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authorSonic Zhang <sonic.zhang@analog.com>2012-06-29 18:19:29 +0800
committerBob Liu <lliubbo@gmail.com>2012-07-24 13:39:52 +0800
commite0a593104d43dc98250984daa1b82f964835fcfa (patch)
treeed8202bb9b2ab089871cd9d87c455c97ae496f4f /arch/blackfin/mach-common
parent11b27cb5b97319bae0a1604ddac85b9b08802a7e (diff)
downloadlinux-e0a593104d43dc98250984daa1b82f964835fcfa.tar.bz2
bf60x: sec: Enable sec interrupt source priority configuration.
Customize the SEC interrupt priority array in machine ints-priority.c. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bob Liu <lliubbo@gmail.com>
Diffstat (limited to 'arch/blackfin/mach-common')
-rw-r--r--arch/blackfin/mach-common/ints-priority.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index a7e97a3607da..5a109a184021 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/arch/blackfin/mach-common/ints-priority.c
@@ -310,6 +310,23 @@ static void bfin_sec_disable(struct irq_data *d)
hard_local_irq_restore(flags);
}
+static void bfin_sec_set_priority(unsigned int sec_int_levels, u8 *sec_int_priority)
+{
+ unsigned long flags = hard_local_irq_save();
+ uint32_t reg_sctl;
+ int i;
+
+ bfin_write_SEC_SCI(0, SEC_CPLVL, sec_int_levels);
+
+ for (i = 0; i < SYS_IRQS - BFIN_IRQ(0); i++) {
+ reg_sctl = bfin_read_SEC_SCTL(i) & ~SEC_SCTL_PRIO;
+ reg_sctl |= sec_int_priority[i] << SEC_SCTL_PRIO_OFFSET;
+ bfin_write_SEC_SCTL(i, reg_sctl);
+ }
+
+ hard_local_irq_restore(flags);
+}
+
static void bfin_sec_raise_irq(unsigned int sid)
{
unsigned long flags = hard_local_irq_save();
@@ -1534,6 +1551,10 @@ int __init init_arch_irq(void)
printk(KERN_INFO "Configuring Blackfin Priority Driven Interrupts\n");
+ bfin_sec_set_priority(CONFIG_SEC_IRQ_PRIORITY_LEVELS, sec_int_priority);
+
+ bfin_sec_set_priority(CONFIG_SEC_IRQ_PRIORITY_LEVELS, sec_int_priority);
+
/* Enable interrupts IVG7-15 */
bfin_irq_flags |= IMASK_IVG15 |
IMASK_IVG14 | IMASK_IVG13 | IMASK_IVG12 | IMASK_IVG11 |