driver/ddr/fsl: Add workaround for A009663
Erratum A-009663 workaround requires to set DDR_INTERVAL[BSTOPRE] to 0
before setting DDR_SDRAM_CFG[MEM_EN] and set DDR_INTERVAL[BSTOPRE]
to the desired value after DDR initialization has completed.
When DDR controller is configured to operate in auto-precharge
mode(DDR_INTERVAL[BSTOPRE]=0), this workaround is not needed.
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/include/fsl_ddr_sdram.h b/include/fsl_ddr_sdram.h
index 9ea8b63..3699c04 100644
--- a/include/fsl_ddr_sdram.h
+++ b/include/fsl_ddr_sdram.h
@@ -129,6 +129,7 @@
#define SDRAM_CFG2_ODT_ONLY_READ 2
#define SDRAM_CFG2_ODT_ALWAYS 3
+#define SDRAM_INTERVAL_BSTOPRE 0x3FFF
#define TIMING_CFG_2_CPO_MASK 0x0F800000
#if defined(CONFIG_SYS_FSL_DDR_VER) && \