nand: Update SPL MXS NAND mini driver
Update the mini driver to add support for getting ecc info from ONFI and
support read image data from page unaligned NAND address.
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/drivers/mtd/nand/raw/mxs_nand_spl.c b/drivers/mtd/nand/raw/mxs_nand_spl.c
index a653dfa..ae50cc3 100644
--- a/drivers/mtd/nand/raw/mxs_nand_spl.c
+++ b/drivers/mtd/nand/raw/mxs_nand_spl.c
@@ -1,6 +1,7 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2014 Gateworks Corporation
+ * Copyright 2019 NXP
* Author: Tim Harvey <tharvey@gateworks.com>
*/
#include <common.h>
@@ -38,6 +39,12 @@
if (command == NAND_CMD_READ0) {
chip->cmd_ctrl(mtd, NAND_CMD_READSTART, NAND_CLE);
chip->cmd_ctrl(mtd, NAND_CMD_NONE, 0);
+ } else if (command == NAND_CMD_RNDOUT) {
+ /* No ready / busy check necessary */
+ chip->cmd_ctrl(mtd, NAND_CMD_RNDOUTSTART,
+ NAND_NCE | NAND_CLE);
+ chip->cmd_ctrl(mtd, NAND_CMD_NONE,
+ NAND_NCE);
}
/* wait for nand ready */
@@ -212,23 +219,39 @@
unsigned int page;
unsigned int nand_page_per_block;
unsigned int sz = 0;
+ u8 *page_buf = NULL;
+ u32 page_off;
chip = mtd_to_nand(mtd);
if (!chip->numchips)
return -ENODEV;
+
+ page_buf = malloc(mtd->writesize);
+ if (!page_buf)
+ return -ENOMEM;
+
page = offs >> chip->page_shift;
+ page_off = offs & (mtd->writesize - 1);
nand_page_per_block = mtd->erasesize / mtd->writesize;
- debug("%s offset:0x%08x len:%d page:%d\n", __func__, offs, size, page);
+ debug("%s offset:0x%08x len:%d page:%x\n", __func__, offs, size, page);
- size = roundup(size, mtd->writesize);
- while (sz < size) {
- if (mxs_read_page_ecc(mtd, buf, page) < 0)
+ while (size) {
+ if (mxs_read_page_ecc(mtd, page_buf, page) < 0)
return -1;
- sz += mtd->writesize;
+
+ if (size > (mtd->writesize - page_off))
+ sz = (mtd->writesize - page_off);
+ else
+ sz = size;
+
+ memcpy(buf, page_buf + page_off, sz);
+
offs += mtd->writesize;
page++;
- buf += mtd->writesize;
+ buf += (mtd->writesize - page_off);
+ page_off = 0;
+ size -= sz;
/*
* Check if we have crossed a block boundary, and if so
@@ -242,12 +265,16 @@
while (is_badblock(mtd, offs, 1)) {
page = page + nand_page_per_block;
/* Check i we've reached the end of flash. */
- if (page >= mtd->size >> chip->page_shift)
+ if (page >= mtd->size >> chip->page_shift) {
+ free(page_buf);
return -ENOMEM;
+ }
}
}
}
+ free(page_buf);
+
return 0;
}