The NAND flash controller (NFC) on the AC5/AC5X SoC is the same as the NFC used on other Marvell SoCs. It does have the additional restriction of only supporting SDR timing modes up to 3.
Signed-off-by: Chris Packham judge.packham@gmail.com --- drivers/mtd/nand/raw/pxa3xx_nand.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/drivers/mtd/nand/raw/pxa3xx_nand.c b/drivers/mtd/nand/raw/pxa3xx_nand.c index fcd1b9c63614..9dee580ab9c2 100644 --- a/drivers/mtd/nand/raw/pxa3xx_nand.c +++ b/drivers/mtd/nand/raw/pxa3xx_nand.c @@ -167,6 +167,7 @@ enum pxa3xx_nand_variant { PXA3XX_NAND_VARIANT_PXA, PXA3XX_NAND_VARIANT_ARMADA370, PXA3XX_NAND_VARIANT_ARMADA_8K, + PXA3XX_NAND_VARIANT_AC5, };
struct pxa3xx_nand_host { @@ -391,6 +392,10 @@ static const struct udevice_id pxa3xx_nand_dt_ids[] = { .compatible = "marvell,armada-8k-nand-controller", .data = PXA3XX_NAND_VARIANT_ARMADA_8K, }, + { + .compatible = "marvell,mvebu-ac5-pxa3xx-nand", + .data = PXA3XX_NAND_VARIANT_AC5, + }, {} };
@@ -505,6 +510,9 @@ static int pxa3xx_nand_init_timings(struct pxa3xx_nand_host *host) if (mode < 0) mode = 0;
+ if (info->variant == PXA3XX_NAND_VARIANT_AC5) + mode = min(mode, 3); + timings = onfi_async_timing_mode_to_sdr_timings(mode); if (IS_ERR(timings)) return PTR_ERR(timings); @@ -730,7 +738,8 @@ static irqreturn_t pxa3xx_nand_irq(struct pxa3xx_nand_info *info)
/* NDCB3 register is available in NFCv2 (Armada 370/XP SoC) */ if (info->variant == PXA3XX_NAND_VARIANT_ARMADA370 || - info->variant == PXA3XX_NAND_VARIANT_ARMADA_8K) + info->variant == PXA3XX_NAND_VARIANT_ARMADA_8K || + info->variant == PXA3XX_NAND_VARIANT_AC5) nand_writel(info, NDCB0, info->ndcb3); }
@@ -1579,7 +1588,8 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd)
/* Device detection must be done with ECC disabled */ if (info->variant == PXA3XX_NAND_VARIANT_ARMADA370 || - info->variant == PXA3XX_NAND_VARIANT_ARMADA_8K) + info->variant == PXA3XX_NAND_VARIANT_ARMADA_8K || + info->variant == PXA3XX_NAND_VARIANT_AC5) nand_writel(info, NDECCCTRL, 0x0);
if (nand_scan_ident(mtd, 1, NULL)) @@ -1630,7 +1640,8 @@ static int pxa3xx_nand_scan(struct mtd_info *mtd) */ if (mtd->writesize > info->chunk_size) { if (info->variant == PXA3XX_NAND_VARIANT_ARMADA370 || - info->variant == PXA3XX_NAND_VARIANT_ARMADA_8K) { + info->variant == PXA3XX_NAND_VARIANT_ARMADA_8K || + info->variant == PXA3XX_NAND_VARIANT_AC5) { chip->cmdfunc = nand_cmdfunc_extended; } else { dev_err(mtd->dev,