diff options
68 files changed, 1129 insertions, 4769 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index fffe8f814700..b1a5e77e9b10 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -16545,6 +16545,12 @@ F: drivers/phy/samsung/phy-s5pv210-usb2.c F: drivers/phy/samsung/phy-samsung-usb2.c F: drivers/phy/samsung/phy-samsung-usb2.h +SANCLOUD BEAGLEBONE ENHANCED DEVICE TREE +M: Paul Barker <paul.barker@sancloud.com> +R: Marc Murphy <marc.murphy@sancloud.com> +S: Supported +F: arch/arm/boot/dts/am335x-sancloud* + SC1200 WDT DRIVER M: Zwane Mwaikambo <zwanem@gmail.com> S: Maintained diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 1c4384db223d..98436702e0c7 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -193,6 +193,14 @@ choice their output to the USART1 port on SAMV7 based machines. + config DEBUG_AT91_SAMA7G5_FLEXCOM3 + bool "Kernel low-level debugging on SAMA7G5 FLEXCOM3" + select DEBUG_AT91_UART + depends on SOC_SAMA7G5 + help + Say Y here if you want kernel low-level debugging support + on the FLEXCOM3 port of SAMA7G5. + config DEBUG_BCM2835 bool "Kernel low-level debugging on BCM2835 PL011 UART" depends on ARCH_BCM2835 && ARCH_MULTI_V6 @@ -1668,6 +1676,7 @@ config DEBUG_UART_PHYS default 0xd4017000 if DEBUG_MMP_UART2 default 0xd4018000 if DEBUG_MMP_UART3 default 0xe0000000 if DEBUG_SPEAR13XX + default 0xe1824200 if DEBUG_AT91_SAMA7G5_FLEXCOM3 default 0xe4007000 if DEBUG_HIP04_UART default 0xe6c40000 if DEBUG_RMOBILE_SCIFA0 default 0xe6c50000 if DEBUG_RMOBILE_SCIFA1 @@ -1729,6 +1738,7 @@ config DEBUG_UART_VIRT default 0xc8821000 if DEBUG_RV1108_UART1 default 0xc8912000 if DEBUG_RV1108_UART0 default 0xe0010fe0 if ARCH_RPC + default 0xe0824200 if DEBUG_AT91_SAMA7G5_FLEXCOM3 default 0xf0010000 if DEBUG_ASM9260_UART default 0xf0100000 if DEBUG_DIGICOLOR_UA0 default 0xf01fb000 if DEBUG_NOMADIK_UART diff --git a/arch/arm/configs/ep93xx_defconfig b/arch/arm/configs/ep93xx_defconfig index cd16fb6eb8e6..88d5ecc2121e 100644 --- a/arch/arm/configs/ep93xx_defconfig +++ b/arch/arm/configs/ep93xx_defconfig @@ -12,7 +12,6 @@ CONFIG_MODULE_FORCE_UNLOAD=y # CONFIG_BLK_DEV_BSG is not set CONFIG_PARTITION_ADVANCED=y CONFIG_ARCH_EP93XX=y -CONFIG_CRUNCH=y CONFIG_MACH_ADSSPHERE=y CONFIG_MACH_EDB9301=y CONFIG_MACH_EDB9302=y diff --git a/arch/arm/include/asm/fpstate.h b/arch/arm/include/asm/fpstate.h index 9e2fe9ced084..ca42fd9ae0b3 100644 --- a/arch/arm/include/asm/fpstate.h +++ b/arch/arm/include/asm/fpstate.h @@ -77,14 +77,6 @@ union fp_state { #define FP_SIZE (sizeof(union fp_state) / sizeof(int)) -struct crunch_state { - unsigned int mvdx[16][2]; - unsigned int mvax[4][3]; - unsigned int dspsc[2]; -}; - -#define CRUNCH_SIZE sizeof(struct crunch_state) - #endif #endif diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h index 70d4cbc49ae1..a02799bd0cdf 100644 --- a/arch/arm/include/asm/thread_info.h +++ b/arch/arm/include/asm/thread_info.h @@ -65,9 +65,6 @@ struct thread_info { __u32 syscall; /* syscall number */ __u8 used_cp[16]; /* thread used copro */ unsigned long tp_value[2]; /* TLS registers */ -#ifdef CONFIG_CRUNCH - struct crunch_state crunchstate; -#endif union fp_state fpstate __attribute__((aligned(8))); union vfp_state vfpstate; #ifdef CONFIG_ARM_THUMBEE @@ -107,11 +104,6 @@ static inline struct thread_info *current_thread_info(void) ((unsigned long)(task_thread_info(tsk)->cpu_context.r7)) #endif -extern void crunch_task_disable(struct thread_info *); -extern void crunch_task_copy(struct thread_info *, void *); -extern void crunch_task_restore(struct thread_info *, void *); -extern void crunch_task_release(struct thread_info *); - extern void iwmmxt_task_disable(struct thread_info *); extern void iwmmxt_task_copy(struct thread_info *, void *); extern void iwmmxt_task_restore(struct thread_info *, void *); diff --git a/arch/arm/include/asm/ucontext.h b/arch/arm/include/asm/ucontext.h index 5c5e62cb304b..4048c92d9c2b 100644 --- a/arch/arm/include/asm/ucontext.h +++ b/arch/arm/include/asm/ucontext.h @@ -43,17 +43,6 @@ struct ucontext { */ #define DUMMY_MAGIC 0xb0d9ed01 -#ifdef CONFIG_CRUNCH -#define CRUNCH_MAGIC 0x5065cf03 -#define CRUNCH_STORAGE_SIZE (CRUNCH_SIZE + 8) - -struct crunch_sigframe { - unsigned long magic; - unsigned long size; - struct crunch_state storage; -} __attribute__((__aligned__(8))); -#endif - #ifdef CONFIG_IWMMXT /* iwmmxt_area is 0x98 bytes long, preceded by 8 bytes of signature */ #define IWMMXT_MAGIC 0x12ef842a @@ -92,9 +81,6 @@ struct vfp_sigframe * one of these. */ struct aux_sigframe { -#ifdef CONFIG_CRUNCH - struct crunch_sigframe crunch; -#endif #ifdef CONFIG_IWMMXT struct iwmmxt_sigframe iwmmxt; #endif diff --git a/arch/arm/include/uapi/asm/hwcap.h b/arch/arm/include/uapi/asm/hwcap.h index b5971dfa4b8c..990199d8b7c6 100644 --- a/arch/arm/include/uapi/asm/hwcap.h +++ b/arch/arm/include/uapi/asm/hwcap.h @@ -15,7 +15,7 @@ #define HWCAP_EDSP (1 << 7) #define HWCAP_JAVA (1 << 8) #define HWCAP_IWMMXT (1 << 9) -#define HWCAP_CRUNCH (1 << 10) +#define HWCAP_CRUNCH (1 << 10) /* Obsolete */ #define HWCAP_THUMBEE (1 << 11) #define HWCAP_NEON (1 << 12) #define HWCAP_VFPv3 (1 << 13) diff --git a/arch/arm/include/uapi/asm/ptrace.h b/arch/arm/include/uapi/asm/ptrace.h index e61c65b4018d..8896c23ccba7 100644 --- a/arch/arm/include/uapi/asm/ptrace.h +++ b/arch/arm/include/uapi/asm/ptrace.h @@ -26,8 +26,8 @@ #define PTRACE_GET_THREAD_AREA 22 #define PTRACE_SET_SYSCALL 23 /* PTRACE_SYSCALL is 24 */ -#define PTRACE_GETCRUNCHREGS 25 -#define PTRACE_SETCRUNCHREGS 26 +#define PTRACE_GETCRUNCHREGS 25 /* obsolete */ +#define PTRACE_SETCRUNCHREGS 26 /* obsolete */ #define PTRACE_GETVFPREGS 27 #define PTRACE_SETVFPREGS 28 #define PTRACE_GETHBPREGS 29 diff --git a/arch/arm/kernel/asm-offsets.c b/arch/arm/kernel/asm-offsets.c index 70993af22d80..64944701bf6a 100644 --- a/arch/arm/kernel/asm-offsets.c +++ b/arch/arm/kernel/asm-offsets.c @@ -63,9 +63,6 @@ int main(void) #ifdef CONFIG_IWMMXT DEFINE(TI_IWMMXT_STATE, offsetof(struct thread_info, fpstate.iwmmxt)); #endif -#ifdef CONFIG_CRUNCH - DEFINE(TI_CRUNCH_STATE, offsetof(struct thread_info, crunchstate)); -#endif #ifdef CONFIG_STACKPROTECTOR_PER_TASK DEFINE(TI_STACK_CANARY, offsetof(struct thread_info, stack_canary)); #endif diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index 0ea8529a4872..241b73d64df7 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -618,15 +618,9 @@ call_fpe: W(b) do_fpe @ CP#1 (FPE) W(b) do_fpe @ CP#2 (FPE) ret.w lr @ CP#3 -#ifdef CONFIG_CRUNCH - b crunch_task_enable @ CP#4 (MaverickCrunch) - b crunch_task_enable @ CP#5 (MaverickCrunch) - b crunch_task_enable @ CP#6 (MaverickCrunch) -#else ret.w lr @ CP#4 ret.w lr @ CP#5 ret.w lr @ CP#6 -#endif ret.w lr @ CP#7 ret.w lr @ CP#8 ret.w lr @ CP#9 diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c index 2771e682220b..b008859680bc 100644 --- a/arch/arm/kernel/ptrace.c +++ b/arch/arm/kernel/ptrace.c @@ -318,32 +318,6 @@ static int ptrace_setwmmxregs(struct task_struct *tsk, void __user *ufp) #endif -#ifdef CONFIG_CRUNCH -/* - * Get the child Crunch state. - */ -static int ptrace_getcrunchregs(struct task_struct *tsk, void __user *ufp) -{ - struct thread_info *thread = task_thread_info(tsk); - - crunch_task_disable(thread); /* force it to ram */ - return copy_to_user(ufp, &thread->crunchstate, CRUNCH_SIZE) - ? -EFAULT : 0; -} - -/* - * Set the child Crunch state. - */ -static int ptrace_setcrunchregs(struct task_struct *tsk, void __user *ufp) -{ - struct thread_info *thread = task_thread_info(tsk); - - crunch_task_release(thread); /* force a reload */ - return copy_from_user(&thread->crunchstate, ufp, CRUNCH_SIZE) - ? -EFAULT : 0; -} -#endif - #ifdef CONFIG_HAVE_HW_BREAKPOINT /* * Convert a virtual register number into an index for a thread_info @@ -815,16 +789,6 @@ long arch_ptrace(struct task_struct *child, long request, ret = 0; break; -#ifdef CONFIG_CRUNCH - case PTRACE_GETCRUNCHREGS: - ret = ptrace_getcrunchregs(child, datap); - break; - - case PTRACE_SETCRUNCHREGS: - ret = ptrace_setcrunchregs(child, datap); - break; -#endif - #ifdef CONFIG_VFP case PTRACE_GETVFPREGS: ret = copy_regset_to_user(child, diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index f3800c0f428b..4e0dcff3f5b0 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -25,40 +25,6 @@ extern const unsigned long sigreturn_codes[17]; static unsigned long signal_return_offset; -#ifdef CONFIG_CRUNCH -static int preserve_crunch_context(struct crunch_sigframe __user *frame) -{ - char kbuf[sizeof(*frame) + 8]; - struct crunch_sigframe *kframe; - - /* the crunch context must be 64 bit aligned */ - kframe = (struct crunch_sigframe *)((unsigned long)(kbuf + 8) & ~7); - kframe->magic = CRUNCH_MAGIC; - kframe->size = CRUNCH_STORAGE_SIZE; - crunch_task_copy(current_thread_info(), &kframe->storage); - return __copy_to_user(frame, kframe, sizeof(*frame)); -} - -static int restore_crunch_context(char __user **auxp) -{ - struct crunch_sigframe __user *frame = - (struct crunch_sigframe __user *)*auxp; - char kbuf[sizeof(*frame) + 8]; - struct crunch_sigframe *kframe; - - /* the crunch context must be 64 bit aligned */ - kframe = (struct crunch_sigframe *)((unsigned long)(kbuf + 8) & ~7); - if (__copy_from_user(kframe, frame, sizeof(*frame))) - return -1; - if (kframe->magic != CRUNCH_MAGIC || - kframe->size != CRUNCH_STORAGE_SIZE) - return -1; - *auxp += CRUNCH_STORAGE_SIZE; - crunch_task_restore(current_thread_info(), &kframe->storage); - return 0; -} -#endif - #ifdef CONFIG_IWMMXT static int preserve_iwmmxt_context(struct iwmmxt_sigframe __user *frame) @@ -205,10 +171,6 @@ static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf) err |= !valid_user_regs(regs); aux = (char __user *) sf->uc.uc_regspace; -#ifdef CONFIG_CRUNCH - if (err == 0) - err |= restore_crunch_context(&aux); -#endif #ifdef CONFIG_IWMMXT if (err == 0) err |= restore_iwmmxt_context(&aux); @@ -321,10 +283,6 @@ setup_sigframe(struct sigframe __user *sf, struct pt_regs *regs, sigset_t *set) err |= __copy_to_user(&sf->uc.uc_sigmask, set, sizeof(*set)); aux = (struct aux_sigframe __user *) sf->uc.uc_regspace; -#ifdef CONFIG_CRUNCH - if (err == 0) - err |= preserve_crunch_context(&aux->crunch); -#endif #ifdef CONFIG_IWMMXT if (err == 0) err |= preserve_iwmmxt_context(&aux->iwmmxt); diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig index ccd7e80ce943..b09bb2279f7f 100644 --- a/arch/arm/mach-at91/Kconfig +++ b/arch/arm/mach-at91/Kconfig @@ -57,6 +57,16 @@ config SOC_SAMA5D4 help Select this if you are using one of Microchip's SAMA5D4 family SoC. +config SOC_SAMA7G5 + bool "SAMA7G5 family" + depends on ARCH_MULTI_V7 + select HAVE_AT91_GENERATED_CLK + select HAVE_AT91_SAM9X60_PLL + select HAVE_AT91_UTMI + select SOC_SAMA7 + help + Select this if you are using one of Microchip's SAMA7G5 family SoC. + config SOC_AT91RM9200 bool "AT91RM9200" depends on ARCH_MULTI_V4T @@ -191,4 +201,12 @@ config SOC_SAMA5 config ATMEL_PM bool +config SOC_SAMA7 + bool + select ARM_GIC + select ATMEL_PM if PM + select ATMEL_SDRAMC + select MEMORY + select SOC_SAM_V7 + select SRAM if PM endif diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile index f565490f1b70..522b680b6446 100644 --- a/arch/arm/mach-at91/Makefile +++ b/arch/arm/mach-at91/Makefile @@ -8,6 +8,7 @@ obj-$(CONFIG_SOC_AT91RM9200) += at91rm9200.o obj-$(CONFIG_SOC_AT91SAM9) += at91sam9.o obj-$(CONFIG_SOC_SAM9X60) += sam9x60.o obj-$(CONFIG_SOC_SAMA5) += sama5.o +obj-$(CONFIG_SOC_SAMA7) += sama7.o obj-$(CONFIG_SOC_SAMV7) += samv7.o # Power Management diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h index 0a4cdcb4985b..0c3960a8b3eb 100644 --- a/arch/arm/mach-at91/generic.h +++ b/arch/arm/mach-at91/generic.h @@ -14,12 +14,14 @@ extern void __init at91sam9_pm_init(void); extern void __init sam9x60_pm_init(void); extern void __init sama5_pm_init(void); extern void __init sama5d2_pm_init(void); +extern void __init sama7_pm_init(void); #else static inline void __init at91rm9200_pm_init(void) { } static inline void __init at91sam9_pm_init(void) { } static inline void __init sam9x60_pm_init(void) { } static inline void __init sama5_pm_init(void) { } static inline void __init sama5d2_pm_init(void) { } +static inline void __init sama7_pm_init(void) { } #endif #endif /* _AT91_GENERIC_H */ diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c index 90dcdfe3b3d0..d6cfe7c4bb00 100644 --- a/arch/arm/mach-at91/pm.c +++ b/arch/arm/mach-at91/pm.c @@ -10,6 +10,7 @@ #include <linux/io.h> #include <linux/of_address.h> #include <linux/of.h> +#include <linux/of_fdt.h> #include <linux/of_platform.h> #include <linux/parser.h> #include <linux/suspend.h> @@ -27,13 +28,55 @@ #include "generic.h" #include "pm.h" +#define BACKUP_DDR_PHY_CALIBRATION (9) + +/** + * struct at91_pm_bu - AT91 power management backup unit data structure + * @suspended: true if suspended to backup mode + * @reserved: reserved + * @canary: canary data for memory checking after exit from backup mode + * @resume: resume API + * @ddr_phy_calibration: DDR PHY calibration data: ZQ0CR0, first 8 words + * of the memory + */ +struct at91_pm_bu { + int suspended; + unsigned long reserved; + phys_addr_t canary; + phys_addr_t resume; + unsigned long ddr_phy_calibration[BACKUP_DDR_PHY_CALIBRATION]; +}; + +/** + * struct at91_soc_pm - AT91 SoC power management data structure + * @config_shdwc_ws: wakeup sources configuration function for SHDWC + * @config_pmc_ws: wakeup srouces configuration function for PMC + * @ws_ids: wakup sources of_device_id array + * @data: PM data to be used on last phase of suspend + * @bu: backup unit mapped data (for backup mode) + * @memcs: memory chip select + */ struct at91_soc_pm { int (*config_shdwc_ws)(void __iomem *shdwc, u32 *mode, u32 *polarity); int (*config_pmc_ws)(void __iomem *pmc, u32 mode, u32 polarity); const struct of_device_id *ws_ids; + struct at91_pm_bu *bu; struct at91_pm_data data; + void *memcs; }; +/** + * enum at91_pm_iomaps: IOs that needs to be mapped for different PM modes + * @AT91_PM_IOMAP_SHDWC: SHDWC controller + * @AT91_PM_IOMAP_SFRBU: SFRBU controller + */ +enum at91_pm_iomaps { + AT91_PM_IOMAP_SHDWC, + AT91_PM_IOMAP_SFRBU, +}; + +#define AT91_PM_IOMAP(name) BIT(AT91_PM_IOMAP_##name) + static struct at91_soc_pm soc_pm = { .data = { .standby_mode = AT91_PM_STANDBY, @@ -71,13 +114,6 @@ static int at91_pm_valid_state(suspend_state_t state) static int canary = 0xA5A5A5A5; -static struct at91_pm_bu { - int suspended; - unsigned long reserved; - phys_addr_t canary; - phys_addr_t resume; -} *pm_bu; - struct wakeup_source_info { unsigned int pmc_fsmr_bit; unsigned int shdwc_mr_bit; @@ -116,6 +152,17 @@ static const struct of_device_id sam9x60_ws_ids[] = { { /* sentinel */ } }; +static const struct of_device_id sama7g5_ws_ids[] = { + { .compatible = "atmel,at91sam9x5-rtc", .data = &ws_info[1] }, + { .compatible = "microchip,sama7g5-ohci", .data = &ws_info[2] }, + { .compatible = "usb-ohci", .data = &ws_info[2] }, + { .compatible = "atmel,at91sam9g45-ehci", .data = &ws_info[2] }, + { .compatible = "usb-ehci", .data = &ws_info[2] }, + { .compatible = "microchip,sama7g5-sdhci", .data = &ws_info[3] }, + { .compatible = "atmel,at91sam9260-rtt", .data = &ws_info[4] }, + { /* sentinel */ } +}; + static int at91_pm_config_ws(unsigned int pm_mode, bool set) { const struct wakeup_source_info *wsi; @@ -206,6 +253,8 @@ static int at91_sam9x60_config_pmc_ws(void __iomem *pmc, u32 mode, u32 polarity) */ static int at91_pm_begin(suspend_state_t state) { + int ret; + switch (state) { case PM_SUSPEND_MEM: soc_pm.data.mode = soc_pm.data.suspend_mode; @@ -219,7 +268,16 @@ static int at91_pm_begin(suspend_state_t state) soc_pm.data.mode = -1; } - return at91_pm_config_ws(soc_pm.data.mode, true); + ret = at91_pm_config_ws(soc_pm.data.mode, true); + if (ret) + return ret; + + if (soc_pm.data.mode == AT91_PM_BACKUP) + soc_pm.bu->suspended = 1; + else if (soc_pm.bu) + soc_pm.bu->suspended = 0; + + return 0; } /* @@ -277,6 +335,19 @@ extern u32 at91_pm_suspend_in_sram_sz; static int at91_suspend_finish(unsigned long val) { + int i; + + if (soc_pm.data.mode == AT91_PM_BACKUP && soc_pm.data.ramc_phy) { + /* + * The 1st 8 words of memory might get corrupted in the process + * of DDR PHY recalibration; it is saved here in securam and it + * will be restored later, after recalibration, by bootloader + */ + for (i = 1; i < BACKUP_DDR_PHY_CALIBRATION; i++) + soc_pm.bu->ddr_phy_calibration[i] = + *((unsigned int *)soc_pm.memcs + (i - 1)); + } + flush_cache_all(); outer_disable(); @@ -288,8 +359,6 @@ static int at91_suspend_finish(unsigned long |