vr1000_led1_gpio_table = {
.dev_id = "s3c24xx_led.1",
.table = {
GPIO_LOOKUP("GPB", 0, NULL, GPIO_ACTIVE_HIGH),
{ },
},
};
static struct gpiod_lookup_table vr1000_led2_gpio_table = {
.dev_id = "s3c24xx_led.2",
.table = {
GPIO_LOOKUP("GPB", 1, NULL, GPIO_ACTIVE_HIGH),
{ },
},
};
static struct gpiod_lookup_table vr1000_led3_gpio_table = {
.dev_id = "s3c24xx_led.3",
.table = {
GPIO_LOOKUP("GPB", 2, NULL, GPIO_ACTIVE_HIGH),
{ },
},
};
static struct s3c24xx_led_platdata vr1000_led1_pdata = {
.name = "led1",
.def_trigger = "",
};
static struct s3c24xx_led_platdata vr1000_led2_pdata = {
.name = "led2",
.def_trigger = "",
};
static struct s3c24xx_led_platdata vr1000_led3_pdata = {
.name = "led3",
.def_trigger = "",
};
static struct platform_device vr1000_led1 = {
.name = "s3c24xx_led",
.id = 1,
.dev = {
.platform_data = &vr1000_led1_pdata,
},
};
static struct platform_device vr1000_led2 = {
.name = "s3c24xx_led",
.id = 2,
.dev = {
.platform_data = &vr1000_led2_pdata,
},
};
static struct platform_device vr1000_led3 = {
.name = "s3c24xx_led",
.id = 3,
.dev = {
.platform_data = &vr1000_led3_pdata,
},
};
/* I2C devices. */
static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
{
I2C_BOARD_INFO("tlv320aic23", 0x1a),
}, {
I2C_BOARD_INFO("tmp101", 0x48),
}, {
I2C_BOARD_INFO("m41st87", 0x68),
},
};
/* devices for this board */
static struct platform_device *vr1000_devices[] __initdata = {
&s3c2410_device_dclk,
&s3c_device_ohci,
&s3c_device_lcd,
&s3c_device_wdt,
&s3c_device_i2c0,
&s3c_device_adc,
&serial_device,
&vr1000_dm9k0,
&vr1000_dm9k1,
&vr1000_led1,
&vr1000_led2,
&vr1000_led3,
};
static void vr1000_power_off(void)
{
gpio_direction_output(S3C2410_GPB(9), 1);
}
static void __init vr1000_map_io(void)
{
pm_power_off = vr1000_power_off;
s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
}
static void __init vr1000_init_time(void)
{
s3c2410_init_clocks(12000000);
samsung_timer_init();
}
static void __init vr1000_init(void)
{
s3c_i2c0_set_platdata(NULL);
/* Disable pull-up on LED lines and register GPIO lookups */
s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_NONE);
s3c_gpio_setpull(S3C2410_GPB(2), S3C_GPIO_PULL_NONE);
gpiod_add_lookup_table(&vr1000_led1_gpio_table);
gpiod_add_lookup_table(&vr1000_led2_gpio_table);
gpiod_add_lookup_table(&vr1000_led3_gpio_table);
platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
i2c_register_board_info(0, vr1000_i2c_devs,
ARRAY_SIZE(vr1000_i2c_devs));
nor_simtec_init();
simtec_audio_add(NULL, true, NULL);
WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
}
MACHINE_START(VR1000, "Thorcom-VR1000")
/* Maintainer: Ben Dooks <ben@simtec.co.uk> */
.atag_offset = 0x100,
.map_io = vr1000_map_io,
.init_machine = vr1000_init,
.init_irq = s3c2410_init_irq,
.init_time = vr1000_init_time,
MACHINE_END
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