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Added config options CFG_MONAHANS_RUN_MODE_OSC_RATIO and
CFG_MONAHANS_TURBO_RUN_MODE_RATIO for configuring the Monahans core
frequency.

Markus Klotzbuecher 19 gadi atpakaļ
vecāks
revīzija
40b0bafbb2
2 mainītis faili ar 22 papildinājumiem un 3 dzēšanām
  1. 15 2
      cpu/pxa/start.S
  2. 7 1
      include/configs/delta.h

+ 15 - 2
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]

+ 7 - 1
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 }