+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2014 Panasonic Corporation
- *
- * SPDX-License-Identifier: GPL-2.0+
+ * Copyright (C) 2014-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
*/
#include <common.h>
#include <asm/io.h>
#include <asm/unaligned.h>
-#include <linux/mtd/nand.h>
+#include <linux/mtd/rawnand.h>
#include "denali.h"
+#define DENALI_MAP01 (1 << 26) /* read/write pages in PIO */
+#define DENALI_MAP10 (2 << 26) /* high-level control plane */
+
+#define INDEX_CTRL_REG 0x0
+#define INDEX_DATA_REG 0x10
+
#define SPARE_ACCESS 0x41
#define MAIN_ACCESS 0x42
#define PIPELINE_ACCESS 0x2000
(void __iomem *)CONFIG_SYS_NAND_REGS_BASE;
static const int flash_bank;
-static uint8_t page_buffer[NAND_MAX_PAGESIZE];
static int page_size, oob_size, pages_per_block;
static void index_addr(uint32_t address, uint32_t data)
do {
intr_status = readl(denali_flash_reg + INTR_STATUS(flash_bank));
- if (intr_status & INTR_STATUS__ECC_UNCOR_ERR) {
+ if (intr_status & INTR__ECC_UNCOR_ERR) {
debug("Uncorrected ECC detected\n");
- return -EIO;
+ return -EBADMSG;
}
if (intr_status & irq_mask)
addr = BANK(flash_bank) | page;
/* setup the acccess type */
- cmd = MODE_10 | addr;
+ cmd = DENALI_MAP10 | addr;
index_addr(cmd, access_type);
/* setup the pipeline command */
index_addr(cmd, PIPELINE_ACCESS | page_count);
- cmd = MODE_01 | addr;
+ cmd = DENALI_MAP01 | addr;
writel(cmd, denali_flash_mem + INDEX_CTRL_REG);
- return wait_for_irq(INTR_STATUS__LOAD_COMP);
+ return wait_for_irq(INTR__LOAD_COMP);
}
static int nand_read_oob(void *buf, int page)
return 0;
}
-static int nand_block_isbad(int block)
+static int nand_block_isbad(void *buf, int block)
{
int ret;
- ret = nand_read_oob(page_buffer, block * pages_per_block);
+ ret = nand_read_oob(buf, block * pages_per_block);
if (ret < 0)
return ret;
- return page_buffer[CONFIG_SYS_NAND_BAD_BLOCK_POS] != 0xff;
+ return *((uint8_t *)buf + CONFIG_SYS_NAND_BAD_BLOCK_POS) != 0xff;
}
/* nand_init() - initialize data to make nand usable by SPL */
while (size) {
if (force_bad_block_check || page == 0) {
- ret = nand_block_isbad(block);
+ ret = nand_block_isbad(dst, block);
if (ret < 0)
return ret;
force_bad_block_check = 0;
- if (unlikely(column || size < page_size)) {
- /* Partial page read */
- ret = nand_read_page(page_buffer,
- block * pages_per_block + page);
- if (ret < 0)
- return ret;
+ ret = nand_read_page(dst, block * pages_per_block + page);
+ if (ret < 0)
+ return ret;
- readlen = min(page_size - column, (int)size);
- memcpy(dst, page_buffer, readlen);
+ readlen = min(page_size - column, (int)size);
+ if (unlikely(column)) {
+ /* Partial page read */
+ memmove(dst, dst + column, readlen);
column = 0;
- } else {
- ret = nand_read_page(dst,
- block * pages_per_block + page);
- if (ret < 0)
- return ret;
-
- readlen = page_size;
}
size -= readlen;