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bsps/xnandpsu: Allow manipulation of BBT

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Expose functions to directly manipulate the bad block table (BBT). These
functions are necessary to correct possible BBT corruption caused by
bugs in the BBT management layer.
This commit is contained in:
Kinsey Moore
2023-12-01 13:18:28 -06:00
committed by Joel Sherrill
parent 437053282d
commit 3798c5735d
2 changed files with 87 additions and 0 deletions
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46
bsps/include/dev/nand/xnandpsu.h
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@@ -564,6 +564,52 @@ s32 XNandPsu_ScanBbt(XNandPsu *InstancePtr);
s32 XNandPsu_MarkBlockBad(XNandPsu *InstancePtr, u32 Block);
#ifdef __rtems__
#include <stdbool.h>
/*****************************************************************************/
/**
* This function changes the marking of a block in the RAM based Bad Block Table(BBT). It
* also updates the Bad Block Table(BBT) in the flash if necessary.
*
* @param InstancePtr is the pointer to the XNandPsu instance.
* @param Block is the block number.
*
* @return
* - XST_SUCCESS if successful.
* - XST_FAILURE if fail.
*
******************************************************************************/
s32 XNandPsu_MarkBlock(XNandPsu *InstancePtr, u32 Block, u8 BlockMark);
/*****************************************************************************/
/**
* This function changes the marking of a block in the RAM based Bad Block Table(BBT). It
* does not update the Bad Block Table(BBT) in the flash.
*
* @param InstancePtr is the pointer to the XNandPsu instance.
* @param Block is the block number.
*
* @return
* - true if the BBT needs updating.
* - false if the BBT does not need updating.
*
******************************************************************************/
bool XNandPsu_StageBlockMark(XNandPsu *InstancePtr, u32 Block, u8 BlockMark);
/*****************************************************************************/
/**
* This function updates the primary and mirror Bad Block Table(BBT) in the
* flash.
*
* @param InstancePtr is the pointer to the XNandPsu instance.
* @return
* - XST_SUCCESS if successful.
* - XST_FAILURE if fail.
*
******************************************************************************/
s32 XNandPsu_UpdateBbt(XNandPsu *InstancePtr, u32 Target);
#endif
void XNandPsu_EnableDmaMode(XNandPsu *InstancePtr);
void XNandPsu_DisableDmaMode(XNandPsu *InstancePtr);