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https://github.com/brain-hackers/u-boot-brain
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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2017 Rockchip Electronics Co., Ltd.
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*/
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#ifndef _ASM_ARCH_SDRAM_COMMON_H
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#define _ASM_ARCH_SDRAM_COMMON_H
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/*
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* sys_reg bitfield struct
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* [31] row_3_4_ch1
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* [30] row_3_4_ch0
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* [29:28] chinfo
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* [27] rank_ch1
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* [26:25] col_ch1
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* [24] bk_ch1
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* [23:22] cs0_row_ch1
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* [21:20] cs1_row_ch1
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* [19:18] bw_ch1
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* [17:16] dbw_ch1;
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* [15:13] ddrtype
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* [12] channelnum
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* [11] rank_ch0
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* [10:9] col_ch0
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* [8] bk_ch0
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* [7:6] cs0_row_ch0
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* [5:4] cs1_row_ch0
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* [3:2] bw_ch0
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* [1:0] dbw_ch0
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*/
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#define SYS_REG_DDRTYPE_SHIFT 13
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#define SYS_REG_DDRTYPE_MASK 7
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#define SYS_REG_NUM_CH_SHIFT 12
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#define SYS_REG_NUM_CH_MASK 1
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#define SYS_REG_ROW_3_4_SHIFT(ch) (30 + (ch))
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#define SYS_REG_ROW_3_4_MASK 1
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#define SYS_REG_CHINFO_SHIFT(ch) (28 + (ch))
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#define SYS_REG_RANK_SHIFT(ch) (11 + (ch) * 16)
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#define SYS_REG_RANK_MASK 1
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#define SYS_REG_COL_SHIFT(ch) (9 + (ch) * 16)
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#define SYS_REG_COL_MASK 3
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#define SYS_REG_BK_SHIFT(ch) (8 + (ch) * 16)
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#define SYS_REG_BK_MASK 1
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#define SYS_REG_CS0_ROW_SHIFT(ch) (6 + (ch) * 16)
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#define SYS_REG_CS0_ROW_MASK 3
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#define SYS_REG_CS1_ROW_SHIFT(ch) (4 + (ch) * 16)
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#define SYS_REG_CS1_ROW_MASK 3
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#define SYS_REG_BW_SHIFT(ch) (2 + (ch) * 16)
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#define SYS_REG_BW_MASK 3
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#define SYS_REG_DBW_SHIFT(ch) ((ch) * 16)
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#define SYS_REG_DBW_MASK 3
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/* Get sdram size decode from reg */
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size_t rockchip_sdram_size(phys_addr_t reg);
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/* Called by U-Boot board_init_r for Rockchip SoCs */
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int dram_init(void);
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#endif
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