From: Jagan Teki <jagan@amarulasolutions.com>
Date: Tue, 16 Jul 2019 11:57:25 +0000 (+0530)
Subject: ram: rk3399: Get lpddr4 tsel_rd_en from io settings
X-Git-Tag: v2019.10-rc1~20^2~77
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=4eceda01d5df9d90d6402dfd5fcf1bcc9c5c00e6;p=oweals%2Fu-boot.git

ram: rk3399: Get lpddr4 tsel_rd_en from io settings

For base.odt 1 the lpddr4 tsel_rd_en value is depending
on IO settings of rd_odt_en.

Add support for it.

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: YouMin Chen <cym@rock-chips.com>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
---

diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c
index 7ef7707a03..7dd3a44bfb 100644
--- a/drivers/ram/rockchip/sdram_rk3399.c
+++ b/drivers/ram/rockchip/sdram_rk3399.c
@@ -645,10 +645,14 @@ static void set_ds_odt(const struct chan_info *chan,
 		tsel_ckcs_select_n = PHY_DRV_ODT_34_3;
 	}
 
-	if (params->base.odt == 1)
+	if (params->base.odt == 1) {
 		tsel_rd_en = 1;
-	else
+
+		if (params->base.dramtype == LPDDR4)
+			tsel_rd_en = io->rd_odt_en;
+	} else {
 		tsel_rd_en = 0;
+	}
 
 	tsel_wr_en = 0;
 	tsel_idle_en = 0;