#include <asm/errno.h>
#include <fsl_ifc.h>
-#define FSL_IFC_V1_1_0 0x01010000
-#define MAX_BANKS 4
+#ifndef CONFIG_SYS_FSL_IFC_BANK_COUNT
+#define CONFIG_SYS_FSL_IFC_BANK_COUNT 4
+#endif
+
+#define MAX_BANKS CONFIG_SYS_FSL_IFC_BANK_COUNT
#define ERR_BYTE 0xFF /* Value returned for read bytes
when read failed */
-#define IFC_TIMEOUT_MSECS 10 /* Maximum number of mSecs to wait for IFC
- NAND Machine */
struct fsl_ifc_ctrl;
struct fsl_ifc_mtd *chips[MAX_BANKS];
/* device info */
- struct fsl_ifc *regs;
- uint8_t __iomem *addr; /* Address of assigned IFC buffer */
+ struct fsl_ifc regs;
+ void __iomem *addr; /* Address of assigned IFC buffer */
unsigned int cs_nand; /* On which chipsel NAND is connected */
unsigned int page; /* Last page written to / read from */
unsigned int read_bytes; /* Number of bytes read during command */
struct nand_chip *chip = mtd->priv;
struct fsl_ifc_mtd *priv = chip->priv;
struct fsl_ifc_ctrl *ctrl = priv->ctrl;
- struct fsl_ifc *ifc = ctrl->regs;
+ struct fsl_ifc_runtime *ifc = ctrl->regs.rregs;
int buf_num;
ctrl->page = page_addr;
struct nand_chip *chip = mtd->priv;
struct fsl_ifc_mtd *priv = chip->priv;
struct fsl_ifc_ctrl *ctrl = priv->ctrl;
- struct fsl_ifc *ifc = ctrl->regs;
- long long end_tick;
- u32 eccstat[4];
+ struct fsl_ifc_runtime *ifc = ctrl->regs.rregs;
+ u32 timeo = (CONFIG_SYS_HZ * 10) / 1000;
+ u32 time_start;
+ u32 eccstat[8] = {0};
int i;
/* set the chip select for NAND Transaction */
IFC_NAND_SEQ_STRT_FIR_STRT);
/* wait for NAND Machine complete flag or timeout */
- end_tick = usec2ticks(IFC_TIMEOUT_MSECS * 1000) + get_ticks();
+ time_start = get_timer(0);
- while (end_tick > get_ticks()) {
+ while (get_timer(time_start) < timeo) {
ctrl->status = ifc_in32(&ifc->ifc_nand.nand_evter_stat);
if (ctrl->status & IFC_NAND_EVTER_STAT_OPC)
int sector = bufnum * chip->ecc.steps;
int sector_end = sector + chip->ecc.steps - 1;
- for (i = sector / 4; i <= sector_end / 4; i++)
+ for (i = sector / 4; i <= sector_end / 4; i++) {
+ if (i >= ARRAY_SIZE(eccstat)) {
+ printf("%s: eccstat too small for %d\n",
+ __func__, i);
+ return -EIO;
+ }
+
eccstat[i] = ifc_in32(&ifc->ifc_nand.nand_eccstat[i]);
+ }
for (i = sector; i <= sector_end; i++) {
errors = check_read_ecc(mtd, ctrl, eccstat, i);
{
struct fsl_ifc_mtd *priv = chip->priv;
struct fsl_ifc_ctrl *ctrl = priv->ctrl;
- struct fsl_ifc *ifc = ctrl->regs;
+ struct fsl_ifc_runtime *ifc = ctrl->regs.rregs;
/* Program FIR/IFC_NAND_FCR0 for Small/Large page */
if (mtd->writesize > 512) {
struct nand_chip *chip = mtd->priv;
struct fsl_ifc_mtd *priv = chip->priv;
struct fsl_ifc_ctrl *ctrl = priv->ctrl;
- struct fsl_ifc *ifc = ctrl->regs;
+ struct fsl_ifc_runtime *ifc = ctrl->regs.rregs;
/* clear the read buffer */
ctrl->read_bytes = 0;
fsl_ifc_run_command(mtd);
- /* Chip sometimes reporting write protect even when it's not */
- out_8(ctrl->addr, in_8(ctrl->addr) | NAND_STATUS_WP);
+ /*
+ * The chip always seems to report that it is
+ * write-protected, even when it is not.
+ */
+ if (chip->options & NAND_BUSWIDTH_16)
+ ifc_out16(ctrl->addr,
+ ifc_in16(ctrl->addr) | NAND_STATUS_WP);
+ else
+ out_8(ctrl->addr, in_8(ctrl->addr) | NAND_STATUS_WP);
return;
case NAND_CMD_RESET:
len = bufsize - ctrl->index;
}
- memcpy_toio(&ctrl->addr[ctrl->index], buf, len);
+ memcpy_toio(ctrl->addr + ctrl->index, buf, len);
ctrl->index += len;
}
struct nand_chip *chip = mtd->priv;
struct fsl_ifc_mtd *priv = chip->priv;
struct fsl_ifc_ctrl *ctrl = priv->ctrl;
+ unsigned int offset;
- /* If there are still bytes in the IFC buffer, then use the
- * next byte. */
- if (ctrl->index < ctrl->read_bytes)
- return in_8(&ctrl->addr[ctrl->index++]);
+ /*
+ * If there are still bytes in the IFC buffer, then use the
+ * next byte.
+ */
+ if (ctrl->index < ctrl->read_bytes) {
+ offset = ctrl->index++;
+ return in_8(ctrl->addr + offset);
+ }
printf("%s beyond end of buffer\n", __func__);
return ERR_BYTE;
* next byte.
*/
if (ctrl->index < ctrl->read_bytes) {
- data = ifc_in16((uint16_t *)&ctrl->
- addr[ctrl->index]);
+ data = ifc_in16(ctrl->addr + ctrl->index);
ctrl->index += 2;
return (uint8_t)data;
}
return;
avail = min((unsigned int)len, ctrl->read_bytes - ctrl->index);
- memcpy_fromio(buf, &ctrl->addr[ctrl->index], avail);
+ memcpy_fromio(buf, ctrl->addr + ctrl->index, avail);
ctrl->index += avail;
if (len > avail)
__func__, len, avail);
}
-/*
- * Verify buffer against the IFC Controller Data Buffer
- */
-static int fsl_ifc_verify_buf(struct mtd_info *mtd,
- const u_char *buf, int len)
-{
- struct nand_chip *chip = mtd->priv;
- struct fsl_ifc_mtd *priv = chip->priv;
- struct fsl_ifc_ctrl *ctrl = priv->ctrl;
- int i;
-
- if (len < 0) {
- printf("%s of %d bytes", __func__, len);
- return -EINVAL;
- }
-
- if ((unsigned int)len > ctrl->read_bytes - ctrl->index) {
- printf("%s beyond end of buffer "
- "(%d requested, %u available)\n",
- __func__, len, ctrl->read_bytes - ctrl->index);
-
- ctrl->index = ctrl->read_bytes;
- return -EINVAL;
- }
-
- for (i = 0; i < len; i++)
- if (in_8(&ctrl->addr[ctrl->index + i]) != buf[i])
- break;
-
- ctrl->index += len;
- return i == len && ctrl->status == IFC_NAND_EVTER_STAT_OPC ? 0 : -EIO;
-}
-
/* This function is called after Program and Erase Operations to
* check for success or failure.
*/
{
struct fsl_ifc_mtd *priv = chip->priv;
struct fsl_ifc_ctrl *ctrl = priv->ctrl;
- struct fsl_ifc *ifc = ctrl->regs;
+ struct fsl_ifc_runtime *ifc = ctrl->regs.rregs;
u32 nand_fsr;
if (ctrl->status != IFC_NAND_EVTER_STAT_OPC)
static void fsl_ifc_ctrl_init(void)
{
+ uint32_t ver = 0;
ifc_ctrl = kzalloc(sizeof(*ifc_ctrl), GFP_KERNEL);
if (!ifc_ctrl)
return;
- ifc_ctrl->regs = IFC_BASE_ADDR;
+ ifc_ctrl->regs.gregs = IFC_FCM_BASE_ADDR;
+
+ ver = ifc_in32(&ifc_ctrl->regs.gregs->ifc_rev);
+ if (ver >= FSL_IFC_V2_0_0)
+ ifc_ctrl->regs.rregs =
+ (void *)CONFIG_SYS_IFC_ADDR + IFC_RREGS_64KOFFSET;
+ else
+ ifc_ctrl->regs.rregs =
+ (void *)CONFIG_SYS_IFC_ADDR + IFC_RREGS_4KOFFSET;
/* clear event registers */
- ifc_out32(&ifc_ctrl->regs->ifc_nand.nand_evter_stat, ~0U);
- ifc_out32(&ifc_ctrl->regs->ifc_nand.pgrdcmpl_evt_stat, ~0U);
+ ifc_out32(&ifc_ctrl->regs.rregs->ifc_nand.nand_evter_stat, ~0U);
+ ifc_out32(&ifc_ctrl->regs.rregs->ifc_nand.pgrdcmpl_evt_stat, ~0U);
/* Enable error and event for any detected errors */
- ifc_out32(&ifc_ctrl->regs->ifc_nand.nand_evter_en,
+ ifc_out32(&ifc_ctrl->regs.rregs->ifc_nand.nand_evter_en,
IFC_NAND_EVTER_EN_OPC_EN |
IFC_NAND_EVTER_EN_PGRDCMPL_EN |
IFC_NAND_EVTER_EN_FTOER_EN |
IFC_NAND_EVTER_EN_WPER_EN);
- ifc_out32(&ifc_ctrl->regs->ifc_nand.ncfgr, 0x0);
+ ifc_out32(&ifc_ctrl->regs.rregs->ifc_nand.ncfgr, 0x0);
}
static void fsl_ifc_select_chip(struct mtd_info *mtd, int chip)
{
}
-static void fsl_ifc_sram_init(void)
+static int fsl_ifc_sram_init(uint32_t ver)
{
- struct fsl_ifc *ifc = ifc_ctrl->regs;
+ struct fsl_ifc_runtime *ifc = ifc_ctrl->regs.rregs;
uint32_t cs = 0, csor = 0, csor_8k = 0, csor_ext = 0;
- long long end_tick;
+ uint32_t ncfgr = 0;
+ u32 timeo = (CONFIG_SYS_HZ * 10) / 1000;
+ u32 time_start;
+
+ if (ver > FSL_IFC_V1_1_0) {
+ ncfgr = ifc_in32(&ifc->ifc_nand.ncfgr);
+ ifc_out32(&ifc->ifc_nand.ncfgr, ncfgr | IFC_NAND_SRAM_INIT_EN);
+
+ /* wait for SRAM_INIT bit to be clear or timeout */
+ time_start = get_timer(0);
+ while (get_timer(time_start) < timeo) {
+ ifc_ctrl->status =
+ ifc_in32(&ifc->ifc_nand.nand_evter_stat);
+
+ if (!(ifc_ctrl->status & IFC_NAND_SRAM_INIT_EN))
+ return 0;
+ }
+ printf("fsl-ifc: Failed to Initialise SRAM\n");
+ return 1;
+ }
cs = ifc_ctrl->cs_nand >> IFC_NAND_CSEL_SHIFT;
/* Save CSOR and CSOR_ext */
- csor = ifc_in32(&ifc_ctrl->regs->csor_cs[cs].csor);
- csor_ext = ifc_in32(&ifc_ctrl->regs->csor_cs[cs].csor_ext);
+ csor = ifc_in32(&ifc_ctrl->regs.gregs->csor_cs[cs].csor);
+ csor_ext = ifc_in32(&ifc_ctrl->regs.gregs->csor_cs[cs].csor_ext);
/* chage PageSize 8K and SpareSize 1K*/
csor_8k = (csor & ~(CSOR_NAND_PGS_MASK)) | 0x0018C000;
- ifc_out32(&ifc_ctrl->regs->csor_cs[cs].csor, csor_8k);
- ifc_out32(&ifc_ctrl->regs->csor_cs[cs].csor_ext, 0x0000400);
+ ifc_out32(&ifc_ctrl->regs.gregs->csor_cs[cs].csor, csor_8k);
+ ifc_out32(&ifc_ctrl->regs.gregs->csor_cs[cs].csor_ext, 0x0000400);
/* READID */
ifc_out32(&ifc->ifc_nand.nand_fir0,
/* start read seq */
ifc_out32(&ifc->ifc_nand.nandseq_strt, IFC_NAND_SEQ_STRT_FIR_STRT);
- /* wait for NAND Machine complete flag or timeout */
- end_tick = usec2ticks(IFC_TIMEOUT_MSECS * 1000) + get_ticks();
+ time_start = get_timer(0);
- while (end_tick > get_ticks()) {
+ while (get_timer(time_start) < timeo) {
ifc_ctrl->status = ifc_in32(&ifc->ifc_nand.nand_evter_stat);
if (ifc_ctrl->status & IFC_NAND_EVTER_STAT_OPC)
break;
}
+ if (ifc_ctrl->status != IFC_NAND_EVTER_STAT_OPC) {
+ printf("fsl-ifc: Failed to Initialise SRAM\n");
+ return 1;
+ }
+
ifc_out32(&ifc->ifc_nand.nand_evter_stat, ifc_ctrl->status);
/* Restore CSOR and CSOR_ext */
- ifc_out32(&ifc_ctrl->regs->csor_cs[cs].csor, csor);
- ifc_out32(&ifc_ctrl->regs->csor_cs[cs].csor_ext, csor_ext);
+ ifc_out32(&ifc_ctrl->regs.gregs->csor_cs[cs].csor, csor);
+ ifc_out32(&ifc_ctrl->regs.gregs->csor_cs[cs].csor_ext, csor_ext);
+
+ return 0;
}
static int fsl_ifc_chip_init(int devnum, u8 *addr)
struct nand_chip *nand;
struct fsl_ifc_mtd *priv;
struct nand_ecclayout *layout;
+ struct fsl_ifc_fcm *gregs = NULL;
uint32_t cspr = 0, csor = 0, ver = 0;
- int ret;
+ int ret = 0;
if (!ifc_ctrl) {
fsl_ifc_ctrl_init();
priv->ctrl = ifc_ctrl;
priv->vbase = addr;
+ gregs = ifc_ctrl->regs.gregs;
/* Find which chip select it is connected to.
*/
for (priv->bank = 0; priv->bank < MAX_BANKS; priv->bank++) {
phys_addr_t phys_addr = virt_to_phys(addr);
- cspr = ifc_in32(&ifc_ctrl->regs->cspr_cs[priv->bank].cspr);
- csor = ifc_in32(&ifc_ctrl->regs->csor_cs[priv->bank].csor);
+ cspr = ifc_in32(&gregs->cspr_cs[priv->bank].cspr);
+ csor = ifc_in32(&gregs->csor_cs[priv->bank].csor);
if ((cspr & CSPR_V) && (cspr & CSPR_MSEL) == CSPR_MSEL_NAND &&
(cspr & CSPR_BA) == CSPR_PHYS_ADDR(phys_addr)) {
nand->write_buf = fsl_ifc_write_buf;
nand->read_buf = fsl_ifc_read_buf;
- nand->verify_buf = fsl_ifc_verify_buf;
nand->select_chip = fsl_ifc_select_chip;
nand->cmdfunc = fsl_ifc_cmdfunc;
nand->waitfunc = fsl_ifc_wait;
nand->ecc.mode = NAND_ECC_SOFT;
}
- ver = ifc_in32(&ifc_ctrl->regs->ifc_rev);
- if (ver == FSL_IFC_V1_1_0)
- fsl_ifc_sram_init();
+ ver = ifc_in32(&gregs->ifc_rev);
+ if (ver >= FSL_IFC_V1_1_0)
+ ret = fsl_ifc_sram_init(ver);
+ if (ret)
+ return ret;
+
+ if (ver >= FSL_IFC_V2_0_0)
+ priv->bufnum_mask = (priv->bufnum_mask * 2) + 1;
ret = nand_scan_ident(mtd, 1, NULL);
if (ret)
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