1 files changed, 23 insertions, 119 deletions

diff --git a/firmware/target/arm/system-target.h b/firmware/target/arm/system-target.h
index ceb8be2079..2b72e9293e 100644
--- a/firmware/target/arm/system-target.h
+++ b/firmware/target/arm/system-target.h
@@ -8,6 +8,7 @@
  * $Id$
  *
  * Copyright (C) 2002 by Alan Korr
+ * Copyright (C) 2007 by Michael Sevakis
  *
  * All files in this archive are subject to the GNU General Public License.
  * See the file COPYING in the source tree root for full license agreement.
@@ -19,137 +20,40 @@
 #ifndef SYSTEM_TARGET_H
 #define SYSTEM_TARGET_H
 
-#define nop \
-  asm volatile ("nop")
+#include "system-arm.h"
 
-/* This gets too complicated otherwise with all the ARM variation and would
-   have conflicts with another system-target.h elsewhere so include a
-   subheader from here. */
+#define inl(a) (*(volatile unsigned long *) (a))
+#define outl(a,b) (*(volatile unsigned long *) (b) = (a))
+#define inb(a) (*(volatile unsigned char *) (a))
+#define outb(a,b) (*(volatile unsigned char *) (b) = (a))
+#define inw(a) (*(volatile unsigned short *) (a))
+#define outw(a,b) (*(volatile unsigned short *) (b) = (a))
+extern unsigned int ipod_hw_rev;
 
-#ifdef CPU_PP
-#include "system-pp.h"
-#elif CONFIG_CPU == S3C2440
-#include "system-meg-fx.h"
-#endif
-
-/* TODO: Implement set_irq_level and check CPU frequencies */
-
-#if CONFIG_CPU == S3C2440
-
-#define CPUFREQ_DEFAULT 98784000
-#define CPUFREQ_NORMAL  98784000
-#define CPUFREQ_MAX    296352000
-
-#elif CONFIG_CPU == PNX0101
-
-#define CPUFREQ_DEFAULT 12000000
-#define CPUFREQ_NORMAL  48000000
-#define CPUFREQ_MAX     60000000
-
-#else
-
-#define CPUFREQ_DEFAULT_MULT 8
-#define CPUFREQ_DEFAULT 24000000
-#define CPUFREQ_NORMAL_MULT 10
-#define CPUFREQ_NORMAL 30000000
-#define CPUFREQ_MAX_MULT 25
-#define CPUFREQ_MAX 75000000
-
-#endif
-
-static inline uint16_t swap16(uint16_t value)
-    /*
-      result[15..8] = value[ 7..0];
-      result[ 7..0] = value[15..8];
-    */
+static inline void udelay(unsigned usecs)
 {
-    return (value >> 8) | (value << 8);
+    unsigned stop = USEC_TIMER + usecs;
+    while (TIME_BEFORE(USEC_TIMER, stop));
 }
 
-static inline uint32_t swap32(uint32_t value)
-    /*
-      result[31..24] = value[ 7.. 0];
-      result[23..16] = value[15.. 8];
-      result[15.. 8] = value[23..16];
-      result[ 7.. 0] = value[31..24];
-    */
-{
-    uint32_t tmp;
+unsigned int current_core(void);
 
-    asm volatile (
-        "eor %1, %0, %0, ror #16 \n\t"
-        "bic %1, %1, #0xff0000   \n\t"
-        "mov %0, %0, ror #8      \n\t"
-        "eor %0, %0, %1, lsr #8  \n\t"
-        : "+r" (value), "=r" (tmp)
-    );
-    return value;
-}
+#if CONFIG_CPU != PP5002
 
-static inline uint32_t swap_odd_even32(uint32_t value)
+#define HAVE_INVALIDATE_ICACHE
+static inline void invalidate_icache(void)
 {
-    /*
-      result[31..24],[15.. 8] = value[23..16],[ 7.. 0]
-      result[23..16],[ 7.. 0] = value[31..24],[15.. 8]
-    */
-    uint32_t tmp;
-
-    asm volatile (                    /* ABCD      */
-        "bic %1, %0, #0x00ff00  \n\t" /* AB.D      */
-        "bic %0, %0, #0xff0000  \n\t" /* A.CD      */
-        "mov %0, %0, lsr #8     \n\t" /* .A.C      */
-        "orr %0, %0, %1, lsl #8 \n\t" /* B.D.|.A.C */
-        : "+r" (value), "=r" (tmp)    /* BADC      */
-    );
-    return value;
+    outl(inl(0xf000f044) | 0x6, 0xf000f044);
+    while ((CACHE_CTL & 0x8000) != 0);
 }
 
-#define HIGHEST_IRQ_LEVEL (1)
-
-static inline int set_irq_level(int level)
-{
-    unsigned long cpsr;
-    /* Read the old level and set the new one */
-    asm volatile ("mrs %0,cpsr" : "=r" (cpsr));
-    asm volatile ("msr cpsr_c,%0"
-                  : : "r" ((cpsr & ~0x80) | (level << 7)));
-    return (cpsr >> 7) & 1;
-}
-
-static inline void set_fiq_handler(void(*fiq_handler)(void))
+#define HAVE_FLUSH_ICACHE
+static inline void flush_icache(void)
 {
-    /* Install the FIQ handler */
-    *((unsigned int*)(15*4)) = (unsigned int)fiq_handler;
+    outl(inl(0xf000f044) | 0x2, 0xf000f044);
+    while ((CACHE_CTL & 0x8000) != 0);
 }
 
-static inline void enable_fiq(void)
-{
-    /* Clear FIQ disable bit */
-    asm volatile (
-        "mrs     r0, cpsr         \n"\
-        "bic     r0, r0, #0x40    \n"\
-        "msr     cpsr_c, r0         "
-        : : : "r0"
-    );
-}
-
-static inline void disable_fiq(void)
-{
-    /* Set FIQ disable bit */
-    asm volatile (
-        "mrs     r0, cpsr         \n"\
-        "orr     r0, r0, #0x40    \n"\
-        "msr     cpsr_c, r0         "
-        : : : "r0"
-    );
-}
-
-#if CONFIG_CPU == PNX0101
-typedef void (*interrupt_handler_t)(void);
-
-void irq_set_int_handler(int n, interrupt_handler_t handler);
-void irq_enable_int(int n);
-void irq_disable_int(int n);
-#endif
+#endif /* CONFIG_CPU */
 
 #endif /* SYSTEM_TARGET_H */