diff options
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/barrier.h | 7 | ||||
| -rw-r--r-- | arch/arm/include/asm/dma-mapping.h | 1 | ||||
| -rw-r--r-- | arch/arm/include/asm/gpio.h | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/hardware/cache-tauros2.h | 5 | ||||
| -rw-r--r-- | arch/arm/include/asm/hardware/iop3xx.h | 12 | ||||
| -rw-r--r-- | arch/arm/include/asm/io.h | 8 | ||||
| -rw-r--r-- | arch/arm/include/asm/leds.h | 50 | ||||
| -rw-r--r-- | arch/arm/include/asm/mach/arch.h | 7 | ||||
| -rw-r--r-- | arch/arm/include/asm/mach/map.h | 8 | ||||
| -rw-r--r-- | arch/arm/include/asm/mach/pci.h | 13 | ||||
| -rw-r--r-- | arch/arm/include/asm/memory.h | 8 | ||||
| -rw-r--r-- | arch/arm/include/asm/perf_event.h | 9 | ||||
| -rw-r--r-- | arch/arm/include/asm/pmu.h | 77 | ||||
| -rw-r--r-- | arch/arm/include/asm/smp.h | 48 | ||||
| -rw-r--r-- | arch/arm/include/asm/timex.h | 4 | ||||
| -rw-r--r-- | arch/arm/include/debug/highbank.S | 17 | ||||
| -rw-r--r-- | arch/arm/include/debug/icedcc.S | 90 | ||||
| -rw-r--r-- | arch/arm/include/debug/mvebu.S | 25 | ||||
| -rw-r--r-- | arch/arm/include/debug/picoxcell.S | 35 | ||||
| -rw-r--r-- | arch/arm/include/debug/socfpga.S | 16 | ||||
| -rw-r--r-- | arch/arm/include/debug/vexpress.S | 84 |
21 files changed, 384 insertions, 142 deletions
diff --git a/arch/arm/include/asm/barrier.h b/arch/arm/include/asm/barrier.h index 05112380dc53..8dcd9c702d90 100644 --- a/arch/arm/include/asm/barrier.h +++ b/arch/arm/include/asm/barrier.h @@ -44,10 +44,9 @@ #define rmb() dsb() #define wmb() mb() #else -#include <asm/memory.h> -#define mb() do { if (arch_is_coherent()) dmb(); else barrier(); } while (0) -#define rmb() do { if (arch_is_coherent()) dmb(); else barrier(); } while (0) -#define wmb() do { if (arch_is_coherent()) dmb(); else barrier(); } while (0) +#define mb() barrier() +#define rmb() barrier() +#define wmb() barrier() #endif #ifndef CONFIG_SMP diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 5c44dcb0987b..23004847bb05 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -13,6 +13,7 @@ #define DMA_ERROR_CODE (~0) extern struct dma_map_ops arm_dma_ops; +extern struct dma_map_ops arm_coherent_dma_ops; static inline struct dma_map_ops *get_dma_ops(struct device *dev) { diff --git a/arch/arm/include/asm/gpio.h b/arch/arm/include/asm/gpio.h index c402e9b31f4c..477e0206e016 100644 --- a/arch/arm/include/asm/gpio.h +++ b/arch/arm/include/asm/gpio.h @@ -6,7 +6,9 @@ #endif /* not all ARM platforms necessarily support this API ... */ +#ifdef CONFIG_NEED_MACH_GPIO_H #include <mach/gpio.h> +#endif #ifndef __ARM_GPIOLIB_COMPLEX /* Note: this may rely upon the value of ARCH_NR_GPIOS set in mach/gpio.h */ diff --git a/arch/arm/include/asm/hardware/cache-tauros2.h b/arch/arm/include/asm/hardware/cache-tauros2.h index 538f17ca905b..295e2e40151b 100644 --- a/arch/arm/include/asm/hardware/cache-tauros2.h +++ b/arch/arm/include/asm/hardware/cache-tauros2.h @@ -8,4 +8,7 @@ * warranty of any kind, whether express or implied. */ -extern void __init tauros2_init(void); +#define CACHE_TAUROS2_PREFETCH_ON (1 << 0) +#define CACHE_TAUROS2_LINEFILL_BURST8 (1 << 1) + +extern void __init tauros2_init(unsigned int features); diff --git a/arch/arm/include/asm/hardware/iop3xx.h b/arch/arm/include/asm/hardware/iop3xx.h index 2ff2c75a4639..02fe2fbe2477 100644 --- a/arch/arm/include/asm/hardware/iop3xx.h +++ b/arch/arm/include/asm/hardware/iop3xx.h @@ -217,18 +217,8 @@ extern int iop3xx_get_init_atu(void); #define IOP3XX_PCI_LOWER_MEM_PA 0x80000000 #define IOP3XX_PCI_MEM_WINDOW_SIZE 0x08000000 -#define IOP3XX_PCI_IO_WINDOW_SIZE 0x00010000 #define IOP3XX_PCI_LOWER_IO_PA 0x90000000 -#define IOP3XX_PCI_LOWER_IO_VA 0xfe000000 -#define IOP3XX_PCI_LOWER_IO_BA 0x90000000 -#define IOP3XX_PCI_UPPER_IO_PA (IOP3XX_PCI_LOWER_IO_PA +\ - IOP3XX_PCI_IO_WINDOW_SIZE - 1) -#define IOP3XX_PCI_UPPER_IO_VA (IOP3XX_PCI_LOWER_IO_VA +\ - IOP3XX_PCI_IO_WINDOW_SIZE - 1) -#define IOP3XX_PCI_IO_PHYS_TO_VIRT(addr) (((u32) (addr) -\ - IOP3XX_PCI_LOWER_IO_PA) +\ - IOP3XX_PCI_LOWER_IO_VA) - +#define IOP3XX_PCI_LOWER_IO_BA 0x00000000 #ifndef __ASSEMBLY__ diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h index 815c669fec0a..8f4db67533e5 100644 --- a/arch/arm/include/asm/io.h +++ b/arch/arm/include/asm/io.h @@ -113,11 +113,19 @@ static inline void __iomem *__typesafe_io(unsigned long addr) #define __iowmb() do { } while (0) #endif +/* PCI fixed i/o mapping */ +#define PCI_IO_VIRT_BASE 0xfee00000 + +extern int pci_ioremap_io(unsigned int offset, phys_addr_t phys_addr); + /* * Now, pick up the machine-defined IO definitions */ #ifdef CONFIG_NEED_MACH_IO_H #include <mach/io.h> +#elif defined(CONFIG_PCI) +#define IO_SPACE_LIMIT ((resource_size_t)0xfffff) +#define __io(a) __typesafe_io(PCI_IO_VIRT_BASE + ((a) & IO_SPACE_LIMIT)) #else #define __io(a) __typesafe_io((a) & IO_SPACE_LIMIT) #endif diff --git a/arch/arm/include/asm/leds.h b/arch/arm/include/asm/leds.h deleted file mode 100644 index c545739f39b7..000000000000 --- a/arch/arm/include/asm/leds.h +++ /dev/null @@ -1,50 +0,0 @@ -/* - * arch/arm/include/asm/leds.h - * - * Copyright (C) 1998 Russell King - * - * 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. - * - * Event-driven interface for LEDs on machines - * Added led_start and led_stop- Alex Holden, 28th Dec 1998. - */ -#ifndef ASM_ARM_LEDS_H -#define ASM_ARM_LEDS_H - - -typedef enum { - led_idle_start, - led_idle_end, - led_timer, - led_start, - led_stop, - led_claim, /* override idle & timer leds */ - led_release, /* restore idle & timer leds */ - led_start_timer_mode, - led_stop_timer_mode, - led_green_on, - led_green_off, - led_amber_on, - led_amber_off, - led_red_on, - led_red_off, - led_blue_on, - led_blue_off, - /* - * I want this between led_timer and led_start, but - * someone has decided to export this to user space - */ - led_halted -} led_event_t; - -/* Use this routine to handle LEDs */ - -#ifdef CONFIG_LEDS -extern void (*leds_event)(led_event_t); -#else -#define leds_event(e) -#endif - -#endif diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h index 0b1c94b8c652..917d4fcfd9b4 100644 --- a/arch/arm/include/asm/mach/arch.h +++ b/arch/arm/include/asm/mach/arch.h @@ -14,6 +14,12 @@ struct tag; struct meminfo; struct sys_timer; struct pt_regs; +struct smp_operations; +#ifdef CONFIG_SMP +#define smp_ops(ops) (&(ops)) +#else +#define smp_ops(ops) (struct smp_operations *)NULL +#endif struct machine_desc { unsigned int nr; /* architecture number */ @@ -35,6 +41,7 @@ struct machine_desc { unsigned char reserve_lp1 :1; /* never has lp1 */ unsigned char reserve_lp2 :1; /* never has lp2 */ char restart_mode; /* default restart mode */ + struct smp_operations *smp; /* SMP operations */ void (*fixup)(struct tag *, char **, struct meminfo *); void (*reserve)(void);/* reserve mem blocks */ diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h index a6efcdd6fd25..195ac2f9d3d3 100644 --- a/arch/arm/include/asm/mach/map.h +++ b/arch/arm/include/asm/mach/map.h @@ -9,6 +9,9 @@ * * Page table mapping constructs and function prototypes */ +#ifndef __ASM_MACH_MAP_H +#define __ASM_MACH_MAP_H + #include <asm/io.h> struct map_desc { @@ -34,6 +37,8 @@ struct map_desc { #ifdef CONFIG_MMU extern void iotable_init(struct map_desc *, int); +extern void vm_reserve_area_early(unsigned long addr, unsigned long size, + void *caller); struct mem_type; extern const struct mem_type *get_mem_type(unsigned int type); @@ -44,4 +49,7 @@ extern int ioremap_page(unsigned long virt, unsigned long phys, const struct mem_type *mtype); #else #define iotable_init(map,num) do { } while (0) +#define vm_reserve_area_early(a,s,c) do { } while (0) +#endif + #endif diff --git a/arch/arm/include/asm/mach/pci.h b/arch/arm/include/asm/mach/pci.h index 26c511fddf8f..db9fedb57f2c 100644 --- a/arch/arm/include/asm/mach/pci.h +++ b/arch/arm/include/asm/mach/pci.h @@ -11,6 +11,8 @@ #ifndef __ASM_MACH_PCI_H #define __ASM_MACH_PCI_H +#include <linux/ioport.h> + struct pci_sys_data; struct pci_ops; struct pci_bus; @@ -42,6 +44,8 @@ struct pci_sys_data { unsigned long io_offset; /* bus->cpu IO mapping offset */ struct pci_bus *bus; /* PCI bus */ struct list_head resources; /* root bus resources (apertures) */ + struct resource io_res; + char io_res_name[12]; /* Bridge swizzling */ u8 (*swizzle)(struct pci_dev *, u8 *); /* IRQ mapping */ @@ -55,6 +59,15 @@ struct pci_sys_data { void pci_common_init(struct hw_pci *); /* + * Setup early fixed I/O mapping. + */ +#if defined(CONFIG_PCI) +extern void pci_map_io_early(unsigned long pfn); +#else +static inline void pci_map_io_early(unsigned long pfn) {} +#endif + +/* * PCI controllers */ extern struct pci_ops iop3xx_ops; diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 5f6ddcc56452..73cf03aa981e 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -275,14 +275,6 @@ static inline __deprecated void *bus_to_virt(unsigned long x) #define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) #define virt_addr_valid(kaddr) ((unsigned long)(kaddr) >= PAGE_OFFSET && (unsigned long)(kaddr) < (unsigned long)high_memory) -/* - * Optional coherency support. Currently used only by selected - * Intel XSC3-based systems. - */ -#ifndef arch_is_coherent -#define arch_is_coherent() 0 -#endif - #endif #include <asm-generic/memory_model.h> diff --git a/arch/arm/include/asm/perf_event.h b/arch/arm/include/asm/perf_event.h index e074948d8143..625cd621a436 100644 --- a/arch/arm/include/asm/perf_event.h +++ b/arch/arm/include/asm/perf_event.h @@ -12,6 +12,13 @@ #ifndef __ARM_PERF_EVENT_H__ #define __ARM_PERF_EVENT_H__ -/* Nothing to see here... */ +/* + * The ARMv7 CPU PMU supports up to 32 event counters. + */ +#define ARMPMU_MAX_HWEVENTS 32 + +#define HW_OP_UNSUPPORTED 0xFFFF +#define C(_x) PERF_COUNT_HW_CACHE_##_x +#define CACHE_OP_UNSUPPORTED 0xFFFF #endif /* __ARM_PERF_EVENT_H__ */ diff --git a/arch/arm/include/asm/pmu.h b/arch/arm/include/asm/pmu.h index 4432305f4a2a..a26170dce02e 100644 --- a/arch/arm/include/asm/pmu.h +++ b/arch/arm/include/asm/pmu.h @@ -16,69 +16,30 @@ #include <linux/perf_event.h> /* - * Types of PMUs that can be accessed directly and require mutual - * exclusion between profiling tools. - */ -enum arm_pmu_type { - ARM_PMU_DEVICE_CPU = 0, - ARM_NUM_PMU_DEVICES, -}; - -/* * struct arm_pmu_platdata - ARM PMU platform data * * @handle_irq: an optional handler which will be called from the * interrupt and passed the address of the low level handler, * and can be used to implement any platform specific handling * before or after calling it. - * @enable_irq: an optional handler which will be called after - * request_irq and be used to handle some platform specific - * irq enablement - * @disable_irq: an optional handler which will be called before - * free_irq and be used to handle some platform specific - * irq disablement + * @runtime_resume: an optional handler which will be called by the + * runtime PM framework following a call to pm_runtime_get(). + * Note that if pm_runtime_get() is called more than once in + * succession this handler will only be called once. + * @runtime_suspend: an optional handler which will be called by the + * runtime PM framework following a call to pm_runtime_put(). + * Note that if pm_runtime_get() is called more than once in + * succession this handler will only be called following the + * final call to pm_runtime_put() that actually disables the + * hardware. */ struct arm_pmu_platdata { irqreturn_t (*handle_irq)(int irq, void *dev, irq_handler_t pmu_handler); - void (*enable_irq)(int irq); - void (*disable_irq)(int irq); + int (*runtime_resume)(struct device *dev); + int (*runtime_suspend)(struct device *dev); }; -#ifdef CONFIG_CPU_HAS_PMU - -/** - * reserve_pmu() - reserve the hardware performance counters - * - * Reserve the hardware performance counters in the system for exclusive use. - * Returns 0 on success or -EBUSY if the lock is already held. - */ -extern int -reserve_pmu(enum arm_pmu_type type); - -/** - * release_pmu() - Relinquish control of the performance counters - * - * Release the performance counters and allow someone else to use them. - */ -extern void -release_pmu(enum arm_pmu_type type); - -#else /* CONFIG_CPU_HAS_PMU */ - -#include <linux/err.h> - -static inline int -reserve_pmu(enum arm_pmu_type type) -{ - return -ENODEV; -} - -static inline void -release_pmu(enum arm_pmu_type type) { } - -#endif /* CONFIG_CPU_HAS_PMU */ - #ifdef CONFIG_HW_PERF_EVENTS /* The events for a given PMU register set. */ @@ -103,7 +64,6 @@ struct pmu_hw_events { struct arm_pmu { struct pmu pmu; - enum arm_pmu_type type; cpumask_t active_irqs; char *name; irqreturn_t (*handle_irq)(int irq_num, void *dev); @@ -118,6 +78,8 @@ struct arm_pmu { void (*start)(void); void (*stop)(void); void (*reset)(void *); + int (*request_irq)(irq_handler_t handler); + void (*free_irq)(void); int (*map_event)(struct perf_event *event); int num_events; atomic_t active_events; @@ -129,7 +91,9 @@ struct arm_pmu { #define to_arm_pmu(p) (container_of(p, struct arm_pmu, pmu)) -int __init armpmu_register(struct arm_pmu *armpmu, char *name, int type); +extern const struct dev_pm_ops armpmu_dev_pm_ops; + +int armpmu_register(struct arm_pmu *armpmu, char *name, int type); u64 armpmu_event_update(struct perf_event *event, struct hw_perf_event *hwc, @@ -139,6 +103,13 @@ int armpmu_event_set_period(struct perf_event *event, struct hw_perf_event *hwc, int idx); +int armpmu_map_event(struct perf_event *event, + const unsigned (*event_map)[PERF_COUNT_HW_MAX], + const unsigned (*cache_map)[PERF_COUNT_HW_CACHE_MAX] + [PERF_COUNT_HW_CACHE_OP_MAX] + [PERF_COUNT_HW_CACHE_RESULT_MAX], + u32 raw_event_mask); + #endif /* CONFIG_HW_PERF_EVENTS */ #endif /* __ARM_PMU_H__ */ diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h index ae29293270a3..2e3be16c6766 100644 --- a/arch/arm/include/asm/smp.h +++ b/arch/arm/include/asm/smp.h @@ -60,15 +60,6 @@ extern int boot_secondary(unsigned int cpu, struct task_struct *); */ asmlinkage void secondary_start_kernel(void); -/* - * Perform platform specific initialisation of the specified CPU. - */ -extern void platform_secondary_init(unsigned int cpu); - -/* - * Initialize cpu_possible map, and enable coherency - */ -extern void platform_smp_prepare_cpus(unsigned int); /* * Initial data for bringing up a secondary CPU. @@ -79,18 +70,47 @@ struct secondary_data { void *stack; }; extern struct secondary_data secondary_data; +extern volatile int pen_release; extern int __cpu_disable(void); -extern int platform_cpu_disable(unsigned int cpu); extern void __cpu_die(unsigned int cpu); extern void cpu_die(void); -extern void platform_cpu_die(unsigned int cpu); -extern int platform_cpu_kill(unsigned int cpu); -extern void platform_cpu_enable(unsigned int cpu); - extern void arch_send_call_function_single_ipi(int cpu); extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); +struct smp_operations { +#ifdef CONFIG_SMP + /* + * Setup the set of possible CPUs (via set_cpu_possible) + */ + void (*smp_init_cpus)(void); + /* + * Initialize cpu_possible map, and enable coherency + */ + void (*smp_prepare_cpus)(unsigned int max_cpus); + + /* + * Perform platform specific initialisation of the specified CPU. + */ + void (*smp_secondary_init)(unsigned int cpu); + /* + * Boot a secondary CPU, and assign it the specified idle task. + * This also gives us the initial stack to use for this CPU. + */ + int (*smp_boot_secondary)(unsigned int cpu, struct task_struct *idle); +#ifdef CONFIG_HOTPLUG_CPU + int (*cpu_kill)(unsigned int cpu); + void (*cpu_die)(unsigned int cpu); + int (*cpu_disable)(unsigned int cpu); +#endif +#endif +}; + +/* + * set platform specific SMP operations + */ +extern void smp_set_ops(struct smp_operations *); + #endif /* ifndef __ASM_ARM_SMP_H */ diff --git a/arch/arm/include/asm/timex.h b/arch/arm/include/asm/timex.h index ce119442277c..963342acebb7 100644 --- a/arch/arm/include/asm/timex.h +++ b/arch/arm/include/asm/timex.h @@ -13,7 +13,11 @@ #define _ASMARM_TIMEX_H #include <asm/arch_timer.h> +#ifdef CONFIG_ARCH_MULTIPLATFORM +#define CLOCK_TICK_RATE 1000000 +#else #include <mach/timex.h> +#endif typedef unsigned long cycles_t; diff --git a/arch/arm/include/debug/highbank.S b/arch/arm/include/debug/highbank.S new file mode 100644 index 000000000000..8cad4322a5a2 --- /dev/null +++ b/arch/arm/include/debug/highbank.S @@ -0,0 +1,17 @@ +/* + * 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 + ldr \rv, =0xfee36000 + ldr \rp, =0xfff36000 + .endm + +#include <asm/hardware/debug-pl01x.S> diff --git a/arch/arm/include/debug/icedcc.S b/arch/arm/include/debug/icedcc.S new file mode 100644 index 000000000000..43afcb021fa3 --- /dev/null +++ b/arch/arm/include/debug/icedcc.S @@ -0,0 +1,90 @@ +/* + * arch/arm/include/debug/icedcc.S + * + * Copyright (C) 1994-1999 Russell King + * + * 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. + * + */ + + @@ debug using ARM EmbeddedICE DCC channel + + .macro addruart, rp, rv, tmp + .endm + +#if defined(CONFIG_CPU_V6) || defined(CONFIG_CPU_V6K) || defined(CONFIG_CPU_V7) + + .macro senduart, rd, rx + mcr p14, 0, \rd, c0, c5, 0 + .endm + + .macro busyuart, rd, rx +1001: + mrc p14, 0, \rx, c0, c1, 0 + tst \rx, #0x20000000 + beq 1001b + .endm + + .macro waituart, rd, rx + mov \rd, #0x2000000 +1001: + subs \rd, \rd, #1 + bmi 1002f + mrc p14, 0, \rx, c0, c1, 0 + tst \rx, #0x20000000 + bne 1001b +1002: + .endm + +#elif defined(CONFIG_CPU_XSCALE) + + .macro senduart, rd, rx + mcr p14, 0, \rd, c8, c0, 0 + .endm + + .macro busyuart, rd, rx +1001: + mrc p14, 0, \rx, c14, c0, 0 + tst \rx, #0x10000000 + beq 1001b + .endm + + .macro waituart, rd, rx + mov \rd, #0x10000000 +1001: + subs \rd, \rd, #1 + bmi 1002f + mrc p14, 0, \rx, c14, c0, 0 + tst \rx, #0x10000000 + bne 1001b +1002: + .endm + +#else + + .macro senduart, rd, rx + mcr p14, 0, \rd, c1, c0, 0 + .endm + + .macro busyuart, rd, rx +1001: + mrc p14, 0, \rx, c0, c0, 0 + tst \rx, #2 + beq 1001b + + .endm + + .macro waituart, rd, rx + mov \rd, #0x2000000 +1001: + subs \rd, \rd, #1 + bmi 1002f + mrc p14, 0, \rx, c0, c0, 0 + tst \rx, #2 + bne 1001b +1002: + .endm + +#endif /* CONFIG_CPU_V6 */ diff --git a/arch/arm/include/debug/mvebu.S b/arch/arm/include/debug/mvebu.S new file mode 100644 index 000000000000..865c6d02b332 --- /dev/null +++ b/arch/arm/include/debug/mvebu.S @@ -0,0 +1,25 @@ +/* + * Early serial output macro for Marvell SoC + * + * Copyright (C) 2012 Marvell + * + * Lior Amsalem <alior@marvell.com> + * Gregory Clement <gregory.clement@free-electrons.com> + * + * 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 ARMADA_370_XP_REGS_PHYS_BASE 0xd0000000 +#define ARMADA_370_XP_REGS_VIRT_BASE 0xfeb00000 + + .macro addruart, rp, rv, tmp + ldr \rp, =ARMADA_370_XP_REGS_PHYS_BASE + ldr \rv, =ARMADA_370_XP_REGS_VIRT_BASE + orr \rp, \rp, #0x00012000 + orr \rv, \rv, #0x00012000 + .endm + +#define UART_SHIFT 2 +#include <asm/hardware/debug-8250.S> diff --git a/arch/arm/include/debug/picoxcell.S b/arch/arm/include/debug/picoxcell.S new file mode 100644 index 000000000000..7419deb1b948 --- /dev/null +++ b/arch/arm/include/debug/picoxcell.S @@ -0,0 +1,35 @@ +/* + * Copyright (c) 2011 Picochip Ltd., Jamie Iles + * + * 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. + * + * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit + * accesses to the 8250. + */ +#include <linux/serial_reg.h> + +#define UART_SHIFT 2 +#define PICOXCELL_UART1_BASE 0x80230000 +#define PHYS_TO_IO(x) (((x) & 0x00ffffff) | 0xfe000000) + + .macro addruart, rp, rv, tmp + ldr \rv, =PHYS_TO_IO(PICOXCELL_UART1_BASE) + ldr \rp, =PICOXCELL_UART1_BASE + .endm + + .macro senduart,rd,rx + str \rd, [\rx, #UART_TX << UART_SHIFT] + .endm + + .macro busyuart,rd,rx +1002: ldr \rd, [\rx, #UART_LSR << UART_SHIFT] + and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE + teq \rd, #UART_LSR_TEMT | UART_LSR_THRE + bne 1002b + .endm + + /* The UART's don't have any flow control IO's wired up. */ + .macro waituart,rd,rx + .endm diff --git a/arch/arm/include/debug/socfpga.S b/arch/arm/include/debug/socfpga.S new file mode 100644 index 000000000000..d6f26d23374f --- /dev/null +++ b/arch/arm/include/debug/socfpga.S @@ -0,0 +1,16 @@ +/* + * 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 + mov \rp, #DEBUG_LL_UART_OFFSET + orr \rp, \rp, #0x00c00000 + orr \rv, \rp, #0xfe000000 @ virtual base + orr \rp, \rp, #0xff000000 @ physical base + .endm + diff --git a/arch/arm/include/debug/vexpress.S b/arch/arm/include/debug/vexpress.S new file mode 100644 index 000000000000..9f509f55d078 --- /dev/null +++ b/arch/arm/include/debug/vexpress.S @@ -0,0 +1,84 @@ +/* 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 |