Merge branch 'nand/next' of git://git.kernel.org/pub/scm/linux/kernel…

…/git/mtd/linux.git

Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml

@@ -0,0 +1,93 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/amlogic,meson-nand.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic NAND Flash Controller (NFC) for GXBB/GXL/AXG family SoCs
+
+allOf:
+  - $ref: nand-controller.yaml
+
+maintainers:
+  - liang.yang@amlogic.com
+
+properties:
+  compatible:
+    enum:
+      - amlogic,meson-gxl-nfc
+      - amlogic,meson-axg-nfc
+
+  reg:
+    maxItems: 2
+
+  reg-names:
+    items:
+      - const: nfc
+      - const: emmc
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    minItems: 2
+
+  clock-names:
+    items:
+      - const: core
+      - const: device
+
+patternProperties:
+  "^nand@[0-7]$":
+    type: object
+    properties:
+      reg:
+        minimum: 0
+        maximum: 1
+
+      nand-ecc-mode:
+        const: hw
+
+      nand-ecc-step-size:
+        const: 1024
+
+      nand-ecc-strength:
+        enum: [8, 16, 24, 30, 40, 50, 60]
+        description: |
+          The ECC configurations that can be supported are as follows.
+            meson-gxl-nfc 8, 16, 24, 30, 40, 50, 60
+            meson-axg-nfc 8
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/axg-clkc.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    nand-controller@ffe07800 {
+      compatible = "amlogic,meson-axg-nfc";
+      reg = <0xffe07800 0x100>, <0xffe07000 0x800>;
+      reg-names = "nfc", "emmc";
+      interrupts = <GIC_SPI 34 IRQ_TYPE_EDGE_RISING>;
+      clocks = <&clkc CLKID_SD_EMMC_C>,  <&clkc CLKID_FCLK_DIV2>;
+      clock-names = "core", "device";
+
+      pinctrl-0 = <&nand_pins>;
+      pinctrl-names = "default";
+
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      nand@0 {
+        reg = <0>;
+      };
+    };
+
+...

Documentation/devicetree/bindings/mtd/intel,lgm-nand.yaml → Documentation/devicetree/bindings/mtd/intel,lgm-ebunand.yaml

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
 %YAML 1.2
 ---
-$id: http://devicetree.org/schemas/mtd/intel,lgm-nand.yaml#
+$id: http://devicetree.org/schemas/mtd/intel,lgm-ebunand.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Intel LGM SoC NAND Controller Device Tree Bindings
@@ -14,7 +14,7 @@ maintainers:
 
 properties:
   compatible:
-    const: intel,lgm-nand
+    const: intel,lgm-ebunand
 
   reg:
     maxItems: 6
@@ -51,7 +51,7 @@ patternProperties:
     properties:
       reg:
         minimum: 0
-        maximum: 7
+        maximum: 1
 
       nand-ecc-mode: true
 
@@ -75,7 +75,7 @@ additionalProperties: false
 examples:
   - |
     nand-controller@e0f00000 {
-      compatible = "intel,lgm-nand";
+      compatible = "intel,lgm-ebunand";
       reg = <0xe0f00000 0x100>,
             <0xe1000000 0x300>,
             <0xe1400000 0x8000>,

drivers/mtd/nand/bbt.c

@@ -24,11 +24,8 @@ int nanddev_bbt_init(struct nand_device *nand)
 {
 	unsigned int bits_per_block = fls(NAND_BBT_BLOCK_NUM_STATUS);
 	unsigned int nblocks = nanddev_neraseblocks(nand);
-	unsigned int nwords = DIV_ROUND_UP(nblocks * bits_per_block,
-					   BITS_PER_LONG);
 
-	nand->bbt.cache = kcalloc(nwords, sizeof(*nand->bbt.cache),
-				  GFP_KERNEL);
+	nand->bbt.cache = bitmap_zalloc(nblocks * bits_per_block, GFP_KERNEL);
 	if (!nand->bbt.cache)
 		return -ENOMEM;
 
@@ -44,7 +41,7 @@ EXPORT_SYMBOL_GPL(nanddev_bbt_init);
  */
 void nanddev_bbt_cleanup(struct nand_device *nand)
 {
-	kfree(nand->bbt.cache);
+	bitmap_free(nand->bbt.cache);
 }
 EXPORT_SYMBOL_GPL(nanddev_bbt_cleanup);
 

drivers/mtd/nand/raw/Kconfig

@@ -200,27 +200,7 @@ config MTD_NAND_TMIO
 	  Support for NAND flash connected to a Toshiba Mobile IO
 	  Controller in some PDAs, including the Sharp SL6000x.
 
-config MTD_NAND_BRCMNAND
-	tristate "Broadcom STB NAND controller"
-	depends on ARM || ARM64 || MIPS || COMPILE_TEST
-	depends on HAS_IOMEM
-	help
-	  Enables the Broadcom NAND controller driver. The controller was
-	  originally designed for Set-Top Box but is used on various BCM7xxx,
-	  BCM3xxx, BCM63xxx, iProc/Cygnus and more.
-
-if MTD_NAND_BRCMNAND
-
-config MTD_NAND_BRCMNAND_BCMA
-	tristate "Broadcom BCMA NAND controller"
-	depends on BCMA_NFLASH
-	depends on BCMA
-	help
-	  Enables the BRCMNAND controller over BCMA on BCM47186/BCM5358 SoCs.
-	  The glue driver will take care of performing the low-level I/O
-	  operations to interface the BRCMNAND controller over the BCMA bus.
-
-endif # MTD_NAND_BRCMNAND
+source "drivers/mtd/nand/raw/brcmnand/Kconfig"
 
 config MTD_NAND_BCM47XXNFLASH
 	tristate "BCM4706 BCMA NAND controller"
@@ -410,7 +390,7 @@ config MTD_NAND_STM32_FMC2
 
 config MTD_NAND_MESON
 	tristate "Support for NAND controller on Amlogic's Meson SoCs"
-	depends on ARCH_MESON || COMPILE_TEST
+	depends on COMMON_CLK && (ARCH_MESON || COMPILE_TEST)
 	select MFD_SYSCON
 	help
 	  Enables support for NAND controller on Amlogic's Meson SoCs.

drivers/mtd/nand/raw/arasan-nand-controller.c

@@ -915,7 +915,7 @@ static int anfc_check_op(struct nand_chip *chip,
 			if (instr->ctx.data.len > ANFC_MAX_CHUNK_SIZE)
 				return -ENOTSUPP;
 
-			if (anfc_pkt_len_config(instr->ctx.data.len, 0, 0))
+			if (anfc_pkt_len_config(instr->ctx.data.len, NULL, NULL))
 				return -ENOTSUPP;
 
 			break;

drivers/mtd/nand/raw/atmel/nand-controller.c

@@ -405,6 +405,7 @@ static int atmel_nand_dma_transfer(struct atmel_nand_controller *nc,
 
 	dma_async_issue_pending(nc->dmac);
 	wait_for_completion(&finished);
+	dma_unmap_single(nc->dev, buf_dma, len, dir);
 
 	return 0;
 

drivers/mtd/nand/raw/bcm47xxnflash/ops_bcm4706.c

@@ -14,7 +14,7 @@
 #include <linux/bcma/bcma.h>
 
 /* Broadcom uses 1'000'000 but it seems to be too many. Tests on WNDR4500 has
- * shown ~1000 retries as maxiumum. */
+ * shown ~1000 retries as maximum. */
 #define NFLASH_READY_RETRIES		10000
 
 #define NFLASH_SECTOR_SIZE		512

drivers/mtd/nand/raw/brcmnand/Kconfig

@@ -0,0 +1,49 @@
+config MTD_NAND_BRCMNAND
+	tristate "Broadcom STB NAND controller"
+	depends on ARM || ARM64 || MIPS || COMPILE_TEST
+	depends on HAS_IOMEM
+	help
+	  Enables the Broadcom NAND controller driver. The controller was
+	  originally designed for Set-Top Box but is used on various BCM7xxx,
+	  BCM3xxx, BCM63xxx, iProc/Cygnus and more.
+
+if MTD_NAND_BRCMNAND
+
+config MTD_NAND_BRCMNAND_BCM63XX
+	tristate "Broadcom BCM63xx NAND controller glue"
+	default BCM63XX
+	help
+	  Enables the BRCMNAND glue driver to register the NAND controller
+	  on Broadcom BCM63xx MIPS-based DSL platforms.
+
+config MTD_NAND_BRCMNAND_BCMA
+	tristate "Broadcom BCMA NAND controller"
+	depends on BCMA_NFLASH
+	depends on BCMA
+	help
+	  Enables the BRCMNAND controller over BCMA on BCM47186/BCM5358 SoCs.
+	  The glue driver will take care of performing the low-level I/O
+	  operations to interface the BRCMNAND controller over the BCMA bus.
+
+config MTD_NAND_BRCMNAND_BCMBCA
+	tristate "Broadcom BCMBCA NAND controller glue"
+	default ARCH_BCMBCA
+	help
+	  Enables the BRCMNAND glue driver to register the NAND controller
+	  on Broadcom BCA platforms.
+
+config MTD_NAND_BRCMNAND_BRCMSTB
+	tristate "Broadcom STB Nand controller glue"
+	default ARCH_BRCMSTB
+	help
+	  Enables the BRCMNAND glue driver to register the NAND controller
+	  on Broadcom STB platforms.
+
+config MTD_NAND_BRCMNAND_IPROC
+	tristate "Broadcom iProc NAND controller glue"
+	default ARCH_BCM_IPROC
+	help
+	  Enables the BRCMNAND controller glue driver to register the NAND
+	  controller on Broadcom iProc platforms.
+
+endif # MTD_NAND_BRCMNAND

drivers/mtd/nand/raw/brcmnand/Makefile

@@ -1,10 +1,10 @@
 # SPDX-License-Identifier: GPL-2.0
 # link order matters; don't link the more generic brcmstb_nand.o before the
 # more specific iproc_nand.o, for instance
-obj-$(CONFIG_MTD_NAND_BRCMNAND)		+= iproc_nand.o
-obj-$(CONFIG_MTD_NAND_BRCMNAND)		+= bcm63138_nand.o
-obj-$(CONFIG_MTD_NAND_BRCMNAND)		+= bcm6368_nand.o
-obj-$(CONFIG_MTD_NAND_BRCMNAND)		+= brcmstb_nand.o
+obj-$(CONFIG_MTD_NAND_BRCMNAND_IPROC)	+= iproc_nand.o
+obj-$(CONFIG_MTD_NAND_BRCMNAND_BCMBCA)	+= bcm63138_nand.o
+obj-$(CONFIG_MTD_NAND_BRCMNAND_BCM63XX)	+= bcm6368_nand.o
+obj-$(CONFIG_MTD_NAND_BRCMNAND_BRCMSTB)	+= brcmstb_nand.o
 obj-$(CONFIG_MTD_NAND_BRCMNAND)		+= brcmnand.o
 
 obj-$(CONFIG_MTD_NAND_BRCMNAND_BCMA)	+= bcma_nand.o

drivers/mtd/nand/raw/cadence-nand-controller.c

@@ -1979,7 +1979,6 @@ static int cadence_nand_force_byte_access(struct nand_chip *chip,
 					  bool force_8bit)
 {
 	struct cdns_nand_ctrl *cdns_ctrl = to_cdns_nand_ctrl(chip->controller);
-	int status;
 
 	/*
 	 * Callers of this function do not verify if the NAND is using a 16-bit
@@ -1990,9 +1989,7 @@ static int cadence_nand_force_byte_access(struct nand_chip *chip,
 	if (!(chip->options & NAND_BUSWIDTH_16))
 		return 0;
 
-	status = cadence_nand_set_access_width16(cdns_ctrl, !force_8bit);
-
-	return status;
+	return cadence_nand_set_access_width16(cdns_ctrl, !force_8bit);
 }
 
 static int cadence_nand_cmd_opcode(struct nand_chip *chip,

drivers/mtd/nand/raw/cafe_nand.c

@@ -358,7 +358,7 @@ static int cafe_nand_read_oob(struct nand_chip *chip, int page)
 	return nand_read_oob_op(chip, page, 0, chip->oob_poi, mtd->oobsize);
 }
 /**
- * cafe_nand_read_page_syndrome - [REPLACEABLE] hardware ecc syndrome based page read
+ * cafe_nand_read_page - [REPLACEABLE] hardware ecc syndrome based page read
  * @chip:	nand chip info structure
  * @buf:	buffer to store read data
  * @oob_required:	caller expects OOB data read to chip->oob_poi