nand_spl: remove nand_spl infrastructure

Remove the common infrastructure of nand_spl and
clean-up the code inside ifdef(CONFIG_NAND_U_BOOT)..endif.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

1 files changed, 0 insertions, 285 deletions

diff --git a/nand_spl/nand_boot.c b/nand_spl/nand_boot.c
deleted file mode 100644
index 125e7f3714..0000000000
--- a/nand_spl/nand_boot.c
+++ /dev/null
@@ -1,285 +0,0 @@
-/*
- * (C) Copyright 2006-2008
- * Stefan Roese, DENX Software Engineering, sr@denx.de.
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-
-#include <common.h>
-#include <nand.h>
-#include <asm/io.h>
-
-static int nand_ecc_pos[] = CONFIG_SYS_NAND_ECCPOS;
-
-#define ECCSTEPS	(CONFIG_SYS_NAND_PAGE_SIZE / \
-					CONFIG_SYS_NAND_ECCSIZE)
-#define ECCTOTAL	(ECCSTEPS * CONFIG_SYS_NAND_ECCBYTES)
-
-
-#if (CONFIG_SYS_NAND_PAGE_SIZE <= 512)
-/*
- * NAND command for small page NAND devices (512)
- */
-static int nand_command(struct mtd_info *mtd, int block, int page, int offs, u8 cmd)
-{
-	struct nand_chip *this = mtd->priv;
-	int page_addr = page + block * CONFIG_SYS_NAND_PAGE_COUNT;
-
-	while (!this->dev_ready(mtd))
-		;
-
-	/* Begin command latch cycle */
-	this->cmd_ctrl(mtd, cmd, NAND_CTRL_CLE | NAND_CTRL_CHANGE);
-	/* Set ALE and clear CLE to start address cycle */
-	/* Column address */
-	this->cmd_ctrl(mtd, offs, NAND_CTRL_ALE | NAND_CTRL_CHANGE);
-	this->cmd_ctrl(mtd, page_addr & 0xff, NAND_CTRL_ALE); /* A[16:9] */
-	this->cmd_ctrl(mtd, (page_addr >> 8) & 0xff,
-		       NAND_CTRL_ALE); /* A[24:17] */
-#ifdef CONFIG_SYS_NAND_4_ADDR_CYCLE
-	/* One more address cycle for devices > 32MiB */
-	this->cmd_ctrl(mtd, (page_addr >> 16) & 0x0f,
-		       NAND_CTRL_ALE); /* A[28:25] */
-#endif
-	/* Latch in address */
-	this->cmd_ctrl(mtd, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
-
-	/*
-	 * Wait a while for the data to be ready
-	 */
-	while (!this->dev_ready(mtd))
-		;
-
-	return 0;
-}
-#else
-/*
- * NAND command for large page NAND devices (2k)
- */
-static int nand_command(struct mtd_info *mtd, int block, int page, int offs, u8 cmd)
-{
-	struct nand_chip *this = mtd->priv;
-	int page_addr = page + block * CONFIG_SYS_NAND_PAGE_COUNT;
-	void (*hwctrl)(struct mtd_info *mtd, int cmd,
-			unsigned int ctrl) = this->cmd_ctrl;
-
-	while (!this->dev_ready(mtd))
-		;
-
-	/* Emulate NAND_CMD_READOOB */
-	if (cmd == NAND_CMD_READOOB) {
-		offs += CONFIG_SYS_NAND_PAGE_SIZE;
-		cmd = NAND_CMD_READ0;
-	}
-
-	/* Shift the offset from byte addressing to word addressing. */
-	if (this->options & NAND_BUSWIDTH_16)
-		offs >>= 1;
-
-	/* Begin command latch cycle */
-	hwctrl(mtd, cmd, NAND_CTRL_CLE | NAND_CTRL_CHANGE);
-	/* Set ALE and clear CLE to start address cycle */
-	/* Column address */
-	hwctrl(mtd, offs & 0xff,
-		       NAND_CTRL_ALE | NAND_CTRL_CHANGE); /* A[7:0] */
-	hwctrl(mtd, (offs >> 8) & 0xff, NAND_CTRL_ALE); /* A[11:9] */
-	/* Row address */
-	hwctrl(mtd, (page_addr & 0xff), NAND_CTRL_ALE); /* A[19:12] */
-	hwctrl(mtd, ((page_addr >> 8) & 0xff),
-		       NAND_CTRL_ALE); /* A[27:20] */
-#ifdef CONFIG_SYS_NAND_5_ADDR_CYCLE
-	/* One more address cycle for devices > 128MiB */
-	hwctrl(mtd, (page_addr >> 16) & 0x0f,
-		       NAND_CTRL_ALE); /* A[31:28] */
-#endif
-	/* Latch in address */
-	hwctrl(mtd, NAND_CMD_READSTART,
-		       NAND_CTRL_CLE | NAND_CTRL_CHANGE);
-	hwctrl(mtd, NAND_CMD_NONE, NAND_NCE | NAND_CTRL_CHANGE);
-
-	/*
-	 * Wait a while for the data to be ready
-	 */
-	while (!this->dev_ready(mtd))
-		;
-
-	return 0;
-}
-#endif
-
-static int nand_is_bad_block(struct mtd_info *mtd, int block)
-{
-	struct nand_chip *this = mtd->priv;
-
-	nand_command(mtd, block, 0, CONFIG_SYS_NAND_BAD_BLOCK_POS, NAND_CMD_READOOB);
-
-	/*
-	 * Read one byte (or two if it's a 16 bit chip).
-	 */
-	if (this->options & NAND_BUSWIDTH_16) {
-		if (readw(this->IO_ADDR_R) != 0xffff)
-			return 1;
-	} else {
-		if (readb(this->IO_ADDR_R) != 0xff)
-			return 1;
-	}
-
-	return 0;
-}
-
-#if defined(CONFIG_SYS_NAND_4BIT_HW_ECC_OOBFIRST)
-static int nand_read_page(struct mtd_info *mtd, int block, int page, uchar *dst)
-{
-	struct nand_chip *this = mtd->priv;
-	u_char ecc_calc[ECCTOTAL];
-	u_char ecc_code[ECCTOTAL];
-	u_char oob_data[CONFIG_SYS_NAND_OOBSIZE];
-	int i;
-	int eccsize = CONFIG_SYS_NAND_ECCSIZE;
-	int eccbytes = CONFIG_SYS_NAND_ECCBYTES;
-	int eccsteps = ECCSTEPS;
-	uint8_t *p = dst;
-
-	nand_command(mtd, block, page, 0, NAND_CMD_READOOB);
-	this->read_buf(mtd, oob_data, CONFIG_SYS_NAND_OOBSIZE);
-	nand_command(mtd, block, page, 0, NAND_CMD_READ0);
-
-	/* Pick the ECC bytes out of the oob data */
-	for (i = 0; i < ECCTOTAL; i++)
-		ecc_code[i] = oob_data[nand_ecc_pos[i]];
-
-
-	for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
-		this->ecc.hwctl(mtd, NAND_ECC_READ);
-		this->read_buf(mtd, p, eccsize);
-		this->ecc.calculate(mtd, p, &ecc_calc[i]);
-		this->ecc.correct(mtd, p, &ecc_code[i], &ecc_calc[i]);
-	}
-
-	return 0;
-}
-#else
-static int nand_read_page(struct mtd_info *mtd, int block, int page, uchar *dst)
-{
-	struct nand_chip *this = mtd->priv;
-	u_char ecc_calc[ECCTOTAL];
-	u_char ecc_code[ECCTOTAL];
-	u_char oob_data[CONFIG_SYS_NAND_OOBSIZE];
-	int i;
-	int eccsize = CONFIG_SYS_NAND_ECCSIZE;
-	int eccbytes = CONFIG_SYS_NAND_ECCBYTES;
-	int eccsteps = ECCSTEPS;
-	uint8_t *p = dst;
-
-	nand_command(mtd, block, page, 0, NAND_CMD_READ0);
-
-	for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
-		this->ecc.hwctl(mtd, NAND_ECC_READ);
-		this->read_buf(mtd, p, eccsize);
-		this->ecc.calculate(mtd, p, &ecc_calc[i]);
-	}
-	this->read_buf(mtd, oob_data, CONFIG_SYS_NAND_OOBSIZE);
-
-	/* Pick the ECC bytes out of the oob data */
-	for (i = 0; i < ECCTOTAL; i++)
-		ecc_code[i] = oob_data[nand_ecc_pos[i]];
-
-	eccsteps = ECCSTEPS;
-	p = dst;
-
-	for (i = 0 ; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
-		/* No chance to do something with the possible error message
-		 * from correct_data(). We just hope that all possible errors
-		 * are corrected by this routine.
-		 */
-		this->ecc.correct(mtd, p, &ecc_code[i], &ecc_calc[i]);
-	}
-
-	return 0;
-}
-#endif /* #if defined(CONFIG_SYS_NAND_4BIT_HW_ECC_OOBFIRST) */
-
-static int nand_load(struct mtd_info *mtd, unsigned int offs,
-		     unsigned int uboot_size, uchar *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 + uboot_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(mtd, block)) {
-			/*
-			 * Skip bad blocks
-			 */
-			while (page < CONFIG_SYS_NAND_PAGE_COUNT) {
-				nand_read_page(mtd, block, page, dst);
-				dst += CONFIG_SYS_NAND_PAGE_SIZE;
-				page++;
-			}
-
-			page = 0;
-		} else {
-			lastblock++;
-		}
-
-		block++;
-	}
-
-	return 0;
-}
-
-/*
- * The main entry for NAND booting. It's necessary that SDRAM is already
- * configured and available since this code loads the main U-Boot image
- * from NAND into SDRAM and starts it from there.
- */
-void nand_boot(void)
-{
-	struct nand_chip nand_chip;
-	nand_info_t nand_info;
-	__attribute__((noreturn)) void (*uboot)(void);
-
-	/*
-	 * Init board specific nand support
-	 */
-	nand_chip.select_chip = NULL;
-	nand_info.priv = &nand_chip;
-	nand_chip.IO_ADDR_R = nand_chip.IO_ADDR_W = (void  __iomem *)CONFIG_SYS_NAND_BASE;
-	nand_chip.dev_ready = NULL;	/* preset to NULL */
-	nand_chip.options = 0;
-	board_nand_init(&nand_chip);
-
-	if (nand_chip.select_chip)
-		nand_chip.select_chip(&nand_info, 0);
-
-	/*
-	 * Load U-Boot image from NAND into RAM
-	 */
-	nand_load(&nand_info, CONFIG_SYS_NAND_U_BOOT_OFFS, CONFIG_SYS_NAND_U_BOOT_SIZE,
-		  (uchar *)CONFIG_SYS_NAND_U_BOOT_DST);
-
-#ifdef CONFIG_NAND_ENV_DST
-	nand_load(&nand_info, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE,
-		  (uchar *)CONFIG_NAND_ENV_DST);
-
-#ifdef CONFIG_ENV_OFFSET_REDUND
-	nand_load(&nand_info, CONFIG_ENV_OFFSET_REDUND, CONFIG_ENV_SIZE,
-		  (uchar *)CONFIG_NAND_ENV_DST + CONFIG_ENV_SIZE);
-#endif
-#endif
-
-	if (nand_chip.select_chip)
-		nand_chip.select_chip(&nand_info, -1);
-
-	/*
-	 * Jump to U-Boot image
-	 */
-	uboot = (void *)CONFIG_SYS_NAND_U_BOOT_START;
-	(*uboot)();
-}