Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6:
  Blackfin SPORTS UART Driver: converting BFIN->BLACKFIN
  Blackfin serial driver: add extra IRQ flag for 8250 serial driver
  8250 Serial Driver: Added support for 8250-class UARTs in HV Sistemas H8606 board
  Blackfin arch: Fix bug - USB fails to build for BF524/BF526
  Blackfin arch: update boards defconfig files
  Blackfin arch: IO Port functions to read/write unalligned memory
  Blackfin arch: enable a choice to provide 4M DMA memory
  Blackfin arch: cleanup the icplb/dcplb multiple hit checks
  Blackfin arch: Add workaround to read edge triggered GPIOs
  Blackfin arch: Sync channel defines with struct dma_register dma_io_base_addr.
  Blackfin arch: Check for Anomaly 05000182
  [Blackfin] arch: rename bf5xx-flash to bfin-async-flash
  [Blackfin] arch: Blackfin checksum annotations

arch/blackfin/Kconfig

@@ -479,16 +479,6 @@ comment "Memory Setup"
 
 comment "Misc"
 
-config ENET_FLASH_PIN
-	int "PF port/pin used for flash and ethernet sharing"
-	depends on (BFIN533_STAMP)
-	default  0
-	help
-	  PF port/pin used for flash and ethernet sharing to allow other PF
-	  pins to be used on other platforms without having to touch common
-	  code.
-	  For example: PF0 --> 0,PF1 --> 1,PF2 --> 2, etc.
-
 choice
 	prompt "Blackfin Exception Scratch Register"
 	default BFIN_SCRATCH_REG_RETN
@@ -695,6 +685,8 @@ choice
 	prompt "Uncached SDRAM region"
 	default DMA_UNCACHED_1M
 	depends on BFIN_DMA_5XX
+config DMA_UNCACHED_4M
+	bool "Enable 4M DMA region"
 config DMA_UNCACHED_2M
 	bool "Enable 2M DMA region"
 config DMA_UNCACHED_1M

arch/blackfin/configs/IP0X_defconfig

@@ -212,7 +212,7 @@ CONFIG_HZ=250
 #
 # Memory Setup
 #
-CONFIG_MEM_SIZE=64
+CONFIG_MAX_MEM_SIZE=64
 CONFIG_MEM_ADD_WIDTH=10
 
 #

arch/blackfin/kernel/bfin_dma_5xx.c

@@ -90,6 +90,17 @@ int request_dma(unsigned int channel, char *device_id)
 {
 
 	pr_debug("request_dma() : BEGIN \n");
+
+#if defined(CONFIG_BF561) && ANOMALY_05000182
+	if (channel >= CH_IMEM_STREAM0_DEST && channel <= CH_IMEM_STREAM1_DEST) {
+		if (get_cclk() > 500000000) {
+			printk(KERN_WARNING
+			       "Request IMDMA failed due to ANOMALY 05000182\n");
+			return -EFAULT;
+		}
+	}
+#endif
+
 	mutex_lock(&(dma_ch[channel].dmalock));
 
 	if ((dma_ch[channel].chan_status == DMA_CHANNEL_REQUESTED)

arch/blackfin/kernel/bfin_gpio.c

@@ -1130,6 +1130,25 @@ void bfin_gpio_irq_prepare(unsigned gpio)
 
 #else
 
+int gpio_get_value(unsigned gpio)
+{
+	unsigned long flags;
+	int ret;
+
+	if (unlikely(get_gpio_edge(gpio))) {
+		local_irq_save(flags);
+		set_gpio_edge(gpio, 0);
+		ret = get_gpio_data(gpio);
+		set_gpio_edge(gpio, 1);
+		local_irq_restore(flags);
+
+		return ret;
+	} else
+		return get_gpio_data(gpio);
+}
+EXPORT_SYMBOL(gpio_get_value);
+
+
 int gpio_direction_input(unsigned gpio)
 {
 	unsigned long flags;

arch/blackfin/kernel/bfin_ksyms.c

@@ -90,7 +90,9 @@ EXPORT_SYMBOL(__umodsi3);
 EXPORT_SYMBOL(outsb);
 EXPORT_SYMBOL(insb);
 EXPORT_SYMBOL(outsw);
+EXPORT_SYMBOL(outsw_8);
 EXPORT_SYMBOL(insw);
+EXPORT_SYMBOL(insw_8);
 EXPORT_SYMBOL(outsl);
 EXPORT_SYMBOL(insl);
 EXPORT_SYMBOL(insl_16);

arch/blackfin/kernel/traps.c

@@ -364,13 +364,13 @@ asmlinkage void trap_c(struct pt_regs *fp)
 	/* 0x27 - Data CPLB Multiple Hits - Linux Trap Zero, handled here */
 	case VEC_CPLB_MHIT:
 		info.si_code = ILL_CPLB_MULHIT;
-#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
 		sig = SIGSEGV;
-		printk(KERN_NOTICE "NULL pointer access (probably)\n");
-#else
-		sig = SIGILL;
-		printk(KERN_NOTICE EXC_0x27(KERN_NOTICE));
+#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
+		if (saved_dcplb_fault_addr < (void *)FIXED_CODE_START)
+			printk(KERN_NOTICE "NULL pointer access\n");
+		else
 #endif
+			printk(KERN_NOTICE EXC_0x27(KERN_NOTICE));
 		CHK_DEBUGGER_TRAP();
 		break;
 	/* 0x28 - Emulation Watchpoint, handled here */
@@ -419,13 +419,13 @@ asmlinkage void trap_c(struct pt_regs *fp)
 	/* 0x2D - Instruction CPLB Multiple Hits, handled here */
 	case VEC_CPLB_I_MHIT:
 		info.si_code = ILL_CPLB_MULHIT;
-#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
 		sig = SIGSEGV;
-		printk(KERN_NOTICE "Jump to address 0 - 0x0fff\n");
-#else
-		sig = SIGILL;
-		printk(KERN_NOTICE EXC_0x2D(KERN_NOTICE));
+#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
+		if (saved_icplb_fault_addr < (void *)FIXED_CODE_START)
+			printk(KERN_NOTICE "Jump to NULL address\n");
+		else
 #endif
+			printk(KERN_NOTICE EXC_0x2D(KERN_NOTICE));
 		CHK_DEBUGGER_TRAP();
 		break;
 	/* 0x2E - Illegal use of Supervisor Resource, handled here */

arch/blackfin/lib/checksum.c

@@ -72,9 +72,9 @@ static unsigned short do_csum(const unsigned char *buff, int len)
  *	This is a version of ip_compute_csum() optimized for IP headers,
  *	which always checksum on 4 octet boundaries.
  */
-unsigned short ip_fast_csum(unsigned char *iph, unsigned int ihl)
+__sum16 ip_fast_csum(unsigned char *iph, unsigned int ihl)
 {
-	return ~do_csum(iph, ihl * 4);
+	return (__force __sum16)~do_csum(iph, ihl * 4);
 }
 
 /*
@@ -89,7 +89,7 @@ unsigned short ip_fast_csum(unsigned char *iph, unsigned int ihl)
  *
  * it's best to have buff aligned on a 32-bit boundary
  */
-unsigned int csum_partial(const unsigned char *buff, int len, unsigned int sum)
+__wsum csum_partial(const void *buff, int len, __wsum sum)
 {
 	/*
 	 * Just in case we get nasty checksum data...
@@ -109,22 +109,22 @@ unsigned int csum_partial(const unsigned char *buff, int len, unsigned int sum)
  * this routine is used for miscellaneous IP-like checksums, mainly
  * in icmp.c
  */
-unsigned short ip_compute_csum(const unsigned char *buff, int len)
+__sum16 ip_compute_csum(const void *buff, int len)
 {
-	return ~do_csum(buff, len);
+	return (__force __sum16)~do_csum(buff, len);
 }
 
 /*
  * copy from fs while checksumming, otherwise like csum_partial
  */
 
-unsigned int
-csum_partial_copy_from_user(const unsigned char *src, unsigned char *dst,
-			    int len, int sum, int *csum_err)
+__wsum
+csum_partial_copy_from_user(const void __user *src, void *dst,
+			    int len, __wsum sum, int *csum_err)
 {
 	if (csum_err)
 		*csum_err = 0;
-	memcpy(dst, src, len);
+	memcpy(dst, (__force void *)src, len);
 	return csum_partial(dst, len, sum);
 }
 
@@ -132,8 +132,7 @@ csum_partial_copy_from_user(const unsigned char *src, unsigned char *dst,
  * copy from ds while checksumming, otherwise like csum_partial
  */
 
-unsigned int csum_partial_copy(const unsigned char *src, unsigned char *dst,
-			       int len, int sum)
+__wsum csum_partial_copy(const void *src, void *dst, int len, __wsum sum)
 {
 	memcpy(dst, src, len);
 	return csum_partial(dst, len, sum);

arch/blackfin/lib/ins.S

@@ -7,7 +7,7 @@
  * Description:  Implementation of ins{bwl} for BlackFin processors using zero overhead loops.
  *
  * Modified:
- *               Copyright 2004-2006 Analog Devices Inc.
+ *               Copyright 2004-2008 Analog Devices Inc.
  *               Copyright (C) 2005 Bas Vermeulen, BuyWays BV <bas@buyways.nl>
  *
  * Bugs:         Enter bugs at http://blackfin.uclinux.org/
@@ -63,6 +63,23 @@ ENTRY(_insw)
 	RTS;
 ENDPROC(_insw)
 
+ENTRY(_insw_8)
+	P0 = R0;	/* P0 = port */
+	cli R3;
+	P1 = R1;	/* P1 = address */
+	P2 = R2;	/* P2 = count */
+	SSYNC;
+	LSETUP( .Lword8_loop_s, .Lword8_loop_e) LC0 = P2;
+.Lword8_loop_s:  R0 = W[P0];
+		B[P1++] = R0;
+		R0 = R0 >> 8;
+		B[P1++] = R0;
+		NOP;
+.Lword8_loop_e: NOP;
+	sti R3;
+	RTS;
+ENDPROC(_insw_8)
+
 ENTRY(_insb)
 	P0 = R0;	/* P0 = port */
 	cli R3;
@@ -78,8 +95,6 @@ ENTRY(_insb)
 	RTS;
 ENDPROC(_insb)
 
-
-
 ENTRY(_insl_16)
 	P0 = R0;	/* P0 = port */
 	cli R3;

arch/blackfin/lib/outs.S

@@ -7,7 +7,7 @@
  * Description:  Implementation of outs{bwl} for BlackFin processors using zero overhead loops.
  *
  * Modified:     Copyright (C) 2005 Bas Vermeulen, BuyWays BV <bas@buyways.nl>
- *               Copyright 2004-2006 Analog Devices Inc.
+ *               Copyright 2004-2008 Analog Devices Inc.
  *
  * Bugs:         Enter bugs at http://blackfin.uclinux.org/
  *
@@ -63,3 +63,17 @@ ENTRY(_outsb)
 .Lbyte_loop_e: B[P0] = R0;
 	RTS;
 ENDPROC(_outsb)
+
+ENTRY(_outsw_8)
+	P0 = R0;	/* P0 = port */
+	P1 = R1;	/* P1 = address */
+	P2 = R2;	/* P2 = count */
+
+	LSETUP( .Lword8_loop_s, .Lword8_loop_e) LC0 = P2;
+.Lword8_loop_s: R1 = B[P1++];
+		R0 = B[P1++];
+		R0 = R0 << 8;
+		R0 = R0 + R1;
+.Lword8_loop_e: W[P0] = R0;
+	RTS;
+ENDPROC(_outsw)

arch/blackfin/mach-bf533/boards/stamp.c

@@ -111,7 +111,7 @@ static struct platform_device net2272_bfin_device = {
 };
 #endif
 
-#if defined(CONFIG_MTD_BF5xx) || defined(CONFIG_MTD_BF5xx_MODULE)
+#if defined(CONFIG_MTD_BFIN_ASYNC) || defined(CONFIG_MTD_BFIN_ASYNC_MODULE)
 static struct mtd_partition stamp_partitions[] = {
 	{
 		.name   = "Bootloader",
@@ -141,13 +141,17 @@ static struct resource stamp_flash_resource[] = {
 		.end   = 0x203fffff,
 		.flags = IORESOURCE_MEM,
 	}, {
-		.start = CONFIG_ENET_FLASH_PIN,
+		.start = 0x7BB07BB0,	/* AMBCTL0 setting when accessing flash */
+		.end   = 0x7BB07BB0,	/* AMBCTL1 setting when accessing flash */
+		.flags = IORESOURCE_MEM,
+	}, {
+		.start = GPIO_PF0,
 		.flags = IORESOURCE_IRQ,
 	}
 };
 
 static struct platform_device stamp_flash_device = {
-	.name          = "BF5xx-Flash",
+	.name          = "bfin-async-flash",
 	.id            = 0,
 	.dev = {
 		.platform_data = &stamp_flash_data,
@@ -595,7 +599,7 @@ static struct platform_device *stamp_devices[] __initdata = {
 
 	&bfin_gpios_device,
 
-#if defined(CONFIG_MTD_BF5xx) || defined(CONFIG_MTD_BF5xx_MODULE)
+#if defined(CONFIG_MTD_BFIN_ASYNC) || defined(CONFIG_MTD_BFIN_ASYNC_MODULE)
 	&stamp_flash_device,
 #endif
 };
@@ -617,8 +621,8 @@ static int __init stamp_init(void)
 
 #if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
 	/* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */
-	bfin_write_FIO_DIR(bfin_read_FIO_DIR() | (1 << CONFIG_ENET_FLASH_PIN));
-	bfin_write_FIO_FLAG_S(1 << CONFIG_ENET_FLASH_PIN);
+	bfin_write_FIO_DIR(bfin_read_FIO_DIR() | PF0);
+	bfin_write_FIO_FLAG_S(PF0);
 	SSYNC();
 #endif
 
@@ -636,8 +640,8 @@ arch_initcall(stamp_init);
 
 void native_machine_restart(char *cmd)
 {
-#define BIT_TO_SET (1 << CONFIG_ENET_FLASH_PIN)
-	bfin_write_FIO_INEN(~BIT_TO_SET);
-	bfin_write_FIO_DIR(BIT_TO_SET);
-	bfin_write_FIO_FLAG_C(BIT_TO_SET);
+	/* workaround pull up on cpld / flash pin not being strong enough */
+	bfin_write_FIO_INEN(~PF0);
+	bfin_write_FIO_DIR(PF0);
+	bfin_write_FIO_FLAG_C(PF0);
 }

drivers/serial/8250.c

@@ -43,6 +43,7 @@
 
 #include <asm/io.h>
 #include <asm/irq.h>
+#include <asm/serial.h>
 
 #include "8250.h"
 
@@ -92,8 +93,6 @@ static unsigned int nr_uarts = CONFIG_SERIAL_8250_RUNTIME_UARTS;
  */
 #define CONFIG_HUB6 1
 
-#include <asm/serial.h>
-
 /*
  * SERIAL_PORT_DFNS tells us about built-in ports that have no
  * standard enumeration mechanism.   Platforms that can find all
@@ -1548,6 +1547,8 @@ static int serial_link_irq_chain(struct uart_8250_port *up)
 		i->head = &up->list;
 		spin_unlock_irq(&i->lock);
 
+		irq_flags |= SERIAL_EXTRA_IRQ_FLAGS;
+
 		ret = request_irq(up->port.irq, serial8250_interrupt,
 				  irq_flags, "serial", i);
 		if (ret < 0)

drivers/serial/8250.h

@@ -78,3 +78,8 @@ struct serial8250_config {
 #else
 #define ALPHA_KLUDGE_MCR 0
 #endif
+
+#ifndef SERIAL_EXTRA_IRQ_FLAGS
+#define SERIAL_EXTRA_IRQ_FLAGS 0
+#endif
+

drivers/serial/Kconfig

@@ -1361,7 +1361,7 @@ config SERIAL_SC26XX_CONSOLE
 
 config SERIAL_BFIN_SPORT
 	tristate "Blackfin SPORT emulate UART (EXPERIMENTAL)"
-	depends on BFIN && EXPERIMENTAL
+	depends on BLACKFIN && EXPERIMENTAL
 	select SERIAL_CORE
 	help
 	  Enble support SPORT emulate UART on Blackfin series.

include/asm-blackfin/bfin-global.h

@@ -37,7 +37,9 @@
 #include <linux/linkage.h>
 #include <linux/types.h>
 
-#if defined(CONFIG_DMA_UNCACHED_2M)
+#if defined(CONFIG_DMA_UNCACHED_4M)
+# define DMA_UNCACHED_REGION (4 * 1024 * 1024)
+#elif defined(CONFIG_DMA_UNCACHED_2M)
 # define DMA_UNCACHED_REGION (2 * 1024 * 1024)
 #elif defined(CONFIG_DMA_UNCACHED_1M)
 # define DMA_UNCACHED_REGION (1024 * 1024)

include/asm-blackfin/checksum.h

@@ -15,7 +15,7 @@
  *
  * it's best to have buff aligned on a 32-bit boundary
  */
-unsigned int csum_partial(const unsigned char *buff, int len, unsigned int sum);
+__wsum csum_partial(const void *buff, int len, __wsum sum);
 
 /*
  * the same as csum_partial, but copies from src while it
@@ -25,8 +25,8 @@ unsigned int csum_partial(const unsigned char *buff, int len, unsigned int sum);
  * better 64-bit) boundary
  */
 
-unsigned int csum_partial_copy(const unsigned char *src, unsigned char *dst,
-			       int len, int sum);
+__wsum csum_partial_copy(const void *src, void *dst,
+			       int len, __wsum sum);
 
 /*
  * the same as csum_partial_copy, but copies from user space.
@@ -35,20 +35,19 @@ unsigned int csum_partial_copy(const unsigned char *src, unsigned char *dst,
  * better 64-bit) boundary
  */
 
-extern unsigned int csum_partial_copy_from_user(const unsigned char *src,
-						unsigned char *dst, int len,
-						int sum, int *csum_err);
+extern __wsum csum_partial_copy_from_user(const void __user *src, void *dst,
+					  int len, __wsum sum, int *csum_err);
 
 #define csum_partial_copy_nocheck(src, dst, len, sum)	\
 	csum_partial_copy((src), (dst), (len), (sum))
 
-unsigned short ip_fast_csum(unsigned char *iph, unsigned int ihl);
+__sum16 ip_fast_csum(unsigned char *iph, unsigned int ihl);
 
 /*
  *	Fold a partial checksum
  */
 
-static inline unsigned int csum_fold(unsigned int sum)
+static inline __sum16 csum_fold(__wsum sum)
 {
 	while (sum >> 16)
 		sum = (sum & 0xffff) + (sum >> 16);
@@ -60,9 +59,9 @@ static inline unsigned int csum_fold(unsigned int sum)
  * returns a 16-bit checksum, already complemented
  */
 
-static inline unsigned int
-csum_tcpudp_nofold(unsigned long saddr, unsigned long daddr, unsigned short len,
-		   unsigned short proto, unsigned int sum)
+static inline __wsum
+csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
+		   unsigned short proto, __wsum sum)
 {
 
 	__asm__ ("%0 = %0 + %1;\n\t"
@@ -84,9 +83,9 @@ csum_tcpudp_nofold(unsigned long saddr, unsigned long daddr, unsigned short len,
 	return (sum);
 }
 
-static inline unsigned short int
-csum_tcpudp_magic(unsigned long saddr, unsigned long daddr, unsigned short len,
-		  unsigned short proto, unsigned int sum)
+static inline __sum16
+csum_tcpudp_magic(__be32 saddr, __be32 daddr, unsigned short len,
+		  unsigned short proto, __wsum sum)
 {
 	return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
 }
@@ -96,6 +95,6 @@ csum_tcpudp_magic(unsigned long saddr, unsigned long daddr, unsigned short len,
  * in icmp.c
  */
 
-extern unsigned short ip_compute_csum(const unsigned char *buff, int len);
+extern __sum16 ip_compute_csum(const void *buff, int len);
 
 #endif				/* _BFIN_CHECKSUM_H */

include/asm-blackfin/gpio.h

@@ -437,7 +437,6 @@ void gpio_set_value(unsigned gpio, int arg);
 int gpio_get_value(unsigned gpio);
 
 #ifndef BF548_FAMILY
-#define gpio_get_value(gpio) 		get_gpio_data(gpio)
 #define gpio_set_value(gpio, value)	set_gpio_data(gpio, value)
 #endif
 

include/asm-blackfin/io.h

@@ -117,10 +117,12 @@ static inline unsigned int readl(const volatile void __iomem *addr)
 
 extern void outsb(unsigned long port, const void *addr, unsigned long count);
 extern void outsw(unsigned long port, const void *addr, unsigned long count);
+extern void outsw_8(unsigned long port, const void *addr, unsigned long count);
 extern void outsl(unsigned long port, const void *addr, unsigned long count);
 
 extern void insb(unsigned long port, void *addr, unsigned long count);
 extern void insw(unsigned long port, void *addr, unsigned long count);
+extern void insw_8(unsigned long port, void *addr, unsigned long count);
 extern void insl(unsigned long port, void *addr, unsigned long count);
 extern void insl_16(unsigned long port, void *addr, unsigned long count);
 

include/asm-blackfin/mach-bf527/blackfin.h

@@ -39,22 +39,22 @@
 #include "defBF522.h"
 #include "anomaly.h"
 
-#if defined(CONFIG_BF527)
+#if defined(CONFIG_BF527) || defined(CONFIG_BF526)
 #include "defBF527.h"
 #endif
 
-#if defined(CONFIG_BF525)
+#if defined(CONFIG_BF525) || defined(CONFIG_BF524)
 #include "defBF525.h"
 #endif
 
 #if !defined(__ASSEMBLY__)
 #include "cdefBF522.h"
 
-#if defined(CONFIG_BF527)
+#if defined(CONFIG_BF527) || defined(CONFIG_BF526)
 #include "cdefBF527.h"
 #endif
 
-#if defined(CONFIG_BF525)
+#if defined(CONFIG_BF525) || defined(CONFIG_BF524)
 #include "cdefBF525.h"
 #endif
 #endif

include/asm-blackfin/mach-bf561/dma.h

@@ -25,11 +25,11 @@
 #define CH_MEM_STREAM1_SRC      27	 /* RX */
 #define CH_MEM_STREAM2_DEST	28
 #define CH_MEM_STREAM2_SRC	29
-#define CH_MEM_STREAM3_SRC	30
-#define CH_MEM_STREAM3_DEST	31
+#define CH_MEM_STREAM3_DEST	30
+#define CH_MEM_STREAM3_SRC	31
 #define CH_IMEM_STREAM0_DEST	32
 #define CH_IMEM_STREAM0_SRC	33
-#define CH_IMEM_STREAM1_SRC	34
-#define CH_IMEM_STREAM1_DEST	35
+#define CH_IMEM_STREAM1_DEST	34
+#define CH_IMEM_STREAM1_SRC	35
 
 #endif

include/asm-blackfin/serial.h

+/*
+ * include/asm-blackfin/serial.h
+ */
+
+#define SERIAL_EXTRA_IRQ_FLAGS IRQF_TRIGGER_HIGH