Merge rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

[linux-2.6-omap-h63xx.git] / arch / arm / mach-s3c2410 / cpu.c

diff --git a/arch/arm/mach-s3c2410/cpu.c b/arch/arm/mach-s3c2410/cpu.c
index 52842e6e86e6ce6954f0515db99e8257d4ff55af..1c3c6adae6c4c11b69339eebc46650c58f57ccce 100644 (file)
--- a/arch/arm/mach-s3c2410/cpu.c
+++ b/arch/arm/mach-s3c2410/cpu.c
@@ -44,6 +44,7 @@
 #include "clock.h"
 #include "s3c2400.h"
 #include "s3c2410.h"
+#include "s3c2412.h"
 #include "s3c244x.h"
 #include "s3c2440.h"
 #include "s3c2442.h"
@@ -62,6 +63,7 @@ struct cpu_table {
 
 static const char name_s3c2400[]  = "S3C2400";
 static const char name_s3c2410[]  = "S3C2410";
+static const char name_s3c2412[]  = "S3C2412";
 static const char name_s3c2440[]  = "S3C2440";
 static const char name_s3c2442[]  = "S3C2442";
 static const char name_s3c2410a[] = "S3C2410A";
@@ -113,6 +115,15 @@ static struct cpu_table cpu_ids[] __initdata = {
                .init           = s3c2442_init,
                .name           = name_s3c2442
        },
+       {
+               .idcode         = 0x32412001,
+               .idmask         = 0xffffffff,
+               .map_io         = s3c2412_map_io,
+               .init_clocks    = s3c2412_init_clocks,
+               .init_uarts     = s3c2412_init_uarts,
+               .init           = s3c2412_init,
+               .name           = name_s3c2412,
+       },
        {
                .idcode         = 0x0,   /* S3C2400 doesn't have an idcode */
                .idmask         = 0xffffffff,
@@ -171,6 +182,24 @@ void s3c24xx_set_board(struct s3c24xx_board *b)
 
 static struct cpu_table *cpu;
 
+static unsigned long s3c24xx_read_idcode_v5(void)
+{
+#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413)
+       return __raw_readl(S3C2412_GSTATUS1);
+#else
+       return 1UL;     /* don't look like an 2400 */
+#endif
+}
+
+static unsigned long s3c24xx_read_idcode_v4(void)
+{
+#ifndef CONFIG_CPU_S3C2400
+       return __raw_readl(S3C2410_GSTATUS1);
+#else
+       return 0UL;
+#endif
+}
+
 void __init s3c24xx_init_io(struct map_desc *mach_desc, int size)
 {
        unsigned long idcode = 0x0;
@@ -178,9 +207,11 @@ void __init s3c24xx_init_io(struct map_desc *mach_desc, int size)
        /* initialise the io descriptors we need for initialisation */
        iotable_init(s3c_iodesc, ARRAY_SIZE(s3c_iodesc));
 
-#ifndef CONFIG_CPU_S3C2400
-       idcode = __raw_readl(S3C2410_GSTATUS1);
-#endif
+       if (cpu_architecture() >= CPU_ARCH_ARMv5) {
+               idcode = s3c24xx_read_idcode_v5();
+       } else {
+               idcode = s3c24xx_read_idcode_v4();
+       }
 
        cpu = s3c_lookup_cpu(idcode);