diff options
Diffstat (limited to 'arch/arm/mach-vexpress')
| -rw-r--r-- | arch/arm/mach-vexpress/Kconfig | 64 | ||||
| -rw-r--r-- | arch/arm/mach-vexpress/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/mach-vexpress/Makefile.boot | 10 | ||||
| -rw-r--r-- | arch/arm/mach-vexpress/core.h | 4 | ||||
| -rw-r--r-- | arch/arm/mach-vexpress/ct-ca9x4.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-vexpress/hotplug.c | 18 | ||||
| -rw-r--r-- | arch/arm/mach-vexpress/include/mach/debug-macro.S | 84 | ||||
| -rw-r--r-- | arch/arm/mach-vexpress/include/mach/gpio.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-vexpress/include/mach/irqs.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-vexpress/include/mach/timex.h | 23 | ||||
| -rw-r--r-- | arch/arm/mach-vexpress/include/mach/uncompress.h | 86 | ||||
| -rw-r--r-- | arch/arm/mach-vexpress/platsmp.c | 18 | ||||
| -rw-r--r-- | arch/arm/mach-vexpress/v2m.c | 8 |
13 files changed, 60 insertions, 261 deletions
diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig index fc3730f01650..c95296066203 100644 --- a/arch/arm/mach-vexpress/Kconfig +++ b/arch/arm/mach-vexpress/Kconfig @@ -1,38 +1,23 @@ -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 diff --git a/arch/arm/mach-vexpress/Makefile b/arch/arm/mach-vexpress/Makefile index 90551b9780ab..42703e8b4d3b 100644 --- a/arch/arm/mach-vexpress/Makefile +++ b/arch/arm/mach-vexpress/Makefile @@ -1,6 +1,8 @@ # # 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-$(CONFIG_ARCH_VEXPRESS_CA9X4) += ct-ca9x4.o diff --git a/arch/arm/mach-vexpress/Makefile.boot b/arch/arm/mach-vexpress/Makefile.boot deleted file mode 100644 index 318d308dfb93..000000000000 --- a/arch/arm/mach-vexpress/Makefile.boot +++ /dev/null @@ -1,10 +0,0 @@ -# Those numbers are used only by the non-DT V2P-CA9 platform -# The DT-enabled ones require CONFIG_AUTO_ZRELADDR=y - zreladdr-y += 0x60008000 -params_phys-y := 0x60000100 -initrd_phys-y := 0x60800000 - -dtb-$(CONFIG_ARCH_VEXPRESS_DT) += vexpress-v2p-ca5s.dtb \ - vexpress-v2p-ca9.dtb \ - vexpress-v2p-ca15-tc1.dtb \ - vexpress-v2p-ca15_a7.dtb diff --git a/arch/arm/mach-vexpress/core.h b/arch/arm/mach-vexpress/core.h index a3a4980770bd..f134cd4a85f1 100644 --- a/arch/arm/mach-vexpress/core.h +++ b/arch/arm/mach-vexpress/core.h @@ -5,3 +5,7 @@ #define V2T_PERIPH 0xf8200000 void vexpress_dt_smp_map_io(void); + +extern struct smp_operations vexpress_smp_ops; + +extern void vexpress_cpu_die(unsigned int cpu); diff --git a/arch/arm/mach-vexpress/ct-ca9x4.c b/arch/arm/mach-vexpress/ct-ca9x4.c index e4073a60a864..4f471fa3e3c5 100644 --- a/arch/arm/mach-vexpress/ct-ca9x4.c +++ b/arch/arm/mach-vexpress/ct-ca9x4.c @@ -26,6 +26,7 @@ #include "core.h" #include <mach/motherboard.h> +#include <mach/irqs.h> #include <plat/clcd.h> diff --git a/arch/arm/mach-vexpress/hotplug.c b/arch/arm/mach-vexpress/hotplug.c index c504a72b94d6..a141b98d84fe 100644 --- a/arch/arm/mach-vexpress/hotplug.c +++ b/arch/arm/mach-vexpress/hotplug.c @@ -16,8 +16,6 @@ #include <asm/smp_plat.h> #include <asm/cp15.h> -extern volatile int pen_release; - static inline void cpu_enter_lowpower(void) { unsigned int v; @@ -84,17 +82,12 @@ static inline void platform_do_lowpower(unsigned int cpu, int *spurious) } } -int platform_cpu_kill(unsigned int cpu) -{ - return 1; -} - /* * platform-specific code to shutdown a CPU * * Called with IRQs disabled */ -void platform_cpu_die(unsigned int cpu) +void __ref vexpress_cpu_die(unsigned int cpu) { int spurious = 0; @@ -113,12 +106,3 @@ void platform_cpu_die(unsigned int cpu) if (spurious) pr_warn("CPU%u: %u spurious wakeup calls\n", cpu, spurious); } - -int platform_cpu_disable(unsigned int cpu) -{ - /* - * we don't allow CPU 0 to be shutdown (it is still too special - * e.g. clock tick interrupts) - */ - return cpu == 0 ? -EPERM : 0; -} diff --git a/arch/arm/mach-vexpress/include/mach/debug-macro.S b/arch/arm/mach-vexpress/include/mach/debug-macro.S deleted file mode 100644 index 9f509f55d078..000000000000 --- a/arch/arm/mach-vexpress/include/mach/debug-macro.S +++ /dev/null @@ -1,84 +0,0 @@ -/* arch/arm/mach-realview/include/mach/debug-macro.S - * - * Debugging macro include header - * - * Copyright (C) 1994-1999 Russell King - * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#define DEBUG_LL_PHYS_BASE 0x10000000 -#define DEBUG_LL_UART_OFFSET 0x00009000 - -#define DEBUG_LL_PHYS_BASE_RS1 0x1c000000 -#define DEBUG_LL_UART_OFFSET_RS1 0x00090000 - -#define DEBUG_LL_VIRT_BASE 0xf8000000 - -#if defined(CONFIG_DEBUG_VEXPRESS_UART0_DETECT) - - .macro addruart,rp,rv,tmp - - @ 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 - mrc p15, 4, \tmp, c15, c0, 0 - cmp \tmp, #0x1e000000 - - @ Original memory map - moveq \rp, #DEBUG_LL_UART_OFFSET - orreq \rv, \rp, #DEBUG_LL_VIRT_BASE - orreq \rp, \rp, #DEBUG_LL_PHYS_BASE - - @ RS1 memory map - movne \rp, #DEBUG_LL_UART_OFFSET_RS1 - orrne \rv, \rp, #DEBUG_LL_VIRT_BASE - orrne \rp, \rp, #DEBUG_LL_PHYS_BASE_RS1 - - .endm - -#include <asm/hardware/debug-pl01x.S> - -#elif defined(CONFIG_DEBUG_VEXPRESS_UART0_CA9) - - .macro addruart,rp,rv,tmp - mov \rp, #DEBUG_LL_UART_OFFSET - orr \rv, \rp, #DEBUG_LL_VIRT_BASE - orr \rp, \rp, #DEBUG_LL_PHYS_BASE - .endm - -#include <asm/hardware/debug-pl01x.S> - -#elif defined(CONFIG_DEBUG_VEXPRESS_UART0_RS1) - - .macro addruart,rp,rv,tmp - mov \rp, #DEBUG_LL_UART_OFFSET_RS1 - orr \rv, \rp, #DEBUG_LL_VIRT_BASE - orr \rp, \rp, #DEBUG_LL_PHYS_BASE_RS1 - .endm - -#include <asm/hardware/debug-pl01x.S> - -#else /* CONFIG_DEBUG_LL_UART_NONE */ - - .macro addruart, rp, rv, tmp - /* Safe dummy values */ - mov \rp, #0 - mov \rv, #DEBUG_LL_VIRT_BASE - .endm - - .macro senduart,rd,rx - .endm - - .macro waituart,rd,rx - .endm - - .macro busyuart,rd,rx - .endm - -#endif diff --git a/arch/arm/mach-vexpress/include/mach/gpio.h b/arch/arm/mach-vexpress/include/mach/gpio.h deleted file mode 100644 index 40a8c178f10d..000000000000 --- a/arch/arm/mach-vexpress/include/mach/gpio.h +++ /dev/null @@ -1 +0,0 @@ -/* empty */ diff --git a/arch/arm/mach-vexpress/include/mach/irqs.h b/arch/arm/mach-vexpress/include/mach/irqs.h index 4b10ee7657a6..f8f7f782eb55 100644 --- a/arch/arm/mach-vexpress/include/mach/irqs.h +++ b/arch/arm/mach-vexpress/include/mach/irqs.h @@ -1,4 +1,6 @@ #define IRQ_LOCALTIMER 29 #define IRQ_LOCALWDOG 30 +#ifndef CONFIG_SPARSE_IRQ #define NR_IRQS 256 +#endif diff --git a/arch/arm/mach-vexpress/include/mach/timex.h b/arch/arm/mach-vexpress/include/mach/timex.h deleted file mode 100644 index 00029bacd43c..000000000000 --- a/arch/arm/mach-vexpress/include/mach/timex.h +++ /dev/null @@ -1,23 +0,0 @@ -/* - * 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) diff --git a/arch/arm/mach-vexpress/include/mach/uncompress.h b/arch/arm/mach-vexpress/include/mach/uncompress.h deleted file mode 100644 index 1e472eb0bbdc..000000000000 --- a/arch/arm/mach-vexpress/include/mach/uncompress.h +++ /dev/null @@ -1,86 +0,0 @@ -/* - * 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() diff --git a/arch/arm/mach-vexpress/platsmp.c b/arch/arm/mach-vexpress/platsmp.c index 14ba1128ae8d..7db27c8c05cc 100644 --- a/arch/arm/mach-vexpress/platsmp.c +++ b/arch/arm/mach-vexpress/platsmp.c @@ -20,9 +20,9 @@ #include <mach/motherboard.h> -#include "core.h" +#include <plat/platsmp.h> -extern void versatile_secondary_startup(void); +#include "core.h" #if defined(CONFIG_OF) @@ -167,7 +167,7 @@ void __init vexpress_dt_smp_prepare_cpus(unsigned int max_cpus) * Initialise the CPU possible map early - this describes the CPUs * which may be present or become present in the system. */ -void __init smp_init_cpus(void) +static void __init vexpress_smp_init_cpus(void) { if (ct_desc) ct_desc->init_cpu_map(); @@ -176,7 +176,7 @@ void __init smp_init_cpus(void) } -void __init platform_smp_prepare_cpus(unsigned int max_cpus) +static void __init vexpress_smp_prepare_cpus(unsigned int max_cpus) { /* * Initialise the present map, which describes the set of CPUs @@ -195,3 +195,13 @@ void __init platform_smp_prepare_cpus(unsigned int max_cpus) */ v2m_flags_set(virt_to_phys(versatile_secondary_startup)); } + +struct smp_operations __initdata vexpress_smp_ops = { + .smp_init_cpus = vexpress_smp_init_cpus, + .smp_prepare_cpus = vexpress_smp_prepare_cpus, + .smp_secondary_init = versatile_secondary_init, + .smp_boot_secondary = versatile_boot_secondary, +#ifdef CONFIG_HOTPLUG_CPU + .cpu_die = vexpress_cpu_die, +#endif +}; diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c index 37608f22ee31..5f6b7d543e55 100644 --- a/arch/arm/mach-vexpress/v2m.c +++ b/arch/arm/mach-vexpress/v2m.c @@ -5,6 +5,7 @@ #include <linux/amba/bus.h> #include <linux/amba/mmci.h> #include <linux/io.h> +#include <linux/smp.h> #include <linux/init.h> #include <linux/of_address.h> #include <linux/of_fdt.h> @@ -38,6 +39,7 @@ #include <mach/motherboard.h> #include <plat/sched_clock.h> +#include <plat/platsmp.h> #include "core.h" @@ -530,6 +532,7 @@ static void __init v2m_init(void) MACHINE_START(VEXPRESS, "ARM-Versatile Express") .atag_offset = 0x100, + .smp = smp_ops(vexpress_smp_ops), .map_io = v2m_map_io, .init_early = v2m_init_early, .init_irq = v2m_init_irq, @@ -539,8 +542,6 @@ 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), @@ -663,6 +664,7 @@ const static char *v2m_dt_match[] __initconst = { DT_MACHINE_START(VEXPRESS_DT, "ARM-Versatile Express") .dt_compat = v2m_dt_match, + .smp = smp_ops(vexpress_smp_ops), .map_io = v2m_dt_map_io, .init_early = v2m_dt_init_early, .init_irq = v2m_dt_init_irq, @@ -671,5 +673,3 @@ DT_MACHINE_START(VEXPRESS_DT, "ARM-Versatile Express") .handle_irq = gic_handle_irq, .restart = v2m_restart, MACHINE_END - -#endif |