diff options
| author | Jagan Teki <jagan@amarulasolutions.com> | 2019-07-16 17:27:15 +0530 |
|---|---|---|
| committer | Kever Yang <kever.yang@rock-chips.com> | 2019-07-20 23:59:44 +0800 |
| commit | 881860fd34bea88929a5849f7550d70b0a9d6099 (patch) | |
| tree | 9579132cc4854283422363e22e3db303d8b219f8 /drivers/ram | |
| parent | 009fe1bac96889bd5f10f8d7a3edf4f1ba125ff3 (diff) | |
| download | u-boot-881860fd34bea88929a5849f7550d70b0a9d6099.tar.gz | |
ram: rk3399: Configure BOOSTP_EN, BOOSTN_EN for lpddr4
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>
Reviewed-by: Kever Yang <Kever.yang@rock-chips.com>
Diffstat (limited to 'drivers/ram')
| -rw-r--r-- | drivers/ram/rockchip/sdram_rk3399.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c index aaf786a03e..0c8a7f81cc 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)) | \ @@ -312,6 +315,27 @@ 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 (IS_ENABLED(CONFIG_RAM_RK3399_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 (params->base.ddr_freq < 400) speed = 0x0; |