[ARM] 3822/1: iop3xx: rewrite time handling

Merge and rewrite the iop32x/iop33x time code to do lost jiffy
tracking properly, and put the result in plat-iop/time.c.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

3 files changed, 32 insertions, 0 deletions

diff --git a/include/asm-arm/arch-iop32x/iop321.h b/include/asm-arm/arch-iop32x/iop321.h
index e3c85a05e73a..bd96b8d55a76 100644
--- a/include/asm-arm/arch-iop32x/iop321.h
+++ b/include/asm-arm/arch-iop32x/iop321.h
@@ -233,6 +233,12 @@
 
 /* for I2C bit defs see drivers/i2c/i2c-iop3xx.h */
 
+/*
+ * Peripherals that are shared between the iop32x and iop33x but
+ * located at different addresses.
+ */
+#define IOP3XX_TIMER_REG(reg)  (IOP3XX_PERIPHERAL_VIRT_BASE + 0x07e0 + (reg))
+
 #include <asm/hardware/iop3xx.h>
 
 
diff --git a/include/asm-arm/arch-iop33x/iop331.h b/include/asm-arm/arch-iop33x/iop331.h
index e85e1a2e1a86..b301ef8f7f32 100644
--- a/include/asm-arm/arch-iop33x/iop331.h
+++ b/include/asm-arm/arch-iop33x/iop331.h
@@ -238,6 +238,12 @@
 
 /* Reserved 0x0000178c through 0x000019ff */
 
+/*
+ * Peripherals that are shared between the iop32x and iop33x but
+ * located at different addresses.
+ */
+#define IOP3XX_TIMER_REG(reg)  (IOP3XX_PERIPHERAL_VIRT_BASE + 0x07d0 + (reg))
+
 #include <asm/hardware/iop3xx.h>
 
 
diff --git a/include/asm-arm/hardware/iop3xx.h b/include/asm-arm/hardware/iop3xx.h
index d488ced2e12d..b21ea41b149e 100644
--- a/include/asm-arm/hardware/iop3xx.h
+++ b/include/asm-arm/hardware/iop3xx.h
@@ -81,6 +81,24 @@
 #define IOP3XX_PCIXSR           (volatile u32 *)IOP3XX_REG_ADDR(0x01e4)
 #define IOP3XX_PCIIRSR          (volatile u32 *)IOP3XX_REG_ADDR(0x01ec)
 
+/* Timers  */
+#define IOP3XX_TU_TMR0          (volatile u32 *)IOP3XX_TIMER_REG(0x0000)
+#define IOP3XX_TU_TMR1          (volatile u32 *)IOP3XX_TIMER_REG(0x0004)
+#define IOP3XX_TU_TCR0          (volatile u32 *)IOP3XX_TIMER_REG(0x0008)
+#define IOP3XX_TU_TCR1          (volatile u32 *)IOP3XX_TIMER_REG(0x000c)
+#define IOP3XX_TU_TRR0          (volatile u32 *)IOP3XX_TIMER_REG(0x0010)
+#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
+
 /* I2C bus interface unit  */
 #define IOP3XX_ICR0             (volatile u32 *)IOP3XX_REG_ADDR(0x1680)
 #define IOP3XX_ISR0             (volatile u32 *)IOP3XX_REG_ADDR(0x1684)
@@ -109,6 +127,8 @@
 
 #ifndef __ASSEMBLY__
 void iop3xx_map_io(void);
+void iop3xx_init_time(unsigned long);
+unsigned long iop3xx_gettimeoffset(void);
 
 extern struct platform_device iop3xx_i2c0_device;
 extern struct platform_device iop3xx_i2c1_device;