Merge branch 'davinci-fixes' of git://gitorious.org/linux-davinci/linux-davinci into fixes

58 files changed, 324 insertions, 179 deletions

diff --git a/arch/alpha/kernel/Makefile b/arch/alpha/kernel/Makefile
index 9bb7b858ed2..7a6d908bb86 100644
--- a/arch/alpha/kernel/Makefile
+++ b/arch/alpha/kernel/Makefile
@@ -4,7 +4,7 @@
 
 extra-y		:= head.o vmlinux.lds
 asflags-y	:= $(KBUILD_CFLAGS)
-ccflags-y	:= -Werror -Wno-sign-compare
+ccflags-y	:= -Wno-sign-compare
 
 obj-y    := entry.o traps.o process.o init_task.o osf_sys.o irq.o \
 	    irq_alpha.o signal.o setup.o ptrace.o time.o \
diff --git a/arch/alpha/kernel/core_mcpcia.c b/arch/alpha/kernel/core_mcpcia.c
index 381fec0af52..da7bcc372f1 100644
--- a/arch/alpha/kernel/core_mcpcia.c
+++ b/arch/alpha/kernel/core_mcpcia.c
@@ -88,7 +88,7 @@ conf_read(unsigned long addr, unsigned char type1,
 {
 	unsigned long flags;
 	unsigned long mid = MCPCIA_HOSE2MID(hose->index);
-	unsigned int stat0, value, temp, cpu;
+	unsigned int stat0, value, cpu;
 
 	cpu = smp_processor_id();
 
@@ -101,7 +101,7 @@ conf_read(unsigned long addr, unsigned char type1,
 	stat0 = *(vuip)MCPCIA_CAP_ERR(mid);
 	*(vuip)MCPCIA_CAP_ERR(mid) = stat0;
 	mb();
-	temp = *(vuip)MCPCIA_CAP_ERR(mid);
+	*(vuip)MCPCIA_CAP_ERR(mid);
 	DBG_CFG(("conf_read: MCPCIA_CAP_ERR(%d) was 0x%x\n", mid, stat0));
 
 	mb();
@@ -136,7 +136,7 @@ conf_write(unsigned long addr, unsigned int value, unsigned char type1,
 {
 	unsigned long flags;
 	unsigned long mid = MCPCIA_HOSE2MID(hose->index);
-	unsigned int stat0, temp, cpu;
+	unsigned int stat0, cpu;
 
 	cpu = smp_processor_id();
 
@@ -145,7 +145,7 @@ conf_write(unsigned long addr, unsigned int value, unsigned char type1,
 	/* Reset status register to avoid losing errors.  */
 	stat0 = *(vuip)MCPCIA_CAP_ERR(mid);
 	*(vuip)MCPCIA_CAP_ERR(mid) = stat0; mb();
-	temp = *(vuip)MCPCIA_CAP_ERR(mid);
+	*(vuip)MCPCIA_CAP_ERR(mid);
 	DBG_CFG(("conf_write: MCPCIA CAP_ERR(%d) was 0x%x\n", mid, stat0));
 
 	draina();
@@ -157,7 +157,7 @@ conf_write(unsigned long addr, unsigned int value, unsigned char type1,
 	*((vuip)addr) = value;
 	mb();
 	mb();  /* magic */
-	temp = *(vuip)MCPCIA_CAP_ERR(mid); /* read to force the write */
+	*(vuip)MCPCIA_CAP_ERR(mid); /* read to force the write */
 	mcheck_expected(cpu) = 0;
 	mb();
 
@@ -572,12 +572,10 @@ mcpcia_print_system_area(unsigned long la_ptr)
 void
 mcpcia_machine_check(unsigned long vector, unsigned long la_ptr)
 {
-	struct el_common *mchk_header;
 	struct el_MCPCIA_uncorrected_frame_mcheck *mchk_logout;
 	unsigned int cpu = smp_processor_id();
 	int expected;
 
-	mchk_header = (struct el_common *)la_ptr;
 	mchk_logout = (struct el_MCPCIA_uncorrected_frame_mcheck *)la_ptr;
 	expected = mcheck_expected(cpu);
 
diff --git a/arch/alpha/kernel/err_titan.c b/arch/alpha/kernel/err_titan.c
index c3b3781a03d..14b26c466c8 100644
--- a/arch/alpha/kernel/err_titan.c
+++ b/arch/alpha/kernel/err_titan.c
@@ -533,8 +533,6 @@ static struct el_subpacket_annotation el_titan_annotations[] = {
 static struct el_subpacket *
 el_process_regatta_subpacket(struct el_subpacket *header)
 {
-	int status;
-
 	if (header->class != EL_CLASS__REGATTA_FAMILY) {
 		printk("%s  ** Unexpected header CLASS %d TYPE %d, aborting\n",
 		       err_print_prefix,
@@ -551,7 +549,7 @@ el_process_regatta_subpacket(struct el_subpacket *header)
 		printk("%s  ** Occurred on CPU %d:\n", 
 		       err_print_prefix,
 		       (int)header->by_type.regatta_frame.cpuid);
-		status = privateer_process_logout_frame((struct el_common *)
+		privateer_process_logout_frame((struct el_common *)
 			header->by_type.regatta_frame.data_start, 1);
 		break;
 	default:
diff --git a/arch/alpha/kernel/irq_alpha.c b/arch/alpha/kernel/irq_alpha.c
index 1479dc6ebd9..51b7fbd9e4c 100644
--- a/arch/alpha/kernel/irq_alpha.c
+++ b/arch/alpha/kernel/irq_alpha.c
@@ -228,7 +228,7 @@ struct irqaction timer_irqaction = {
 void __init
 init_rtc_irq(void)
 {
-	irq_set_chip_and_handler_name(RTC_IRQ, &no_irq_chip,
+	irq_set_chip_and_handler_name(RTC_IRQ, &dummy_irq_chip,
 				      handle_simple_irq, "RTC");
 	setup_irq(RTC_IRQ, &timer_irqaction);
 }
diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
index d2634e4476b..edbddcbd5bc 100644
--- a/arch/alpha/kernel/setup.c
+++ b/arch/alpha/kernel/setup.c
@@ -1404,8 +1404,6 @@ determine_cpu_caches (unsigned int cpu_type)
 	case PCA56_CPU:
 	case PCA57_CPU:
 	  {
-		unsigned long cbox_config, size;
-
 		if (cpu_type == PCA56_CPU) {
 			L1I = CSHAPE(16*1024, 6, 1);
 			L1D = CSHAPE(8*1024, 5, 1);
@@ -1415,10 +1413,12 @@ determine_cpu_caches (unsigned int cpu_type)
 		}
 		L3 = -1;
 
+#if 0
+		unsigned long cbox_config, size;
+
 		cbox_config = *(vulp) phys_to_virt (0xfffff00008UL);
 		size = 512*1024 * (1 << ((cbox_config >> 12) & 3));
 
-#if 0
 		L2 = ((cbox_config >> 31) & 1 ? CSHAPE (size, 6, 1) : -1);
 #else
 		L2 = external_cache_probe(512*1024, 6);
diff --git a/arch/alpha/kernel/smc37c93x.c b/arch/alpha/kernel/smc37c93x.c
index 3e6a2893af9..6886b834f48 100644
--- a/arch/alpha/kernel/smc37c93x.c
+++ b/arch/alpha/kernel/smc37c93x.c
@@ -79,7 +79,6 @@
 static unsigned long __init SMCConfigState(unsigned long baseAddr)
 {
 	unsigned char devId;
-	unsigned char devRev;
 
 	unsigned long configPort;
 	unsigned long indexPort;
@@ -100,7 +99,7 @@ static unsigned long __init SMCConfigState(unsigned long baseAddr)
 		devId = inb(dataPort);
 		if (devId == VALID_DEVICE_ID) {
 			outb(DEVICE_REV, indexPort);
-			devRev = inb(dataPort);
+			/* unsigned char devRev = */ inb(dataPort);
 			break;
 		}
 		else
diff --git a/arch/alpha/kernel/sys_wildfire.c b/arch/alpha/kernel/sys_wildfire.c
index d3cb28bb8eb..d92cdc715c6 100644
--- a/arch/alpha/kernel/sys_wildfire.c
+++ b/arch/alpha/kernel/sys_wildfire.c
@@ -156,7 +156,6 @@ static void __init
 wildfire_init_irq_per_pca(int qbbno, int pcano)
 {
 	int i, irq_bias;
-	unsigned long io_bias;
 	static struct irqaction isa_enable = {
 		.handler	= no_action,
 		.name		= "isa_enable",
@@ -165,10 +164,12 @@ wildfire_init_irq_per_pca(int qbbno, int pcano)
 	irq_bias = qbbno * (WILDFIRE_PCA_PER_QBB * WILDFIRE_IRQ_PER_PCA)
 		 + pcano * WILDFIRE_IRQ_PER_PCA;
 
+#if 0
+	unsigned long io_bias;
+
 	/* Only need the following for first PCI bus per PCA. */
 	io_bias = WILDFIRE_IO(qbbno, pcano<<1) - WILDFIRE_IO_BIAS;
 
-#if 0
 	outb(0, DMA1_RESET_REG + io_bias);
 	outb(0, DMA2_RESET_REG + io_bias);
 	outb(DMA_MODE_CASCADE, DMA2_MODE_REG + io_bias);
diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index a58e84f1a63..918e8e0b72f 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -153,6 +153,7 @@ void read_persistent_clock(struct timespec *ts)
 		year += 100;
 
 	ts->tv_sec = mktime(year, mon, day, hour, min, sec);
+	ts->tv_nsec = 0;
 }
 
 
diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index 32f147998cd..c0deacae778 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -63,6 +63,7 @@ config MACH_DAVINCI_EVM
 	depends on ARCH_DAVINCI_DM644x
 	select MISC_DEVICES
 	select EEPROM_AT24
+	select I2C
 	help
 	  Configure this option to specify the whether the board used
 	  for development is a DM644x EVM
@@ -72,6 +73,7 @@ config MACH_SFFSDR
 	depends on ARCH_DAVINCI_DM644x
 	select MISC_DEVICES
 	select EEPROM_AT24
+	select I2C
 	help
 	  Say Y here to select the Lyrtech Small Form Factor
 	  Software Defined Radio (SFFSDR) board.
@@ -105,6 +107,7 @@ config MACH_DAVINCI_DM6467_EVM
 	select MACH_DAVINCI_DM6467TEVM
 	select MISC_DEVICES
 	select EEPROM_AT24
+	select I2C
 	help
 	  Configure this option to specify the whether the board used
 	  for development is a DM6467 EVM
@@ -118,6 +121,7 @@ config MACH_DAVINCI_DM365_EVM
 	depends on ARCH_DAVINCI_DM365
 	select MISC_DEVICES
 	select EEPROM_AT24
+	select I2C
 	help
 	  Configure this option to specify whether the board used
 	  for development is a DM365 EVM
@@ -129,6 +133,7 @@ config MACH_DAVINCI_DA830_EVM
 	select GPIO_PCF857X
 	select MISC_DEVICES
 	select EEPROM_AT24
+	select I2C
 	help
 	  Say Y here to select the TI DA830/OMAP-L137/AM17x Evaluation Module.
 
@@ -205,6 +210,7 @@ config MACH_MITYOMAPL138
 	depends on ARCH_DAVINCI_DA850
 	select MISC_DEVICES
 	select EEPROM_AT24
+	select I2C
 	help
 	  Say Y here to select the Critical Link MityDSP-L138/MityARM-1808
 	  System on Module.  Information on this SoM may be found at
diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c
index 2aa79c54f98..606a6f27ed6 100644
--- a/arch/arm/mach-davinci/board-mityomapl138.c
+++ b/arch/arm/mach-davinci/board-mityomapl138.c
@@ -29,7 +29,7 @@
 #include <mach/mux.h>
 #include <mach/spi.h>
 
-#define MITYOMAPL138_PHY_ID		"0:03"
+#define MITYOMAPL138_PHY_ID		""
 
 #define FACTORY_CONFIG_MAGIC	0x012C0138
 #define FACTORY_CONFIG_VERSION	0x00010001
@@ -414,7 +414,7 @@ static struct resource mityomapl138_nandflash_resource[] = {
 
 static struct platform_device mityomapl138_nandflash_device = {
 	.name		= "davinci_nand",
-	.id		= 0,
+	.id		= 1,
 	.dev		= {
 		.platform_data	= &mityomapl138_nandflash_data,
 	},
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index 625d4b66718..58a02dc7b15 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -39,7 +39,8 @@
 #define DA8XX_GPIO_BASE			0x01e26000
 #define DA8XX_I2C1_BASE			0x01e28000
 #define DA8XX_SPI0_BASE			0x01c41000
-#define DA8XX_SPI1_BASE			0x01f0e000
+#define DA830_SPI1_BASE			0x01e12000
+#define DA850_SPI1_BASE			0x01f0e000
 
 #define DA8XX_EMAC_CTRL_REG_OFFSET	0x3000
 #define DA8XX_EMAC_MOD_REG_OFFSET	0x2000
@@ -762,8 +763,8 @@ static struct resource da8xx_spi0_resources[] = {
 
 static struct resource da8xx_spi1_resources[] = {
 	[0] = {
-		.start	= DA8XX_SPI1_BASE,
-		.end	= DA8XX_SPI1_BASE + SZ_4K - 1,
+		.start	= DA830_SPI1_BASE,
+		.end	= DA830_SPI1_BASE + SZ_4K - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
@@ -832,5 +833,10 @@ int __init da8xx_register_spi(int instance, struct spi_board_info *info,
 
 	da8xx_spi_pdata[instance].num_chipselect = len;
 
+	if (instance == 1 && cpu_is_davinci_da850()) {
+		da8xx_spi1_resources[0].start = DA850_SPI1_BASE;
+		da8xx_spi1_resources[0].end = DA850_SPI1_BASE + SZ_4K - 1;
+	}
+
 	return platform_device_register(&da8xx_spi_device[instance]);
 }
diff --git a/arch/arm/mach-davinci/include/mach/debug-macro.S b/arch/arm/mach-davinci/include/mach/debug-macro.S
index 9f1befc5ac3..f8b7ea4f623 100644
--- a/arch/arm/mach-davinci/include/mach/debug-macro.S
+++ b/arch/arm/mach-davinci/include/mach/debug-macro.S
@@ -24,6 +24,9 @@
 
 #define UART_SHIFT	2
 
+#define davinci_uart_v2p(x)	((x) - PAGE_OFFSET + PLAT_PHYS_OFFSET)
+#define davinci_uart_p2v(x)	((x) - PLAT_PHYS_OFFSET + PAGE_OFFSET)
+
 		.pushsection .data
 davinci_uart_phys:	.word	0
 davinci_uart_virt:	.word	0
@@ -34,7 +37,7 @@ davinci_uart_virt:	.word	0
 		/* Use davinci_uart_phys/virt if already configured */
 10:		mrc	p15, 0, \rp, c1, c0
 		tst	\rp, #1			@ MMU enabled?
-		ldreq	\rp, =__virt_to_phys(davinci_uart_phys)
+		ldreq	\rp, =davinci_uart_v2p(davinci_uart_phys)
 		ldrne	\rp, =davinci_uart_phys
 		add	\rv, \rp, #4		@ davinci_uart_virt
 		ldr	\rp, [\rp, #0]
@@ -48,18 +51,18 @@ davinci_uart_virt:	.word	0
 		tst	\rp, #1			@ MMU enabled?
 
 		/* Copy uart phys address from decompressor uart info */
-		ldreq	\rv, =__virt_to_phys(davinci_uart_phys)
+		ldreq	\rv, =davinci_uart_v2p(davinci_uart_phys)
 		ldrne	\rv, =davinci_uart_phys
 		ldreq	\rp, =DAVINCI_UART_INFO
-		ldrne	\rp, =__phys_to_virt(DAVINCI_UART_INFO)
+		ldrne	\rp, =davinci_uart_p2v(DAVINCI_UART_INFO)
 		ldr	\rp, [\rp, #0]
 		str	\rp, [\rv]
 
 		/* Copy uart virt address from decompressor uart info */
-		ldreq	\rv, =__virt_to_phys(davinci_uart_virt)
+		ldreq	\rv, =davinci_uart_v2p(davinci_uart_virt)
 		ldrne	\rv, =davinci_uart_virt
 		ldreq	\rp, =DAVINCI_UART_INFO
-		ldrne	\rp, =__phys_to_virt(DAVINCI_UART_INFO)
+		ldrne	\rp, =davinci_uart_p2v(DAVINCI_UART_INFO)
 		ldr	\rp, [\rp, #4]
 		str	\rp, [\rv]
 
diff --git a/arch/arm/mach-davinci/include/mach/serial.h b/arch/arm/mach-davinci/include/mach/serial.h
index 8051110b8ac..c9e6ce185a6 100644
--- a/arch/arm/mach-davinci/include/mach/serial.h
+++ b/arch/arm/mach-davinci/include/mach/serial.h
@@ -22,7 +22,7 @@
  *
  * This area sits just below the page tables (see arch/arm/kernel/head.S).
  */
-#define DAVINCI_UART_INFO	(PHYS_OFFSET + 0x3ff8)
+#define DAVINCI_UART_INFO	(PLAT_PHYS_OFFSET + 0x3ff8)
 
 #define DAVINCI_UART0_BASE	(IO_PHYS + 0x20000)
 #define DAVINCI_UART1_BASE	(IO_PHYS + 0x20400)
diff --git a/arch/arm/mach-msm/board-qsd8x50.c b/arch/arm/mach-msm/board-qsd8x50.c
index 7f568611547..6a96911b0ad 100644
--- a/arch/arm/mach-msm/board-qsd8x50.c
+++ b/arch/arm/mach-msm/board-qsd8x50.c
@@ -160,10 +160,7 @@ static struct msm_mmc_platform_data qsd8x50_sdc1_data = {
 
 static void __init qsd8x50_init_mmc(void)
 {
-	if (machine_is_qsd8x50_ffa() || machine_is_qsd8x50a_ffa())
-		vreg_mmc = vreg_get(NULL, "gp6");
-	else
-		vreg_mmc = vreg_get(NULL, "gp5");
+	vreg_mmc = vreg_get(NULL, "gp5");
 
 	if (IS_ERR(vreg_mmc)) {
 		pr_err("vreg get for vreg_mmc failed (%ld)\n",
diff --git a/arch/arm/mach-msm/timer.c b/arch/arm/mach-msm/timer.c
index 56f920c55b6..38b95e949d1 100644
--- a/arch/arm/mach-msm/timer.c
+++ b/arch/arm/mach-msm/timer.c
@@ -269,7 +269,7 @@ int __cpuinit local_timer_setup(struct clock_event_device *evt)
 
 	/* Use existing clock_event for cpu 0 */
 	if (!smp_processor_id())
-		return;
+		return 0;
 
 	writel(DGT_CLK_CTL_DIV_4, MSM_TMR_BASE + DGT_CLK_CTL);
 
diff --git a/arch/arm/mach-tegra/gpio.c b/arch/arm/mach-tegra/gpio.c
index 76a3f654220..65a1aba6823 100644
--- a/arch/arm/mach-tegra/gpio.c
+++ b/arch/arm/mach-tegra/gpio.c
@@ -257,7 +257,8 @@ static void tegra_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 void tegra_gpio_resume(void)
 {
 	unsigned long flags;
-	int b, p, i;
+	int b;
+	int p;
 
 	local_irq_save(flags);
 
@@ -280,7 +281,8 @@ void tegra_gpio_resume(void)
 void tegra_gpio_suspend(void)
 {
 	unsigned long flags;
-	int b, p, i;
+	int b;
+	int p;
 
 	local_irq_save(flags);
 	for (b = 0; b < ARRAY_SIZE(tegra_gpio_banks); b++) {
diff --git a/arch/arm/mach-tegra/tegra2_clocks.c b/arch/arm/mach-tegra/tegra2_clocks.c
index 6d7c4eea4dc..4459470c052 100644
--- a/arch/arm/mach-tegra/tegra2_clocks.c
+++ b/arch/arm/mach-tegra/tegra2_clocks.c
@@ -1362,14 +1362,15 @@ static int tegra_clk_shared_bus_set_rate(struct clk *c, unsigned long rate)
 {
 	unsigned long flags;
 	int ret;
+	long new_rate = rate;
 
-	rate = clk_round_rate(c->parent, rate);
-	if (rate < 0)
-		return rate;
+	new_rate = clk_round_rate(c->parent, new_rate);
+	if (new_rate < 0)
+		return new_rate;
 
 	spin_lock_irqsave(&c->parent->spinlock, flags);
 
-	c->u.shared_bus_user.rate = rate;
+	c->u.shared_bus_user.rate = new_rate;
 	ret = tegra_clk_shared_bus_update(c->parent);
 
 	spin_unlock_irqrestore(&c->parent->spinlock, flags);
diff --git a/arch/arm/plat-s5p/pm.c b/arch/arm/plat-s5p/pm.c
index d592b6304b4..d15dc47b0e3 100644
--- a/arch/arm/plat-s5p/pm.c
+++ b/arch/arm/plat-s5p/pm.c
@@ -19,17 +19,6 @@
 
 #define PFX "s5p pm: "
 
-/* s3c_pm_check_resume_pin
- *
- * check to see if the pin is configured correctly for sleep mode, and
- * make any necessary adjustments if it is not
-*/
-
-static void s3c_pm_check_resume_pin(unsigned int pin, unsigned int irqoffs)
-{
-	/* nothing here yet */
-}
-
 /* s3c_pm_configure_extint
  *
  * configure all external interrupt pins
diff --git a/arch/arm/plat-samsung/pm-check.c b/arch/arm/plat-samsung/pm-check.c
index e4baf76f374..6b733fafe7c 100644
--- a/arch/arm/plat-samsung/pm-check.c
+++ b/arch/arm/plat-samsung/pm-check.c
@@ -164,7 +164,6 @@ static inline int in_region(void *ptr, int size, void *what, size_t whatsz)
  */
 static u32 *s3c_pm_runcheck(struct resource *res, u32 *val)
 {
-	void *save_at = phys_to_virt(s3c_sleep_save_phys);
 	unsigned long addr;
 	unsigned long left;
 	void *stkpage;
@@ -192,11 +191,6 @@ static u32 *s3c_pm_runcheck(struct resource *res, u32 *val)
 			goto skip_check;
 		}
 
-		if (in_region(ptr, left, save_at, 32*4 )) {
-			S3C_PMDBG("skipping %08lx, has save block in\n", addr);
-			goto skip_check;
-		}
-
 		/* calculate and check the checksum */
 
 		calc = crc32_le(~0, ptr, left);
diff --git a/arch/arm/plat-samsung/pm.c b/arch/arm/plat-samsung/pm.c
index d5b58d31903..5c0a440d6e1 100644
--- a/arch/arm/plat-samsung/pm.c
+++ b/arch/arm/plat-samsung/pm.c
@@ -214,8 +214,9 @@ void s3c_pm_do_restore_core(struct sleep_save *ptr, int count)
  *
  * print any IRQs asserted at resume time (ie, we woke from)
 */
-static void s3c_pm_show_resume_irqs(int start, unsigned long which,
-				    unsigned long mask)
+static void __maybe_unused s3c_pm_show_resume_irqs(int start,
+						   unsigned long which,
+						   unsigned long mask)
 {
 	int i;
 
diff --git a/arch/avr32/include/asm/setup.h b/arch/avr32/include/asm/setup.h
index ff5b7cf6be4..160543dbec7 100644
--- a/arch/avr32/include/asm/setup.h
+++ b/arch/avr32/include/asm/setup.h
@@ -94,6 +94,13 @@ struct tag_ethernet {
 
 #define ETH_INVALID_PHY	0xff
 
+/* board information */
+#define ATAG_BOARDINFO	0x54410008
+
+struct tag_boardinfo {
+	u32	board_number;
+};
+
 struct tag {
 	struct tag_header hdr;
 	union {
@@ -102,6 +109,7 @@ struct tag {
 		struct tag_cmdline cmdline;
 		struct tag_clock clock;
 		struct tag_ethernet ethernet;
+		struct tag_boardinfo boardinfo;
 	} u;
 };
 
@@ -128,6 +136,7 @@ extern struct tag *bootloader_tags;
 
 extern resource_size_t fbmem_start;
 extern resource_size_t fbmem_size;
+extern u32 board_number;
 
 void setup_processor(void);
 
diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c
index 5c7083916c3..bb0974cce4a 100644
--- a/arch/avr32/kernel/setup.c
+++ b/arch/avr32/kernel/setup.c
@@ -391,6 +391,21 @@ static int __init parse_tag_clock(struct tag *tag)
 __tagtable(ATAG_CLOCK, parse_tag_clock);
 
 /*
+ * The board_number correspond to the bd->bi_board_number in U-Boot. This
+ * parameter is only available during initialisation and can be used in some
+