diff options
| -rw-r--r-- | drivers/ram/rockchip/sdram_rk3399.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/drivers/ram/rockchip/sdram_rk3399.c b/drivers/ram/rockchip/sdram_rk3399.c index 781d1170a0..9121d5b779 100644 --- a/drivers/ram/rockchip/sdram_rk3399.c +++ b/drivers/ram/rockchip/sdram_rk3399.c @@ -80,6 +80,110 @@ struct rockchip_dmc_plat { struct regmap *map; }; +struct io_setting { + u32 mhz; + u32 mr5; + /* dram side */ + u32 dq_odt; + u32 ca_odt; + u32 pdds; + u32 dq_vref; + u32 ca_vref; + /* phy side */ + u32 rd_odt; + u32 wr_dq_drv; + u32 wr_ca_drv; + u32 wr_ckcs_drv; + u32 rd_odt_en; + u32 rd_vref; +} lpddr4_io_setting[] = { + { + 50 * MHz, + 0, + /* dram side */ + 0, /* dq_odt; */ + 0, /* ca_odt; */ + 6, /* pdds; */ + 0x72, /* dq_vref; */ + 0x72, /* ca_vref; */ + /* phy side */ + PHY_DRV_ODT_HI_Z, /* rd_odt; */ + PHY_DRV_ODT_40, /* wr_dq_drv; */ + PHY_DRV_ODT_40, /* wr_ca_drv; */ + PHY_DRV_ODT_40, /* wr_ckcs_drv; */ + 0, /* rd_odt_en;*/ + 41, /* rd_vref; (unit %, range 3.3% - 48.7%) */ + }, + { + 600 * MHz, + 0, + /* dram side */ + 1, /* dq_odt; */ + 0, /* ca_odt; */ + 6, /* pdds; */ + 0x72, /* dq_vref; */ + 0x72, /* ca_vref; */ + /* phy side */ + PHY_DRV_ODT_HI_Z, /* rd_odt; */ + PHY_DRV_ODT_48, /* wr_dq_drv; */ + PHY_DRV_ODT_40, /* wr_ca_drv; */ + PHY_DRV_ODT_40, /* wr_ckcs_drv; */ + 0, /* rd_odt_en; */ + 32, /* rd_vref; (unit %, range 3.3% - 48.7%) */ + }, + { + 800 * MHz, + 0, + /* dram side */ + 1, /* dq_odt; */ + 0, /* ca_odt; */ + 1, /* pdds; */ + 0x72, /* dq_vref; */ + 0x72, /* ca_vref; */ + /* phy side */ + PHY_DRV_ODT_40, /* rd_odt; */ + PHY_DRV_ODT_48, /* wr_dq_drv; */ + PHY_DRV_ODT_40, /* wr_ca_drv; */ + PHY_DRV_ODT_40, /* wr_ckcs_drv; */ + 1, /* rd_odt_en; */ + 17, /* rd_vref; (unit %, range 3.3% - 48.7%) */ + }, + { + 933 * MHz, + 0, + /* dram side */ + 3, /* dq_odt; */ + 0, /* ca_odt; */ + 6, /* pdds; */ + 0x59, /* dq_vref; 32% */ + 0x72, /* ca_vref; */ + /* phy side */ + PHY_DRV_ODT_HI_Z, /* rd_odt; */ + PHY_DRV_ODT_48, /* wr_dq_drv; */ + PHY_DRV_ODT_40, /* wr_ca_drv; */ + PHY_DRV_ODT_40, /* wr_ckcs_drv; */ + 0, /* rd_odt_en; */ + 32, /* rd_vref; (unit %, range 3.3% - 48.7%) */ + }, + { + 1066 * MHz, + 0, + /* dram side */ + 6, /* dq_odt; */ + 0, /* ca_odt; */ + 1, /* pdds; */ + 0x10, /* dq_vref; */ + 0x72, /* ca_vref; */ + /* phy side */ + PHY_DRV_ODT_40, /* rd_odt; */ + PHY_DRV_ODT_60, /* wr_dq_drv; */ + PHY_DRV_ODT_40, /* wr_ca_drv; */ + PHY_DRV_ODT_40, /* wr_ckcs_drv; */ + 1, /* rd_odt_en; */ + 17, /* rd_vref; (unit %, range 3.3% - 48.7%) */ + }, +}; + static void *get_ddrc0_con(struct dram_info *dram, u8 channel) { return (channel == 0) ? &dram->grf->ddrc0_con0 : &dram->grf->ddrc0_con1; |