bb072c3cf2
Replace sysdev classes and struct sys_device objects used for "core" power management by Samsung platforms with struct syscore_ops objects that are simpler. This generally reduces the code size and the kernel memory footprint. It also is necessary for removing sysdevs entirely from the kernel in the future. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: Kukjin Kim <kgene.kim@samsung.com>
143 lines
3.8 KiB
C
143 lines
3.8 KiB
C
/* linux/arch/arm/mach-s3c2416/s3c2416.c
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*
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* Copyright (c) 2009 Yauhen Kharuzhy <jekhor@gmail.com>,
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* as part of OpenInkpot project
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* Copyright (c) 2009 Promwad Innovation Company
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* Yauhen Kharuzhy <yauhen.kharuzhy@promwad.com>
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*
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* Samsung S3C2416 Mobile CPU support
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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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/gpio.h>
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#include <linux/platform_device.h>
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#include <linux/serial_core.h>
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#include <linux/sysdev.h>
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#include <linux/syscore_ops.h>
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#include <linux/clk.h>
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#include <linux/io.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 <mach/hardware.h>
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#include <asm/proc-fns.h>
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#include <asm/irq.h>
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#include <mach/reset.h>
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#include <mach/idle.h>
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#include <mach/regs-s3c2443-clock.h>
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#include <plat/gpio-core.h>
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#include <plat/gpio-cfg.h>
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#include <plat/gpio-cfg-helpers.h>
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#include <plat/s3c2416.h>
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#include <plat/devs.h>
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#include <plat/cpu.h>
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#include <plat/sdhci.h>
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#include <plat/pm.h>
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#include <plat/iic-core.h>
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#include <plat/fb-core.h>
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#include <plat/nand-core.h>
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static struct map_desc s3c2416_iodesc[] __initdata = {
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IODESC_ENT(WATCHDOG),
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IODESC_ENT(CLKPWR),
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IODESC_ENT(TIMER),
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};
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struct sysdev_class s3c2416_sysclass = {
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.name = "s3c2416-core",
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};
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static struct sys_device s3c2416_sysdev = {
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.cls = &s3c2416_sysclass,
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};
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static void s3c2416_hard_reset(void)
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{
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__raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST);
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}
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int __init s3c2416_init(void)
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{
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printk(KERN_INFO "S3C2416: Initializing architecture\n");
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s3c24xx_reset_hook = s3c2416_hard_reset;
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/* s3c24xx_idle = s3c2416_idle; */
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/* change WDT IRQ number */
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s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT;
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s3c_device_wdt.resource[1].end = IRQ_S3C2443_WDT;
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/* the i2c devices are directly compatible with s3c2440 */
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s3c_i2c0_setname("s3c2440-i2c");
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s3c_i2c1_setname("s3c2440-i2c");
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s3c_fb_setname("s3c2443-fb");
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register_syscore_ops(&s3c2416_pm_syscore_ops);
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register_syscore_ops(&s3c24xx_irq_syscore_ops);
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return sysdev_register(&s3c2416_sysdev);
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}
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void __init s3c2416_init_uarts(struct s3c2410_uartcfg *cfg, int no)
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{
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s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
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s3c_nand_setname("s3c2412-nand");
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}
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/* s3c2416_map_io
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*
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* register the standard cpu IO areas, and any passed in from the
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* machine specific initialisation.
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*/
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void __init s3c2416_map_io(void)
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{
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s3c24xx_gpiocfg_default.set_pull = s3c_gpio_setpull_updown;
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s3c24xx_gpiocfg_default.get_pull = s3c_gpio_getpull_updown;
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/* initialize device information early */
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s3c2416_default_sdhci0();
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s3c2416_default_sdhci1();
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iotable_init(s3c2416_iodesc, ARRAY_SIZE(s3c2416_iodesc));
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}
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/* need to register class before we actually register the device, and
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* we also need to ensure that it has been initialised before any of the
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* drivers even try to use it (even if not on an s3c2416 based system)
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* as a driver which may support both 2443 and 2440 may try and use it.
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*/
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static int __init s3c2416_core_init(void)
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{
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return sysdev_class_register(&s3c2416_sysclass);
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}
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core_initcall(s3c2416_core_init);
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