mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
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>
91 lines
2.7 KiB
C
91 lines
2.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) Marvell International Ltd. and its affiliates
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*/
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#ifndef _XOR_H
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#define _XOR_H
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#define SRAM_BASE 0x40000000
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#include "ddr3_hws_hw_training_def.h"
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#define MV_XOR_MAX_UNIT 2 /* XOR unit == XOR engine */
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#define MV_XOR_MAX_CHAN 4 /* total channels for all units */
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#define MV_XOR_MAX_CHAN_PER_UNIT 2 /* channels for units */
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#define MV_IS_POWER_OF_2(num) (((num) != 0) && (((num) & ((num) - 1)) == 0))
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/*
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* This structure describes address space window. Window base can be
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* 64 bit, window size up to 4GB
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*/
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struct addr_win {
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u32 base_low; /* 32bit base low */
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u32 base_high; /* 32bit base high */
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u32 size; /* 32bit size */
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};
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/* This structure describes SoC units address decode window */
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struct unit_win_info {
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struct addr_win addr_win; /* An address window */
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int enable; /* Address decode window is enabled/disabled */
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u8 attrib; /* chip select attributes */
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u8 target_id; /* Target Id of this MV_TARGET */
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};
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/*
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* This enumerator describes the type of functionality the XOR channel
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* can have while using the same data structures.
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*/
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enum xor_type {
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MV_XOR, /* XOR channel functions as XOR accelerator */
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MV_DMA, /* XOR channel functions as IDMA channel */
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MV_CRC32 /* XOR channel functions as CRC 32 calculator */
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};
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enum mv_state {
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MV_IDLE,
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MV_ACTIVE,
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MV_PAUSED,
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MV_UNDEFINED_STATE
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};
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/*
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* This enumerator describes the set of commands that can be applied on
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* an engine (e.g. IDMA, XOR). Appling a comman depends on the current
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* status (see MV_STATE enumerator)
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*
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* Start can be applied only when status is IDLE
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* Stop can be applied only when status is IDLE, ACTIVE or PAUSED
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* Pause can be applied only when status is ACTIVE
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* Restart can be applied only when status is PAUSED
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*/
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enum mv_command {
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MV_START, /* Start */
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MV_STOP, /* Stop */
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MV_PAUSE, /* Pause */
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MV_RESTART /* Restart */
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};
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enum xor_override_target {
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SRC_ADDR0, /* Source Address #0 Control */
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SRC_ADDR1, /* Source Address #1 Control */
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SRC_ADDR2, /* Source Address #2 Control */
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SRC_ADDR3, /* Source Address #3 Control */
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SRC_ADDR4, /* Source Address #4 Control */
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SRC_ADDR5, /* Source Address #5 Control */
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SRC_ADDR6, /* Source Address #6 Control */
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SRC_ADDR7, /* Source Address #7 Control */
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XOR_DST_ADDR, /* Destination Address Control */
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XOR_NEXT_DESC /* Next Descriptor Address Control */
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};
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enum mv_state mv_xor_state_get(u32 chan);
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void mv_xor_hal_init(u32 xor_chan_num);
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int mv_xor_ctrl_set(u32 chan, u32 xor_ctrl);
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int mv_xor_command_set(u32 chan, enum mv_command command);
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int mv_xor_override_set(u32 chan, enum xor_override_target target, u32 win_num,
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int enable);
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#endif
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