Changeset f288d85 in mainline

Timestamp:

2013-06-05T19:13:26Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

dff90fa7

Parents:

7275e520

Message:

arm32, boot: Better comments.

File:

• boot/arch/arm32/src/main.c (modified) (5 diffs)

boot/arch/arm32/src/main.c

@@ -63 +63 @@
 {
         const uintptr_t addr = (uintptr_t)address;
-        /* DCIMVAC - invalidate by address to the point of coherence */
         for (uintptr_t a = addr; a < addr + size; a += 4) {
+                /* DCIMVAC - invalidate by address to the point of coherence */
                 asm volatile ("mcr p15, 0, %[a], c7, c6, 1\n" :: [a]"r"(a) : );
         }
@@ -72 +72 @@
 {
         const uintptr_t addr = (uintptr_t)address;
-        /* DCCMVAC - clean by address to the point of coherence */
         for (uintptr_t a = addr; a < addr + size; a += 4) {
+                /* DCCMVAC - clean by address to the point of coherence */
                 asm volatile ("mcr p15, 0, %[a], c7, c10, 1\n" :: [a]"r"(a) : );
         }
@@ -82 +82 @@
 void bootstrap(void)
 {
-        /* Make sure  we run in memory code when caches are enabled,
+        /* Make sure we run in memory code when caches are enabled,
          * make sure we read memory data too. This part is ARMv7 specific as
          * ARMv7 no longer invalidates caches on restart.
@@ -105 +105 @@
                     components[i].start, components[i].name, components[i].inflated,
                     components[i].size);
+                /* Make sure there is no cache garbage in read locations */
                 invalidate_dcache(components[i].start, components[i].size);
         }
@@ -148 +149 @@
                         halt();
                 }
+                /* Make sure data are in the memory, ICache will need them */
                 clean_dcache_poc(dest[i - 1], components[i - 1].inflated);
         }