diff options
Diffstat (limited to 'arch/arm/mach-highbank')
| -rw-r--r-- | arch/arm/mach-highbank/Kconfig | 15 | ||||
| -rw-r--r-- | arch/arm/mach-highbank/Makefile.boot | 1 | ||||
| -rw-r--r-- | arch/arm/mach-highbank/core.h | 9 | ||||
| -rw-r--r-- | arch/arm/mach-highbank/highbank.c | 54 | ||||
| -rw-r--r-- | arch/arm/mach-highbank/hotplug.c | 16 | ||||
| -rw-r--r-- | arch/arm/mach-highbank/include/mach/debug-macro.S | 19 | ||||
| -rw-r--r-- | arch/arm/mach-highbank/include/mach/gpio.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-highbank/include/mach/timex.h | 6 | ||||
| -rw-r--r-- | arch/arm/mach-highbank/include/mach/uncompress.h | 9 | ||||
| -rw-r--r-- | arch/arm/mach-highbank/platsmp.c | 18 | ||||
| -rw-r--r-- | arch/arm/mach-highbank/pm.c | 4 |
11 files changed, 94 insertions, 58 deletions
diff --git a/arch/arm/mach-highbank/Kconfig b/arch/arm/mach-highbank/Kconfig new file mode 100644 index 00000000000..0e1d0a42a3e --- /dev/null +++ b/arch/arm/mach-highbank/Kconfig @@ -0,0 +1,15 @@ +config ARCH_HIGHBANK + bool "Calxeda ECX-1000 (Highbank)" if ARCH_MULTI_V7 + select ARCH_WANT_OPTIONAL_GPIOLIB + select ARM_AMBA + select ARM_GIC + select ARM_TIMER_SP804 + select CACHE_L2X0 + select CLKDEV_LOOKUP + select COMMON_CLK + select CPU_V7 + select GENERIC_CLOCKEVENTS + select HAVE_ARM_SCU + select HAVE_SMP + select SPARSE_IRQ + select USE_OF diff --git a/arch/arm/mach-highbank/Makefile.boot b/arch/arm/mach-highbank/Makefile.boot deleted file mode 100644 index dae9661a768..00000000000 --- a/arch/arm/mach-highbank/Makefile.boot +++ /dev/null @@ -1 +0,0 @@ -zreladdr-y := 0x00008000 diff --git a/arch/arm/mach-highbank/core.h b/arch/arm/mach-highbank/core.h index 141ed517182..286ec82a4f6 100644 --- a/arch/arm/mach-highbank/core.h +++ b/arch/arm/mach-highbank/core.h @@ -8,4 +8,13 @@ extern void highbank_lluart_map_io(void); static inline void highbank_lluart_map_io(void) {} #endif +#ifdef CONFIG_PM_SLEEP +extern void highbank_pm_init(void); +#else +static inline void highbank_pm_init(void) {} +#endif + extern void highbank_smc1(int fn, int arg); +extern void highbank_cpu_die(unsigned int cpu); + +extern struct smp_operations highbank_smp_ops; diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c index d75b0a78d88..40e36a50304 100644 --- a/arch/arm/mach-highbank/highbank.c +++ b/arch/arm/mach-highbank/highbank.c @@ -15,6 +15,7 @@ */ #include <linux/clk.h> #include <linux/clkdev.h> +#include <linux/dma-mapping.h> #include <linux/io.h> #include <linux/irq.h> #include <linux/irqdomain.h> @@ -23,6 +24,7 @@ #include <linux/of_platform.h> #include <linux/of_address.h> #include <linux/smp.h> +#include <linux/amba/bus.h> #include <asm/cacheflush.h> #include <asm/smp_plat.h> @@ -149,9 +151,60 @@ static void highbank_power_off(void) cpu_do_idle(); } +static int highbank_platform_notifier(struct notifier_block *nb, + unsigned long event, void *__dev) +{ + struct resource *res; + int reg = -1; + struct device *dev = __dev; + + if (event != BUS_NOTIFY_ADD_DEVICE) + return NOTIFY_DONE; + + if (of_device_is_compatible(dev->of_node, "calxeda,hb-ahci")) + reg = 0xc; + else if (of_device_is_compatible(dev->of_node, "calxeda,hb-sdhci")) + reg = 0x18; + else if (of_device_is_compatible(dev->of_node, "arm,pl330")) + reg = 0x20; + else if (of_device_is_compatible(dev->of_node, "calxeda,hb-xgmac")) { + res = platform_get_resource(to_platform_device(dev), + IORESOURCE_MEM, 0); + if (res) { + if (res->start == 0xfff50000) + reg = 0; + else if (res->start == 0xfff51000) + reg = 4; + } + } + + if (reg < 0) + return NOTIFY_DONE; + + if (of_property_read_bool(dev->of_node, "dma-coherent")) { + writel(0xff31, sregs_base + reg); + set_dma_ops(dev, &arm_coherent_dma_ops); + } else + writel(0, sregs_base + reg); + + return NOTIFY_OK; +} + +static struct notifier_block highbank_amba_nb = { + .notifier_call = highbank_platform_notifier, +}; + +static struct notifier_block highbank_platform_nb = { + .notifier_call = highbank_platform_notifier, +}; + static void __init highbank_init(void) { pm_power_off = highbank_power_off; + highbank_pm_init(); + + bus_register_notifier(&platform_bus_type, &highbank_platform_nb); + bus_register_notifier(&amba_bustype, &highbank_amba_nb); of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); } @@ -162,6 +215,7 @@ static const char *highbank_match[] __initconst = { }; DT_MACHINE_START(HIGHBANK, "Highbank") + .smp = smp_ops(highbank_smp_ops), .map_io = highbank_map_io, .init_irq = highbank_init_irq, .timer = &highbank_timer, diff --git a/arch/arm/mach-highbank/hotplug.c b/arch/arm/mach-highbank/hotplug.c index 977cebbea58..2c1b8c3c8e4 100644 --- a/arch/arm/mach-highbank/hotplug.c +++ b/arch/arm/mach-highbank/hotplug.c @@ -24,16 +24,11 @@ extern void secondary_startup(void); -int platform_cpu_kill(unsigned int cpu) -{ - return 1; -} - /* * platform-specific code to shutdown a CPU * */ -void platform_cpu_die(unsigned int cpu) +void __ref highbank_cpu_die(unsigned int cpu) { flush_cache_all(); @@ -45,12 +40,3 @@ void platform_cpu_die(unsigned int cpu) /* We should never return from idle */ panic("highbank: cpu %d unexpectedly exit from shutdown\n", cpu); } - -int platform_cpu_disable(unsigned int cpu) -{ - /* - * CPU0 should not be shut down via hotplug. cpu_idle can WFI - * or a proper shutdown or hibernate should be used. - */ - return cpu == 0 ? -EPERM : 0; -} diff --git a/arch/arm/mach-highbank/include/mach/debug-macro.S b/arch/arm/mach-highbank/include/mach/debug-macro.S deleted file mode 100644 index cb57fe5bcd0..00000000000 --- a/arch/arm/mach-highbank/include/mach/debug-macro.S +++ /dev/null @@ -1,19 +0,0 @@ -/* - * 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. - */ - - .macro addruart,rp,rv,tmp - movw \rv, #0x6000 - movt \rv, #0xfee3 - movw \rp, #0x6000 - movt \rp, #0xfff3 - .endm - -#include <asm/hardware/debug-pl01x.S> diff --git a/arch/arm/mach-highbank/include/mach/gpio.h b/arch/arm/mach-highbank/include/mach/gpio.h deleted file mode 100644 index 40a8c178f10..00000000000 --- a/arch/arm/mach-highbank/include/mach/gpio.h +++ /dev/null @@ -1 +0,0 @@ -/* empty */ diff --git a/arch/arm/mach-highbank/include/mach/timex.h b/arch/arm/mach-highbank/include/mach/timex.h deleted file mode 100644 index 88dac7a55a9..00000000000 --- a/arch/arm/mach-highbank/include/mach/timex.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef __MACH_TIMEX_H -#define __MACH_TIMEX_H - -#define CLOCK_TICK_RATE 1000000 - -#endif diff --git a/arch/arm/mach-highbank/include/mach/uncompress.h b/arch/arm/mach-highbank/include/mach/uncompress.h deleted file mode 100644 index bbe20e69632..00000000000 --- a/arch/arm/mach-highbank/include/mach/uncompress.h +++ /dev/null @@ -1,9 +0,0 @@ -#ifndef __MACH_UNCOMPRESS_H -#define __MACH_UNCOMPRESS_H - -#define putc(c) -#define flush() -#define arch_decomp_setup() -#define arch_decomp_wdog() - -#endif diff --git a/arch/arm/mach-highbank/platsmp.c b/arch/arm/mach-highbank/platsmp.c index d01364c72b4..fa9560ec6e7 100644 --- a/arch/arm/mach-highbank/platsmp.c +++ b/arch/arm/mach-highbank/platsmp.c @@ -25,12 +25,12 @@ extern void secondary_startup(void); -void __cpuinit platform_secondary_init(unsigned int cpu) +static void __cpuinit highbank_secondary_init(unsigned int cpu) { gic_secondary_init(0); } -int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) +static int __cpuinit highbank_boot_secondary(unsigned int cpu, struct task_struct *idle) { gic_raise_softirq(cpumask_of(cpu), 0); return 0; @@ -40,7 +40,7 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) * 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 highbank_smp_init_cpus(void) { unsigned int i, ncores; @@ -61,7 +61,7 @@ void __init smp_init_cpus(void) set_smp_cross_call(gic_raise_softirq); } -void __init platform_smp_prepare_cpus(unsigned int max_cpus) +static void __init highbank_smp_prepare_cpus(unsigned int max_cpus) { int i; @@ -76,3 +76,13 @@ void __init platform_smp_prepare_cpus(unsigned int max_cpus) for (i = 1; i < max_cpus; i++) highbank_set_cpu_jump(i, secondary_startup); } + +struct smp_operations highbank_smp_ops __initdata = { + .smp_init_cpus = highbank_smp_init_cpus, + .smp_prepare_cpus = highbank_smp_prepare_cpus, + .smp_secondary_init = highbank_secondary_init, + .smp_boot_secondary = highbank_boot_secondary, +#ifdef CONFIG_HOTPLUG_CPU + .cpu_die = highbank_cpu_die, +#endif +}; diff --git a/arch/arm/mach-highbank/pm.c b/arch/arm/mach-highbank/pm.c index 33b3beb8998..de866f21331 100644 --- a/arch/arm/mach-highbank/pm.c +++ b/arch/arm/mach-highbank/pm.c @@ -47,9 +47,7 @@ static const struct platform_suspend_ops highbank_pm_ops = { .valid = suspend_valid_only_mem, }; -static int __init highbank_pm_init(void) +void __init highbank_pm_init(void) { suspend_set_ops(&highbank_pm_ops); - return 0; } -module_init(highbank_pm_init); |