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Eraser select for non-uniform 4k devices #74

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Eraser select for non-uniform 4k devices #74

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7a334af
Select next eraser if uniform 4k erase not supported
davidk88 Aug 31, 2022
e703532
Update sfud.c
davidk88 Aug 31, 2022
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12 changes: 9 additions & 3 deletions sfud/src/sfud.c
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Original file line number Diff line number Diff line change
Expand Up @@ -285,9 +285,15 @@ static sfud_err hardware_init(sfud_flash *flash) {
flash->chip.write_mode = SFUD_WM_PAGE_256B;
}
/* find the the smallest erase sector size for eraser. then will use this size for erase granularity */
flash->chip.erase_gran = flash->sfdp.eraser[0].size;
flash->chip.erase_gran_cmd = flash->sfdp.eraser[0].cmd;
for (i = 1; i < SFUD_SFDP_ERASE_TYPE_MAX_NUM; i++) {
i = 0;
/* if uniform 4k not supported choose next */
if(flash->sfdp.eraser[0].size == 4096 && flash->sfdp.erase_4k == 0) {
i = 1;
}
flash->chip.erase_gran = flash->sfdp.eraser[i].size;
flash->chip.erase_gran_cmd = flash->sfdp.eraser[i].cmd;
i++;
for (; i < SFUD_SFDP_ERASE_TYPE_MAX_NUM; i++) {
if (flash->sfdp.eraser[i].size != 0 && flash->chip.erase_gran > flash->sfdp.eraser[i].size) {
flash->chip.erase_gran = flash->sfdp.eraser[i].size;
flash->chip.erase_gran_cmd = flash->sfdp.eraser[i].cmd;
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