diff options
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/Kbuild | 2 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch_timer.h | 36 | ||||
| -rw-r--r-- | arch/arm/include/asm/hardware/iop3xx-gpio.h | 75 | ||||
| -rw-r--r-- | arch/arm/include/asm/hardware/iop3xx.h | 12 | ||||
| -rw-r--r-- | arch/arm/include/asm/mach/pci.h | 4 | ||||
| -rw-r--r-- | arch/arm/include/asm/mcpm.h | 14 | ||||
| -rw-r--r-- | arch/arm/include/asm/sched_clock.h | 4 | ||||
| -rw-r--r-- | arch/arm/include/asm/syscall.h | 6 | ||||
| -rw-r--r-- | arch/arm/include/debug/vf.S | 26 | ||||
| -rw-r--r-- | arch/arm/include/uapi/asm/hwcap.h | 1 |
10 files changed, 75 insertions, 105 deletions
diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild index d3db39860b9..1a7024b4135 100644 --- a/arch/arm/include/asm/Kbuild +++ b/arch/arm/include/asm/Kbuild @@ -31,5 +31,5 @@ generic-y += termbits.h generic-y += termios.h generic-y += timex.h generic-y += trace_clock.h -generic-y += types.h generic-y += unaligned.h +generic-y += preempt.h diff --git a/arch/arm/include/asm/arch_timer.h b/arch/arm/include/asm/arch_timer.h index 5665134bfa3..0704e0cf557 100644 --- a/arch/arm/include/asm/arch_timer.h +++ b/arch/arm/include/asm/arch_timer.h @@ -87,17 +87,43 @@ static inline u64 arch_counter_get_cntvct(void) return cval; } -static inline void arch_counter_set_user_access(void) +static inline u32 arch_timer_get_cntkctl(void) { u32 cntkctl; - asm volatile("mrc p15, 0, %0, c14, c1, 0" : "=r" (cntkctl)); + return cntkctl; +} - /* disable user access to everything */ - cntkctl &= ~((3 << 8) | (7 << 0)); - +static inline void arch_timer_set_cntkctl(u32 cntkctl) +{ asm volatile("mcr p15, 0, %0, c14, c1, 0" : : "r" (cntkctl)); } + +static inline void arch_counter_set_user_access(void) +{ + u32 cntkctl = arch_timer_get_cntkctl(); + + /* Disable user access to both physical/virtual counters/timers */ + /* Also disable virtual event stream */ + cntkctl &= ~(ARCH_TIMER_USR_PT_ACCESS_EN + | ARCH_TIMER_USR_VT_ACCESS_EN + | ARCH_TIMER_VIRT_EVT_EN + | ARCH_TIMER_USR_VCT_ACCESS_EN + | ARCH_TIMER_USR_PCT_ACCESS_EN); + arch_timer_set_cntkctl(cntkctl); +} + +static inline void arch_timer_evtstrm_enable(int divider) +{ + u32 cntkctl = arch_timer_get_cntkctl(); + cntkctl &= ~ARCH_TIMER_EVT_TRIGGER_MASK; + /* Set the divider and enable virtual event stream */ + cntkctl |= (divider << ARCH_TIMER_EVT_TRIGGER_SHIFT) + | ARCH_TIMER_VIRT_EVT_EN; + arch_timer_set_cntkctl(cntkctl); + elf_hwcap |= HWCAP_EVTSTRM; +} + #endif #endif diff --git a/arch/arm/include/asm/hardware/iop3xx-gpio.h b/arch/arm/include/asm/hardware/iop3xx-gpio.h deleted file mode 100644 index 9eda7dc92ad..00000000000 --- a/arch/arm/include/asm/hardware/iop3xx-gpio.h +++ /dev/null @@ -1,75 +0,0 @@ -/* - * arch/arm/include/asm/hardware/iop3xx-gpio.h - * - * IOP3xx GPIO wrappers - * - * Copyright (c) 2008 Arnaud Patard <arnaud.patard@rtp-net.org> - * Based on IXP4XX gpio.h file - * - * 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 - * - */ - -#ifndef __ASM_ARM_HARDWARE_IOP3XX_GPIO_H -#define __ASM_ARM_HARDWARE_IOP3XX_GPIO_H - -#include <mach/hardware.h> -#include <asm-generic/gpio.h> - -#define __ARM_GPIOLIB_COMPLEX - -#define IOP3XX_N_GPIOS 8 - -static inline int gpio_get_value(unsigned gpio) -{ - if (gpio > IOP3XX_N_GPIOS) - return __gpio_get_value(gpio); - - return gpio_line_get(gpio); -} - -static inline void gpio_set_value(unsigned gpio, int value) -{ - if (gpio > IOP3XX_N_GPIOS) { - __gpio_set_value(gpio, value); - return; - } - gpio_line_set(gpio, value); -} - -static inline int gpio_cansleep(unsigned gpio) -{ - if (gpio < IOP3XX_N_GPIOS) - return 0; - else - return __gpio_cansleep(gpio); -} - -/* - * The GPIOs are not generating any interrupt - * Note : manuals are not clear about this - */ -static inline int gpio_to_irq(int gpio) -{ - return -EINVAL; -} - -static inline int irq_to_gpio(int gpio) -{ - return -EINVAL; -} - -#endif - diff --git a/arch/arm/include/asm/hardware/iop3xx.h b/arch/arm/include/asm/hardware/iop3xx.h index 423744bf18e..2594a95ff19 100644 --- a/arch/arm/include/asm/hardware/iop3xx.h +++ b/arch/arm/include/asm/hardware/iop3xx.h @@ -18,16 +18,9 @@ /* * IOP3XX GPIO handling */ -#define GPIO_IN 0 -#define GPIO_OUT 1 -#define GPIO_LOW 0 -#define GPIO_HIGH 1 #define IOP3XX_GPIO_LINE(x) (x) #ifndef __ASSEMBLY__ -extern void gpio_line_config(int line, int direction); -extern int gpio_line_get(int line); -extern void gpio_line_set(int line, int value); extern int init_atu; extern int iop3xx_get_init_atu(void); #endif @@ -168,11 +161,6 @@ extern int iop3xx_get_init_atu(void); /* PERCR0 DOESN'T EXIST - index from 1! */ #define IOP3XX_PERCR0 (volatile u32 *)IOP3XX_REG_ADDR(0x0710) -/* General Purpose I/O */ -#define IOP3XX_GPOE (volatile u32 *)IOP3XX_GPIO_REG(0x0000) -#define IOP3XX_GPID (volatile u32 *)IOP3XX_GPIO_REG(0x0004) -#define IOP3XX_GPOD (volatile u32 *)IOP3XX_GPIO_REG(0x0008) - /* Timers */ #define IOP3XX_TU_TMR0 (volatile u32 *)IOP3XX_TIMER_REG(0x0000) #define IOP3XX_TU_TMR1 (volatile u32 *)IOP3XX_TIMER_REG(0x0004) diff --git a/arch/arm/include/asm/mach/pci.h b/arch/arm/include/asm/mach/pci.h index 454d642a407..7fc42784bec 100644 --- a/arch/arm/include/asm/mach/pci.h +++ b/arch/arm/include/asm/mach/pci.h @@ -106,8 +106,4 @@ extern int dc21285_setup(int nr, struct pci_sys_data *); extern void dc21285_preinit(void); extern void dc21285_postinit(void); -extern struct pci_ops via82c505_ops; -extern int via82c505_setup(int nr, struct pci_sys_data *); -extern void via82c505_init(void *sysdata); - #endif /* __ASM_MACH_PCI_H */ diff --git a/arch/arm/include/asm/mcpm.h b/arch/arm/include/asm/mcpm.h index 0f7b7620e9a..fc82a88f5b6 100644 --- a/arch/arm/include/asm/mcpm.h +++ b/arch/arm/include/asm/mcpm.h @@ -76,8 +76,11 @@ int mcpm_cpu_power_up(unsigned int cpu, unsigned int cluster); * * This must be called with interrupts disabled. * - * This does not return. Re-entry in the kernel is expected via - * mcpm_entry_point. + * On success this does not return. Re-entry in the kernel is expected + * via mcpm_entry_point. + * + * This will return if mcpm_platform_register() has not been called + * previously in which case the caller should take appropriate action. */ void mcpm_cpu_power_down(void); @@ -98,8 +101,11 @@ void mcpm_cpu_power_down(void); * * This must be called with interrupts disabled. * - * This does not return. Re-entry in the kernel is expected via - * mcpm_entry_point. + * On success this does not return. Re-entry in the kernel is expected + * via mcpm_entry_point. + * + * This will return if mcpm_platform_register() has not been called + * previously in which case the caller should take appropriate action. */ void mcpm_cpu_suspend(u64 expected_residency); diff --git a/arch/arm/include/asm/sched_clock.h b/arch/arm/include/asm/sched_clock.h deleted file mode 100644 index 2389b71a8e7..00000000000 --- a/arch/arm/include/asm/sched_clock.h +++ /dev/null @@ -1,4 +0,0 @@ -/* You shouldn't include this file. Use linux/sched_clock.h instead. - * Temporary file until all asm/sched_clock.h users are gone - */ -#include <linux/sched_clock.h> diff --git a/arch/arm/include/asm/syscall.h b/arch/arm/include/asm/syscall.h index f1d96d4e809..73ddd7239b3 100644 --- a/arch/arm/include/asm/syscall.h +++ b/arch/arm/include/asm/syscall.h @@ -57,6 +57,9 @@ static inline void syscall_get_arguments(struct task_struct *task, unsigned int i, unsigned int n, unsigned long *args) { + if (n == 0) + return; + if (i + n > SYSCALL_MAX_ARGS) { unsigned long *args_bad = args + SYSCALL_MAX_ARGS - i; unsigned int n_bad = n + i - SYSCALL_MAX_ARGS; @@ -81,6 +84,9 @@ static inline void syscall_set_arguments(struct task_struct *task, unsigned int i, unsigned int n, const unsigned long *args) { + if (n == 0) + return; + if (i + n > SYSCALL_MAX_ARGS) { pr_warning("%s called with max args %d, handling only %d\n", __func__, i + n, SYSCALL_MAX_ARGS); diff --git a/arch/arm/include/debug/vf.S b/arch/arm/include/debug/vf.S new file mode 100644 index 00000000000..ba12cc44b2c --- /dev/null +++ b/arch/arm/include/debug/vf.S @@ -0,0 +1,26 @@ +/* + * Copyright 2013 Freescale Semiconductor, Inc. + * + * 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 \rp, =0x40028000 @ physical + ldr \rv, =0xfe028000 @ virtual + .endm + + .macro senduart, rd, rx + strb \rd, [\rx, #0x7] @ Data Register + .endm + + .macro busyuart, rd, rx +1001: ldrb \rd, [\rx, #0x4] @ Status Register 1 + tst \rd, #1 << 6 @ TC + beq 1001b @ wait until transmit done + .endm + + .macro waituart,rd,rx + .endm diff --git a/arch/arm/include/uapi/asm/hwcap.h b/arch/arm/include/uapi/asm/hwcap.h index 6d34d080372..7dcc10d6725 100644 --- a/arch/arm/include/uapi/asm/hwcap.h +++ b/arch/arm/include/uapi/asm/hwcap.h @@ -26,5 +26,6 @@ #define HWCAP_VFPD32 (1 << 19) /* set if VFP has 32 regs (not 16) */ #define HWCAP_IDIV (HWCAP_IDIVA | HWCAP_IDIVT) #define HWCAP_LPAE (1 << 20) +#define HWCAP_EVTSTRM (1 << 21) #endif /* _UAPI__ASMARM_HWCAP_H */ |