summaryrefslogtreecommitdiff
path: root/drivers/mtd/nand
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mtd/nand')
-rw-r--r--drivers/mtd/nand/Makefile1
-rw-r--r--drivers/mtd/nand/am335x_spl_bch.c49
-rw-r--r--drivers/mtd/nand/atmel_nand.c30
-rw-r--r--drivers/mtd/nand/bfin_nand.c394
-rw-r--r--drivers/mtd/nand/nand_spl_loaders.c104
-rw-r--r--drivers/mtd/nand/nand_spl_simple.c98
6 files changed, 110 insertions, 566 deletions
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index fd4bb66f50d..82358f674bd 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -42,7 +42,6 @@ obj-$(CONFIG_NAND_ECC_BCH) += nand_bch.o
obj-$(CONFIG_NAND_ATMEL) += atmel_nand.o
obj-$(CONFIG_NAND_ARASAN) += arasan_nfc.o
-obj-$(CONFIG_DRIVER_NAND_BFIN) += bfin_nand.o
obj-$(CONFIG_NAND_DAVINCI) += davinci_nand.o
obj-$(CONFIG_NAND_DENALI) += denali.o
obj-$(CONFIG_NAND_FSL_ELBC) += fsl_elbc_nand.o
diff --git a/drivers/mtd/nand/am335x_spl_bch.c b/drivers/mtd/nand/am335x_spl_bch.c
index 5b189a1d8a5..e68b4a5b196 100644
--- a/drivers/mtd/nand/am335x_spl_bch.c
+++ b/drivers/mtd/nand/am335x_spl_bch.c
@@ -198,53 +198,6 @@ static int nand_read_page(int block, int page, void *dst)
return 0;
}
-int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst)
-{
- unsigned int block, lastblock;
- unsigned int page, page_offset;
-
- /*
- * offs has to be aligned to a page address!
- */
- block = offs / CONFIG_SYS_NAND_BLOCK_SIZE;
- lastblock = (offs + size - 1) / CONFIG_SYS_NAND_BLOCK_SIZE;
- page = (offs % CONFIG_SYS_NAND_BLOCK_SIZE) / CONFIG_SYS_NAND_PAGE_SIZE;
- page_offset = offs % CONFIG_SYS_NAND_PAGE_SIZE;
-
- while (block <= lastblock) {
- if (!nand_is_bad_block(block)) {
- /*
- * Skip bad blocks
- */
- while (page < CONFIG_SYS_NAND_PAGE_COUNT) {
- nand_read_page(block, page, dst);
- /*
- * When offs is not aligned to page address the
- * extra offset is copied to dst as well. Copy
- * the image such that its first byte will be
- * at the dst.
- */
- if (unlikely(page_offset)) {
- memmove(dst, dst + page_offset,
- CONFIG_SYS_NAND_PAGE_SIZE);
- dst = (void *)((int)dst - page_offset);
- page_offset = 0;
- }
- dst += CONFIG_SYS_NAND_PAGE_SIZE;
- page++;
- }
-
- page = 0;
- } else {
- lastblock++;
- }
-
- block++;
- }
-
- return 0;
-}
-
/* nand_init() - initialize data to make nand usable by SPL */
void nand_init(void)
{
@@ -269,3 +222,5 @@ void nand_deselect(void)
if (nand_chip.select_chip)
nand_chip.select_chip(mtd, -1);
}
+
+#include "nand_spl_loaders.c"
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 21d5d0e70d0..7c10bfedc6d 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -1380,34 +1380,6 @@ static int nand_read_page(int block, int page, void *dst)
}
#endif /* CONFIG_SPL_NAND_ECC */
-int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst)
-{
- unsigned int block, lastblock;
- unsigned int page;
-
- block = offs / CONFIG_SYS_NAND_BLOCK_SIZE;
- lastblock = (offs + size - 1) / CONFIG_SYS_NAND_BLOCK_SIZE;
- page = (offs % CONFIG_SYS_NAND_BLOCK_SIZE) / CONFIG_SYS_NAND_PAGE_SIZE;
-
- while (block <= lastblock) {
- if (!nand_is_bad_block(block)) {
- while (page < CONFIG_SYS_NAND_PAGE_COUNT) {
- nand_read_page(block, page, dst);
- dst += CONFIG_SYS_NAND_PAGE_SIZE;
- page++;
- }
-
- page = 0;
- } else {
- lastblock++;
- }
-
- block++;
- }
-
- return 0;
-}
-
int at91_nand_wait_ready(struct mtd_info *mtd)
{
struct nand_chip *this = mtd_to_nand(mtd);
@@ -1474,6 +1446,8 @@ void nand_deselect(void)
nand_chip.select_chip(mtd, -1);
}
+#include "nand_spl_loaders.c"
+
#else
#ifndef CONFIG_SYS_NAND_BASE_LIST
diff --git a/drivers/mtd/nand/bfin_nand.c b/drivers/mtd/nand/bfin_nand.c
deleted file mode 100644
index 7c11868cd31..00000000000
--- a/drivers/mtd/nand/bfin_nand.c
+++ /dev/null
@@ -1,394 +0,0 @@
-/*
- * Driver for Blackfin on-chip NAND controller.
- *
- * Enter bugs at http://blackfin.uclinux.org/
- *
- * Copyright (c) 2007-2008 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-/* TODO:
- * - move bit defines into mach-common/bits/nand.h
- * - try and replace all IRQSTAT usage with STAT polling
- * - have software ecc mode use same algo as hw ecc ?
- */
-
-#include <common.h>
-#include <console.h>
-#include <asm/io.h>
-
-#ifdef DEBUG
-# define pr_stamp() printf("%s:%s:%i: here i am\n", __FILE__, __func__, __LINE__)
-#else
-# define pr_stamp()
-#endif
-
-#include <nand.h>
-
-#include <asm/blackfin.h>
-#include <asm/portmux.h>
-
-/* Bit masks for NFC_CTL */
-
-#define WR_DLY 0xf /* Write Strobe Delay */
-#define RD_DLY 0xf0 /* Read Strobe Delay */
-#define NWIDTH 0x100 /* NAND Data Width */
-#define PG_SIZE 0x200 /* Page Size */
-
-/* Bit masks for NFC_STAT */
-
-#define NBUSY 0x1 /* Not Busy */
-#define WB_FULL 0x2 /* Write Buffer Full */
-#define PG_WR_STAT 0x4 /* Page Write Pending */
-#define PG_RD_STAT 0x8 /* Page Read Pending */
-#define WB_EMPTY 0x10 /* Write Buffer Empty */
-
-/* Bit masks for NFC_IRQSTAT */
-
-#define NBUSYIRQ 0x1 /* Not Busy IRQ */
-#define WB_OVF 0x2 /* Write Buffer Overflow */
-#define WB_EDGE 0x4 /* Write Buffer Edge Detect */
-#define RD_RDY 0x8 /* Read Data Ready */
-#define WR_DONE 0x10 /* Page Write Done */
-
-#define NAND_IS_512() (CONFIG_BFIN_NFC_CTL_VAL & 0x200)
-
-/*
- * hardware specific access to control-lines
- */
-static void bfin_nfc_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
-{
- pr_stamp();
-
- if (cmd == NAND_CMD_NONE)
- return;
-
- while (bfin_read_NFC_STAT() & WB_FULL)
- continue;
-
- if (ctrl & NAND_CLE)
- bfin_write_NFC_CMD(cmd);
- else
- bfin_write_NFC_ADDR(cmd);
- SSYNC();
-}
-
-static int bfin_nfc_devready(struct mtd_info *mtd)
-{
- pr_stamp();
- return (bfin_read_NFC_STAT() & NBUSY) ? 1 : 0;
-}
-
-/*
- * PIO mode for buffer writing and reading
- */
-static void bfin_nfc_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
-{
- pr_stamp();
-
- int i;
-
- /*
- * Data reads are requested by first writing to NFC_DATA_RD
- * and then reading back from NFC_READ.
- */
- for (i = 0; i < len; ++i) {
- while (bfin_read_NFC_STAT() & WB_FULL)
- if (ctrlc())
- return;
-
- /* Contents do not matter */
- bfin_write_NFC_DATA_RD(0x0000);
- SSYNC();
-
- while (!(bfin_read_NFC_IRQSTAT() & RD_RDY))
- if (ctrlc())
- return;
-
- buf[i] = bfin_read_NFC_READ();
-
- bfin_write_NFC_IRQSTAT(RD_RDY);
- }
-}
-
-static uint8_t bfin_nfc_read_byte(struct mtd_info *mtd)
-{
- pr_stamp();
-
- uint8_t val;
- bfin_nfc_read_buf(mtd, &val, 1);
- return val;
-}
-
-static void bfin_nfc_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
-{
- pr_stamp();
-
- int i;
-
- for (i = 0; i < len; ++i) {
- while (bfin_read_NFC_STAT() & WB_FULL)
- if (ctrlc())
- return;
-
- bfin_write_NFC_DATA_WR(buf[i]);
- }
-
- /* Wait for the buffer to drain before we return */
- while (!(bfin_read_NFC_STAT() & WB_EMPTY))
- if (ctrlc())
- return;
-}
-
-/*
- * ECC functions
- * These allow the bfin to use the controller's ECC
- * generator block to ECC the data as it passes through
- */
-
-/*
- * ECC error correction function
- */
-static int bfin_nfc_correct_data_256(struct mtd_info *mtd, u_char *dat,
- u_char *read_ecc, u_char *calc_ecc)
-{
- u32 syndrome[5];
- u32 calced, stored;
- unsigned short failing_bit, failing_byte;
- u_char data;
-
- pr_stamp();
-
- calced = calc_ecc[0] | (calc_ecc[1] << 8) | (calc_ecc[2] << 16);
- stored = read_ecc[0] | (read_ecc[1] << 8) | (read_ecc[2] << 16);
-
- syndrome[0] = (calced ^ stored);
-
- /*
- * syndrome 0: all zero
- * No error in data
- * No action
- */
- if (!syndrome[0] || !calced || !stored)
- return 0;
-
- /*
- * sysdrome 0: only one bit is one
- * ECC data was incorrect
- * No action
- */
- if (hweight32(syndrome[0]) == 1)
- return 1;
-
- syndrome[1] = (calced & 0x7FF) ^ (stored & 0x7FF);
- syndrome[2] = (calced & 0x7FF) ^ ((calced >> 11) & 0x7FF);
- syndrome[3] = (stored & 0x7FF) ^ ((stored >> 11) & 0x7FF);
- syndrome[4] = syndrome[2] ^ syndrome[3];
-
- /*
- * sysdrome 0: exactly 11 bits are one, each parity
- * and parity' pair is 1 & 0 or 0 & 1.
- * 1-bit correctable error
- * Correct the error
- */
- if (hweight32(syndrome[0]) == 11 && syndrome[4] == 0x7FF) {
- failing_bit = syndrome[1] & 0x7;
- failing_byte = syndrome[1] >> 0x3;
- data = *(dat + failing_byte);
- data = data ^ (0x1 << failing_bit);
- *(dat + failing_byte) = data;
-
- return 0;
- }
-
- /*
- * sysdrome 0: random data
- * More than 1-bit error, non-correctable error
- * Discard data, mark bad block
- */
-
- return 1;
-}
-
-static int bfin_nfc_correct_data(struct mtd_info *mtd, u_char *dat,
- u_char *read_ecc, u_char *calc_ecc)
-{
- int ret;
-
- pr_stamp();
-
- ret = bfin_nfc_correct_data_256(mtd, dat, read_ecc, calc_ecc);
-
- /* If page size is 512, correct second 256 bytes */
- if (NAND_IS_512()) {
- dat += 256;
- read_ecc += 8;
- calc_ecc += 8;
- ret |= bfin_nfc_correct_data_256(mtd, dat, read_ecc, calc_ecc);
- }
-
- return ret;
-}
-
-static void reset_ecc(void)
-{
- bfin_write_NFC_RST(0x1);
- while (bfin_read_NFC_RST() & 1)
- continue;
-}
-
-static void bfin_nfc_enable_hwecc(struct mtd_info *mtd, int mode)
-{
- reset_ecc();
-}
-
-static int bfin_nfc_calculate_ecc(struct mtd_info *mtd,
- const u_char *dat, u_char *ecc_code)
-{
- u16 ecc0, ecc1;
- u32 code[2];
- u8 *p;
-
- pr_stamp();
-
- /* first 4 bytes ECC code for 256 page size */
- ecc0 = bfin_read_NFC_ECC0();
- ecc1 = bfin_read_NFC_ECC1();
-
- code[0] = (ecc0 & 0x7FF) | ((ecc1 & 0x7FF) << 11);
-
- /* first 3 bytes in ecc_code for 256 page size */
- p = (u8 *) code;
- memcpy(ecc_code, p, 3);
-
- /* second 4 bytes ECC code for 512 page size */
- if (NAND_IS_512()) {
- ecc0 = bfin_read_NFC_ECC2();
- ecc1 = bfin_read_NFC_ECC3();
- code[1] = (ecc0 & 0x7FF) | ((ecc1 & 0x7FF) << 11);
-
- /* second 3 bytes in ecc_code for second 256
- * bytes of 512 page size
- */
- p = (u8 *) (code + 1);
- memcpy((ecc_code + 3), p, 3);
- }
-
- reset_ecc();
-
- return 0;
-}
-
-#ifdef CONFIG_BFIN_NFC_BOOTROM_ECC
-# define BOOTROM_ECC 1
-#else
-# define BOOTROM_ECC 0
-#endif
-
-static uint8_t bbt_pattern[] = { 0xff };
-
-static struct nand_bbt_descr bootrom_bbt = {
- .options = 0,
- .offs = 63,
- .len = 1,
- .pattern = bbt_pattern,
-};
-
-static struct nand_ecclayout bootrom_ecclayout = {
- .eccbytes = 24,
- .eccpos = {
- 0x8 * 0, 0x8 * 0 + 1, 0x8 * 0 + 2,
- 0x8 * 1, 0x8 * 1 + 1, 0x8 * 1 + 2,
- 0x8 * 2, 0x8 * 2 + 1, 0x8 * 2 + 2,
- 0x8 * 3, 0x8 * 3 + 1, 0x8 * 3 + 2,
- 0x8 * 4, 0x8 * 4 + 1, 0x8 * 4 + 2,
- 0x8 * 5, 0x8 * 5 + 1, 0x8 * 5 + 2,
- 0x8 * 6, 0x8 * 6 + 1, 0x8 * 6 + 2,
- 0x8 * 7, 0x8 * 7 + 1, 0x8 * 7 + 2
- },
- .oobfree = {
- { 0x8 * 0 + 3, 5 },
- { 0x8 * 1 + 3, 5 },
- { 0x8 * 2 + 3, 5 },
- { 0x8 * 3 + 3, 5 },
- { 0x8 * 4 + 3, 5 },
- { 0x8 * 5 + 3, 5 },
- { 0x8 * 6 + 3, 5 },
- { 0x8 * 7 + 3, 5 },
- }
-};
-
-/*
- * Board-specific NAND initialization. The following members of the
- * argument are board-specific (per include/linux/mtd/nand.h):
- * - IO_ADDR_R?: address to read the 8 I/O lines of the flash device
- * - IO_ADDR_W?: address to write the 8 I/O lines of the flash device
- * - cmd_ctrl: hardwarespecific function for accesing control-lines
- * - dev_ready: hardwarespecific function for accesing device ready/busy line
- * - enable_hwecc?: function to enable (reset) hardware ecc generator. Must
- * only be provided if a hardware ECC is available
- * - ecc.mode: mode of ecc, see defines
- * - chip_delay: chip dependent delay for transfering data from array to
- * read regs (tR)
- * - options: various chip options. They can partly be set to inform
- * nand_scan about special functionality. See the defines for further
- * explanation
- * Members with a "?" were not set in the merged testing-NAND branch,
- * so they are not set here either.
- */
-int board_nand_init(struct nand_chip *chip)
-{
- const unsigned short pins[] = {
- P_NAND_CE, P_NAND_RB, P_NAND_D0, P_NAND_D1, P_NAND_D2,
- P_NAND_D3, P_NAND_D4, P_NAND_D5, P_NAND_D6, P_NAND_D7,
- P_NAND_WE, P_NAND_RE, P_NAND_CLE, P_NAND_ALE, 0,
- };
-
- pr_stamp();
-
- /* set width/ecc/timings/etc... */
- bfin_write_NFC_CTL(CONFIG_BFIN_NFC_CTL_VAL);
-
- /* clear interrupt status */
- bfin_write_NFC_IRQMASK(0x0);
- bfin_write_NFC_IRQSTAT(0xffff);
-
- /* enable GPIO function enable register */
- peripheral_request_list(pins, "bfin_nand");
-
- chip->cmd_ctrl = bfin_nfc_cmd_ctrl;
- chip->read_buf = bfin_nfc_read_buf;
- chip->write_buf = bfin_nfc_write_buf;
- chip->read_byte = bfin_nfc_read_byte;
-
-#ifdef CONFIG_BFIN_NFC_NO_HW_ECC
-# define ECC_HW 0
-#else
-# define ECC_HW 1
-#endif
- if (ECC_HW) {
- if (BOOTROM_ECC) {
- chip->badblock_pattern = &bootrom_bbt;
- chip->ecc.layout = &bootrom_ecclayout;
- }
- if (!NAND_IS_512()) {
- chip->ecc.bytes = 3;
- chip->ecc.size = 256;
- chip->ecc.strength = 1;
- } else {
- chip->ecc.bytes = 6;
- chip->ecc.size = 512;
- chip->ecc.strength = 2;
- }
- chip->ecc.mode = NAND_ECC_HW;
- chip->ecc.calculate = bfin_nfc_calculate_ecc;
- chip->ecc.correct = bfin_nfc_correct_data;
- chip->ecc.hwctl = bfin_nfc_enable_hwecc;
- } else
- chip->ecc.mode = NAND_ECC_SOFT;
- chip->dev_ready = bfin_nfc_devready;
- chip->chip_delay = 0;
-
- return 0;
-}
diff --git a/drivers/mtd/nand/nand_spl_loaders.c b/drivers/mtd/nand/nand_spl_loaders.c
new file mode 100644
index 00000000000..177c12b5815
--- /dev/null
+++ b/drivers/mtd/nand/nand_spl_loaders.c
@@ -0,0 +1,104 @@
+int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst)
+{
+ unsigned int block, lastblock;
+ unsigned int page, page_offset;
+
+ /* offs has to be aligned to a page address! */
+ block = offs / CONFIG_SYS_NAND_BLOCK_SIZE;
+ lastblock = (offs + size - 1) / CONFIG_SYS_NAND_BLOCK_SIZE;
+ page = (offs % CONFIG_SYS_NAND_BLOCK_SIZE) / CONFIG_SYS_NAND_PAGE_SIZE;
+ page_offset = offs % CONFIG_SYS_NAND_PAGE_SIZE;
+
+ while (block <= lastblock) {
+ if (!nand_is_bad_block(block)) {
+ /* Skip bad blocks */
+ while (page < CONFIG_SYS_NAND_PAGE_COUNT) {
+ nand_read_page(block, page, dst);
+ /*
+ * When offs is not aligned to page address the
+ * extra offset is copied to dst as well. Copy
+ * the image such that its first byte will be
+ * at the dst.
+ */
+ if (unlikely(page_offset)) {
+ memmove(dst, dst + page_offset,
+ CONFIG_SYS_NAND_PAGE_SIZE);
+ dst = (void *)((int)dst - page_offset);
+ page_offset = 0;
+ }
+ dst += CONFIG_SYS_NAND_PAGE_SIZE;
+ page++;
+ }
+
+ page = 0;
+ } else {
+ lastblock++;
+ }
+
+ block++;
+ }
+
+ return 0;
+}
+
+#ifdef CONFIG_SPL_UBI
+/*
+ * Temporary storage for non NAND page aligned and non NAND page sized
+ * reads. Note: This does not support runtime detected FLASH yet, but
+ * that should be reasonably easy to fix by making the buffer large
+ * enough :)
+ */
+static u8 scratch_buf[CONFIG_SYS_NAND_PAGE_SIZE];
+
+/**
+ * nand_spl_read_block - Read data from physical eraseblock into a buffer
+ * @block: Number of the physical eraseblock
+ * @offset: Data offset from the start of @peb
+ * @len: Data size to read
+ * @dst: Address of the destination buffer
+ *
+ * This could be further optimized if we'd have a subpage read
+ * function in the simple code. On NAND which allows subpage reads
+ * this would spare quite some time to readout e.g. the VID header of
+ * UBI.
+ *
+ * Notes:
+ * @offset + @len are not allowed to be larger than a physical
+ * erase block. No sanity check done for simplicity reasons.
+ *
+ * To support runtime detected flash this needs to be extended by
+ * information about the actual flash geometry, but thats beyond the
+ * scope of this effort and for most applications where fast boot is
+ * required it is not an issue anyway.
+ */
+int nand_spl_read_block(int block, int offset, int len, void *dst)
+{
+ int page, read;
+
+ /* Calculate the page number */
+ page = offset / CONFIG_SYS_NAND_PAGE_SIZE;
+
+ /* Offset to the start of a flash page */
+ offset = offset % CONFIG_SYS_NAND_PAGE_SIZE;
+
+ while (len) {
+ /*
+ * Non page aligned reads go to the scratch buffer.
+ * Page aligned reads go directly to the destination.
+ */
+ if (offset || len < CONFIG_SYS_NAND_PAGE_SIZE) {
+ nand_read_page(block, page, scratch_buf);
+ read = min(len, CONFIG_SYS_NAND_PAGE_SIZE - offset);
+ memcpy(dst, scratch_buf + offset, read);
+ offset = 0;
+ } else {
+ nand_read_page(block, page, dst);
+ read = CONFIG_SYS_NAND_PAGE_SIZE;
+ }
+ page++;
+ len -= read;
+ dst += read;
+ }
+ return 0;
+}
+#endif
diff --git a/drivers/mtd/nand/nand_spl_simple.c b/drivers/mtd/nand/nand_spl_simple.c
index 55f48d3a142..56e86d17609 100644
--- a/drivers/mtd/nand/nand_spl_simple.c
+++ b/drivers/mtd/nand/nand_spl_simple.c
@@ -209,102 +209,6 @@ static int nand_read_page(int block, int page, void *dst)
}
#endif
-#ifdef CONFIG_SPL_UBI
-/*
- * Temporary storage for non NAND page aligned and non NAND page sized
- * reads. Note: This does not support runtime detected FLASH yet, but
- * that should be reasonably easy to fix by making the buffer large
- * enough :)
- */
-static u8 scratch_buf[CONFIG_SYS_NAND_PAGE_SIZE];
-
-/**
- * nand_spl_read_block - Read data from physical eraseblock into a buffer
- * @block: Number of the physical eraseblock
- * @offset: Data offset from the start of @peb
- * @len: Data size to read
- * @dst: Address of the destination buffer
- *
- * This could be further optimized if we'd have a subpage read
- * function in the simple code. On NAND which allows subpage reads
- * this would spare quite some time to readout e.g. the VID header of
- * UBI.
- *
- * Notes:
- * @offset + @len are not allowed to be larger than a physical
- * erase block. No sanity check done for simplicity reasons.
- *
- * To support runtime detected flash this needs to be extended by
- * information about the actual flash geometry, but thats beyond the
- * scope of this effort and for most applications where fast boot is
- * required it is not an issue anyway.
- */
-int nand_spl_read_block(int block, int offset, int len, void *dst)
-{
- int page, read;
-
- /* Calculate the page number */
- page = offset / CONFIG_SYS_NAND_PAGE_SIZE;
-
- /* Offset to the start of a flash page */
- offset = offset % CONFIG_SYS_NAND_PAGE_SIZE;
-
- while (len) {
- /*
- * Non page aligned reads go to the scratch buffer.
- * Page aligned reads go directly to the destination.
- */
- if (offset || len < CONFIG_SYS_NAND_PAGE_SIZE) {
- nand_read_page(block, page, scratch_buf);
- read = min(len, CONFIG_SYS_NAND_PAGE_SIZE - offset);
- memcpy(dst, scratch_buf + offset, read);
- offset = 0;
- } else {
- nand_read_page(block, page, dst);
- read = CONFIG_SYS_NAND_PAGE_SIZE;
- }
- page++;
- len -= read;
- dst += read;
- }
- return 0;
-}
-#endif
-
-int nand_spl_load_image(uint32_t offs, unsigned int size, void *dst)
-{
- unsigned int block, lastblock;
- unsigned int page;
-
- /*
- * offs has to be aligned to a page address!
- */
- block = offs / CONFIG_SYS_NAND_BLOCK_SIZE;
- lastblock = (offs + size - 1) / CONFIG_SYS_NAND_BLOCK_SIZE;
- page = (offs % CONFIG_SYS_NAND_BLOCK_SIZE) / CONFIG_SYS_NAND_PAGE_SIZE;
-
- while (block <= lastblock) {
- if (!nand_is_bad_block(block)) {
- /*
- * Skip bad blocks
- */
- while (page < CONFIG_SYS_NAND_PAGE_COUNT) {
- nand_read_page(block, page, dst);
- dst += CONFIG_SYS_NAND_PAGE_SIZE;
- page++;
- }
-
- page = 0;
- } else {
- lastblock++;
- }
-
- block++;
- }
-
- return 0;
-}
-
/* nand_init() - initialize data to make nand usable by SPL */
void nand_init(void)
{
@@ -333,3 +237,5 @@ void nand_deselect(void)
if (nand_chip.select_chip)
nand_chip.select_chip(mtd, -1);
}
+
+#include "nand_spl_loaders.c"
generated by cgit v1.2.3 (git 2.0.4) at 2025-08-06 04:08:15 +0000