iPod G3: Clock setup register display and CPU clock estimation in debug menu. * Fix clock being set to only half of what it should be (introduced with clock setup changes for PP502x).

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13844 a1c6a512-1295-4272-9138-f99709370657

3 files changed, 37 insertions, 5 deletions

diff --git a/apps/debug_menu.c b/apps/debug_menu.c
index 691bbf9..eff8def 100644
--- a/apps/debug_menu.c
+++ b/apps/debug_menu.c
@@ -405,7 +405,7 @@ static bool dbg_flash_id(unsigned* p_manufacturer, unsigned* p_device,
 #endif /* (CONFIG_CPU == SH7034 || CPU_COLDFIRE) */
 
 #ifndef SIMULATOR
-#ifdef CPU_PP502x
+#ifdef CPU_PP
 static int perfcheck(void)
 {
     int result;
@@ -427,7 +427,13 @@ static int perfcheck(void)
         [res]"=&r"(result)
         :
         [timr]"r"(&USEC_TIMER),
-        [tmo]"r"(10226)
+        [tmo]"r"(
+#if CONFIG_CPU == PP5002
+        16000
+#else /* PP5020/5022/5024 */
+        10226
+#endif
+        )
         :
         "r0", "r1", "r2"
     );
@@ -586,7 +592,7 @@ static bool dbg_hw_info(void)
 
     snprintf(buf, sizeof(buf), "Est. clock (kHz): %d", perfcheck());
     lcd_puts(0, 3, buf);
-    
+
     lcd_update();
 
     while(1)
@@ -1181,6 +1187,23 @@ bool dbg_ports(void)
         snprintf(buf, sizeof(buf), "GPIO_C: %02x GPIO_D: %02x", gpio_c, gpio_d);
         lcd_puts(0, line++, buf);
 
+        snprintf(buf, sizeof(buf), "CLOCK_ENABLE: %08lx", CLOCK_ENABLE);
+        lcd_puts(0, line++, buf);
+        snprintf(buf, sizeof(buf), "CLOCK_SOURCE: %08lx", CLOCK_SOURCE);
+        lcd_puts(0, line++, buf);
+        snprintf(buf, sizeof(buf), "CLOCK_DIV:    %08lx", CLOCK_DIV);
+        lcd_puts(0, line++, buf);
+        snprintf(buf, sizeof(buf), "PLL_DIV:      %08lx", PLL_DIV);
+        lcd_puts(0, line++, buf);
+        snprintf(buf, sizeof(buf), "PLL_MULT:     %08lx", PLL_MULT);
+        lcd_puts(0, line++, buf);
+        snprintf(buf, sizeof(buf), "TIMING1_CTL:  %08lx", TIMING1_CTL);
+        lcd_puts(0, line++, buf);
+        snprintf(buf, sizeof(buf), "TIMING2_CTL:  %08lx", TIMING2_CTL);
+        lcd_puts(0, line++, buf);
+        snprintf(buf, sizeof(buf), "Est. clock (kHz): %d", perfcheck());
+        lcd_puts(0, line++, buf);
+
         lcd_update();
         if (button_get_w_tmo(HZ/10) == (DEBUG_CANCEL|BUTTON_REL))
             return false;
diff --git a/firmware/export/pp5002.h b/firmware/export/pp5002.h
index 9636313..0610da8 100644
--- a/firmware/export/pp5002.h
+++ b/firmware/export/pp5002.h
@@ -116,6 +116,15 @@
 #define SER1_MASK    (1 << SER1_IRQ)
 #define DMA_OUT_MASK (1 << DMA_OUT_IRQ)
 
+#define TIMING1_CTL         (*(volatile unsigned long*)(0xcf004000))
+#define TIMING2_CTL         (*(volatile unsigned long*)(0xcf004008))
+
+#define CLOCK_ENABLE        (*(volatile unsigned long*)(0xcf005008))
+#define CLOCK_SOURCE        (*(volatile unsigned long*)(0xcf00500c))
+#define CLOCK_DIV           (*(volatile unsigned long*)(0xcf005010))
+#define PLL_DIV             (*(volatile unsigned long*)(0xcf005018))
+#define PLL_MULT            (*(volatile unsigned long*)(0xcf00501c))
+
 #define MMAP0_LOGICAL       (*(volatile unsigned long*)(0xf000f000))
 #define MMAP0_PHYSICAL      (*(volatile unsigned long*)(0xf000f004))
 #define MMAP1_LOGICAL       (*(volatile unsigned long*)(0xf000f008))
diff --git a/firmware/target/arm/system-pp5002.c b/firmware/target/arm/system-pp5002.c
index 20f68cc..e8410df 100644
--- a/firmware/target/arm/system-pp5002.c
+++ b/firmware/target/arm/system-pp5002.c
@@ -100,8 +100,8 @@ void set_cpu_frequency(long frequency)
         outl(0x55, 0xcf00500c);
         outl(0x6000, 0xcf005010);
 
-        /* Clock frequency = (24/8)*postmult */
-        outl(8, 0xcf005018);
+        /* Clock frequency = (24/4)*postmult */
+        outl(4, 0xcf005018);
         outl(postmult, 0xcf00501c);
 
         outl(0xe000, 0xcf005010);