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authorDavid Hendricks <dhendrix@chromium.org>2013-03-19 17:11:31 -0700
committerDavid Hendricks <dhendrix@chromium.org>2013-03-21 05:11:59 +0100
commit8ec69053f1a9f107f73f018fd613cf3038a12c7c (patch)
tree6a613debdc996358e23aeee8e2a4888ad9ba8bf1 /src/arch/armv7
parenteb06a4259b48128faed94b4ca3f8c64d3cd5a4c3 (diff)
armv7: move armv7_invalidate_caches() to cache.c
This just moves cache maintenance stuff from the armv7 bootblock code to cache.c Change-Id: I0b3ab58a1d8a3fe3d9568e02e156a36b6f33ca0b Signed-off-by: David Hendricks <dhendrix@chromium.org> Reviewed-on: http://review.coreboot.org/2867 Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/arch/armv7')
-rw-r--r--src/arch/armv7/bootblock_simple.c52
-rw-r--r--src/arch/armv7/include/arch/cache.h3
-rw-r--r--src/arch/armv7/lib/cache.c49
3 files changed, 52 insertions, 52 deletions
diff --git a/src/arch/armv7/bootblock_simple.c b/src/arch/armv7/bootblock_simple.c
index 7012e17807..ad25b41316 100644
--- a/src/arch/armv7/bootblock_simple.c
+++ b/src/arch/armv7/bootblock_simple.c
@@ -28,58 +28,6 @@
#include "stages.c"
-static void armv7_invalidate_caches(void)
-{
- uint32_t clidr;
- int level;
-
- /* Invalidate branch predictor */
- bpiall();
-
- /* Iterate thru each cache identified in CLIDR and invalidate */
- clidr = read_clidr();
- for (level = 0; level < 7; level++) {
- unsigned int ctype = (clidr >> (level * 3)) & 0x7;
- uint32_t csselr;
-
- switch(ctype) {
- case 0x0:
- /* no cache */
- break;
- case 0x1:
- /* icache only */
- csselr = (level << 1) | 1;
- write_csselr(csselr);
- icache_invalidate_all();
- break;
- case 0x2:
- case 0x4:
- /* dcache only or unified cache */
- dcache_invalidate_all();
- break;
- case 0x3:
- /* separate icache and dcache */
- csselr = (level << 1) | 1;
- write_csselr(csselr);
- icache_invalidate_all();
-
- csselr = level < 1;
- write_csselr(csselr);
- dcache_invalidate_all();
- break;
- default:
- /* reserved */
- break;
- }
- }
-
- /* Invalidate TLB */
- /* FIXME: ARMv7 Architecture Ref. Manual claims that the distinction
- * instruction vs. data TLBs is deprecated in ARMv7. But that doesn't
- * really seem true for Cortex-A15? */
- tlb_invalidate_all();
-}
-
static int boot_cpu(void)
{
/*
diff --git a/src/arch/armv7/include/arch/cache.h b/src/arch/armv7/include/arch/cache.h
index 5125b8c449..643da7c69e 100644
--- a/src/arch/armv7/include/arch/cache.h
+++ b/src/arch/armv7/include/arch/cache.h
@@ -225,6 +225,9 @@ void dcache_clean_invalidate_by_mva(unsigned long addr, unsigned long len);
/* invalidate entire icache on current level (given by CSSELR) */
void icache_invalidate_all(void);
+/* invalidate all caches on ARMv7 */
+void armv7_invalidate_caches(void);
+
/* MMU setup by machine virtual address */
void mmu_setup_by_mva(unsigned long start, unsigned long size);
diff --git a/src/arch/armv7/lib/cache.c b/src/arch/armv7/lib/cache.c
index 62ae755ded..45d3308fbc 100644
--- a/src/arch/armv7/lib/cache.c
+++ b/src/arch/armv7/lib/cache.c
@@ -170,6 +170,55 @@ void dcache_clean_invalidate_by_mva(unsigned long addr, unsigned long len)
dccimvac(addr);
}
+void armv7_invalidate_caches(void)
+{
+ uint32_t clidr;
+ int level;
+
+ /* Invalidate branch predictor */
+ bpiall();
+
+ /* Iterate thru each cache identified in CLIDR and invalidate */
+ clidr = read_clidr();
+ for (level = 0; level < 7; level++) {
+ unsigned int ctype = (clidr >> (level * 3)) & 0x7;
+ uint32_t csselr;
+
+ switch(ctype) {
+ case 0x0:
+ /* no cache */
+ break;
+ case 0x1:
+ /* icache only */
+ csselr = (level << 1) | 1;
+ write_csselr(csselr);
+ icache_invalidate_all();
+ break;
+ case 0x2:
+ case 0x4:
+ /* dcache only or unified cache */
+ dcache_invalidate_all();
+ break;
+ case 0x3:
+ /* separate icache and dcache */
+ csselr = (level << 1) | 1;
+ write_csselr(csselr);
+ icache_invalidate_all();
+
+ csselr = level < 1;
+ write_csselr(csselr);
+ dcache_invalidate_all();
+ break;
+ default:
+ /* reserved */
+ break;
+ }
+ }
+
+ /* Invalidate TLB */
+ tlb_invalidate_all();
+}
+
/* FIXME: wrapper around imported mmu_setup() for now */
extern void mmu_setup(unsigned long start, unsigned long size);
void mmu_setup_by_mva(unsigned long start, unsigned long size)