From 554d33f3db3cdbb02f440ab3b667ff2bc3cfa2b1 Mon Sep 17 00:00:00 2001 From: Rajesh Bhagat Date: Wed, 17 Jan 2018 16:13:06 +0530 Subject: [PATCH] ddr: fsl: set cdr1 first in case 0.9v VDD is enabled for some SoCs Sets DDR configuration parameter cdr1 before all other settings to support case 0.9v VDD is enabled for some SoCs Signed-off-by: Ashish Kumar Signed-off-by: Rajesh Bhagat Reviewed-by: York Sun --- drivers/ddr/fsl/fsl_ddr_gen4.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/ddr/fsl/fsl_ddr_gen4.c b/drivers/ddr/fsl/fsl_ddr_gen4.c index 058c9b9da8..b3a27ec5a8 100644 --- a/drivers/ddr/fsl/fsl_ddr_gen4.c +++ b/drivers/ddr/fsl/fsl_ddr_gen4.c @@ -95,6 +95,9 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, if (step == 2) goto step2; + /* Set cdr1 first in case 0.9v VDD is enabled for some SoCs*/ + ddr_out32(&ddr->ddr_cdr1, regs->ddr_cdr1); + if (regs->ddr_eor) ddr_out32(&ddr->eor, regs->ddr_eor); @@ -183,7 +186,6 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs, ddr_out32(&ddr->ddr_sdram_rcw_4, regs->ddr_sdram_rcw_4); ddr_out32(&ddr->ddr_sdram_rcw_5, regs->ddr_sdram_rcw_5); ddr_out32(&ddr->ddr_sdram_rcw_6, regs->ddr_sdram_rcw_6); - ddr_out32(&ddr->ddr_cdr1, regs->ddr_cdr1); #ifdef CONFIG_DEEP_SLEEP if (is_warm_boot()) { ddr_out32(&ddr->sdram_cfg_2, -- 2.30.2