summaryrefslogtreecommitdiff
path: root/drivers/mtd/nand/mxc_nand.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mtd/nand/mxc_nand.c')
-rw-r--r--drivers/mtd/nand/mxc_nand.c88
1 files changed, 42 insertions, 46 deletions
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 136e73a3e07e..854c832597aa 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -173,7 +173,6 @@ struct mxc_nand_devtype_data {
};
struct mxc_nand_host {
- struct mtd_info mtd;
struct nand_chip nand;
struct device *dev;
@@ -532,8 +531,8 @@ static void send_addr_v1_v2(struct mxc_nand_host *host, uint16_t addr, int islas
static void send_page_v3(struct mtd_info *mtd, unsigned int ops)
{
- struct nand_chip *nand_chip = mtd->priv;
- struct mxc_nand_host *host = nand_chip->priv;
+ struct nand_chip *nand_chip = mtd_to_nand(mtd);
+ struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
uint32_t tmp;
tmp = readl(NFC_V3_CONFIG1);
@@ -548,8 +547,8 @@ static void send_page_v3(struct mtd_info *mtd, unsigned int ops)
static void send_page_v2(struct mtd_info *mtd, unsigned int ops)
{
- struct nand_chip *nand_chip = mtd->priv;
- struct mxc_nand_host *host = nand_chip->priv;
+ struct nand_chip *nand_chip = mtd_to_nand(mtd);
+ struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
/* NANDFC buffer 0 is used for page read/write */
writew(host->active_cs << 4, NFC_V1_V2_BUF_ADDR);
@@ -562,8 +561,8 @@ static void send_page_v2(struct mtd_info *mtd, unsigned int ops)
static void send_page_v1(struct mtd_info *mtd, unsigned int ops)
{
- struct nand_chip *nand_chip = mtd->priv;
- struct mxc_nand_host *host = nand_chip->priv;
+ struct nand_chip *nand_chip = mtd_to_nand(mtd);
+ struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
int bufs, i;
if (mtd->writesize > 512)
@@ -663,8 +662,8 @@ static void mxc_nand_enable_hwecc(struct mtd_info *mtd, int mode)
static int mxc_nand_correct_data_v1(struct mtd_info *mtd, u_char *dat,
u_char *read_ecc, u_char *calc_ecc)
{
- struct nand_chip *nand_chip = mtd->priv;
- struct mxc_nand_host *host = nand_chip->priv;
+ struct nand_chip *nand_chip = mtd_to_nand(mtd);
+ struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
/*
* 1-Bit errors are automatically corrected in HW. No need for
@@ -675,7 +674,7 @@ static int mxc_nand_correct_data_v1(struct mtd_info *mtd, u_char *dat,
if (((ecc_status & 0x3) == 2) || ((ecc_status >> 2) == 2)) {
pr_debug("MXC_NAND: HWECC uncorrectable 2-bit ECC error\n");
- return -1;
+ return -EBADMSG;
}
return 0;
@@ -684,8 +683,8 @@ static int mxc_nand_correct_data_v1(struct mtd_info *mtd, u_char *dat,
static int mxc_nand_correct_data_v2_v3(struct mtd_info *mtd, u_char *dat,
u_char *read_ecc, u_char *calc_ecc)
{
- struct nand_chip *nand_chip = mtd->priv;
- struct mxc_nand_host *host = nand_chip->priv;
+ struct nand_chip *nand_chip = mtd_to_nand(mtd);
+ struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
u32 ecc_stat, err;
int no_subpages = 1;
int ret = 0;
@@ -702,7 +701,7 @@ static int mxc_nand_correct_data_v2_v3(struct mtd_info *mtd, u_char *dat,
err = ecc_stat & ecc_bit_mask;
if (err > err_limit) {
printk(KERN_WARNING "UnCorrectable RS-ECC Error\n");
- return -1;
+ return -EBADMSG;
} else {
ret += err;
}
@@ -722,8 +721,8 @@ static int mxc_nand_calculate_ecc(struct mtd_info *mtd, const u_char *dat,
static u_char mxc_nand_read_byte(struct mtd_info *mtd)
{
- struct nand_chip *nand_chip = mtd->priv;
- struct mxc_nand_host *host = nand_chip->priv;
+ struct nand_chip *nand_chip = mtd_to_nand(mtd);
+ struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
uint8_t ret;
/* Check for status request */
@@ -746,8 +745,8 @@ static u_char mxc_nand_read_byte(struct mtd_info *mtd)
static uint16_t mxc_nand_read_word(struct mtd_info *mtd)
{
- struct nand_chip *nand_chip = mtd->priv;
- struct mxc_nand_host *host = nand_chip->priv;
+ struct nand_chip *nand_chip = mtd_to_nand(mtd);
+ struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
uint16_t ret;
ret = *(uint16_t *)(host->data_buf + host->buf_start);
@@ -762,8 +761,8 @@ static uint16_t mxc_nand_read_word(struct mtd_info *mtd)
static void mxc_nand_write_buf(struct mtd_info *mtd,
const u_char *buf, int len)
{
- struct nand_chip *nand_chip = mtd->priv;
- struct mxc_nand_host *host = nand_chip->priv;
+ struct nand_chip *nand_chip = mtd_to_nand(mtd);
+ struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
u16 col = host->buf_start;
int n = mtd->oobsize + mtd->writesize - col;
@@ -780,8 +779,8 @@ static void mxc_nand_write_buf(struct mtd_info *mtd,
*/
static void mxc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
{
- struct nand_chip *nand_chip = mtd->priv;
- struct mxc_nand_host *host = nand_chip->priv;
+ struct nand_chip *nand_chip = mtd_to_nand(mtd);
+ struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
u16 col = host->buf_start;
int n = mtd->oobsize + mtd->writesize - col;
@@ -796,8 +795,8 @@ static void mxc_nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
* deselect of the NAND chip */
static void mxc_nand_select_chip_v1_v3(struct mtd_info *mtd, int chip)
{
- struct nand_chip *nand_chip = mtd->priv;
- struct mxc_nand_host *host = nand_chip->priv;
+ struct nand_chip *nand_chip = mtd_to_nand(mtd);
+ struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
if (chip == -1) {
/* Disable the NFC clock */
@@ -817,8 +816,8 @@ static void mxc_nand_select_chip_v1_v3(struct mtd_info *mtd, int chip)
static void mxc_nand_select_chip_v2(struct mtd_info *mtd, int chip)
{
- struct nand_chip *nand_chip = mtd->priv;
- struct mxc_nand_host *host = nand_chip->priv;
+ struct nand_chip *nand_chip = mtd_to_nand(mtd);
+ struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
if (chip == -1) {
/* Disable the NFC clock */
@@ -850,8 +849,8 @@ static void mxc_nand_select_chip_v2(struct mtd_info *mtd, int chip)
*/
static void copy_spare(struct mtd_info *mtd, bool bfrom)
{
- struct nand_chip *this = mtd->priv;
- struct mxc_nand_host *host = this->priv;
+ struct nand_chip *this = mtd_to_nand(mtd);
+ struct mxc_nand_host *host = nand_get_controller_data(this);
u16 i, oob_chunk_size;
u16 num_chunks = mtd->writesize / 512;
@@ -893,8 +892,8 @@ static void copy_spare(struct mtd_info *mtd, bool bfrom)
*/
static void mxc_do_addr_cycle(struct mtd_info *mtd, int column, int page_addr)
{
- struct nand_chip *nand_chip = mtd->priv;
- struct mxc_nand_host *host = nand_chip->priv;
+ struct nand_chip *nand_chip = mtd_to_nand(mtd);
+ struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
/* Write out column address, if necessary */
if (column != -1) {
@@ -979,8 +978,8 @@ static void ecc_8bit_layout_4k(struct nand_ecclayout *layout)
static void preset_v1(struct mtd_info *mtd)
{
- struct nand_chip *nand_chip = mtd->priv;
- struct mxc_nand_host *host = nand_chip->priv;
+ struct nand_chip *nand_chip = mtd_to_nand(mtd);
+ struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
uint16_t config1 = 0;
if (nand_chip->ecc.mode == NAND_ECC_HW && mtd->writesize)
@@ -1007,8 +1006,8 @@ static void preset_v1(struct mtd_info *mtd)
static void preset_v2(struct mtd_info *mtd)
{
- struct nand_chip *nand_chip = mtd->priv;
- struct mxc_nand_host *host = nand_chip->priv;
+ struct nand_chip *nand_chip = mtd_to_nand(mtd);
+ struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
uint16_t config1 = 0;
config1 |= NFC_V2_CONFIG1_FP_INT;
@@ -1053,8 +1052,8 @@ static void preset_v2(struct mtd_info *mtd)
static void preset_v3(struct mtd_info *mtd)
{
- struct nand_chip *chip = mtd->priv;
- struct mxc_nand_host *host = chip->priv;
+ struct nand_chip *chip = mtd_to_nand(mtd);
+ struct mxc_nand_host *host = nand_get_controller_data(chip);
uint32_t config2, config3;
int i, addr_phases;
@@ -1067,8 +1066,7 @@ static void preset_v3(struct mtd_info *mtd)
/* Blocks to be unlocked */
for (i = 0; i < NAND_MAX_CHIPS; i++)
- writel(0x0 | (0xffff << 16),
- NFC_V3_WRPROT_UNLOCK_BLK_ADD0 + (i << 2));
+ writel(0xffff << 16, NFC_V3_WRPROT_UNLOCK_BLK_ADD0 + (i << 2));
writel(0, NFC_V3_IPC);
@@ -1125,8 +1123,8 @@ static void preset_v3(struct mtd_info *mtd)
static void mxc_nand_command(struct mtd_info *mtd, unsigned command,
int column, int page_addr)
{
- struct nand_chip *nand_chip = mtd->priv;
- struct mxc_nand_host *host = nand_chip->priv;
+ struct nand_chip *nand_chip = mtd_to_nand(mtd);
+ struct mxc_nand_host *host = nand_get_controller_data(nand_chip);
pr_debug("mxc_nand_command (cmd = 0x%x, col = 0x%x, page = 0x%x)\n",
command, column, page_addr);
@@ -1515,15 +1513,15 @@ static int mxcnd_probe(struct platform_device *pdev)
host->dev = &pdev->dev;
/* structures must be linked */
this = &host->nand;
- mtd = &host->mtd;
- mtd->priv = this;
+ mtd = nand_to_mtd(this);
mtd->dev.parent = &pdev->dev;
mtd->name = DRIVER_NAME;
/* 50 us command delay time */
this->chip_delay = 5;
- this->priv = host;
+ nand_set_controller_data(this, host);
+ nand_set_flash_node(this, pdev->dev.of_node),
this->dev_ready = mxc_nand_dev_ready;
this->cmdfunc = mxc_nand_command;
this->read_byte = mxc_nand_read_byte;
@@ -1683,9 +1681,7 @@ static int mxcnd_probe(struct platform_device *pdev)
/* Register the partitions */
mtd_device_parse_register(mtd, part_probes,
- &(struct mtd_part_parser_data){
- .of_node = pdev->dev.of_node,
- },
+ NULL,
host->pdata.parts,
host->pdata.nr_parts);
@@ -1704,7 +1700,7 @@ static int mxcnd_remove(struct platform_device *pdev)
{
struct mxc_nand_host *host = platform_get_drvdata(pdev);
- nand_release(&host->mtd);
+ nand_release(nand_to_mtd(&host->nand));
if (host->clk_act)
clk_disable_unprepare(host->clk);
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-29 12:22:12 +0300