提交 61727630 编写于 作者: R Rob Herring

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: NRob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
上级 387798b3
......@@ -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
......
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
#
# 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
......
# 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
*
* 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
*
* 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()
......@@ -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
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
......
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