h8300: update timer handler - misc update

- Update selection
- Update common timer handler
- Add support functions

Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

4 files changed, 97 insertions, 83 deletions

diff --git a/arch/h8300/Kconfig.cpu b/arch/h8300/Kconfig.cpu
index 582797db9603..b65dcfe51d9c 100644
--- a/arch/h8300/Kconfig.cpu
+++ b/arch/h8300/Kconfig.cpu
@@ -1,5 +1,7 @@
 menu "Processor type and features"
 
+source "kernel/time/Kconfig"
+
 choice
         prompt "H8/300 platform"
         default H8300H_GENERIC
@@ -11,6 +13,7 @@ config H8300H_GENERIC
 
 config H8300H_AKI3068NET
         bool "AE-3068/69"
+        select CONFIG_H83068
         help
           AKI-H8/3068F / AKI-H8/3069F Flashmicom LAN Board Support
           More Information. (Japanese Only)
@@ -21,6 +24,7 @@ config H8300H_AKI3068NET
 
 config H8300H_H8MAX
         bool "H8MAX"
+        select CONFIG_H83068
         help
           H8MAX Evaluation Board Support
           More Information. (Japanese Only)
@@ -28,6 +32,7 @@ config H8300H_H8MAX
 
 config H8300H_SIM
         bool "H8/300H Simulator"
+        select CONFIG_H83007
         help
           GDB Simulator Support
           More Information.
@@ -40,6 +45,7 @@ config H8S_GENERIC
 
 config H8S_EDOSK2674
         bool "EDOSK-2674"
+        select CONFIG_H8S2768
         help
           Renesas EDOSK-2674 Evaluation Board Support
           More Information.
@@ -55,44 +61,37 @@ config H8S_SIM
 
 endchoice
 
-if (H8300H_GENERIC || H8S_GENERIC)
-menu "Detail Selection"
-if (H8300H_GENERIC)
 choice
         prompt "CPU Selection"
 
 config H83002
         bool "H8/3001,3002,3003"
+        select CPU_H8300H
 
 config H83007
         bool "H8/3006,3007"
+        select CPU_H8300H
 
 config H83048
         bool "H8/3044,3045,3046,3047,3048,3052"
+        select CPU_H8300H
 
 config H83068
         bool "H8/3065,3066,3067,3068,3069"
-endchoice
-endif
-
-if (H8S_GENERIC)
-choice
-        prompt "CPU Selection"
+        select CPU_H8300H
 
 config H8S2678
         bool "H8S/2670,2673,2674R,2675,2676"
+        select CPU_H8S
+
 endchoice
-endif
 
 config CPU_CLOCK
         int "CPU Clock Frequency (/1KHz)"
         default "20000"
         help
           CPU Clock Frequency divide to 1000
-endmenu
-endif
 
-if (H8300H_GENERIC || H8S_GENERIC || H8300H_SIM || H8S_SIM || H8S_EDOSK2674)
 choice
         prompt "Kernel executes from"
         ---help---
@@ -107,75 +106,61 @@ config ROMKERNEL
         bool "ROM"
         help
           The kernel will be resident in FLASH/ROM when running.
-
 endchoice
-endif
 
-if (H8300H_AKI3068NET)
-config H83068
-        bool
-        default y
 
-config CPU_CLOCK
-        int
-        default "20000"
-
-config RAMKERNEL
+config CPU_H8300H
         bool
+        depends on (H83002 || H83007 || H83048 || H83068)
         default y
-endif
 
-if (H8300H_H8MAX)
-config H83068
+config CPU_H8S
         bool
+        depends on H8S2678
         default y
 
-config CPU_CLOCK
-        int
-        default 25000
+choice
+        prompt "Timer"
+config H8300_TIMER8
+        bool "8bit timer (2ch cascade)"
+        depends on (H83007 || H83068 || H8S2678)
 
-config RAMKERNEL
-        bool
-        default y
-endif
+config H8300_TIMER16
+        bool "16bit timer"
+        depends on (H83007 || H83068)
 
-if (H8300H_SIM)
-config H83007
-        bool
-        default y
+config H8300_ITU
+        bool "ITU"
+        depends on (H83002 || H83048)
 
-config CPU_CLOCK
-        int
-        default "16000"
-endif
+config H8300_TPU
+        bool "TPU"
+        depends on H8S2678
+endchoice
 
-if (H8S_EDOSK2674)
-config H8S2678
-        bool
-        default y
-config CPU_CLOCK
-        int
-        default 33000
+if H8300_TIMER8
+choice
+        prompt "Timer Channel"
+config H8300_TIMER8_CH0
+        bool "Channel 0"
+config H8300_TIMER8_CH2
+        bool "Channel 2"
+        depends on CPU_H8300H
+endchoice
 endif
 
-if (H8S_SIM)
-config H8S2678
-        bool
-        default y
-config CPU_CLOCK
-        int
-        default 33000
-endif
+config H8300_TIMER16_CH
+        int "16bit timer channel (0 - 2)"
+        depends on H8300_TIMER16
+        range 0 2
 
-config CPU_H8300H
-        bool
-        depends on (H83002 || H83007 || H83048 || H83068)
-        default y
+config H8300_ITU_CH
+        int "ITU channel"
+        depends on H8300_ITU
 
-config CPU_H8S
-        bool
-        depends on H8S2678
-        default y
+config H8300_TPU_CH
+        int "TPU channel"
+        depends on H8300_TPU
 
 config PREEMPT
         bool "Preemptible Kernel"
diff --git a/arch/h8300/include/asm/io.h b/arch/h8300/include/asm/io.h
index 26dc6ccd9441..33e842f3284b 100644
--- a/arch/h8300/include/asm/io.h
+++ b/arch/h8300/include/asm/io.h
@@ -295,6 +295,40 @@ static __inline__ void ctrl_outl(unsigned long b, unsigned long addr)
         *(volatile unsigned long*)addr = b;
 }
 
+static __inline__ void ctrl_bclr(int b, unsigned long addr)
+{
+        if (__builtin_constant_p(b))
+                switch (b) {
+                case 0: __asm__("bclr #0,@%0"::"r"(addr)); break;
+                case 1: __asm__("bclr #1,@%0"::"r"(addr)); break;
+                case 2: __asm__("bclr #2,@%0"::"r"(addr)); break;
+                case 3: __asm__("bclr #3,@%0"::"r"(addr)); break;
+                case 4: __asm__("bclr #4,@%0"::"r"(addr)); break;
+                case 5: __asm__("bclr #5,@%0"::"r"(addr)); break;
+                case 6: __asm__("bclr #6,@%0"::"r"(addr)); break;
+                case 7: __asm__("bclr #7,@%0"::"r"(addr)); break;
+                }
+        else
+                __asm__("bclr %w0,@%1"::"r"(b), "r"(addr));
+}
+
+static __inline__ void ctrl_bset(int b, unsigned long addr)
+{
+        if (__builtin_constant_p(b))
+                switch (b) {
+                case 0: __asm__("bset #0,@%0"::"r"(addr)); break;
+                case 1: __asm__("bset #1,@%0"::"r"(addr)); break;
+                case 2: __asm__("bset #2,@%0"::"r"(addr)); break;
+                case 3: __asm__("bset #3,@%0"::"r"(addr)); break;
+                case 4: __asm__("bset #4,@%0"::"r"(addr)); break;
+                case 5: __asm__("bset #5,@%0"::"r"(addr)); break;
+                case 6: __asm__("bset #6,@%0"::"r"(addr)); break;
+                case 7: __asm__("bset #7,@%0"::"r"(addr)); break;
+                }
+        else
+                __asm__("bset %w0,@%1"::"r"(b), "r"(addr));
+}
+
 /* Pages to physical address... */
 #define page_to_phys(page)      ((page - mem_map) << PAGE_SHIFT)
 #define page_to_bus(page)       ((page - mem_map) << PAGE_SHIFT)
diff --git a/arch/h8300/kernel/Makefile b/arch/h8300/kernel/Makefile
index 6c248c3c5c3b..8d4d2a54be9e 100644
--- a/arch/h8300/kernel/Makefile
+++ b/arch/h8300/kernel/Makefile
@@ -7,6 +7,6 @@ extra-y := vmlinux.lds
 obj-y := process.o traps.o ptrace.o irq.o \
          sys_h8300.o time.o signal.o \
          setup.o gpio.o init_task.o syscalls.o \
-         entry.o
+         entry.o timer/
 
 obj-$(CONFIG_MODULES) += module.o h8300_ksyms.o 
diff --git a/arch/h8300/kernel/time.c b/arch/h8300/kernel/time.c
index e37c835e67cf..7f2d6cfbb4b6 100644
--- a/arch/h8300/kernel/time.c
+++ b/arch/h8300/kernel/time.c
@@ -27,27 +27,21 @@
 #include <linux/profile.h>
 
 #include <asm/io.h>
-#include <asm/target_time.h>
+#include <asm/timer.h>
 
 #define TICK_SIZE (tick_nsec / 1000)
 
-/*
- * timer_interrupt() needs to keep up the real-time clock,
- * as well as call the "do_timer()" routine every clocktick
- */
-static void timer_interrupt(int irq, void *dummy, struct pt_regs * regs)
+void h8300_timer_tick(void)
 {
-        /* may need to kick the hardware timer */
-        platform_timer_eoi();
-
+        if (current->pid)
+                profile_tick(CPU_PROFILING);
+        write_seqlock(&xtime_lock);
         do_timer(1);
-#ifndef CONFIG_SMP
-        update_process_times(user_mode(regs));
-#endif
-        profile_tick(CPU_PROFILING);
+        write_sequnlock(&xtime_lock);
+        update_process_times(user_mode(get_irq_regs()));
 }
 
-void time_init(void)
+void __init time_init(void)
 {
         unsigned int year, mon, day, hour, min, sec;
 
@@ -57,12 +51,13 @@ void time_init(void)
         year = 1980;
         mon = day = 1;
         hour = min = sec = 0;
-        platform_gettod (&year, &mon, &day, &hour, &min, &sec);
-
+#ifdef CONFIG_H8300_GETTOD
+        h8300_gettod (&year, &mon, &day, &hour, &min, &sec);
+#endif
         if ((year += 1900) < 1970)
                 year += 100;
         xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
         xtime.tv_nsec = 0;
 
-        platform_timer_setup(timer_interrupt);
+        h8300_timer_setup();
 }