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-rw-r--r--board/lwmon5/sdram.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/board/lwmon5/sdram.c b/board/lwmon5/sdram.c
index 7c3cf49..36b5100 100644
--- a/board/lwmon5/sdram.c
+++ b/board/lwmon5/sdram.c
@@ -34,6 +34,7 @@
#include <asm/processor.h>
#include <asm/mmu.h>
#include <asm/io.h>
+#include <asm/cache.h>
#include <ppc440.h>
#include <watchdog.h>
@@ -59,7 +60,6 @@
extern int denali_wait_for_dlllock(void);
extern void denali_core_search_data_eye(void);
extern void dcbz_area(u32 start_address, u32 num_bytes);
-extern void dflush(void);
static u32 is_ecc_enabled(void)
{
@@ -106,6 +106,7 @@ static void program_ecc(u32 start_address,
{
u32 val;
u32 current_addr = start_address;
+ u32 size;
int bytes_remaining;
sync();
@@ -123,12 +124,18 @@ static void program_ecc(u32 start_address,
* watchdog.
*/
while (bytes_remaining > 0) {
- dcbz_area(current_addr, min((64 << 20), bytes_remaining));
+ size = min((64 << 20), bytes_remaining);
+
+ /* Write zero's to SDRAM */
+ dcbz_area(current_addr, size);
+
+ /* Write modified dcache lines back to memory */
+ clean_dcache_range(current_addr, current_addr + size);
+
current_addr += 64 << 20;
bytes_remaining -= 64 << 20;
WATCHDOG_RESET();
}
- dflush();
sync();
wait_ddr_idle();