Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-…

…linus * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: [MIPS] Ensure that ST0_FR is never set on a 32 bit kernel [MIPS] time: Delete weak definition of plat_time_init() due to gcc bug. [MIPS] PCI: Make pcibios_fixup_device_resources ignore legacy resources. [MIPS] Atlas, Malta: Don't free firmware memory on free_initmem. [MIPS] Alchemy: fix off by two error in __fixup_bigphys_addr() [MIPS] Alchemy: fix PCI resource conflict [MIPS] time: Set up Cobalt's mips_hpt_frequency
git-mirror · Dec 17, 2007 · 7b286af · 7b286af
2 parents 6e30139 + bbaf238
commit 7b286af
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Showing 10 changed files with 41 additions and 32 deletions.
diff --git a/arch/mips/au1000/Kconfig b/arch/mips/au1000/Kconfig
@@ -7,7 +7,6 @@ config MIPS_MTX1
 	bool "4G Systems MTX-1 board"
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
-	select RESOURCES_64BIT if PCI
 	select SOC_AU1500
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
@@ -22,7 +21,6 @@ config MIPS_DB1000
 	select SOC_AU1000
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
-	select RESOURCES_64BIT if PCI
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_DB1100
@@ -44,7 +42,6 @@ config MIPS_DB1500
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select MIPS_DISABLE_OBSOLETE_IDE
-	select RESOURCES_64BIT if PCI
 	select SYS_SUPPORTS_BIG_ENDIAN
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
@@ -54,7 +51,6 @@ config MIPS_DB1550
 	select HW_HAS_PCI
 	select DMA_NONCOHERENT
 	select MIPS_DISABLE_OBSOLETE_IDE
-	select RESOURCES_64BIT if PCI
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_MIRAGE
@@ -68,7 +64,6 @@ config MIPS_PB1000
 	select SOC_AU1000
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
-	select RESOURCES_64BIT if PCI
 	select SWAP_IO_SPACE
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
@@ -77,7 +72,6 @@ config MIPS_PB1100
 	select SOC_AU1100
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
-	select RESOURCES_64BIT if PCI
 	select SWAP_IO_SPACE
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
@@ -86,15 +80,13 @@ config MIPS_PB1200
 	select SOC_AU1200
 	select DMA_NONCOHERENT
 	select MIPS_DISABLE_OBSOLETE_IDE
-	select RESOURCES_64BIT if PCI
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_PB1500
 	bool "Alchemy PB1500 board"
 	select SOC_AU1500
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
-	select RESOURCES_64BIT if PCI
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_PB1550
@@ -103,7 +95,6 @@ config MIPS_PB1550
 	select DMA_NONCOHERENT
 	select HW_HAS_PCI
 	select MIPS_DISABLE_OBSOLETE_IDE
-	select RESOURCES_64BIT if PCI
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 
 config MIPS_XXS1500

diff --git a/arch/mips/au1000/common/pci.c b/arch/mips/au1000/common/pci.c
@@ -39,15 +39,15 @@
 
 /* TBD */
 static struct resource pci_io_resource = {
-	.start	= (resource_size_t)PCI_IO_START,
-	.end	= (resource_size_t)PCI_IO_END,
+	.start	= PCI_IO_START,
+	.end	= PCI_IO_END,
 	.name	= "PCI IO space",
 	.flags	= IORESOURCE_IO
 };
 
 static struct resource pci_mem_resource = {
-	.start	= (resource_size_t)PCI_MEM_START,
-	.end	= (resource_size_t)PCI_MEM_END,
+	.start	= PCI_MEM_START,
+	.end	= PCI_MEM_END,
 	.name	= "PCI memory space",
 	.flags	= IORESOURCE_MEM
 };

diff --git a/arch/mips/au1000/common/setup.c b/arch/mips/au1000/common/setup.c
@@ -137,12 +137,11 @@ phys_t __fixup_bigphys_addr(phys_t phys_addr, phys_t size)
 
 #ifdef CONFIG_PCI
 	{
-		u32 start, end;
+		u32 start = (u32)Au1500_PCI_MEM_START;
+		u32 end   = (u32)Au1500_PCI_MEM_END;
 
-		start = (u32)Au1500_PCI_MEM_START;
-		end = (u32)Au1500_PCI_MEM_END;
-		/* check for pci memory window */
-		if ((phys_addr >= start) && ((phys_addr + size) < end))
+		/* Check for PCI memory window */
+		if (phys_addr >= start && (phys_addr + size - 1) <= end)
 			return (phys_t)
 			       ((phys_addr - start) + Au1500_PCI_MEM_START);
 	}

diff --git a/arch/mips/cobalt/time.c b/arch/mips/cobalt/time.c
@@ -27,9 +27,28 @@
 
 void __init plat_time_init(void)
 {
+	u32 start, end;
+	int i = HZ / 10;
+
 	setup_pit_timer();
 
 	gt641xx_set_base_clock(GT641XX_BASE_CLOCK);
 
-	mips_timer_state = gt641xx_timer0_state;
+	/*
+	 * MIPS counter frequency is measured during a 100msec interval
+	 * using GT64111 timer0.
+	 */
+	while (!gt641xx_timer0_state())
+		;
+
+	start = read_c0_count();
+
+	while (i--)
+		while (!gt641xx_timer0_state())
+			;
+
+	end = read_c0_count();
+
+	mips_hpt_frequency = (end - start) * 10;
+	printk(KERN_INFO "MIPS counter frequency %dHz\n", mips_hpt_frequency);
 }
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
@@ -77,9 +77,8 @@ void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp)
 	unsigned long status;
 
 	/* New thread loses kernel privileges. */
-	status = regs->cp0_status & ~(ST0_CU0|ST0_CU1|KU_MASK);
+	status = regs->cp0_status & ~(ST0_CU0|ST0_CU1|ST0_FR|KU_MASK);
 #ifdef CONFIG_64BIT
-	status &= ~ST0_FR;
 	status |= test_thread_flag(TIF_32BIT_REGS) ? 0 : ST0_FR;
 #endif
 	status |= KU_USER;

diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
@@ -109,10 +109,6 @@ void __cpuinit clockevent_set_clock(struct clock_event_device *cd,
 	cd->mult = (u32) temp;
 }
 
-void __init __weak plat_time_init(void)
-{
-}
-
 /*
  * This function exists in order to cause an error due to a duplicate
  * definition if platform code should have its own implementation.  The hook

diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
@@ -1317,12 +1317,12 @@ void __init per_cpu_trap_init(void)
 #endif
 	if (current_cpu_data.isa_level == MIPS_CPU_ISA_IV)
 		status_set |= ST0_XX;
+	if (cpu_has_dsp)
+		status_set |= ST0_MX;
+
 	change_c0_status(ST0_CU|ST0_MX|ST0_RE|ST0_FR|ST0_BEV|ST0_TS|ST0_KX|ST0_SX|ST0_UX,
 			 status_set);
 
-	if (cpu_has_dsp)
-		set_c0_status(ST0_MX);
-
 #ifdef CONFIG_CPU_MIPSR2
 	if (cpu_has_mips_r2) {
 		unsigned int enable = 0x0000000f;

diff --git a/arch/mips/mips-boards/generic/memory.c b/arch/mips/mips-boards/generic/memory.c
@@ -169,6 +169,7 @@ void __init prom_meminit(void)
 
 void __init prom_free_prom_memory(void)
 {
+#if 0 /* for now ...  */
 	unsigned long addr;
 	int i;
 
@@ -180,4 +181,5 @@ void __init prom_free_prom_memory(void)
 		free_init_pages("prom memory",
 				addr, addr + boot_mem_map.map[i].size);
 	}
+#endif
 }
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
@@ -242,6 +242,8 @@ static void pcibios_fixup_device_resources(struct pci_dev *dev,
 	for (i = 0; i < PCI_NUM_RESOURCES; i++) {
 		if (!dev->resource[i].start)
 			continue;
+		if (dev->resource[i].flags & IORESOURCE_PCI_FIXED)
+			continue;
 		if (dev->resource[i].flags & IORESOURCE_IO)
 			offset = hose->io_offset;
 		else if (dev->resource[i].flags & IORESOURCE_MEM)

diff --git a/include/asm-mips/mach-au1x00/au1000.h b/include/asm-mips/mach-au1x00/au1000.h
@@ -1680,10 +1680,11 @@ enum soc_au1200_ints {
 #define Au1500_PCI_MEM_START      0x440000000ULL
 #define Au1500_PCI_MEM_END        0x44FFFFFFFULL
 
-#define PCI_IO_START    (Au1500_PCI_IO_START + 0x1000)
-#define PCI_IO_END      (Au1500_PCI_IO_END)
-#define PCI_MEM_START   (Au1500_PCI_MEM_START)
-#define PCI_MEM_END     (Au1500_PCI_MEM_END)
+#define PCI_IO_START	0x00001000
+#define PCI_IO_END	0x000FFFFF
+#define PCI_MEM_START	0x40000000
+#define PCI_MEM_END	0x4FFFFFFF
+
 #define PCI_FIRST_DEVFN (0<<3)
 #define PCI_LAST_DEVFN  (19<<3)