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Diffstat (limited to 'arch/mips/include/asm/netlogic/xlr/pic.h')
-rw-r--r--arch/mips/include/asm/netlogic/xlr/pic.h58
1 files changed, 50 insertions, 8 deletions
diff --git a/arch/mips/include/asm/netlogic/xlr/pic.h b/arch/mips/include/asm/netlogic/xlr/pic.h
index 9a691b1f91b..63c99176dff 100644
--- a/arch/mips/include/asm/netlogic/xlr/pic.h
+++ b/arch/mips/include/asm/netlogic/xlr/pic.h
@@ -35,10 +35,11 @@
#ifndef _ASM_NLM_XLR_PIC_H
#define _ASM_NLM_XLR_PIC_H
-#define PIC_CLKS_PER_SEC 66666666ULL
+#define PIC_CLK_HZ 66666666
/* PIC hardware interrupt numbers */
#define PIC_IRT_WD_INDEX 0
#define PIC_IRT_TIMER_0_INDEX 1
+#define PIC_IRT_TIMER_INDEX(i) ((i) + PIC_IRT_TIMER_0_INDEX)
#define PIC_IRT_TIMER_1_INDEX 2
#define PIC_IRT_TIMER_2_INDEX 3
#define PIC_IRT_TIMER_3_INDEX 4
@@ -99,6 +100,7 @@
/* PIC Registers */
#define PIC_CTRL 0x00
+#define PIC_CTRL_STE 8 /* timer enable start bit */
#define PIC_IPI 0x04
#define PIC_INT_ACK 0x06
@@ -116,7 +118,7 @@
#define PIC_TIMER_COUNT_0_BASE 0x120
#define PIC_TIMER_COUNT_1_BASE 0x130
-#define PIC_IRT_0(picintr) (PIC_IRT_0_BASE + (picintr))
+#define PIC_IRT_0(picintr) (PIC_IRT_0_BASE + (picintr))
#define PIC_IRT_1(picintr) (PIC_IRT_1_BASE + (picintr))
#define PIC_TIMER_MAXVAL_0(i) (PIC_TIMER_MAXVAL_0_BASE + (i))
@@ -130,9 +132,9 @@
* 8-39. This leaves the IRQ 0-7 for cpu interrupts like
* count/compare and FMN
*/
-#define PIC_IRQ_BASE 8
-#define PIC_INTR_TO_IRQ(i) (PIC_IRQ_BASE + (i))
-#define PIC_IRQ_TO_INTR(i) ((i) - PIC_IRQ_BASE)
+#define PIC_IRQ_BASE 8
+#define PIC_INTR_TO_IRQ(i) (PIC_IRQ_BASE + (i))
+#define PIC_IRQ_TO_INTR(i) ((i) - PIC_IRQ_BASE)
#define PIC_IRT_FIRST_IRQ PIC_IRQ_BASE
#define PIC_WD_IRQ PIC_INTR_TO_IRQ(PIC_IRT_WD_INDEX)
@@ -168,7 +170,7 @@
#define PIC_BRIDGE_AERR_IRQ PIC_INTR_TO_IRQ(PIC_IRT_BRIDGE_AERR_INDEX)
#define PIC_BRIDGE_BERR_IRQ PIC_INTR_TO_IRQ(PIC_IRT_BRIDGE_BERR_INDEX)
#define PIC_BRIDGE_TB_XLR_IRQ PIC_INTR_TO_IRQ(PIC_IRT_BRIDGE_TB_XLR_INDEX)
-#define PIC_BRIDGE_AERR_NMI_IRQ PIC_INTR_TO_IRQ(PIC_IRT_BRIDGE_AERR_NMI_INDEX)
+#define PIC_BRIDGE_AERR_NMI_IRQ PIC_INTR_TO_IRQ(PIC_IRT_BRIDGE_AERR_NMI_INDEX)
/* XLS defines */
#define PIC_GMAC_4_IRQ PIC_INTR_TO_IRQ(PIC_IRT_GMAC4_INDEX)
#define PIC_GMAC_5_IRQ PIC_INTR_TO_IRQ(PIC_IRT_GMAC5_INDEX)
@@ -251,12 +253,52 @@ nlm_pic_ack(uint64_t base, int irt)
}
static inline void
-nlm_pic_init_irt(uint64_t base, int irt, int irq, int hwt)
+nlm_pic_init_irt(uint64_t base, int irt, int irq, int hwt, int en)
{
nlm_write_reg(base, PIC_IRT_0(irt), (1u << hwt));
/* local scheduling, invalid, level by default */
nlm_write_reg(base, PIC_IRT_1(irt),
- (1 << 30) | (1 << 6) | irq);
+ (en << 30) | (1 << 6) | irq);
+}
+
+static inline uint64_t
+nlm_pic_read_timer(uint64_t base, int timer)
+{
+ uint32_t up1, up2, low;
+
+ up1 = nlm_read_reg(base, PIC_TIMER_COUNT_1(timer));
+ low = nlm_read_reg(base, PIC_TIMER_COUNT_0(timer));
+ up2 = nlm_read_reg(base, PIC_TIMER_COUNT_1(timer));
+
+ if (up1 != up2) /* wrapped, get the new low */
+ low = nlm_read_reg(base, PIC_TIMER_COUNT_0(timer));
+ return ((uint64_t)up2 << 32) | low;
+
+}
+
+static inline uint32_t
+nlm_pic_read_timer32(uint64_t base, int timer)
+{
+ return nlm_read_reg(base, PIC_TIMER_COUNT_0(timer));
+}
+
+static inline void
+nlm_pic_set_timer(uint64_t base, int timer, uint64_t value, int irq, int cpu)
+{
+ uint32_t up, low;
+ uint64_t pic_ctrl = nlm_read_reg(base, PIC_CTRL);
+ int en;
+
+ en = (irq > 0);
+ up = value >> 32;
+ low = value & 0xFFFFFFFF;
+ nlm_write_reg(base, PIC_TIMER_MAXVAL_0(timer), low);
+ nlm_write_reg(base, PIC_TIMER_MAXVAL_1(timer), up);
+ nlm_pic_init_irt(base, PIC_IRT_TIMER_INDEX(timer), irq, cpu, 0);
+
+ /* enable the timer */
+ pic_ctrl |= (1 << (PIC_CTRL_STE + timer));
+ nlm_write_reg(base, PIC_CTRL, pic_ctrl);
}
#endif
#endif /* _ASM_NLM_XLR_PIC_H */