ARM: at91: remove at91_boot_soc

at91_boot_soc and at91_init_soc structures are not used by any SoC, remove
their use. Also remove all the now empty SoC files.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
[nicolas.ferre@atmel.com: different organization of the patches]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>

arch/arm/mach-at91/Makefile

@@ -7,9 +7,7 @@ obj-y		:= setup.o
 obj-$(CONFIG_SOC_AT91SAM9)	+= sam9_smc.o
 
 # CPU-specific support
-obj-$(CONFIG_SOC_AT91RM9200)	+= at91rm9200.o at91rm9200_time.o
-obj-$(CONFIG_SOC_SAMA5D3)	+= sama5d3.o
-obj-$(CONFIG_SOC_SAMA5D4)	+= sama5d4.o
+obj-$(CONFIG_SOC_AT91RM9200)	+= at91rm9200_time.o
 
 # AT91SAM board with device-tree
 obj-$(CONFIG_SOC_AT91RM9200) += board-dt-rm9200.o

arch/arm/mach-at91/setup.c

@@ -22,12 +22,9 @@
 #include <mach/cpu.h>
 #include <mach/at91_dbgu.h>
 
-#include "soc.h"
 #include "generic.h"
 #include "pm.h"
 
-struct at91_init_soc __initdata at91_boot_soc;
-
 struct at91_socinfo at91_soc_initdata;
 EXPORT_SYMBOL(at91_soc_initdata);
 
@@ -60,7 +57,6 @@ static void __init soc_detect(u32 dbgu_base)
 		at91_soc_initdata.type = AT91_SOC_RM9200;
 		if (at91_soc_initdata.subtype == AT91_SOC_SUBTYPE_UNKNOWN)
 			at91_soc_initdata.subtype = AT91_SOC_RM9200_BGA;
-		at91_boot_soc = at91rm9200_soc;
 		break;
 
 	case ARCH_ID_AT91SAM9260:
@@ -106,7 +102,6 @@ static void __init soc_detect(u32 dbgu_base)
 		at91_soc_initdata.exid = __raw_readl(AT91_IO_P2V(dbgu_base) + AT91_DBGU_EXID);
 		if (at91_soc_initdata.exid & ARCH_EXID_SAMA5D3) {
 			at91_soc_initdata.type = AT91_SOC_SAMA5D3;
-			at91_boot_soc = sama5d3_soc;
 		}
 		break;
 	}
@@ -199,10 +194,8 @@ static void __init alt_soc_detect(u32 dbgu_base)
 		at91_soc_initdata.exid = __raw_readl(AT91_ALT_IO_P2V(dbgu_base) + AT91_DBGU_EXID);
 		if (at91_soc_initdata.exid & ARCH_EXID_SAMA5D3) {
 			at91_soc_initdata.type = AT91_SOC_SAMA5D3;
-			at91_boot_soc = sama5d3_soc;
 		} else if (at91_soc_initdata.exid & ARCH_EXID_SAMA5D4) {
 			at91_soc_initdata.type = AT91_SOC_SAMA5D4;
-			at91_boot_soc = sama5d4_soc;
 		}
 		break;
 	}