diff options
Diffstat (limited to 'arch/blackfin')
41 files changed, 262 insertions, 208 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index 8102c79aaa9..29e71ed6b8a 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -64,8 +64,11 @@ config HARDWARE_PM depends on OPROFILE source "init/Kconfig" + source "kernel/Kconfig.preempt" +source "kernel/Kconfig.freezer" + menu "Blackfin Processor Options" comment "Processor and Board Settings" diff --git a/arch/blackfin/boot/Makefile b/arch/blackfin/boot/Makefile index 522f3c12406..e028d13481a 100644 --- a/arch/blackfin/boot/Makefile +++ b/arch/blackfin/boot/Makefile @@ -25,7 +25,7 @@ $(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE $(obj)/vmImage: $(obj)/vmlinux.gz $(call if_changed,uimage) - @echo 'Kernel: $@ is ready' + @$(kecho) 'Kernel: $@ is ready' install: sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)" diff --git a/arch/blackfin/configs/BF526-EZBRD_defconfig b/arch/blackfin/configs/BF526-EZBRD_defconfig index c33bf6f8381..4443a47e516 100644 --- a/arch/blackfin/configs/BF526-EZBRD_defconfig +++ b/arch/blackfin/configs/BF526-EZBRD_defconfig @@ -748,7 +748,7 @@ CONFIG_BFIN_OTP=y # # CONFIG_CAN4LINUX is not set # CONFIG_IPMI_HANDLER is not set -CONFIG_HW_RANDOM=y +# CONFIG_HW_RANDOM is not set # CONFIG_R3964 is not set # CONFIG_RAW_DRIVER is not set # CONFIG_TCG_TPM is not set diff --git a/arch/blackfin/configs/BF527-EZKIT_defconfig b/arch/blackfin/configs/BF527-EZKIT_defconfig index 66854a83c0d..4a2a660a6b3 100644 --- a/arch/blackfin/configs/BF527-EZKIT_defconfig +++ b/arch/blackfin/configs/BF527-EZKIT_defconfig @@ -772,7 +772,7 @@ CONFIG_UNIX98_PTYS=y # # CONFIG_CAN4LINUX is not set # CONFIG_IPMI_HANDLER is not set -CONFIG_HW_RANDOM=y +# CONFIG_HW_RANDOM is not set # CONFIG_GEN_RTC is not set # CONFIG_R3964 is not set # CONFIG_RAW_DRIVER is not set diff --git a/arch/blackfin/configs/BF533-EZKIT_defconfig b/arch/blackfin/configs/BF533-EZKIT_defconfig index 6bc11db1269..deeb5e45eff 100644 --- a/arch/blackfin/configs/BF533-EZKIT_defconfig +++ b/arch/blackfin/configs/BF533-EZKIT_defconfig @@ -674,7 +674,7 @@ CONFIG_UNIX98_PTYS=y # # CONFIG_CAN4LINUX is not set # CONFIG_IPMI_HANDLER is not set -CONFIG_HW_RANDOM=y +# CONFIG_HW_RANDOM is not set # CONFIG_GEN_RTC is not set # CONFIG_R3964 is not set # CONFIG_RAW_DRIVER is not set @@ -740,7 +740,7 @@ CONFIG_SSB_POSSIBLE=y # # CONFIG_VIDEO_DEV is not set # CONFIG_DVB_CORE is not set -CONFIG_DAB=y +# CONFIG_DAB is not set # # Graphics support diff --git a/arch/blackfin/configs/BF533-STAMP_defconfig b/arch/blackfin/configs/BF533-STAMP_defconfig index d77d991a1f6..c23267ed880 100644 --- a/arch/blackfin/configs/BF533-STAMP_defconfig +++ b/arch/blackfin/configs/BF533-STAMP_defconfig @@ -681,7 +681,7 @@ CONFIG_UNIX98_PTYS=y # # CONFIG_CAN4LINUX is not set # CONFIG_IPMI_HANDLER is not set -CONFIG_HW_RANDOM=y +# CONFIG_HW_RANDOM is not set # CONFIG_GEN_RTC is not set # CONFIG_R3964 is not set # CONFIG_RAW_DRIVER is not set diff --git a/arch/blackfin/configs/BF537-STAMP_defconfig b/arch/blackfin/configs/BF537-STAMP_defconfig index 5fd7c4b143d..63a0f854745 100644 --- a/arch/blackfin/configs/BF537-STAMP_defconfig +++ b/arch/blackfin/configs/BF537-STAMP_defconfig @@ -731,7 +731,7 @@ CONFIG_CAN4LINUX=y # CONFIG_CAN_UNCTWINCAN is not set CONFIG_CAN_BLACKFIN=m # CONFIG_IPMI_HANDLER is not set -CONFIG_HW_RANDOM=y +# CONFIG_HW_RANDOM is not set # CONFIG_GEN_RTC is not set # CONFIG_R3964 is not set # CONFIG_RAW_DRIVER is not set @@ -871,7 +871,7 @@ CONFIG_SSB_POSSIBLE=y # # CONFIG_VIDEO_DEV is not set # CONFIG_DVB_CORE is not set -CONFIG_DAB=y +# CONFIG_DAB is not set # # Graphics support diff --git a/arch/blackfin/configs/BF548-EZKIT_defconfig b/arch/blackfin/configs/BF548-EZKIT_defconfig index 390669e8668..bf63660815b 100644 --- a/arch/blackfin/configs/BF548-EZKIT_defconfig +++ b/arch/blackfin/configs/BF548-EZKIT_defconfig @@ -855,7 +855,7 @@ CONFIG_UNIX98_PTYS=y # # CONFIG_CAN4LINUX is not set # CONFIG_IPMI_HANDLER is not set -CONFIG_HW_RANDOM=y +# CONFIG_HW_RANDOM is not set # CONFIG_GEN_RTC is not set # CONFIG_R3964 is not set # CONFIG_RAW_DRIVER is not set @@ -1001,7 +1001,7 @@ CONFIG_SSB_POSSIBLE=y # # CONFIG_VIDEO_DEV is not set # CONFIG_DVB_CORE is not set -CONFIG_DAB=y +# CONFIG_DAB is not set # CONFIG_USB_DABUSB is not set # diff --git a/arch/blackfin/configs/BF561-EZKIT_defconfig b/arch/blackfin/configs/BF561-EZKIT_defconfig index 976a4d7ba17..3c70d6230a1 100644 --- a/arch/blackfin/configs/BF561-EZKIT_defconfig +++ b/arch/blackfin/configs/BF561-EZKIT_defconfig @@ -719,7 +719,7 @@ CONFIG_UNIX98_PTYS=y # # CONFIG_CAN4LINUX is not set # CONFIG_IPMI_HANDLER is not set -CONFIG_HW_RANDOM=y +# CONFIG_HW_RANDOM is not set # CONFIG_GEN_RTC is not set # CONFIG_R3964 is not set # CONFIG_RAW_DRIVER is not set @@ -785,7 +785,7 @@ CONFIG_SSB_POSSIBLE=y # # CONFIG_VIDEO_DEV is not set # CONFIG_DVB_CORE is not set -CONFIG_DAB=y +# CONFIG_DAB is not set # # Graphics support diff --git a/arch/blackfin/configs/CM-BF527_defconfig b/arch/blackfin/configs/CM-BF527_defconfig index 0799aa9bba9..b6a14635fb9 100644 --- a/arch/blackfin/configs/CM-BF527_defconfig +++ b/arch/blackfin/configs/CM-BF527_defconfig @@ -679,7 +679,7 @@ CONFIG_UNIX98_PTYS=y # # CONFIG_CAN4LINUX is not set # CONFIG_IPMI_HANDLER is not set -CONFIG_HW_RANDOM=y +# CONFIG_HW_RANDOM is not set # CONFIG_GEN_RTC is not set # CONFIG_R3964 is not set # CONFIG_RAW_DRIVER is not set diff --git a/arch/blackfin/configs/CM-BF533_defconfig b/arch/blackfin/configs/CM-BF533_defconfig index 09deea44480..c3ba9066b93 100644 --- a/arch/blackfin/configs/CM-BF533_defconfig +++ b/arch/blackfin/configs/CM-BF533_defconfig @@ -672,7 +672,7 @@ CONFIG_HWMON=y # # CONFIG_VIDEO_DEV is not set # CONFIG_DVB_CORE is not set -CONFIG_DAB=y +# CONFIG_DAB is not set # # Graphics support diff --git a/arch/blackfin/configs/CM-BF537E_defconfig b/arch/blackfin/configs/CM-BF537E_defconfig index 219fc345a5f..cdc6b7feb59 100644 --- a/arch/blackfin/configs/CM-BF537E_defconfig +++ b/arch/blackfin/configs/CM-BF537E_defconfig @@ -703,7 +703,7 @@ CONFIG_HWMON=y # # CONFIG_VIDEO_DEV is not set # CONFIG_DVB_CORE is not set -CONFIG_DAB=y +# CONFIG_DAB is not set # # Graphics support diff --git a/arch/blackfin/configs/CM-BF537U_defconfig b/arch/blackfin/configs/CM-BF537U_defconfig index 9873d586fc7..f074bdcd1ce 100644 --- a/arch/blackfin/configs/CM-BF537U_defconfig +++ b/arch/blackfin/configs/CM-BF537U_defconfig @@ -683,7 +683,7 @@ CONFIG_HWMON=y # # CONFIG_VIDEO_DEV is not set # CONFIG_DVB_CORE is not set -CONFIG_DAB=y +# CONFIG_DAB is not set # # Graphics support diff --git a/arch/blackfin/configs/CM-BF548_defconfig b/arch/blackfin/configs/CM-BF548_defconfig index 0e3605fdb7b..5c44fdb8e6e 100644 --- a/arch/blackfin/configs/CM-BF548_defconfig +++ b/arch/blackfin/configs/CM-BF548_defconfig @@ -762,7 +762,7 @@ CONFIG_UNIX98_PTYS=y # # CONFIG_CAN4LINUX is not set # CONFIG_IPMI_HANDLER is not set -CONFIG_HW_RANDOM=y +# CONFIG_HW_RANDOM is not set # CONFIG_GEN_RTC is not set # CONFIG_R3964 is not set # CONFIG_RAW_DRIVER is not set @@ -909,7 +909,7 @@ CONFIG_SSB_POSSIBLE=y # # CONFIG_VIDEO_DEV is not set # CONFIG_DVB_CORE is not set -CONFIG_DAB=y +# CONFIG_DAB is not set # CONFIG_USB_DABUSB is not set # diff --git a/arch/blackfin/configs/CM-BF561_defconfig b/arch/blackfin/configs/CM-BF561_defconfig index 59c7cdbee90..086fe5dda49 100644 --- a/arch/blackfin/configs/CM-BF561_defconfig +++ b/arch/blackfin/configs/CM-BF561_defconfig @@ -684,7 +684,7 @@ CONFIG_SSB_POSSIBLE=y # # CONFIG_VIDEO_DEV is not set # CONFIG_DVB_CORE is not set -CONFIG_DAB=y +# CONFIG_DAB is not set # # Graphics support diff --git a/arch/blackfin/include/asm/bfin-global.h b/arch/blackfin/include/asm/bfin-global.h index 56dcb0a2d24..77295666c34 100644 --- a/arch/blackfin/include/asm/bfin-global.h +++ b/arch/blackfin/include/asm/bfin-global.h @@ -101,7 +101,7 @@ extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */ extern unsigned long _ramstart, _ramend, _rambase; extern unsigned long memory_start, memory_end, physical_mem_end; extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[], - _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _ebss_b_l1[], + _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _sbss_b_l1[], _ebss_b_l1[], _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[], _ebss_l2[], _l2_lma_start[]; diff --git a/arch/blackfin/include/asm/cacheflush.h b/arch/blackfin/include/asm/cacheflush.h index 5ef9e35e9c3..4403415583f 100644 --- a/arch/blackfin/include/asm/cacheflush.h +++ b/arch/blackfin/include/asm/cacheflush.h @@ -30,11 +30,11 @@ #ifndef _BLACKFIN_CACHEFLUSH_H #define _BLACKFIN_CACHEFLUSH_H -extern void blackfin_icache_dcache_flush_range(unsigned int, unsigned int); -extern void blackfin_icache_flush_range(unsigned int, unsigned int); -extern void blackfin_dcache_flush_range(unsigned int, unsigned int); -extern void blackfin_dcache_invalidate_range(unsigned int, unsigned int); -extern void blackfin_dflush_page(void *); +extern void blackfin_icache_dcache_flush_range(unsigned long start_address, unsigned long end_address); +extern void blackfin_icache_flush_range(unsigned long start_address, unsigned long end_address); +extern void blackfin_dcache_flush_range(unsigned long start_address, unsigned long end_address); +extern void blackfin_dcache_invalidate_range(unsigned long start_address, unsigned long end_address); +extern void blackfin_dflush_page(void *page); #define flush_dcache_mmap_lock(mapping) do { } while (0) #define flush_dcache_mmap_unlock(mapping) do { } while (0) @@ -85,4 +85,21 @@ do { memcpy(dst, src, len); \ # define flush_dcache_page(page) do { } while (0) #endif +extern unsigned long reserved_mem_dcache_on; +extern unsigned long reserved_mem_icache_on; + +static inline int bfin_addr_dcachable(unsigned long addr) +{ +#ifdef CONFIG_BFIN_DCACHE + if (addr < (_ramend - DMA_UNCACHED_REGION)) + return 1; +#endif + + if (reserved_mem_dcache_on && + addr >= _ramend && addr < physical_mem_end) + return 1; + + return 0; +} + #endif /* _BLACKFIN_ICACHEFLUSH_H */ diff --git a/arch/blackfin/include/asm/cplbinit.h b/arch/blackfin/include/asm/cplbinit.h index d179b747ff0..f845b41147b 100644 --- a/arch/blackfin/include/asm/cplbinit.h +++ b/arch/blackfin/include/asm/cplbinit.h @@ -87,23 +87,6 @@ extern u_long dpdt_swapcount_table[]; #endif /* CONFIG_MPU */ -extern unsigned long reserved_mem_dcache_on; -extern unsigned long reserved_mem_icache_on; - extern void generate_cplb_tables(void); -static inline int bfin_addr_dcachable(unsigned long addr) -{ -#ifdef CONFIG_BFIN_DCACHE - if (addr < (_ramend - DMA_UNCACHED_REGION)) - return 1; -#endif - - if (reserved_mem_dcache_on && - addr >= _ramend && addr < physical_mem_end) - return 1; - - return 0; -} - #endif diff --git a/arch/blackfin/include/asm/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h index ede748d67ef..d7d9148e433 100644 --- a/arch/blackfin/include/asm/dma-mapping.h +++ b/arch/blackfin/include/asm/dma-mapping.h @@ -15,7 +15,11 @@ void dma_free_coherent(struct device *dev, size_t size, void *vaddr, #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) #define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) -#define dma_mapping_error +static inline +int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) +{ + return 0; +} /* * Map a single buffer of the indicated size for DMA in streaming mode. diff --git a/arch/blackfin/include/asm/elf.h b/arch/blackfin/include/asm/elf.h index 67a03a8a353..cdbfcfc30f6 100644 --- a/arch/blackfin/include/asm/elf.h +++ b/arch/blackfin/include/asm/elf.h @@ -122,6 +122,6 @@ do { \ #define ELF_PLATFORM (NULL) -#define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX) +#define SET_PERSONALITY(ex) set_personality(PER_LINUX) #endif diff --git a/arch/blackfin/include/asm/io.h b/arch/blackfin/include/asm/io.h index cbbf7ffdbbf..7dc77a21fdf 100644 --- a/arch/blackfin/include/asm/io.h +++ b/arch/blackfin/include/asm/io.h @@ -134,6 +134,36 @@ extern void dma_insb(unsigned long port, void *addr, unsigned short count); extern void dma_insw(unsigned long port, void *addr, unsigned short count); extern void dma_insl(unsigned long port, void *addr, unsigned short count); +static inline void readsl(const void __iomem *addr, void *buf, int len) +{ + insl((unsigned long)addr, buf, len); +} + +static inline void readsw(const void __iomem *addr, void *buf, int len) +{ + insw((unsigned long)addr, buf, len); +} + +static inline void readsb(const void __iomem *addr, void *buf, int len) +{ + insb((unsigned long)addr, buf, len); +} + +static inline void writesl(const void __iomem *addr, const void *buf, int len) +{ + outsl((unsigned long)addr, buf, len); +} + +static inline void writesw(const void __iomem *addr, const void *buf, int len) +{ + outsw((unsigned long)addr, buf, len); +} + +static inline void writesb(const void __iomem *addr, const void *buf, int len) +{ + outsb((unsigned long)addr, buf, len); +} + /* * Map some physical address range into the kernel address space. */ diff --git a/arch/blackfin/include/asm/timex.h b/arch/blackfin/include/asm/timex.h index 22b0806161b..248aeb06680 100644 --- a/arch/blackfin/include/asm/timex.h +++ b/arch/blackfin/include/asm/timex.h @@ -16,7 +16,7 @@ typedef unsigned long long cycles_t; static inline cycles_t get_cycles(void) { unsigned long tmp, tmp2; - __asm__("%0 = cycles; %1 = cycles2;" : "=d"(tmp), "=d"(tmp2)); + __asm__ __volatile__("%0 = cycles; %1 = cycles2;" : "=d"(tmp), "=d"(tmp2)); return tmp | ((cycles_t)tmp2 << 32); } diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c index 6e08f425bb4..5c0800adb4d 100644 --- a/arch/blackfin/kernel/bfin_gpio.c +++ b/arch/blackfin/kernel/bfin_gpio.c @@ -218,7 +218,7 @@ inline int check_gpio(unsigned gpio) if (gpio == GPIO_PB15 || gpio == GPIO_PC14 || gpio == GPIO_PC15 || gpio == GPIO_PH14 || gpio == GPIO_PH15 || gpio == GPIO_PJ14 || gpio == GPIO_PJ15 - || gpio > MAX_BLACKFIN_GPIOS) + || gpio >= MAX_BLACKFIN_GPIOS) return -EINVAL; return 0; } diff --git a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c index 5094677fd09..baa52e261f0 100644 --- a/arch/blackfin/kernel/cplb-mpu/cplbmgr.c +++ b/arch/blackfin/kernel/cplb-mpu/cplbmgr.c @@ -21,6 +21,7 @@ #include <linux/mm.h> #include <asm/blackfin.h> +#include <asm/cacheflush.h> #include <asm/cplbinit.h> #include <asm/mmu_context.h> @@ -144,9 +145,7 @@ static noinline int dcplb_miss(void) d_data = CPLB_SUPV_WR | CPLB_VALID | CPLB_DIRTY | PAGE_SIZE_4KB; #ifdef CONFIG_BFIN_DCACHE - if (addr < _ramend - DMA_UNCACHED_REGION || - (reserved_mem_dcache_on && addr >= _ramend && - addr < physical_mem_end)) { + if (bfin_addr_dcachable(addr)) { d_data |= CPLB_L1_CHBL | ANOMALY_05000158_WORKAROUND; #ifdef CONFIG_BFIN_WT d_data |= CPLB_L1_AOW | CPLB_WT; diff --git a/arch/blackfin/kernel/cplb-nompu/cplbinit.c b/arch/blackfin/kernel/cplb-nompu/cplbinit.c index 301252e8444..2debc900e24 100644 --- a/arch/blackfin/kernel/cplb-nompu/cplbinit.c +++ b/arch/blackfin/kernel/cplb-nompu/cplbinit.c @@ -23,6 +23,7 @@ #include <linux/module.h> #include <asm/blackfin.h> +#include <asm/cacheflush.h> #include <asm/cplb.h> #include <asm/cplbinit.h> @@ -187,10 +188,11 @@ static struct cplb_desc cplb_data[] = { static u16 __init lock_kernel_check(u32 start, u32 end) { - if ((end <= (u32) _end && end >= (u32)_stext) || - (start <= (u32) _end && start >= (u32)_stext)) - return IN_KERNEL; - return 0; + if (start >= (u32)_end || end <= (u32)_stext) + return 0; + + /* This cplb block overlapped with kernel area. */ + return IN_KERNEL; } static unsigned short __init diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c index 77800dd83e5..0c3ea118b65 100644 --- a/arch/blackfin/kernel/process.c +++ b/arch/blackfin/kernel/process.c @@ -351,10 +351,15 @@ int _access_ok(unsigned long addr, unsigned long size) return 1; #endif #if L1_DATA_B_LENGTH != 0 - if (addr >= L1_DATA_B_START + if (addr >= L1_DATA_B_START + (_ebss_b_l1 - _sdata_b_l1) && addr + size <= L1_DATA_B_START + L1_DATA_B_LENGTH) return 1; #endif +#if L2_LENGTH != 0 + if (addr >= L2_START + (_ebss_l2 - _stext_l2) + && addr + size <= L2_START + L2_LENGTH) + return 1; +#endif return 0; } EXPORT_SYMBOL(_access_ok); diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c index 7f35d1046cd..71a9a8c53ce 100644 --- a/arch/blackfin/kernel/setup.c +++ b/arch/blackfin/kernel/setup.c @@ -119,23 +119,23 @@ void __init bfin_relocate_l1_mem(void) /* Copy _stext_l1 to _etext_l1 to L1 instruction SRAM */ dma_memcpy(_stext_l1, _l1_lma_start, l1_code_length); - l1_data_a_length = _ebss_l1 - _sdata_l1; + l1_data_a_length = _sbss_l1 - _sdata_l1; if (l1_data_a_length > L1_DATA_A_LENGTH) panic("L1 Data SRAM Bank A Overflow\n"); - /* Copy _sdata_l1 to _ebss_l1 to L1 data bank A SRAM */ + /* Copy _sdata_l1 to _sbss_l1 to L1 data bank A SRAM */ dma_memcpy(_sdata_l1, _l1_lma_start + l1_code_length, l1_data_a_length); - l1_data_b_length = _ebss_b_l1 - _sdata_b_l1; + l1_data_b_length = _sbss_b_l1 - _sdata_b_l1; if (l1_data_b_length > L1_DATA_B_LENGTH) panic("L1 Data SRAM Bank B Overflow\n"); - /* Copy _sdata_b_l1 to _ebss_b_l1 to L1 data bank B SRAM */ + /* Copy _sdata_b_l1 to _sbss_b_l1 to L1 data bank B SRAM */ dma_memcpy(_sdata_b_l1, _l1_lma_start + l1_code_length + l1_data_a_length, l1_data_b_length); if (L2_LENGTH != 0) { - l2_length = _ebss_l2 - _stext_l2; + l2_length = _sbss_l2 - _stext_l2; if (l2_length > L2_LENGTH) panic("L2 SRAM Overflow\n"); @@ -827,7 +827,7 @@ void __init setup_arch(char **cmdline_p) printk(KERN_ERR "Warning: Compiled for Rev %d, but running on Rev %d\n", bfin_compiled_revid(), bfin_revid()); } - if (bfin_revid() <= CONFIG_BF_REV_MIN || bfin_revid() > CONFIG_BF_REV_MAX) + if (bfin_revid() < CONFIG_BF_REV_MIN || bfin_revid() > CONFIG_BF_REV_MAX) printk(KERN_ERR "Warning: Unsupported Chip Revision ADSP-%s Rev 0.%d detected\n", CPU, bfin_revid()); } diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c index 1aa2c788e22..bef025b0744 100644 --- a/arch/blackfin/kernel/traps.c +++ b/arch/blackfin/kernel/traps.c @@ -59,7 +59,7 @@ #endif -#ifdef CONFIG_VERBOSE_DEBUG +#ifdef CONFIG_DEBUG_VERBOSE #define verbose_printk(fmt, arg...) \ printk(fmt, ##arg) #else @@ -147,9 +147,12 @@ static void decode_address(char *buf, unsigned long address) char *name = p->comm; struct file *file = vma->vm_file; - if (file) - name = d_path(&file->f_path, _tmpbuf, + if (file) { + char *d_name = d_path(&file->f_path, _tmpbuf, sizeof(_tmpbuf)); + if (!IS_ERR(d_name)) + name = d_name; + } /* FLAT does not have its text aligned to the start of * the map while FDPIC ELF does ... @@ -571,7 +574,7 @@ asmlinkage void trap_c(struct pt_regs *fp) #endif panic("Kernel exception"); } else { -#ifdef CONFIG_VERBOSE_DEBUG +#ifdef CONFIG_DEBUG_VERBOSE unsigned long *stack; /* Dump the user space stack */ stack = (unsigned long *)rdusp(); diff --git a/arch/blackfin/mach-bf527/head.S b/arch/blackfin/mach-bf527/head.S index 6588170e384..0eb1da85db7 100644 --- a/arch/blackfin/mach-bf527/head.S +++ b/arch/blackfin/mach-bf527/head.S @@ -88,7 +88,7 @@ ENTRY(_start_dma_code) r1 = r1 << 8; /* Shift it over */ r0 = r1 | r0; /* add them all together */ #ifdef ANOMALY_05000265 - r0 = BITSET(r0, 15); /* Add 250 mV of hysteresis to SPORT input pins */ + BITSET(r0, 15); /* Add 250 mV of hysteresis to SPORT input pins */ #endif p0.h = hi(PLL_CTL); diff --git a/arch/blackfin/mach-bf533/head.S b/arch/blackfin/mach-bf533/head.S index 619685b94d9..9fc95aaca43 100644 --- a/arch/blackfin/mach-bf533/head.S +++ b/arch/blackfin/mach-bf533/head.S @@ -79,7 +79,7 @@ ENTRY(_start_dma_code) r1 = r1 << 8; /* Shift it over */ r0 = r1 | r0; /* add them all together */ #ifdef ANOMALY_05000265 - r0 = BITSET(r0, 15); /* Add 250 mV of hysteresis to SPORT input pins */ + BITSET(r0, 15); /* Add 250 mV of hysteresis to SPORT input pins */ #endif p0.h = hi(PLL_CTL); diff --git a/arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h index 34ab0e4e424..f3d9e495230 100644 --- a/arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h +++ b/arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h @@ -158,7 +158,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart) } if (uart->rts_pin >= 0) { gpio_request(uart->rts_pin, DRIVER_NAME); - gpio_direction_input(uart->rts_pin, 0); + gpio_direction_output(uart->rts_pin, 0); } #endif } diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c index dc5a30849c1..8d394393201 100644 --- a/arch/blackfin/mach-bf537/boards/stamp.c +++ b/arch/blackfin/mach-bf537/boards/stamp.c @@ -577,11 +577,6 @@ static const struct ad7877_platform_data bfin_ad7877_ts_info = { #if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE) #include <linux/spi/ad7879.h> -static struct bfin5xx_spi_chip spi_ad7879_chip_info = { - .enable_dma = 0, - .bits_per_word = 16, -}; - static const struct ad7879_platform_data bfin_ad7879_ts_info = { .model = 7879, /* Model = AD7879 */ .x_plate_ohms = 620, /* 620 Ohm from the touch datasheet */ @@ -597,6 +592,13 @@ static const struct ad7879_platform_data bfin_ad7879_ts_info = { }; #endif +#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE) +static struct bfin5xx_spi_chip spi_ad7879_chip_info = { + .enable_dma = 0, + .bits_per_word = 16, +}; +#endif + #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE) static struct bfin5xx_spi_chip spidev_chip_info = { .enable_dma = 0, @@ -750,7 +752,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = { .controller_data = &spi_ad7877_chip_info, }, #endif -#if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE) +#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE) { .modalias = "ad7879", .platform_data = &bfin_ad7879_ts_info, @@ -935,7 +937,7 @@ static struct i2c_board_info __initdata bfin_i2c_board_info[] = { #if defined(CONFIG_JOYSTICK_AD7142) || defined(CONFIG_JOYSTICK_AD7142_MODULE) { I2C_BOARD_INFO("ad7142_joystick", 0x2C), - .irq = 55, + .irq = IRQ_PF5, }, #endif #if defined(CONFIG_TWI_LCD) || defined(CONFIG_TWI_LCD_MODULE) @@ -946,7 +948,14 @@ static struct i2c_board_info __initdata bfin_i2c_board_info[] = { #if defined(CONFIG_TWI_KEYPAD) || defined(CONFIG_TWI_KEYPAD_MODULE) { I2C_BOARD_INFO("pcf8574_keypad", 0x27), - .irq = 72, + .irq = IRQ_PG6, + }, +#endif +#if defined(CONFIG_TOUCHSCREEN_AD7879_I2C) || defined(CONFIG_TOUCHSCREEN_AD7879_I2C_MODULE) + { + I2C_BOARD_INFO("ad7879", 0x2F), + .irq = IRQ_PG5, + .platform_data = (void *)&bfin_ad7879_ts_info, }, #endif }; diff --git a/arch/blackfin/mach-bf537/head.S b/arch/blackfin/mach-bf537/head.S index 559a7eef7a3..f5c94bf80e3 100644 --- a/arch/blackfin/mach-bf537/head.S +++ b/arch/blackfin/mach-bf537/head.S @@ -88,7 +88,7 @@ ENTRY(_start_dma_code) r1 = r1 << 8; /* Shift it over */ r0 = r1 | r0; /* add them all together */ #ifdef ANOMALY_05000265 - r0 = BITSET(r0, 15); /* Add 250 mV of hysteresis to SPORT input pins */ + BITSET(r0, 15); /* Add 250 mV of hysteresis to SPORT input pins */ #endif p0.h = hi(PLL_CTL); diff --git a/arch/blackfin/mach-bf548/head.S b/arch/blackfin/mach-bf548/head.S index 051b05c8802..93b361dff27 100644 --- a/arch/blackfin/mach-bf548/head.S +++ b/arch/blackfin/mach-bf548/head.S @@ -95,7 +95,7 @@ ENTRY(_start_dma_code) r1 = r1 << 8; /* Shift it over */ r0 = r1 | r0; /* add them all together */ #ifdef ANOMALY_05000265 - r0 = BITSET(r0, 15); /* Add 250 mV of hysteresis to SPORT input pins */ + BITSET(r0, 15); /* Add 250 mV of hysteresis to SPORT input pins */ #endif p0.h = hi(PLL_CTL); diff --git a/arch/blackfin/mach-bf561/head.S b/arch/blackfin/mach-bf561/head.S index 0b28137b3de..31a777a9e69 100644 --- a/arch/blackfin/mach-bf561/head.S +++ b/arch/blackfin/mach-bf561/head.S @@ -78,7 +78,7 @@ ENTRY(_start_dma_code) r1 = r1 << 8; /* Shift it over */ r0 = r1 | r0; /* add them all together */ #ifdef ANOMALY_05000265 - r0 = BITSET(r0, 15); /* Add 250 mV of hysteresis to SPORT input pins */ + BITSET(r0, 15); /* Add 250 mV of hysteresis to SPORT input pins */ #endif p0.h = hi(PLL_CTL); diff --git a/arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h b/arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h index f5327264357..043bfcf26c5 100644 --- a/arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h +++ b/arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h @@ -158,7 +158,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart) } if (uart->rts_pin >= 0) { gpio_request(uart->rts_pin, DRIVER_NAME); - gpio_direction_input(uart->rts_pin, 0); + gpio_direction_output(uart->rts_pin, 0); } #endif } diff --git a/arch/blackfin/mach-common/cache.S b/arch/blackfin/mach-common/cache.S index 85f8c79b3c3..a028e945041 100644 --- a/arch/blackfin/mach-common/cache.S +++ b/arch/blackfin/mach-common/cache.S @@ -1,148 +1,95 @@ /* - * File: arch/blackfin/mach-common/cache.S - * Based on: - * Author: LG Soft India + * Blackfin cache control code * - * Created: - * Description: cache control support + * Copyright 2004-2008 Analog Devices Inc. * - * Modified: - * Copyright 2004-2006 Analog Devices Inc. + * Enter bugs at http://blackfin.uclinux.org/ * - * Bugs: Enter bugs at http://blackfin.uclinux.org/ - * - * 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, see the file COPYING, or write - * to the Free Software Foundation, Inc., - * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * Licensed under the GPL-2 or later. */ #include <linux/linkage.h> -#include <asm/cplb.h> -#include <asm/entry.h> #include <asm/blackfin.h> #include <asm/cache.h> +#include <asm/page.h> .text -/* - * blackfin_cache_flush_range(start, end) - * Invalidate all cache lines assocoiated with this - * area of memory. +/* Since all L1 caches work the same way, we use the same method for flushing + * them. Only the actual flush instruction differs. We write this in asm as + * GCC can be hard to coax into writing nice hardware loops. * - * start: Start address - * end: End address + * Also, we assume the following register setup: + * R0 = start address + * R1 = end address */ -ENTRY(_blackfin_icache_flush_range) +.macro do_flush flushins:req optflushins optnopins label + R2 = -L1_CACHE_BYTES; - R2 = R0 & R2; - P0 = R2; - P1 = R1; - CSYNC(R3); - IFLUSH [P0]; + + /* start = (start & -L1_CACHE_BYTES) */ + R0 = R0 & R2; + + /* end = ((end - 1) & -L1_CACHE_BYTES) + L1_CACHE_BYTES; */ + R1 += -1; + R1 = R1 & R2; + R1 += L1_CACHE_BYTES; + + /* count = (end - start) >> L1_CACHE_SHIFT */ + R2 = R1 - R0; + R2 >>= L1_CACHE_SHIFT; + P1 = R2; + +.ifnb \label +\label : +.endif + P0 = R0; + LSETUP (1f, 2f) LC1 = P1; 1: - IFLUSH [P0++]; - CC = P0 < P1 (iu); - IF CC JUMP 1b (bp); - IFLUSH [P0]; - SSYNC(R3); +.ifnb \optflushins + \optflushins [P0]; +.endif +.ifb \optnopins +2: +.endif + \flushins [P0++]; +.ifnb \optnopins +2: \optnopins; +.endif + RTS; -ENDPROC(_blackfin_icache_flush_range) +.endm -/* - * blackfin_icache_dcache_flush_range(start, end) - * FLUSH all cache lines assocoiated with this - * area of memory. - * - * start: Start address - * end: End address - */ +/* Invalidate all instruction cache lines assocoiated with this memory area */ +ENTRY(_blackfin_icache_flush_range) + do_flush IFLUSH, , nop +ENDPROC(_blackfin_icache_flush_range) +/* Flush all cache lines assocoiated with this area of memory. */ ENTRY(_blackfin_icache_dcache_flush_range) - R2 = -L1_CACHE_BYTES; - R2 = R0 & R2; - P0 = R2; - P1 = R1; - CSYNC(R3); - IFLUSH [P0]; -1: - FLUSH [P0]; - IFLUSH [P0++]; - CC = P0 < P1 (iu); - IF CC JUMP 1b (bp); - IFLUSH [P0]; - FLUSH [P0]; - SSYNC(R3); - RTS; + do_flush FLUSH, IFLUSH ENDPROC(_blackfin_icache_dcache_flush_range) /* Throw away all D-cached data in specified region without any obligation to - * write them back. However, we must clean the D-cached entries around the - * boundaries of the start and/or end address is not cache aligned. - * - * Start: start address, - * end : end address. + * write them back. Since the Blackfin ISA does not have an "invalidate" + * instruction, we use flush/invalidate. Perhaps as a speed optimization we + * could bang on the DTEST MMRs ... */ - ENTRY(_blackfin_dcache_invalidate_range) - R2 = -L1_CACHE_BYTES; - R2 = R0 & R2; - P0 = R2; - P1 = R1; - CSYNC(R3); - FLUSHINV[P0]; -1: - FLUSHINV[P0++]; - CC = P0 < P1 (iu); - IF CC JUMP 1b (bp); - - /* If the data crosses a cache line, then we'll be pointing to - * the last cache line, but won't have flushed/invalidated it yet, - * so do one more. - */ - FLUSHINV[P0]; - SSYNC(R3); - RTS; + do_flush FLUSHINV ENDPROC(_blackfin_dcache_invalidate_range) +/* Flush all data cache lines assocoiated with this memory area */ ENTRY(_blackfin_dcache_flush_range) - R2 = -L1_CACHE_BYTES; - R2 = R0 & R2; - P0 = R2; - P1 = R1; - CSYNC(R3); - FLUSH[P0]; -1: - FLUSH[P0++]; - CC = P0 < P1 (iu); - IF CC JUMP 1b (bp); - - /* If the data crosses a cache line, then we'll be pointing to - * the last cache line, but won't have flushed it yet, so do - * one more. - */ - FLUSH[P0]; - SSYNC(R3); - RTS; + do_flush FLUSH, , , .Ldfr ENDPROC(_blackfin_dcache_flush_range) +/* Our headers convert the page structure to an address, so just need to flush + * its contents like normal. We know the start address is page aligned (which + * greater than our cache alignment), as is the end address. So just jump into + * the middle of the dcache flush function. + */ ENTRY(_blackfin_dflush_page) P1 = 1 << (PAGE_SHIFT - L1_CACHE_SHIFT); - P0 = R0; - CSYNC(R3); - FLUSH[P0]; - LSETUP (.Lfl1, .Lfl1) LC0 = P1; -.Lfl1: FLUSH [P0++]; - SSYNC(R3); - RTS; + jump .Ldfr; ENDPROC(_blackfin_dflush_page) diff --git a/arch/blackfin/mach-common/cpufreq.c b/arch/blackfin/mach-common/cpufreq.c index 75cdad291e8..dda5443b37e 100644 --- a/arch/blackfin/mach-common/cpufreq.c +++ b/arch/blackfin/mach-common/cpufreq.c @@ -72,13 +72,13 @@ unsigned int __bfin_cycles_mod; /**************************************************************************/ -static unsigned int bfin_getfreq(unsigned int cpu) +static unsigned int bfin_getfreq_khz(unsigned int cpu) { /* The driver only support single cpu */ if (cpu != 0) return -1; - return get_cclk(); + return get_cclk() / 1000; } @@ -96,7 +96,7 @@ static int bfin_target(struct cpufreq_policy *policy, cclk_hz = bfin_freq_table[index].frequency; - freqs.old = bfin_getfreq(0); + freqs.old = bfin_getfreq_khz(0); freqs.new = cclk_hz; freqs.cpu = 0; @@ -137,8 +137,8 @@ static int __init __bfin_cpu_init(struct cpufreq_policy *policy) if (policy->cpu != 0) return -EINVAL; - cclk = get_cclk(); - sclk = get_sclk(); + cclk = get_cclk() / 1000; + sclk = get_sclk() / 1000; #if ANOMALY_05000273 || (!defined(CONFIG_BF54x) && defined(CONFIG_BFIN_DCACHE)) min_cclk = sclk * 2; @@ -152,14 +152,12 @@ static int __init __bfin_cpu_init(struct cpufreq_policy *policy) dpm_state_table[index].csel = csel << 4; /* Shift now into PLL_DIV bitpos */ dpm_state_table[index].tscale = (TIME_SCALE / (1 << csel)) - 1; - pr_debug("cpufreq: freq:%d csel:%d tscale:%d\n", + pr_debug("cpufreq: freq:%d csel:0x%x tscale:%d\n", bfin_freq_table[index].frequency, dpm_state_table[index].csel, dpm_state_table[index].tscale); } - policy->governor = CPUFREQ_DEFAULT_GOVERNOR; - policy->cpuinfo.transition_latency = (bfin_read_PLL_LOCKCNT() / (sclk / 1000000)) * 1000; /*Now ,only support one cpu */ policy->cur = cclk; @@ -175,7 +173,7 @@ static struct freq_attr *bfin_freq_attr[] = { static struct cpufreq_driver bfin_driver = { .verify = bfin_verify_speed, .target = bfin_target, - .get = bfin_getfreq, + .get = bfin_getfreq_khz, .init = __bfin_cpu_init, .name = "bfin cpufreq", .owner = THIS_MODULE, diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S index c13fa8da28c..bde6dc4e261 100644 --- a/arch/blackfin/mach-common/entry.S +++ b/arch/blackfin/mach-common/entry.S @@ -277,7 +277,7 @@ ENTRY(_bfin_return_from_exception) p5.h = hi(ILAT); r6 = [p5]; r7 = 0x20; /* Did I just cause anther HW error? */ - r7 = r7 & r1; + r6 = r7 & r6; CC = R7 == R6; if CC JUMP _double_fault; #endif diff --git a/arch/blackfin/mach-common/head.S b/arch/blackfin/mach-common/head.S index 3069df58072..f123a62e245 100644 --- a/arch/blackfin/mach-common/head.S +++ b/arch/blackfin/mach-common/head.S @@ -206,6 +206,60 @@ ENTRY(_real_start) w[p0] = r0; ssync; +#if L1_DATA_A_LENGTH > 0 + r1.l = __sbss_l1; + r1.h = __sbss_l1; + r2.l = __ebss_l1; + r2.h = __ebss_l1; + r0 = 0 (z); + r2 = r2 - r1; + cc = r2 == 0; + if cc jump .L_a_l1_done; + r2 >>= 2; + p1 = r1; + p2 = r2; + lsetup (.L_clear_a_l1, .L_clear_a_l1 ) lc0 = p2; +.L_clear_a_l1: + [p1++] = r0; +.L_a_l1_done: +#endif + +#if L1_DATA_B_LENGTH > 0 + r1.l = __sbss_b_l1; + r1.h = __sbss_b_l1; + r2.l = __ebss_b_l1; + r2.h = __ebss_b_l1; + r0 = 0 (z); + r2 = r2 - r1; + cc = r2 == 0; + if cc jump .L_b_l1_done; + r2 >>= 2; + p1 = r1; + p2 = r2; + lsetup (.L_clear_b_l1, .L_clear_b_l1 ) lc0 = p2; +.L_clear_b_l1: + [p1++] = r0; +.L_b_l1_done: +#endif + +#if L2_LENGTH > 0 + r1.l = __sbss_l2; + r1.h = __sbss_l2; + r2.l = __ebss_l2; + r2.h = __ebss_l2; + r0 = 0 (z); + r2 = r2 - r1; + cc = r2 == 0; + if cc jump .L_l2_done; + r2 >>= 2; + p1 = r1; + p2 = r2; + lsetup (.L_clear_l2, .L_clear_l2 ) lc0 = p2; +.L_clear_l2: + [p1++] = r0; +.L_l2_done: +#endif + /* Zero out the bss region * Note: this will fail if bss is 0 bytes ... */ diff --git a/arch/blackfin/mm/sram-alloc.c b/arch/blackfin/mm/sram-alloc.c index 0f1ca6930c1..cc6f336e731 100644 --- a/arch/blackfin/mm/sram-alloc.c +++ b/arch/blackfin/mm/sram-alloc.c @@ -183,10 +183,10 @@ static void __init l2_sram_init(void) return; } - free_l2_sram_head.next->paddr = (void *)L2_START + - (_etext_l2 - _stext_l2) + (_edata_l2 - _sdata_l2); - free_l2_sram_head.next->size = L2_LENGTH - - (_etext_l2 - _stext_l2) + (_edata_l2 - _sdata_l2); + free_l2_sram_head.next->paddr = + (void *)L2_START + (_ebss_l2 - _stext_l2); + free_l2_sram_head.next->size = + L2_LENGTH - (_ebss_l2 - _stext_l2); free_l2_sram_head.next->pid = 0; free_l2_sram_head.next->next = NULL; |