ARM: S3C2440: move mach-s3c2440/* into mach-s3c24xx/

This patch moves S3C2440 stuff into mach-s3c24xx/ directory
so that we can merge the s3c24 series' directories to the
just one mach-s3c24xx/ directory.

And this patch is including following.
- re-ordered alphabetically by option text at Kconfig and Makefile

Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 188 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c24xx/s3c2442.c b/arch/arm/mach-s3c24xx/s3c2442.c
new file mode 100644
index 00000000000..8004e0497bf
--- /dev/null
+++ b/arch/arm/mach-s3c24xx/s3c2442.c
@@ -0,0 +1,188 @@
+/* linux/arch/arm/mach-s3c2442/s3c2442.c
+ *
+ * Copyright (c) 2004-2005 Simtec Electronics
+ *	http://armlinux.simtec.co.uk/
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C2442 core and lock 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/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/device.h>
+#include <linux/syscore_ops.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/mutex.h>
+#include <linux/gpio.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+#include <linux/atomic.h>
+#include <asm/irq.h>
+
+#include <mach/regs-clock.h>
+
+#include <plat/clock.h>
+#include <plat/cpu.h>
+#include <plat/s3c244x.h>
+#include <plat/pm.h>
+
+#include <plat/gpio-core.h>
+#include <plat/gpio-cfg.h>
+#include <plat/gpio-cfg-helpers.h>
+
+/* S3C2442 extended clock support */
+
+static unsigned long s3c2442_camif_upll_round(struct clk *clk,
+					      unsigned long rate)
+{
+	unsigned long parent_rate = clk_get_rate(clk->parent);
+	int div;
+
+	if (rate > parent_rate)
+		return parent_rate;
+
+	div = parent_rate / rate;
+
+	if (div == 3)
+		return parent_rate / 3;
+
+	/* note, we remove the +/- 1 calculations for the divisor */
+
+	div /= 2;
+
+	if (div < 1)
+		div = 1;
+	else if (div > 16)
+		div = 16;
+
+	return parent_rate / (div * 2);
+}
+
+static int s3c2442_camif_upll_setrate(struct clk *clk, unsigned long rate)
+{
+	unsigned long parent_rate = clk_get_rate(clk->parent);
+	unsigned long camdivn =  __raw_readl(S3C2440_CAMDIVN);
+
+	rate = s3c2442_camif_upll_round(clk, rate);
+
+	camdivn &= ~S3C2442_CAMDIVN_CAMCLK_DIV3;
+
+	if (rate == parent_rate) {
+		camdivn &= ~S3C2440_CAMDIVN_CAMCLK_SEL;
+	} else if ((parent_rate / rate) == 3) {
+		camdivn |= S3C2440_CAMDIVN_CAMCLK_SEL;
+		camdivn |= S3C2442_CAMDIVN_CAMCLK_DIV3;
+	} else {
+		camdivn &= ~S3C2440_CAMDIVN_CAMCLK_MASK;
+		camdivn |= S3C2440_CAMDIVN_CAMCLK_SEL;
+		camdivn |= (((parent_rate / rate) / 2) - 1);
+	}
+
+	__raw_writel(camdivn, S3C2440_CAMDIVN);
+
+	return 0;
+}
+
+/* Extra S3C2442 clocks */
+
+static struct clk s3c2442_clk_cam = {
+	.name		= "camif",
+	.id		= -1,
+	.enable		= s3c2410_clkcon_enable,
+	.ctrlbit	= S3C2440_CLKCON_CAMERA,
+};
+
+static struct clk s3c2442_clk_cam_upll = {
+	.name		= "camif-upll",
+	.id		= -1,
+	.ops		= &(struct clk_ops) {
+		.set_rate	= s3c2442_camif_upll_setrate,
+		.round_rate	= s3c2442_camif_upll_round,
+	},
+};
+
+static int s3c2442_clk_add(struct device *dev)
+{
+	struct clk *clock_upll;
+	struct clk *clock_h;
+	struct clk *clock_p;
+
+	clock_p = clk_get(NULL, "pclk");
+	clock_h = clk_get(NULL, "hclk");
+	clock_upll = clk_get(NULL, "upll");
+
+	if (IS_ERR(clock_p) || IS_ERR(clock_h) || IS_ERR(clock_upll)) {
+		printk(KERN_ERR "S3C2442: Failed to get parent clocks\n");
+		return -EINVAL;
+	}
+
+	s3c2442_clk_cam.parent = clock_h;
+	s3c2442_clk_cam_upll.parent = clock_upll;
+
+	s3c24xx_register_clock(&s3c2442_clk_cam);
+	s3c24xx_register_clock(&s3c2442_clk_cam_upll);
+
+	clk_disable(&s3c2442_clk_cam);
+
+	return 0;
+}
+
+static struct subsys_interface s3c2442_clk_interface = {
+	.name		= "s3c2442_clk",
+	.subsys		= &s3c2442_subsys,
+	.add_dev	= s3c2442_clk_add,
+};
+
+static __init int s3c2442_clk_init(void)
+{
+	return subsys_interface_register(&s3c2442_clk_interface);
+}
+
+arch_initcall(s3c2442_clk_init);
+
+
+static struct device s3c2442_dev = {
+	.bus		= &s3c2442_subsys,
+};
+
+int __init s3c2442_init(void)
+{
+	printk("S3C2442: Initialising architecture\n");
+
+#ifdef CONFIG_PM
+	register_syscore_ops(&s3c2410_pm_syscore_ops);
+#endif
+	register_syscore_ops(&s3c244x_pm_syscore_ops);
+	register_syscore_ops(&s3c24xx_irq_syscore_ops);
+
+	return device_register(&s3c2442_dev);
+}
+
+void __init s3c2442_map_io(void)
+{
+	s3c244x_map_io();
+
+	s3c24xx_gpiocfg_default.set_pull = s3c24xx_gpio_setpull_1down;
+	s3c24xx_gpiocfg_default.get_pull = s3c24xx_gpio_getpull_1down;
+}