ppc4xx: Flush complete dcache in relocate_code()
When the cache is enabled in SDRAM we need to flush not only the global
data area but also the bd_info struct in relocate_code. This patch now
flushed the complete dcache (all dcache lines) via flush_dcache() instead
of adding a flush_dcache_range() call for bd_info since this is faster.
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/arch/powerpc/cpu/ppc4xx/start.S b/arch/powerpc/cpu/ppc4xx/start.S
index 65195f5..0e75794 100644
--- a/arch/powerpc/cpu/ppc4xx/start.S
+++ b/arch/powerpc/cpu/ppc4xx/start.S
@@ -1389,8 +1389,8 @@
relocate_code:
#if defined(CONFIG_4xx_DCACHE) || defined(CONFIG_SYS_INIT_DCACHE_CS)
/*
- * We need to flush the initial global data (gd_t) before the dcache
- * will be invalidated.
+ * We need to flush the initial global data (gd_t) and bd_info
+ * before the dcache will be invalidated.
*/
/* Save registers */
@@ -1398,10 +1398,11 @@
mr r10, r4
mr r11, r5
- /* Flush initial global data range */
- mr r3, r4
- addi r4, r4, GENERATED_GBL_DATA_SIZE@l
- bl flush_dcache_range
+ /*
+ * Flush complete dcache, this is faster than flushing the
+ * ranges for global_data and bd_info instead.
+ */
+ bl flush_dcache
#if defined(CONFIG_SYS_INIT_DCACHE_CS)
/*