summaryrefslogtreecommitdiffstats
path: root/arch/blackfin/kernel
diff options
context:
space:
mode:
Diffstat (limited to 'arch/blackfin/kernel')
-rw-r--r--arch/blackfin/kernel/bfin_dma.c143
-rw-r--r--arch/blackfin/kernel/bfin_gpio.c27
-rw-r--r--arch/blackfin/kernel/debug-mmrs.c9
-rw-r--r--arch/blackfin/kernel/process.c8
-rw-r--r--arch/blackfin/kernel/reboot.c6
-rw-r--r--arch/blackfin/kernel/setup.c159
-rw-r--r--arch/blackfin/kernel/shadow_console.c6
7 files changed, 282 insertions, 76 deletions
diff --git a/arch/blackfin/kernel/bfin_dma.c b/arch/blackfin/kernel/bfin_dma.c
index 40c2ed61258..b612324fb8d 100644
--- a/arch/blackfin/kernel/bfin_dma.c
+++ b/arch/blackfin/kernel/bfin_dma.c
@@ -45,9 +45,15 @@ static int __init blackfin_dma_init(void)
atomic_set(&dma_ch[i].chan_status, 0);
dma_ch[i].regs = dma_io_base_addr[i];
}
+#ifdef CH_MEM_STREAM3_SRC
+ /* Mark MEMDMA Channel 3 as requested since we're using it internally */
+ request_dma(CH_MEM_STREAM3_DEST, "Blackfin dma_memcpy");
+ request_dma(CH_MEM_STREAM3_SRC, "Blackfin dma_memcpy");
+#else
/* Mark MEMDMA Channel 0 as requested since we're using it internally */
request_dma(CH_MEM_STREAM0_DEST, "Blackfin dma_memcpy");
request_dma(CH_MEM_STREAM0_SRC, "Blackfin dma_memcpy");
+#endif
#if defined(CONFIG_DEB_DMA_URGENT)
bfin_write_EBIU_DDRQUE(bfin_read_EBIU_DDRQUE()
@@ -204,6 +210,7 @@ EXPORT_SYMBOL(free_dma);
# ifndef MAX_DMA_SUSPEND_CHANNELS
# define MAX_DMA_SUSPEND_CHANNELS MAX_DMA_CHANNELS
# endif
+# ifndef CONFIG_BF60x
int blackfin_dma_suspend(void)
{
int i;
@@ -213,7 +220,6 @@ int blackfin_dma_suspend(void)
printk(KERN_ERR "DMA Channel %d failed to suspend\n", i);
return -EBUSY;
}
-
if (i < MAX_DMA_SUSPEND_CHANNELS)
dma_ch[i].saved_peripheral_map = dma_ch[i].regs->peripheral_map;
}
@@ -230,7 +236,6 @@ void blackfin_dma_resume(void)
for (i = 0; i < MAX_DMA_CHANNELS; ++i) {
dma_ch[i].regs->cfg = 0;
-
if (i < MAX_DMA_SUSPEND_CHANNELS)
dma_ch[i].regs->peripheral_map = dma_ch[i].saved_peripheral_map;
}
@@ -238,6 +243,16 @@ void blackfin_dma_resume(void)
bfin_write_DMAC_TC_PER(0x0111);
#endif
}
+# else
+int blackfin_dma_suspend(void)
+{
+ return 0;
+}
+
+void blackfin_dma_resume(void)
+{
+}
+#endif
#endif
/**
@@ -279,10 +294,10 @@ void __init early_dma_memcpy(void *pdst, const void *psrc, size_t size)
src_ch = (struct dma_register *)MDMA_S0_NEXT_DESC_PTR;
}
- if (!bfin_read16(&src_ch->cfg))
+ if (!DMA_MMR_READ(&src_ch->cfg))
break;
- else if (bfin_read16(&dst_ch->irq_status) & DMA_DONE) {
- bfin_write16(&src_ch->cfg, 0);
+ else if (DMA_MMR_READ(&dst_ch->irq_status) & DMA_DONE) {
+ DMA_MMR_WRITE(&src_ch->cfg, 0);
break;
}
}
@@ -295,22 +310,31 @@ void __init early_dma_memcpy(void *pdst, const void *psrc, size_t size)
/* Destination */
bfin_write32(&dst_ch->start_addr, dst);
- bfin_write16(&dst_ch->x_count, size >> 2);
- bfin_write16(&dst_ch->x_modify, 1 << 2);
- bfin_write16(&dst_ch->irq_status, DMA_DONE | DMA_ERR);
+ DMA_MMR_WRITE(&dst_ch->x_count, size >> 2);
+ DMA_MMR_WRITE(&dst_ch->x_modify, 1 << 2);
+ DMA_MMR_WRITE(&dst_ch->irq_status, DMA_DONE | DMA_ERR);
/* Source */
bfin_write32(&src_ch->start_addr, src);
- bfin_write16(&src_ch->x_count, size >> 2);
- bfin_write16(&src_ch->x_modify, 1 << 2);
- bfin_write16(&src_ch->irq_status, DMA_DONE | DMA_ERR);
+ DMA_MMR_WRITE(&src_ch->x_count, size >> 2);
+ DMA_MMR_WRITE(&src_ch->x_modify, 1 << 2);
+ DMA_MMR_WRITE(&src_ch->irq_status, DMA_DONE | DMA_ERR);
/* Enable */
- bfin_write16(&src_ch->cfg, DMAEN | WDSIZE_32);
- bfin_write16(&dst_ch->cfg, WNR | DI_EN | DMAEN | WDSIZE_32);
+ DMA_MMR_WRITE(&src_ch->cfg, DMAEN | WDSIZE_32);
+ DMA_MMR_WRITE(&dst_ch->cfg, WNR | DI_EN_X | DMAEN | WDSIZE_32);
/* Since we are atomic now, don't use the workaround ssync */
__builtin_bfin_ssync();
+
+#ifdef CONFIG_BF60x
+ /* Work around a possible MDMA anomaly. Running 2 MDMA channels to
+ * transfer DDR data to L1 SRAM may corrupt data.
+ * Should be reverted after this issue is root caused.
+ */
+ while (!(DMA_MMR_READ(&dst_ch->irq_status) & DMA_DONE))
+ continue;
+#endif
}
void __init early_dma_memcpy_done(void)
@@ -336,6 +360,42 @@ void __init early_dma_memcpy_done(void)
__builtin_bfin_ssync();
}
+#ifdef CH_MEM_STREAM3_SRC
+#define bfin_read_MDMA_S_CONFIG bfin_read_MDMA_S3_CONFIG
+#define bfin_write_MDMA_S_CONFIG bfin_write_MDMA_S3_CONFIG
+#define bfin_write_MDMA_S_START_ADDR bfin_write_MDMA_S3_START_ADDR
+#define bfin_write_MDMA_S_IRQ_STATUS bfin_write_MDMA_S3_IRQ_STATUS
+#define bfin_write_MDMA_S_X_COUNT bfin_write_MDMA_S3_X_COUNT
+#define bfin_write_MDMA_S_X_MODIFY bfin_write_MDMA_S3_X_MODIFY
+#define bfin_write_MDMA_S_Y_COUNT bfin_write_MDMA_S3_Y_COUNT
+#define bfin_write_MDMA_S_Y_MODIFY bfin_write_MDMA_S3_Y_MODIFY
+#define bfin_write_MDMA_D_CONFIG bfin_write_MDMA_D3_CONFIG
+#define bfin_write_MDMA_D_START_ADDR bfin_write_MDMA_D3_START_ADDR
+#define bfin_read_MDMA_D_IRQ_STATUS bfin_read_MDMA_D3_IRQ_STATUS
+#define bfin_write_MDMA_D_IRQ_STATUS bfin_write_MDMA_D3_IRQ_STATUS
+#define bfin_write_MDMA_D_X_COUNT bfin_write_MDMA_D3_X_COUNT
+#define bfin_write_MDMA_D_X_MODIFY bfin_write_MDMA_D3_X_MODIFY
+#define bfin_write_MDMA_D_Y_COUNT bfin_write_MDMA_D3_Y_COUNT
+#define bfin_write_MDMA_D_Y_MODIFY bfin_write_MDMA_D3_Y_MODIFY
+#else
+#define bfin_read_MDMA_S_CONFIG bfin_read_MDMA_S0_CONFIG
+#define bfin_write_MDMA_S_CONFIG bfin_write_MDMA_S0_CONFIG
+#define bfin_write_MDMA_S_START_ADDR bfin_write_MDMA_S0_START_ADDR
+#define bfin_write_MDMA_S_IRQ_STATUS bfin_write_MDMA_S0_IRQ_STATUS
+#define bfin_write_MDMA_S_X_COUNT bfin_write_MDMA_S0_X_COUNT
+#define bfin_write_MDMA_S_X_MODIFY bfin_write_MDMA_S0_X_MODIFY
+#define bfin_write_MDMA_S_Y_COUNT bfin_write_MDMA_S0_Y_COUNT
+#define bfin_write_MDMA_S_Y_MODIFY bfin_write_MDMA_S0_Y_MODIFY
+#define bfin_write_MDMA_D_CONFIG bfin_write_MDMA_D0_CONFIG
+#define bfin_write_MDMA_D_START_ADDR bfin_write_MDMA_D0_START_ADDR
+#define bfin_read_MDMA_D_IRQ_STATUS bfin_read_MDMA_D0_IRQ_STATUS
+#define bfin_write_MDMA_D_IRQ_STATUS bfin_write_MDMA_D0_IRQ_STATUS
+#define bfin_write_MDMA_D_X_COUNT bfin_write_MDMA_D0_X_COUNT
+#define bfin_write_MDMA_D_X_MODIFY bfin_write_MDMA_D0_X_MODIFY
+#define bfin_write_MDMA_D_Y_COUNT bfin_write_MDMA_D0_Y_COUNT
+#define bfin_write_MDMA_D_Y_MODIFY bfin_write_MDMA_D0_Y_MODIFY
+#endif
+
/**
* __dma_memcpy - program the MDMA registers
*
@@ -358,8 +418,8 @@ static void __dma_memcpy(u32 daddr, s16 dmod, u32 saddr, s16 smod, size_t cnt, u
*/
__builtin_bfin_ssync();
- if (bfin_read_MDMA_S0_CONFIG())
- while (!(bfin_read_MDMA_D0_IRQ_STATUS() & DMA_DONE))
+ if (bfin_read_MDMA_S_CONFIG())
+ while (!(bfin_read_MDMA_D_IRQ_STATUS() & DMA_DONE))
continue;
if (conf & DMA2D) {
@@ -374,39 +434,42 @@ static void __dma_memcpy(u32 daddr, s16 dmod, u32 saddr, s16 smod, size_t cnt, u
u32 shift = abs(dmod) >> 1;
size_t ycnt = cnt >> (16 - shift);
cnt = 1 << (16 - shift);
- bfin_write_MDMA_D0_Y_COUNT(ycnt);
- bfin_write_MDMA_S0_Y_COUNT(ycnt);
- bfin_write_MDMA_D0_Y_MODIFY(dmod);
- bfin_write_MDMA_S0_Y_MODIFY(smod);
+ bfin_write_MDMA_D_Y_COUNT(ycnt);
+ bfin_write_MDMA_S_Y_COUNT(ycnt);
+ bfin_write_MDMA_D_Y_MODIFY(dmod);
+ bfin_write_MDMA_S_Y_MODIFY(smod);
}
- bfin_write_MDMA_D0_START_ADDR(daddr);
- bfin_write_MDMA_D0_X_COUNT(cnt);
- bfin_write_MDMA_D0_X_MODIFY(dmod);
- bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+ bfin_write_MDMA_D_START_ADDR(daddr);
+ bfin_write_MDMA_D_X_COUNT(cnt);
+ bfin_write_MDMA_D_X_MODIFY(dmod);
+ bfin_write_MDMA_D_IRQ_STATUS(DMA_DONE | DMA_ERR);
- bfin_write_MDMA_S0_START_ADDR(saddr);
- bfin_write_MDMA_S0_X_COUNT(cnt);
- bfin_write_MDMA_S0_X_MODIFY(smod);
- bfin_write_MDMA_S0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+ bfin_write_MDMA_S_START_ADDR(saddr);
+ bfin_write_MDMA_S_X_COUNT(cnt);
+ bfin_write_MDMA_S_X_MODIFY(smod);
+ bfin_write_MDMA_S_IRQ_STATUS(DMA_DONE | DMA_ERR);
- bfin_write_MDMA_S0_CONFIG(DMAEN | conf);
- bfin_write_MDMA_D0_CONFIG(WNR | DI_EN | DMAEN | conf);
+ bfin_write_MDMA_S_CONFIG(DMAEN | conf);
+ if (conf & DMA2D)
+ bfin_write_MDMA_D_CONFIG(WNR | DI_EN_Y | DMAEN | conf);
+ else
+ bfin_write_MDMA_D_CONFIG(WNR | DI_EN_X | DMAEN | conf);
spin_unlock_irqrestore(&mdma_lock, flags);
SSYNC();
- while (!(bfin_read_MDMA_D0_IRQ_STATUS() & DMA_DONE))
- if (bfin_read_MDMA_S0_CONFIG())
+ while (!(bfin_read_MDMA_D_IRQ_STATUS() & DMA_DONE))
+ if (bfin_read_MDMA_S_CONFIG())
continue;
else
return;
- bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR);
+ bfin_write_MDMA_D_IRQ_STATUS(DMA_DONE | DMA_ERR);
- bfin_write_MDMA_S0_CONFIG(0);
- bfin_write_MDMA_D0_CONFIG(0);
+ bfin_write_MDMA_S_CONFIG(0);
+ bfin_write_MDMA_D_CONFIG(0);
}
/**
@@ -448,8 +511,10 @@ static void *_dma_memcpy(void *pdst, const void *psrc, size_t size)
}
size >>= shift;
+#ifndef DMA_MMR_SIZE_32
if (size > 0x10000)
conf |= DMA2D;
+#endif
__dma_memcpy(dst, mod, src, mod, size, conf);
@@ -488,6 +553,9 @@ EXPORT_SYMBOL(dma_memcpy);
*/
void *dma_memcpy_nocache(void *pdst, const void *psrc, size_t size)
{
+#ifdef DMA_MMR_SIZE_32
+ _dma_memcpy(pdst, psrc, size);
+#else
size_t bulk, rest;
bulk = size & ~0xffff;
@@ -495,6 +563,7 @@ void *dma_memcpy_nocache(void *pdst, const void *psrc, size_t size)
if (bulk)
_dma_memcpy(pdst, psrc, bulk);
_dma_memcpy(pdst + bulk, psrc + bulk, rest);
+#endif
return pdst;
}
EXPORT_SYMBOL(dma_memcpy_nocache);
@@ -514,14 +583,14 @@ void *safe_dma_memcpy(void *dst, const void *src, size_t size)
}
EXPORT_SYMBOL(safe_dma_memcpy);
-static void _dma_out(unsigned long addr, unsigned long buf, unsigned short len,
+static void _dma_out(unsigned long addr, unsigned long buf, unsigned DMA_MMR_SIZE_TYPE len,
u16 size, u16 dma_size)
{
blackfin_dcache_flush_range(buf, buf + len * size);
__dma_memcpy(addr, 0, buf, size, len, dma_size);
}
-static void _dma_in(unsigned long addr, unsigned long buf, unsigned short len,
+static void _dma_in(unsigned long addr, unsigned long buf, unsigned DMA_MMR_SIZE_TYPE len,
u16 size, u16 dma_size)
{
blackfin_dcache_invalidate_range(buf, buf + len * size);
@@ -529,7 +598,7 @@ static void _dma_in(unsigned long addr, unsigned long buf, unsigned short len,
}
#define MAKE_DMA_IO(io, bwl, isize, dmasize, cnst) \
-void dma_##io##s##bwl(unsigned long addr, cnst void *buf, unsigned short len) \
+void dma_##io##s##bwl(unsigned long addr, cnst void *buf, unsigned DMA_MMR_SIZE_TYPE len) \
{ \
_dma_##io(addr, (unsigned long)buf, len, isize, WDSIZE_##dmasize); \
} \
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index 02796b88443..c6e80099812 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -58,7 +58,7 @@ static struct gpio_port_t * const gpio_array[] = {
(struct gpio_port_t *) FIO0_FLAG_D,
(struct gpio_port_t *) FIO1_FLAG_D,
(struct gpio_port_t *) FIO2_FLAG_D,
-#elif defined(CONFIG_BF54x)
+#elif defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
(struct gpio_port_t *)PORTA_FER,
(struct gpio_port_t *)PORTB_FER,
(struct gpio_port_t *)PORTC_FER,
@@ -66,6 +66,7 @@ static struct gpio_port_t * const gpio_array[] = {
(struct gpio_port_t *)PORTE_FER,
(struct gpio_port_t *)PORTF_FER,
(struct gpio_port_t *)PORTG_FER,
+#elif defined(CONFIG_BF54x)
(struct gpio_port_t *)PORTH_FER,
(struct gpio_port_t *)PORTI_FER,
(struct gpio_port_t *)PORTJ_FER,
@@ -210,7 +211,7 @@ static void port_setup(unsigned gpio, unsigned short usage)
else
*port_fer[gpio_bank(gpio)] |= gpio_bit(gpio);
SSYNC();
-#elif defined(CONFIG_BF54x)
+#elif defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
if (usage == GPIO_USAGE)
gpio_array[gpio_bank(gpio)]->port_fer &= ~gpio_bit(gpio);
else
@@ -299,7 +300,7 @@ static void portmux_setup(unsigned short per)
pmux |= (function << offset);
bfin_write_PORT_MUX(pmux);
}
-#elif defined(CONFIG_BF54x)
+#elif defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
inline void portmux_setup(unsigned short per)
{
u16 ident = P_IDENT(per);
@@ -377,7 +378,7 @@ static int portmux_group_check(unsigned short per)
}
#endif
-#ifndef CONFIG_BF54x
+#if !(defined(CONFIG_BF54x) || defined(CONFIG_BF60x))
/***********************************************************
*
* FUNCTIONS: Blackfin General Purpose Ports Access Functions
@@ -680,7 +681,7 @@ void bfin_gpio_pm_hibernate_restore(void)
#endif
-#else /* CONFIG_BF54x */
+#else /* CONFIG_BF54x || CONFIG_BF60x */
#ifdef CONFIG_PM
int bfin_pm_standby_ctrl(unsigned ctrl)
@@ -726,7 +727,7 @@ unsigned short get_gpio_dir(unsigned gpio)
}
EXPORT_SYMBOL(get_gpio_dir);
-#endif /* CONFIG_BF54x */
+#endif /* CONFIG_BF54x || CONFIG_BF60x */
/***********************************************************
*
@@ -783,7 +784,7 @@ int peripheral_request(unsigned short per, const char *label)
* be requested and used by several drivers
*/
-#ifdef CONFIG_BF54x
+#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
if (!((per & P_MAYSHARE) && get_portmux(per) == P_FUNCT2MUX(per))) {
#else
if (!(per & P_MAYSHARE)) {
@@ -937,7 +938,7 @@ int bfin_gpio_request(unsigned gpio, const char *label)
printk(KERN_NOTICE "bfin-gpio: GPIO %d is already reserved as gpio-irq!"
" (Documentation/blackfin/bfin-gpio-notes.txt)\n", gpio);
}
-#ifndef CONFIG_BF54x
+#if !(defined(CONFIG_BF54x) || defined(CONFIG_BF60x))
else { /* Reset POLAR setting when acquiring a gpio for the first time */
set_gpio_polar(gpio, 0);
}
@@ -1110,7 +1111,7 @@ void bfin_gpio_irq_free(unsigned gpio)
static inline void __bfin_gpio_direction_input(unsigned gpio)
{
-#ifdef CONFIG_BF54x
+#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
gpio_array[gpio_bank(gpio)]->dir_clear = gpio_bit(gpio);
#else
gpio_array[gpio_bank(gpio)]->dir &= ~gpio_bit(gpio);
@@ -1138,13 +1139,13 @@ EXPORT_SYMBOL(bfin_gpio_direction_input);
void bfin_gpio_irq_prepare(unsigned gpio)
{
-#ifdef CONFIG_BF54x
+#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
unsigned long flags;
#endif
port_setup(gpio, GPIO_USAGE);
-#ifdef CONFIG_BF54x
+#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
flags = hard_local_irq_save();
__bfin_gpio_direction_input(gpio);
hard_local_irq_restore(flags);
@@ -1173,7 +1174,7 @@ int bfin_gpio_direction_output(unsigned gpio, int value)
gpio_array[gpio_bank(gpio)]->inen &= ~gpio_bit(gpio);
gpio_set_value(gpio, value);
-#ifdef CONFIG_BF54x
+#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
gpio_array[gpio_bank(gpio)]->dir_set = gpio_bit(gpio);
#else
gpio_array[gpio_bank(gpio)]->dir |= gpio_bit(gpio);
@@ -1188,7 +1189,7 @@ EXPORT_SYMBOL(bfin_gpio_direction_output);
int bfin_gpio_get_value(unsigned gpio)
{
-#ifdef CONFIG_BF54x
+#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
return (1 & (gpio_array[gpio_bank(gpio)]->data >> gpio_sub_n(gpio)));
#else
unsigned long flags;
diff --git a/arch/blackfin/kernel/debug-mmrs.c b/arch/blackfin/kernel/debug-mmrs.c
index 92f66482628..01232a13470 100644
--- a/arch/blackfin/kernel/debug-mmrs.c
+++ b/arch/blackfin/kernel/debug-mmrs.c
@@ -105,6 +105,7 @@ DEFINE_SYSREG(seqstat, , );
DEFINE_SYSREG(syscfg, , CSYNC());
#define D_SYSREG(sr) debugfs_create_file(#sr, S_IRUSR|S_IWUSR, parent, NULL, &fops_sysreg_##sr)
+#ifndef CONFIG_BF60x
/*
* CAN
*/
@@ -223,8 +224,10 @@ bfin_debug_mmrs_dma(struct dentry *parent, unsigned long base, int num, char mdm
__DMA(CURR_DESC_PTR, curr_desc_ptr);
__DMA(CURR_ADDR, curr_addr);
__DMA(IRQ_STATUS, irq_status);
+#ifndef CONFIG_BF60x
if (strcmp(pfx, "IMDMA") != 0)
__DMA(PERIPHERAL_MAP, peripheral_map);
+#endif
__DMA(CURR_X_COUNT, curr_x_count);
__DMA(CURR_Y_COUNT, curr_y_count);
}
@@ -568,7 +571,7 @@ bfin_debug_mmrs_uart(struct dentry *parent, unsigned long base, int num)
#endif
}
#define UART(num) bfin_debug_mmrs_uart(parent, UART##num##_DLL, num)
-
+#endif /* CONFIG_BF60x */
/*
* The actual debugfs generation
*/
@@ -740,7 +743,7 @@ static int __init bfin_debug_mmrs_init(void)
D32(WPDACNT0);
D32(WPDACNT1);
D32(WPSTAT);
-
+#ifndef CONFIG_BF60x
/* System MMRs */
#ifdef ATAPI_CONTROL
parent = debugfs_create_dir("atapi", top);
@@ -1873,7 +1876,7 @@ static int __init bfin_debug_mmrs_init(void)
}
#endif /* BF54x */
-
+#endif /* CONFIG_BF60x */
debug_mmrs_dentry = top;
return 0;
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index c0f4fe287eb..2e3994b2016 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -95,7 +95,9 @@ void cpu_idle(void)
idle();
rcu_idle_exit();
tick_nohz_idle_exit();
- schedule_preempt_disabled();
+ preempt_enable_no_resched();
+ schedule();
+ preempt_disable();
}
}
@@ -329,12 +331,16 @@ int in_mem_const(unsigned long addr, unsigned long size,
{
return in_mem_const_off(addr, size, 0, const_addr, const_size);
}
+#ifdef CONFIG_BF60x
+#define ASYNC_ENABLED(bnum, bctlnum) 1
+#else
#define ASYNC_ENABLED(bnum, bctlnum) \
({ \
(bfin_read_EBIU_AMGCTL() & 0xe) < ((bnum + 1) << 1) ? 0 : \
bfin_read_EBIU_AMBCTL##bctlnum() & B##bnum##RDYEN ? 0 : \
1; \
})
+#endif
/*
* We can't read EBIU banks that aren't enabled or we end up hanging
* on the access to the async space. Make sure we validate accesses
diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c
index b0434f89e8d..5272e6eefd9 100644
--- a/arch/blackfin/kernel/reboot.c
+++ b/arch/blackfin/kernel/reboot.c
@@ -22,6 +22,7 @@
__attribute__ ((__l1_text__, __noreturn__))
static void bfin_reset(void)
{
+#ifndef CONFIG_BF60x
if (!ANOMALY_05000353 && !ANOMALY_05000386)
bfrom_SoftReset((void *)(L1_SCRATCH_START + L1_SCRATCH_LENGTH - 20));
@@ -57,7 +58,6 @@ static void bfin_reset(void)
if (__SILICON_REVISION__ < 1 && bfin_revid() < 1)
bfin_read_SWRST();
#endif
-
/* Wait for the SWRST write to complete. Cannot rely on SSYNC
* though as the System state is all reset now.
*/
@@ -72,6 +72,10 @@ static void bfin_reset(void)
while (1)
/* Issue core reset */
asm("raise 1");
+#else
+ while (1)
+ bfin_write_RCU0_CTL(0x1);
+#endif
}
__attribute__((weak))
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 2ad747e909f..c113cfa459a 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -25,6 +25,7 @@
#include <asm/cacheflush.h>
#include <asm/blackfin.h>
#include <asm/cplbinit.h>
+#include <asm/clocks.h>
#include <asm/div64.h>
#include <asm/cpu.h>
#include <asm/fixed_code.h>
@@ -550,7 +551,6 @@ static __init void memory_setup(void)
{
#ifdef CONFIG_MTD_UCLINUX
unsigned long mtd_phys = 0;
- unsigned long n;
#endif
unsigned long max_mem;
@@ -594,9 +594,9 @@ static __init void memory_setup(void)
mtd_size = PAGE_ALIGN(*((unsigned long *)(mtd_phys + 8)));
# if defined(CONFIG_EXT2_FS) || defined(CONFIG_EXT3_FS)
- n = ext2_image_size((void *)(mtd_phys + 0x400));
- if (n)
- mtd_size = PAGE_ALIGN(n * 1024);
+ if (*((unsigned short *)(mtd_phys + 0x438)) == EXT2_SUPER_MAGIC)
+ mtd_size =
+ PAGE_ALIGN(*((unsigned long *)(mtd_phys + 0x404)) << 10);
# endif
# if defined(CONFIG_CRAMFS)
@@ -612,7 +612,8 @@ static __init void memory_setup(void)
/* ROM_FS is XIP, so if we found it, we need to limit memory */
if (memory_end > max_mem) {
- pr_info("Limiting kernel memory to %liMB due to anomaly 05000263\n", max_mem >> 20);
+ pr_info("Limiting kernel memory to %liMB due to anomaly 05000263\n",
+ (max_mem - CONFIG_PHY_RAM_BASE_ADDRESS) >> 20);
memory_end = max_mem;
}
}
@@ -642,7 +643,8 @@ static __init void memory_setup(void)
* doesn't exist, or we don't need to - then dont.
*/
if (memory_end > max_mem) {
- pr_info("Limiting kernel memory to %liMB due to anomaly 05000263\n", max_mem >> 20);
+ pr_info("Limiting kernel memory to %liMB due to anomaly 05000263\n",
+ (max_mem - CONFIG_PHY_RAM_BASE_ADDRESS) >> 20);
memory_end = max_mem;
}
@@ -661,8 +663,8 @@ static __init void memory_setup(void)
init_mm.end_data = (unsigned long)_edata;
init_mm.brk = (unsigned long)0;
- printk(KERN_INFO "Board Memory: %ldMB\n", physical_mem_end >> 20);
- printk(KERN_INFO "Kernel Managed Memory: %ldMB\n", _ramend >> 20);
+ printk(KERN_INFO "Board Memory: %ldMB\n", (physical_mem_end - CONFIG_PHY_RAM_BASE_ADDRESS) >> 20);
+ printk(KERN_INFO "Kernel Managed Memory: %ldMB\n", (_ramend - CONFIG_PHY_RAM_BASE_ADDRESS) >> 20);
printk(KERN_INFO "Memory map:\n"
" fixedcode = 0x%p-0x%p\n"
@@ -705,7 +707,7 @@ void __init find_min_max_pfn(void)
int i;
max_pfn = 0;
- min_low_pfn = memory_end;
+ min_low_pfn = PFN_DOWN(memory_end);
for (i = 0; i < bfin_memmap.nr_map; i++) {
unsigned long start, end;
@@ -748,8 +750,7 @@ static __init void setup_bootmem_allocator(void)
/* pfn of the first usable page frame after kernel image*/
if (min_low_pfn < memory_start >> PAGE_SHIFT)
min_low_pfn = memory_start >> PAGE_SHIFT;
-
- start_pfn = PAGE_OFFSET >> PAGE_SHIFT;
+ start_pfn = CONFIG_PHY_RAM_BASE_ADDRESS >> PAGE_SHIFT;
end_pfn = memory_end >> PAGE_SHIFT;
/*
@@ -794,8 +795,8 @@ static __init void setup_bootmem_allocator(void)
}
/* reserve memory before memory_start, including bootmap */
- reserve_bootmem(PAGE_OFFSET,
- memory_start + bootmap_size + PAGE_SIZE - 1 - PAGE_OFFSET,
+ reserve_bootmem(CONFIG_PHY_RAM_BASE_ADDRESS,
+ memory_start + bootmap_size + PAGE_SIZE - 1 - CONFIG_PHY_RAM_BASE_ADDRESS,
BOOTMEM_DEFAULT);
}
@@ -844,13 +845,40 @@ static inline int __init get_mem_size(void)
break;
}
switch (ddrctl & 0x30000) {
- case DEVWD_4: ret *= 2;
- case DEVWD_8: ret *= 2;
- case DEVWD_16: break;
+ case DEVWD_4:
+ ret *= 2;
+ case DEVWD_8:
+ ret *= 2;
+ case DEVWD_16:
+ break;
}
if ((ddrctl & 0xc000) == 0x4000)
ret *= 2;
return ret;
+#elif defined(CONFIG_BF60x)
+ u32 ddrctl = bfin_read_DDR0_CFG();
+ int ret;
+ switch (ddrctl & 0xf00) {
+ case DEVSZ_64:
+ ret = 64 / 8;
+ break;
+ case DEVSZ_128:
+ ret = 128 / 8;
+ break;
+ case DEVSZ_256:
+ ret = 256 / 8;
+ break;
+ case DEVSZ_512:
+ ret = 512 / 8;
+ break;
+ case DEVSZ_1G:
+ ret = 1024 / 8;
+ break;
+ case DEVSZ_2G:
+ ret = 2048 / 8;
+ break;
+ }
+ return ret;
#endif
BUG();
}
@@ -864,12 +892,14 @@ void __init setup_arch(char **cmdline_p)
{
u32 mmr;
unsigned long sclk, cclk;
+ struct clk *clk;
native_machine_early_platform_add_devices();
enable_shadow_console();
/* Check to make sure we are running on the right processor */
+ mmr = bfin_cpuid();
if (unlikely(CPUID != bfin_cpuid()))
printk(KERN_ERR "ERROR: Not running on ADSP-%s: unknown CPUID 0x%04x Rev 0.%d\n",
CPU, bfin_cpuid(), bfin_revid());
@@ -890,6 +920,10 @@ void __init setup_arch(char **cmdline_p)
memset(&bfin_memmap, 0, sizeof(bfin_memmap));
+#ifdef CONFIG_BF60x
+ /* Should init clock device before parse command early */
+ clk_init();
+#endif
/* If the user does not specify things on the command line, use
* what the bootloader set things up as
*/
@@ -904,6 +938,7 @@ void __init setup_arch(char **cmdline_p)
memory_setup();
+#ifndef CONFIG_BF60x
/* Initialize Async memory banks */
bfin_write_EBIU_AMBCTL0(AMBCTL0VAL);
bfin_write_EBIU_AMBCTL1(AMBCTL1VAL);
@@ -913,6 +948,7 @@ void __init setup_arch(char **cmdline_p)
bfin_write_EBIU_MODE(CONFIG_EBIU_MODEVAL);
bfin_write_EBIU_FCTL(CONFIG_EBIU_FCTLVAL);
#endif
+#endif
#ifdef CONFIG_BFIN_HYSTERESIS_CONTROL
bfin_write_PORTF_HYSTERESIS(HYST_PORTF_0_15);
bfin_write_PORTG_HYSTERESIS(HYST_PORTG_0_15);
@@ -921,8 +957,24 @@ void __init setup_arch(char **cmdline_p)
~HYST_NONEGPIO_MASK) | HYST_NONEGPIO);
#endif
+#ifdef CONFIG_BF60x
+ clk = clk_get(NULL, "CCLK");
+ if (!IS_ERR(clk)) {
+ cclk = clk_get_rate(clk);
+ clk_put(clk);
+ } else
+ cclk = 0;
+
+ clk = clk_get(NULL, "SCLK0");
+ if (!IS_ERR(clk)) {
+ sclk = clk_get_rate(clk);
+ clk_put(clk);
+ } else
+ sclk = 0;
+#else
cclk = get_cclk();
sclk = get_sclk();
+#endif
if ((ANOMALY_05000273 || ANOMALY_05000274) && (cclk >> 1) < sclk)
panic("ANOMALY 05000273 or 05000274: CCLK must be >= 2*SCLK");
@@ -938,7 +990,7 @@ void __init setup_arch(char **cmdline_p)
printk(KERN_INFO "Hardware Trace %s and %sabled\n",
(mmr & 0x1) ? "active" : "off",
(mmr & 0x2) ? "en" : "dis");
-
+#ifndef CONFIG_BF60x
mmr = bfin_read_SYSCR();
printk(KERN_INFO "Boot Mode: %i\n", mmr & 0xF);
@@ -980,7 +1032,7 @@ void __init setup_arch(char **cmdline_p)
printk(KERN_INFO "Recovering from Watchdog event\n");
else if (_bfin_swrst & RESET_SOFTWARE)
printk(KERN_NOTICE "Reset caused by Software reset\n");
-
+#endif
printk(KERN_INFO "Blackfin support (C) 2004-2010 Analog Devices, Inc.\n");
if (bfin_compiled_revid() == 0xffff)
printk(KERN_INFO "Compiled for ADSP-%s Rev any, running on 0.%d\n", CPU, bfin_revid());
@@ -1060,10 +1112,12 @@ subsys_initcall(topology_init);
/* Get the input clock frequency */
static u_long cached_clkin_hz = CONFIG_CLKIN_HZ;
+#ifndef CONFIG_BF60x
static u_long get_clkin_hz(void)
{
return cached_clkin_hz;
}
+#endif
static int __init early_init_clkin_hz(char *buf)
{
cached_clkin_hz = simple_strtoul(buf, NULL, 0);
@@ -1075,6 +1129,7 @@ static int __init early_init_clkin_hz(char *buf)
}
early_param("clkin_hz=", early_init_clkin_hz);
+#ifndef CONFIG_BF60x
/* Get the voltage input multiplier */
static u_long get_vco(void)
{
@@ -1097,10 +1152,23 @@ static u_long get_vco(void)
cached_vco *= msel;
return cached_vco;
}
+#endif
/* Get the Core clock */
u_long get_cclk(void)
{
+#ifdef CONFIG_BF60x
+ struct clk *cclk;
+ u_long cclk_rate;
+
+ cclk = clk_get(NULL, "CCLK");
+ if (IS_ERR(cclk))
+ return 0;
+
+ cclk_rate = clk_get_rate(cclk);
+ clk_put(cclk);
+ return cclk_rate;
+#else
static u_long cached_cclk_pll_div, cached_cclk;
u_long csel, ssel;
@@ -1120,12 +1188,66 @@ u_long get_cclk(void)
else
cached_cclk = get_vco() >> csel;
return cached_cclk;
+#endif
}
EXPORT_SYMBOL(get_cclk);
+#ifdef CONFIG_BF60x
+/* Get the bf60x clock of SCLK0 domain */
+u_long get_sclk0(void)
+{
+ struct clk *sclk0;
+ u_long sclk0_rate;
+
+ sclk0 = clk_get(NULL, "SCLK0");
+ if (IS_ERR(sclk0))
+ return 0;
+
+ sclk0_rate = clk_get_rate(sclk0);
+ clk_put(sclk0);
+ return sclk0_rate;
+}
+EXPORT_SYMBOL(get_sclk0);
+
+/* Get the bf60x clock of SCLK1 domain */
+u_long get_sclk1(void)
+{
+ struct clk *sclk1;
+ u_long sclk1_rate;
+
+ sclk1 = clk_get(NULL, "SCLK1");
+ if (IS_ERR(sclk1))
+ return 0;
+
+ sclk1_rate = clk_get_rate(sclk1);
+ clk_put(sclk1);
+ return sclk1_rate;
+}
+EXPORT_SYMBOL(get_sclk1);
+
+/* Get the bf60x DRAM clock */
+u_long get_dclk(void)
+{
+ struct clk *dclk;
+ u_long dclk_rate;
+
+ dclk = clk_get(NULL, "DCLK");
+ if (IS_ERR(dclk))
+ return 0;
+
+ dclk_rate = clk_get_rate(dclk);
+ clk_put(dclk);
+ return dclk_rate;
+}
+EXPORT_SYMBOL(get_dclk);
+#endif
+
/* Get the System clock */
u_long get_sclk(void)
{
+#ifdef CONFIG_BF60x
+ return get_sclk0();
+#else
static u_long cached_sclk;
u_long ssel;
@@ -1146,6 +1268,7 @@ u_long get_sclk(void)
cached_sclk = get_vco() / ssel;
return cached_sclk;
+#endif
}
EXPORT_SYMBOL(get_sclk);
diff --git a/arch/blackfin/kernel/shadow_console.c b/arch/blackfin/kernel/shadow_console.c
index 557e9fef406..aeb8343eeb0 100644
--- a/arch/blackfin/kernel/shadow_console.c
+++ b/arch/blackfin/kernel/shadow_console.c
@@ -15,9 +15,9 @@
#include <asm/irq_handler.h>
#include <asm/early_printk.h>
-#define SHADOW_CONSOLE_START (0x500)
-#define SHADOW_CONSOLE_END (0x1000)
-#define SHADOW_CONSOLE_MAGIC_LOC (0x4F0)
+#define SHADOW_CONSOLE_START (CONFIG_PHY_RAM_BASE_ADDRESS + 0x500)
+#define SHADOW_CONSOLE_END (CONFIG_PHY_RAM_BASE_ADDRESS + 0x1000)
+#define SHADOW_CONSOLE_MAGIC_LOC (CONFIG_PHY_RAM_BASE_ADDRESS + 0x4F0)
#define SHADOW_CONSOLE_MAGIC (0xDEADBEEF)
static __initdata char *shadow_console_buffer = (char *)SHADOW_CONSOLE_START;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-21 20:04:15 +0000