ARM: vexpress: convert to multi-platform

Convert vexpress to multi-platform. This always enables vexpress DT and
makes it the default v7 platform.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>

arch/arm/Kconfig

@@ -319,24 +319,6 @@ config ARCH_VERSATILE
 	help
 	  This enables support for ARM Ltd Versatile board.
 
-config ARCH_VEXPRESS
-	bool "ARM Ltd. Versatile Express family"
-	select ARCH_WANT_OPTIONAL_GPIOLIB
-	select ARM_AMBA
-	select ARM_TIMER_SP804
-	select CLKDEV_LOOKUP
-	select COMMON_CLK
-	select GENERIC_CLOCKEVENTS
-	select HAVE_CLK
-	select HAVE_PATA_PLATFORM
-	select ICST
-	select NO_IOPORT
-	select PLAT_VERSATILE
-	select PLAT_VERSATILE_CLCD
-	select REGULATOR_FIXED_VOLTAGE if REGULATOR
-	help
-	  This enables support for the ARM Ltd Versatile Express boards.
-
 config ARCH_AT91
 	bool "Atmel AT91"
 	select ARCH_REQUIRE_GPIOLIB
@@ -1016,6 +998,7 @@ config ARCH_MULTI_V6
 config ARCH_MULTI_V7
 	bool "ARMv7 based platforms (Cortex-A, PJ4, Krait)"
 	select CPU_V7
+	select ARCH_VEXPRESS
 	default y
 	select ARCH_MULTI_V6_V7
 

arch/arm/mach-vexpress/Kconfig

-menu "Versatile Express platform type"
-	depends on ARCH_VEXPRESS
-
-config ARCH_VEXPRESS_CORTEX_A5_A9_ERRATA
-	bool "Enable A5 and A9 only errata work-arounds"
-	default y
-	select ARM_ERRATA_720789
-	select ARM_ERRATA_751472
-	select PL310_ERRATA_753970 if CACHE_PL310
-	help
-	  Provides common dependencies for Versatile Express platforms
-	  based on Cortex-A5 and Cortex-A9 processors. In order to
-	  build a working kernel, you must also enable relevant core
-	  tile support or Flattened Device Tree based support options.
-
-config ARCH_VEXPRESS_CA9X4
-	bool "Versatile Express Cortex-A9x4 tile"
-	select ARM_GIC
-	select CPU_V7
-	select HAVE_SMP
-	select MIGHT_HAVE_CACHE_L2X0
-
-config ARCH_VEXPRESS_DT
-	bool "Device Tree support for Versatile Express platforms"
+config ARCH_VEXPRESS
+	bool "ARM Ltd. Versatile Express family" if ARCH_MULTI_V7
+	select ARCH_WANT_OPTIONAL_GPIOLIB
+	select ARM_AMBA
 	select ARM_GIC
-	select ARM_PATCH_PHYS_VIRT
-	select AUTO_ZRELADDR
+	select ARM_TIMER_SP804
+	select CLKDEV_LOOKUP
+	select COMMON_CLK
 	select CPU_V7
+	select GENERIC_CLOCKEVENTS
+	select HAVE_CLK
+	select HAVE_PATA_PLATFORM
 	select HAVE_SMP
+	select ICST
 	select MIGHT_HAVE_CACHE_L2X0
-	select USE_OF
+	select NO_IOPORT
+	select PLAT_VERSATILE
+	select PLAT_VERSATILE_CLCD
+	select REGULATOR_FIXED_VOLTAGE if REGULATOR
 	help
-	  New Versatile Express platforms require Flattened Device Tree to
-	  be passed to the kernel.
-
 	  This option enables support for systems using Cortex processor based
 	  ARM core and logic (FPGA) tiles on the Versatile Express motherboard,
 	  for example:
@@ -48,7 +33,22 @@ config ARCH_VEXPRESS_DT
 	  platforms. The traditional (ATAGs) boot method is not usable on
 	  these boards with this option.
 
-	  If your bootloader supports Flattened Device Tree based booting,
-	  say Y here.
+menu "Versatile Express platform type"
+	depends on ARCH_VEXPRESS
+
+config ARCH_VEXPRESS_CORTEX_A5_A9_ERRATA
+	bool "Enable A5 and A9 only errata work-arounds"
+	default y
+	select ARM_ERRATA_720789
+	select ARM_ERRATA_751472
+	select PL310_ERRATA_753970 if CACHE_PL310
+	help
+	  Provides common dependencies for Versatile Express platforms
+	  based on Cortex-A5 and Cortex-A9 processors. In order to
+	  build a working kernel, you must also enable relevant core
+	  tile support or Flattened Device Tree based support options.
+
+config ARCH_VEXPRESS_CA9X4
+	bool "Versatile Express Cortex-A9x4 tile"
 
 endmenu

arch/arm/mach-vexpress/Makefile

 #
 # Makefile for the linux kernel.
 #
+ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include \
+	-I$(srctree)/arch/arm/plat-versatile/include
 
 obj-y					:= v2m.o
 obj-$(CONFIG_ARCH_VEXPRESS_CA9X4)	+= ct-ca9x4.o

arch/arm/mach-vexpress/Makefile.boot

-# Those numbers are used only by the non-DT V2P-CA9 platform
-# The DT-enabled ones require CONFIG_AUTO_ZRELADDR=y
-   zreladdr-y	+= 0x60008000
-params_phys-y	:= 0x60000100
-initrd_phys-y	:= 0x60800000

arch/arm/mach-vexpress/include/mach/timex.h

-/*
- *  arch/arm/mach-vexpress/include/mach/timex.h
- *
- *  RealView architecture timex specifications
- *
- *  Copyright (C) 2003 ARM Limited
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#define CLOCK_TICK_RATE		(50000000 / 16)

arch/arm/mach-vexpress/include/mach/uncompress.h

-/*
- *  arch/arm/mach-vexpress/include/mach/uncompress.h
- *
- *  Copyright (C) 2003 ARM Limited
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#define AMBA_UART_DR(base)	(*(volatile unsigned char *)((base) + 0x00))
-#define AMBA_UART_LCRH(base)	(*(volatile unsigned char *)((base) + 0x2c))
-#define AMBA_UART_CR(base)	(*(volatile unsigned char *)((base) + 0x30))
-#define AMBA_UART_FR(base)	(*(volatile unsigned char *)((base) + 0x18))
-
-#define UART_BASE	0x10009000
-#define UART_BASE_RS1	0x1c090000
-
-static unsigned long get_uart_base(void)
-{
-#if defined(CONFIG_DEBUG_VEXPRESS_UART0_DETECT)
-	unsigned long mpcore_periph;
-
-	/*
-	 * Make an educated guess regarding the memory map:
-	 * - the original A9 core tile, which has MPCore peripherals
-	 *   located at 0x1e000000, should use UART at 0x10009000
-	 * - all other (RS1 complaint) tiles use UART mapped
-	 *   at 0x1c090000
-	 */
-	asm("mrc p15, 4, %0, c15, c0, 0" : "=r" (mpcore_periph));
-
-	if (mpcore_periph == 0x1e000000)
-		return UART_BASE;
-	else
-		return UART_BASE_RS1;
-#elif defined(CONFIG_DEBUG_VEXPRESS_UART0_CA9)
-	return UART_BASE;
-#elif defined(CONFIG_DEBUG_VEXPRESS_UART0_RS1)
-	return UART_BASE_RS1;
-#else
-	return 0;
-#endif
-}
-
-/*
- * This does not append a newline
- */
-static inline void putc(int c)
-{
-	unsigned long base = get_uart_base();
-
-	if (!base)
-		return;
-
-	while (AMBA_UART_FR(base) & (1 << 5))
-		barrier();
-
-	AMBA_UART_DR(base) = c;
-}
-
-static inline void flush(void)
-{
-	unsigned long base = get_uart_base();
-
-	if (!base)
-		return;
-
-	while (AMBA_UART_FR(base) & (1 << 3))
-		barrier();
-}
-
-/*
- * nothing to do
- */
-#define arch_decomp_setup()
-#define arch_decomp_wdog()

arch/arm/mach-vexpress/v2m.c

@@ -539,8 +539,6 @@ MACHINE_START(VEXPRESS, "ARM-Versatile Express")
 	.restart	= v2m_restart,
 MACHINE_END
 
-#if defined(CONFIG_ARCH_VEXPRESS_DT)
-
 static struct map_desc v2m_rs1_io_desc __initdata = {
 	.virtual	= V2M_PERIPH,
 	.pfn		= __phys_to_pfn(0x1c000000),
@@ -671,5 +669,3 @@ DT_MACHINE_START(VEXPRESS_DT, "ARM-Versatile Express")
 	.handle_irq	= gic_handle_irq,
 	.restart	= v2m_restart,
 MACHINE_END
-
-#endif

arch/arm/plat-versatile/Makefile

+ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include
+
 obj-$(CONFIG_PLAT_VERSATILE_CLOCK) += clock.o
 obj-$(CONFIG_PLAT_VERSATILE_CLCD) += clcd.o
 obj-$(CONFIG_PLAT_VERSATILE_FPGA_IRQ) += fpga-irq.o