diff options
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/fsl_elbc_nand.c | 219 |
1 files changed, 12 insertions, 207 deletions
diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index b025dfe0b27..378b7aa6381 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -36,207 +36,12 @@ #include <linux/mtd/partitions.h> #include <asm/io.h> - +#include <asm/fsl_lbc.h> #define MAX_BANKS 8 #define ERR_BYTE 0xFF /* Value returned for read bytes when read failed */ #define FCM_TIMEOUT_MSECS 500 /* Maximum number of mSecs to wait for FCM */ -struct elbc_bank { - __be32 br; /**< Base Register */ -#define BR_BA 0xFFFF8000 -#define BR_BA_SHIFT 15 -#define BR_PS 0x00001800 -#define BR_PS_SHIFT 11 -#define BR_PS_8 0x00000800 /* Port Size 8 bit */ -#define BR_PS_16 0x00001000 /* Port Size 16 bit */ -#define BR_PS_32 0x00001800 /* Port Size 32 bit */ -#define BR_DECC 0x00000600 -#define BR_DECC_SHIFT 9 -#define BR_DECC_OFF 0x00000000 /* HW ECC checking and generation off */ -#define BR_DECC_CHK 0x00000200 /* HW ECC checking on, generation off */ -#define BR_DECC_CHK_GEN 0x00000400 /* HW ECC checking and generation on */ -#define BR_WP 0x00000100 -#define BR_WP_SHIFT 8 -#define BR_MSEL 0x000000E0 -#define BR_MSEL_SHIFT 5 -#define BR_MS_GPCM 0x00000000 /* GPCM */ -#define BR_MS_FCM 0x00000020 /* FCM */ -#define BR_MS_SDRAM 0x00000060 /* SDRAM */ -#define BR_MS_UPMA 0x00000080 /* UPMA */ -#define BR_MS_UPMB 0x000000A0 /* UPMB */ -#define BR_MS_UPMC 0x000000C0 /* UPMC */ -#define BR_V 0x00000001 -#define BR_V_SHIFT 0 -#define BR_RES ~(BR_BA|BR_PS|BR_DECC|BR_WP|BR_MSEL|BR_V) - - __be32 or; /**< Base Register */ -#define OR0 0x5004 -#define OR1 0x500C -#define OR2 0x5014 -#define OR3 0x501C -#define OR4 0x5024 -#define OR5 0x502C -#define OR6 0x5034 -#define OR7 0x503C - -#define OR_FCM_AM 0xFFFF8000 -#define OR_FCM_AM_SHIFT 15 -#define OR_FCM_BCTLD 0x00001000 -#define OR_FCM_BCTLD_SHIFT 12 -#define OR_FCM_PGS 0x00000400 -#define OR_FCM_PGS_SHIFT 10 -#define OR_FCM_CSCT 0x00000200 -#define OR_FCM_CSCT_SHIFT 9 -#define OR_FCM_CST 0x00000100 -#define OR_FCM_CST_SHIFT 8 -#define OR_FCM_CHT 0x00000080 -#define OR_FCM_CHT_SHIFT 7 -#define OR_FCM_SCY 0x00000070 -#define OR_FCM_SCY_SHIFT 4 -#define OR_FCM_SCY_1 0x00000010 -#define OR_FCM_SCY_2 0x00000020 -#define OR_FCM_SCY_3 0x00000030 -#define OR_FCM_SCY_4 0x00000040 -#define OR_FCM_SCY_5 0x00000050 -#define OR_FCM_SCY_6 0x00000060 -#define OR_FCM_SCY_7 0x00000070 -#define OR_FCM_RST 0x00000008 -#define OR_FCM_RST_SHIFT 3 -#define OR_FCM_TRLX 0x00000004 -#define OR_FCM_TRLX_SHIFT 2 -#define OR_FCM_EHTR 0x00000002 -#define OR_FCM_EHTR_SHIFT 1 -}; - -struct elbc_regs { - struct elbc_bank bank[8]; - u8 res0[0x28]; - __be32 mar; /**< UPM Address Register */ - u8 res1[0x4]; - __be32 mamr; /**< UPMA Mode Register */ - __be32 mbmr; /**< UPMB Mode Register */ - __be32 mcmr; /**< UPMC Mode Register */ - u8 res2[0x8]; - __be32 mrtpr; /**< Memory Refresh Timer Prescaler Register */ - __be32 mdr; /**< UPM Data Register */ - u8 res3[0x4]; - __be32 lsor; /**< Special Operation Initiation Register */ - __be32 lsdmr; /**< SDRAM Mode Register */ - u8 res4[0x8]; - __be32 lurt; /**< UPM Refresh Timer */ - __be32 lsrt; /**< SDRAM Refresh Timer */ - u8 res5[0x8]; - __be32 ltesr; /**< Transfer Error Status Register */ -#define LTESR_BM 0x80000000 -#define LTESR_FCT 0x40000000 -#define LTESR_PAR 0x20000000 -#define LTESR_WP 0x04000000 -#define LTESR_ATMW 0x00800000 -#define LTESR_ATMR 0x00400000 -#define LTESR_CS 0x00080000 -#define LTESR_CC 0x00000001 -#define LTESR_NAND_MASK (LTESR_FCT | LTESR_PAR | LTESR_CC) - __be32 ltedr; /**< Transfer Error Disable Register */ - __be32 lteir; /**< Transfer Error Interrupt Register */ - __be32 lteatr; /**< Transfer Error Attributes Register */ - __be32 ltear; /**< Transfer Error Address Register */ - u8 res6[0xC]; - __be32 lbcr; /**< Configuration Register */ -#define LBCR_LDIS 0x80000000 -#define LBCR_LDIS_SHIFT 31 -#define LBCR_BCTLC 0x00C00000 -#define LBCR_BCTLC_SHIFT 22 -#define LBCR_AHD 0x00200000 -#define LBCR_LPBSE 0x00020000 -#define LBCR_LPBSE_SHIFT 17 -#define LBCR_EPAR 0x00010000 -#define LBCR_EPAR_SHIFT 16 -#define LBCR_BMT 0x0000FF00 -#define LBCR_BMT_SHIFT 8 -#define LBCR_INIT 0x00040000 - __be32 lcrr; /**< Clock Ratio Register */ -#define LCRR_DBYP 0x80000000 -#define LCRR_DBYP_SHIFT 31 -#define LCRR_BUFCMDC 0x30000000 -#define LCRR_BUFCMDC_SHIFT 28 -#define LCRR_ECL 0x03000000 -#define LCRR_ECL_SHIFT 24 -#define LCRR_EADC 0x00030000 -#define LCRR_EADC_SHIFT 16 -#define LCRR_CLKDIV 0x0000000F -#define LCRR_CLKDIV_SHIFT 0 - u8 res7[0x8]; - __be32 fmr; /**< Flash Mode Register */ -#define FMR_CWTO 0x0000F000 -#define FMR_CWTO_SHIFT 12 -#define FMR_BOOT 0x00000800 -#define FMR_ECCM 0x00000100 -#define FMR_AL 0x00000030 -#define FMR_AL_SHIFT 4 -#define FMR_OP 0x00000003 -#define FMR_OP_SHIFT 0 - __be32 fir; /**< Flash Instruction Register */ -#define FIR_OP0 0xF0000000 -#define FIR_OP0_SHIFT 28 -#define FIR_OP1 0x0F000000 -#define FIR_OP1_SHIFT 24 -#define FIR_OP2 0x00F00000 -#define FIR_OP2_SHIFT 20 -#define FIR_OP3 0x000F0000 -#define FIR_OP3_SHIFT 16 -#define FIR_OP4 0x0000F000 -#define FIR_OP4_SHIFT 12 -#define FIR_OP5 0x00000F00 -#define FIR_OP5_SHIFT 8 -#define FIR_OP6 0x000000F0 -#define FIR_OP6_SHIFT 4 -#define FIR_OP7 0x0000000F -#define FIR_OP7_SHIFT 0 -#define FIR_OP_NOP 0x0 /* No operation and end of sequence */ -#define FIR_OP_CA 0x1 /* Issue current column address */ -#define FIR_OP_PA 0x2 /* Issue current block+page address */ -#define FIR_OP_UA 0x3 /* Issue user defined address */ -#define FIR_OP_CM0 0x4 /* Issue command from FCR[CMD0] */ -#define FIR_OP_CM1 0x5 /* Issue command from FCR[CMD1] */ -#define FIR_OP_CM2 0x6 /* Issue command from FCR[CMD2] */ -#define FIR_OP_CM3 0x7 /* Issue command from FCR[CMD3] */ -#define FIR_OP_WB 0x8 /* Write FBCR bytes from FCM buffer */ -#define FIR_OP_WS 0x9 /* Write 1 or 2 bytes from MDR[AS] */ -#define FIR_OP_RB 0xA /* Read FBCR bytes to FCM buffer */ -#define FIR_OP_RS 0xB /* Read 1 or 2 bytes to MDR[AS] */ -#define FIR_OP_CW0 0xC /* Wait then issue FCR[CMD0] */ -#define FIR_OP_CW1 0xD /* Wait then issue FCR[CMD1] */ -#define FIR_OP_RBW 0xE /* Wait then read FBCR bytes */ -#define FIR_OP_RSW 0xE /* Wait then read 1 or 2 bytes */ - __be32 fcr; /**< Flash Command Register */ -#define FCR_CMD0 0xFF000000 -#define FCR_CMD0_SHIFT 24 -#define FCR_CMD1 0x00FF0000 -#define FCR_CMD1_SHIFT 16 -#define FCR_CMD2 0x0000FF00 -#define FCR_CMD2_SHIFT 8 -#define FCR_CMD3 0x000000FF -#define FCR_CMD3_SHIFT 0 - __be32 fbar; /**< Flash Block Address Register */ -#define FBAR_BLK 0x00FFFFFF - __be32 fpar; /**< Flash Page Address Register */ -#define FPAR_SP_PI 0x00007C00 -#define FPAR_SP_PI_SHIFT 10 -#define FPAR_SP_MS 0x00000200 -#define FPAR_SP_CI 0x000001FF -#define FPAR_SP_CI_SHIFT 0 -#define FPAR_LP_PI 0x0003F000 -#define FPAR_LP_PI_SHIFT 12 -#define FPAR_LP_MS 0x00000800 -#define FPAR_LP_CI 0x000007FF -#define FPAR_LP_CI_SHIFT 0 - __be32 fbcr; /**< Flash Byte Count Register */ -#define FBCR_BC 0x00000FFF - u8 res11[0x8]; - u8 res8[0xF00]; -}; - struct fsl_elbc_ctrl; /* mtd information per set */ @@ -261,7 +66,7 @@ struct fsl_elbc_ctrl { /* device info */ struct device *dev; - struct elbc_regs __iomem *regs; + struct fsl_lbc_regs __iomem *regs; int irq; wait_queue_head_t irq_wait; unsigned int irq_status; /* status read from LTESR by irq handler */ @@ -322,7 +127,7 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob) struct nand_chip *chip = mtd->priv; struct fsl_elbc_mtd *priv = chip->priv; struct fsl_elbc_ctrl *ctrl = priv->ctrl; - struct elbc_regs __iomem *lbc = ctrl->regs; + struct fsl_lbc_regs __iomem *lbc = ctrl->regs; int buf_num; ctrl->page = page_addr; @@ -363,7 +168,7 @@ static int fsl_elbc_run_command(struct mtd_info *mtd) struct nand_chip *chip = mtd->priv; struct fsl_elbc_mtd *priv = chip->priv; struct fsl_elbc_ctrl *ctrl = priv->ctrl; - struct elbc_regs __iomem *lbc = ctrl->regs; + struct fsl_lbc_regs __iomem *lbc = ctrl->regs; /* Setup the FMR[OP] to execute without write protection */ out_be32(&lbc->fmr, priv->fmr | 3); @@ -406,7 +211,7 @@ static void fsl_elbc_do_read(struct nand_chip *chip, int oob) { struct fsl_elbc_mtd *priv = chip->priv; struct fsl_elbc_ctrl *ctrl = priv->ctrl; - struct elbc_regs __iomem *lbc = ctrl->regs; + struct fsl_lbc_regs __iomem *lbc = ctrl->regs; if (priv->page_size) { out_be32(&lbc->fir, @@ -439,7 +244,7 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command, struct nand_chip *chip = mtd->priv; struct fsl_elbc_mtd *priv = chip->priv; struct fsl_elbc_ctrl *ctrl = priv->ctrl; - struct elbc_regs __iomem *lbc = ctrl->regs; + struct fsl_lbc_regs __iomem *lbc = ctrl->regs; ctrl->use_mdr = 0; @@ -775,7 +580,7 @@ static int fsl_elbc_wait(struct mtd_info *mtd, struct nand_chip *chip) { struct fsl_elbc_mtd *priv = chip->priv; struct fsl_elbc_ctrl *ctrl = priv->ctrl; - struct elbc_regs __iomem *lbc = ctrl->regs; + struct fsl_lbc_regs __iomem *lbc = ctrl->regs; if (ctrl->status != LTESR_CC) return NAND_STATUS_FAIL; @@ -807,7 +612,7 @@ static int fsl_elbc_chip_init_tail(struct mtd_info *mtd) struct nand_chip *chip = mtd->priv; struct fsl_elbc_mtd *priv = chip->priv; struct fsl_elbc_ctrl *ctrl = priv->ctrl; - struct elbc_regs __iomem *lbc = ctrl->regs; + struct fsl_lbc_regs __iomem *lbc = ctrl->regs; unsigned int al; /* calculate FMR Address Length field */ @@ -922,7 +727,7 @@ static void fsl_elbc_write_page(struct mtd_info *mtd, static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv) { struct fsl_elbc_ctrl *ctrl = priv->ctrl; - struct elbc_regs __iomem *lbc = ctrl->regs; + struct fsl_lbc_regs __iomem *lbc = ctrl->regs; struct nand_chip *chip = &priv->chip; dev_dbg(priv->dev, "eLBC Set Information for bank %d\n", priv->bank); @@ -986,7 +791,7 @@ static int fsl_elbc_chip_remove(struct fsl_elbc_mtd *priv) static int fsl_elbc_chip_probe(struct fsl_elbc_ctrl *ctrl, struct device_node *node) { - struct elbc_regs __iomem *lbc = ctrl->regs; + struct fsl_lbc_regs __iomem *lbc = ctrl->regs; struct fsl_elbc_mtd *priv; struct resource res; #ifdef CONFIG_MTD_PARTITIONS @@ -1083,7 +888,7 @@ err: static int __devinit fsl_elbc_ctrl_init(struct fsl_elbc_ctrl *ctrl) { - struct elbc_regs __iomem *lbc = ctrl->regs; + struct fsl_lbc_regs __iomem *lbc = ctrl->regs; /* clear event registers */ setbits32(&lbc->ltesr, LTESR_NAND_MASK); @@ -1128,7 +933,7 @@ static int __devexit fsl_elbc_ctrl_remove(struct of_device *ofdev) static irqreturn_t fsl_elbc_ctrl_irq(int irqno, void *data) { struct fsl_elbc_ctrl *ctrl = data; - struct elbc_regs __iomem *lbc = ctrl->regs; + struct fsl_lbc_regs __iomem *lbc = ctrl->regs; __be32 status = in_be32(&lbc->ltesr) & LTESR_NAND_MASK; if (status) { |