summaryrefslogtreecommitdiffstats
path: root/arch/blackfin/kernel
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2009-02-09 14:58:11 +0100
committerIngo Molnar <mingo@elte.hu>2009-02-09 14:58:11 +0100
commit249d51b53aea1b7cdb1be65a1a9a0c59d9e06f3e (patch)
tree7fc06930e46ee13d394f5b031166c40206af3189 /arch/blackfin/kernel
parent44581a28e805a31661469c4b466b9cd14b36e7b6 (diff)
parent8e4921515c1a379539607eb443d51c30f4f7f338 (diff)
Merge commit 'v2.6.29-rc4' into core/percpu
Conflicts: arch/x86/mach-voyager/voyager_smp.c arch/x86/mm/fault.c
Diffstat (limited to 'arch/blackfin/kernel')
-rw-r--r--arch/blackfin/kernel/Makefile2
-rw-r--r--arch/blackfin/kernel/bfin_dma_5xx.c7
-rw-r--r--arch/blackfin/kernel/bfin_gpio.c578
-rw-r--r--arch/blackfin/kernel/cplb-mpu/cplbinit.c4
-rw-r--r--arch/blackfin/kernel/cplb-nompu/cplbmgr.c12
-rw-r--r--arch/blackfin/kernel/irqchip.c8
-rw-r--r--arch/blackfin/kernel/reboot.c30
-rw-r--r--arch/blackfin/kernel/setup.c12
-rw-r--r--arch/blackfin/kernel/traps.c39
9 files changed, 300 insertions, 392 deletions
diff --git a/arch/blackfin/kernel/Makefile b/arch/blackfin/kernel/Makefile
index 38a233374f0..4a92a86824b 100644
--- a/arch/blackfin/kernel/Makefile
+++ b/arch/blackfin/kernel/Makefile
@@ -15,6 +15,8 @@ else
obj-y += time.o
endif
+CFLAGS_kgdb_test.o := -mlong-calls -O0
+
obj-$(CONFIG_IPIPE) += ipipe.o
obj-$(CONFIG_IPIPE_TRACE_MCOUNT) += mcount.o
obj-$(CONFIG_BFIN_GPTIMERS) += gptimers.o
diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c
index 07e02c0d1c0..8531693fb48 100644
--- a/arch/blackfin/kernel/bfin_dma_5xx.c
+++ b/arch/blackfin/kernel/bfin_dma_5xx.c
@@ -249,6 +249,13 @@ static void __dma_memcpy(u32 daddr, s16 dmod, u32 saddr, s16 smod, size_t cnt, u
spin_lock_irqsave(&mdma_lock, flags);
+ /* Force a sync in case a previous config reset on this channel
+ * occurred. This is needed so subsequent writes to DMA registers
+ * are not spuriously lost/corrupted. Do it under irq lock and
+ * without the anomaly version (because we are atomic already).
+ */
+ __builtin_bfin_ssync();
+
if (bfin_read_MDMA_S0_CONFIG())
while (!(bfin_read_MDMA_D0_IRQ_STATUS() & DMA_DONE))
continue;
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index 4c14331978f..51dac55c524 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -27,59 +27,6 @@
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
-/*
-* Number BF537/6/4 BF561 BF533/2/1 BF549/8/4/2
-*
-* GPIO_0 PF0 PF0 PF0 PA0...PJ13
-* GPIO_1 PF1 PF1 PF1
-* GPIO_2 PF2 PF2 PF2
-* GPIO_3 PF3 PF3 PF3
-* GPIO_4 PF4 PF4 PF4
-* GPIO_5 PF5 PF5 PF5
-* GPIO_6 PF6 PF6 PF6
-* GPIO_7 PF7 PF7 PF7
-* GPIO_8 PF8 PF8 PF8
-* GPIO_9 PF9 PF9 PF9
-* GPIO_10 PF10 PF10 PF10
-* GPIO_11 PF11 PF11 PF11
-* GPIO_12 PF12 PF12 PF12
-* GPIO_13 PF13 PF13 PF13
-* GPIO_14 PF14 PF14 PF14
-* GPIO_15 PF15 PF15 PF15
-* GPIO_16 PG0 PF16
-* GPIO_17 PG1 PF17
-* GPIO_18 PG2 PF18
-* GPIO_19 PG3 PF19
-* GPIO_20 PG4 PF20
-* GPIO_21 PG5 PF21
-* GPIO_22 PG6 PF22
-* GPIO_23 PG7 PF23
-* GPIO_24 PG8 PF24
-* GPIO_25 PG9 PF25
-* GPIO_26 PG10 PF26
-* GPIO_27 PG11 PF27
-* GPIO_28 PG12 PF28
-* GPIO_29 PG13 PF29
-* GPIO_30 PG14 PF30
-* GPIO_31 PG15 PF31
-* GPIO_32 PH0 PF32
-* GPIO_33 PH1 PF33
-* GPIO_34 PH2 PF34
-* GPIO_35 PH3 PF35
-* GPIO_36 PH4 PF36
-* GPIO_37 PH5 PF37
-* GPIO_38 PH6 PF38
-* GPIO_39 PH7 PF39
-* GPIO_40 PH8 PF40
-* GPIO_41 PH9 PF41
-* GPIO_42 PH10 PF42
-* GPIO_43 PH11 PF43
-* GPIO_44 PH12 PF44
-* GPIO_45 PH13 PF45
-* GPIO_46 PH14 PF46
-* GPIO_47 PH15 PF47
-*/
-
#include <linux/delay.h>
#include <linux/module.h>
#include <linux/err.h>
@@ -119,62 +66,61 @@ enum {
#define AWA_DUMMY_READ(...) do { } while (0)
#endif
+static struct gpio_port_t * const gpio_array[] = {
#if defined(BF533_FAMILY) || defined(BF538_FAMILY)
-static struct gpio_port_t *gpio_bankb[] = {
(struct gpio_port_t *) FIO_FLAG_D,
-};
-#endif
-
-#if defined(BF527_FAMILY) || defined(BF537_FAMILY) || defined(BF518_FAMILY)
-static struct gpio_port_t *gpio_bankb[] = {
+#elif defined(BF527_FAMILY) || defined(BF537_FAMILY) || defined(BF518_FAMILY)
(struct gpio_port_t *) PORTFIO,
(struct gpio_port_t *) PORTGIO,
(struct gpio_port_t *) PORTHIO,
+#elif defined(BF561_FAMILY)
+ (struct gpio_port_t *) FIO0_FLAG_D,
+ (struct gpio_port_t *) FIO1_FLAG_D,
+ (struct gpio_port_t *) FIO2_FLAG_D,
+#elif defined(BF548_FAMILY)
+ (struct gpio_port_t *)PORTA_FER,
+ (struct gpio_port_t *)PORTB_FER,
+ (struct gpio_port_t *)PORTC_FER,
+ (struct gpio_port_t *)PORTD_FER,
+ (struct gpio_port_t *)PORTE_FER,
+ (struct gpio_port_t *)PORTF_FER,
+ (struct gpio_port_t *)PORTG_FER,
+ (struct gpio_port_t *)PORTH_FER,
+ (struct gpio_port_t *)PORTI_FER,
+ (struct gpio_port_t *)PORTJ_FER,
+#else
+# error no gpio arrays defined
+#endif
};
-static unsigned short *port_fer[] = {
+#if defined(BF527_FAMILY) || defined(BF537_FAMILY) || defined(BF518_FAMILY)
+static unsigned short * const port_fer[] = {
(unsigned short *) PORTF_FER,
(unsigned short *) PORTG_FER,
(unsigned short *) PORTH_FER,
};
-#endif
-#if defined(BF527_FAMILY) || defined(BF518_FAMILY)
-static unsigned short *port_mux[] = {
+# if !defined(BF537_FAMILY)
+static unsigned short * const port_mux[] = {
(unsigned short *) PORTF_MUX,
(unsigned short *) PORTG_MUX,
(unsigned short *) PORTH_MUX,
};
static const
-u8 pmux_offset[][16] =
- {{ 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 4, 6, 8, 8, 10, 10 }, /* PORTF */
- { 0, 0, 0, 0, 0, 2, 2, 4, 4, 6, 8, 10, 10, 10, 12, 12 }, /* PORTG */
- { 0, 0, 0, 0, 0, 0, 0, 0, 2, 4, 4, 4, 4, 4, 4, 4 }, /* PORTH */
- };
-#endif
-
-#ifdef BF561_FAMILY
-static struct gpio_port_t *gpio_bankb[] = {
- (struct gpio_port_t *) FIO0_FLAG_D,
- (struct gpio_port_t *) FIO1_FLAG_D,
- (struct gpio_port_t *) FIO2_FLAG_D,
+u8 pmux_offset[][16] = {
+# if defined(BF527_FAMILY)
+ { 0, 0, 0, 0, 0, 0, 0, 0, 2, 2, 4, 6, 8, 8, 10, 10 }, /* PORTF */
+ { 0, 0, 0, 0, 0, 2, 2, 4, 4, 6, 8, 10, 10, 10, 12, 12 }, /* PORTG */
+ { 0, 0, 0, 0, 0, 0, 0, 0, 2, 4, 4, 4, 4, 4, 4, 4 }, /* PORTH */
+# elif defined(BF518_FAMILY)
+ { 0, 2, 2, 2, 2, 2, 2, 4, 6, 6, 6, 8, 8, 8, 8, 10 }, /* PORTF */
+ { 0, 0, 0, 2, 4, 6, 6, 6, 8, 10, 10, 12, 14, 14, 14, 14 }, /* PORTG */
+ { 0, 0, 0, 0, 2, 2, 4, 6, 10, 10, 10, 10, 10, 10, 10, 10 }, /* PORTH */
+# endif
};
-#endif
+# endif
-#ifdef BF548_FAMILY
-static struct gpio_port_t *gpio_array[] = {
- (struct gpio_port_t *)PORTA_FER,
- (struct gpio_port_t *)PORTB_FER,
- (struct gpio_port_t *)PORTC_FER,
- (struct gpio_port_t *)PORTD_FER,
- (struct gpio_port_t *)PORTE_FER,
- (struct gpio_port_t *)PORTF_FER,
- (struct gpio_port_t *)PORTG_FER,
- (struct gpio_port_t *)PORTH_FER,
- (struct gpio_port_t *)PORTI_FER,
- (struct gpio_port_t *)PORTJ_FER,
-};
#endif
static unsigned short reserved_gpio_map[GPIO_BANK_NUM];
@@ -188,35 +134,9 @@ static struct str_ident {
} str_ident[MAX_RESOURCES];
#if defined(CONFIG_PM)
-#if defined(CONFIG_BF54x)
-static struct gpio_port_s gpio_bank_saved[GPIO_BANK_NUM];
-#else
-static unsigned short wakeup_map[GPIO_BANK_NUM];
-static unsigned char wakeup_flags_map[MAX_BLACKFIN_GPIOS];
static struct gpio_port_s gpio_bank_saved[GPIO_BANK_NUM];
-
-#ifdef BF533_FAMILY
-static unsigned int sic_iwr_irqs[] = {IRQ_PROG_INTB};
-#endif
-
-#ifdef BF537_FAMILY
-static unsigned int sic_iwr_irqs[] = {IRQ_PROG_INTB, IRQ_PORTG_INTB, IRQ_MAC_TX};
-#endif
-
-#ifdef BF538_FAMILY
-static unsigned int sic_iwr_irqs[] = {IRQ_PORTF_INTB};
#endif
-#if defined(BF527_FAMILY) || defined(BF518_FAMILY)
-static unsigned int sic_iwr_irqs[] = {IRQ_PORTF_INTB, IRQ_PORTG_INTB, IRQ_PORTH_INTB};
-#endif
-
-#ifdef BF561_FAMILY
-static unsigned int sic_iwr_irqs[] = {IRQ_PROG0_INTB, IRQ_PROG1_INTB, IRQ_PROG2_INTB};
-#endif
-#endif
-#endif /* CONFIG_PM */
-
inline int check_gpio(unsigned gpio)
{
#if defined(BF548_FAMILY)
@@ -330,9 +250,10 @@ static struct {
{.res = P_SPI0_SSEL3, .offset = 0},
};
-static void portmux_setup(unsigned short per, unsigned short function)
+static void portmux_setup(unsigned short per)
{
u16 y, offset, muxreg;
+ u16 function = P_FUNCT2MUX(per);
for (y = 0; y < ARRAY_SIZE(port_mux_lut); y++) {
if (port_mux_lut[y].res == per) {
@@ -353,30 +274,33 @@ static void portmux_setup(unsigned short per, unsigned short function)
}
}
#elif defined(BF548_FAMILY)
-inline void portmux_setup(unsigned short portno, unsigned short function)
+inline void portmux_setup(unsigned short per)
{
u32 pmux;
+ u16 ident = P_IDENT(per);
+ u16 function = P_FUNCT2MUX(per);
- pmux = gpio_array[gpio_bank(portno)]->port_mux;
+ pmux = gpio_array[gpio_bank(ident)]->port_mux;
- pmux &= ~(0x3 << (2 * gpio_sub_n(portno)));
- pmux |= (function & 0x3) << (2 * gpio_sub_n(portno));
+ pmux &= ~(0x3 << (2 * gpio_sub_n(ident)));
+ pmux |= (function & 0x3) << (2 * gpio_sub_n(ident));
- gpio_array[gpio_bank(portno)]->port_mux = pmux;
+ gpio_array[gpio_bank(ident)]->port_mux = pmux;
}
-inline u16 get_portmux(unsigned short portno)
+inline u16 get_portmux(unsigned short per)
{
u32 pmux;
+ u16 ident = P_IDENT(per);
- pmux = gpio_array[gpio_bank(portno)]->port_mux;
+ pmux = gpio_array[gpio_bank(ident)]->port_mux;
- return (pmux >> (2 * gpio_sub_n(portno)) & 0x3);
+ return (pmux >> (2 * gpio_sub_n(ident)) & 0x3);
}
#elif defined(BF527_FAMILY) || defined(BF518_FAMILY)
-inline void portmux_setup(unsigned short portno, unsigned short function)
+inline void portmux_setup(unsigned short per)
{
- u16 pmux, ident = P_IDENT(portno);
+ u16 pmux, ident = P_IDENT(per), function = P_FUNCT2MUX(per);
u8 offset = pmux_offset[gpio_bank(ident)][gpio_sub_n(ident)];
pmux = *port_mux[gpio_bank(ident)];
@@ -424,90 +348,71 @@ void set_gpio_ ## name(unsigned gpio, unsigned short arg) \
unsigned long flags; \
local_irq_save_hw(flags); \
if (arg) \
- gpio_bankb[gpio_bank(gpio)]->name |= gpio_bit(gpio); \
+ gpio_array[gpio_bank(gpio)]->name |= gpio_bit(gpio); \
else \
- gpio_bankb[gpio_bank(gpio)]->name &= ~gpio_bit(gpio); \
+ gpio_array[gpio_bank(gpio)]->name &= ~gpio_bit(gpio); \
AWA_DUMMY_READ(name); \
local_irq_restore_hw(flags); \
} \
EXPORT_SYMBOL(set_gpio_ ## name);
-SET_GPIO(dir)
-SET_GPIO(inen)
-SET_GPIO(polar)
-SET_GPIO(edge)
-SET_GPIO(both)
+SET_GPIO(dir) /* set_gpio_dir() */
+SET_GPIO(inen) /* set_gpio_inen() */
+SET_GPIO(polar) /* set_gpio_polar() */
+SET_GPIO(edge) /* set_gpio_edge() */
+SET_GPIO(both) /* set_gpio_both() */
-#if ANOMALY_05000311 || ANOMALY_05000323
#define SET_GPIO_SC(name) \
void set_gpio_ ## name(unsigned gpio, unsigned short arg) \
{ \
unsigned long flags; \
- local_irq_save_hw(flags); \
- if (arg) \
- gpio_bankb[gpio_bank(gpio)]->name ## _set = gpio_bit(gpio); \
- else \
- gpio_bankb[gpio_bank(gpio)]->name ## _clear = gpio_bit(gpio); \
- AWA_DUMMY_READ(name); \
- local_irq_restore_hw(flags); \
-} \
-EXPORT_SYMBOL(set_gpio_ ## name);
-#else
-#define SET_GPIO_SC(name) \
-void set_gpio_ ## name(unsigned gpio, unsigned short arg) \
-{ \
+ if (ANOMALY_05000311 || ANOMALY_05000323) \
+ local_irq_save_hw(flags); \
if (arg) \
- gpio_bankb[gpio_bank(gpio)]->name ## _set = gpio_bit(gpio); \
+ gpio_array[gpio_bank(gpio)]->name ## _set = gpio_bit(gpio); \
else \
- gpio_bankb[gpio_bank(gpio)]->name ## _clear = gpio_bit(gpio); \
+ gpio_array[gpio_bank(gpio)]->name ## _clear = gpio_bit(gpio); \
+ if (ANOMALY_05000311 || ANOMALY_05000323) { \
+ AWA_DUMMY_READ(name); \
+ local_irq_restore_hw(flags); \
+ } \
} \
EXPORT_SYMBOL(set_gpio_ ## name);
-#endif
SET_GPIO_SC(maska)
SET_GPIO_SC(maskb)
SET_GPIO_SC(data)
-#if ANOMALY_05000311 || ANOMALY_05000323
void set_gpio_toggle(unsigned gpio)
{
unsigned long flags;
- local_irq_save_hw(flags);
- gpio_bankb[gpio_bank(gpio)]->toggle = gpio_bit(gpio);
- AWA_DUMMY_READ(toggle);
- local_irq_restore_hw(flags);
-}
-#else
-void set_gpio_toggle(unsigned gpio)
-{
- gpio_bankb[gpio_bank(gpio)]->toggle = gpio_bit(gpio);
+ if (ANOMALY_05000311 || ANOMALY_05000323)
+ local_irq_save_hw(flags);
+ gpio_array[gpio_bank(gpio)]->toggle = gpio_bit(gpio);
+ if (ANOMALY_05000311 || ANOMALY_05000323) {
+ AWA_DUMMY_READ(toggle);
+ local_irq_restore_hw(flags);
+ }
}
-#endif
EXPORT_SYMBOL(set_gpio_toggle);
/*Set current PORT date (16-bit word)*/
-#if ANOMALY_05000311 || ANOMALY_05000323
#define SET_GPIO_P(name) \
void set_gpiop_ ## name(unsigned gpio, unsigned short arg) \
{ \
unsigned long flags; \
- local_irq_save_hw(flags); \
- gpio_bankb[gpio_bank(gpio)]->name = arg; \
- AWA_DUMMY_READ(name); \
- local_irq_restore_hw(flags); \
+ if (ANOMALY_05000311 || ANOMALY_05000323) \
+ local_irq_save_hw(flags); \
+ gpio_array[gpio_bank(gpio)]->name = arg; \
+ if (ANOMALY_05000311 || ANOMALY_05000323) { \
+ AWA_DUMMY_READ(name); \
+ local_irq_restore_hw(flags); \
+ } \
} \
EXPORT_SYMBOL(set_gpiop_ ## name);
-#else
-#define SET_GPIO_P(name) \
-void set_gpiop_ ## name(unsigned gpio, unsigned short arg) \
-{ \
- gpio_bankb[gpio_bank(gpio)]->name = arg; \
-} \
-EXPORT_SYMBOL(set_gpiop_ ## name);
-#endif
SET_GPIO_P(data)
SET_GPIO_P(dir)
@@ -519,27 +424,21 @@ SET_GPIO_P(maska)
SET_GPIO_P(maskb)
/* Get a specific bit */
-#if ANOMALY_05000311 || ANOMALY_05000323
#define GET_GPIO(name) \
unsigned short get_gpio_ ## name(unsigned gpio) \
{ \
unsigned long flags; \
unsigned short ret; \
- local_irq_save_hw(flags); \
- ret = 0x01 & (gpio_bankb[gpio_bank(gpio)]->name >> gpio_sub_n(gpio)); \
- AWA_DUMMY_READ(name); \
- local_irq_restore_hw(flags); \
+ if (ANOMALY_05000311 || ANOMALY_05000323) \
+ local_irq_save_hw(flags); \
+ ret = 0x01 & (gpio_array[gpio_bank(gpio)]->name >> gpio_sub_n(gpio)); \
+ if (ANOMALY_05000311 || ANOMALY_05000323) { \
+ AWA_DUMMY_READ(name); \
+ local_irq_restore_hw(flags); \
+ } \
return ret; \
} \
EXPORT_SYMBOL(get_gpio_ ## name);
-#else
-#define GET_GPIO(name) \
-unsigned short get_gpio_ ## name(unsigned gpio) \
-{ \
- return (0x01 & (gpio_bankb[gpio_bank(gpio)]->name >> gpio_sub_n(gpio))); \
-} \
-EXPORT_SYMBOL(get_gpio_ ## name);
-#endif
GET_GPIO(data)
GET_GPIO(dir)
@@ -552,27 +451,21 @@ GET_GPIO(maskb)
/*Get current PORT date (16-bit word)*/
-#if ANOMALY_05000311 || ANOMALY_05000323
#define GET_GPIO_P(name) \
unsigned short get_gpiop_ ## name(unsigned gpio) \
{ \
unsigned long flags; \
unsigned short ret; \
- local_irq_save_hw(flags); \
- ret = (gpio_bankb[gpio_bank(gpio)]->name); \
- AWA_DUMMY_READ(name); \
- local_irq_restore_hw(flags); \
+ if (ANOMALY_05000311 || ANOMALY_05000323) \
+ local_irq_save_hw(flags); \
+ ret = (gpio_array[gpio_bank(gpio)]->name); \
+ if (ANOMALY_05000311 || ANOMALY_05000323) { \
+ AWA_DUMMY_READ(name); \
+ local_irq_restore_hw(flags); \
+ } \
return ret; \
} \
EXPORT_SYMBOL(get_gpiop_ ## name);
-#else
-#define GET_GPIO_P(name) \
-unsigned short get_gpiop_ ## name(unsigned gpio) \
-{ \
- return (gpio_bankb[gpio_bank(gpio)]->name);\
-} \
-EXPORT_SYMBOL(get_gpiop_ ## name);
-#endif
GET_GPIO_P(data)
GET_GPIO_P(dir)
@@ -585,6 +478,26 @@ GET_GPIO_P(maskb)
#ifdef CONFIG_PM
+
+static unsigned short wakeup_map[GPIO_BANK_NUM];
+static unsigned char wakeup_flags_map[MAX_BLACKFIN_GPIOS];
+
+static const unsigned int sic_iwr_irqs[] = {
+#if defined(BF533_FAMILY)
+ IRQ_PROG_INTB
+#elif defined(BF537_FAMILY)
+ IRQ_PROG_INTB, IRQ_PORTG_INTB, IRQ_MAC_TX
+#elif defined(BF538_FAMILY)
+ IRQ_PORTF_INTB
+#elif defined(BF527_FAMILY) || defined(BF518_FAMILY)
+ IRQ_PORTF_INTB, IRQ_PORTG_INTB, IRQ_PORTH_INTB
+#elif defined(BF561_FAMILY)
+ IRQ_PROG0_INTB, IRQ_PROG1_INTB, IRQ_PROG2_INTB
+#else
+# error no SIC_IWR defined
+#endif
+};
+
/***********************************************************
*
* FUNCTIONS: Blackfin PM Setup API
@@ -669,18 +582,18 @@ u32 bfin_pm_standby_setup(void)
mask = wakeup_map[gpio_bank(i)];
bank = gpio_bank(i);
- gpio_bank_saved[bank].maskb = gpio_bankb[bank]->maskb;
- gpio_bankb[bank]->maskb = 0;
+ gpio_bank_saved[bank].maskb = gpio_array[bank]->maskb;
+ gpio_array[bank]->maskb = 0;
if (mask) {
#if defined(BF527_FAMILY) || defined(BF537_FAMILY) || defined(BF518_FAMILY)
gpio_bank_saved[bank].fer = *port_fer[bank];
#endif
- gpio_bank_saved[bank].inen = gpio_bankb[bank]->inen;
- gpio_bank_saved[bank].polar = gpio_bankb[bank]->polar;
- gpio_bank_saved[bank].dir = gpio_bankb[bank]->dir;
- gpio_bank_saved[bank].edge = gpio_bankb[bank]->edge;
- gpio_bank_saved[bank].both = gpio_bankb[bank]->both;
+ gpio_bank_saved[bank].inen = gpio_array[bank]->inen;
+ gpio_bank_saved[bank].polar = gpio_array[bank]->polar;
+ gpio_bank_saved[bank].dir = gpio_array[bank]->dir;
+ gpio_bank_saved[bank].edge = gpio_array[bank]->edge;
+ gpio_bank_saved[bank].both = gpio_array[bank]->both;
gpio_bank_saved[bank].reserved =
reserved_gpio_map[bank];
@@ -700,7 +613,7 @@ u32 bfin_pm_standby_setup(void)
}
bfin_internal_set_wake(sic_iwr_irqs[bank], 1);
- gpio_bankb[bank]->maskb_set = wakeup_map[gpio_bank(i)];
+ gpio_array[bank]->maskb_set = wakeup_map[gpio_bank(i)];
}
}
@@ -721,18 +634,18 @@ void bfin_pm_standby_restore(void)
#if defined(BF527_FAMILY) || defined(BF537_FAMILY) || defined(BF518_FAMILY)
*port_fer[bank] = gpio_bank_saved[bank].fer;
#endif
- gpio_bankb[bank]->inen = gpio_bank_saved[bank].inen;
- gpio_bankb[bank]->dir = gpio_bank_saved[bank].dir;
- gpio_bankb[bank]->polar = gpio_bank_saved[bank].polar;
- gpio_bankb[bank]->edge = gpio_bank_saved[bank].edge;
- gpio_bankb[bank]->both = gpio_bank_saved[bank].both;
+ gpio_array[bank]->inen = gpio_bank_saved[bank].inen;
+ gpio_array[bank]->dir = gpio_bank_saved[bank].dir;
+ gpio_array[bank]->polar = gpio_bank_saved[bank].polar;
+ gpio_array[bank]->edge = gpio_bank_saved[bank].edge;
+ gpio_array[bank]->both = gpio_bank_saved[bank].both;
reserved_gpio_map[bank] =
gpio_bank_saved[bank].reserved;
bfin_internal_set_wake(sic_iwr_irqs[bank], 0);
}
- gpio_bankb[bank]->maskb = gpio_bank_saved[bank].maskb;
+ gpio_array[bank]->maskb = gpio_bank_saved[bank].maskb;
}
AWA_DUMMY_READ(maskb);
}
@@ -745,21 +658,21 @@ void bfin_gpio_pm_hibernate_suspend(void)
bank = gpio_bank(i);
#if defined(BF527_FAMILY) || defined(BF537_FAMILY) || defined(BF518_FAMILY)
- gpio_bank_saved[bank].fer = *port_fer[bank];
+ gpio_bank_saved[bank].fer = *port_fer[bank];
#if defined(BF527_FAMILY) || defined(BF518_FAMILY)
- gpio_bank_saved[bank].mux = *port_mux[bank];
+ gpio_bank_saved[bank].mux = *port_mux[bank];
#else
- if (bank == 0)
- gpio_bank_saved[bank].mux = bfin_read_PORT_MUX();
+ if (bank == 0)
+ gpio_bank_saved[bank].mux = bfin_read_PORT_MUX();
#endif
#endif
- gpio_bank_saved[bank].data = gpio_bankb[bank]->data;
- gpio_bank_saved[bank].inen = gpio_bankb[bank]->inen;
- gpio_bank_saved[bank].polar = gpio_bankb[bank]->polar;
- gpio_bank_saved[bank].dir = gpio_bankb[bank]->dir;
- gpio_bank_saved[bank].edge = gpio_bankb[bank]->edge;
- gpio_bank_saved[bank].both = gpio_bankb[bank]->both;
- gpio_bank_saved[bank].maska = gpio_bankb[bank]->maska;
+ gpio_bank_saved[bank].data = gpio_array[bank]->data;
+ gpio_bank_saved[bank].inen = gpio_array[bank]->inen;
+ gpio_bank_saved[bank].polar = gpio_array[bank]->polar;
+ gpio_bank_saved[bank].dir = gpio_array[bank]->dir;
+ gpio_bank_saved[bank].edge = gpio_array[bank]->edge;
+ gpio_bank_saved[bank].both = gpio_array[bank]->both;
+ gpio_bank_saved[bank].maska = gpio_array[bank]->maska;
}
AWA_DUMMY_READ(maska);
@@ -770,27 +683,27 @@ void bfin_gpio_pm_hibernate_restore(void)
int i, bank;
for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) {
- bank = gpio_bank(i);
+ bank = gpio_bank(i);
#if defined(BF527_FAMILY) || defined(BF537_FAMILY) || defined(BF518_FAMILY)
#if defined(BF527_FAMILY) || defined(BF518_FAMILY)
- *port_mux[bank] = gpio_bank_saved[bank].mux;
+ *port_mux[bank] = gpio_bank_saved[bank].mux;
#else
- if (bank == 0)
- bfin_write_PORT_MUX(gpio_bank_saved[bank].mux);
+ if (bank == 0)
+ bfin_write_PORT_MUX(gpio_bank_saved[bank].mux);
#endif
- *port_fer[bank] = gpio_bank_saved[bank].fer;
+ *port_fer[bank] = gpio_bank_saved[bank].fer;
#endif
- gpio_bankb[bank]->inen = gpio_bank_saved[bank].inen;
- gpio_bankb[bank]->dir = gpio_bank_saved[bank].dir;
- gpio_bankb[bank]->polar = gpio_bank_saved[bank].polar;
- gpio_bankb[bank]->edge = gpio_bank_saved[bank].edge;
- gpio_bankb[bank]->both = gpio_bank_saved[bank].both;
+ gpio_array[bank]->inen = gpio_bank_saved[bank].inen;
+ gpio_array[bank]->dir = gpio_bank_saved[bank].dir;
+ gpio_array[bank]->polar = gpio_bank_saved[bank].polar;
+ gpio_array[bank]->edge = gpio_bank_saved[bank].edge;
+ gpio_array[bank]->both = gpio_bank_saved[bank].both;
- gpio_bankb[bank]->data_set = gpio_bank_saved[bank].data
- | gpio_bank_saved[bank].dir;
+ gpio_array[bank]->data_set = gpio_bank_saved[bank].data
+ | gpio_bank_saved[bank].dir;
- gpio_bankb[bank]->maska = gpio_bank_saved[bank].maska;
+ gpio_array[bank]->maska = gpio_bank_saved[bank].maska;
}
AWA_DUMMY_READ(maska);
}
@@ -817,12 +730,12 @@ void bfin_gpio_pm_hibernate_suspend(void)
for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) {
bank = gpio_bank(i);
- gpio_bank_saved[bank].fer = gpio_array[bank]->port_fer;
- gpio_bank_saved[bank].mux = gpio_array[bank]->port_mux;
- gpio_bank_saved[bank].data = gpio_array[bank]->port_data;
- gpio_bank_saved[bank].data = gpio_array[bank]->port_data;
- gpio_bank_saved[bank].inen = gpio_array[bank]->port_inen;
- gpio_bank_saved[bank].dir = gpio_array[bank]->port_dir_set;
+ gpio_bank_saved[bank].fer = gpio_array[bank]->port_fer;
+ gpio_bank_saved[bank].mux = gpio_array[bank]->port_mux;
+ gpio_bank_saved[bank].data = gpio_array[bank]->data;
+ gpio_bank_saved[bank].data = gpio_array[bank]->data;
+ gpio_bank_saved[bank].inen = gpio_array[bank]->inen;
+ gpio_bank_saved[bank].dir = gpio_array[bank]->dir_set;
}
}
@@ -831,21 +744,21 @@ void bfin_gpio_pm_hibernate_restore(void)
int i, bank;
for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) {
- bank = gpio_bank(i);
-
- gpio_array[bank]->port_mux = gpio_bank_saved[bank].mux;
- gpio_array[bank]->port_fer = gpio_bank_saved[bank].fer;
- gpio_array[bank]->port_inen = gpio_bank_saved[bank].inen;
- gpio_array[bank]->port_dir_set = gpio_bank_saved[bank].dir;
- gpio_array[bank]->port_set = gpio_bank_saved[bank].data
- | gpio_bank_saved[bank].dir;
+ bank = gpio_bank(i);
+
+ gpio_array[bank]->port_mux = gpio_bank_saved[bank].mux;
+ gpio_array[bank]->port_fer = gpio_bank_saved[bank].fer;
+ gpio_array[bank]->inen = gpio_bank_saved[bank].inen;
+ gpio_array[bank]->dir_set = gpio_bank_saved[bank].dir;
+ gpio_array[bank]->data_set = gpio_bank_saved[bank].data
+ | gpio_bank_saved[bank].dir;
}
}
#endif
unsigned short get_gpio_dir(unsigned gpio)
{
- return (0x01 & (gpio_array[gpio_bank(gpio)]->port_dir_clear >> gpio_sub_n(gpio)));
+ return (0x01 & (gpio_array[gpio_bank(gpio)]->dir_clear >> gpio_sub_n(gpio)));
}
EXPORT_SYMBOL(get_gpio_dir);
@@ -905,9 +818,7 @@ int peripheral_request(unsigned short per, const char *label)
*/
#ifdef BF548_FAMILY
- u16 funct = get_portmux(ident);
-
- if (!((per & P_MAYSHARE) && (funct == P_FUNCT2MUX(per)))) {
+ if (!((per & P_MAYSHARE) && get_portmux(per) == P_FUNCT2MUX(per))) {
#else
if (!(per & P_MAYSHARE)) {
#endif
@@ -931,11 +842,7 @@ int peripheral_request(unsigned short per, const char *label)
anyway:
reserved_peri_map[gpio_bank(ident)] |= gpio_bit(ident);
-#ifdef BF548_FAMILY
- portmux_setup(ident, P_FUNCT2MUX(per));
-#else
- portmux_setup(per, P_FUNCT2MUX(per));
-#endif
+ portmux_setup(per);
port_setup(ident, PERIPHERAL_USAGE);
local_irq_restore_hw(flags);
@@ -977,9 +884,6 @@ void peripheral_free(unsigned short per)
if (!(per & P_DEFINED))
return;
- if (check_gpio(ident) < 0)
- return;
-
local_irq_save_hw(flags);
if (unlikely(!(reserved_peri_map[gpio_bank(ident)] & gpio_bit(ident)))) {
@@ -1056,9 +960,15 @@ int bfin_gpio_request(unsigned gpio, const char *label)
local_irq_restore_hw(flags);
return -EBUSY;
}
- if (unlikely(reserved_gpio_irq_map[gpio_bank(gpio)] & gpio_bit(gpio)))
+ if (unlikely(reserved_gpio_irq_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
printk(KERN_NOTICE "bfin-gpio: GPIO %d is already reserved as gpio-irq!"
" (Documentation/blackfin/bfin-gpio-notes.txt)\n", gpio);
+ }
+#ifndef BF548_FAMILY
+ else { /* Reset POLAR setting when acquiring a gpio for the first time */
+ set_gpio_polar(gpio, 0);
+ }
+#endif
reserved_gpio_map[gpio_bank(gpio)] |= gpio_bit(gpio);
set_label(gpio, label);
@@ -1078,6 +988,8 @@ void bfin_gpio_free(unsigned gpio)
if (check_gpio(gpio) < 0)
return;
+ might_sleep();
+
local_irq_save_hw(flags);
if (unlikely(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)))) {
@@ -1158,8 +1070,16 @@ void bfin_gpio_irq_free(unsigned gpio)
local_irq_restore_hw(flags);
}
-
+static inline void __bfin_gpio_direction_input(unsigned gpio)
+{
#ifdef BF548_FAMILY
+ gpio_array[gpio_bank(gpio)]->dir_clear = gpio_bit(gpio);
+#else
+ gpio_array[gpio_bank(gpio)]->dir &= ~gpio_bit(gpio);
+#endif
+ gpio_array[gpio_bank(gpio)]->inen |= gpio_bit(gpio);
+}
+
int bfin_gpio_direction_input(unsigned gpio)
{
unsigned long flags;
@@ -1170,125 +1090,85 @@ int bfin_gpio_direction_input(unsigned gpio)
}
local_irq_save_hw(flags);
- gpio_array[gpio_bank(gpio)]->port_dir_clear = gpio_bit(gpio);
- gpio_array[gpio_bank(gpio)]->port_inen |= gpio_bit(gpio);
+ __bfin_gpio_direction_input(gpio);
+ AWA_DUMMY_READ(inen);
local_irq_restore_hw(flags);
return 0;
}
EXPORT_SYMBOL(bfin_gpio_direction_input);
-int bfin_gpio_direction_output(unsigned gpio, int value)
+void bfin_gpio_irq_prepare(unsigned gpio)
{
+#ifdef BF548_FAMILY
unsigned long flags;
+#endif
- if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
- gpio_error(gpio);
- return -EINVAL;
- }
+ port_setup(gpio, GPIO_USAGE);
+#ifdef BF548_FAMILY
local_irq_save_hw(flags);
- gpio_array[gpio_bank(gpio)]->port_inen &= ~gpio_bit(gpio);
- gpio_set_value(gpio, value);
- gpio_array[gpio_bank(gpio)]->port_dir_set = gpio_bit(gpio);
+ __bfin_gpio_direction_input(gpio);
local_irq_restore_hw(flags);
-
- return 0;
+#endif
}
-EXPORT_SYMBOL(bfin_gpio_direction_output);
void bfin_gpio_set_value(unsigned gpio, int arg)
{
if (arg)
- gpio_array[gpio_bank(gpio)]->port_set = gpio_bit(gpio);
+ gpio_array[gpio_bank(gpio)]->data_set = gpio_bit(gpio);
else
- gpio_array[gpio_bank(gpio)]->port_clear = gpio_bit(gpio);
+ gpio_array[gpio_bank(gpio)]->data_clear = gpio_bit(gpio);
}
EXPORT_SYMBOL(bfin_gpio_set_value);
-int bfin_gpio_get_value(unsigned gpio)
-{
- return (1 & (gpio_array[gpio_bank(gpio)]->port_data >> gpio_sub_n(gpio)));
-}
-EXPORT_SYMBOL(bfin_gpio_get_value);
-
-void bfin_gpio_irq_prepare(unsigned gpio)
+int bfin_gpio_direction_output(unsigned gpio, int value)
{
unsigned long flags;
- port_setup(gpio, GPIO_USAGE);
+ if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
+ gpio_error(gpio);
+ return -EINVAL;
+ }
local_irq_save_hw(flags);
- gpio_array[gpio_bank(gpio)]->port_dir_clear = gpio_bit(gpio);
- gpio_array[gpio_bank(gpio)]->port_inen |= gpio_bit(gpio);
- local_irq_restore_hw(flags);
-}
+ gpio_array[gpio_bank(gpio)]->inen &= ~gpio_bit(gpio);
+ gpio_set_value(gpio, value);
+#ifdef BF548_FAMILY
+ gpio_array[gpio_bank(gpio)]->dir_set = gpio_bit(gpio);
#else
+ gpio_array[gpio_bank(gpio)]->dir |= gpio_bit(gpio);
+#endif
+
+ AWA_DUMMY_READ(dir);
+ local_irq_restore_hw(flags);
+
+ return 0;
+}
+EXPORT_SYMBOL(bfin_gpio_direction_output);
int bfin_gpio_get_value(unsigned gpio)
{
+#ifdef BF548_FAMILY
+ return (1 & (gpio_array[gpio_bank(gpio)]->data >> gpio_sub_n(gpio)));
+#else
unsigned long flags;
- int ret;
if (unlikely(get_gpio_edge(gpio))) {
+ int ret;
local_irq_save_hw(flags);
set_gpio_edge(gpio, 0);
ret = get_gpio_data(gpio);
set_gpio_edge(gpio, 1);
local_irq_restore_hw(flags);
-
return ret;
} else
return get_gpio_data(gpio);
+#endif
}
EXPORT_SYMBOL(bfin_gpio_get_value);
-
-int bfin_gpio_direction_input(unsigned gpio)
-{
- unsigned long flags;
-
- if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
- gpio_error(gpio);
- return -EINVAL;
- }
-
- local_irq_save_hw(flags);
- gpio_bankb[gpio_bank(gpio)]->dir &= ~gpio_bit(gpio);
- gpio_bankb[gpio_bank(gpio)]->inen |= gpio_bit(gpio);
- AWA_DUMMY_READ(inen);
- local_irq_restore_hw(flags);
-
- return 0;
-}
-EXPORT_SYMBOL(bfin_gpio_direction_input);
-
-int bfin_gpio_direction_output(unsigned gpio, int value)
-{
- unsigned long flags;
-
- if (!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {
- gpio_error(gpio);
- return -EINVAL;
- }
-
- local_irq_save_hw(flags);
- gpio_bankb[gpio_bank(gpio)]->inen &= ~gpio_bit(gpio);
-
- if (value)
- gpio_bankb[gpio_bank(gpio)]->data_set = gpio_bit(gpio);
- else
- gpio_bankb[gpio_bank(gpio)]->data_clear = gpio_bit(gpio);
-
- gpio_bankb[gpio_bank(gpio)]->dir |= gpio_bit(gpio);
- AWA_DUMMY_READ(dir);
- local_irq_restore_hw(flags);
-
- return 0;
-}
-EXPORT_SYMBOL(bfin_gpio_direction_output);
-
/* If we are booting from SPI and our board lacks a strong enough pull up,
* the core can reset and execute the bootrom faster than the resistor can
* pull the signal logically high. To work around this (common) error in
@@ -1299,23 +1179,15 @@ EXPORT_SYMBOL(bfin_gpio_direction_output);
* lives here as we need to force all the GPIO states w/out going through
* BUG() checks and such.
*/
-void bfin_gpio_reset_spi0_ssel1(void)
+void bfin_reset_boot_spi_cs(unsigned short pin)
{
- u16 gpio = P_IDENT(P_SPI0_SSEL1);
-
+ unsigned short gpio = P_IDENT(pin);
port_setup(gpio, GPIO_USAGE);
- gpio_bankb[gpio_bank(gpio)]->data_set = gpio_bit(gpio);
+ gpio_array[gpio_bank(gpio)]->data_set = gpio_bit(gpio);
AWA_DUMMY_READ(data_set);
udelay(1);
}
-void bfin_gpio_irq_prepare(unsigned gpio)
-{
- port_setup(gpio, GPIO_USAGE);
-}
-
-#endif /*BF548_FAMILY */
-
#if defined(CONFIG_PROC_FS)
static int gpio_proc_read(char *buf, char **start, off_t offset,
int len, int *unused_i, void *unused_v)
@@ -1369,11 +1241,7 @@ int bfin_gpiolib_get_value(struct gpio_chip *chip, unsigned gpio)
void bfin_gpiolib_set_value(struct gpio_chip *chip, unsigned gpio, int value)
{
-#ifdef BF548_FAMILY
return bfin_gpio_set_value(gpio, value);
-#else
- return set_gpio_data(gpio, value);
-#endif
}
int bfin_gpiolib_gpio_request(struct gpio_chip *chip, unsigned gpio)
diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinit.c b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
index bdb958486e7..3e329a6ce04 100644
--- a/arch/blackfin/kernel/cplb-mpu/cplbinit.c
+++ b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
@@ -63,10 +63,8 @@ void __init generate_cplb_tables_cpu(unsigned int cpu)
dcplb_tbl[cpu][i_d].addr = 0;
dcplb_tbl[cpu][i_d++].data = SDRAM_OOPS | PAGE_SIZE_1KB;
-#if 0
icplb_tbl[cpu][i_i].addr = 0;
- icplb_tbl[cpu][i_i++].data = i_cache | CPLB_USER_RD | PAGE_SIZE_4KB;
-#endif
+ icplb_tbl[cpu][i_i++].data = i_cache | CPLB_USER_RD | PAGE_SIZE_1KB;
/* Cover kernel memory with 4M pages. */
addr = 0;
diff --git a/arch/blackfin/kernel/cplb-nompu/cplbmgr.c b/arch/blackfin/kernel/cplb-nompu/cplbmgr.c
index 376249ab269..8cbb47c7b66 100644
--- a/arch/blackfin/kernel/cplb-nompu/cplbmgr.c
+++ b/arch/blackfin/kernel/cplb-nompu/cplbmgr.c
@@ -163,12 +163,14 @@ MGR_ATTR static int icplb_miss(int cpu)
nr_icplb_supv_miss[cpu]++;
base = 0;
- for (idx = 0; idx < icplb_nr_bounds; idx++) {
+ idx = 0;
+ do {
eaddr = icplb_bounds[idx].eaddr;
if (addr < eaddr)
break;
base = eaddr;
- }
+ } while (++idx < icplb_nr_bounds);
+
if (unlikely(idx == icplb_nr_bounds))
return CPLB_NO_ADDR_MATCH;
@@ -208,12 +210,14 @@ MGR_ATTR static int dcplb_miss(int cpu)
nr_dcplb_supv_miss[cpu]++;
base = 0;
- for (idx = 0; idx < dcplb_nr_bounds; idx++) {
+ idx = 0;
+ do {
eaddr = dcplb_bounds[idx].eaddr;
if (addr < eaddr)
break;
base = eaddr;
- }
+ } while (++idx < dcplb_nr_bounds);
+
if (unlikely(idx == dcplb_nr_bounds))
return CPLB_NO_ADDR_MATCH;
diff --git a/arch/blackfin/kernel/irqchip.c b/arch/blackfin/kernel/irqchip.c
index 5780d6df154..23e9aa08071 100644
--- a/arch/blackfin/kernel/irqchip.c
+++ b/arch/blackfin/kernel/irqchip.c
@@ -35,6 +35,7 @@
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <asm/trace.h>
+#include <asm/pda.h>
static atomic_t irq_err_count;
static spinlock_t irq_controller_lock;
@@ -96,8 +97,13 @@ int show_interrupts(struct seq_file *p, void *v)
seq_putc(p, '\n');
skip:
spin_unlock_irqrestore(&irq_desc[i].lock, flags);
- } else if (i == NR_IRQS)
+ } else if (i == NR_IRQS) {
+ seq_printf(p, "NMI: ");
+ for_each_online_cpu(j)
+ seq_printf(p, "%10u ", cpu_pda[j].__nmi_count);
+ seq_printf(p, " CORE Non Maskable Interrupt\n");
seq_printf(p, "Err: %10u\n", atomic_read(&irq_err_count));
+ }
return 0;
}
diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c
index eeee8cb4336..53d08dee853 100644
--- a/arch/blackfin/kernel/reboot.c
+++ b/arch/blackfin/kernel/reboot.c
@@ -20,8 +20,8 @@
* reset while the Core B bit (on dual core parts) is cleared by
* the core reset.
*/
-__attribute__((l1_text))
-static void _bfin_reset(void)
+__attribute__ ((__l1_text__, __noreturn__))
+static void bfin_reset(void)
{
/* Wait for completion of "system" events such as cache line
* line fills so that we avoid infinite stalls later on as
@@ -30,7 +30,11 @@ static void _bfin_reset(void)
*/
__builtin_bfin_ssync();
- while (1) {
+ /* The bootrom checks to see how it was reset and will
+ * automatically perform a software reset for us when
+ * it starts executing after the core reset.
+ */
+ if (ANOMALY_05000353 || ANOMALY_05000386) {
/* Initiate System software reset. */
bfin_write_SWRST(0x7);
@@ -50,6 +54,11 @@ static void _bfin_reset(void)
/* Clear System software reset */
bfin_write_SWRST(0);
+ /* The BF526 ROM will crash during reset */
+#if defined(__ADSPBF522__) || defined(__ADSPBF524__) || defined(__ADSPBF526__)
+ bfin_read_SWRST();
+#endif
+
/* Wait for the SWRST write to complete. Cannot rely on SSYNC
* though as the System state is all reset now.
*/
@@ -60,22 +69,11 @@ static void _bfin_reset(void)
: "a" (15 * 1)
: "LC1", "LB1", "LT1"
);
+ }
+ while (1)
/* Issue core reset */
asm("raise 1");
- }
-}
-
-static void bfin_reset(void)
-{
- if (ANOMALY_05000353 || ANOMALY_05000386)
- _bfin_reset();
- else
- /* the bootrom checks to see how it was reset and will
- * automatically perform a software reset for us when
- * it starts executing boot
- */
- asm("raise 1;");
}
__attribute__((weak))
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index b2a811347b6..e5c11623080 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -60,7 +60,7 @@ void __initdata *init_retx, *init_saved_retx, *init_saved_seqstat,
#define BFIN_MEMMAP_MAX 128 /* number of entries in bfin_memmap */
#define BFIN_MEMMAP_RAM 1
#define BFIN_MEMMAP_RESERVED 2
-struct bfin_memmap {
+static struct bfin_memmap {
int nr_map;
struct bfin_memmap_entry {
unsigned long long addr; /* start of memory segment */
@@ -824,7 +824,15 @@ void __init setup_arch(char **cmdline_p)
flash_probe();
#endif
+ printk(KERN_INFO "Boot Mode: %i\n", bfin_read_SYSCR() & 0xF);
+
+ /* Newer parts mirror SWRST bits in SYSCR */
+#if defined(CONFIG_BF53x) || defined(CONFIG_BF561) || \
+ defined(CONFIG_BF538) || defined(CONFIG_BF539)
_bfin_swrst = bfin_read_SWRST();
+#else
+ _bfin_swrst = bfin_read_SYSCR();
+#endif
#ifdef CONFIG_DEBUG_DOUBLEFAULT_PRINT
bfin_write_SWRST(_bfin_swrst & ~DOUBLE_FAULT);
@@ -853,7 +861,7 @@ void __init setup_arch(char **cmdline_p)
else if (_bfin_swrst & RESET_SOFTWARE)
printk(KERN_NOTICE "Reset caused by Software reset\n");
- printk(KERN_INFO "Blackfin support (C) 2004-2008 Analog Devices, Inc.\n");
+ printk(KERN_INFO "Blackfin support (C) 2004-2009 Analog Devices, Inc.\n");
if (bfin_compiled_revid() == 0xffff)
printk(KERN_INFO "Compiled for ADSP-%s Rev any\n", CPU);
else if (bfin_compiled_revid() == -1)
diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index 5b0667da8d0..ffe7fb53ecc 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -673,6 +673,14 @@ static void decode_instruction(unsigned short *address)
verbose_printk("RTI");
else if (opcode == 0x0012)
verbose_printk("RTX");
+ else if (opcode == 0x0013)
+ verbose_printk("RTN");
+ else if (opcode == 0x0014)
+ verbose_printk("RTE");
+ else if (opcode == 0x0025)
+ verbose_printk("EMUEXCPT");
+ else if (opcode == 0x0040 && opcode <= 0x0047)
+ verbose_printk("STI R%i", opcode & 7);
else if (opcode >= 0x0050 && opcode <= 0x0057)
verbose_printk("JUMP (P%i)", opcode & 7);
else if (opcode >= 0x0060 && opcode <= 0x0067)
@@ -681,6 +689,10 @@ static void decode_instruction(unsigned short *address)
verbose_printk("CALL (PC+P%i)", opcode & 7);
else if (opcode >= 0x0080 && opcode <= 0x0087)
verbose_printk("JUMP (PC+P%i)", opcode & 7);
+ else if (opcode >= 0x0090 && opcode <= 0x009F)
+ verbose_printk("RAISE 0x%x", opcode & 0xF);
+ else if (opcode >= 0x00A0 && opcode <= 0x00AF)
+ verbose_printk("EXCPT 0x%x", opcode & 0xF);
else if ((opcode >= 0x1000 && opcode <= 0x13FF) || (opcode >= 0x1800 && opcode <= 0x1BFF))
verbose_printk("IF !CC JUMP");
else if ((opcode >= 0x1400 && opcode <= 0x17ff) || (opcode >= 0x1c00 && opcode <= 0x1fff))
@@ -820,11 +832,8 @@ void show_stack(struct task_struct *task, unsigned long *stack)
decode_address(buf, (unsigned int)stack);
printk(KERN_NOTICE " SP: [0x%p] %s\n", stack, buf);
- addr = (unsigned int *)((unsigned int)stack & ~0x3F);
-
/* First thing is to look for a frame pointer */
- for (addr = (unsigned int *)((unsigned int)stack & ~0xF), i = 0;
- addr < endstack; addr++, i++) {
+ for (addr = (unsigned int *)((unsigned int)stack & ~0xF); addr < endstack; addr++) {
if (*addr & 0x1)
continue;
ins_addr = (unsigned short *)*addr;
@@ -834,7 +843,8 @@ void show_stack(struct task_struct *task, unsigned long *stack)
if (fp) {
/* Let's check to see if it is a frame pointer */
- while (fp >= (addr - 1) && fp < endstack && fp)
+ while (fp >= (addr - 1) && fp < endstack
+ && fp && ((unsigned int) fp & 0x3) == 0)
fp = (unsigned int *)*fp;
if (fp == 0 || fp == endstack) {
fp = addr - 1;
@@ -1052,8 +1062,9 @@ void show_regs(struct pt_regs *fp)
char buf [150];
struct irqaction *action;
unsigned int i;
- unsigned long flags;
+ unsigned long flags = 0;
unsigned int cpu = smp_processor_id();
+ unsigned char in_atomic = (bfin_read_IPEND() & 0x10) || in_atomic();
verbose_printk(KERN_NOTICE "\n" KERN_NOTICE "SEQUENCER STATUS:\t\t%s\n", print_tainted());
verbose_printk(KERN_NOTICE " SEQSTAT: %08lx IPEND: %04lx SYSCFG: %04lx\n",
@@ -1073,17 +1084,22 @@ void show_regs(struct pt_regs *fp)
}
verbose_printk(KERN_NOTICE " EXCAUSE : 0x%lx\n",
fp->seqstat & SEQSTAT_EXCAUSE);
- for (i = 6; i <= 15 ; i++) {
+ for (i = 2; i <= 15 ; i++) {
if (fp->ipend & (1 << i)) {
- decode_address(buf, bfin_read32(EVT0 + 4*i));
- verbose_printk(KERN_NOTICE " physical IVG%i asserted : %s\n", i, buf);
+ if (i != 4) {
+ decode_address(buf, bfin_read32(EVT0 + 4*i));
+ verbose_printk(KERN_NOTICE " physical IVG%i asserted : %s\n", i, buf);
+ } else
+ verbose_printk(KERN_NOTICE " interrupts disabled\n");
}
}
/* if no interrupts are going off, don't print this out */
if (fp->ipend & ~0x3F) {
for (i = 0; i < (NR_IRQS - 1); i++) {
- spin_lock_irqsave(&irq_desc[i].lock, flags);
+ if (!in_atomic)
+ spin_lock_irqsave(&irq_desc[i].lock, flags);
+
action = irq_desc[i].action;
if (!action)
goto unlock;
@@ -1096,7 +1112,8 @@ void show_regs(struct pt_regs *fp)
}
verbose_printk("\n");
unlock:
- spin_unlock_irqrestore(&irq_desc[i].lock, flags);
+ if (!in_atomic)
+ spin_unlock_irqrestore(&irq_desc[i].lock, flags);
}
}