[U-Boot] [PATCH 89/92] ram: rk3399: Set lpddr4 MR14

[Jagan Teki]

Set MR14 based identified controller in lpddr4
as part of LPDDR set rate initialization phase.

Signed-off-by: Jagan Teki <jagan at amarulasolutions.com>
Signed-off-by: YouMin Chen <cym at rock-chips.com>
---
 drivers/ram/rockchip/sdram_rk3399.c | 50 +++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c
index 38fc8ffe63..859f26462d 100644
--- a/drivers/ram/rockchip/sdram_rk3399.c
+++ b/drivers/ram/rockchip/sdram_rk3399.c
@@ -2045,6 +2045,55 @@ static void set_lpddr4_MR12(const struct chan_info *chan,
 	}
 }
 
+static void set_lpddr4_MR14(const struct chan_info *chan,
+			    struct rk3399_sdram_params *params, u32 ctl,
+			    bool ctl_phy_reg, u32 mr5)
+{
+	u32 *denali_ctl = get_denali_ctl(chan, params, ctl_phy_reg);
+	u32 *denali_pi = get_denali_pi(chan, params, ctl_phy_reg);
+	struct io_setting *io;
+	u32 reg_value;
+
+	io = lpddr4_get_io_settings(params, mr5);
+
+	reg_value = io->dq_vref;
+
+	switch (ctl) {
+	case 0:
+		clrsetbits_le32(&denali_ctl[142], 0xFFFF << 16,
+				reg_value << 16);
+		clrsetbits_le32(&denali_ctl[156], 0xFFFF << 16,
+				reg_value << 16);
+
+		clrsetbits_le32(&denali_pi[132], 0xFF << 16, reg_value << 16);
+		clrsetbits_le32(&denali_pi[140], 0xFF << 0, reg_value << 0);
+		clrsetbits_le32(&denali_pi[147], 0xFF << 16, reg_value << 16);
+		clrsetbits_le32(&denali_pi[155], 0xFF << 0, reg_value << 0);
+		break;
+	case 1:
+		clrsetbits_le32(&denali_ctl[143], 0xFFFF, reg_value);
+		clrsetbits_le32(&denali_ctl[157], 0xFFFF, reg_value);
+
+		clrsetbits_le32(&denali_pi[130], 0xFF << 0, reg_value << 0);
+		clrsetbits_le32(&denali_pi[137], 0xFF << 16, reg_value << 16);
+		clrsetbits_le32(&denali_pi[145], 0xFF << 0, reg_value << 0);
+		clrsetbits_le32(&denali_pi[152], 0xFF << 16, reg_value << 16);
+		break;
+	case 2:
+	default:
+		clrsetbits_le32(&denali_ctl[143], 0xFFFF << 16,
+				reg_value << 16);
+		clrsetbits_le32(&denali_ctl[157], 0xFFFF << 16,
+				reg_value << 16);
+
+		clrsetbits_le32(&denali_pi[127], 0xFF << 16, reg_value << 16);
+		clrsetbits_le32(&denali_pi[135], 0xFF << 0, reg_value << 0);
+		clrsetbits_le32(&denali_pi[142], 0xFF << 16, reg_value << 16);
+		clrsetbits_le32(&denali_pi[150], 0xFF << 0, reg_value << 0);
+		break;
+	}
+}
+
 static void lpddr4_copy_phy(struct dram_info *dram,
 			    struct rk3399_sdram_params *params, u32 phy,
 			    struct rk3399_sdram_params *timings,
@@ -2295,6 +2344,7 @@ static void lpddr4_copy_phy(struct dram_info *dram,
 	set_lpddr4_ca_odt(&dram->chan[channel], timings, ctl, true, true, mr5);
 	set_lpddr4_MR3(&dram->chan[channel], timings, ctl, true, mr5);
 	set_lpddr4_MR12(&dram->chan[channel], timings, ctl, true, mr5);
+	set_lpddr4_MR14(&dram->chan[channel], timings, ctl, true, mr5);
 
 	/*
 	 * if phy_sw_master_mode_X not bypass mode,
-- 
2.18.0.321.gffc6fa0e3