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>

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 00000000000..6165dc7010f
--- /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);