From: Maxim Yu. Osipov Date: Tue, 20 Feb 2018 10:08:09 +0000 (+0100) Subject: Revert "mx6: ddr: Allow changing REFSEL and REFR fields" X-Git-Url: http://git.ipfire.org/?p=people%2Fms%2Fu-boot.git;a=commitdiff_plain;h=d247cf50698a590571cf9a6fd4608e702580e40e Revert "mx6: ddr: Allow changing REFSEL and REFR fields" This reverts commit edf0093732225c2fd0791c3864e9a3eef1f92f19 for cm_fx6 iMX.6 Solo module as it causes frequent (around 10 percent of power cycles) board's hangs. These hangs happen in SPL when BSS is being initialized in SDRAM - it appear that variables from BSS contain trash values which lead to board hangs. Looks like that SDRAM doesn't yet finish initialization in these cases. Signed-off-by: Maxim Yu. Osipov Reviewed-by: Stefano Babic --- diff --git a/board/compulab/cm_fx6/spl.c b/board/compulab/cm_fx6/spl.c index 56aac60239..16e5bf8dfa 100644 --- a/board/compulab/cm_fx6/spl.c +++ b/board/compulab/cm_fx6/spl.c @@ -107,8 +107,6 @@ static struct mx6_ddr_sysinfo cm_fx6_sysinfo_s = { .mif3_mode = 3, .rst_to_cke = 0x23, .sde_to_rst = 0x10, - .refsel = 1, /* Refresh cycles at 32KHz */ - .refr = 7, /* 8 refresh commands per refresh cycle */ }; static struct mx6_ddr3_cfg cm_fx6_ddr3_cfg_s = {