Add ARM946E cpu and core module targets; remap memory to 0x00000000

[u-boot] / cpu / arm926ejs / cpu.c

diff --git a/cpu/arm926ejs/cpu.c b/cpu/arm926ejs/cpu.c
index 2681f999c1112f7ea6349d7524910f221a37a4e8..f57c5a5d89513098a39a86044cf2ab987388bbae 100644 (file)
--- a/cpu/arm926ejs/cpu.c
+++ b/cpu/arm926ejs/cpu.c
@@ -69,21 +69,21 @@ static void cp_delay (void)
 {
        volatile int i;
 
-       /* Many OMAP regs need at least 2 nops  */
+       /* copro seems to need some delay between reading and writing */
        for (i = 0; i < 100; i++);
 }
 
-/* See also ARM Ref. Man. */
+/* See also ARM926EJ-S Technical Reference Manual */
 #define C1_MMU         (1<<0)          /* mmu off/on */
 #define C1_ALIGN       (1<<1)          /* alignment faults off/on */
 #define C1_DC          (1<<2)          /* dcache off/on */
-#define C1_WB          (1<<3)          /* merging write buffer on/off */
-#define C1_BIG_ENDIAN  (1<<7)  /* big endian off/on */
+
+#define C1_BIG_ENDIAN  (1<<7)          /* big endian off/on */
 #define C1_SYS_PROT    (1<<8)          /* system protection */
 #define C1_ROM_PROT    (1<<9)          /* ROM protection */
 #define C1_IC          (1<<12)         /* icache off/on */
-#define C1_HIGH_VECTORS        (1<<13) /* location of vectors: low/high addresses */
-#define RESERVED_1     (0xf << 3)      /* must be 111b for R/W */
+#define C1_HIGH_VECTORS        (1<<13)         /* location of vectors: low/high addresses */
+
 
 int cpu_init (void)
 {
@@ -120,6 +120,7 @@ int cleanup_before_linux (void)
        /* flush I/D-cache */
        i = 0;
        asm ("mcr p15, 0, %0, c7, c7, 0": :"r" (i));
+
        return (0);
 }