u-boot/arm: Initial steps to drop target board requirements

build/jam/ArchitectureRules

@@ -233,48 +233,8 @@ rule KernelArchitectureSetup architecture
 			HAIKU_BOOT_ARCHIVE_IMAGE_OFFSET = 192 ; # in kB - unused yet
 
 		case arm :
-			switch $(HAIKU_BOOT_BOARD) {
-				case beagleboard :
-				{
-					HAIKU_BOOT_PLATFORM ?= u-boot ;
-					HAIKU_BOOT_FLOPPY_IMAGE_SIZE = 1440 ;
-				}
-				case beaglebone :
-				{
-					HAIKU_BOOT_PLATFORM ?= u-boot ;
-					HAIKU_BOOT_FLOPPY_IMAGE_SIZE = 1440 ;
-				}
-				case neo_freerunner :
-				{
-					HAIKU_BOOT_PLATFORM ?= u-boot ;
-					HAIKU_BOOT_FLOPPY_IMAGE_SIZE = 1440 ;
-				}
-				case overo :
-				{
-					HAIKU_BOOT_PLATFORM ?= u-boot ;
-					HAIKU_BOOT_FLOPPY_IMAGE_SIZE = 1440 ;
-				}
-				case rpi2 :
-				{
-					HAIKU_BOOT_PLATFORM ?= u-boot ;
-					HAIKU_BOOT_FLOPPY_IMAGE_SIZE = 1440 ;
-				}
-				case cubieboard4 :
-				{
-					HAIKU_BOOT_PLATFORM ?= u-boot ;
-					HAIKU_BOOT_FLOPPY_IMAGE_SIZE = 1440 ;
-				}
-				case verdex :
-				{
-					HAIKU_BOOT_PLATFORM ?= u-boot ;
-					HAIKU_BOOT_FLOPPY_IMAGE_SIZE = 1440 ;
-				}
-				case * :
-				{
-					Exit "Set HAIKU_BOOT_BOARD for your target ARM device!" ;
-				}
-			}
-
+			HAIKU_BOOT_PLATFORM ?= u-boot ;
+			HAIKU_BOOT_FLOPPY_IMAGE_SIZE = 1440 ;
 			# offset in floppy image (>= sizeof(haiku_loader))
 			HAIKU_BOOT_ARCHIVE_IMAGE_OFFSET = 192 ; # in kB - unused yet
 
@@ -376,6 +336,13 @@ rule KernelArchitectureSetup architecture
 	}
 
 	switch $(cpu) {
+		case arm :
+			# Workaround for ld using 32k for alignment despite forcing it in the config...
+			# should definitely not be needed!
+			HAIKU_KERNEL_LINKFLAGS +=
+			    -Wl,-z -Wl,max-page-size=0x1000
+			    -Wl,-z -Wl,common-page-size=0x1000 ;
+
 		case ppc :
 			# Build a position independent PPC kernel. We need to be able to
 			# relocate the kernel, since the virtual address space layout at

src/system/boot/arch/arm/Jamfile

@@ -3,7 +3,6 @@ SubDir HAIKU_TOP src system boot arch arm ;
 UsePrivateHeaders [ FDirName kernel platform $(TARGET_BOOT_PLATFORM) ] ;
 
 #XXX: should not be needed here
-UsePrivateHeaders [ FDirName kernel arch $(TARGET_KERNEL_ARCH) board $(TARGET_BOOT_BOARD) ] ;
 UseLibraryHeaders [ FDirName libfdt ] ;
 
 {

src/system/boot/arch/arm/arch_mmu.cpp

@@ -17,8 +17,6 @@
 #include <arm_mmu.h>
 #include <kernel.h>
 
-#include <board_config.h>
-
 #include <OS.h>
 
 #include <string.h>
@@ -88,13 +86,16 @@ struct memblock {
 };
 
 
+#warning TODO: Plot pref. base from fdt!
 static struct memblock LOADER_MEMORYMAP[] = {
+/*
 	{
 		"devices",
 		DEVICE_BASE,
 		DEVICE_BASE + DEVICE_SIZE - 1,
 		ARM_MMU_L2_FLAG_B,
 	},
+*/
 	{
 		"RAM_kernel", // 8MB space for kernel, drivers etc
 		KERNEL_LOAD_BASE,
@@ -112,7 +113,6 @@ static struct memblock LOADER_MEMORYMAP[] = {
 #endif
 };
 
-
 //static const uint32 kDefaultPageTableFlags = MMU_FLAG_READWRITE;
 	// not cached not buffered, R/W
 

src/system/boot/platform/u-boot/arch/arm/Jamfile

@@ -7,7 +7,6 @@ UsePrivateSystemHeaders ;
 UsePrivateHeaders kernel [ FDirName kernel platform u-boot ] ;
 UsePrivateHeaders kernel [ FDirName kernel arch $(TARGET_KERNEL_ARCH) ] 
 	[ FDirName kernel boot platform $(HAIKU_BOOT_PLATFORM) ] ;
-UsePrivateHeaders [ FDirName kernel arch $(TARGET_KERNEL_ARCH) board $(TARGET_BOOT_BOARD) ] ;
 
 SubDirC++Flags -fno-rtti ;
 

src/system/boot/platform/u-boot/arch/arm/arch_mailbox.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2015 Haiku, Inc. All rights reserved.
+ * Copyright 2012-2016 Haiku, Inc. All rights reserved.
  * Distributed under the terms of the MIT License.
  *
  * Authors:
@@ -9,8 +9,6 @@
 
 #include "arch_mailbox.h"
 
-#include <board_config.h>
-
 #include "fdt_support.h"
 
 ArchMailbox *gMailbox = NULL;
@@ -19,12 +17,11 @@ extern void* gFDT;
 extern "C" status_t
 arch_mailbox_init()
 {
-	#if defined(BOARD_CPU_BCM2835) || defined(BOARD_CPU_BCM2836)
 	extern ArchMailbox *arch_get_mailbox_arm_bcm2835(addr_t base);
 	phys_addr_t mboxBase = fdt_get_device_reg_byname(gFDT, "/axi/mbox");
-	if (mboxBase) {
-		gMailbox = arch_get_mailbox_arm_bcm2835(mboxBase);
+	if (!mboxBase) {
+		return B_ERROR;
 	}
-	#endif
+	gMailbox = arch_get_mailbox_arm_bcm2835(mboxBase);
 	return B_OK;
 }

src/system/boot/platform/u-boot/arch/ppc/Jamfile

@@ -4,6 +4,7 @@ SubDirHdrs $(HAIKU_TOP) src system boot platform $(TARGET_BOOT_PLATFORM) ;
 UsePrivateSystemHeaders ;
 UsePrivateHeaders kernel [ FDirName kernel arch $(TARGET_KERNEL_ARCH) ] 
 	[ FDirName kernel boot platform $(HAIKU_BOOT_PLATFORM) ] ;
+
 UsePrivateHeaders [ FDirName kernel arch $(TARGET_KERNEL_ARCH) board $(TARGET_BOOT_BOARD) ] ;
 
 UseLibraryHeaders [ FDirName libfdt ] ;

src/system/boot/platform/u-boot/serial.cpp

@@ -19,7 +19,6 @@
 #include <arch/arm/arch_uart_pl011.h>
 #endif
 
-#include <board_config.h>
 #include <boot/platform.h>
 #include <arch/cpu.h>
 #include <boot/stage2.h>
@@ -124,17 +123,8 @@ serial_init(const void *fdt)
 	// first try with hints from the FDT
 	gUART = debug_uart_from_fdt(fdt);
 
-	// fallback to known board UARTs
-	#if defined(BOARD_UART_DEBUG) && defined(BOARD_UART_CLOCK)
-	if (gUART == NULL) {
-		#ifdef BOARD_UART_PL011
-		gUART = arch_get_uart_pl011(BOARD_UART_DEBUG, BOARD_UART_CLOCK);
-		#else
-		gUART = arch_get_uart_8250(BOARD_UART_DEBUG, BOARD_UART_CLOCK);
-		#endif
-	}
-	#endif
-
+	// Do we can some kind of direct fallback here
+	// (aka, guess arch_get_uart_pl011 or arch_get_uart_8250?)
 	if (gUART == NULL)
 		return;
 

src/system/boot/platform/u-boot/start.cpp

@@ -20,7 +20,6 @@
 #include <arch/cpu.h>
 #include <platform_arch.h>
 #include <platform/openfirmware/openfirmware.h>
-#include <board_config.h>
 
 #include <string.h>
 

src/system/boot/platform/u-boot/video.cpp

@@ -14,7 +14,6 @@
 #include <boot/platform/generic/video.h>
 #include <util/list.h>
 #include <drivers/driver_settings.h>
-#include <board_config.h>
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -104,6 +103,8 @@ platform_switch_to_text_mode(void)
 extern "C" status_t
 platform_init_video(void)
 {
+
+#warning TODO: Fix u-boot arm framebuffer location from fdt!
 #ifdef __ARM__
 	#if defined(BOARD_CPU_ARM920T)
 		extern ArchFramebuffer *arch_get_fb_arm_920(addr_t base);

src/system/kernel/arch/arm/arch_uart_8250.cpp

@@ -9,7 +9,6 @@
 
 #include <arch/arm/reg.h>
 #include <arch/generic/debug_uart_8250.h>
-#include <board_config.h>
 #include <debug.h>
 #include <new>
 
@@ -42,7 +41,7 @@ void
 ArchUART8250::InitEarly()
 {
 	// Perform special hardware UART configuration
-
+#warning TODO: Detect OMAP3 from fdt!
 #if BOARD_CPU_OMAP3
 	/* UART1 */
 	RMWREG32(CM_FCLKEN1_CORE, 13, 1, 1);