| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * Copyright (C) 2017 Rockchip Electronics Co., Ltd. |
| */ |
| |
| #ifndef _ASM_ARCH_SDRAM_COMMON_H |
| #define _ASM_ARCH_SDRAM_COMMON_H |
| |
| enum { |
| DDR4 = 0, |
| DDR3 = 0x3, |
| LPDDR2 = 0x5, |
| LPDDR3 = 0x6, |
| LPDDR4 = 0x7, |
| UNUSED = 0xFF |
| }; |
| |
| struct sdram_cap_info { |
| unsigned int rank; |
| /* dram column number, 0 means this channel is invalid */ |
| unsigned int col; |
| /* dram bank number, 3:8bank, 2:4bank */ |
| unsigned int bk; |
| /* channel buswidth, 2:32bit, 1:16bit, 0:8bit */ |
| unsigned int bw; |
| /* die buswidth, 2:32bit, 1:16bit, 0:8bit */ |
| unsigned int dbw; |
| /* |
| * row_3_4 = 1: 6Gb or 12Gb die |
| * row_3_4 = 0: normal die, power of 2 |
| */ |
| unsigned int row_3_4; |
| unsigned int cs0_row; |
| unsigned int cs1_row; |
| unsigned int ddrconfig; |
| }; |
| |
| struct sdram_base_params { |
| unsigned int ddr_freq; |
| unsigned int dramtype; |
| unsigned int num_channels; |
| unsigned int stride; |
| unsigned int odt; |
| }; |
| |
| /* |
| * sys_reg bitfield struct |
| * [31] row_3_4_ch1 |
| * [30] row_3_4_ch0 |
| * [29:28] chinfo |
| * [27] rank_ch1 |
| * [26:25] col_ch1 |
| * [24] bk_ch1 |
| * [23:22] cs0_row_ch1 |
| * [21:20] cs1_row_ch1 |
| * [19:18] bw_ch1 |
| * [17:16] dbw_ch1; |
| * [15:13] ddrtype |
| * [12] channelnum |
| * [11] rank_ch0 |
| * [10:9] col_ch0 |
| * [8] bk_ch0 |
| * [7:6] cs0_row_ch0 |
| * [5:4] cs1_row_ch0 |
| * [3:2] bw_ch0 |
| * [1:0] dbw_ch0 |
| */ |
| #define SYS_REG_DDRTYPE_SHIFT 13 |
| #define SYS_REG_DDRTYPE_MASK 7 |
| #define SYS_REG_NUM_CH_SHIFT 12 |
| #define SYS_REG_NUM_CH_MASK 1 |
| #define SYS_REG_ROW_3_4_SHIFT(ch) (30 + (ch)) |
| #define SYS_REG_ROW_3_4_MASK 1 |
| #define SYS_REG_CHINFO_SHIFT(ch) (28 + (ch)) |
| #define SYS_REG_RANK_SHIFT(ch) (11 + (ch) * 16) |
| #define SYS_REG_RANK_MASK 1 |
| #define SYS_REG_COL_SHIFT(ch) (9 + (ch) * 16) |
| #define SYS_REG_COL_MASK 3 |
| #define SYS_REG_BK_SHIFT(ch) (8 + (ch) * 16) |
| #define SYS_REG_BK_MASK 1 |
| #define SYS_REG_CS0_ROW_SHIFT(ch) (6 + (ch) * 16) |
| #define SYS_REG_CS0_ROW_MASK 3 |
| #define SYS_REG_CS1_ROW_SHIFT(ch) (4 + (ch) * 16) |
| #define SYS_REG_CS1_ROW_MASK 3 |
| #define SYS_REG_BW_SHIFT(ch) (2 + (ch) * 16) |
| #define SYS_REG_BW_MASK 3 |
| #define SYS_REG_DBW_SHIFT(ch) ((ch) * 16) |
| #define SYS_REG_DBW_MASK 3 |
| |
| /* Get sdram size decode from reg */ |
| size_t rockchip_sdram_size(phys_addr_t reg); |
| |
| /* Called by U-Boot board_init_r for Rockchip SoCs */ |
| int dram_init(void); |
| |
| #if !defined(CONFIG_RAM_ROCKCHIP_DEBUG) |
| inline void sdram_print_dram_type(unsigned char dramtype) |
| { |
| } |
| |
| inline void sdram_print_ddr_info(struct sdram_cap_info *cap_info, |
| struct sdram_base_params *base) |
| { |
| } |
| #else |
| void sdram_print_dram_type(unsigned char dramtype); |
| void sdram_print_ddr_info(struct sdram_cap_info *cap_info, |
| struct sdram_base_params *base); |
| #endif /* CONFIG_RAM_ROCKCHIP_DEBUG */ |
| |
| #endif |