[U-Boot] [PATCH v8 07/11] ddr: fsl: set cdr1 first in case 0.9v VDD is enabled for some SoCs

Rajesh Bhagat rajesh.bhagat at nxp.com
Wed Jan 17 10:43:06 UTC 2018


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 <Ashish.Kumar at nxp.com>
Signed-off-by: Rajesh Bhagat <rajesh.bhagat at nxp.com>
---
Changes in v8:                                                                  
 None

 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 058c9b9..b3a27ec 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,
-- 
2.7.4



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