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author | Yauhen Kharuzhy <jekhor@gmail.com> | 2010-04-28 18:09:01 +0900 |
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committer | Ben Dooks <ben-linux@fluff.org> | 2010-05-10 11:44:39 +0900 |
commit | f1290a49c5496521360a3e40d8bc766aceee65e5 (patch) | |
tree | 200106e8306af3f0791018ddc3891a02710998dc /arch/arm/mach-s3c2416/s3c2416.c | |
parent | 4e04691bc600b53f6aab63404e58fae3bdf8e310 (diff) | |
download | kernel_samsung_tuna-f1290a49c5496521360a3e40d8bc766aceee65e5.zip kernel_samsung_tuna-f1290a49c5496521360a3e40d8bc766aceee65e5.tar.gz kernel_samsung_tuna-f1290a49c5496521360a3e40d8bc766aceee65e5.tar.bz2 |
ARM: S3C2416: Add arch support
Add arch/arm/mach-s3c2416 for support of the Samsung S3C2416 SoC.
This patch adds support of the S3C2416 SoC, clocks, timers,
and initial IRQ support (without support of secondary set of registers).
Signed-off-by: Yauhen Kharuzhy <jekhor@gmail.com>
[ben-linux@fluff.org: removed files to be reworked, fixed conflicts]
[ben-linux@fluff.org: use s3c2443 reset instead of specific reset code]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch/arm/mach-s3c2416/s3c2416.c')
-rw-r--r-- | arch/arm/mach-s3c2416/s3c2416.c | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2416/s3c2416.c b/arch/arm/mach-s3c2416/s3c2416.c new file mode 100644 index 0000000..6165dc7 --- /dev/null +++ b/arch/arm/mach-s3c2416/s3c2416.c @@ -0,0 +1,115 @@ +/* linux/arch/arm/mach-s3c2416/s3c2416.c + * + * Copyright (c) 2009 Yauhen Kharuzhy <jekhor@gmail.com>, + * as part of OpenInkpot project + * Copyright (c) 2009 Promwad Innovation Company + * Yauhen Kharuzhy <yauhen.kharuzhy@promwad.com> + * + * Samsung S3C2416 Mobile CPU support + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +*/ + +#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/platform_device.h> +#include <linux/serial_core.h> +#include <linux/sysdev.h> +#include <linux/clk.h> +#include <linux/io.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <mach/hardware.h> +#include <asm/proc-fns.h> +#include <asm/irq.h> + +#include <mach/reset.h> +#include <mach/idle.h> +#include <mach/regs-s3c2443-clock.h> + +#include <plat/s3c2416.h> +#include <plat/devs.h> +#include <plat/cpu.h> + +static struct map_desc s3c2416_iodesc[] __initdata = { + IODESC_ENT(WATCHDOG), + IODESC_ENT(CLKPWR), + IODESC_ENT(TIMER), +}; + +struct sysdev_class s3c2416_sysclass = { + .name = "s3c2416-core", +}; + +static struct sys_device s3c2416_sysdev = { + .cls = &s3c2416_sysclass, +}; + +static void s3c2416_hard_reset(void) +{ + __raw_writel(S3C2443_SWRST_RESET, S3C2443_SWRST); +} + +int __init s3c2416_init(void) +{ + printk(KERN_INFO "S3C2416: Initializing architecture\n"); + + s3c24xx_reset_hook = s3c2416_hard_reset; + /* s3c24xx_idle = s3c2416_idle; */ + + /* change WDT IRQ number */ + s3c_device_wdt.resource[1].start = IRQ_S3C2443_WDT; + s3c_device_wdt.resource[1].end = IRQ_S3C2443_WDT; + + return sysdev_register(&s3c2416_sysdev); +} + +void __init s3c2416_init_uarts(struct s3c2410_uartcfg *cfg, int no) +{ + s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no); + + s3c_device_nand.name = "s3c2416-nand"; +} + +/* s3c2416_map_io + * + * register the standard cpu IO areas, and any passed in from the + * machine specific initialisation. + */ + +void __init s3c2416_map_io(void) +{ + iotable_init(s3c2416_iodesc, ARRAY_SIZE(s3c2416_iodesc)); +} + +/* need to register class before we actually register the device, and + * we also need to ensure that it has been initialised before any of the + * drivers even try to use it (even if not on an s3c2416 based system) + * as a driver which may support both 2443 and 2440 may try and use it. +*/ + +static int __init s3c2416_core_init(void) +{ + return sysdev_class_register(&s3c2416_sysclass); +} + +core_initcall(s3c2416_core_init); |