Configure BOOSTP_EN, BOOSTN_EN for lpddr4 during phy IO config.
Signed-off-by: Jagan Teki jagan@amarulasolutions.com Signed-off-by: YouMin Chen cym@rock-chips.com --- drivers/ram/rockchip/sdram_rk3399.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+)
diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c index 7d2359740c..4328790a4f 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -35,6 +35,9 @@ #define PHY_DRV_ODT_40 0xe #define PHY_DRV_ODT_34_3 0xf
+#define PHY_BOOSTP_EN 0x1 +#define PHY_BOOSTN_EN 0x1 + #define CRU_SFTRST_DDR_CTRL(ch, n) ((0x1 << (8 + 16 + (ch) * 4)) | \ ((n) << (8 + (ch) * 4))) #define CRU_SFTRST_DDR_PHY(ch, n) ((0x1 << (9 + 16 + (ch) * 4)) | \ @@ -313,6 +316,27 @@ static int phy_io_config(const struct chan_info *chan, /* PHY_939 PHY_PAD_CS_DRIVE */ clrsetbits_le32(&denali_phy[939], 0x7 << 14, mode_sel << 14);
+ if (sdram_params->base.dramtype == LPDDR4) { + /* BOOSTP_EN & BOOSTN_EN */ + reg_value = ((PHY_BOOSTP_EN << 4) | PHY_BOOSTN_EN); + /* PHY_925 PHY_PAD_FDBK_DRIVE2 */ + clrsetbits_le32(&denali_phy[925], 0xff << 8, reg_value << 8); + /* PHY_926 PHY_PAD_DATA_DRIVE */ + clrsetbits_le32(&denali_phy[926], 0xff << 12, reg_value << 12); + /* PHY_927 PHY_PAD_DQS_DRIVE */ + clrsetbits_le32(&denali_phy[927], 0xff << 14, reg_value << 14); + /* PHY_928 PHY_PAD_ADDR_DRIVE */ + clrsetbits_le32(&denali_phy[928], 0xff << 20, reg_value << 20); + /* PHY_929 PHY_PAD_CLK_DRIVE */ + clrsetbits_le32(&denali_phy[929], 0xff << 22, reg_value << 22); + /* PHY_935 PHY_PAD_CKE_DRIVE */ + clrsetbits_le32(&denali_phy[935], 0xff << 20, reg_value << 20); + /* PHY_937 PHY_PAD_RST_DRIVE */ + clrsetbits_le32(&denali_phy[937], 0xff << 20, reg_value << 20); + /* PHY_939 PHY_PAD_CS_DRIVE */ + clrsetbits_le32(&denali_phy[939], 0xff << 20, reg_value << 20); + } + /* speed setting */ if (sdram_params->base.ddr_freq < 400) speed = 0x0;