[PATCH 88/92] ram: rk3399: Set lpddr4 MR12

Jagan Teki
2019-06-11T14:51:31Z

Set MR12 based identified controller in lpddr4
as part of LPDDR set rate initialization phase.

Signed-off-by: Jagan Teki <jagan-dyjBcgdgk7Pe9wHmmfpqLFaTQe2KTcn/@public.gmane.org>
Signed-off-by: YouMin Chen <cym-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
---
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 f1fb16c130..38fc8ffe63 100644
--- a/drivers/ram/rockchip/sdram_rk3399.c
+++ b/drivers/ram/rockchip/sdram_rk3399.c
@@ -1996,6 +1996,55 @@ static void set_lpddr4_MR3(const struct chan_info *chan,
}
}

+static void set_lpddr4_MR12(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->ca_vref;
+
+ switch (ctl) {
+ case 0:
+ clrsetbits_le32(&denali_ctl[140], 0xFFFF << 16,
+ reg_value << 16);
+ clrsetbits_le32(&denali_ctl[154], 0xFFFF << 16,
+ reg_value << 16);
+
+ clrsetbits_le32(&denali_pi[132], 0xFF << 8, reg_value << 8);
+ clrsetbits_le32(&denali_pi[139], 0xFF << 24, reg_value << 24);
+ clrsetbits_le32(&denali_pi[147], 0xFF << 8, reg_value << 8);
+ clrsetbits_le32(&denali_pi[154], 0xFF << 24, reg_value << 24);
+ break;
+ case 1:
+ clrsetbits_le32(&denali_ctl[141], 0xFFFF, reg_value);
+ clrsetbits_le32(&denali_ctl[155], 0xFFFF, reg_value);
+
+ clrsetbits_le32(&denali_pi[129], 0xFF << 24, reg_value << 24);
+ clrsetbits_le32(&denali_pi[137], 0xFF << 8, reg_value << 8);
+ clrsetbits_le32(&denali_pi[144], 0xFF << 24, reg_value << 24);
+ clrsetbits_le32(&denali_pi[152], 0xFF << 8, reg_value << 8);
+ break;
+ case 2:
+ default:
+ clrsetbits_le32(&denali_ctl[141], 0xFFFF << 16,
+ reg_value << 16);
+ clrsetbits_le32(&denali_ctl[155], 0xFFFF << 16,
+ reg_value << 16);
+
+ clrsetbits_le32(&denali_pi[127], 0xFF << 8, reg_value << 8);
+ clrsetbits_le32(&denali_pi[134], 0xFF << 24, reg_value << 24);
+ clrsetbits_le32(&denali_pi[142], 0xFF << 8, reg_value << 8);
+ clrsetbits_le32(&denali_pi[149], 0xFF << 24, reg_value << 24);
+ break;
+ }
+}
+
static void lpddr4_copy_phy(struct dram_info *dram,
struct rk3399_sdram_params *params, u32 phy,
struct rk3399_sdram_params *timings,
@@ -2245,6 +2294,7 @@ static void lpddr4_copy_phy(struct dram_info *dram,
set_lpddr4_dq_odt(&dram->chan[channel], timings, ctl, true, true, mr5);
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);

/*
* if phy_sw_master_mode_X not bypass mode,
--
2.18.0.321.gffc6fa0e3