diff options
Diffstat (limited to 'include/mach/rockchip/dmc.h')
-rw-r--r-- | include/mach/rockchip/dmc.h | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/include/mach/rockchip/dmc.h b/include/mach/rockchip/dmc.h new file mode 100644 index 0000000000..ff197d50a0 --- /dev/null +++ b/include/mach/rockchip/dmc.h @@ -0,0 +1,86 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2017 Rockchip Electronics Co., Ltd. + */ + +#ifndef _MACH_ROCKCHIP_DMC_H +#define _MACH_ROCKCHIP_DMC_H + +#include <linux/compiler.h> +#include <linux/types.h> +#include <linux/bitfield.h> + +enum { + DDR4 = 0, + DDR3 = 0x3, + LPDDR2 = 0x5, + LPDDR3 = 0x6, + LPDDR4 = 0x7, + UNUSED = 0xFF +}; + +/* + * sys_reg2 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] low bits of cs0_row_ch1 + * [21:20] low bits of 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] low bits of cs0_row_ch0 + * [5:4] low bits of cs1_row_ch0 + * [3:2] bw_ch0 + * [1:0] dbw_ch0 + */ + +#define SYS_REG_DDRTYPE GENMASK(15, 13) +#define SYS_REG_NUM_CH BIT(12) +#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 + +/* + * sys_reg3 bitfield struct + * [7] high bit of cs0_row_ch1 + * [6] high bit of cs1_row_ch1 + * [5] high bit of cs0_row_ch0 + * [4] high bit of cs1_row_ch0 + * [3:2] cs1_col_ch1 + * [1:0] cs1_col_ch0 + */ +#define SYS_REG_VERSION GENMASK(31, 28) +#define SYS_REG_EXTEND_DDRTYPE GENMASK(13, 12) +#define SYS_REG_EXTEND_CS0_ROW_SHIFT(ch) (5 + (ch) * 2) +#define SYS_REG_EXTEND_CS0_ROW_MASK 1 +#define SYS_REG_EXTEND_CS1_ROW_SHIFT(ch) (4 + (ch) * 2) +#define SYS_REG_EXTEND_CS1_ROW_MASK 1 +#define SYS_REG_CS1_COL_SHIFT(ch) (0 + (ch) * 2) +#define SYS_REG_CS1_COL_MASK 3 + +resource_size_t rk3399_ram0_size(void); +resource_size_t rk3568_ram0_size(void); + +#endif |