[MIPS] txx9tmr clockevent/clocksource driver

Convert jmr3927_clock_event_device to more generic
txx9tmr_clock_event_device which supports one-shot mode.  The
txx9tmr_clock_event_device can be used for TX49 too if the cp0 timer
interrupt was not available.

Convert jmr3927_hpt_read to txx9_clocksource driver which does not
depends jiffies anymore.  The txx9_clocksource itself can be used for
TX49, but normally TX49 uses higher precision clocksource_mips.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

6 files changed, 72 insertions, 49 deletions

diff --git a/include/asm-mips/jmr3927/jmr3927.h b/include/asm-mips/jmr3927/jmr3927.h
index b2dc35f5618..81602c8047e 100644
--- a/include/asm-mips/jmr3927/jmr3927.h
+++ b/include/asm-mips/jmr3927/jmr3927.h
@@ -132,9 +132,7 @@
 #define JMR3927_IRQ_IRC_DMA	(JMR3927_IRQ_IRC + TX3927_IR_DMA)
 #define JMR3927_IRQ_IRC_PIO	(JMR3927_IRQ_IRC + TX3927_IR_PIO)
 #define JMR3927_IRQ_IRC_PCI	(JMR3927_IRQ_IRC + TX3927_IR_PCI)
-#define JMR3927_IRQ_IRC_TMR0	(JMR3927_IRQ_IRC + TX3927_IR_TMR0)
-#define JMR3927_IRQ_IRC_TMR1	(JMR3927_IRQ_IRC + TX3927_IR_TMR1)
-#define JMR3927_IRQ_IRC_TMR2	(JMR3927_IRQ_IRC + TX3927_IR_TMR2)
+#define JMR3927_IRQ_IRC_TMR(ch)	(JMR3927_IRQ_IRC + TX3927_IR_TMR(ch))
 #define JMR3927_IRQ_IOC_PCIA	(JMR3927_IRQ_IOC + JMR3927_IOC_INTB_PCIA)
 #define JMR3927_IRQ_IOC_PCIB	(JMR3927_IRQ_IOC + JMR3927_IOC_INTB_PCIB)
 #define JMR3927_IRQ_IOC_PCIC	(JMR3927_IRQ_IOC + JMR3927_IOC_INTB_PCIC)
@@ -148,17 +146,12 @@
 #define JMR3927_IRQ_IOCINT	JMR3927_IRQ_IRC_INT1
 /* TC35815 100M Ether (JMR-TX3912:JPW4:2-3 Short) */
 #define JMR3927_IRQ_ETHER0	JMR3927_IRQ_IRC_INT3
-/* Clock Tick (10ms) */
-#define JMR3927_IRQ_TICK	JMR3927_IRQ_IRC_TMR0
 
 /* Clocks */
 #define JMR3927_CORECLK	132710400	/* 132.7MHz */
 #define JMR3927_GBUSCLK	(JMR3927_CORECLK / 2)	/* 66.35MHz */
 #define JMR3927_IMCLK	(JMR3927_CORECLK / 4)	/* 33.17MHz */
 
-#define jmr3927_tmrptr		tx3927_tmrptr(0)	/* TMR0 */
-
-
 /*
  * TX3927 Pin Configuration:
  *
diff --git a/include/asm-mips/jmr3927/tx3927.h b/include/asm-mips/jmr3927/tx3927.h
index 211bcf47fff..338f99882a3 100644
--- a/include/asm-mips/jmr3927/tx3927.h
+++ b/include/asm-mips/jmr3927/tx3927.h
@@ -222,9 +222,7 @@ struct tx3927_ccfg_reg {
 #define TX3927_IR_DMA	8
 #define TX3927_IR_PIO	9
 #define TX3927_IR_PCI	10
-#define TX3927_IR_TMR0	13
-#define TX3927_IR_TMR1	14
-#define TX3927_IR_TMR2	15
+#define TX3927_IR_TMR(ch)	(13 + (ch))
 #define TX3927_NUM_IR	16
 
 /*
diff --git a/include/asm-mips/jmr3927/txx927.h b/include/asm-mips/jmr3927/txx927.h
index 58a8ff6be81..0474fe8dac3 100644
--- a/include/asm-mips/jmr3927/txx927.h
+++ b/include/asm-mips/jmr3927/txx927.h
@@ -10,22 +10,6 @@
 #ifndef __ASM_TXX927_H
 #define __ASM_TXX927_H
 
-struct txx927_tmr_reg {
-	volatile unsigned long tcr;
-	volatile unsigned long tisr;
-	volatile unsigned long cpra;
-	volatile unsigned long cprb;
-	volatile unsigned long itmr;
-	volatile unsigned long unused0[3];
-	volatile unsigned long ccdr;
-	volatile unsigned long unused1[3];
-	volatile unsigned long pgmr;
-	volatile unsigned long unused2[3];
-	volatile unsigned long wtmr;
-	volatile unsigned long unused3[43];
-	volatile unsigned long trr;
-};
-
 struct txx927_sio_reg {
 	volatile unsigned long lcr;
 	volatile unsigned long dicr;
@@ -51,27 +35,6 @@ struct txx927_pio_reg {
 };
 
 /*
- * TMR
- */
-/* TMTCR : Timer Control */
-#define TXx927_TMTCR_TCE	0x00000080
-#define TXx927_TMTCR_CCDE	0x00000040
-#define TXx927_TMTCR_CRE	0x00000020
-#define TXx927_TMTCR_ECES	0x00000008
-#define TXx927_TMTCR_CCS	0x00000004
-#define TXx927_TMTCR_TMODE_MASK	0x00000003
-#define TXx927_TMTCR_TMODE_ITVL	0x00000000
-
-/* TMTISR : Timer Int. Status */
-#define TXx927_TMTISR_TPIBS	0x00000004
-#define TXx927_TMTISR_TPIAS	0x00000002
-#define TXx927_TMTISR_TIIS	0x00000001
-
-/* TMTITMR : Interval Timer Mode */
-#define TXx927_TMTITMR_TIIE	0x00008000
-#define TXx927_TMTITMR_TZCE	0x00000001
-
-/*
  * SIO
  */
 /* SILCR : Line Control */
diff --git a/include/asm-mips/tx4927/tx4927_pci.h b/include/asm-mips/tx4927/tx4927_pci.h
index f98b2bb719d..3f1e470192e 100644
--- a/include/asm-mips/tx4927/tx4927_pci.h
+++ b/include/asm-mips/tx4927/tx4927_pci.h
@@ -9,6 +9,7 @@
 #define __ASM_TX4927_TX4927_PCI_H
 
 #define TX4927_CCFG_TOE 0x00004000
+#define TX4927_CCFG_TINTDIS	0x01000000
 
 #define TX4927_PCIMEM      0x08000000
 #define TX4927_PCIMEM_SIZE 0x08000000
@@ -20,6 +21,8 @@
 #define TX4927_PCIC_REG         0xff1fd000
 #define TX4927_CCFG_REG         0xff1fe000
 #define TX4927_IRC_REG          0xff1ff600
+#define TX4927_NR_TMR	3
+#define TX4927_TMR_REG(ch)	(0xff1ff000 + (ch) * 0x100)
 #define TX4927_CE3      0x17f00000      /* 1M */
 #define TX4927_PCIRESET_ADDR    0xbc00f006
 #define TX4927_PCI_CLK_ADDR     (KSEG1 + TX4927_CE3 + 0x00040020)
diff --git a/include/asm-mips/tx4938/tx4938.h b/include/asm-mips/tx4938/tx4938.h
index 650b010761f..f7c448b9057 100644
--- a/include/asm-mips/tx4938/tx4938.h
+++ b/include/asm-mips/tx4938/tx4938.h
@@ -641,7 +641,6 @@ struct tx4938_ccfg_reg {
 #define tx4938_pcicptr		((struct tx4938_pcic_reg *)TX4938_PCIC_REG)
 #define tx4938_pcic1ptr		((struct tx4938_pcic_reg *)TX4938_PCIC1_REG)
 #define tx4938_ccfgptr		((struct tx4938_ccfg_reg *)TX4938_CCFG_REG)
-#define tx4938_tmrptr(ch)	((struct tx4938_tmr_reg *)TX4938_TMR_REG(ch))
 #define tx4938_sioptr(ch)	((struct tx4938_sio_reg *)TX4938_SIO_REG(ch))
 #define tx4938_pioptr		((struct tx4938_pio_reg *)TX4938_PIO_REG)
 #define tx4938_aclcptr		((struct tx4938_aclc_reg *)TX4938_ACLC_REG)
diff --git a/include/asm-mips/txx9tmr.h b/include/asm-mips/txx9tmr.h
new file mode 100644
index 00000000000..67f70a8f09b
--- /dev/null
+++ b/include/asm-mips/txx9tmr.h
@@ -0,0 +1,67 @@
+/*
+ * include/asm-mips/txx9tmr.h
+ * TX39/TX49 timer controller definitions.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef __ASM_TXX9TMR_H
+#define __ASM_TXX9TMR_H
+
+#include <linux/types.h>
+
+struct txx9_tmr_reg {
+	u32 tcr;
+	u32 tisr;
+	u32 cpra;
+	u32 cprb;
+	u32 itmr;
+	u32 unused0[3];
+	u32 ccdr;
+	u32 unused1[3];
+	u32 pgmr;
+	u32 unused2[3];
+	u32 wtmr;
+	u32 unused3[43];
+	u32 trr;
+};
+
+/* TMTCR : Timer Control */
+#define TXx9_TMTCR_TCE		0x00000080
+#define TXx9_TMTCR_CCDE		0x00000040
+#define TXx9_TMTCR_CRE		0x00000020
+#define TXx9_TMTCR_ECES		0x00000008
+#define TXx9_TMTCR_CCS		0x00000004
+#define TXx9_TMTCR_TMODE_MASK	0x00000003
+#define TXx9_TMTCR_TMODE_ITVL	0x00000000
+#define TXx9_TMTCR_TMODE_PGEN	0x00000001
+#define TXx9_TMTCR_TMODE_WDOG	0x00000002
+
+/* TMTISR : Timer Int. Status */
+#define TXx9_TMTISR_TPIBS	0x00000004
+#define TXx9_TMTISR_TPIAS	0x00000002
+#define TXx9_TMTISR_TIIS	0x00000001
+
+/* TMITMR : Interval Timer Mode */
+#define TXx9_TMITMR_TIIE	0x00008000
+#define TXx9_TMITMR_TZCE	0x00000001
+
+/* TMWTMR : Watchdog Timer Mode */
+#define TXx9_TMWTMR_TWIE	0x00008000
+#define TXx9_TMWTMR_WDIS	0x00000080
+#define TXx9_TMWTMR_TWC		0x00000001
+
+void txx9_clocksource_init(unsigned long baseaddr,
+			   unsigned int imbusclk);
+void txx9_clockevent_init(unsigned long baseaddr, int irq,
+			  unsigned int imbusclk);
+void txx9_tmr_init(unsigned long baseaddr);
+
+#ifdef CONFIG_CPU_TX39XX
+#define TXX9_TIMER_BITS	24
+#else
+#define TXX9_TIMER_BITS	32
+#endif
+
+#endif /* __ASM_TXX9TMR_H */