forked from Minki/linux
a1342f6a9f
PWM timer initialization has two independent implementations - one for S3C24xx and one for S3C64xx. The naming however was always the same and before also the declaration was shared. This is confusing, error prone and might cause issues when trying to build multiplatform kernel. Suggested-by: Tomasz Figa <tomasz.figa@gmail.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Link: https://lore.kernel.org/r/20200820204203.22328-1-krzk@kernel.org
161 lines
3.8 KiB
C
161 lines
3.8 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
//
|
|
// Copyright (c) 2006 Simtec Electronics
|
|
// Ben Dooks <ben@simtec.co.uk>
|
|
//
|
|
// Thanks to Dimity Andric (TomTom) and Steven Ryu (Samsung) for the
|
|
// loans of SMDK2413 to work with.
|
|
|
|
#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/serial_core.h>
|
|
#include <linux/serial_s3c.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/io.h>
|
|
#include <linux/memblock.h>
|
|
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/map.h>
|
|
#include <asm/mach/irq.h>
|
|
|
|
#include <asm/hardware/iomd.h>
|
|
#include <asm/setup.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/mach-types.h>
|
|
|
|
//#include <asm/debug-ll.h>
|
|
#include "hardware-s3c24xx.h"
|
|
#include "regs-gpio.h"
|
|
|
|
#include <linux/platform_data/usb-s3c2410_udc.h>
|
|
#include <linux/platform_data/i2c-s3c2410.h>
|
|
#include <linux/platform_data/fb-s3c2410.h>
|
|
#include "gpio-samsung.h"
|
|
#include "gpio-cfg.h"
|
|
|
|
#include "devs.h"
|
|
#include "cpu.h"
|
|
|
|
#include "s3c24xx.h"
|
|
#include "common-smdk-s3c24xx.h"
|
|
|
|
static struct map_desc smdk2413_iodesc[] __initdata = {
|
|
};
|
|
|
|
static struct s3c2410_uartcfg smdk2413_uartcfgs[] __initdata = {
|
|
[0] = {
|
|
.hwport = 0,
|
|
.flags = 0,
|
|
.ucon = 0x3c5,
|
|
.ulcon = 0x03,
|
|
.ufcon = 0x51,
|
|
},
|
|
[1] = {
|
|
.hwport = 1,
|
|
.flags = 0,
|
|
.ucon = 0x3c5,
|
|
.ulcon = 0x03,
|
|
.ufcon = 0x51,
|
|
},
|
|
/* IR port */
|
|
[2] = {
|
|
.hwport = 2,
|
|
.flags = 0,
|
|
.ucon = 0x3c5,
|
|
.ulcon = 0x43,
|
|
.ufcon = 0x51,
|
|
}
|
|
};
|
|
|
|
|
|
static struct s3c2410_udc_mach_info smdk2413_udc_cfg __initdata = {
|
|
.pullup_pin = S3C2410_GPF(2),
|
|
};
|
|
|
|
|
|
static struct platform_device *smdk2413_devices[] __initdata = {
|
|
&s3c_device_ohci,
|
|
&s3c_device_wdt,
|
|
&s3c_device_i2c0,
|
|
&s3c_device_iis,
|
|
&s3c_device_usbgadget,
|
|
&s3c2412_device_dma,
|
|
};
|
|
|
|
static void __init smdk2413_fixup(struct tag *tags, char **cmdline)
|
|
{
|
|
if (tags != phys_to_virt(S3C2410_SDRAM_PA + 0x100)) {
|
|
memblock_add(0x30000000, SZ_64M);
|
|
}
|
|
}
|
|
|
|
static void __init smdk2413_map_io(void)
|
|
{
|
|
s3c24xx_init_io(smdk2413_iodesc, ARRAY_SIZE(smdk2413_iodesc));
|
|
s3c24xx_init_uarts(smdk2413_uartcfgs, ARRAY_SIZE(smdk2413_uartcfgs));
|
|
s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
|
|
}
|
|
|
|
static void __init smdk2413_init_time(void)
|
|
{
|
|
s3c2412_init_clocks(12000000);
|
|
s3c24xx_timer_init();
|
|
}
|
|
|
|
static void __init smdk2413_machine_init(void)
|
|
{ /* Turn off suspend on both USB ports, and switch the
|
|
* selectable USB port to USB device mode. */
|
|
|
|
s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST |
|
|
S3C2410_MISCCR_USBSUSPND0 |
|
|
S3C2410_MISCCR_USBSUSPND1, 0x0);
|
|
|
|
|
|
s3c24xx_udc_set_platdata(&smdk2413_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);
|
|
|
|
platform_add_devices(smdk2413_devices, ARRAY_SIZE(smdk2413_devices));
|
|
smdk_machine_init();
|
|
}
|
|
|
|
MACHINE_START(S3C2413, "S3C2413")
|
|
/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
|
|
.atag_offset = 0x100,
|
|
|
|
.fixup = smdk2413_fixup,
|
|
.init_irq = s3c2412_init_irq,
|
|
.map_io = smdk2413_map_io,
|
|
.init_machine = smdk2413_machine_init,
|
|
.init_time = s3c24xx_timer_init,
|
|
MACHINE_END
|
|
|
|
MACHINE_START(SMDK2412, "SMDK2412")
|
|
/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
|
|
.atag_offset = 0x100,
|
|
|
|
.fixup = smdk2413_fixup,
|
|
.init_irq = s3c2412_init_irq,
|
|
.map_io = smdk2413_map_io,
|
|
.init_machine = smdk2413_machine_init,
|
|
.init_time = s3c24xx_timer_init,
|
|
MACHINE_END
|
|
|
|
MACHINE_START(SMDK2413, "SMDK2413")
|
|
/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
|
|
.atag_offset = 0x100,
|
|
|
|
.fixup = smdk2413_fixup,
|
|
.init_irq = s3c2412_init_irq,
|
|
.map_io = smdk2413_map_io,
|
|
.init_machine = smdk2413_machine_init,
|
|
.init_time = smdk2413_init_time,
|
|
MACHINE_END
|