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Diffstat (limited to 'src/soc/rockchip/rk3288/sdram.h')
-rw-r--r-- | src/soc/rockchip/rk3288/sdram.h | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/src/soc/rockchip/rk3288/sdram.h b/src/soc/rockchip/rk3288/sdram.h new file mode 100644 index 0000000000..1da14b7ed5 --- /dev/null +++ b/src/soc/rockchip/rk3288/sdram.h @@ -0,0 +1,104 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2014 Rockchip Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __SOC_ROCKCHIP_RK3288_SDRAM_H__ +#define __SOC_ROCKCHIP_RK3288_SDRAM_H__ + +#include <arch/io.h> + +enum { + DDR3 = 3, + LPDDR3 = 6, + UNUSED = 0xFF, +}; + +struct rk3288_sdram_channel { + u8 rank; + u8 col; + u8 bk; + u8 bw; + u8 dbw; + u8 row_3_4; + u8 cs0_row; + u8 cs1_row; +}; + +struct rk3288_sdram_pctl_timing { + u32 togcnt1u; + u32 tinit; + u32 trsth; + u32 togcnt100n; + u32 trefi; + u32 tmrd; + u32 trfc; + u32 trp; + u32 trtw; + u32 tal; + u32 tcl; + u32 tcwl; + u32 tras; + u32 trc; + u32 trcd; + u32 trrd; + u32 trtp; + u32 twr; + u32 twtr; + u32 texsr; + u32 txp; + u32 txpdll; + u32 tzqcs; + u32 tzqcsi; + u32 tdqs; + u32 tcksre; + u32 tcksrx; + u32 tcke; + u32 tmod; + u32 trstl; + u32 tzqcl; + u32 tmrr; + u32 tckesr; + u32 tdpd; +}; +check_member(rk3288_sdram_pctl_timing, tdpd, 0x144 - 0xc0); + +struct rk3288_sdram_phy_timing { + u32 dtpr0; + u32 dtpr1; + u32 dtpr2; + u32 mr[4]; +}; + +struct rk3288_sdram_params { + struct rk3288_sdram_channel ch[2]; + struct rk3288_sdram_pctl_timing pctl_timing; + struct rk3288_sdram_phy_timing phy_timing; + u32 noc_timing; + u32 noc_activate; + u32 ddrconfig; + u32 ddr_freq; + u8 dramtype; + u8 num_channels; + u8 stride; + u8 odt; +}; + +void sdram_init(const struct rk3288_sdram_params *sdram_params); +u32 sdram_get_ram_code(void); +const struct rk3288_sdram_params *get_sdram_config(void); +#endif |