Blackfin arch: Fix CCLK and SCLK checks

Fix CCLK and SCLK checks, combine all arch checks into one file
for maintance. Checkins that remove more lines than they add are always
good.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

1 files changed, 113 insertions, 62 deletions

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 5c1e215c8b6f..9ce675e80260 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -323,7 +323,7 @@ config CMDLINE
           to the kernel, you may specify one here. As a minimum, you should specify
           the memory size and the root device (e.g., mem=8M, root=/dev/nfs).
 
-comment "Board Setup"
+comment "Clock/PLL Setup"
 
 config CLKIN_HZ
         int "Crystal Frequency in Hz"
@@ -335,6 +335,118 @@ config CLKIN_HZ
         help
           The frequency of CLKIN crystal oscillator on the board in Hz.
 
+config BFIN_KERNEL_CLOCK
+        bool "Re-program Clocks while Kernel boots?"
+        default n
+        help
+          This option decides if kernel clocks are re-programed from the
+          bootloader settings. If the clocks are not set, the SDRAM settings
+          are also not changed, and the Bootloader does 100% of the hardware
+          configuration.
+
+config PLL_BYPASS
+        bool "Bypass PLL"
+        depends on BFIN_KERNEL_CLOCK
+        default n
+
+config CLKIN_HALF
+        bool "Half Clock In"
+        depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS)
+        default n
+        help
+          If this is set the clock will be divided by 2, before it goes to the PLL.
+
+config VCO_MULT
+        int "VCO Multiplier"
+        depends on BFIN_KERNEL_CLOCK && (! PLL_BYPASS)
+        range 1 64
+        default "22" if BFIN533_EZKIT
+        default "45" if BFIN533_STAMP
+        default "20" if BFIN537_STAMP
+        default "22" if BFIN533_BLUETECHNIX_CM
+        default "20" if BFIN537_BLUETECHNIX_CM
+        default "20" if BFIN561_BLUETECHNIX_CM
+        default "20" if BFIN561_EZKIT
+        help
+          This controls the frequency of the on-chip PLL. This can be between 1 and 64.
+          PLL Frequency = (Crystal Frequency) * (this setting)
+
+choice
+        prompt "Core Clock Divider"
+        depends on BFIN_KERNEL_CLOCK
+        default CCLK_DIV_1
+        help
+          This sets the frequency of the core. It can be 1, 2, 4 or 8
+          Core Frequency = (PLL frequency) / (this setting)
+
+config CCLK_DIV_1
+        bool "1"
+
+config CCLK_DIV_2
+        bool "2"
+
+config CCLK_DIV_4
+        bool "4"
+
+config CCLK_DIV_8
+        bool "8"
+endchoice
+
+config SCLK_DIV
+        int "System Clock Divider"
+        depends on BFIN_KERNEL_CLOCK
+        range 1 15
+        default 5 if BFIN533_EZKIT
+        default 5 if BFIN533_STAMP
+        default 4 if BFIN537_STAMP
+        default 5 if BFIN533_BLUETECHNIX_CM
+        default 4 if BFIN537_BLUETECHNIX_CM
+        default 4 if BFIN561_BLUETECHNIX_CM
+        default 5 if BFIN561_EZKIT
+        help
+          This sets the frequency of the system clock (including SDRAM or DDR).
+          This can be between 1 and 15
+          System Clock = (PLL frequency) / (this setting)
+
+#
+# Max & Min Speeds for various Chips
+#
+config MAX_VCO_HZ
+        int
+        default 600000000 if BF522
+        default 600000000 if BF525
+        default 600000000 if BF527
+        default 400000000 if BF531
+        default 400000000 if BF532
+        default 750000000 if BF533
+        default 500000000 if BF534
+        default 400000000 if BF536
+        default 600000000 if BF537
+        default 533000000 if BF538
+        default 533000000 if BF539
+        default 600000000 if BF542
+        default 533000000 if BF544
+        default 533000000 if BF549
+        default 600000000 if BF561
+
+config MIN_VCO_HZ
+        int
+        default 50000000
+
+config MAX_SCLK_HZ
+        int
+        default 133000000
+
+config MIN_SCLK_HZ
+        int
+        default 27000000
+
+comment "Kernel Timer/Scheduler"
+
+source kernel/Kconfig.hz
+
+comment "Memory Setup"
+
 config MEM_SIZE
         int "SDRAM Memory Size in MBytes"
         default  32 if BFIN533_EZKIT
@@ -448,10 +560,6 @@ endmenu
 
 menu "Blackfin Kernel Optimizations"
 
-comment "Timer Tick"
-
-source kernel/Kconfig.hz
-
 comment "Memory Optimizations"
 
 config I_ENTRY_L1
@@ -672,63 +780,6 @@ config L1_MAX_PIECE
           Set the max memory pieces for the L1 SRAM allocation algorithm.
           Min value is 16. Max value is 1024.
 
-menu "Clock Settings"
-
-
-config BFIN_KERNEL_CLOCK
-        bool "Re-program Clocks while Kernel boots?"
-        default n
-        help
-          This option decides if kernel clocks are re-programed from the
-          bootloader settings. If the clocks are not set, the SDRAM settings
-          are also not changed, and the Bootloader does 100% of the hardware
-          configuration.
-
-config VCO_MULT
-        int "VCO Multiplier"
-        depends on BFIN_KERNEL_CLOCK
-        default "22" if BFIN533_EZKIT
-        default "45" if BFIN533_STAMP
-        default "20" if BFIN537_STAMP
-        default "22" if BFIN533_BLUETECHNIX_CM
-        default "20" if BFIN537_BLUETECHNIX_CM
-        default "20" if BFIN561_BLUETECHNIX_CM
-        default "20" if BFIN561_EZKIT
-
-config CCLK_DIV
-        int "Core Clock Divider"
-        depends on BFIN_KERNEL_CLOCK
-        default 1 if BFIN533_EZKIT
-        default 1 if BFIN533_STAMP
-        default 1 if BFIN537_STAMP
-        default 1 if BFIN533_BLUETECHNIX_CM
-        default 1 if BFIN537_BLUETECHNIX_CM
-        default 1 if BFIN561_BLUETECHNIX_CM
-        default 1 if BFIN561_EZKIT
-
-config SCLK_DIV
-        int "System Clock Divider"
-        depends on BFIN_KERNEL_CLOCK
-        default 5 if BFIN533_EZKIT
-        default 5 if BFIN533_STAMP
-        default 4 if BFIN537_STAMP
-        default 5 if BFIN533_BLUETECHNIX_CM
-        default 4 if BFIN537_BLUETECHNIX_CM
-        default 4 if BFIN561_BLUETECHNIX_CM
-        default 5 if BFIN561_EZKIT
-
-config CLKIN_HALF
-        bool "Half ClockIn"
-        depends on BFIN_KERNEL_CLOCK
-        default n
-
-config PLL_BYPASS
-        bool "Bypass PLL"
-        depends on BFIN_KERNEL_CLOCK
-        default n
-
-endmenu
-
 comment "Asynchonous Memory Configuration"
 
 menu "EBIU_AMBCTL Global Control"