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-rw-r--r--arch/blackfin/kernel/bfin_dma_5xx.c223
-rw-r--r--arch/blackfin/kernel/bfin_gpio.c11
-rw-r--r--arch/blackfin/kernel/setup.c32
-rw-r--r--arch/blackfin/kernel/traps.c18
-rw-r--r--arch/blackfin/kernel/vmlinux.lds.S4
5 files changed, 250 insertions, 38 deletions
diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c
index 8ea079ebecb5..0ccb0dc3f833 100644
--- a/arch/blackfin/kernel/bfin_dma_5xx.c
+++ b/arch/blackfin/kernel/bfin_dma_5xx.c
@@ -119,7 +119,7 @@ static void clear_dma_buffer(unsigned int channel)
SSYNC();
}
-int __init blackfin_dma_init(void)
+static int __init blackfin_dma_init(void)
{
int i;
@@ -130,7 +130,9 @@ int __init blackfin_dma_init(void)
dma_ch[i].regs = base_addr[i];
mutex_init(&(dma_ch[i].dmalock));
}
-
+ /* Mark MEMDMA Channel 0 as requested since we're using it internally */
+ dma_ch[CH_MEM_STREAM0_DEST].chan_status = DMA_CHANNEL_REQUESTED;
+ dma_ch[CH_MEM_STREAM0_SRC].chan_status = DMA_CHANNEL_REQUESTED;
return 0;
}
@@ -593,14 +595,17 @@ unsigned short get_dma_curr_ycount(unsigned int channel)
}
EXPORT_SYMBOL(get_dma_curr_ycount);
-void *dma_memcpy(void *dest, const void *src, size_t size)
+void *_dma_memcpy(void *dest, const void *src, size_t size)
{
int direction; /* 1 - address decrease, 0 - address increase */
int flag_align; /* 1 - address aligned, 0 - address unaligned */
int flag_2D; /* 1 - 2D DMA needed, 0 - 1D DMA needed */
+ unsigned long flags;
if (size <= 0)
return NULL;
+
+ local_irq_save(flags);
if ((unsigned long)src < memory_end)
blackfin_dcache_flush_range((unsigned int)src,
@@ -725,18 +730,224 @@ void *dma_memcpy(void *dest, const void *src, size_t size)
if ((unsigned long)dest < memory_end)
blackfin_dcache_invalidate_range((unsigned int)dest,
(unsigned int)(dest + size));
+ local_irq_restore(flags);
return dest;
}
+
+void *dma_memcpy(void *dest, const void *src, size_t size)
+{
+ size_t bulk;
+ size_t rest;
+ void * addr;
+
+ bulk = (size >> 16) << 16;
+ rest = size - bulk;
+ if (bulk)
+ _dma_memcpy(dest, src, bulk);
+ addr = _dma_memcpy(dest+bulk, src+bulk, rest);
+ return addr;
+}
+
EXPORT_SYMBOL(dma_memcpy);
void *safe_dma_memcpy(void *dest, const void *src, size_t size)
{
- int flags = 0;
void *addr;
- local_irq_save(flags);
addr = dma_memcpy(dest, src, size);
- local_irq_restore(flags);
return addr;
}
EXPORT_SYMBOL(safe_dma_memcpy);
+
+void dma_outsb(void __iomem *addr, const void *buf, unsigned short len)
+{
+
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ blackfin_dcache_flush_range((unsigned int)buf,(unsigned int)(buf) + len);
+
+ bfin_write_MDMA_D0_START_ADDR(addr);
+ bfin_write_MDMA_D0_X_COUNT(len);
+ bfin_write_MDMA_D0_X_MODIFY(0);
+ bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_START_ADDR(buf);
+ bfin_write_MDMA_S0_X_COUNT(len);
+ bfin_write_MDMA_S0_X_MODIFY(1);
+ bfin_write_MDMA_S0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_CONFIG(DMAEN | WDSIZE_8);
+ bfin_write_MDMA_D0_CONFIG(WNR | DI_EN | DMAEN | WDSIZE_8);
+
+ while (!(bfin_read_MDMA_D0_IRQ_STATUS() & DMA_DONE));
+
+ bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_CONFIG(0);
+ bfin_write_MDMA_D0_CONFIG(0);
+ local_irq_restore(flags);
+
+}
+EXPORT_SYMBOL(dma_outsb);
+
+
+void dma_insb(const void __iomem *addr, void *buf, unsigned short len)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+ bfin_write_MDMA_D0_START_ADDR(buf);
+ bfin_write_MDMA_D0_X_COUNT(len);
+ bfin_write_MDMA_D0_X_MODIFY(1);
+ bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_START_ADDR(addr);
+ bfin_write_MDMA_S0_X_COUNT(len);
+ bfin_write_MDMA_S0_X_MODIFY(0);
+ bfin_write_MDMA_S0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_CONFIG(DMAEN | WDSIZE_8);
+ bfin_write_MDMA_D0_CONFIG(WNR | DI_EN | DMAEN | WDSIZE_8);
+
+ blackfin_dcache_invalidate_range((unsigned int)buf, (unsigned int)(buf) + len);
+
+ while (!(bfin_read_MDMA_D0_IRQ_STATUS() & DMA_DONE));
+
+ bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_CONFIG(0);
+ bfin_write_MDMA_D0_CONFIG(0);
+ local_irq_restore(flags);
+
+}
+EXPORT_SYMBOL(dma_insb);
+
+void dma_outsw(void __iomem *addr, const void *buf, unsigned short len)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ blackfin_dcache_flush_range((unsigned int)buf,(unsigned int)(buf) + len);
+
+ bfin_write_MDMA_D0_START_ADDR(addr);
+ bfin_write_MDMA_D0_X_COUNT(len);
+ bfin_write_MDMA_D0_X_MODIFY(0);
+ bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_START_ADDR(buf);
+ bfin_write_MDMA_S0_X_COUNT(len);
+ bfin_write_MDMA_S0_X_MODIFY(2);
+ bfin_write_MDMA_S0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_CONFIG(DMAEN | WDSIZE_16);
+ bfin_write_MDMA_D0_CONFIG(WNR | DI_EN | DMAEN | WDSIZE_16);
+
+ while (!(bfin_read_MDMA_D0_IRQ_STATUS() & DMA_DONE));
+
+ bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_CONFIG(0);
+ bfin_write_MDMA_D0_CONFIG(0);
+ local_irq_restore(flags);
+
+}
+EXPORT_SYMBOL(dma_outsw);
+
+void dma_insw(const void __iomem *addr, void *buf, unsigned short len)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ bfin_write_MDMA_D0_START_ADDR(buf);
+ bfin_write_MDMA_D0_X_COUNT(len);
+ bfin_write_MDMA_D0_X_MODIFY(2);
+ bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_START_ADDR(addr);
+ bfin_write_MDMA_S0_X_COUNT(len);
+ bfin_write_MDMA_S0_X_MODIFY(0);
+ bfin_write_MDMA_S0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_CONFIG(DMAEN | WDSIZE_16);
+ bfin_write_MDMA_D0_CONFIG(WNR | DI_EN | DMAEN | WDSIZE_16);
+
+ blackfin_dcache_invalidate_range((unsigned int)buf, (unsigned int)(buf) + len);
+
+ while (!(bfin_read_MDMA_D0_IRQ_STATUS() & DMA_DONE));
+
+ bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_CONFIG(0);
+ bfin_write_MDMA_D0_CONFIG(0);
+ local_irq_restore(flags);
+
+}
+EXPORT_SYMBOL(dma_insw);
+
+void dma_outsl(void __iomem *addr, const void *buf, unsigned short len)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ blackfin_dcache_flush_range((unsigned int)buf,(unsigned int)(buf) + len);
+
+ bfin_write_MDMA_D0_START_ADDR(addr);
+ bfin_write_MDMA_D0_X_COUNT(len);
+ bfin_write_MDMA_D0_X_MODIFY(0);
+ bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_START_ADDR(buf);
+ bfin_write_MDMA_S0_X_COUNT(len);
+ bfin_write_MDMA_S0_X_MODIFY(4);
+ bfin_write_MDMA_S0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_CONFIG(DMAEN | WDSIZE_32);
+ bfin_write_MDMA_D0_CONFIG(WNR | DI_EN | DMAEN | WDSIZE_32);
+
+ while (!(bfin_read_MDMA_D0_IRQ_STATUS() & DMA_DONE));
+
+ bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_CONFIG(0);
+ bfin_write_MDMA_D0_CONFIG(0);
+ local_irq_restore(flags);
+
+}
+EXPORT_SYMBOL(dma_outsl);
+
+void dma_insl(const void __iomem *addr, void *buf, unsigned short len)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ bfin_write_MDMA_D0_START_ADDR(buf);
+ bfin_write_MDMA_D0_X_COUNT(len);
+ bfin_write_MDMA_D0_X_MODIFY(4);
+ bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_START_ADDR(addr);
+ bfin_write_MDMA_S0_X_COUNT(len);
+ bfin_write_MDMA_S0_X_MODIFY(0);
+ bfin_write_MDMA_S0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_CONFIG(DMAEN | WDSIZE_32);
+ bfin_write_MDMA_D0_CONFIG(WNR | DI_EN | DMAEN | WDSIZE_32);
+
+ blackfin_dcache_invalidate_range((unsigned int)buf, (unsigned int)(buf) + len);
+
+ while (!(bfin_read_MDMA_D0_IRQ_STATUS() & DMA_DONE));
+
+ bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+
+ bfin_write_MDMA_S0_CONFIG(0);
+ bfin_write_MDMA_D0_CONFIG(0);
+ local_irq_restore(flags);
+
+}
+EXPORT_SYMBOL(dma_insl);
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index e9f24a9a46ba..3f49fae1cb1f 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -144,7 +144,7 @@ inline int check_gpio(unsigned short gpio)
}
#ifdef BF537_FAMILY
-void port_setup(unsigned short gpio, unsigned short usage)
+static void port_setup(unsigned short gpio, unsigned short usage)
{
if (usage == GPIO_USAGE) {
if (*port_fer[gpio_bank(gpio)] & gpio_bit(gpio))
@@ -160,7 +160,7 @@ void port_setup(unsigned short gpio, unsigned short usage)
#endif
-void default_gpio(unsigned short gpio)
+static void default_gpio(unsigned short gpio)
{
unsigned short bank,bitmask;
@@ -177,8 +177,7 @@ void default_gpio(unsigned short gpio)
gpio_bankb[bank]->edge &= ~bitmask;
}
-
-int __init bfin_gpio_init(void)
+static int __init bfin_gpio_init(void)
{
int i;
@@ -189,9 +188,9 @@ int __init bfin_gpio_init(void)
#if defined(BF537_FAMILY) && (defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE))
# if defined(CONFIG_BFIN_MAC_RMII)
- reserved_map[PORT_H] = 0xC373;
+ reserved_map[gpio_bank(PORT_H)] = 0xC373;
# else
- reserved_map[PORT_H] = 0xFFFF;
+ reserved_map[gpio_bank(PORT_H)] = 0xFFFF;
# endif
#endif
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 342bb8dd56ac..02dc74301920 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -33,7 +33,6 @@
#include <linux/seq_file.h>
#include <linux/cpu.h>
#include <linux/module.h>
-#include <linux/console.h>
#include <linux/tty.h>
#include <linux/ext2_fs.h>
@@ -44,6 +43,8 @@
#include <asm/blackfin.h>
#include <asm/cplbinit.h>
+u16 _bfin_swrst;
+
unsigned long memory_start, memory_end, physical_mem_end;
unsigned long reserved_mem_dcache_on;
unsigned long reserved_mem_icache_on;
@@ -175,6 +176,9 @@ void __init setup_arch(char **cmdline_p)
unsigned long mtd_phys = 0;
#endif
+#ifdef CONFIG_DUMMY_CONSOLE
+ conswitchp = &dummy_con;
+#endif
cclk = get_cclk();
sclk = get_sclk();
@@ -379,37 +383,27 @@ void __init setup_arch(char **cmdline_p)
if (l1_length > L1_DATA_A_LENGTH)
panic("L1 memory overflow\n");
- bf53x_cache_init();
-
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
-# if defined(CONFIG_BFIN_SHARED_FLASH_ENET) && defined(CONFIG_BFIN533_STAMP)
- /* setup BF533_STAMP CPLD to route AMS3 to Ethernet MAC */
- bfin_write_FIO_DIR(bfin_read_FIO_DIR() | (1 << CONFIG_ENET_FLASH_PIN));
- bfin_write_FIO_FLAG_S(1 << CONFIG_ENET_FLASH_PIN);
- SSYNC();
-# endif
-# if defined (CONFIG_BFIN561_EZKIT)
- bfin_write_FIO0_DIR(bfin_read_FIO0_DIR() | (1 << 12));
- SSYNC();
-# endif /* defined (CONFIG_BFIN561_EZKIT) */
+#ifdef BF561_FAMILY
+ _bfin_swrst = bfin_read_SICA_SWRST();
+#else
+ _bfin_swrst = bfin_read_SWRST();
#endif
+ bf53x_cache_init();
+
printk(KERN_INFO "Hardware Trace Enabled\n");
bfin_write_TBUFCTL(0x03);
}
-#if defined(CONFIG_BF561)
-static struct cpu cpu[2];
-#else
-static struct cpu cpu[1];
-#endif
static int __init topology_init(void)
{
#if defined (CONFIG_BF561)
+ static struct cpu cpu[2];
register_cpu(&cpu[0], 0);
register_cpu(&cpu[1], 1);
return 0;
#else
+ static struct cpu cpu[1];
return register_cpu(cpu, 0);
#endif
}
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 9556b73de808..9932edee8cb4 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -59,9 +59,10 @@ static int printk_address(unsigned long address)
struct vm_list_struct *vml;
struct task_struct *p;
struct mm_struct *mm;
+ unsigned long offset;
#ifdef CONFIG_KALLSYMS
- unsigned long offset = 0, symsize;
+ unsigned long symsize;
const char *symname;
char *modname;
char *delim = ":";
@@ -106,12 +107,19 @@ static int printk_address(unsigned long address)
sizeof(_tmpbuf));
}
+ /* FLAT does not have its text aligned to the start of
+ * the map while FDPIC ELF does ...
+ */
+ if (current->mm &&
+ (address > current->mm->start_code) &&
+ (address < current->mm->end_code))
+ offset = address - current->mm->start_code;
+ else
+ offset = (address - vma->vm_start) + (vma->vm_pgoff << PAGE_SHIFT);
+
write_unlock_irq(&tasklist_lock);
return printk("<0x%p> [ %s + 0x%lx ]",
- (void*)address, name,
- (unsigned long)
- ((address - vma->vm_start) +
- (vma->vm_pgoff << PAGE_SHIFT)));
+ (void*)address, name, offset);
}
vml = vml->next;
diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S
index 6ae9ebbd8e58..86fe67995802 100644
--- a/arch/blackfin/kernel/vmlinux.lds.S
+++ b/arch/blackfin/kernel/vmlinux.lds.S
@@ -54,7 +54,7 @@ SECTIONS
{
_text = .;
__stext = .;
- *(.text)
+ TEXT_TEXT
SCHED_TEXT
*(.text.lock)
. = ALIGN(16);
@@ -200,7 +200,7 @@ SECTIONS
__sdata = .;
. = ALIGN(0x2000);
*(.data.init_task)
- *(.data)
+ DATA_DATA
. = ALIGN(32);
*(.data.cacheline_aligned)
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 18:12:02 +0000