m68knommu: remove ColdFire CLOCK_DIV config option

The reality is that you do not need the abiltity to configure the
clock divider for ColdFire CPUs. It is a fixed ratio on any given
ColdFire family member. It is not the same for all ColdFire parts,
but it is always the same in a model range. So hard define the divider
for each supported ColdFire CPU type and remove the Kconfig option.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>

13 files changed, 15 insertions, 16 deletions

diff --git a/arch/m68k/include/asm/coldfire.h b/arch/m68k/include/asm/coldfire.h
index 98d1d25101f2..c94557b91448 100644
--- a/arch/m68k/include/asm/coldfire.h
+++ b/arch/m68k/include/asm/coldfire.h
@@ -14,14 +14,13 @@
 
 
 /*
- *      Define master clock frequency. This is essentially done at config
- *      time now. No point enumerating dozens of possible clock options
- *      here. Also the peripheral clock (bus clock) divide ratio is set
- *      at config time too.
+ *      Define master clock frequency. This is done at config time now.
+ *      No point enumerating dozens of possible clock options here. And
+ *      in any case new boards come along from time to time that have yet
+ *      another different clocking frequency.
  */
 #ifdef CONFIG_CLOCK_SET
 #define MCF_CLK         CONFIG_CLOCK_FREQ
-#define MCF_BUSCLK      (CONFIG_CLOCK_FREQ / CONFIG_CLOCK_DIV)
 #else
 #error "Don't know what your ColdFire CPU clock frequency is??"
 #endif
diff --git a/arch/m68k/include/asm/m5206sim.h b/arch/m68k/include/asm/m5206sim.h
index dfd6d3f73584..9015eadd5c00 100644
--- a/arch/m68k/include/asm/m5206sim.h
+++ b/arch/m68k/include/asm/m5206sim.h
@@ -14,6 +14,7 @@
 
 #define CPU_NAME                "COLDFIRE(m5206)"
 #define CPU_INSTR_PER_JIFFY     3
+#define MCF_BUSCLK              MCF_CLK
 
 #include <asm/m52xxacr.h>
 
diff --git a/arch/m68k/include/asm/m520xsim.h b/arch/m68k/include/asm/m520xsim.h
index 87f8ce73b318..ee89801eec9d 100644
--- a/arch/m68k/include/asm/m520xsim.h
+++ b/arch/m68k/include/asm/m520xsim.h
@@ -13,6 +13,7 @@
 
 #define CPU_NAME                "COLDFIRE(m520x)"
 #define CPU_INSTR_PER_JIFFY     3
+#define MCF_BUSCLK              (MCF_CLK / 2)
 
 #include <asm/m52xxacr.h>
 
diff --git a/arch/m68k/include/asm/m523xsim.h b/arch/m68k/include/asm/m523xsim.h
index 3f3dbf01a109..3852f074fddd 100644
--- a/arch/m68k/include/asm/m523xsim.h
+++ b/arch/m68k/include/asm/m523xsim.h
@@ -13,6 +13,7 @@
 
 #define CPU_NAME                "COLDFIRE(m523x)"
 #define CPU_INSTR_PER_JIFFY     3
+#define MCF_BUSCLK              (MCF_CLK / 2)
 
 #include <asm/m52xxacr.h>
 
diff --git a/arch/m68k/include/asm/m5249sim.h b/arch/m68k/include/asm/m5249sim.h
index 33b0b4df07ca..805714ca8d7d 100644
--- a/arch/m68k/include/asm/m5249sim.h
+++ b/arch/m68k/include/asm/m5249sim.h
@@ -13,6 +13,7 @@
 
 #define CPU_NAME                "COLDFIRE(m5249)"
 #define CPU_INSTR_PER_JIFFY     3
+#define MCF_BUSCLK              (MCF_CLK / 2)
 
 #include <asm/m52xxacr.h>
 
diff --git a/arch/m68k/include/asm/m5272sim.h b/arch/m68k/include/asm/m5272sim.h
index 57ca4de1f911..759c2b07a994 100644
--- a/arch/m68k/include/asm/m5272sim.h
+++ b/arch/m68k/include/asm/m5272sim.h
@@ -14,6 +14,7 @@
 
 #define CPU_NAME                "COLDFIRE(m5272)"
 #define CPU_INSTR_PER_JIFFY     3
+#define MCF_BUSCLK              MCF_CLK
 
 #include <asm/m52xxacr.h>
 
diff --git a/arch/m68k/include/asm/m527xsim.h b/arch/m68k/include/asm/m527xsim.h
index 838fb2b1e88b..c23046ee3a51 100644
--- a/arch/m68k/include/asm/m527xsim.h
+++ b/arch/m68k/include/asm/m527xsim.h
@@ -13,6 +13,7 @@
 
 #define CPU_NAME                "COLDFIRE(m527x)"
 #define CPU_INSTR_PER_JIFFY     3
+#define MCF_BUSCLK              (MCF_CLK / 2)
 
 #include <asm/m52xxacr.h>
 
diff --git a/arch/m68k/include/asm/m528xsim.h b/arch/m68k/include/asm/m528xsim.h
index 47324f2258a7..d798bd5df56c 100644
--- a/arch/m68k/include/asm/m528xsim.h
+++ b/arch/m68k/include/asm/m528xsim.h
@@ -13,6 +13,7 @@
 
 #define CPU_NAME                "COLDFIRE(m528x)"
 #define CPU_INSTR_PER_JIFFY     3
+#define MCF_BUSCLK              MCF_CLK
 
 #include <asm/m52xxacr.h>
 
diff --git a/arch/m68k/include/asm/m5307sim.h b/arch/m68k/include/asm/m5307sim.h
index e4365f2e5c29..4c94c01f36c4 100644
--- a/arch/m68k/include/asm/m5307sim.h
+++ b/arch/m68k/include/asm/m5307sim.h
@@ -16,6 +16,7 @@
 
 #define CPU_NAME                "COLDFIRE(m5307)"
 #define CPU_INSTR_PER_JIFFY     3
+#define MCF_BUSCLK              (MCF_CLK / 2)
 
 #include <asm/m53xxacr.h>
 
diff --git a/arch/m68k/include/asm/m532xsim.h b/arch/m68k/include/asm/m532xsim.h
index 0dea126f3fcf..ba4cc784f574 100644
--- a/arch/m68k/include/asm/m532xsim.h
+++ b/arch/m68k/include/asm/m532xsim.h
@@ -11,6 +11,7 @@
 
 #define CPU_NAME                "COLDFIRE(m532x)"
 #define CPU_INSTR_PER_JIFFY     3
+#define MCF_BUSCLK              (MCF_CLK / 3)
 
 #include <asm/m53xxacr.h>
 
diff --git a/arch/m68k/include/asm/m5407sim.h b/arch/m68k/include/asm/m5407sim.h
index c1eba01d26b0..762c58c89050 100644
--- a/arch/m68k/include/asm/m5407sim.h
+++ b/arch/m68k/include/asm/m5407sim.h
@@ -16,6 +16,7 @@
 
 #define CPU_NAME                "COLDFIRE(m5407)"
 #define CPU_INSTR_PER_JIFFY     3
+#define MCF_BUSCLK              (MCF_CLK / 2)
 
 #include <asm/m54xxacr.h>
 
diff --git a/arch/m68k/include/asm/m54xxsim.h b/arch/m68k/include/asm/m54xxsim.h
index cc5d94d215b4..daaae276bb09 100644
--- a/arch/m68k/include/asm/m54xxsim.h
+++ b/arch/m68k/include/asm/m54xxsim.h
@@ -7,6 +7,7 @@
 
 #define CPU_NAME                "COLDFIRE(m54xx)"
 #define CPU_INSTR_PER_JIFFY     2
+#define MCF_BUSCLK              (MCF_CLK / 2)
 
 #include <asm/m54xxacr.h>
 
diff --git a/arch/m68knommu/Kconfig b/arch/m68knommu/Kconfig
index 2e6fe63b7a0f..b5424cf948e6 100644
--- a/arch/m68knommu/Kconfig
+++ b/arch/m68knommu/Kconfig
@@ -260,17 +260,6 @@ config CLOCK_FREQ
           if it is fitted (there are some exceptions). This value will be
           specific to the exact CPU that you are using.
 
-config CLOCK_DIV
-        int "Set the core/bus clock divide ratio"
-        default "1"
-        depends on CLOCK_SET
-        help
-          On many SoC style CPUs the master CPU clock is also used to drive 
-          on-chip peripherals. The clock that is distributed to these
-          peripherals is sometimes a fixed ratio of the master clock
-          frequency. If so then set this to the divider ratio of the
-          master clock to the peripheral clock. If not sure then select 1.
-
 config OLDMASK
         bool "Old mask 5307 (1H55J) silicon"
         depends on M5307