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>
80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2010-2011 Texas Instruments, <www.ti.com>
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* Mansoor Ahamed <mansoor.ahamed@ti.com>
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*
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* Derived from work done by Rohit Choraria <rohitkc@ti.com> for omap3
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*/
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#ifndef __ASM_ARCH_ELM_H
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#define __ASM_ARCH_ELM_H
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/*
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* ELM Module Registers
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*/
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/* ELM registers bit fields */
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#define ELM_SYSCONFIG_SOFTRESET_MASK (0x2)
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#define ELM_SYSCONFIG_SOFTRESET (0x2)
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#define ELM_SYSSTATUS_RESETDONE_MASK (0x1)
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#define ELM_SYSSTATUS_RESETDONE (0x1)
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#define ELM_LOCATION_CONFIG_ECC_BCH_LEVEL_MASK (0x3)
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#define ELM_LOCATION_CONFIG_ECC_SIZE_MASK (0x7FF0000)
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#define ELM_LOCATION_CONFIG_ECC_SIZE_POS (16)
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#define ELM_SYNDROME_FRAGMENT_6_SYNDROME_VALID (0x00010000)
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#define ELM_LOCATION_STATUS_ECC_CORRECTABLE_MASK (0x100)
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#define ELM_LOCATION_STATUS_ECC_NB_ERRORS_MASK (0x1F)
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#define ELM_MAX_CHANNELS 8
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#define ELM_MAX_ERROR_COUNT 16
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#ifndef __ASSEMBLY__
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enum bch_level {
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BCH_4_BIT = 0,
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BCH_8_BIT,
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BCH_16_BIT
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};
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/* BCH syndrome registers */
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struct syndrome {
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u32 syndrome_fragment_x[7]; /* 0x400, 0x404.... 0x418 */
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u8 res1[36]; /* 0x41c */
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};
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/* BCH error status & location register */
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struct location {
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u32 location_status; /* 0x800 */
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u8 res1[124]; /* 0x804 */
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u32 error_location_x[ELM_MAX_ERROR_COUNT]; /* 0x880, 0x980, .. */
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u8 res2[64]; /* 0x8c0 */
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};
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/* BCH ELM register map - do not try to allocate memmory for this structure.
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* We have used plenty of reserved variables to fill the slots in the ELM
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* register memory map.
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* Directly initialize the struct pointer to ELM base address.
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*/
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struct elm {
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u32 rev; /* 0x000 */
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u8 res1[12]; /* 0x004 */
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u32 sysconfig; /* 0x010 */
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u32 sysstatus; /* 0x014 */
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u32 irqstatus; /* 0x018 */
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u32 irqenable; /* 0x01c */
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u32 location_config; /* 0x020 */
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u8 res2[92]; /* 0x024 */
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u32 page_ctrl; /* 0x080 */
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u8 res3[892]; /* 0x084 */
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struct syndrome syndrome_fragments[ELM_MAX_CHANNELS]; /* 0x400,0x420 */
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u8 res4[512]; /* 0x600 */
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struct location error_location[ELM_MAX_CHANNELS]; /* 0x800,0x900 ... */
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};
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int elm_check_error(u8 *syndrome, enum bch_level bch_type, u32 *error_count,
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u32 *error_locations);
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int elm_config(enum bch_level level);
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void elm_reset(void);
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void elm_init(void);
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#endif /* __ASSEMBLY__ */
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#endif /* __ASM_ARCH_ELM_H */
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