Merge branch 'master' of git://git.denx.de/u-boot-avr32

40 files changed, 294 insertions, 307 deletions

diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index d74e4b8415..da8ed72a11 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -35,6 +35,7 @@ endif
 obj-$(CONFIG_SEMIHOSTING) += semihosting.o
 
 obj-y	+= sections.o
+obj-y	+= stack.o
 ifdef CONFIG_ARM64
 obj-y	+= gic_64.o
 obj-y	+= interrupts_64.o
diff --git a/arch/arm/lib/stack.c b/arch/arm/lib/stack.c
new file mode 100644
index 0000000000..cf10a53ec6
--- /dev/null
+++ b/arch/arm/lib/stack.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2015 Andreas Bießmann <andreas.devel@googlemail.com>
+ *
+ * Copyright (c) 2011 The Chromium OS Authors.
+ * (C) Copyright 2002-2006
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int arch_reserve_stacks(void)
+{
+#ifdef CONFIG_SPL_BUILD
+	gd->start_addr_sp -= 128;	/* leave 32 words for abort-stack */
+	gd->irq_sp = gd->start_addr_sp;
+#else
+	/* setup stack pointer for exceptions */
+	gd->irq_sp = gd->start_addr_sp;
+
+# if !defined(CONFIG_ARM64)
+#  ifdef CONFIG_USE_IRQ
+	gd->start_addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
+	debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
+	      CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ, gd->start_addr_sp);
+
+	/* 8-byte alignment for ARM ABI compliance */
+	gd->start_addr_sp &= ~0x07;
+#  endif
+	/* leave 3 words for abort-stack, plus 1 for alignment */
+	gd->start_addr_sp -= 16;
+# endif
+#endif
+
+	return 0;
+}
diff --git a/arch/avr32/config.mk b/arch/avr32/config.mk
index 469185e8b4..8252f598c3 100644
--- a/arch/avr32/config.mk
+++ b/arch/avr32/config.mk
@@ -9,6 +9,9 @@ ifeq ($(CROSS_COMPILE),)
 CROSS_COMPILE := avr32-linux-
 endif
 
+# avr32 has generic board support
+__HAVE_ARCH_GENERIC_BOARD := y
+
 CONFIG_STANDALONE_LOAD_ADDR ?= 0x00000000
 
 PLATFORM_RELFLAGS	+= -ffixed-r5 -fPIC -mno-init-got -mrelax
diff --git a/arch/avr32/cpu/Makefile b/arch/avr32/cpu/Makefile
index 00cede3fd9..e111db3e75 100644
--- a/arch/avr32/cpu/Makefile
+++ b/arch/avr32/cpu/Makefile
@@ -16,5 +16,6 @@ obj-y			+= cache.o
 obj-y			+= interrupts.o
 obj-$(CONFIG_PORTMUX_PIO) += portmux-pio.o
 obj-$(CONFIG_PORTMUX_GPIO) += portmux-gpio.o
+obj-y += mmc.o
 
 obj-$(if $(filter at32ap700x,$(SOC)),y) += at32ap700x/
diff --git a/arch/avr32/cpu/at32ap700x/mmu.c b/arch/avr32/cpu/at32ap700x/mmu.c
index 0e28b21eef..f5e62f27eb 100644
--- a/arch/avr32/cpu/at32ap700x/mmu.c
+++ b/arch/avr32/cpu/at32ap700x/mmu.c
@@ -7,7 +7,7 @@ void mmu_init_r(unsigned long dest_addr)
 	uintptr_t	vmr_table_addr;
 
 	/* Round monitor address down to the nearest page boundary */
-	dest_addr &= PAGE_ADDR_MASK;
+	dest_addr &= MMU_PAGE_ADDR_MASK;
 
 	/* Initialize TLB entry 0 to cover the monitor, and lock it */
 	sysreg_write(TLBEHI, dest_addr | SYSREG_BIT(TLBEHI_V));
@@ -36,7 +36,7 @@ int mmu_handle_tlb_miss(void)
 	unsigned int fault_pgno;
 	int first, last;
 
-	fault_pgno = sysreg_read(TLBEAR) >> PAGE_SHIFT;
+	fault_pgno = sysreg_read(TLBEAR) >> MMU_PAGE_SHIFT;
 	vmr_table = (const struct mmu_vm_range *)sysreg_read(PTBR);
 
 	/* Do a binary search through the VM ranges */
@@ -60,8 +60,8 @@ int mmu_handle_tlb_miss(void)
 			/* Got it; let's slam it into the TLB */
 			uint32_t tlbelo;
 
-			tlbelo = vmr->phys & ~PAGE_ADDR_MASK;
-			tlbelo |= fault_pgno << PAGE_SHIFT;
+			tlbelo = vmr->phys & ~MMU_PAGE_ADDR_MASK;
+			tlbelo |= fault_pgno << MMU_PAGE_SHIFT;
 			sysreg_write(TLBELO, tlbelo);
 			__builtin_tlbw();
 
diff --git a/arch/avr32/cpu/cpu.c b/arch/avr32/cpu/cpu.c
index cef630ed45..cd226a6f71 100644
--- a/arch/avr32/cpu/cpu.c
+++ b/arch/avr32/cpu/cpu.c
@@ -27,7 +27,7 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-int cpu_init(void)
+int arch_cpu_init(void)
 {
 	extern void _evba(void);
 
diff --git a/arch/avr32/cpu/exception.c b/arch/avr32/cpu/exception.c
index 5d1bc689f8..d6991f6668 100644
--- a/arch/avr32/cpu/exception.c
+++ b/arch/avr32/cpu/exception.c
@@ -96,11 +96,11 @@ void do_unknown_exception(unsigned int ecr, struct pt_regs *regs)
 	printf("CPU Mode: %s\n", cpu_modes[mode]);
 
 	/* Avoid exception loops */
-	if (regs->sp < (gd->arch.stack_end - CONFIG_STACKSIZE)
-			|| regs->sp >= gd->arch.stack_end)
+	if (regs->sp < (gd->start_addr_sp - CONFIG_STACKSIZE) ||
+	    regs->sp >= gd->start_addr_sp)
 		printf("\nStack pointer seems bogus, won't do stack dump\n");
 	else
-		dump_mem("\nStack: ", regs->sp, gd->arch.stack_end);
+		dump_mem("\nStack: ", regs->sp, gd->start_addr_sp);
 
 	panic("Unhandled exception\n");
 }
diff --git a/arch/avr32/cpu/mmc.c b/arch/avr32/cpu/mmc.c
new file mode 100644
index 0000000000..b7213e4e7a
--- /dev/null
+++ b/arch/avr32/cpu/mmc.c
@@ -0,0 +1,16 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ * Copyright (C) 2015 Andreas Bießmann <andreas.devel@googlmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>
+#include <atmel_mci.h>
+#include <asm/arch/hardware.h>
+
+/* provide cpu_mmc_init, to overwrite provide board_mmc_init */
+int cpu_mmc_init(bd_t *bd)
+{
+	/* This calls the atmel_mci_init in gen_atmel_mci.c */
+	return atmel_mci_init((void *)ATMEL_BASE_MMCI);
+}
diff --git a/arch/avr32/cpu/u-boot.lds b/arch/avr32/cpu/u-boot.lds
index cb29a22b1e..b0180e3534 100644
--- a/arch/avr32/cpu/u-boot.lds
+++ b/arch/avr32/cpu/u-boot.lds
@@ -48,9 +48,11 @@ SECTIONS
 	_edata = .;
 
 	.bss (NOLOAD) : {
+		__bss_start = .;
 		*(.bss)
 		*(.bss.*)
 	}
 	. = ALIGN(8);
 	__bss_end = .;
+	__init_end = .;
 }
diff --git a/arch/avr32/include/asm/arch-at32ap700x/mmu.h b/arch/avr32/include/asm/arch-at32ap700x/mmu.h
index fcd9a05609..4736312f5d 100644
--- a/arch/avr32/include/asm/arch-at32ap700x/mmu.h
+++ b/arch/avr32/include/asm/arch-at32ap700x/mmu.h
@@ -13,9 +13,9 @@
 
 #include <asm/sysreg.h>
 
-#define PAGE_SHIFT	20
-#define PAGE_SIZE	(1UL << PAGE_SHIFT)
-#define PAGE_ADDR_MASK	(~(PAGE_SIZE - 1))
+#define MMU_PAGE_SHIFT	20
+#define MMU_PAGE_SIZE	(1UL << MMU_PAGE_SHIFT)
+#define MMU_PAGE_ADDR_MASK	(~(MMU_PAGE_SIZE - 1))
 
 #define MMU_VMR_CACHE_NONE						\
 	(SYSREG_BF(AP, 3) | SYSREG_BF(SZ, 3) | SYSREG_BIT(TLBELO_D))
diff --git a/arch/avr32/include/asm/config.h b/arch/avr32/include/asm/config.h
index 63056a4dfa..529fe227a6 100644
--- a/arch/avr32/include/asm/config.h
+++ b/arch/avr32/include/asm/config.h
@@ -8,5 +8,6 @@
 #define _ASM_CONFIG_H_
 
 #define CONFIG_NEEDS_MANUAL_RELOC
+#define CONFIG_SYS_GENERIC_GLOBAL_DATA
 
 #endif
diff --git a/arch/avr32/include/asm/dma-mapping.h b/arch/avr32/include/asm/dma-mapping.h
index dbdd2fee38..1cde8275f4 100644
--- a/arch/avr32/include/asm/dma-mapping.h
+++ b/arch/avr32/include/asm/dma-mapping.h
@@ -14,7 +14,12 @@ enum dma_data_direction {
 	DMA_TO_DEVICE		= 1,
 	DMA_FROM_DEVICE		= 2,
 };
-extern void *dma_alloc_coherent(size_t len, unsigned long *handle);
+
+static inline void *dma_alloc_coherent(size_t len, unsigned long *handle)
+{
+	*handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len);
+	return (void *)*handle;
+}
 
 static inline unsigned long dma_map_single(volatile void *vaddr, size_t len,
 					   enum dma_data_direction dir)
diff --git a/arch/avr32/include/asm/global_data.h b/arch/avr32/include/asm/global_data.h
index d82fb7cc6d..60abd00782 100644
--- a/arch/avr32/include/asm/global_data.h
+++ b/arch/avr32/include/asm/global_data.h
@@ -8,7 +8,6 @@
 
 /* Architecture-specific global data */
 struct arch_global_data {
-	unsigned long stack_end;	/* highest stack address */
 	unsigned long cpu_hz;		/* cpu core clock frequency */
 };
 
diff --git a/arch/avr32/include/asm/u-boot.h b/arch/avr32/include/asm/u-boot.h
index 6aef808749..8b047ec7c8 100644
--- a/arch/avr32/include/asm/u-boot.h
+++ b/arch/avr32/include/asm/u-boot.h
@@ -6,6 +6,11 @@
 #ifndef __ASM_U_BOOT_H__
 #define __ASM_U_BOOT_H__ 1
 
+#ifdef CONFIG_SYS_GENERIC_BOARD
+/* Use the generic board which requires a unified bd_info */
+#include <asm-generic/u-boot.h>
+#else
+
 typedef struct bd_info {
 	unsigned char		bi_phy_id[4];
 	unsigned long		bi_board_number;
@@ -22,7 +27,12 @@ typedef struct bd_info {
 #define bi_memstart bi_dram[0].start
 #define bi_memsize bi_dram[0].size
 
+#endif
+
 /* For image.h:image_check_target_arch() */
 #define IH_ARCH_DEFAULT IH_ARCH_AVR32
 
+int arch_cpu_init(void);
+int dram_init(void);
+
 #endif /* __ASM_U_BOOT_H__ */
diff --git a/arch/avr32/lib/Makefile b/arch/avr32/lib/Makefile
index bb45cbe153..6750913630 100644
--- a/arch/avr32/lib/Makefile
+++ b/arch/avr32/lib/Makefile
@@ -8,6 +8,9 @@
 #
 
 obj-y	+= memset.o
+ifndef CONFIG_SYS_GENERIC_BOARD
 obj-y	+= board.o
+endif
 obj-$(CONFIG_CMD_BOOTM) += bootm.o
 obj-y	+= interrupts.o
+obj-y	+= dram_init.o
diff --git a/arch/avr32/lib/board.c b/arch/avr32/lib/board.c
index bf0997f98d..99aa96e23f 100644
--- a/arch/avr32/lib/board.c
+++ b/arch/avr32/lib/board.c
@@ -9,7 +9,6 @@
 #include <stdio_dev.h>
 #include <version.h>
 #include <net.h>
-#include <atmel_mci.h>
 
 #ifdef CONFIG_BITBANGMII
 #include <miiphy.h>
@@ -30,6 +29,12 @@ DECLARE_GLOBAL_DATA_PTR;
 
 unsigned long monitor_flash_len;
 
+__weak void dram_init_banksize(void)
+{
+	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+	gd->bd->bi_dram[0].size =  gd->ram_size;
+}
+
 /* Weak aliases for optional board functions */
 static int __do_nothing(void)
 {
@@ -38,57 +43,6 @@ static int __do_nothing(void)
 int board_postclk_init(void) __attribute__((weak, alias("__do_nothing")));
 int board_early_init_r(void) __attribute__((weak, alias("__do_nothing")));
 
-/* provide cpu_mmc_init, to overwrite provide board_mmc_init */
-int cpu_mmc_init(bd_t *bd)
-{
-	/* This calls the atmel_mci_init in gen_atmel_mci.c */
-	return atmel_mci_init((void *)ATMEL_BASE_MMCI);
-}
-
-#ifdef CONFIG_SYS_DMA_ALLOC_LEN
-#include <asm/arch/cacheflush.h>
-#include <asm/io.h>
-
-static unsigned long dma_alloc_start;
-static unsigned long dma_alloc_end;
-static unsigned long dma_alloc_brk;
-
-static void dma_alloc_init(void)
-{
-	unsigned long monitor_addr;
-
-	monitor_addr = CONFIG_SYS_MONITOR_BASE + gd->reloc_off;
-	dma_alloc_end = monitor_addr - CONFIG_SYS_MALLOC_LEN;
-	dma_alloc_start = dma_alloc_end - CONFIG_SYS_DMA_ALLOC_LEN;
-	dma_alloc_brk = dma_alloc_start;
-
-	printf("DMA: Using memory from 0x%08lx to 0x%08lx\n",
-	       dma_alloc_start, dma_alloc_end);
-
-	invalidate_dcache_range((unsigned long)cached(dma_alloc_start),
-				dma_alloc_end);
-}
-
-void *dma_alloc_coherent(size_t len, unsigned long *handle)
-{
-	unsigned long paddr = dma_alloc_brk;
-
-	if (dma_alloc_brk + len > dma_alloc_end)
-		return NULL;
-
-	dma_alloc_brk = ((paddr + len + CONFIG_SYS_DCACHE_LINESZ - 1)
-			 & ~(CONFIG_SYS_DCACHE_LINESZ - 1));
-
-	*handle = paddr;
-	return uncached(paddr);
-}
-#else
-static inline void dma_alloc_init(void)
-{
-
-}
-#endif
-
 static int init_baudrate(void)
 {
 	gd->baudrate = getenv_ulong("baudrate", 10, CONFIG_BAUDRATE);
@@ -134,7 +88,6 @@ void board_init_f(ulong board_type)
 	unsigned long monitor_len;
 	unsigned long monitor_addr;
 	unsigned long addr;
-	long sdram_size;
 
 	/* Initialize the global data pointer */
 	memset(&gd_data, 0, sizeof(gd_data));
@@ -142,17 +95,17 @@ void board_init_f(ulong board_type)
 
 	/* Perform initialization sequence */
 	board_early_init_f();
-	cpu_init();
+	arch_cpu_init();
 	board_postclk_init();
 	env_init();
 	init_baudrate();
 	serial_init();
 	console_init_f();
 	display_banner();
-	sdram_size = initdram(board_type);
+	dram_init();
 
 	/* If we have no SDRAM, we can't go on */
-	if (sdram_size <= 0)
+	if (gd->ram_size <= 0)
 		panic("No working SDRAM available\n");
 
 	/*
@@ -166,7 +119,7 @@ void board_init_f(ulong board_type)
 	 *  - global data struct
 	 *  - stack
 	 */
-	addr = CONFIG_SYS_SDRAM_BASE + sdram_size;
+	addr = CONFIG_SYS_SDRAM_BASE + gd->ram_size;
 	monitor_len = (char *)(&__bss_end) - _text;
 
 	/*
@@ -180,12 +133,6 @@ void board_init_f(ulong board_type)
 	/* Reserve memory for malloc() */
 	addr -= CONFIG_SYS_MALLOC_LEN;
 
-#ifdef CONFIG_SYS_DMA_ALLOC_LEN
-	/* Reserve DMA memory (must be cache aligned) */
-	addr &= ~(CONFIG_SYS_DCACHE_LINESZ - 1);
-	addr -= CONFIG_SYS_DMA_ALLOC_LEN;
-#endif
-
 #ifdef CONFIG_LCD
 #ifdef CONFIG_FB_ADDR
 	printf("LCD: Frame buffer allocated at preset 0x%08x\n",
@@ -210,16 +157,11 @@ void board_init_f(ulong board_type)
 
 	/* And finally, a new, bigger stack. */
 	new_sp = (unsigned long *)addr;
-	gd->arch.stack_end = addr;
+	gd->start_addr_sp = addr;
 	*(--new_sp) = 0;
 	*(--new_sp) = 0;
 
-	/*
-	 * Initialize the board information struct with the
-	 * information we have.
-	 */
-	bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
-	bd->bi_dram[0].size = sdram_size;
+	dram_init_banksize();
 
 	memcpy(new_gd, gd, sizeof(gd_t));
 
@@ -264,7 +206,6 @@ void board_init_r(gd_t *new_gd, ulong dest_addr)
 	/* The malloc area is right below the monitor image in RAM */
 	mem_malloc_init(CONFIG_SYS_MONITOR_BASE + gd->reloc_off -
 			CONFIG_SYS_MALLOC_LEN, CONFIG_SYS_MALLOC_LEN);
-	dma_alloc_init();
 
 	enable_interrupts();
 
diff --git a/arch/avr32/lib/dram_init.c b/arch/avr32/lib/dram_init.c
new file mode 100644
index 0000000000..5078e77f17
--- /dev/null
+++ b/arch/avr32/lib/dram_init.c
@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2015 Andreas Bießmann <andreas.devel@googlemail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int dram_init(void)
+{
+	/* check for the maximum amount of memory possible on AP7000 devices */
+	gd->ram_size = get_ram_size(
+		(void *)CONFIG_SYS_SDRAM_BASE,
+		(256<<20));
+	return 0;
+}
diff --git a/arch/avr32/lib/interrupts.c b/arch/avr32/lib/interrupts.c
index bacb2d186a..5f3a49e152 100644
--- a/arch/avr32/lib/interrupts.c
+++ b/arch/avr32/lib/interrupts.c
@@ -7,6 +7,11 @@
 
 #include <asm/sysreg.h>
 
+int interrupt_init(void)
+{
+	return 0;
+}
+
 void enable_interrupts(void)
 {
 	asm volatile("csrf	%0" : : "n"(SYSREG_GM_OFFSET));
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 0f6298269a..05b22bb5f7 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -40,6 +40,7 @@ obj-y	+= extable.o
 obj-y	+= interrupts.o
 obj-$(CONFIG_CMD_KGDB) += kgdb.o
 obj-$(CONFIG_CMD_IDE) += ide.o
+obj-y	+= stack.o
 obj-y	+= time.o
 
 # Don't include the MPC5xxx special memcpy into the
diff --git a/arch/powerpc/lib/stack.c b/arch/powerpc/lib/stack.c
new file mode 100644
index 0000000000..1985f0348d
--- /dev/null
+++ b/arch/powerpc/lib/stack.c
@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2015 Andreas Bießmann <andreas.devel@googlemail.com>
+ *
+ * Copyright (c) 2011 The Chromium OS Authors.
+ * (C) Copyright 2002-2006
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int arch_reserve_stacks(void)
+{
+	ulong *s;
+
+	/* setup stack pointer for exceptions */
+	gd->irq_sp = gd->start_addr_sp;
+
+	/* Clear initial stack frame */
+	s = (ulong *)gd->start_addr_sp;
+	*s = 0; /* Terminate back chain */
+	*++s = 0; /* NULL return address */
+
+	return 0;
+}
diff --git a/board/atmel/atngw100/atngw100.c b/board/atmel/atngw100/atngw100.c
index 03d767a4a8..dacd427831 100644
--- a/board/atmel/atngw100/atngw100.c
+++ b/board/atmel/atngw100/atngw100.c
@@ -18,14 +18,14 @@ DECLARE_GLOBAL_DATA_PTR;
 
 struct mmu_vm_range mmu_vmr_table[CONFIG_SYS_NR_VM_REGIONS] = {
 	{
-		.virt_pgno	= CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT,
-		.nr_pages	= CONFIG_SYS_FLASH_SIZE >> PAGE_SHIFT,
-		.phys		= (CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT)
+		.virt_pgno	= CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT,
+		.nr_pages	= CONFIG_SYS_FLASH_SIZE >> MMU_PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT)
 					| MMU_VMR_CACHE_NONE,
 	}, {
-		.virt_pgno	= CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT,
-		.nr_pages	= EBI_SDRAM_SIZE >> PAGE_SHIFT,
-		.phys		= (CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT)
+		.virt_pgno	= CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT,
+		.nr_pages	= EBI_SDRAM_SIZE >> MMU_PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT)
 					| MMU_VMR_CACHE_WRBACK,
 	},
 };
@@ -52,6 +52,8 @@ int board_early_init_f(void)
 	hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
 
 	portmux_enable_ebi(16, 23, 0, PORTMUX_DRIVE_HIGH);
+	sdram_init(uncached(EBI_SDRAM_BASE), &sdram_config);
+
 	portmux_enable_usart1(PORTMUX_DRIVE_MIN);
 
 #if defined(CONFIG_MACB)
@@ -68,24 +70,6 @@ int board_early_init_f(void)
 	return 0;
 }
 
-phys_size_t initdram(int board_type)
-{
-	unsigned long expected_size;
-	unsigned long actual_size;
-	void *sdram_base;
-
-	sdram_base = uncached(EBI_SDRAM_BASE);
-
-	expected_size = sdram_init(sdram_base, &sdram_config);
-	actual_size = get_ram_size(sdram_base, expected_size);
-
-	if (expected_size != actual_size)
-		printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
-				actual_size >> 20, expected_size >> 20);
-
-	return actual_size;
-}
-
 int board_early_init_r(void)
 {
 	gd->bd->bi_phy_id[0] = 0x01;
diff --git a/board/atmel/atngw100mkii/atngw100mkii.c b/board/atmel/atngw100mkii/atngw100mkii.c
index 72d19e430e..8e215d5fcf 100644
--- a/board/atmel/atngw100mkii/atngw100mkii.c
+++ b/board/atmel/atngw100mkii/atngw100mkii.c
@@ -23,21 +23,21 @@ DECLARE_GLOBAL_DATA_PTR;
 struct mmu_vm_range mmu_vmr_table[CONFIG_SYS_NR_VM_REGIONS] = {
 	{
 		/* Atmel AT49BV640D 8 MiB x16 NOR flash on NCS0 */
-		.virt_pgno	= CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT,
-		.nr_pages	= CONFIG_SYS_FLASH_SIZE >> PAGE_SHIFT,
-		.phys		= (CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT)
+		.virt_pgno	= CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT,
+		.nr_pages	= CONFIG_SYS_FLASH_SIZE >> MMU_PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT)
 					| MMU_VMR_CACHE_NONE,
 	}, {
 		/* Micron MT29F2G16AAD 256 MiB x16 NAND flash on NCS3 */
-		.virt_pgno	= EBI_SRAM_CS3_BASE >> PAGE_SHIFT,
-		.nr_pages	= EBI_SRAM_CS3_SIZE >> PAGE_SHIFT,
-		.phys		= (EBI_SRAM_CS3_BASE >> PAGE_SHIFT)
+		.virt_pgno	= EBI_SRAM_CS3_BASE >> MMU_PAGE_SHIFT,
+		.nr_pages	= EBI_SRAM_CS3_SIZE >> MMU_PAGE_SHIFT,
+		.phys		= (EBI_SRAM_CS3_BASE >> MMU_PAGE_SHIFT)
 					| MMU_VMR_CACHE_NONE,
 	}, {
 		/* 2x16-bit ISSI IS42S16320B 64 MiB SDRAM (128 MiB total) */
-		.virt_pgno	= CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT,
-		.nr_pages	= EBI_SDRAM_SIZE >> PAGE_SHIFT,
-		.phys		= (CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT)
+		.virt_pgno	= CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT,
+		.nr_pages	= EBI_SDRAM_SIZE >> MMU_PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT)
 					| MMU_VMR_CACHE_WRBACK,
 	},
 };
@@ -69,6 +69,9 @@ int board_early_init_f(void)
 	portmux_select_gpio(PORTMUX_PORT_E, 1 << 23,
 			PORTMUX_DIR_OUTPUT | PORTMUX_INIT_HIGH
 			| PORTMUX_DRIVE_MIN);
+
+	sdram_init(uncached(EBI_SDRAM_BASE), &sdram_config);
+
 	portmux_enable_usart1(PORTMUX_DRIVE_MIN);
 
 #if defined(CONFIG_MACB)
@@ -85,24 +88,6 @@ int board_early_init_f(void)
 	return 0;
 }
 
-phys_size_t initdram(int board_type)
-{
-	unsigned long expected_size;
-	unsigned long actual_size;
-	void *sdram_base;
-
-	sdram_base = uncached(EBI_SDRAM_BASE);
-
-	expected_size = sdram_init(sdram_base, &sdram_config);
-	actual_size = get_ram_size(sdram_base, expected_size);
-
-	if (expected_size != actual_size)
-		printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
-				actual_size >> 20, expected_size >> 20);
-
-	return actual_size;
-}
-
 int board_early_init_r(void)
 {
 	gd->bd->bi_phy_id[0] = 0x01;
diff --git a/board/atmel/atstk1000/atstk1000.c b/board/atmel/atstk1000/atstk1000.c
index 4b6b90f683..fd4363bece 100644
--- a/board/atmel/atstk1000/atstk1000.c
+++ b/board/atmel/atstk1000/atstk1000.c
@@ -17,14 +17,14 @@ DECLARE_GLOBAL_DATA_PTR;
 
 struct mmu_vm_range mmu_vmr_table[CONFIG_SYS_NR_VM_REGIONS] = {
 	{
-		.virt_pgno	= CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT,
-		.nr_pages	= CONFIG_SYS_FLASH_SIZE >> PAGE_SHIFT,
-		.phys		= (CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT)
+		.virt_pgno	= CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT,
+		.nr_pages	= CONFIG_SYS_FLASH_SIZE >> MMU_PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT)
 					| MMU_VMR_CACHE_NONE,
 	}, {
-		.virt_pgno	= CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT,
-		.nr_pages	= EBI_SDRAM_SIZE >> PAGE_SHIFT,
-		.phys		= (CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT)
+		.virt_pgno	= CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT,
+		.nr_pages	= EBI_SDRAM_SIZE >> MMU_PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT)
 					| MMU_VMR_CACHE_WRBACK,
 	},
 };
@@ -78,7 +78,10 @@ int board_early_init_f(void)
 	hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
 
 	portmux_enable_ebi(sdram_config.data_bits, 23, 0, PORTMUX_DRIVE_HIGH);
+	sdram_init(uncached(EBI_SDRAM_BASE), &sdram_config);
+
 	portmux_enable_usart1(PORTMUX_DRIVE_MIN);
+
 #if defined(CONFIG_MACB)
 	portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_LOW);
 	portmux_enable_macb1(PORTMUX_MACB_MII, PORTMUX_DRIVE_LOW);
@@ -90,24 +93,6 @@ int board_early_init_f(void)
 	return 0;
 }
 
-phys_size_t initdram(int board_type)
-{
-	unsigned long expected_size;
-	unsigned long actual_size;
-	void *sdram_base;
-
-	sdram_base = uncached(EBI_SDRAM_BASE);
-
-	expected_size = sdram_init(sdram_base, &sdram_config);
-	actual_size = get_ram_size(sdram_base, expected_size);
-
-	if (expected_size != actual_size)
-		printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
-				actual_size >> 20, expected_size >> 20);
-
-	return actual_size;
-}
-
 int board_early_init_r(void)
 {
 	gd->bd->bi_phy_id[0] = 0x10;
diff --git a/board/earthlcd/favr-32-ezkit/favr-32-ezkit.c b/board/earthlcd/favr-32-ezkit/favr-32-ezkit.c
index a74547bf65..f9ac330c33 100644
--- a/board/earthlcd/favr-32-ezkit/favr-32-ezkit.c
+++ b/board/earthlcd/favr-32-ezkit/favr-32-ezkit.c
@@ -17,14 +17,14 @@ DECLARE_GLOBAL_DATA_PTR;
 
 struct mmu_vm_range mmu_vmr_table[CONFIG_SYS_NR_VM_REGIONS] = {
 	{
-		.virt_pgno	= CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT,
-		.nr_pages	= CONFIG_SYS_FLASH_SIZE >> PAGE_SHIFT,
-		.phys		= (CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT)
+		.virt_pgno	= CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT,
+		.nr_pages	= CONFIG_SYS_FLASH_SIZE >> MMU_PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT)
 					| MMU_VMR_CACHE_NONE,
 	}, {
-		.virt_pgno	= CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT,
-		.nr_pages	= EBI_SDRAM_SIZE >> PAGE_SHIFT,
-		.phys		= (CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT)
+		.virt_pgno	= CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT,
+		.nr_pages	= EBI_SDRAM_SIZE >> MMU_PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT)
 					| MMU_VMR_CACHE_WRBACK,
 	},
 };
@@ -52,6 +52,9 @@ int board_early_init_f(void)
 	hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
 
 	portmux_enable_ebi(32, 23, 0, PORTMUX_DRIVE_HIGH);
+
+	sdram_init(uncached(EBI_SDRAM_BASE), &sdram_config);
+
 	portmux_enable_usart3(PORTMUX_DRIVE_MIN);
 #if defined(CONFIG_MACB)
 	portmux_enable_macb0(PORTMUX_MACB_MII, PORTMUX_DRIVE_HIGH);
@@ -63,24 +66,6 @@ int board_early_init_f(void)
 	return 0;
 }
 
-phys_size_t initdram(int board_type)
-{
-	unsigned long expected_size;
-	unsigned long actual_size;
-	void *sdram_base;
-
-	sdram_base = uncached(EBI_SDRAM_BASE);
-
-	expected_size = sdram_init(sdram_base, &sdram_config);
-	actual_size = get_ram_size(sdram_base, expected_size);
-
-	if (expected_size != actual_size)
-		printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
-				actual_size >> 20, expected_size >> 20);
-
-	return actual_size;
-}
-
 int board_early_init_r(void)
 {
 	gd->bd->bi_phy_id[0] = 0x01;
diff --git a/board/in-circuit/grasshopper/grasshopper.c b/board/in-circuit/grasshopper/grasshopper.c
index 340b713188..91b41162de 100644
--- a/board/in-circuit/grasshopper/grasshopper.c
+++ b/board/in-circuit/grasshopper/grasshopper.c
@@ -18,14 +18,14 @@ DECLARE_GLOBAL_DATA_PTR;
 
 struct mmu_vm_range mmu_vmr_table[CONFIG_SYS_NR_VM_REGIONS] = {
 	{
-		.virt_pgno	= CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT,
-		.nr_pages	= CONFIG_SYS_FLASH_SIZE >> PAGE_SHIFT,
-		.phys		= (CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT)
+		.virt_pgno	= CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT,
+		.nr_pages	= CONFIG_SYS_FLASH_SIZE >> MMU_PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT)
 				| MMU_VMR_CACHE_NONE,
 	}, {
-		.virt_pgno	= CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT,
-		.nr_pages	= EBI_SDRAM_SIZE >> PAGE_SHIFT,
-		.phys		= (CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT)
+		.virt_pgno	= CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT,
+		.nr_pages	= EBI_SDRAM_SIZE >> MMU_PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT)
 				| MMU_VMR_CACHE_WRBACK,
 	},
 };
@@ -53,6 +53,8 @@ int board_early_init_f(void)
 	hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
 
 	portmux_enable_ebi(SDRAM_DATA_32BIT, 23, 0, PORTMUX_DRIVE_HIGH);
+	sdram_init(uncached(EBI_SDRAM_BASE), &sdram_config);
+
 	portmux_enable_usart0(PORTMUX_DRIVE_MIN);
 	portmux_enable_usart1(PORTMUX_DRIVE_MIN);
 #if defined(CONFIG_MACB)
@@ -69,24 +71,6 @@ int board_early_init_f(void)
 	return 0;
 }
 
-phys_size_t initdram(int board_type)
-{
-	unsigned long expected_size;
-	unsigned long actual_size;
-	void *sdram_base;
-
-	sdram_base = uncached(EBI_SDRAM_BASE);
-
-	expected_size = sdram_init(sdram_base, &sdram_config);
-	actual_size = get_ram_size(sdram_base, expected_size);
-
-	if (expected_size != actual_size)
-		printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
-				actual_size >> 20, expected_size >> 20);
-
-	return actual_size;
-}
-
 int board_early_init_r(void)
 {
 	gd->bd->bi_phy_id[0] = 0x00;
diff --git a/board/mimc/mimc200/mimc200.c b/board/mimc/mimc200/mimc200.c
index 2ad53ec2ab..f078295508 100644
--- a/board/mimc/mimc200/mimc200.c
+++ b/board/mimc/mimc200/mimc200.c
@@ -20,19 +20,19 @@
 
 struct mmu_vm_range mmu_vmr_table[CONFIG_SYS_NR_VM_REGIONS] = {
 	{
-		.virt_pgno	= CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT,
-		.nr_pages	= CONFIG_SYS_FLASH_SIZE >> PAGE_SHIFT,
-		.phys		= (CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT)
+		.virt_pgno	= CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT,
+		.nr_pages	= CONFIG_SYS_FLASH_SIZE >> MMU_PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT)
 					| MMU_VMR_CACHE_NONE,
 	}, {
-		.virt_pgno	= EBI_SRAM_CS2_BASE >> PAGE_SHIFT,
-		.nr_pages	= EBI_SRAM_CS2_SIZE >> PAGE_SHIFT,
-		.phys		= (EBI_SRAM_CS2_BASE >> PAGE_SHIFT)
+		.virt_pgno	= EBI_SRAM_CS2_BASE >> MMU_PAGE_SHIFT,
+		.nr_pages	= EBI_SRAM_CS2_SIZE >> MMU_PAGE_SHIFT,
+		.phys		= (EBI_SRAM_CS2_BASE >> MMU_PAGE_SHIFT)
 					| MMU_VMR_CACHE_NONE,
 	}, {
-		.virt_pgno	= CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT,
-		.nr_pages	= EBI_SDRAM_SIZE >> PAGE_SHIFT,
-		.phys		= (CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT)
+		.virt_pgno	= CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT,
+		.nr_pages	= EBI_SDRAM_SIZE >> MMU_PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT)
 					| MMU_VMR_CACHE_WRBACK,
 	},
 };
@@ -91,6 +91,8 @@ int board_early_init_f(void)
 
 	/* Enable 26 address bits and NCS2 */
 	portmux_enable_ebi(16, 26, PORTMUX_EBI_CS(2), PORTMUX_DRIVE_HIGH);
+	sdram_init(uncached(EBI_SDRAM_BASE), &sdram_config);
+
 	portmux_enable_usart1(PORTMUX_DRIVE_MIN);
 
 	/* de-assert "force sys reset" pin */
@@ -151,24 +153,6 @@ int board_early_init_f(void)
 	return 0;
 }
 
-phys_size_t initdram(int board_type)
-{
-	unsigned long expected_size;
-	unsigned long actual_size;
-	void *sdram_base;
-
-	sdram_base = uncached(EBI_SDRAM_BASE);
-
-	expected_size = sdram_init(sdram_base, &sdram_config);
-	actual_size = get_ram_size(sdram_base, expected_size);
-
-	if (expected_size != actual_size)
-		printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
-				actual_size >> 20, expected_size >> 20);
-
-	return actual_size;
-}
-
 int board_early_init_r(void)
 {
 	gd->bd->bi_phy_id[0] = 0x01;
diff --git a/board/miromico/hammerhead/hammerhead.c b/board/miromico/hammerhead/hammerhead.c
index d82fee7b90..a0c7d3b323 100644
--- a/board/miromico/hammerhead/hammerhead.c
+++ b/board/miromico/hammerhead/hammerhead.c
@@ -21,14 +21,14 @@ DECLARE_GLOBAL_DATA_PTR;
 
 struct mmu_vm_range mmu_vmr_table[CONFIG_SYS_NR_VM_REGIONS] = {
 	{
-		.virt_pgno	= CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT,
-		.nr_pages	= CONFIG_SYS_FLASH_SIZE >> PAGE_SHIFT,
-		.phys		= (CONFIG_SYS_FLASH_BASE >> PAGE_SHIFT)
+		.virt_pgno	= CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT,
+		.nr_pages	= CONFIG_SYS_FLASH_SIZE >> MMU_PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_FLASH_BASE >> MMU_PAGE_SHIFT)
 					| MMU_VMR_CACHE_NONE,
 	}, {
-		.virt_pgno	= CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT,
-		.nr_pages	= EBI_SDRAM_SIZE >> PAGE_SHIFT,
-		.phys		= (CONFIG_SYS_SDRAM_BASE >> PAGE_SHIFT)
+		.virt_pgno	= CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT,
+		.nr_pages	= EBI_SDRAM_SIZE >> MMU_PAGE_SHIFT,
+		.phys		= (CONFIG_SYS_SDRAM_BASE >> MMU_PAGE_SHIFT)
 					| MMU_VMR_CACHE_WRBACK,
 	},
 };
@@ -63,6 +63,8 @@ int board_early_init_f(void)
 	hmatrix_slave_write(EBI, SFR, HMATRIX_BIT(EBI_SDRAM_ENABLE));
 
 	portmux_enable_ebi(32, 23, 0, PORTMUX_DRIVE_HIGH);
+	sdram_init(uncached(EBI_SDRAM_BASE), &sdram_config);
+
 	portmux_enable_usart1(PORTMUX_DRIVE_MIN);
 
 #if defined(CONFIG_MACB)
@@ -74,24 +76,6 @@ int board_early_init_f(void)
 	return 0;
 }
 
-phys_size_t initdram(int board_type)
-{
-	unsigned long expected_size;
-	unsigned long actual_size;
-	void *sdram_base;
-
-	sdram_base = uncached(EBI_SDRAM_BASE);
-
-	expected_size = sdram_init(sdram_base, &sdram_config);
-	actual_size = get_ram_size(sdram_base, expected_size);
-
-	if (expected_size != actual_size)
-		printf("Warning: Only %lu of %lu MiB SDRAM is working\n",
-		       actual_size >> 20, expected_size >> 20);
-
-	return actual_size;
-}
-
 int board_early_init_r(void)
 {
 	gd->bd->bi_phy_id[0] = 0x01;
diff --git a/common/board_f.c b/common/board_f.c
index 2c10215a17..4d8b8a626b 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -573,48 +573,22 @@ static int reserve_fdt(void)
 	return 0;
 }
 
-static int reserve_stacks(void)
+int arch_reserve_stacks(void)
 {
-#ifdef CONFIG_SPL_BUILD
-# ifdef CONFIG_ARM
-	gd->start_addr_sp -= 128;	/* leave 32 words for abort-stack */
-	gd->irq_sp = gd->start_addr_sp;
-# endif
-#else
-# ifdef CONFIG_PPC
-	ulong *s;
-# endif
+	return 0;
+}
 
-	/* setup stack pointer for exceptions */
+static int reserve_stacks(void)
+{
+	/* make stack pointer 16-byte aligned */
 	gd->start_addr_sp -= 16;
 	gd->start_addr_sp &= ~0xf;
-	gd->irq_sp = gd->start_addr_sp;
 
 	/*
-	 * Handle architecture-specific things here
-	 * TODO(sjg@chromium.org): Perhaps create arch_reserve_stack()
-	 * to handle this and put in arch/xxx/lib/stack.c
+	 * let the architecture specific code tailor gd->start_addr_sp and
+	 * gd->irq_sp
 	 */
-# if defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
-#  ifdef CONFIG_USE_IRQ
-	gd->start_addr_sp -= (CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ);
-	debug("Reserving %zu Bytes for IRQ stack at: %08lx\n",
-		CONFIG_STACKSIZE_IRQ + CONFIG_STACKSIZE_FIQ, gd->start_addr_sp);
-
-	/* 8-byte alignment for ARM ABI compliance */
-	gd->start_addr_sp &= ~0x07;
-#  endif
-	/* leave 3 words for abort-stack, plus 1 for alignment */
-	gd->start_addr_sp -= 16;
-# elif defined(CONFIG_PPC)
-	/* Clear initial stack frame */
-	s = (ulong *) gd->start_addr_sp;
-	*s = 0; /* Terminate back chain */
-	*++s = 0; /* NULL return address */
-# endif /* Architecture specific code */
-
-	return 0;
-#endif
+	return arch_reserve_stacks();
 }
 
 static int display_new_sp(void)
@@ -909,7 +883,7 @@ static init_fnc_t init_sequence_f[] = {
 #endif
 	announce_dram_init,
 	/* TODO: unify all these dram functions? */
-#if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_MICROBLAZE)
+#if defined(CONFIG_ARM) || defined(CONFIG_X86) || defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32)
 	dram_init,		/* configure available RAM banks */
 #endif
 #if defined(CONFIG_MIPS) || defined(CONFIG_PPC)
diff --git a/common/board_r.c b/common/board_r.c
index 907b33cca7..4fcd4f6a70 100644
--- a/common/board_r.c
+++ b/common/board_r.c
@@ -55,6 +55,9 @@
 #include <dm/root.h>
 #include <linux/compiler.h>
 #include <linux/err.h>
+#ifdef CONFIG_AVR32
+#include <asm/arch/mmu.h>
+#endif
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -459,6 +462,18 @@ static int initr_env(void)
 	return 0;
 }
 
+#ifdef CONFIG_SYS_BOOTPARAMS_LEN
+static int initr_malloc_bootparams(void)
+{
+	gd->bd->bi_boot_params = (ulong)malloc(CONFIG_SYS_BOOTPARAMS_LEN);
+	if (!gd->bd->bi_boot_params) {
+		puts("WARNING: Cannot allocate space for boot parameters\n");
+		return -ENOMEM;
+	}
+	return 0;
+}
+#endif
+
 #ifdef CONFIG_SC3
 /* TODO: with new initcalls, move this into the driver */
 extern void sc3_read_eeprom(void);
@@ -486,7 +501,7 @@ static int initr_api(void)
 #endif
 
 /* enable exceptions */
-#ifdef CONFIG_ARM
+#if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
 static int initr_enable_interrupts(void)
 {
 	enable_interrupts();
@@ -775,6 +790,9 @@ init_fnc_t init_sequence_r[] = {
 	initr_dataflash,
 #endif
 	initr_env,
+#ifdef CONFIG_SYS_BOOTPARAMS_LEN
+	initr_malloc_bootparams,
+#endif
 	INIT_FUNC_WATCHDOG_RESET
 	initr_secondary_cpu,
 #ifdef CONFIG_SC3
@@ -810,10 +828,10 @@ init_fnc_t init_sequence_r[] = {
 	initr_kgdb,
 #endif
 	interrupt_init,
-#if defined(CONFIG_ARM)
+#if defined(CONFIG_ARM) || defined(CONFIG_AVR32)
 	initr_enable_interrupts,
 #endif
-#if defined(CONFIG_X86) || defined(CONFIG_MICROBLAZE)
+#if defined(CONFIG_X86) || defined(CONFIG_MICROBLAZE) || defined(CONFIG_AVR32)
 	timer_init,		/* initialize timer */
 #endif
 #if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
@@ -878,6 +896,10 @@ void board_init_r(gd_t *new_gd, ulong dest_addr)
 	int i;
 #endif
 
+#ifdef CONFIG_AVR32
+	mmu_init_r(dest_addr);
+#endif
+
 #if !defined(CONFIG_X86) && !defined(CONFIG_ARM) && !defined(CONFIG_ARM64)
 	gd = new_gd;
 #endif
diff --git a/common/cmd_bdinfo.c b/common/cmd_bdinfo.c
index e9eab232f9..aa81da227b 100644
--- a/common/cmd_bdinfo.c
+++ b/common/cmd_bdinfo.c
@@ -345,8 +345,8 @@ int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	bd_t *bd = gd->bd;
 
 	print_num("boot_params",	(ulong)bd->bi_boot_params);
-	print_num("memstart",		(ulong)bd->bi_memstart);
-	print_lnum("memsize",		(u64)bd->bi_memsize);
+	print_num("memstart",		(ulong)bd->bi_dram[0].start);
+	print_lnum("memsize",		(u64)bd->bi_dram[0].size);
 	print_num("flashstart",		(ulong)bd->bi_flashstart);
 	print_num("flashsize",		(ulong)bd->bi_flashsize);
 	print_num("flashoffset",	(ulong)bd->bi_flashoffset);
diff --git a/include/asm-generic/u-boot.h b/include/asm-generic/u-boot.h
index aef39d7884..a63a87a287 100644
--- a/include/asm-generic/u-boot.h
+++ b/include/asm-generic/u-boot.h
@@ -32,6 +32,10 @@ typedef struct bd_info {
 	unsigned long	bi_flashoffset; /* reserved area for startup monitor */
 	unsigned long	bi_sramstart;	/* start of SRAM memory */
 	unsigned long	bi_sramsize;	/* size	 of SRAM memory */
+#ifdef CONFIG_AVR32
+	unsigned char   bi_phy_id[4];   /* PHY address for ATAG_ETHERNET */
+	unsigned long   bi_board_number;/* ATAG_BOARDINFO */
+#endif
 #ifdef CONFIG_ARM
 	unsigned long	bi_arm_freq; /* arm frequency */
 	unsigned long	bi_dsp_freq; /* dsp core frequency */
diff --git a/include/common.h b/include/common.h
index 91294547f5..77c55c6f26 100644
--- a/include/common.h
+++ b/include/common.h
@@ -253,6 +253,24 @@ int update_flash_size(int flash_size);
 int arch_early_init_r(void);
 
 /**
+ * Reserve all necessary stacks
+ *
+ * This is used in generic board init sequence in common/board_f.c. Each
+ * architecture could provide this function to tailor the required stacks.
+ *
+ * On entry gd->start_addr_sp is pointing to the suggested top of the stack.
+ * The callee ensures gd->start_add_sp is 16-byte aligned, so architectures
+ * require only this can leave it untouched.
+ *
+ * On exit gd->start_addr_sp and gd->irq_sp should be set to the respective
+ * positions of the stack. The stack pointer(s) will be set to this later.
+ * gd->irq_sp is only required, if the architecture needs it.
+ *
+ * @return 0 if no error
+ */
+__weak int arch_reserve_stacks(void);
+
+/**
  * Show the DRAM size in a board-specific way
  *
  * This is used by boards to display DRAM information in their own way.
diff --git a/include/configs/atngw100.h b/include/configs/atngw100.h
index 9c81e3199f..540e86ae47 100644
--- a/include/configs/atngw100.h
+++ b/include/configs/atngw100.h
@@ -143,7 +143,6 @@
 #define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_INTRAM_BASE + CONFIG_SYS_INTRAM_SIZE)
 
 #define CONFIG_SYS_MALLOC_LEN			(256*1024)
-#define CONFIG_SYS_DMA_ALLOC_LEN		(16384)
 
 /* Allow 4MB for the kernel run-time image */
 #define CONFIG_SYS_LOAD_ADDR			(EBI_SDRAM_BASE + 0x00400000)
diff --git a/include/configs/atngw100mkii.h b/include/configs/atngw100mkii.h
index 7b4f9cf206..35eae76930 100644
--- a/include/configs/atngw100mkii.h
+++ b/include/configs/atngw100mkii.h
@@ -164,7 +164,6 @@
 #define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_INTRAM_BASE + CONFIG_SYS_INTRAM_SIZE)
 
 #define CONFIG_SYS_MALLOC_LEN		(256*1024)
-#define CONFIG_SYS_DMA_ALLOC_LEN	(16384)
 
 /* Allow 4MB for the kernel run-time image */
 #define CONFIG_SYS_LOAD_ADDR		(EBI_SDRAM_BASE + 0x00400000)
diff --git a/include/configs/atstk1002.h b/include/configs/atstk1002.h
index 8f3fd0bb00..a9c064a45d 100644
--- a/include/configs/atstk1002.h
+++ b/include/configs/atstk1002.h
@@ -104,6 +104,10 @@
 #define CONFIG_BOOTP_SUBNETMASK
 #define CONFIG_BOOTP_GATEWAY
 
+/* generic board */
+#define CONFIG_SYS_GENERIC_BOARD
+#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_BOARD_EARLY_INIT_R
 
 /*
  * Command line configuration.
@@ -158,7 +162,6 @@
 #define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_INTRAM_BASE + CONFIG_SYS_INTRAM_SIZE)
 
 #define CONFIG_SYS_MALLOC_LEN			(256*1024)
-#define CONFIG_SYS_DMA_ALLOC_LEN		(16384)
 
 /* Allow 4MB for the kernel run-time image */
 #define CONFIG_SYS_LOAD_ADDR			(EBI_SDRAM_BASE + 0x00400000)
diff --git a/include/configs/atstk1006.h b/include/configs/atstk1006.h
index bbe0aea861..25090a68fa 100644
--- a/include/configs/atstk1006.h
+++ b/include/configs/atstk1006.h
@@ -159,7 +159,6 @@
 #define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_INTRAM_BASE + CONFIG_SYS_INTRAM_SIZE)
 
 #define CONFIG_SYS_MALLOC_LEN			(256*1024)
-#define CONFIG_SYS_DMA_ALLOC_LEN		(16384)
 
 /* Allow 4MB for the kernel run-time image */
 #define CONFIG_SYS_LOAD_ADDR			(EBI_SDRAM_BASE + 0x00400000)
diff --git a/include/configs/favr-32-ezkit.h b/include/configs/favr-32-ezkit.h
index 338d3dc782..75bff4ce28 100644
--- a/include/configs/favr-32-ezkit.h
+++ b/include/configs/favr-32-ezkit.h
@@ -162,7 +162,6 @@
 #define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_INTRAM_BASE + CONFIG_SYS_INTRAM_SIZE)
 
 #define CONFIG_SYS_MALLOC_LEN			(256*1024)
-#define CONFIG_SYS_DMA_ALLOC_LEN		(16384)
 
 /* Allow 4MB for the kernel run-time image */
 #define CONFIG_SYS_LOAD_ADDR			(EBI_SDRAM_BASE + 0x00400000)
diff --git a/include/configs/grasshopper.h b/include/configs/grasshopper.h
index 73534addfc..54eb9777d7 100644
--- a/include/configs/grasshopper.h
+++ b/include/configs/grasshopper.h
@@ -62,6 +62,10 @@
 #define CONFIG_USART_BASE		ATMEL_BASE_USART1
 #define CONFIG_USART_ID			1
 
+#define CONFIG_SYS_GENERIC_BOARD
+#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_BOARD_EARLY_INIT_R
+
 /* User serviceable stuff */
 #define CONFIG_CMDLINE_TAG
 #define CONFIG_SETUP_MEMORY_TAGS
@@ -151,7 +155,6 @@
 					 CONFIG_SYS_INTRAM_SIZE)
 
 #define CONFIG_SYS_MALLOC_LEN		(256*1024)
-#define CONFIG_SYS_DMA_ALLOC_LEN	(16384)
 
 /* Allow 4MB for the kernel run-time image */
 #define CONFIG_SYS_LOAD_ADDR		(EBI_SDRAM_BASE + 0x00400000)
diff --git a/include/configs/hammerhead.h b/include/configs/hammerhead.h
index 4f0603abc1..0bc42f12e0 100644
--- a/include/configs/hammerhead.h
+++ b/include/configs/hammerhead.h
@@ -137,7 +137,6 @@
 
 #define CONFIG_SYS_MALLOC_LEN			(256*1024)
 
-#define CONFIG_SYS_DMA_ALLOC_LEN		(16384)
 
 /* Allow 4MB for the kernel run-time image */
 #define CONFIG_SYS_LOAD_ADDR			(CONFIG_SYS_SDRAM_BASE + 0x00400000)
diff --git a/include/configs/mimc200.h b/include/configs/mimc200.h
index fc7ecfaee4..2fd3addc1a 100644
--- a/include/configs/mimc200.h
+++ b/include/configs/mimc200.h
@@ -157,7 +157,6 @@
 #define CONFIG_SYS_INIT_SP_ADDR		(CONFIG_SYS_INTRAM_BASE + CONFIG_SYS_INTRAM_SIZE)
 
 #define CONFIG_SYS_MALLOC_LEN			(1024*1024)
-#define CONFIG_SYS_DMA_ALLOC_LEN		(16384)
 
 /* Allow 4MB for the kernel run-time image */
 #define CONFIG_SYS_LOAD_ADDR			(EBI_SDRAM_BASE + 0x00400000)