diff options
Diffstat (limited to 'drivers/mtd/nand/raw/sunxi_nand.c')
| -rw-r--r-- | drivers/mtd/nand/raw/sunxi_nand.c | 55 |
1 files changed, 24 insertions, 31 deletions
diff --git a/drivers/mtd/nand/raw/sunxi_nand.c b/drivers/mtd/nand/raw/sunxi_nand.c index d831a141a196..1f0b7ee38df5 100644 --- a/drivers/mtd/nand/raw/sunxi_nand.c +++ b/drivers/mtd/nand/raw/sunxi_nand.c @@ -29,14 +29,12 @@ #include <linux/platform_device.h> #include <linux/of.h> #include <linux/of_device.h> -#include <linux/of_gpio.h> #include <linux/mtd/mtd.h> #include <linux/mtd/rawnand.h> #include <linux/mtd/partitions.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/dmaengine.h> -#include <linux/gpio.h> #include <linux/interrupt.h> #include <linux/iopoll.h> #include <linux/reset.h> @@ -127,7 +125,7 @@ #define NFC_CMD_TYPE_MSK GENMASK(31, 30) #define NFC_NORMAL_OP (0 << 30) #define NFC_ECC_OP (1 << 30) -#define NFC_PAGE_OP (2 << 30) +#define NFC_PAGE_OP (2U << 30) /* define bit use in NFC_RCMD_SET */ #define NFC_READ_CMD_MSK GENMASK(7, 0) @@ -234,7 +232,7 @@ static inline struct sunxi_nand_chip *to_sunxi_nand(struct nand_chip *nand) * controller events */ struct sunxi_nfc { - struct nand_hw_control controller; + struct nand_controller controller; struct device *dev; void __iomem *regs; struct clk *ahb_clk; @@ -247,7 +245,7 @@ struct sunxi_nfc { struct dma_chan *dmac; }; -static inline struct sunxi_nfc *to_sunxi_nfc(struct nand_hw_control *ctrl) +static inline struct sunxi_nfc *to_sunxi_nfc(struct nand_controller *ctrl) { return container_of(ctrl, struct sunxi_nfc, controller); } @@ -544,7 +542,7 @@ static void sunxi_nfc_write_buf(struct mtd_info *mtd, const uint8_t *buf, static uint8_t sunxi_nfc_read_byte(struct mtd_info *mtd) { - uint8_t ret; + uint8_t ret = 0; sunxi_nfc_read_buf(mtd, &ret, 1); @@ -1816,12 +1814,21 @@ static void sunxi_nand_ecc_cleanup(struct nand_ecc_ctrl *ecc) } } -static int sunxi_nand_ecc_init(struct mtd_info *mtd, struct nand_ecc_ctrl *ecc, - struct device_node *np) +static int sunxi_nand_attach_chip(struct nand_chip *nand) { - struct nand_chip *nand = mtd_to_nand(mtd); + struct mtd_info *mtd = nand_to_mtd(nand); + struct nand_ecc_ctrl *ecc = &nand->ecc; + struct device_node *np = nand_get_flash_node(nand); int ret; + if (nand->bbt_options & NAND_BBT_USE_FLASH) + nand->bbt_options |= NAND_BBT_NO_OOB; + + if (nand->options & NAND_NEED_SCRAMBLING) + nand->options |= NAND_NO_SUBPAGE_WRITE; + + nand->options |= NAND_SUBPAGE_READ; + if (!ecc->size) { ecc->size = nand->ecc_step_ds; ecc->strength = nand->ecc_strength_ds; @@ -1846,6 +1853,10 @@ static int sunxi_nand_ecc_init(struct mtd_info *mtd, struct nand_ecc_ctrl *ecc, return 0; } +static const struct nand_controller_ops sunxi_nand_controller_ops = { + .attach_chip = sunxi_nand_attach_chip, +}; + static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc, struct device_node *np) { @@ -1911,6 +1922,8 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc, /* Default tR value specified in the ONFI spec (chapter 4.15.1) */ nand->chip_delay = 200; nand->controller = &nfc->controller; + nand->controller->ops = &sunxi_nand_controller_ops; + /* * Set the ECC mode to the default value in case nothing is specified * in the DT. @@ -1927,30 +1940,10 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc, mtd = nand_to_mtd(nand); mtd->dev.parent = dev; - ret = nand_scan_ident(mtd, nsels, NULL); + ret = nand_scan(mtd, nsels); if (ret) return ret; - if (nand->bbt_options & NAND_BBT_USE_FLASH) - nand->bbt_options |= NAND_BBT_NO_OOB; - - if (nand->options & NAND_NEED_SCRAMBLING) - nand->options |= NAND_NO_SUBPAGE_WRITE; - - nand->options |= NAND_SUBPAGE_READ; - - ret = sunxi_nand_ecc_init(mtd, &nand->ecc, np); - if (ret) { - dev_err(dev, "ECC init failed: %d\n", ret); - return ret; - } - - ret = nand_scan_tail(mtd); - if (ret) { - dev_err(dev, "nand_scan_tail failed: %d\n", ret); - return ret; - } - ret = mtd_device_register(mtd, NULL, 0); if (ret) { dev_err(dev, "failed to register mtd device: %d\n", ret); @@ -2012,7 +2005,7 @@ static int sunxi_nfc_probe(struct platform_device *pdev) return -ENOMEM; nfc->dev = dev; - nand_hw_control_init(&nfc->controller); + nand_controller_init(&nfc->controller); INIT_LIST_HEAD(&nfc->chips); r = platform_get_resource(pdev, IORESOURCE_MEM, 0); |