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[POWERPC] fsl_elbc_nand: factor out localbus defines
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This is needed to support other localbus peripherals, such as
NAND on FSL UPM.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Anton Vorontsov authored and Kumar Gala committed Apr 17, 2008
1 parent 56626f3 commit d4a32fe
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Showing 2 changed files with 235 additions and 207 deletions.
219 changes: 12 additions & 207 deletions drivers/mtd/nand/fsl_elbc_nand.c
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Original file line number Diff line number Diff line change
Expand Up @@ -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 */
Expand All @@ -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 */
Expand Down Expand Up @@ -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;
Expand Down Expand Up @@ -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);
Expand Down Expand Up @@ -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,
Expand Down Expand Up @@ -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;

Expand Down Expand Up @@ -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;
Expand Down Expand Up @@ -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 */
Expand Down Expand Up @@ -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);
Expand Down Expand Up @@ -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
Expand Down Expand Up @@ -1083,7 +888,7 @@ static int fsl_elbc_chip_probe(struct fsl_elbc_ctrl *ctrl,

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);
Expand Down Expand Up @@ -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) {
Expand Down
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