Added config options CFG_MONAHANS_RUN_MODE_OSC_RATIO and

CFG_MONAHANS_TURBO_RUN_MODE_RATIO for configuring the Monahans core
frequency.

diff --git a/cpu/pxa/start.S b/cpu/pxa/start.S
index 9541c9b..ffaa30f 100644 (file)
--- a/cpu/pxa/start.S
+++ b/cpu/pxa/start.S
@@ -190,6 +190,14 @@ OSTIMER_BASE:      .word   0x40a00000
 #define OIER   0x1C
 
 /* Clock Manager Registers                                                 */
+#ifdef CONFIG_CPU_MONAHANS
+# ifndef CFG_MONAHANS_RUN_MODE_OSC_RATIO
+#  error "You have to define CFG_MONAHANS_RUN_MODE_OSC_RATIO!!"
+# endif
+# ifndef CFG_MONAHANS_TURBO_RUN_MODE_RATIO
+#  define CFG_MONAHANS_TURBO_RUN_MODE_RATIO 0x1
+# endif
+#else /* ! CONFIG_CPU_MONAHANS */
 #ifdef CFG_CPUSPEED
 CC_BASE:       .word   0x41300000
 #define CCCR   0x00
@@ -197,6 +205,7 @@ cpuspeed:   .word   CFG_CPUSPEED
 #else
 #error "You have to define CFG_CPUSPEED!!"
 #endif
+#endif /* CONFIG_CPU_MONAHANS */
 
        /* takes care the CP15 update has taken place */
        .macro CPWAIT reg
@@ -233,9 +242,13 @@ cpu_init_crit:
        str     r2, [r1]
 #endif
 
-#ifndef CONFIG_CPU_MONAHANS
+       /* set clock speed */
+#ifdef CONFIG_CPU_MONAHANS
+       ldr     r0, =ACCR
+       ldr     r1, =(((CFG_MONAHANS_TURBO_RUN_MODE_RATIO<<8) & ACCR_XN_MASK) | (CFG_MONAHANS_RUN_MODE_OSC_RATIO & ACCR_XL_MASK))
+       str     r1, [r0]
+#else /* ! CONFIG_CPU_MONAHANS */
 #ifdef CFG_CPUSPEED
-       /* set clock speed tbd@mk: required for monahans? */
        ldr     r0, CC_BASE
        ldr     r1, cpuspeed
        str     r1, [r0, #CCCR]

diff --git a/include/configs/delta.h b/include/configs/delta.h
index eaa4c43..776ee15 100644 (file)
--- a/include/configs/delta.h
+++ b/include/configs/delta.h
@@ -132,7 +132,13 @@
 #define CFG_LOAD_ADDR  (CFG_DRAM_BASE + 0x8000) /* default load address */
 
 #define CFG_HZ                 3250000         /* incrementer freq: 3.25 MHz */
-#define CFG_CPUSPEED           0x161           /* set core clock to 400/200/100 MHz */
+
+/* Monahans Core Frequency = 
+ * 
+ */
+#define CFG_MONAHANS_RUN_MODE_OSC_RATIO                16 /* valid values: 8, 16, 24, 31 */
+#define CFG_MONAHANS_TURBO_RUN_MODE_RATIO      1  /* valid values: 1, 2 */
+
 
                                                /* valid baudrates */
 #define CFG_BAUDRATE_TABLE     { 9600, 19200, 38400, 57600, 115200 }