Adds check for mclk_ps variable before calculating caslat_actual.

Verified changes on lx2160ardb board.

Signed-off-by: Maninder Singh maninder.singh_1@nxp.com --- drivers/ddr/fsl/lc_common_dimm_params.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/ddr/fsl/lc_common_dimm_params.c b/drivers/ddr/fsl/lc_common_dimm_params.c index d299d763db..062eadcbd4 100644 --- a/drivers/ddr/fsl/lc_common_dimm_params.c +++ b/drivers/ddr/fsl/lc_common_dimm_params.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 /* * Copyright 2008-2016 Freescale Semiconductor, Inc. - * Copyright 2017-2018 NXP Semiconductor + * Copyright 2017-2018, 2021 NXP Semiconductor */

#include <common.h> @@ -23,7 +23,7 @@ compute_cas_latency(const unsigned int ctrl_num, unsigned int caslat_actual; unsigned int retry = 16; unsigned int tmp = ~0; - const unsigned int mclk_ps = get_memory_clk_period_ps(ctrl_num); + unsigned int mclk_ps = get_memory_clk_period_ps(ctrl_num); #ifdef CONFIG_SYS_FSL_DDR3 const unsigned int taamax = 20000; #else @@ -37,6 +37,10 @@ compute_cas_latency(const unsigned int ctrl_num, } common_caslat = tmp;

+ if (!mclk_ps) { + mclk_ps = outpdimm->tckmin_x_ps; + } + /* validate if the memory clk is in the range of dimms */ if (mclk_ps < outpdimm->tckmin_x_ps) { printf("DDR clock (MCLK cycle %u ps) is faster than "