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Subject[PATCH v3 16/37] mtd: nand: denali_dt: add compatible strings for UniPhier SoC variants
Date
Add two compatible strings for UniPhier SoCs.

"socionext,uniphier-denali-nand-v5a" is used on UniPhier sLD3, LD4,
Pro4, sLD8 SoCs.

"socionext,uniphier-denali-nand-v5b" is used on UniPhier Pro5, PXs2,
LD6b, LD11, LD20 SoCs.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

Changes in v3: None
Changes in v2:
- Change the compatible strings
- Fix the ecc_strength_capability
- Override revision number for the newer one

.../devicetree/bindings/mtd/denali-nand.txt | 6 ++++++
drivers/mtd/nand/denali_dt.c | 23 ++++++++++++++++++++++
2 files changed, 29 insertions(+)

diff --git a/Documentation/devicetree/bindings/mtd/denali-nand.txt b/Documentation/devicetree/bindings/mtd/denali-nand.txt
index 647618e..0b08ea5 100644
--- a/Documentation/devicetree/bindings/mtd/denali-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/denali-nand.txt
@@ -3,6 +3,8 @@
Required properties:
- compatible : should be one of the following:
"altr,socfpga-denali-nand" - for Altera SOCFPGA
+ "socionext,uniphier-denali-nand-v5a" - for Socionext UniPhier (v5a)
+ "socionext,uniphier-denali-nand-v5b" - for Socionext 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.
@@ -10,9 +12,13 @@ Required properties:
Optional properties:
- nand-ecc-step-size: must be 512 or 1024. If not specified, default to:
512 for "altr,socfpga-denali-nand"
+ 1024 for "socionext,uniphier-denali-nand-v5a"
+ 1024 for "socionext,uniphier-denali-nand-v5b"
see nand.txt for details.
- nand-ecc-strength: see nand.txt for details. Available values are:
8, 15 for "altr,socfpga-denali-nand"
+ 8, 16, 24 for "socionext,uniphier-denali-nand-v5a"
+ 8, 16 for "socionext,uniphier-denali-nand-v5b"
- nand-ecc-maximize: see nand.txt for details

Note:
diff --git a/drivers/mtd/nand/denali_dt.c b/drivers/mtd/nand/denali_dt.c
index c3bc333..1f2f68a 100644
--- a/drivers/mtd/nand/denali_dt.c
+++ b/drivers/mtd/nand/denali_dt.c
@@ -41,11 +41,34 @@ static const struct denali_dt_data denali_socfpga_data = {
DENALI_CAP_ECC_SIZE_512,
};

+static const struct denali_dt_data denali_uniphier_v5a_data = {
+ .ecc_strength_avail = BIT(24) | BIT(16) | BIT(8),
+ .caps = DENALI_CAP_HW_ECC_FIXUP |
+ DENALI_CAP_DMA_64BIT |
+ DENALI_CAP_ECC_SIZE_1024,
+};
+
+static const struct denali_dt_data denali_uniphier_v5b_data = {
+ .revision = 0x0501,
+ .ecc_strength_avail = BIT(16) | BIT(8),
+ .caps = DENALI_CAP_HW_ECC_FIXUP |
+ DENALI_CAP_DMA_64BIT |
+ DENALI_CAP_ECC_SIZE_1024,
+};
+
static const struct of_device_id denali_nand_dt_ids[] = {
{
.compatible = "altr,socfpga-denali-nand",
.data = &denali_socfpga_data,
},
+ {
+ .compatible = "socionext,uniphier-denali-nand-v5a",
+ .data = &denali_uniphier_v5a_data,
+ },
+ {
+ .compatible = "socionext,uniphier-denali-nand-v5b",
+ .data = &denali_uniphier_v5b_data,
+ },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, denali_nand_dt_ids);
--
2.7.4
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