linux-kernel - [PATCH v3 16/37] mtd: nand: denali_dt: add compatible strings for UniPhier SoC variants

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Message-Id: <1490856383-31560-17-git-send-email-yamada.masahiro@socionext.com>
Date:   Thu, 30 Mar 2017 15:46:02 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     linux-mtd@...ts.infradead.org
Cc:     Enrico Jorns <ejo@...gutronix.de>,
        Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>,
        Dinh Nguyen <dinguyen@...nel.org>,
        Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Graham Moore <grmoore@...nsource.altera.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Chuanxiao Dong <chuanxiao.dong@...el.com>,
        Jassi Brar <jaswinder.singh@...aro.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Brian Norris <computersforpeace@...il.com>,
        Richard Weinberger <richard@....at>,
        Cyrille Pitchen <cyrille.pitchen@...el.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>
Subject: [PATCH v3 16/37] mtd: nand: denali_dt: add compatible strings for UniPhier SoC variants

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@...ionext.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