linux-kernel - [PATCH] mtd: onenand: Add support for 8Gb datasize onenand

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Message-Id: <20190426150634.5643-1-pawel.mikolaj.chmiel@gmail.com>
Date:   Fri, 26 Apr 2019 17:06:34 +0200
From:   Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>
To:     kyungmin.park@...sung.com
Cc:     bbrezillon@...nel.org, miquel.raynal@...tlin.com, richard@....at,
        dwmw2@...radead.org, computersforpeace@...il.com,
        marek.vasut@...il.com, linux-mtd@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Jonathan Bakker <xc-racer2@...e.ca>,
        Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>
Subject: [PATCH] mtd: onenand: Add support for 8Gb datasize onenand

From: Jonathan Bakker <xc-racer2@...e.ca>

Used in several S5PV210-based Galaxy S devices, among them SGH-T959V,
SGH-T959P, SGH-T839, and SPH-D700.

Signed-off-by: Jonathan Bakker <xc-racer2@...e.ca>
Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>
---
 drivers/mtd/nand/onenand/onenand_base.c | 2 ++
 include/linux/mtd/onenand_regs.h        | 1 +
 2 files changed, 3 insertions(+)

diff --git a/drivers/mtd/nand/onenand/onenand_base.c b/drivers/mtd/nand/onenand/onenand_base.c
index 4ca4b194e7d7..abdef0bd1367 100644
--- a/drivers/mtd/nand/onenand/onenand_base.c
+++ b/drivers/mtd/nand/onenand/onenand_base.c
@@ -3260,6 +3260,8 @@ static void onenand_check_features(struct mtd_info *mtd)
 
 	/* Lock scheme */
 	switch (density) {
+	case ONENAND_DEVICE_DENSITY_8Gb:
+		this->options |= ONENAND_HAS_NOP_1;
 	case ONENAND_DEVICE_DENSITY_4Gb:
 		if (ONENAND_IS_DDP(this))
 			this->options |= ONENAND_HAS_2PLANE;
diff --git a/include/linux/mtd/onenand_regs.h b/include/linux/mtd/onenand_regs.h
index d60130f88eed..9640d707cbf8 100644
--- a/include/linux/mtd/onenand_regs.h
+++ b/include/linux/mtd/onenand_regs.h
@@ -80,6 +80,7 @@
 #define ONENAND_DEVICE_DENSITY_1Gb	(0x003)
 #define ONENAND_DEVICE_DENSITY_2Gb	(0x004)
 #define ONENAND_DEVICE_DENSITY_4Gb	(0x005)
+#define ONENAND_DEVICE_DENSITY_8Gb	(0x006)
 
 /*
  * Version ID Register F002h (R)
-- 
2.20.1