Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git…

…/paulus/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  powerpc/ps3: Fix build error on UP
  powerpc/cell: Select PCI for IBM_CELL_BLADE AND CELLEB
  powerpc: ppc32 needs elf_read_implies_exec()
  powerpc/86xx: Add device_type entry to soc for ppc9a
  powerpc/44x: Correct memory size calculation for denali-based boards
  maintainers: Fix PowerPC 4xx git tree
  powerpc: fix for long standing bug noticed by gcc 4.4.0
  Revert "powerpc: Add support for early tlbilx opcode"

MAINTAINERS

@@ -3448,7 +3448,7 @@ P:	Matt Porter
 M:	[email protected]
 W:	http://www.penguinppc.org/
 L:	[email protected]
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jwboyer/powerpc.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx.git
 S:	Maintained
 
 LINUX FOR POWERPC EMBEDDED XILINX VIRTEX

arch/powerpc/boot/4xx.c

@@ -158,21 +158,33 @@ void ibm440spe_fixup_memsize(void)
 
 #define DDR_GET_VAL(val, mask, shift)	(((val) >> (shift)) & (mask))
 
-void ibm4xx_denali_fixup_memsize(void)
+/*
+ * Some U-Boot versions set the number of chipselects to two
+ * for Sequoia/Rainier boards while they only have one chipselect
+ * hardwired. Hardcode the number of chipselects to one
+ * for sequioa/rainer board models or read the actual value
+ * from the memory controller register DDR0_10 otherwise.
+ */
+static inline u32 ibm4xx_denali_get_cs(void)
 {
-	u32 val, max_cs, max_col, max_row;
-	u32 cs, col, row, bank, dpath;
-	unsigned long memsize;
+	void *devp;
+	char model[64];
+	u32 val, cs;
 
-	val = SDRAM0_READ(DDR0_02);
-	if (!DDR_GET_VAL(val, DDR_START, DDR_START_SHIFT))
-		fatal("DDR controller is not initialized\n");
+	devp = finddevice("/");
+	if (!devp)
+		goto read_cs;
 
-	/* get maximum cs col and row values */
-	max_cs  = DDR_GET_VAL(val, DDR_MAX_CS_REG, DDR_MAX_CS_REG_SHIFT);
-	max_col = DDR_GET_VAL(val, DDR_MAX_COL_REG, DDR_MAX_COL_REG_SHIFT);
-	max_row = DDR_GET_VAL(val, DDR_MAX_ROW_REG, DDR_MAX_ROW_REG_SHIFT);
+	if (getprop(devp, "model", model, sizeof(model)) <= 0)
+		goto read_cs;
 
+	model[sizeof(model)-1] = 0;
+
+	if (!strcmp(model, "amcc,sequoia") ||
+	    !strcmp(model, "amcc,rainier"))
+		return 1;
+
+read_cs:
 	/* get CS value */
 	val = SDRAM0_READ(DDR0_10);
 
@@ -183,7 +195,25 @@ void ibm4xx_denali_fixup_memsize(void)
 			cs++;
 		val = val >> 1;
 	}
+	return cs;
+}
+
+void ibm4xx_denali_fixup_memsize(void)
+{
+	u32 val, max_cs, max_col, max_row;
+	u32 cs, col, row, bank, dpath;
+	unsigned long memsize;
+
+	val = SDRAM0_READ(DDR0_02);
+	if (!DDR_GET_VAL(val, DDR_START, DDR_START_SHIFT))
+		fatal("DDR controller is not initialized\n");
 
+	/* get maximum cs col and row values */
+	max_cs  = DDR_GET_VAL(val, DDR_MAX_CS_REG, DDR_MAX_CS_REG_SHIFT);
+	max_col = DDR_GET_VAL(val, DDR_MAX_COL_REG, DDR_MAX_COL_REG_SHIFT);
+	max_row = DDR_GET_VAL(val, DDR_MAX_ROW_REG, DDR_MAX_ROW_REG_SHIFT);
+
+	cs = ibm4xx_denali_get_cs();
 	if (!cs)
 		fatal("No memory installed\n");
 	if (cs > max_cs)
@@ -193,9 +223,9 @@ void ibm4xx_denali_fixup_memsize(void)
 	val = SDRAM0_READ(DDR0_14);
 
 	if (DDR_GET_VAL(val, DDR_REDUC, DDR_REDUC_SHIFT))
-		dpath = 8; /* 64 bits */
-	else
 		dpath = 4; /* 32 bits */
+	else
+		dpath = 8; /* 64 bits */
 
 	/* get address pins (rows) */
  	val = SDRAM0_READ(DDR0_42);

arch/powerpc/boot/dts/gef_ppc9a.dts

@@ -161,6 +161,7 @@
 		#address-cells = <1>;
 		#size-cells = <1>;
 		#interrupt-cells = <2>;
+		device_type = "soc";
 		compatible = "fsl,mpc8641-soc", "simple-bus";
 		ranges = <0x0 0xfef00000 0x00100000>;
 		reg = <0xfef00000 0x100000>;	// CCSRBAR 1M

arch/powerpc/include/asm/elf.h

@@ -260,6 +260,7 @@ do {								\
 #else 
 # define SET_PERSONALITY(ex) \
   set_personality(PER_LINUX | (current->personality & (~PER_MASK)))
+# define elf_read_implies_exec(ex, exec_stk) (exec_stk != EXSTACK_DISABLE_X)
 #endif /* __powerpc64__ */
 
 extern int dcache_bsize;

arch/powerpc/include/asm/mmu.h

@@ -52,12 +52,6 @@
  */
 #define MMU_FTR_NEED_DTLB_SW_LRU	ASM_CONST(0x00200000)
 
-/* This indicates that the processor uses the wrong opcode for tlbilx
- * instructions.  During the ISA 2.06 development the opcode for tlbilx
- * changed and some early implementations used to old opcode
- */
-#define MMU_FTR_TLBILX_EARLY_OPCODE	ASM_CONST(0x00400000)
-
 #ifndef __ASSEMBLY__
 #include <asm/cputable.h>
 

arch/powerpc/include/asm/ppc-opcode.h

@@ -44,7 +44,6 @@
 #define PPC_INST_STSWI			0x7c0005aa
 #define PPC_INST_STSWX			0x7c00052a
 #define PPC_INST_TLBILX			0x7c000024
-#define PPC_INST_TLBILX_EARLY		0x7c000626
 #define PPC_INST_WAIT			0x7c00007c
 
 /* macros to insert fields into opcodes */
@@ -64,18 +63,10 @@
 #define PPC_RFDI		stringify_in_c(.long PPC_INST_RFDI)
 #define PPC_RFMCI		stringify_in_c(.long PPC_INST_RFMCI)
 #define PPC_TLBILX(t, a, b)	stringify_in_c(.long PPC_INST_TLBILX | \
-					__PPC_T_TLB(t) | \
-					__PPC_RA(a) | __PPC_RB(b))
+					__PPC_T_TLB(t) | __PPC_RA(a) | __PPC_RB(b))
 #define PPC_TLBILX_ALL(a, b)	PPC_TLBILX(0, a, b)
 #define PPC_TLBILX_PID(a, b)	PPC_TLBILX(1, a, b)
 #define PPC_TLBILX_VA(a, b)	PPC_TLBILX(3, a, b)
-
-#define PPC_TLBILX_EARLY(t, a, b) stringify_in_c(.long PPC_INST_TLBILX_EARLY | \
-						__PPC_T_TLB(t) | \
-						__PPC_RA(a) | __PPC_RB(b))
-#define PPC_TLBILX_ALL_EARLY(a, b)	PPC_TLBILX_EARLY(0, a, b)
-#define PPC_TLBILX_PID_EARLY(a, b)	PPC_TLBILX_EARLY(1, a, b)
-#define PPC_TLBILX_VA_EARLY(a, b)	PPC_TLBILX_EARLY(3, a, b)
 #define PPC_WAIT(w)		stringify_in_c(.long PPC_INST_WAIT | \
 					__PPC_WC(w))
 

arch/powerpc/kernel/cputable.c

@@ -1766,7 +1766,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.cpu_features		= CPU_FTRS_E500MC,
 		.cpu_user_features	= COMMON_USER_BOOKE | PPC_FEATURE_HAS_FPU,
 		.mmu_features		= MMU_FTR_TYPE_FSL_E | MMU_FTR_BIG_PHYS |
-			MMU_FTR_USE_TLBILX | MMU_FTR_TLBILX_EARLY_OPCODE,
+			MMU_FTR_USE_TLBILX,
 		.icache_bsize		= 64,
 		.dcache_bsize		= 64,
 		.num_pmcs		= 4,

arch/powerpc/mm/tlb_nohash_low.S

@@ -138,11 +138,7 @@ BEGIN_MMU_FTR_SECTION
 	andi.	r3,r3,MMUCSR0_TLBFI@l
 	bne	1b
 MMU_FTR_SECTION_ELSE
-  BEGIN_MMU_FTR_SECTION_NESTED(96)
-	PPC_TLBILX_ALL(0,r3)
-  MMU_FTR_SECTION_ELSE_NESTED(96)
-	PPC_TLBILX_ALL_EARLY(0,r3)
-  ALT_MMU_FTR_SECTION_END_NESTED_IFCLR(MMU_FTR_TLBILX_EARLY_OPCODE, 96)
+	PPC_TLBILX_ALL(0,0)
 ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_USE_TLBILX)
 	msync
 	isync
@@ -155,11 +151,7 @@ BEGIN_MMU_FTR_SECTION
 	wrteei	0
 	mfspr	r4,SPRN_MAS6	/* save MAS6 */
 	mtspr	SPRN_MAS6,r3
-  BEGIN_MMU_FTR_SECTION_NESTED(96)
 	PPC_TLBILX_PID(0,0)
-  MMU_FTR_SECTION_ELSE_NESTED(96)
-	PPC_TLBILX_PID_EARLY(0,0)
-  ALT_MMU_FTR_SECTION_END_NESTED_IFCLR(MMU_FTR_TLBILX_EARLY_OPCODE, 96)
 	mtspr	SPRN_MAS6,r4	/* restore MAS6 */
 	wrtee	r10
 MMU_FTR_SECTION_ELSE
@@ -193,16 +185,12 @@ BEGIN_MMU_FTR_SECTION
 	mtspr	SPRN_MAS1,r4
 	tlbwe
 MMU_FTR_SECTION_ELSE
-  BEGIN_MMU_FTR_SECTION_NESTED(96)
 	PPC_TLBILX_VA(0,r3)
-  MMU_FTR_SECTION_ELSE_NESTED(96)
-	PPC_TLBILX_VA_EARLY(0,r3)
-  ALT_MMU_FTR_SECTION_END_NESTED_IFCLR(MMU_FTR_TLBILX_EARLY_OPCODE, 96)
 ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_USE_TLBILX)
 	msync
 	isync
 1:	wrtee	r10
 	blr
-#elif
+#else
 #error Unsupported processor type !
 #endif

arch/powerpc/platforms/cell/Kconfig

@@ -13,7 +13,6 @@ config PPC_CELL_COMMON
 config PPC_CELL_NATIVE
 	bool
 	select PPC_CELL_COMMON
-	select PPC_OF_PLATFORM_PCI
 	select MPIC
 	select IBM_NEW_EMAC_EMAC4
 	select IBM_NEW_EMAC_RGMII
@@ -25,6 +24,8 @@ config PPC_IBM_CELL_BLADE
 	bool "IBM Cell Blade"
 	depends on PPC64 && PPC_BOOK3S
 	select PPC_CELL_NATIVE
+	select PPC_OF_PLATFORM_PCI
+	select PCI
 	select MMIO_NVRAM
 	select PPC_UDBG_16550
 	select UDBG_RTAS_CONSOLE
@@ -33,6 +34,8 @@ config PPC_CELLEB
 	bool "Toshiba's Cell Reference Set 'Celleb' Architecture"
 	depends on PPC64 && PPC_BOOK3S
 	select PPC_CELL_NATIVE
+	select PPC_OF_PLATFORM_PCI
+	select PCI
 	select HAS_TXX9_SERIAL
 	select PPC_UDBG_BEAT
 	select USB_OHCI_BIG_ENDIAN_MMIO

arch/powerpc/platforms/ps3/setup.c

@@ -45,10 +45,6 @@
 DEFINE_MUTEX(ps3_gpu_mutex);
 EXPORT_SYMBOL_GPL(ps3_gpu_mutex);
 
-#if !defined(CONFIG_SMP)
-static void smp_send_stop(void) {}
-#endif
-
 static union ps3_firmware_version ps3_firmware_version;
 
 void ps3_get_firmware_version(union ps3_firmware_version *v)