Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6:
  Blackfin arch: fix a broken define in dma-mapping
  Blackfin arch: fix bug - Turn on DEBUG_DOUBLEFAULT, booting SMP kernel crash
  Blackfin arch: fix bug - shared lib function in L2 failed be called
  Blackfin arch: fix incorrect limit check for bf54x check_gpio
  Blackfin arch: fix bug - Cpufreq assumes clocks in kHz and not Hz.
  Blackfin arch: dont warn when running a kernel on the oldest supported silicon
  Blackfin arch: fix bug - kernel build with write back policy fails to be booted up
  Blackfin arch: fix bug - dmacopy test case fail on all platform
  Blackfin arch: Fix typo when adding CONFIG_DEBUG_VERBOSE
  Blackfin arch: don't copy bss when copying L1
  Blackfin arch: fix bug - Fail to boot jffs2 kernel for BF561 with SMP patch
  Blackfin arch: handle case of d_path() returning error in decode_address()

11 files changed, 49 insertions, 32 deletions

diff --git a/arch/blackfin/include/asm/bfin-global.h b/arch/blackfin/include/asm/bfin-global.h
index 56dcb0a2d244..77295666c34b 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/dma-mapping.h b/arch/blackfin/include/asm/dma-mapping.h
index ede748d67efd..d7d9148e433c 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/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index 6e08f425bb44..5c0800adb4dd 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-nompu/cplbinit.c b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
index 512f8c92ead5..2debc900e246 100644
--- a/arch/blackfin/kernel/cplb-nompu/cplbinit.c
+++ b/arch/blackfin/kernel/cplb-nompu/cplbinit.c
@@ -188,10 +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 77800dd83e57..0c3ea118b657 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 7f35d1046cd8..71a9a8c53cea 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 1aa2c788e228..bef025b07443 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-common/cache.S b/arch/blackfin/mach-common/cache.S
index db532181fbde..a028e9450419 100644
--- a/arch/blackfin/mach-common/cache.S
+++ b/arch/blackfin/mach-common/cache.S
@@ -25,9 +25,13 @@
  */
 .macro do_flush flushins:req optflushins optnopins label
 
+        R2 = -L1_CACHE_BYTES;
+
+        /* start = (start & -L1_CACHE_BYTES) */
+        R0 = R0 & R2;
+
         /* end = ((end - 1) & -L1_CACHE_BYTES) + L1_CACHE_BYTES; */
         R1 += -1;
-        R2 = -L1_CACHE_BYTES;
         R1 = R1 & R2;
         R1 += L1_CACHE_BYTES;
 
@@ -63,7 +67,7 @@ ENDPROC(_blackfin_icache_flush_range)
 
 /* Flush all cache lines assocoiated with this area of memory. */
 ENTRY(_blackfin_icache_dcache_flush_range)
-        do_flush IFLUSH, FLUSH
+        do_flush FLUSH, IFLUSH
 ENDPROC(_blackfin_icache_dcache_flush_range)
 
 /* Throw away all D-cached data in specified region without any obligation to
diff --git a/arch/blackfin/mach-common/cpufreq.c b/arch/blackfin/mach-common/cpufreq.c
index c22c47b60127..dda5443b37ed 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;
@@ -152,7 +152,7 @@ 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);
@@ -173,7 +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 c13fa8da28c7..bde6dc4e2614 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/mm/sram-alloc.c b/arch/blackfin/mm/sram-alloc.c
index 0f1ca6930c16..cc6f336e7313 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;