Fix hang on boot in OMAP3 HAL

Detail:
  PRCM.s - This file missed my checkin last night. Contains some rather important code that was moved there from USB.s, for initialising DPLL5.
Admin:
  Tested on rev C2 beagleboard. HAL code in CVS should now match what's on my machine!


Version 0.20. Tagged as 'OMAP3-0_20'

VersionASM

@@ -11,13 +11,13 @@
                         GBLS    Module_HelpVersion
                         GBLS    Module_ComponentName
                         GBLS    Module_ComponentPath
-Module_MajorVersion     SETS    "0.19"
-Module_Version          SETA    19
+Module_MajorVersion     SETS    "0.20"
+Module_Version          SETA    20
 Module_MinorVersion     SETS    ""
 Module_Date             SETS    "24 Jan 2010"
 Module_ApplicationDate  SETS    "24-Jan-10"
 Module_ComponentName    SETS    "OMAP3"
 Module_ComponentPath    SETS    "castle/RiscOS/Sources/HAL/OMAP3"
-Module_FullVersion      SETS    "0.19"
-Module_HelpVersion      SETS    "0.19 (24 Jan 2010)"
+Module_FullVersion      SETS    "0.20"
+Module_HelpVersion      SETS    "0.20 (24 Jan 2010)"
                         END

VersionNum

-/* (0.19)
+/* (0.20)
  *
  * This file is automatically maintained by srccommit, do not edit manually.
  * Last processed by srccommit version: 1.1.
  *
  */
-#define Module_MajorVersion_CMHG        0.19
+#define Module_MajorVersion_CMHG        0.20
 #define Module_MinorVersion_CMHG        
 #define Module_Date_CMHG                24 Jan 2010
 
-#define Module_MajorVersion             "0.19"
-#define Module_Version                  19
+#define Module_MajorVersion             "0.20"
+#define Module_Version                  20
 #define Module_MinorVersion             ""
 #define Module_Date                     "24 Jan 2010"
 
@@ -18,6 +18,6 @@
 #define Module_ComponentName            "OMAP3"
 #define Module_ComponentPath            "castle/RiscOS/Sources/HAL/OMAP3"
 
-#define Module_FullVersion              "0.19"
-#define Module_HelpVersion              "0.19 (24 Jan 2010)"
-#define Module_LibraryVersionInfo       "0:19"
+#define Module_FullVersion              "0.20"
+#define Module_HelpVersion              "0.20 (24 Jan 2010)"
+#define Module_LibraryVersionInfo       "0:20"

s/PRCM

@@ -91,6 +91,29 @@ PRCM_SetClocks
         MOVEQ   v3, v3, LSR #1
         STR     a4, sys_clk
         STR     v3, Timer_DelayMul
+        ; Use the sys_clk value to configure DPLL5 to generate a 120MHz clock
+        ; sys_clk should be either 12MHz, 13MHz, or 19.2MHz
+        CMP     v3, #130 ; DelayMul is an easy value to compare against
+        LDR     a1, L4_ClockMan_Log
+        MOVNE   a2, #11 ; 12MHz -> 1MHz, 19.2MHz -> 1.6MHz
+        MOVEQ   a2, #12 ; 13MHz -> 1MHz
+        LDR     a3, =CM_CLKSEL4_PLL
+        ORRLE   a2, a2, #120:SHL:8 ; 1MHz -> 120MHz
+        ORRGT   a2, a2, #75:SHL:8 ; 1.6MHz -> 120MHz
+        STR     a2, [a1, a3]
+        LDR     a3, =CM_CLKSEL5_PLL
+        MOV     a2, #1 ; Divide by 1
+        STR     a2, [a1, a3]
+        LDR     a3, =CM_CLKEN2_PLL
+        MOVLE   a2, #&37 ; Fint=1MHz, FREQSEL=3
+        MOVGT   a2, #&67 ; Fint=1.6MHz, FREQSEL=6
+        STR     a2, [a1, a3]
+        ; Wait for lock
+5
+        LDR     a3, =CM_IDLEST2_CKGEN
+        LDR     a2, [a1, a3]
+        TST     a2, #1
+        BEQ     %BT5
         Pull    "v1-v4,pc"
 
 PRCM_GetFreqSel