armv8/ls1043: Add workaround for DDR erratum A-008850
Barrier transactions from CCI400 need to be disabled till
the DDR is configured, otherwise it may lead to system hang.
The patch adds workaround to fix the erratum.
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/board/freescale/ls1043ardb/ddr.c b/board/freescale/ls1043ardb/ddr.c
index 11bc0f2..1e2fd2e 100644
--- a/board/freescale/ls1043ardb/ddr.c
+++ b/board/freescale/ls1043ardb/ddr.c
@@ -177,6 +177,8 @@
#else
dram_size = fsl_ddr_sdram_size();
#endif
+ erratum_a008850_post();
+
#ifdef CONFIG_FSL_DEEP_SLEEP
fsl_dp_ddr_restore();
#endif
diff --git a/board/freescale/ls1043ardb/ddr.h b/board/freescale/ls1043ardb/ddr.h
index b17eb80..8ca166b 100644
--- a/board/freescale/ls1043ardb/ddr.h
+++ b/board/freescale/ls1043ardb/ddr.h
@@ -6,6 +6,9 @@
#ifndef __DDR_H__
#define __DDR_H__
+
+extern void erratum_a008850_post(void);
+
struct board_specific_parameters {
u32 n_ranks;
u32 datarate_mhz_high;
diff --git a/board/freescale/ls1043ardb/ls1043ardb.c b/board/freescale/ls1043ardb/ls1043ardb.c
index ec5fdbf..8d80135 100644
--- a/board/freescale/ls1043ardb/ls1043ardb.c
+++ b/board/freescale/ls1043ardb/ls1043ardb.c
@@ -83,14 +83,6 @@
int board_init(void)
{
- struct ccsr_cci400 *cci = (struct ccsr_cci400 *)CONFIG_SYS_CCI400_ADDR;
-
- /*
- * Set CCI-400 control override register to enable barrier
- * transaction
- */
- out_le32(&cci->ctrl_ord, CCI400_CTRLORD_EN_BARRIER);
-
#ifdef CONFIG_FSL_IFC
init_final_memctl_regs();
#endif