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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-09-15 12:43:19 (GMT) |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-09-18 11:26:00 (GMT) |
| commit | 6c71b6f45474e58cb85370951f4c144495778e0b (patch) | |
| tree | 2504cddc42903b42bd16ef42a61e146e86de83e8 /drivers/mtd/nand/denali_dt.c | |
| parent | 08cebeeaadd9192dd501308ac6a8b858ffa255c1 (diff) | |
| download | u-boot-6c71b6f45474e58cb85370951f4c144495778e0b.tar.xz | |
mtd: nand: denali: allow to override corrupted revision register
The Denali IP does not update the revision register properly.
Allow to override it with SoC data associated with compatible.
Linux had already finished big surgery of this driver, but I need
to prepare the NAND core before the full sync of the driver.
For now, I am fixing the most fatal problem on UniPhier platform.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'drivers/mtd/nand/denali_dt.c')
| -rw-r--r-- | drivers/mtd/nand/denali_dt.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/mtd/nand/denali_dt.c b/drivers/mtd/nand/denali_dt.c index 0a6155c..4afd679 100644 --- a/drivers/mtd/nand/denali_dt.c +++ b/drivers/mtd/nand/denali_dt.c @@ -12,15 +12,38 @@ #include "denali.h" +struct denali_dt_data { + unsigned int revision; + unsigned int caps; +}; + +static const struct denali_dt_data denali_socfpga_data = { + .caps = DENALI_CAP_HW_ECC_FIXUP, +}; + +static const struct denali_dt_data denali_uniphier_v5a_data = { + .caps = DENALI_CAP_HW_ECC_FIXUP | + DENALI_CAP_DMA_64BIT, +}; + +static const struct denali_dt_data denali_uniphier_v5b_data = { + .revision = 0x0501, + .caps = DENALI_CAP_HW_ECC_FIXUP | + DENALI_CAP_DMA_64BIT, +}; + static const struct udevice_id denali_nand_dt_ids[] = { { .compatible = "altr,socfpga-denali-nand", + .data = (unsigned long)&denali_socfpga_data, }, { .compatible = "socionext,uniphier-denali-nand-v5a", + .data = (unsigned long)&denali_uniphier_v5a_data, }, { .compatible = "socionext,uniphier-denali-nand-v5b", + .data = (unsigned long)&denali_uniphier_v5b_data, }, { /* sentinel */ } }; @@ -28,9 +51,16 @@ static const struct udevice_id denali_nand_dt_ids[] = { static int denali_dt_probe(struct udevice *dev) { struct denali_nand_info *denali = dev_get_priv(dev); + const struct denali_dt_data *data; struct resource res; int ret; + data = (void *)dev_get_driver_data(dev); + if (data) { + denali->revision = data->revision; + denali->caps = data->caps; + } + ret = dev_read_resource_byname(dev, "denali_reg", &res); if (ret) return ret; |