ARM: S3C2410: move mach-s3c2410/* into mach-s3c24xx/

This patch moves S3C2410 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
- removed unused option, MACH_N35
- fixed duplcated option name, S3C2410_DMA to S3C24XX_DMA which is
  in plat-s3c24xx/

Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 166 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c24xx/bast-irq.c b/arch/arm/mach-s3c24xx/bast-irq.c
new file mode 100644
index 00000000000..ac7b2ad5c40
--- /dev/null
+++ b/arch/arm/mach-s3c24xx/bast-irq.c
@@ -0,0 +1,166 @@
+/* linux/arch/arm/mach-s3c2410/bast-irq.c
+ *
+ * Copyright 2003-2005 Simtec Electronics
+ *   Ben Dooks <ben@simtec.co.uk>
+ *
+ * http://www.simtec.co.uk/products/EB2410ITX/
+ *
+ * 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/ioport.h>
+#include <linux/device.h>
+#include <linux/io.h>
+
+#include <asm/mach-types.h>
+
+#include <mach/hardware.h>
+#include <asm/irq.h>
+
+#include <asm/mach/irq.h>
+
+#include <mach/regs-irq.h>
+#include <mach/bast-map.h>
+#include <mach/bast-irq.h>
+
+#include <plat/irq.h>
+
+#if 0
+#include <asm/debug-ll.h>
+#endif
+
+#define irqdbf(x...)
+#define irqdbf2(x...)
+
+
+/* handle PC104 ISA interrupts from the system CPLD */
+
+/* table of ISA irq nos to the relevant mask... zero means
+ * the irq is not implemented
+*/
+static unsigned char bast_pc104_irqmasks[] = {
+        0,   /* 0 */
+        0,   /* 1 */
+        0,   /* 2 */
+        1,   /* 3 */
+        0,   /* 4 */
+        2,   /* 5 */
+        0,   /* 6 */
+        4,   /* 7 */
+        0,   /* 8 */
+        0,   /* 9 */
+        8,   /* 10 */
+        0,   /* 11 */
+        0,   /* 12 */
+        0,   /* 13 */
+        0,   /* 14 */
+        0,   /* 15 */
+};
+
+static unsigned char bast_pc104_irqs[] = { 3, 5, 7, 10 };
+
+static void
+bast_pc104_mask(struct irq_data *data)
+{
+        unsigned long temp;
+
+        temp = __raw_readb(BAST_VA_PC104_IRQMASK);
+        temp &= ~bast_pc104_irqmasks[data->irq];
+        __raw_writeb(temp, BAST_VA_PC104_IRQMASK);
+}
+
+static void
+bast_pc104_maskack(struct irq_data *data)
+{
+        struct irq_desc *desc = irq_desc + IRQ_ISA;
+
+        bast_pc104_mask(data);
+        desc->irq_data.chip->irq_ack(&desc->irq_data);
+}
+
+static void
+bast_pc104_unmask(struct irq_data *data)
+{
+        unsigned long temp;
+
+        temp = __raw_readb(BAST_VA_PC104_IRQMASK);
+        temp |= bast_pc104_irqmasks[data->irq];
+        __raw_writeb(temp, BAST_VA_PC104_IRQMASK);
+}
+
+static struct irq_chip  bast_pc104_chip = {
+        .irq_mask       = bast_pc104_mask,
+        .irq_unmask     = bast_pc104_unmask,
+        .irq_ack        = bast_pc104_maskack
+};
+
+static void
+bast_irq_pc104_demux(unsigned int irq,
+                     struct irq_desc *desc)
+{
+        unsigned int stat;
+        unsigned int irqno;
+        int i;
+
+        stat = __raw_readb(BAST_VA_PC104_IRQREQ) & 0xf;
+
+        if (unlikely(stat == 0)) {
+                /* ack if we get an irq with nothing (ie, startup) */
+
+                desc = irq_desc + IRQ_ISA;
+                desc->irq_data.chip->irq_ack(&desc->irq_data);
+        } else {
+                /* handle the IRQ */
+
+                for (i = 0; stat != 0; i++, stat >>= 1) {
+                        if (stat & 1) {
+                                irqno = bast_pc104_irqs[i];
+                                generic_handle_irq(irqno);
+                        }
+                }
+        }
+}
+
+static __init int bast_irq_init(void)
+{
+        unsigned int i;
+
+        if (machine_is_bast()) {
+                printk(KERN_INFO "BAST PC104 IRQ routing, Copyright 2005 Simtec Electronics\n");
+
+                /* zap all the IRQs */
+
+                __raw_writeb(0x0, BAST_VA_PC104_IRQMASK);
+
+                irq_set_chained_handler(IRQ_ISA, bast_irq_pc104_demux);
+
+                /* register our IRQs */
+
+                for (i = 0; i < 4; i++) {
+                        unsigned int irqno = bast_pc104_irqs[i];
+
+                        irq_set_chip_and_handler(irqno, &bast_pc104_chip,
+                                                 handle_level_irq);
+                        set_irq_flags(irqno, IRQF_VALID);
+                }
+        }
+
+        return 0;
+}
+
+arch_initcall(bast_irq_init);