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63b29d8082
If ecc chunk data size is 512 and oobsize is bigger than 512, there is
a chance that block_mark_bit_offset conflicts with bch ecc area.
The following graph is modified from kernel gpmi-nand.c driver with
each data block 512 bytes. We can see that Block Mark conflicts with
ecc area from bch view. We can enlarge the ecc chunk size to avoid
this problem to those oobsize which is larger than 512.
| P |
|<----------------------------------------------------------------->|
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| (Block Mark) |
| P' | | | |
|<--------------------------------------------------->| D | | O'|
| |<--------->| |<->|
V V V V V
+---+--------------+-+--------------+-+--------------+-+----------+-+---+
| M | data |E| data |E| data |E| data |E| |
+---+--------------+-+--------------+-+--------------+-+----------+-+---+
^ ^
| O |
|<---------------->|
P : the page size for BCH module.
E : The ECC strength.
G : the length of Galois Field.
N : The chunk count of per page.
M : the metasize of per page.
C : the ecc chunk size, aka the "data" above.
P': the nand chip's page size.
O : the nand chip's oob size.
O': the free oob.
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Tested-By: Tim Harvey <tharvey@gateworks.com>
230 lines
8.7 KiB
C
230 lines
8.7 KiB
C
/*
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* Freescale i.MX28 BCH Register Definitions
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*
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* Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
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* on behalf of DENX Software Engineering GmbH
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*
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* Based on code from LTIB:
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* Copyright 2008-2010 Freescale Semiconductor, Inc. All Rights Reserved.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __MX28_REGS_BCH_H__
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#define __MX28_REGS_BCH_H__
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#include <asm/imx-common/regs-common.h>
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#ifndef __ASSEMBLY__
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struct mxs_bch_regs {
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mxs_reg_32(hw_bch_ctrl)
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mxs_reg_32(hw_bch_status0)
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mxs_reg_32(hw_bch_mode)
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mxs_reg_32(hw_bch_encodeptr)
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mxs_reg_32(hw_bch_dataptr)
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mxs_reg_32(hw_bch_metaptr)
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uint32_t reserved[4];
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mxs_reg_32(hw_bch_layoutselect)
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mxs_reg_32(hw_bch_flash0layout0)
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mxs_reg_32(hw_bch_flash0layout1)
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mxs_reg_32(hw_bch_flash1layout0)
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mxs_reg_32(hw_bch_flash1layout1)
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mxs_reg_32(hw_bch_flash2layout0)
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mxs_reg_32(hw_bch_flash2layout1)
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mxs_reg_32(hw_bch_flash3layout0)
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mxs_reg_32(hw_bch_flash3layout1)
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mxs_reg_32(hw_bch_dbgkesread)
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mxs_reg_32(hw_bch_dbgcsferead)
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mxs_reg_32(hw_bch_dbgsyndegread)
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mxs_reg_32(hw_bch_dbgahbmread)
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mxs_reg_32(hw_bch_blockname)
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mxs_reg_32(hw_bch_version)
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};
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#endif
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#define BCH_CTRL_SFTRST (1 << 31)
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#define BCH_CTRL_CLKGATE (1 << 30)
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#define BCH_CTRL_DEBUGSYNDROME (1 << 22)
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#define BCH_CTRL_M2M_LAYOUT_MASK (0x3 << 18)
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#define BCH_CTRL_M2M_LAYOUT_OFFSET 18
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#define BCH_CTRL_M2M_ENCODE (1 << 17)
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#define BCH_CTRL_M2M_ENABLE (1 << 16)
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#define BCH_CTRL_DEBUG_STALL_IRQ_EN (1 << 10)
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#define BCH_CTRL_COMPLETE_IRQ_EN (1 << 8)
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#define BCH_CTRL_BM_ERROR_IRQ (1 << 3)
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#define BCH_CTRL_DEBUG_STALL_IRQ (1 << 2)
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#define BCH_CTRL_COMPLETE_IRQ (1 << 0)
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#define BCH_STATUS0_HANDLE_MASK (0xfff << 20)
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#define BCH_STATUS0_HANDLE_OFFSET 20
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#define BCH_STATUS0_COMPLETED_CE_MASK (0xf << 16)
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#define BCH_STATUS0_COMPLETED_CE_OFFSET 16
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#define BCH_STATUS0_STATUS_BLK0_MASK (0xff << 8)
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#define BCH_STATUS0_STATUS_BLK0_OFFSET 8
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#define BCH_STATUS0_STATUS_BLK0_ZERO (0x00 << 8)
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#define BCH_STATUS0_STATUS_BLK0_ERROR1 (0x01 << 8)
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#define BCH_STATUS0_STATUS_BLK0_ERROR2 (0x02 << 8)
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#define BCH_STATUS0_STATUS_BLK0_ERROR3 (0x03 << 8)
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#define BCH_STATUS0_STATUS_BLK0_ERROR4 (0x04 << 8)
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#define BCH_STATUS0_STATUS_BLK0_UNCORRECTABLE (0xfe << 8)
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#define BCH_STATUS0_STATUS_BLK0_ERASED (0xff << 8)
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#define BCH_STATUS0_ALLONES (1 << 4)
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#define BCH_STATUS0_CORRECTED (1 << 3)
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#define BCH_STATUS0_UNCORRECTABLE (1 << 2)
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#define BCH_MODE_ERASE_THRESHOLD_MASK 0xff
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#define BCH_MODE_ERASE_THRESHOLD_OFFSET 0
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#define BCH_ENCODEPTR_ADDR_MASK 0xffffffff
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#define BCH_ENCODEPTR_ADDR_OFFSET 0
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#define BCH_DATAPTR_ADDR_MASK 0xffffffff
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#define BCH_DATAPTR_ADDR_OFFSET 0
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#define BCH_METAPTR_ADDR_MASK 0xffffffff
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#define BCH_METAPTR_ADDR_OFFSET 0
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#define BCH_LAYOUTSELECT_CS15_SELECT_MASK (0x3 << 30)
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#define BCH_LAYOUTSELECT_CS15_SELECT_OFFSET 30
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#define BCH_LAYOUTSELECT_CS14_SELECT_MASK (0x3 << 28)
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#define BCH_LAYOUTSELECT_CS14_SELECT_OFFSET 28
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#define BCH_LAYOUTSELECT_CS13_SELECT_MASK (0x3 << 26)
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#define BCH_LAYOUTSELECT_CS13_SELECT_OFFSET 26
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#define BCH_LAYOUTSELECT_CS12_SELECT_MASK (0x3 << 24)
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#define BCH_LAYOUTSELECT_CS12_SELECT_OFFSET 24
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#define BCH_LAYOUTSELECT_CS11_SELECT_MASK (0x3 << 22)
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#define BCH_LAYOUTSELECT_CS11_SELECT_OFFSET 22
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#define BCH_LAYOUTSELECT_CS10_SELECT_MASK (0x3 << 20)
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#define BCH_LAYOUTSELECT_CS10_SELECT_OFFSET 20
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#define BCH_LAYOUTSELECT_CS9_SELECT_MASK (0x3 << 18)
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#define BCH_LAYOUTSELECT_CS9_SELECT_OFFSET 18
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#define BCH_LAYOUTSELECT_CS8_SELECT_MASK (0x3 << 16)
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#define BCH_LAYOUTSELECT_CS8_SELECT_OFFSET 16
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#define BCH_LAYOUTSELECT_CS7_SELECT_MASK (0x3 << 14)
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#define BCH_LAYOUTSELECT_CS7_SELECT_OFFSET 14
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#define BCH_LAYOUTSELECT_CS6_SELECT_MASK (0x3 << 12)
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#define BCH_LAYOUTSELECT_CS6_SELECT_OFFSET 12
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#define BCH_LAYOUTSELECT_CS5_SELECT_MASK (0x3 << 10)
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#define BCH_LAYOUTSELECT_CS5_SELECT_OFFSET 10
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#define BCH_LAYOUTSELECT_CS4_SELECT_MASK (0x3 << 8)
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#define BCH_LAYOUTSELECT_CS4_SELECT_OFFSET 8
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#define BCH_LAYOUTSELECT_CS3_SELECT_MASK (0x3 << 6)
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#define BCH_LAYOUTSELECT_CS3_SELECT_OFFSET 6
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#define BCH_LAYOUTSELECT_CS2_SELECT_MASK (0x3 << 4)
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#define BCH_LAYOUTSELECT_CS2_SELECT_OFFSET 4
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#define BCH_LAYOUTSELECT_CS1_SELECT_MASK (0x3 << 2)
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#define BCH_LAYOUTSELECT_CS1_SELECT_OFFSET 2
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#define BCH_LAYOUTSELECT_CS0_SELECT_MASK (0x3 << 0)
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#define BCH_LAYOUTSELECT_CS0_SELECT_OFFSET 0
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#define BCH_FLASHLAYOUT0_NBLOCKS_MASK (0xff << 24)
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#define BCH_FLASHLAYOUT0_NBLOCKS_OFFSET 24
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#define BCH_FLASHLAYOUT0_META_SIZE_MASK (0xff << 16)
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#define BCH_FLASHLAYOUT0_META_SIZE_OFFSET 16
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#if defined(CONFIG_MX6)
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#define BCH_FLASHLAYOUT0_ECC0_MASK (0x1f << 11)
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#define BCH_FLASHLAYOUT0_ECC0_OFFSET 11
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#else
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#define BCH_FLASHLAYOUT0_ECC0_MASK (0xf << 12)
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#define BCH_FLASHLAYOUT0_ECC0_OFFSET 12
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#endif
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#define BCH_FLASHLAYOUT0_ECC0_NONE (0x0 << 12)
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#define BCH_FLASHLAYOUT0_ECC0_ECC2 (0x1 << 12)
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#define BCH_FLASHLAYOUT0_ECC0_ECC4 (0x2 << 12)
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#define BCH_FLASHLAYOUT0_ECC0_ECC6 (0x3 << 12)
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#define BCH_FLASHLAYOUT0_ECC0_ECC8 (0x4 << 12)
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#define BCH_FLASHLAYOUT0_ECC0_ECC10 (0x5 << 12)
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#define BCH_FLASHLAYOUT0_ECC0_ECC12 (0x6 << 12)
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#define BCH_FLASHLAYOUT0_ECC0_ECC14 (0x7 << 12)
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#define BCH_FLASHLAYOUT0_ECC0_ECC16 (0x8 << 12)
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#define BCH_FLASHLAYOUT0_ECC0_ECC18 (0x9 << 12)
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#define BCH_FLASHLAYOUT0_ECC0_ECC20 (0xa << 12)
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#define BCH_FLASHLAYOUT0_ECC0_ECC22 (0xb << 12)
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#define BCH_FLASHLAYOUT0_ECC0_ECC24 (0xc << 12)
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#define BCH_FLASHLAYOUT0_ECC0_ECC26 (0xd << 12)
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#define BCH_FLASHLAYOUT0_ECC0_ECC28 (0xe << 12)
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#define BCH_FLASHLAYOUT0_ECC0_ECC30 (0xf << 12)
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#define BCH_FLASHLAYOUT0_ECC0_ECC32 (0x10 << 12)
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#define BCH_FLASHLAYOUT0_GF13_0_GF14_1 (1 << 10)
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#define BCH_FLASHLAYOUT0_GF13_0_GF14_1_OFFSET 10
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#define BCH_FLASHLAYOUT0_DATA0_SIZE_MASK 0xfff
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#define BCH_FLASHLAYOUT0_DATA0_SIZE_OFFSET 0
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#define BCH_FLASHLAYOUT1_PAGE_SIZE_MASK (0xffff << 16)
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#define BCH_FLASHLAYOUT1_PAGE_SIZE_OFFSET 16
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#if defined(CONFIG_MX6)
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#define BCH_FLASHLAYOUT1_ECCN_MASK (0x1f << 11)
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#define BCH_FLASHLAYOUT1_ECCN_OFFSET 11
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#else
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#define BCH_FLASHLAYOUT1_ECCN_MASK (0xf << 12)
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#define BCH_FLASHLAYOUT1_ECCN_OFFSET 12
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#endif
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#define BCH_FLASHLAYOUT1_ECCN_NONE (0x0 << 12)
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#define BCH_FLASHLAYOUT1_ECCN_ECC2 (0x1 << 12)
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#define BCH_FLASHLAYOUT1_ECCN_ECC4 (0x2 << 12)
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#define BCH_FLASHLAYOUT1_ECCN_ECC6 (0x3 << 12)
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#define BCH_FLASHLAYOUT1_ECCN_ECC8 (0x4 << 12)
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#define BCH_FLASHLAYOUT1_ECCN_ECC10 (0x5 << 12)
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#define BCH_FLASHLAYOUT1_ECCN_ECC12 (0x6 << 12)
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#define BCH_FLASHLAYOUT1_ECCN_ECC14 (0x7 << 12)
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#define BCH_FLASHLAYOUT1_ECCN_ECC16 (0x8 << 12)
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#define BCH_FLASHLAYOUT1_ECCN_ECC18 (0x9 << 12)
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#define BCH_FLASHLAYOUT1_ECCN_ECC20 (0xa << 12)
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#define BCH_FLASHLAYOUT1_ECCN_ECC22 (0xb << 12)
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#define BCH_FLASHLAYOUT1_ECCN_ECC24 (0xc << 12)
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#define BCH_FLASHLAYOUT1_ECCN_ECC26 (0xd << 12)
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#define BCH_FLASHLAYOUT1_ECCN_ECC28 (0xe << 12)
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#define BCH_FLASHLAYOUT1_ECCN_ECC30 (0xf << 12)
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#define BCH_FLASHLAYOUT1_ECCN_ECC32 (0x10 << 12)
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#define BCH_FLASHLAYOUT1_GF13_0_GF14_1 (1 << 10)
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#define BCH_FLASHLAYOUT1_GF13_0_GF14_1_OFFSET 10
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#define BCH_FLASHLAYOUT1_DATAN_SIZE_MASK 0xfff
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#define BCH_FLASHLAYOUT1_DATAN_SIZE_OFFSET 0
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#define BCH_DEBUG0_RSVD1_MASK (0x1f << 27)
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#define BCH_DEBUG0_RSVD1_OFFSET 27
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#define BCH_DEBUG0_ROM_BIST_ENABLE (1 << 26)
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#define BCH_DEBUG0_ROM_BIST_COMPLETE (1 << 25)
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#define BCH_DEBUG0_KES_DEBUG_SYNDROME_SYMBOL_MASK (0x1ff << 16)
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#define BCH_DEBUG0_KES_DEBUG_SYNDROME_SYMBOL_OFFSET 16
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#define BCH_DEBUG0_KES_DEBUG_SYNDROME_SYMBOL_NORMAL (0x0 << 16)
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#define BCH_DEBUG0_KES_DEBUG_SYNDROME_SYMBOL_TEST_MODE (0x1 << 16)
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#define BCH_DEBUG0_KES_DEBUG_SHIFT_SYND (1 << 15)
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#define BCH_DEBUG0_KES_DEBUG_PAYLOAD_FLAG (1 << 14)
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#define BCH_DEBUG0_KES_DEBUG_MODE4K (1 << 13)
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#define BCH_DEBUG0_KES_DEBUG_KICK (1 << 12)
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#define BCH_DEBUG0_KES_STANDALONE (1 << 11)
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#define BCH_DEBUG0_KES_DEBUG_STEP (1 << 10)
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#define BCH_DEBUG0_KES_DEBUG_STALL (1 << 9)
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#define BCH_DEBUG0_BM_KES_TEST_BYPASS (1 << 8)
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#define BCH_DEBUG0_RSVD0_MASK (0x3 << 6)
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#define BCH_DEBUG0_RSVD0_OFFSET 6
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#define BCH_DEBUG0_DEBUG_REG_SELECT_MASK 0x3f
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#define BCH_DEBUG0_DEBUG_REG_SELECT_OFFSET 0
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#define BCH_DBGKESREAD_VALUES_MASK 0xffffffff
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#define BCH_DBGKESREAD_VALUES_OFFSET 0
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#define BCH_DBGCSFEREAD_VALUES_MASK 0xffffffff
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#define BCH_DBGCSFEREAD_VALUES_OFFSET 0
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#define BCH_DBGSYNDGENREAD_VALUES_MASK 0xffffffff
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#define BCH_DBGSYNDGENREAD_VALUES_OFFSET 0
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#define BCH_DBGAHBMREAD_VALUES_MASK 0xffffffff
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#define BCH_DBGAHBMREAD_VALUES_OFFSET 0
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#define BCH_BLOCKNAME_NAME_MASK 0xffffffff
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#define BCH_BLOCKNAME_NAME_OFFSET 0
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#define BCH_VERSION_MAJOR_MASK (0xff << 24)
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#define BCH_VERSION_MAJOR_OFFSET 24
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#define BCH_VERSION_MINOR_MASK (0xff << 16)
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#define BCH_VERSION_MINOR_OFFSET 16
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#define BCH_VERSION_STEP_MASK 0xffff
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#define BCH_VERSION_STEP_OFFSET 0
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#endif /* __MX28_REGS_BCH_H__ */
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