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authorSonic Zhang <sonic.zhang@analog.com>2012-06-28 19:16:48 +0800
committerBob Liu <lliubbo@gmail.com>2012-07-24 13:39:51 +0800
commit11b27cb5b97319bae0a1604ddac85b9b08802a7e (patch)
treef3b407c53e122150830a3bac9598688e93f0cd17 /arch/blackfin
parent2984b52b07ce45495700ce82f085800431b79cdc (diff)
downloadlinux-linaro-stable-11b27cb5b97319bae0a1604ddac85b9b08802a7e.tar.gz
bf60x: sec: Clean up interrupt initialization code for SEC.
Turn SEC related macro CONFIG_BF60x into SEC_GCTL. Move machine specific GPIO_PINT macros to machine gpio header. Split SEC init_arch_irq() and vec_to_irq() from old SIC. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
Diffstat (limited to 'arch/blackfin')
-rw-r--r--arch/blackfin/mach-bf548/include/mach/gpio.h2
-rw-r--r--arch/blackfin/mach-bf609/include/mach/gpio.h2
-rw-r--r--arch/blackfin/mach-common/ints-priority.c208
3 files changed, 125 insertions, 87 deletions
diff --git a/arch/blackfin/mach-bf548/include/mach/gpio.h b/arch/blackfin/mach-bf548/include/mach/gpio.h
index 35c8ced46158..be9edb28f96b 100644
--- a/arch/blackfin/mach-bf548/include/mach/gpio.h
+++ b/arch/blackfin/mach-bf548/include/mach/gpio.h
@@ -171,6 +171,8 @@
#define MAX_BLACKFIN_GPIOS 160
#define BFIN_GPIO_PINT 1
+#define NR_PINT_SYS_IRQS 4
+#define NR_PINTS 160
#ifndef __ASSEMBLY__
diff --git a/arch/blackfin/mach-bf609/include/mach/gpio.h b/arch/blackfin/mach-bf609/include/mach/gpio.h
index 127586b1e04a..c32c8cc8db2e 100644
--- a/arch/blackfin/mach-bf609/include/mach/gpio.h
+++ b/arch/blackfin/mach-bf609/include/mach/gpio.h
@@ -123,6 +123,8 @@
#define BFIN_GPIO_PINT 1
+#define NR_PINT_SYS_IRQS 6
+#define NR_PINTS 112
#ifndef __ASSEMBLY__
diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index c4b94c42db83..a7e97a3607da 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/arch/blackfin/mach-common/ints-priority.c
@@ -27,7 +27,7 @@
#include <asm/irq_handler.h>
#include <asm/dpmc.h>
-#ifndef CONFIG_BF60x
+#ifndef SEC_GCTL
# define SIC_SYSIRQ(irq) (irq - (IRQ_CORETMR + 1))
#else
# define SIC_SYSIRQ(irq) ((irq) - IVG15)
@@ -56,7 +56,7 @@ unsigned long bfin_sic_iwr[3]; /* Up to 3 SIC_IWRx registers */
unsigned vr_wakeup;
#endif
-#ifndef CONFIG_BF60x
+#ifndef SEC_GCTL
static struct ivgx {
/* irq number for request_irq, available in mach-bf5xx/irq.h */
unsigned int irqno;
@@ -143,7 +143,7 @@ static void bfin_core_unmask_irq(struct irq_data *d)
void bfin_internal_mask_irq(unsigned int irq)
{
unsigned long flags = hard_local_irq_save();
-#ifndef CONFIG_BF60x
+#ifndef SEC_GCTL
#ifdef SIC_IMASK0
unsigned mask_bank = SIC_SYSIRQ(irq) / 32;
unsigned mask_bit = SIC_SYSIRQ(irq) % 32;
@@ -175,7 +175,7 @@ void bfin_internal_unmask_irq(unsigned int irq)
{
unsigned long flags = hard_local_irq_save();
-#ifndef CONFIG_BF60x
+#ifndef SEC_GCTL
#ifdef SIC_IMASK0
unsigned mask_bank = SIC_SYSIRQ(irq) / 32;
unsigned mask_bit = SIC_SYSIRQ(irq) % 32;
@@ -199,7 +199,7 @@ void bfin_internal_unmask_irq(unsigned int irq)
hard_local_irq_restore(flags);
}
-#ifdef CONFIG_BF60x
+#ifdef SEC_GCTL
static void bfin_sec_preflow_handler(struct irq_data *d)
{
unsigned long flags = hard_local_irq_save();
@@ -419,7 +419,7 @@ static void bfin_internal_unmask_irq_chip(struct irq_data *d)
}
#endif
-#if defined(CONFIG_PM) && !defined(CONFIG_BF60x)
+#if defined(CONFIG_PM) && !defined(SEC_GCTL)
int bfin_internal_set_wake(unsigned int irq, unsigned int state)
{
u32 bank, bit, wakeup = 0;
@@ -503,7 +503,7 @@ static struct irq_chip bfin_internal_irqchip = {
.irq_set_wake = bfin_internal_set_wake_chip,
};
-#ifdef CONFIG_BF60x
+#ifdef SEC_GCTL
static struct irq_chip bfin_sec_irqchip = {
.name = "SEC",
.irq_mask_ack = bfin_sec_mask_ack_irq,
@@ -512,7 +512,6 @@ static struct irq_chip bfin_sec_irqchip = {
.irq_eoi = bfin_sec_unmask_irq,
.irq_disable = bfin_sec_disable,
.irq_enable = bfin_sec_enable,
- .irq_set_wake = bfin_internal_set_wake,
};
#endif
@@ -854,14 +853,6 @@ void bfin_demux_gpio_irq(unsigned int inta_irq,
#else
-# ifndef CONFIG_BF60x
-#define NR_PINT_SYS_IRQS 4
-#define NR_PINTS 160
-# else
-#define NR_PINT_SYS_IRQS 6
-#define NR_PINTS 112
-#endif
-
#define NR_PINT_BITS 32
#define IRQ_NOT_AVAIL 0xFF
@@ -883,29 +874,21 @@ static struct bfin_pint_regs * const pint[NR_PINT_SYS_IRQS] = {
#endif
};
-#ifndef CONFIG_BF60x
inline unsigned int get_irq_base(u32 bank, u8 bmap)
{
unsigned int irq_base;
+#ifndef CONFIG_BF60x
if (bank < 2) { /*PA-PB */
irq_base = IRQ_PA0 + bmap * 16;
} else { /*PC-PJ */
irq_base = IRQ_PC0 + bmap * 16;
}
-
- return irq_base;
-}
#else
-inline unsigned int get_irq_base(u32 bank, u8 bmap)
-{
- unsigned int irq_base;
-
irq_base = IRQ_PA0 + bank * 16 + bmap * 16;
-
+#endif
return irq_base;
}
-#endif
/* Whenever PINTx_ASSIGN is altered init_pint_lut() must be executed! */
void init_pint_lut(void)
@@ -1138,7 +1121,7 @@ void bfin_pint_resume(void)
}
}
-#ifdef CONFIG_BF60x
+#ifdef SEC_GCTL
static int sec_suspend(void)
{
u32 bank;
@@ -1272,6 +1255,7 @@ void __cpuinit init_exception_vectors(void)
CSYNC();
}
+#ifndef SEC_GCTL
/*
* This function should be called during kernel startup to initialize
* the BFin IRQ handling routines.
@@ -1282,7 +1266,6 @@ int __init init_arch_irq(void)
int irq;
unsigned long ilat = 0;
-#ifndef CONFIG_BF60x
/* Disable all the peripheral intrs - page 4-29 HW Ref manual */
#ifdef SIC_IMASK0
bfin_write_SIC_IMASK0(SIC_UNMASK_ALL);
@@ -1297,9 +1280,6 @@ int __init init_arch_irq(void)
#else
bfin_write_SIC_IMASK(SIC_UNMASK_ALL);
#endif
-#else /* CONFIG_BF60x */
- bfin_write_SEC_GCTL(SEC_GCTL_RESET);
-#endif
local_irq_disable();
@@ -1309,10 +1289,6 @@ int __init init_arch_irq(void)
pint[1]->assign = CONFIG_PINT1_ASSIGN;
pint[2]->assign = CONFIG_PINT2_ASSIGN;
pint[3]->assign = CONFIG_PINT3_ASSIGN;
-# ifdef CONFIG_BF60x
- pint[4]->assign = CONFIG_PINT4_ASSIGN;
- pint[5]->assign = CONFIG_PINT5_ASSIGN;
-# endif
# endif
/* Whenever PINTx_ASSIGN is altered init_pint_lut() must be executed! */
init_pint_lut();
@@ -1325,7 +1301,6 @@ int __init init_arch_irq(void)
irq_set_chip(irq, &bfin_internal_irqchip);
switch (irq) {
-#ifndef CONFIG_BF60x
#if BFIN_GPIO_PINT
case IRQ_PINT0:
case IRQ_PINT1:
@@ -1361,7 +1336,6 @@ int __init init_arch_irq(void)
irq_set_handler(irq, handle_percpu_irq);
break;
#endif
-#endif
#ifdef CONFIG_TICKSOURCE_CORETMR
case IRQ_CORETMR:
@@ -1391,8 +1365,7 @@ int __init init_arch_irq(void)
init_mach_irq();
-#ifndef CONFIG_BF60x
-#if (defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)) && !defined(CONFIG_BF60x)
+#if (defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE))
for (irq = IRQ_MAC_PHYINT; irq <= IRQ_MAC_STMDONE; irq++)
irq_set_chip_and_handler(irq, &bfin_mac_status_irqchip,
handle_level_irq);
@@ -1402,28 +1375,6 @@ int __init init_arch_irq(void)
irq < (GPIO_IRQ_BASE + MAX_BLACKFIN_GPIOS); irq++)
irq_set_chip_and_handler(irq, &bfin_gpio_irqchip,
handle_level_irq);
-#else
- for (irq = BFIN_IRQ(0); irq <= SYS_IRQS; irq++) {
- if (irq < CORE_IRQS && irq != IRQ_CGU_EVT) {
- irq_set_chip(irq, &bfin_sec_irqchip);
- __irq_set_handler(irq, handle_sec_fault, 0, NULL);
- } else if (irq >= BFIN_IRQ(21) && irq <= BFIN_IRQ(26)) {
- irq_set_chip(irq, &bfin_sec_irqchip);
- irq_set_chained_handler(irq, bfin_demux_gpio_irq);
- } else if (irq >= BFIN_IRQ(34) && irq <= BFIN_IRQ(37)) {
- irq_set_chip(irq, &bfin_sec_irqchip);
- irq_set_handler(irq, handle_percpu_irq);
- } else {
- irq_set_chip_and_handler(irq, &bfin_sec_irqchip,
- handle_fasteoi_irq);
- __irq_set_preflow_handler(irq, bfin_sec_preflow_handler);
- }
- }
- for (irq = GPIO_IRQ_BASE;
- irq < (GPIO_IRQ_BASE + MAX_BLACKFIN_GPIOS); irq++)
- irq_set_chip_and_handler(irq, &bfin_gpio_irqchip,
- handle_level_irq);
-#endif
bfin_write_IMASK(0);
CSYNC();
ilat = bfin_read_ILAT();
@@ -1435,7 +1386,6 @@ int __init init_arch_irq(void)
/* IMASK=xxx is equivalent to STI xx or bfin_irq_flags=xx,
* local_irq_enable()
*/
-#ifndef CONFIG_BF60x
program_IAR();
/* Therefore it's better to setup IARs before interrupts enabled */
search_IAR();
@@ -1469,23 +1419,6 @@ int __init init_arch_irq(void)
#else
bfin_write_SIC_IWR(IWR_DISABLE_ALL);
#endif
-#else /* CONFIG_BF60x */
- /* Enable interrupts IVG7-15 */
- bfin_irq_flags |= IMASK_IVG15 |
- IMASK_IVG14 | IMASK_IVG13 | IMASK_IVG12 | IMASK_IVG11 |
- IMASK_IVG10 | IMASK_IVG9 | IMASK_IVG8 | IMASK_IVG7 | IMASK_IVGHW;
-
-
- bfin_write_SEC_FCTL(SEC_FCTL_EN | SEC_FCTL_SYSRST_EN | SEC_FCTL_FLTIN_EN);
- bfin_sec_enable_sci(SIC_SYSIRQ(IRQ_WATCH0));
- bfin_sec_enable_ssi(SIC_SYSIRQ(IRQ_WATCH0));
- bfin_write_SEC_SCI(0, SEC_CCTL, SEC_CCTL_RESET);
- udelay(100);
- bfin_write_SEC_GCTL(SEC_GCTL_EN);
- bfin_write_SEC_SCI(0, SEC_CCTL, SEC_CCTL_EN | SEC_CCTL_NMI_EN);
- init_software_driven_irq();
- register_syscore_ops(&sec_pm_syscore_ops);
-#endif
return 0;
}
@@ -1494,14 +1427,11 @@ __attribute__((l1_text))
#endif
static int vec_to_irq(int vec)
{
-#ifndef CONFIG_BF60x
struct ivgx *ivg = ivg7_13[vec - IVG7].ifirst;
struct ivgx *ivg_stop = ivg7_13[vec - IVG7].istop;
unsigned long sic_status[3];
-#endif
if (likely(vec == EVT_IVTMR_P))
return IRQ_CORETMR;
-#ifndef CONFIG_BF60x
#ifdef SIC_ISR
sic_status[0] = bfin_read_SIC_IMASK() & bfin_read_SIC_ISR();
#else
@@ -1530,11 +1460,112 @@ static int vec_to_irq(int vec)
#endif
return ivg->irqno;
}
-#else
- /* for bf60x read */
+}
+
+#else /* SEC_GCTL */
+
+/*
+ * This function should be called during kernel startup to initialize
+ * the BFin IRQ handling routines.
+ */
+
+int __init init_arch_irq(void)
+{
+ int irq;
+ unsigned long ilat = 0;
+
+ bfin_write_SEC_GCTL(SEC_GCTL_RESET);
+
+ local_irq_disable();
+
+#if BFIN_GPIO_PINT
+# ifdef CONFIG_PINTx_REASSIGN
+ pint[0]->assign = CONFIG_PINT0_ASSIGN;
+ pint[1]->assign = CONFIG_PINT1_ASSIGN;
+ pint[2]->assign = CONFIG_PINT2_ASSIGN;
+ pint[3]->assign = CONFIG_PINT3_ASSIGN;
+ pint[4]->assign = CONFIG_PINT4_ASSIGN;
+ pint[5]->assign = CONFIG_PINT5_ASSIGN;
+# endif
+ /* Whenever PINTx_ASSIGN is altered init_pint_lut() must be executed! */
+ init_pint_lut();
+#endif
+
+ for (irq = 0; irq <= SYS_IRQS; irq++) {
+ if (irq <= IRQ_CORETMR) {
+ irq_set_chip(irq, &bfin_core_irqchip);
+#ifdef CONFIG_TICKSOURCE_CORETMR
+ if (irq == IRQ_CORETMR)
+# ifdef CONFIG_SMP
+ irq_set_handler(irq, handle_percpu_irq);
+# else
+ irq_set_handler(irq, handle_simple_irq);
+# endif
+#endif
+ } else if (irq < BFIN_IRQ(0)) {
+ irq_set_chip_and_handler(irq, &bfin_internal_irqchip,
+ handle_simple_irq);
+ } else if (irq < CORE_IRQS && irq != IRQ_CGU_EVT) {
+ irq_set_chip_and_handler(irq, &bfin_sec_irqchip,
+ handle_sec_fault);
+ } else if (irq >= BFIN_IRQ(21) && irq <= BFIN_IRQ(26)) {
+ irq_set_chip(irq, &bfin_sec_irqchip);
+ irq_set_chained_handler(irq, bfin_demux_gpio_irq);
+ } else if (irq >= BFIN_IRQ(34) && irq <= BFIN_IRQ(37)) {
+ irq_set_chip(irq, &bfin_sec_irqchip);
+ irq_set_handler(irq, handle_percpu_irq);
+ } else {
+ irq_set_chip_and_handler(irq, &bfin_sec_irqchip,
+ handle_fasteoi_irq);
+ __irq_set_preflow_handler(irq, bfin_sec_preflow_handler);
+ }
+ }
+ for (irq = GPIO_IRQ_BASE;
+ irq < (GPIO_IRQ_BASE + MAX_BLACKFIN_GPIOS); irq++)
+ irq_set_chip_and_handler(irq, &bfin_gpio_irqchip,
+ handle_level_irq);
+
+ bfin_write_IMASK(0);
+ CSYNC();
+ ilat = bfin_read_ILAT();
+ CSYNC();
+ bfin_write_ILAT(ilat);
+ CSYNC();
+
+ printk(KERN_INFO "Configuring Blackfin Priority Driven Interrupts\n");
+
+ /* Enable interrupts IVG7-15 */
+ bfin_irq_flags |= IMASK_IVG15 |
+ IMASK_IVG14 | IMASK_IVG13 | IMASK_IVG12 | IMASK_IVG11 |
+ IMASK_IVG10 | IMASK_IVG9 | IMASK_IVG8 | IMASK_IVG7 | IMASK_IVGHW;
+
+
+ bfin_write_SEC_FCTL(SEC_FCTL_EN | SEC_FCTL_SYSRST_EN | SEC_FCTL_FLTIN_EN);
+ bfin_sec_enable_sci(SIC_SYSIRQ(IRQ_WATCH0));
+ bfin_sec_enable_ssi(SIC_SYSIRQ(IRQ_WATCH0));
+ bfin_write_SEC_SCI(0, SEC_CCTL, SEC_CCTL_RESET);
+ udelay(100);
+ bfin_write_SEC_GCTL(SEC_GCTL_EN);
+ bfin_write_SEC_SCI(0, SEC_CCTL, SEC_CCTL_EN | SEC_CCTL_NMI_EN);
+ bfin_write_SEC_SCI(1, SEC_CCTL, SEC_CCTL_EN | SEC_CCTL_NMI_EN);
+
+ init_software_driven_irq();
+ register_syscore_ops(&sec_pm_syscore_ops);
+
+ return 0;
+}
+
+#ifdef CONFIG_DO_IRQ_L1
+__attribute__((l1_text))
+#endif
+static int vec_to_irq(int vec)
+{
+ if (likely(vec == EVT_IVTMR_P))
+ return IRQ_CORETMR;
+
return BFIN_IRQ(bfin_read_SEC_SCI(0, SEC_CSID));
-#endif /* end of CONFIG_BF60x */
}
+#endif /* SEC_GCTL */
#ifdef CONFIG_DO_IRQ_L1
__attribute__((l1_text))
@@ -1556,6 +1587,10 @@ int __ipipe_get_irq_priority(unsigned irq)
if (irq <= IRQ_CORETMR)
return irq;
+#ifdef SEC_GCTL
+ if (irq >= BFIN_IRQ(0))
+ return IVG11;
+#else
for (ient = 0; ient < NR_PERI_INTS; ient++) {
struct ivgx *ivg = ivg_table + ient;
if (ivg->irqno == irq) {
@@ -1566,6 +1601,7 @@ int __ipipe_get_irq_priority(unsigned irq)
}
}
}
+#endif
return IVG15;
}
@@ -1578,8 +1614,6 @@ asmlinkage int __ipipe_grab_irq(int vec, struct pt_regs *regs)
{
struct ipipe_percpu_domain_data *p = ipipe_root_cpudom_ptr();
struct ipipe_domain *this_domain = __ipipe_current_domain;
- struct ivgx *ivg_stop = ivg7_13[vec-IVG7].istop;
- struct ivgx *ivg = ivg7_13[vec-IVG7].ifirst;
int irq, s = 0;
irq = vec_to_irq(vec);