summaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
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
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')
-rw-r--r--arch/blackfin/mach-bf609/Kconfig8
-rw-r--r--arch/blackfin/mach-bf609/Makefile2
-rw-r--r--arch/blackfin/mach-bf609/include/mach/irq.h4
-rw-r--r--arch/blackfin/mach-bf609/ints-priority.c156
-rw-r--r--arch/blackfin/mach-common/ints-priority.c21
5 files changed, 190 insertions, 1 deletions
diff --git a/arch/blackfin/mach-bf609/Kconfig b/arch/blackfin/mach-bf609/Kconfig
index 2cb727243778..101b33ee9bba 100644
--- a/arch/blackfin/mach-bf609/Kconfig
+++ b/arch/blackfin/mach-bf609/Kconfig
@@ -51,6 +51,14 @@ config PINT5_ASSIGN
endmenu
+config SEC_IRQ_PRIORITY_LEVELS
+ int "SEC interrupt priority levels"
+ default 7
+ range 0 7
+ help
+ Devide the total number of interrupt priority levels into sub-levels.
+ There is 2 ^ (SEC_IRQ_PRIORITY_LEVELS + 1) different levels.
+
endmenu
endif
diff --git a/arch/blackfin/mach-bf609/Makefile b/arch/blackfin/mach-bf609/Makefile
index 9a3d9f252c11..234fe1b4bb0e 100644
--- a/arch/blackfin/mach-bf609/Makefile
+++ b/arch/blackfin/mach-bf609/Makefile
@@ -2,5 +2,5 @@
# arch/blackfin/mach-bf609/Makefile
#
-obj-y := dma.o clock.o
+obj-y := dma.o clock.o ints-priority.o
obj-$(CONFIG_PM) += pm.o dpm.o
diff --git a/arch/blackfin/mach-bf609/include/mach/irq.h b/arch/blackfin/mach-bf609/include/mach/irq.h
index 0004552433b2..23e74cdeeee8 100644
--- a/arch/blackfin/mach-bf609/include/mach/irq.h
+++ b/arch/blackfin/mach-bf609/include/mach/irq.h
@@ -293,9 +293,13 @@
#define NR_MACH_IRQS (IRQ_PG15 + 1)
+#define SEC_SCTL_PRIO_OFFSET 8
+
#ifndef __ASSEMBLY__
#include <linux/types.h>
+extern u8 sec_int_priority[];
+
/*
* bfin pint registers layout
*/
diff --git a/arch/blackfin/mach-bf609/ints-priority.c b/arch/blackfin/mach-bf609/ints-priority.c
new file mode 100644
index 000000000000..f68abb9aa79e
--- /dev/null
+++ b/arch/blackfin/mach-bf609/ints-priority.c
@@ -0,0 +1,156 @@
+/*
+ * Copyright 2007-2008 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ *
+ * Set up the interrupt priorities
+ */
+
+#include <linux/module.h>
+#include <linux/irq.h>
+#include <asm/blackfin.h>
+
+u8 sec_int_priority[] = {
+ 255, /* IRQ_SEC_ERR */
+ 255, /* IRQ_CGU_EVT */
+ 254, /* IRQ_WATCH0 */
+ 254, /* IRQ_WATCH1 */
+ 253, /* IRQ_L2CTL0_ECC_ERR */
+ 253, /* IRQ_L2CTL0_ECC_WARN */
+ 253, /* IRQ_C0_DBL_FAULT */
+ 253, /* IRQ_C1_DBL_FAULT */
+ 252, /* IRQ_C0_HW_ERR */
+ 252, /* IRQ_C1_HW_ERR */
+ 255, /* IRQ_C0_NMI_L1_PARITY_ERR */
+ 255, /* IRQ_C1_NMI_L1_PARITY_ERR */
+
+ 50, /* IRQ_TIMER0 */
+ 50, /* IRQ_TIMER1 */
+ 50, /* IRQ_TIMER2 */
+ 50, /* IRQ_TIMER3 */
+ 50, /* IRQ_TIMER4 */
+ 50, /* IRQ_TIMER5 */
+ 50, /* IRQ_TIMER6 */
+ 50, /* IRQ_TIMER7 */
+ 50, /* IRQ_TIMER_STAT */
+ 0, /* IRQ_PINT0 */
+ 0, /* IRQ_PINT1 */
+ 0, /* IRQ_PINT2 */
+ 0, /* IRQ_PINT3 */
+ 0, /* IRQ_PINT4 */
+ 0, /* IRQ_PINT5 */
+ 0, /* IRQ_CNT */
+ 50, /* RQ_PWM0_TRIP */
+ 50, /* IRQ_PWM0_SYNC */
+ 50, /* IRQ_PWM1_TRIP */
+ 50, /* IRQ_PWM1_SYNC */
+ 0, /* IRQ_TWI0 */
+ 0, /* IRQ_TWI1 */
+ 10, /* IRQ_SOFT0 */
+ 10, /* IRQ_SOFT1 */
+ 10, /* IRQ_SOFT2 */
+ 10, /* IRQ_SOFT3 */
+ 0, /* IRQ_ACM_EVT_MISS */
+ 0, /* IRQ_ACM_EVT_COMPLETE */
+ 0, /* IRQ_CAN0_RX */
+ 0, /* IRQ_CAN0_TX */
+ 0, /* IRQ_CAN0_STAT */
+ 100, /* IRQ_SPORT0_TX */
+ 100, /* IRQ_SPORT0_TX_STAT */
+ 100, /* IRQ_SPORT0_RX */
+ 100, /* IRQ_SPORT0_RX_STAT */
+ 100, /* IRQ_SPORT1_TX */
+ 100, /* IRQ_SPORT1_TX_STAT */
+ 100, /* IRQ_SPORT1_RX */
+ 100, /* IRQ_SPORT1_RX_STAT */
+ 100, /* IRQ_SPORT2_TX */
+ 100, /* IRQ_SPORT2_TX_STAT */
+ 100, /* IRQ_SPORT2_RX */
+ 100, /* IRQ_SPORT2_RX_STAT */
+ 0, /* IRQ_SPI0_TX */
+ 0, /* IRQ_SPI0_RX */
+ 0, /* IRQ_SPI0_STAT */
+ 0, /* IRQ_SPI1_TX */
+ 0, /* IRQ_SPI1_RX */
+ 0, /* IRQ_SPI1_STAT */
+ 0, /* IRQ_RSI */
+ 0, /* IRQ_RSI_INT0 */
+ 0, /* IRQ_RSI_INT1 */
+ 0, /* DMA11 Data (SDU) */
+ 0, /* DMA12 Data (Reserved) */
+ 0, /* Reserved */
+ 0, /* Reserved */
+ 30, /* IRQ_EMAC0_STAT */
+ 0, /* EMAC0 Power (Reserved) */
+ 30, /* IRQ_EMAC1_STAT */
+ 0, /* EMAC1 Power (Reserved) */
+ 0, /* IRQ_LP0 */
+ 0, /* IRQ_LP0_STAT */
+ 0, /* IRQ_LP1 */
+ 0, /* IRQ_LP1_STAT */
+ 0, /* IRQ_LP2 */
+ 0, /* IRQ_LP2_STAT */
+ 0, /* IRQ_LP3 */
+ 0, /* IRQ_LP3_STAT */
+ 0, /* IRQ_UART0_TX */
+ 0, /* IRQ_UART0_RX */
+ 0, /* IRQ_UART0_STAT */
+ 0, /* IRQ_UART1_TX */
+ 0, /* IRQ_UART1_RX */
+ 0, /* IRQ_UART1_STAT */
+ 0, /* IRQ_MDMA0_SRC_CRC0 */
+ 0, /* IRQ_MDMA0_DEST_CRC0 */
+ 0, /* IRQ_CRC0_DCNTEXP */
+ 0, /* IRQ_CRC0_ERR */
+ 0, /* IRQ_MDMA1_SRC_CRC1 */
+ 0, /* IRQ_MDMA1_DEST_CRC1 */
+ 0, /* IRQ_CRC1_DCNTEXP */
+ 0, /* IRQ_CRC1_ERR */
+ 0, /* IRQ_MDMA2_SRC */
+ 0, /* IRQ_MDMA2_DEST */
+ 0, /* IRQ_MDMA3_SRC */
+ 0, /* IRQ_MDMA3_DEST */
+ 120, /* IRQ_EPPI0_CH0 */
+ 120, /* IRQ_EPPI0_CH1 */
+ 120, /* IRQ_EPPI0_STAT */
+ 120, /* IRQ_EPPI2_CH0 */
+ 120, /* IRQ_EPPI2_CH1 */
+ 120, /* IRQ_EPPI2_STAT */
+ 120, /* IRQ_EPPI1_CH0 */
+ 120, /* IRQ_EPPI1_CH1 */
+ 120, /* IRQ_EPPI1_STAT */
+ 120, /* IRQ_PIXC_CH0 */
+ 120, /* IRQ_PIXC_CH1 */
+ 120, /* IRQ_PIXC_CH2 */
+ 120, /* IRQ_PIXC_STAT */
+ 120, /* IRQ_PVP_CPDOB */
+ 120, /* IRQ_PVP_CPDOC */
+ 120, /* IRQ_PVP_CPSTAT */
+ 120, /* IRQ_PVP_CPCI */
+ 120, /* IRQ_PVP_STAT0 */
+ 120, /* IRQ_PVP_MPDO */
+ 120, /* IRQ_PVP_MPDI */
+ 120, /* IRQ_PVP_MPSTAT */
+ 120, /* IRQ_PVP_MPCI */
+ 120, /* IRQ_PVP_CPDOA */
+ 120, /* IRQ_PVP_STAT1 */
+ 0, /* IRQ_USB_STAT */
+ 0, /* IRQ_USB_DMA */
+ 0, /* IRQ_TRU_INT0 */
+ 0, /* IRQ_TRU_INT1 */
+ 0, /* IRQ_TRU_INT2 */
+ 0, /* IRQ_TRU_INT3 */
+ 0, /* IRQ_DMAC0_ERROR */
+ 0, /* IRQ_CGU0_ERROR */
+ 0, /* Reserved */
+ 0, /* IRQ_DPM */
+ 0, /* Reserved */
+ 0, /* IRQ_SWU0 */
+ 0, /* IRQ_SWU1 */
+ 0, /* IRQ_SWU2 */
+ 0, /* IRQ_SWU3 */
+ 0, /* IRQ_SWU4 */
+ 0, /* IRQ_SWU4 */
+ 0, /* IRQ_SWU6 */
+};
+
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 |