1 files changed, 52 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c2410/include/mach/uncompress.h b/arch/arm/mach-s3c2410/include/mach/uncompress.h
new file mode 100644
index 000000000000..708e47459ffc
--- /dev/null
+++ b/arch/arm/mach-s3c2410/include/mach/uncompress.h
@@ -0,0 +1,52 @@
+/* arch/arm/mach-s3c2410/include/mach/uncompress.h
+ *
+ * Copyright (c) 2003, 2007 Simtec Electronics
+ *      http://armlinux.simtec.co.uk/
+ *      Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C2410 - uncompress code
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef __ASM_ARCH_UNCOMPRESS_H
+#define __ASM_ARCH_UNCOMPRESS_H
+
+#include <mach/regs-gpio.h>
+#include <mach/map.h>
+
+/* working in physical space... */
+#undef S3C2410_GPIOREG
+#define S3C2410_GPIOREG(x) ((S3C24XX_PA_GPIO + (x)))
+
+#include <asm/plat-s3c/uncompress.h>
+
+static inline int is_arm926(void)
+{
+        unsigned int cpuid;
+
+        asm volatile ("mrc p15, 0, %0, c1, c0, 0" : "=r" (cpuid));
+
+        return ((cpuid & 0xff0) == 0x260);
+}
+
+static void arch_detect_cpu(void)
+{
+        unsigned int cpuid;
+
+        cpuid = *((volatile unsigned int *)S3C2410_GSTATUS1);
+        cpuid &= S3C2410_GSTATUS1_IDMASK;
+
+        if (is_arm926() || cpuid == S3C2410_GSTATUS1_2440 ||
+            cpuid == S3C2410_GSTATUS1_2442) {
+                fifo_mask = S3C2440_UFSTAT_TXMASK;
+                fifo_max = 63 << S3C2440_UFSTAT_TXSHIFT;
+        } else {
+                fifo_mask = S3C2410_UFSTAT_TXMASK;
+                fifo_max = 15 << S3C2410_UFSTAT_TXSHIFT;
+        }
+}
+
+#endif /* __ASM_ARCH_UNCOMPRESS_H */