[ARM] 4187/1: iop: unify time implementation across iop32x, iop33x, and iop13xx
* architecture specific details are handled in asm/arch/time.h
* ARCH_IOP13XX now selects PLAT_IOP
* as suggested by Lennert use ifdef CONFIG_XSCALE to skip the cp_wait on
XSC3
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/include/asm-arm/arch-iop13xx/iop13xx.h b/include/asm-arm/arch-iop13xx/iop13xx.h
index e743059..d26b755 100644
--- a/include/asm-arm/arch-iop13xx/iop13xx.h
+++ b/include/asm-arm/arch-iop13xx/iop13xx.h
@@ -9,8 +9,6 @@
void iop13xx_map_io(void);
void iop13xx_platform_init(void);
void iop13xx_init_irq(void);
-void iop13xx_init_time(unsigned long tickrate);
-unsigned long iop13xx_gettimeoffset(void);
/* CPUID CP6 R0 Page 0 */
static inline int iop13xx_cpu_id(void)
@@ -453,14 +451,4 @@
#define IOP13XX_PBI_BAR1 IOP13XX_PBI_OFFSET(0x10)
#define IOP13XX_PBI_LR1 IOP13XX_PBI_OFFSET(0x14)
-#define IOP13XX_TMR_TC 0x01
-#define IOP13XX_TMR_EN 0x02
-#define IOP13XX_TMR_RELOAD 0x04
-#define IOP13XX_TMR_PRIVILEGED 0x08
-
-#define IOP13XX_TMR_RATIO_1_1 0x00
-#define IOP13XX_TMR_RATIO_4_1 0x10
-#define IOP13XX_TMR_RATIO_8_1 0x20
-#define IOP13XX_TMR_RATIO_16_1 0x30
-
#endif /* _IOP13XX_HW_H_ */
diff --git a/include/asm-arm/arch-iop13xx/time.h b/include/asm-arm/arch-iop13xx/time.h
new file mode 100644
index 0000000..77a837a
--- /dev/null
+++ b/include/asm-arm/arch-iop13xx/time.h
@@ -0,0 +1,51 @@
+#ifndef _IOP13XX_TIME_H_
+#define _IOP13XX_TIME_H_
+#define IRQ_IOP_TIMER0 IRQ_IOP13XX_TIMER0
+
+#define IOP_TMR_EN 0x02
+#define IOP_TMR_RELOAD 0x04
+#define IOP_TMR_PRIVILEGED 0x08
+#define IOP_TMR_RATIO_1_1 0x00
+
+void iop_init_time(unsigned long tickrate);
+unsigned long iop_gettimeoffset(void);
+
+static inline void write_tmr0(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c0, c9, 0" : : "r" (val));
+}
+
+static inline void write_tmr1(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c1, c9, 0" : : "r" (val));
+}
+
+static inline u32 read_tcr0(void)
+{
+ u32 val;
+ asm volatile("mrc p6, 0, %0, c2, c9, 0" : "=r" (val));
+ return val;
+}
+
+static inline u32 read_tcr1(void)
+{
+ u32 val;
+ asm volatile("mrc p6, 0, %0, c3, c9, 0" : "=r" (val));
+ return val;
+}
+
+static inline void write_trr0(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c4, c9, 0" : : "r" (val));
+}
+
+static inline void write_trr1(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c5, c9, 0" : : "r" (val));
+}
+
+static inline void write_tisr(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c6, c9, 0" : : "r" (val));
+}
+#endif
diff --git a/include/asm-arm/arch-iop32x/time.h b/include/asm-arm/arch-iop32x/time.h
new file mode 100644
index 0000000..0f28c99
--- /dev/null
+++ b/include/asm-arm/arch-iop32x/time.h
@@ -0,0 +1,4 @@
+#ifndef _IOP32X_TIME_H_
+#define _IOP32X_TIME_H_
+#define IRQ_IOP_TIMER0 IRQ_IOP32X_TIMER0
+#endif
diff --git a/include/asm-arm/arch-iop33x/time.h b/include/asm-arm/arch-iop33x/time.h
new file mode 100644
index 0000000..4ac4d76
--- /dev/null
+++ b/include/asm-arm/arch-iop33x/time.h
@@ -0,0 +1,4 @@
+#ifndef _IOP33X_TIME_H_
+#define _IOP33X_TIME_H_
+#define IRQ_IOP_TIMER0 IRQ_IOP33X_TIMER0
+#endif
diff --git a/include/asm-arm/hardware/iop3xx.h b/include/asm-arm/hardware/iop3xx.h
index 47fcbf6..15141a9 100644
--- a/include/asm-arm/hardware/iop3xx.h
+++ b/include/asm-arm/hardware/iop3xx.h
@@ -188,14 +188,10 @@
#define IOP3XX_TU_TRR1 (volatile u32 *)IOP3XX_TIMER_REG(0x0014)
#define IOP3XX_TU_TISR (volatile u32 *)IOP3XX_TIMER_REG(0x0018)
#define IOP3XX_TU_WDTCR (volatile u32 *)IOP3XX_TIMER_REG(0x001c)
-#define IOP3XX_TMR_TC 0x01
-#define IOP3XX_TMR_EN 0x02
-#define IOP3XX_TMR_RELOAD 0x04
-#define IOP3XX_TMR_PRIVILEGED 0x09
-#define IOP3XX_TMR_RATIO_1_1 0x00
-#define IOP3XX_TMR_RATIO_4_1 0x10
-#define IOP3XX_TMR_RATIO_8_1 0x20
-#define IOP3XX_TMR_RATIO_16_1 0x30
+#define IOP_TMR_EN 0x02
+#define IOP_TMR_RELOAD 0x04
+#define IOP_TMR_PRIVILEGED 0x08
+#define IOP_TMR_RATIO_1_1 0x00
/* Application accelerator unit */
#define IOP3XX_AAU_ACR (volatile u32 *)IOP3XX_REG_ADDR(0x0800)
@@ -276,9 +272,48 @@
#ifndef __ASSEMBLY__
void iop3xx_map_io(void);
-void iop3xx_init_time(unsigned long);
-unsigned long iop3xx_gettimeoffset(void);
void iop_init_cp6_handler(void);
+void iop_init_time(unsigned long tickrate);
+unsigned long iop_gettimeoffset(void);
+
+static inline void write_tmr0(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c0, c1, 0" : : "r" (val));
+}
+
+static inline void write_tmr1(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c1, c1, 0" : : "r" (val));
+}
+
+static inline u32 read_tcr0(void)
+{
+ u32 val;
+ asm volatile("mrc p6, 0, %0, c2, c1, 0" : "=r" (val));
+ return val;
+}
+
+static inline u32 read_tcr1(void)
+{
+ u32 val;
+ asm volatile("mrc p6, 0, %0, c3, c1, 0" : "=r" (val));
+ return val;
+}
+
+static inline void write_trr0(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c4, c1, 0" : : "r" (val));
+}
+
+static inline void write_trr1(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c5, c1, 0" : : "r" (val));
+}
+
+static inline void write_tisr(u32 val)
+{
+ asm volatile("mcr p6, 0, %0, c6, c1, 0" : : "r" (val));
+}
extern struct platform_device iop3xx_i2c0_device;
extern struct platform_device iop3xx_i2c1_device;