Add two compatible strings for UniPhier SoCs. The revision register
on both shows revision 5.0, but they are different hardware.
Features:
- DMA engine with 64 bit physical address support
- 1024 byte ECC step size
- 8 / 16 / 24 bit ECC strength
- The n_banks format depends on SoC
Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
---
.../devicetree/bindings/mtd/denali-nand.txt | 10 +++++--
drivers/mtd/nand/denali_dt.c | 33 ++++++++++++++++++++--
2 files changed, 38 insertions(+), 5 deletions(-)
diff --git a/Documentation/devicetree/bindings/mtd/denali-nand.txt b/Documentation/devicetree/bindings/mtd/denali-nand.txt
index 51fe195..cea46e2 100644
--- a/Documentation/devicetree/bindings/mtd/denali-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/denali-nand.txt
@@ -1,13 +1,19 @@
* Denali NAND controller
Required properties:
- - compatible : should be "denali,denali-nand-dt"
+ - compatible : should be one of the following:
+ "denali,denali-nand-dt"
+ "denali,denali-nand-uniphier-v5a"
+ "denali,denali-nand-uniphier-v5b"
- reg : should contain registers location and length for data and reg.
- reg-names: Should contain the reg names "nand_data" and "denali_reg"
- interrupts : The interrupt number.
Optional properties:
- - nand-ecc-step-size: must be 512 or 1024. If not specified, default to 512.
+ - nand-ecc-step-size: must be 512 or 1024. If not specified, default to:
+ 512 for "denali,denali-nand-dt"
+ 1024 for "denali,denali-nand-uniphier-v5a"
+ 1024 for "denali,denali-nand-uniphier-v5b"
see nand.txt for details.
- nand-ecc-strength: see nand.txt for details
- nand-ecc-maximize: see nand.txt for details
diff --git a/drivers/mtd/nand/denali_dt.c b/drivers/mtd/nand/denali_dt.c
index aa1e032..b411889 100644
--- a/drivers/mtd/nand/denali_dt.c
+++ b/drivers/mtd/nand/denali_dt.c
@@ -34,10 +34,37 @@ struct denali_dt_data {
unsigned int caps;
};
+static const int denali_uniphier_ecc_strength[] = {
+ 24, 16, 8, 0,
+};
+
+static const struct denali_dt_data denali_uniphier_v5a_data = {
+ .ecc_strength_avail = denali_uniphier_ecc_strength,
+ .caps = DENALI_CAPS_DMA_64BIT |
+ DENALI_CAPS_ECC_SIZE_1024,
+};
+
+static const struct denali_dt_data denali_uniphier_v5b_data = {
+ .ecc_strength_avail = denali_uniphier_ecc_strength,
+ .caps = DENALI_CAPS_DMA_64BIT |
+ DENALI_CAPS_NEW_N_BANKS_FORMAT |
+ DENALI_CAPS_ECC_SIZE_1024,
+};
+
static const struct of_device_id denali_nand_dt_ids[] = {
- { .compatible = "denali,denali-nand-dt" },
- { /* sentinel */ }
- };
+ {
+ .compatible = "denali,denali-nand-dt",
+ },
+ {
+ .compatible = "denali,denali-nand-uniphier-v5a",
+ .data = &denali_uniphier_v5a_data,
+ },
+ {
+ .compatible = "denali,denali-nand-uniphier-v5b",
+ .data = &denali_uniphier_v5b_data,
+ },
+ { /* sentinel */ }
+};
MODULE_DEVICE_TABLE(of, denali_nand_dt_ids);
--
2.7.4
--
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