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authorLinus Torvalds <torvalds@linux-foundation.org>2011-06-14 11:28:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-06-14 11:28:54 -0700
commit3a2289a4a317e0290a8bc7af28c62c9830cb12e5 (patch)
treef1230c3fd1025c118ba6b7263c4987b962a7288c /arch
parentca5432010e45d7f809b441b0c1e85e84b039cd85 (diff)
parent734c3ce3bd4d51c932893b9f6d32b9ded31acdff (diff)
downloadlinux-3a2289a4a317e0290a8bc7af28c62c9830cb12e5.tar.gz
Merge branch 'for-linus-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
* 'for-linus-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k: use kernel processor defines for conditional optimizations
  m68knommu: create config options for CPU classes
  m68knommu: fix linker script exported name sections
Diffstat (limited to 'arch')
-rw-r--r--arch/m68k/Kconfig.nommu52
-rw-r--r--arch/m68k/kernel/m68k_ksyms.c3
-rw-r--r--arch/m68k/kernel/vmlinux.lds_no.S20
-rw-r--r--arch/m68k/lib/memcpy.c9
-rw-r--r--arch/m68k/lib/memset.c9
-rw-r--r--arch/m68k/lib/muldi3.c21
6 files changed, 74 insertions, 40 deletions
diff --git a/arch/m68k/Kconfig.nommu b/arch/m68k/Kconfig.nommu
index fc98f9b9d4d2..b004dc1b1710 100644
--- a/arch/m68k/Kconfig.nommu
+++ b/arch/m68k/Kconfig.nommu
@@ -14,6 +14,33 @@ config GENERIC_CLOCKEVENTS
 	bool
 	default n
 
+config M68000
+	bool
+	help
+	  The Freescale (was Motorola) 68000 CPU is the first generation of
+	  the well known M68K family of processors. The CPU core as well as
+	  being available as a stand alone CPU was also used in many
+	  System-On-Chip devices (eg 68328, 68302, etc). It does not contain
+	  a paging MMU.
+
+config MCPU32
+	bool
+	help
+	  The Freescale (was then Motorola) CPU32 is a CPU core that is
+	  based on the 68020 processor. For the most part it is used in
+	  System-On-Chip parts, and does not contain a paging MMU.
+
+config COLDFIRE
+	bool
+	select GENERIC_GPIO
+	select ARCH_REQUIRE_GPIOLIB
+	help
+	  The Freescale ColdFire family of processors is a modern derivitive
+	  of the 68000 processor family. They are mainly targeted at embedded
+	  applications, and are all System-On-Chip (SOC) devices, as opposed
+	  to stand alone CPUs. They implement a subset of the original 68000
+	  processor instruction set.
+
 config COLDFIRE_SW_A7
 	bool
 	default n
@@ -36,26 +63,31 @@ choice
 
 config M68328
 	bool "MC68328"
+	select M68000
 	help
 	  Motorola 68328 processor support.
 
 config M68EZ328
 	bool "MC68EZ328"
+	select M68000
 	help
 	  Motorola 68EX328 processor support.
 
 config M68VZ328
 	bool "MC68VZ328"
+	select M68000
 	help
 	  Motorola 68VZ328 processor support.
 
 config M68360
 	bool "MC68360"
+	select MCPU32
 	help
 	  Motorola 68360 processor support.
 
 config M5206
 	bool "MCF5206"
+	select COLDFIRE
 	select COLDFIRE_SW_A7
 	select HAVE_MBAR
 	help
@@ -63,6 +95,7 @@ config M5206
 
 config M5206e
 	bool "MCF5206e"
+	select COLDFIRE
 	select COLDFIRE_SW_A7
 	select HAVE_MBAR
 	help
@@ -70,6 +103,7 @@ config M5206e
 
 config M520x
 	bool "MCF520x"
+	select COLDFIRE
 	select GENERIC_CLOCKEVENTS
 	select HAVE_CACHE_SPLIT
 	help
@@ -77,6 +111,7 @@ config M520x
 
 config M523x
 	bool "MCF523x"
+	select COLDFIRE
 	select GENERIC_CLOCKEVENTS
 	select HAVE_CACHE_SPLIT
 	select HAVE_IPSBAR
@@ -85,6 +120,7 @@ config M523x
 
 config M5249
 	bool "MCF5249"
+	select COLDFIRE
 	select COLDFIRE_SW_A7
 	select HAVE_MBAR
 	help
@@ -92,6 +128,7 @@ config M5249
 
 config M5271
 	bool "MCF5271"
+	select COLDFIRE
 	select HAVE_CACHE_SPLIT
 	select HAVE_IPSBAR
 	help
@@ -99,6 +136,7 @@ config M5271
 
 config M5272
 	bool "MCF5272"
+	select COLDFIRE
 	select COLDFIRE_SW_A7
 	select HAVE_MBAR
 	help
@@ -106,6 +144,7 @@ config M5272
 
 config M5275
 	bool "MCF5275"
+	select COLDFIRE
 	select HAVE_CACHE_SPLIT
 	select HAVE_IPSBAR
 	help
@@ -113,6 +152,7 @@ config M5275
 
 config M528x
 	bool "MCF528x"
+	select COLDFIRE
 	select GENERIC_CLOCKEVENTS
 	select HAVE_CACHE_SPLIT
 	select HAVE_IPSBAR
@@ -121,6 +161,7 @@ config M528x
 
 config M5307
 	bool "MCF5307"
+	select COLDFIRE
 	select COLDFIRE_SW_A7
 	select HAVE_CACHE_CB
 	select HAVE_MBAR
@@ -129,12 +170,14 @@ config M5307
 
 config M532x
 	bool "MCF532x"
+	select COLDFIRE
 	select HAVE_CACHE_CB
 	help
 	  Freescale (Motorola) ColdFire 532x processor support.
 
 config M5407
 	bool "MCF5407"
+	select COLDFIRE
 	select COLDFIRE_SW_A7
 	select HAVE_CACHE_CB
 	select HAVE_MBAR
@@ -143,6 +186,7 @@ config M5407
 
 config M547x
 	bool "MCF547x"
+	select COLDFIRE
 	select HAVE_CACHE_CB
 	select HAVE_MBAR
 	help
@@ -150,6 +194,7 @@ config M547x
 
 config M548x
 	bool "MCF548x"
+	select COLDFIRE
 	select HAVE_CACHE_CB
 	select HAVE_MBAR
 	help
@@ -168,13 +213,6 @@ config M54xx
 	depends on (M548x || M547x)
 	default y
 
-config COLDFIRE
-	bool
-	depends on (M5206 || M5206e || M520x || M523x || M5249 || M527x || M5272 || M528x || M5307 || M532x || M5407 || M54xx)
-	select GENERIC_GPIO
-	select ARCH_REQUIRE_GPIOLIB
-	default y
-
 config CLOCK_SET
 	bool "Enable setting the CPU clock frequency"
 	default n
diff --git a/arch/m68k/kernel/m68k_ksyms.c b/arch/m68k/kernel/m68k_ksyms.c
index 33f82769547c..1b7a14d1a000 100644
--- a/arch/m68k/kernel/m68k_ksyms.c
+++ b/arch/m68k/kernel/m68k_ksyms.c
@@ -14,8 +14,7 @@ EXPORT_SYMBOL(__ashrdi3);
 EXPORT_SYMBOL(__lshrdi3);
 EXPORT_SYMBOL(__muldi3);
 
-#if !defined(__mc68020__) && !defined(__mc68030__) && \
-    !defined(__mc68040__) && !defined(__mc68060__) && !defined(__mcpu32__)
+#if defined(CONFIG_M68000) || defined(CONFIG_COLDFIRE)
 /*
  * Simpler 68k and ColdFire parts also need a few other gcc functions.
  */
diff --git a/arch/m68k/kernel/vmlinux.lds_no.S b/arch/m68k/kernel/vmlinux.lds_no.S
index f4d715cdca0e..7dc4087a9545 100644
--- a/arch/m68k/kernel/vmlinux.lds_no.S
+++ b/arch/m68k/kernel/vmlinux.lds_no.S
@@ -84,52 +84,52 @@ SECTIONS {
 		/* Kernel symbol table: Normal symbols */
 		. = ALIGN(4);
 		__start___ksymtab = .;
-		*(__ksymtab)
+		*(SORT(___ksymtab+*))
 		__stop___ksymtab = .;
 
 		/* Kernel symbol table: GPL-only symbols */
 		__start___ksymtab_gpl = .;
-		*(__ksymtab_gpl)
+		*(SORT(___ksymtab_gpl+*))
 		__stop___ksymtab_gpl = .;
 
 		/* Kernel symbol table: Normal unused symbols */
 		__start___ksymtab_unused = .;
-		*(__ksymtab_unused)
+		*(SORT(___ksymtab_unused+*))
 		__stop___ksymtab_unused = .;
 
 		/* Kernel symbol table: GPL-only unused symbols */
 		__start___ksymtab_unused_gpl = .;
-		*(__ksymtab_unused_gpl)
+		*(SORT(___ksymtab_unused_gpl+*))
 		__stop___ksymtab_unused_gpl = .;
 
 		/* Kernel symbol table: GPL-future symbols */
 		__start___ksymtab_gpl_future = .;
-		*(__ksymtab_gpl_future)
+		*(SORT(___ksymtab_gpl_future+*))
 		__stop___ksymtab_gpl_future = .;
 
 		/* Kernel symbol table: Normal symbols */
 		__start___kcrctab = .;
-		*(__kcrctab)
+		*(SORT(___kcrctab+*))
 		__stop___kcrctab = .;
 
 		/* Kernel symbol table: GPL-only symbols */
 		__start___kcrctab_gpl = .;
-		*(__kcrctab_gpl)
+		*(SORT(___kcrctab_gpl+*))
 		__stop___kcrctab_gpl = .;
 
 		/* Kernel symbol table: Normal unused symbols */
 		__start___kcrctab_unused = .;
-		*(__kcrctab_unused)
+		*(SORT(___kcrctab_unused+*))
 		__stop___kcrctab_unused = .;
 
 		/* Kernel symbol table: GPL-only unused symbols */
 		__start___kcrctab_unused_gpl = .;
-		*(__kcrctab_unused_gpl)
+		*(SORT(___kcrctab_unused_gpl+*))
 		__stop___kcrctab_unused_gpl = .;
 
 		/* Kernel symbol table: GPL-future symbols */
 		__start___kcrctab_gpl_future = .;
-		*(__kcrctab_gpl_future)
+		*(SORT(___kcrctab_gpl_future+*))
 		__stop___kcrctab_gpl_future = .;
 
 		/* Kernel symbol table: strings */
diff --git a/arch/m68k/lib/memcpy.c b/arch/m68k/lib/memcpy.c
index 62182c81e91c..064889316974 100644
--- a/arch/m68k/lib/memcpy.c
+++ b/arch/m68k/lib/memcpy.c
@@ -34,8 +34,10 @@ void *memcpy(void *to, const void *from, size_t n)
 	if (temp) {
 		long *lto = to;
 		const long *lfrom = from;
-#if defined(__mc68020__) || defined(__mc68030__) || \
-    defined(__mc68040__) || defined(__mc68060__) || defined(__mcpu32__)
+#if defined(CONFIG_M68000) || defined(CONFIG_COLDFIRE)
+		for (; temp; temp--)
+			*lto++ = *lfrom++;
+#else
 		asm volatile (
 			"	movel %2,%3\n"
 			"	andw  #7,%3\n"
@@ -56,9 +58,6 @@ void *memcpy(void *to, const void *from, size_t n)
 			"	jpl   4b"
 			: "=a" (lfrom), "=a" (lto), "=d" (temp), "=&d" (temp1)
 			: "0" (lfrom), "1" (lto), "2" (temp));
-#else
-		for (; temp; temp--)
-			*lto++ = *lfrom++;
 #endif
 		to = lto;
 		from = lfrom;
diff --git a/arch/m68k/lib/memset.c b/arch/m68k/lib/memset.c
index f649e6a2e644..8a7639f0a2fe 100644
--- a/arch/m68k/lib/memset.c
+++ b/arch/m68k/lib/memset.c
@@ -32,8 +32,10 @@ void *memset(void *s, int c, size_t count)
 	temp = count >> 2;
 	if (temp) {
 		long *ls = s;
-#if defined(__mc68020__) || defined(__mc68030__) || \
-    defined(__mc68040__) || defined(__mc68060__) || defined(__mcpu32__)
+#if defined(CONFIG_M68000) || defined(CONFIG_COLDFIRE)
+		for (; temp; temp--)
+			*ls++ = c;
+#else
 		size_t temp1;
 		asm volatile (
 			"	movel %1,%2\n"
@@ -55,9 +57,6 @@ void *memset(void *s, int c, size_t count)
 			"	jpl   1b"
 			: "=a" (ls), "=d" (temp), "=&d" (temp1)
 			: "d" (c), "0" (ls), "1" (temp));
-#else
-		for (; temp; temp--)
-			*ls++ = c;
 #endif
 		s = ls;
 	}
diff --git a/arch/m68k/lib/muldi3.c b/arch/m68k/lib/muldi3.c
index 079bafca073e..79e928a525d0 100644
--- a/arch/m68k/lib/muldi3.c
+++ b/arch/m68k/lib/muldi3.c
@@ -19,17 +19,7 @@ along with GNU CC; see the file COPYING.  If not, write to
 the Free Software Foundation, 59 Temple Place - Suite 330,
 Boston, MA 02111-1307, USA.  */
 
-#if defined(__mc68020__) || defined(__mc68030__) || \
-    defined(__mc68040__) || defined(__mc68060__) || defined(__mcpu32__)
-
-#define umul_ppmm(w1, w0, u, v) \
-  __asm__ ("mulu%.l %3,%1:%0"						\
-           : "=d" ((USItype)(w0)),					\
-             "=d" ((USItype)(w1))					\
-           : "%0" ((USItype)(u)),					\
-             "dmi" ((USItype)(v)))
-
-#else
+#if defined(CONFIG_M68000) || defined(CONFIG_COLDFIRE)
 
 #define SI_TYPE_SIZE 32
 #define __BITS4 (SI_TYPE_SIZE / 4)
@@ -61,6 +51,15 @@ Boston, MA 02111-1307, USA.  */
     (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0);		\
   } while (0)
 
+#else
+
+#define umul_ppmm(w1, w0, u, v) \
+  __asm__ ("mulu%.l %3,%1:%0"						\
+           : "=d" ((USItype)(w0)),					\
+             "=d" ((USItype)(w1))					\
+           : "%0" ((USItype)(u)),					\
+             "dmi" ((USItype)(v)))
+
 #endif
 
 #define __umulsidi3(u, v) \