Merge tag 'mtd/for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull MTD updates from Miquel Raynal:
 "MTD:

   - The Carillo Ranch driver has been removed

   - Top level mtd bindings have received a couple of improvements
     (references, selects)

   - The ssfdc driver received few minor adjustments

   - The usual load of misc/small improvements and fixes

  Raw NAND:

   - The main series brought is an update of the Broadcom support to
     support all BCMBCA SoCs and their specificity (ECC, write
     protection, configuration straps), plus a few misc fixes and
     changes in the main driver. Device tree updates are also part of
     this PR, initially because of a misunderstanding on my side.

   - The STM32_FMC2 controller driver is also upgraded to properly
     support MP1 and MP25 SoCs.

   - A new compatible is added for an Atmel flavor.

   - Among all these feature changes, there is as well a load of
     continuous read related fixes, avoiding more corner conditions and
     clarifying the logic. Finally a few miscellaneous fixes are made to
     the core, the lpx32xx_mlc, fsl_lbc, Meson and Atmel controller
     driver, as well as final one in the Hynix vendor driver.

  SPI-NAND:

   - The ESMT support has been extended to match 5 bytes ID to avoid
     collisions. Winbond support on its side receives support for
     W25N04KV chips.

  SPI NOR:

   - SPI NOR gets the non uniform erase code cleaned. We stopped using
     bitmasks for erase types and flags, and instead introduced
     dedicated members. We then passed the SPI NOR erase map to MTD.
     Users can now determine the erase regions and make informed
     decisions on partitions size.

   - An optional interrupt property is now described in the bindings"

* tag 'mtd/for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (50 commits)
  mtd: rawnand: Ensure continuous reads are well disabled
  mtd: rawnand: Constrain even more when continuous reads are enabled
  mtd: rawnand: brcmnand: Add support for getting ecc setting from strap
  mtd: rawnand: brcmnand: fix sparse warnings
  mtd: nand: raw: atmel: Fix comment in timings preparation
  mtd: rawnand: Ensure all continuous terms are always in sync
  mtd: rawnand: Add a helper for calculating a page index
  mtd: rawnand: Fix and simplify again the continuous read derivations
  mtd: rawnand: hynix: remove @nand_technology kernel-doc description
  dt-bindings: atmel-nand: add microchip,sam9x7-pmecc
  mtd: rawnand: brcmnand: Support write protection setting from dts
  mtd: rawnand: brcmnand: Add BCMBCA read data bus interface
  mtd: rawnand: brcmnand: Rename bcm63138 nand driver
  arm64: dts: broadcom: bcmbca: Update router boards
  arm64: dts: broadcom: bcmbca: Add NAND controller node
  ARM: dts: broadcom: bcmbca: Add NAND controller node
  mtd: spi-nor: core: correct type of i
  mtd: spi-nor: core: set mtd->eraseregions for non-uniform erase map
  mtd: spi-nor: core: get rid of SNOR_OVERLAID_REGION flag
  mtd: spi-nor: core: get rid of SNOR_LAST_REGION flag
  ...

17 files changed, 191 insertions, 8 deletions

diff --git a/arch/arm/boot/dts/broadcom/bcm47622.dtsi b/arch/arm/boot/dts/broadcom/bcm47622.dtsi
index 7cd38de118c3..485863f9c420 100644
--- a/arch/arm/boot/dts/broadcom/bcm47622.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm47622.dtsi
@@ -138,6 +138,20 @@
 			status = "disabled";
 		};
 
+		nand_controller: nand-controller@1800 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "brcm,nand-bcm63138", "brcm,brcmnand-v7.1", "brcm,brcmnand";
+			reg = <0x1800 0x600>, <0x2000 0x10>;
+			reg-names = "nand", "nand-int-base";
+			status = "disabled";
+
+			nandcs: nand@0 {
+				compatible = "brcm,nandcs";
+				reg = <0>;
+			};
+		};
+
 		uart0: serial@12000 {
 			compatible = "arm,pl011", "arm,primecell";
 			reg = <0x12000 0x1000>;
diff --git a/arch/arm/boot/dts/broadcom/bcm63138.dtsi b/arch/arm/boot/dts/broadcom/bcm63138.dtsi
index 4ef02283612b..e74ba6bf370d 100644
--- a/arch/arm/boot/dts/broadcom/bcm63138.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm63138.dtsi
@@ -229,7 +229,12 @@
 			reg-names = "nand", "nand-int-base";
 			status = "disabled";
 			interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
-			interrupt-names = "nand";
+			interrupt-names = "nand_ctlrdy";
+
+			nandcs: nand@0 {
+				compatible = "brcm,nandcs";
+				reg = <0>;
+			};
 		};
 
 		serial@4400 {
diff --git a/arch/arm/boot/dts/broadcom/bcm63148.dtsi b/arch/arm/boot/dts/broadcom/bcm63148.dtsi
index 24431de1810e..53703827ee3f 100644
--- a/arch/arm/boot/dts/broadcom/bcm63148.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm63148.dtsi
@@ -119,5 +119,19 @@
 			num-cs = <8>;
 			status = "disabled";
 		};
+
+		nand_controller: nand-controller@2000 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "brcm,nand-bcm63138", "brcm,brcmnand-v7.1", "brcm,brcmnand";
+			reg = <0x2000 0x600>, <0xf0 0x10>;
+			reg-names = "nand", "nand-int-base";
+			status = "disabled";
+
+			nandcs: nand@0 {
+				compatible = "brcm,nandcs";
+				reg = <0>;
+			};
+		};
 	};
 };
diff --git a/arch/arm/boot/dts/broadcom/bcm63178.dtsi b/arch/arm/boot/dts/broadcom/bcm63178.dtsi
index 3f9aed96babf..6d8d33498983 100644
--- a/arch/arm/boot/dts/broadcom/bcm63178.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm63178.dtsi
@@ -129,6 +129,20 @@
 			status = "disabled";
 		};
 
+		nand_controller: nand-controller@1800 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "brcm,nand-bcm63138", "brcm,brcmnand-v7.1", "brcm,brcmnand";
+			reg = <0x1800 0x600>, <0x2000 0x10>;
+			reg-names = "nand", "nand-int-base";
+			status = "disabled";
+
+			nandcs: nand@0 {
+				compatible = "brcm,nandcs";
+				reg = <0>;
+			};
+		};
+
 		uart0: serial@12000 {
 			compatible = "arm,pl011", "arm,primecell";
 			reg = <0x12000 0x1000>;
diff --git a/arch/arm/boot/dts/broadcom/bcm6756.dtsi b/arch/arm/boot/dts/broadcom/bcm6756.dtsi
index 1d8d957d65dd..6433f8fa5eff 100644
--- a/arch/arm/boot/dts/broadcom/bcm6756.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm6756.dtsi
@@ -139,6 +139,20 @@
 			status = "disabled";
 		};
 
+		nand_controller: nand-controller@1800 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "brcm,nand-bcm63138", "brcm,brcmnand-v7.1", "brcm,brcmnand";
+			reg = <0x1800 0x600>, <0x2000 0x10>;
+			reg-names = "nand", "nand-int-base";
+			status = "disabled";
+
+			nandcs: nand@0 {
+				compatible = "brcm,nandcs";
+				reg = <0>;
+			};
+		};
+
 		uart0: serial@12000 {
 			compatible = "arm,pl011", "arm,primecell";
 			reg = <0x12000 0x1000>;
diff --git a/arch/arm/boot/dts/broadcom/bcm6846.dtsi b/arch/arm/boot/dts/broadcom/bcm6846.dtsi
index cf92cf8c4693..ee361cb00b7c 100644
--- a/arch/arm/boot/dts/broadcom/bcm6846.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm6846.dtsi
@@ -119,5 +119,19 @@
 			num-cs = <8>;
 			status = "disabled";
 		};
+
+		nand_controller: nand-controller@1800 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "brcm,nand-bcm63138", "brcm,brcmnand-v7.1", "brcm,brcmnand";
+			reg = <0x1800 0x600>, <0x2000 0x10>;
+			reg-names = "nand", "nand-int-base";
+			status = "disabled";
+
+			nandcs: nand@0 {
+				compatible = "brcm,nandcs";
+				reg = <0>;
+			};
+		};
 	};
 };
diff --git a/arch/arm/boot/dts/broadcom/bcm6855.dtsi b/arch/arm/boot/dts/broadcom/bcm6855.dtsi
index 52d6bc89f9f8..52915ec6f339 100644
--- a/arch/arm/boot/dts/broadcom/bcm6855.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm6855.dtsi
@@ -129,6 +129,20 @@
 			status = "disabled";
 		};
 
+		nand_controller: nand-controller@1800 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "brcm,nand-bcm63138", "brcm,brcmnand-v7.1", "brcm,brcmnand";
+			reg = <0x1800 0x600>, <0x2000 0x10>;
+			reg-names = "nand", "nand-int-base";
+			status = "disabled";
+
+			nandcs: nand@0 {
+				compatible = "brcm,nandcs";
+				reg = <0>;
+			};
+		};
+
 		uart0: serial@12000 {
 			compatible = "arm,pl011", "arm,primecell";
 			reg = <0x12000 0x1000>;
diff --git a/arch/arm/boot/dts/broadcom/bcm6878.dtsi b/arch/arm/boot/dts/broadcom/bcm6878.dtsi
index 2c5d706bac7e..70cf23a65fdb 100644
--- a/arch/arm/boot/dts/broadcom/bcm6878.dtsi
+++ b/arch/arm/boot/dts/broadcom/bcm6878.dtsi
@@ -120,6 +120,20 @@
 			status = "disabled";
 		};
 
+		nand_controller: nand-controller@1800 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "brcm,nand-bcm63138", "brcm,brcmnand-v7.1", "brcm,brcmnand";
+			reg = <0x1800 0x600>, <0x2000 0x10>;
+			reg-names = "nand", "nand-int-base";
+			status = "disabled";
+
+			nandcs: nand@0 {
+				compatible = "brcm,nandcs";
+				reg = <0>;
+			};
+		};
+
 		uart0: serial@12000 {
 			compatible = "arm,pl011", "arm,primecell";
 			reg = <0x12000 0x1000>;
diff --git a/arch/arm/boot/dts/broadcom/bcm947622.dts b/arch/arm/boot/dts/broadcom/bcm947622.dts
index 93b8ce22678d..6241485408d3 100644
--- a/arch/arm/boot/dts/broadcom/bcm947622.dts
+++ b/arch/arm/boot/dts/broadcom/bcm947622.dts
@@ -32,3 +32,13 @@
 &hsspi {
 	status = "okay";
 };
+
+&nand_controller {
+	brcm,wp-not-connected;
+	status = "okay";
+};
+
+&nandcs {
+	nand-on-flash-bbt;
+	brcm,nand-ecc-use-strap;
+};
diff --git a/arch/arm/boot/dts/broadcom/bcm963138.dts b/arch/arm/boot/dts/broadcom/bcm963138.dts
index 1b405c249213..7fd87e05ec20 100644
--- a/arch/arm/boot/dts/broadcom/bcm963138.dts
+++ b/arch/arm/boot/dts/broadcom/bcm963138.dts
@@ -29,3 +29,13 @@
 &hsspi {
 	status = "okay";
 };
+
+&nand_controller {
+	brcm,wp-not-connected;
+	status = "okay";
+};
+
+&nandcs {
+	nand-on-flash-bbt;
+	brcm,nand-ecc-use-strap;
+};
diff --git a/arch/arm/boot/dts/broadcom/bcm963138dvt.dts b/arch/arm/boot/dts/broadcom/bcm963138dvt.dts
index b5af61853a07..f60d09908ab9 100644
--- a/arch/arm/boot/dts/broadcom/bcm963138dvt.dts
+++ b/arch/arm/boot/dts/broadcom/bcm963138dvt.dts
@@ -32,15 +32,15 @@
 };
 
 &nand_controller {
+	brcm,wp-not-connected;
 	status = "okay";
+};
 
-	nand@0 {
-		compatible = "brcm,nandcs";
-		reg = <0>;
-		nand-ecc-strength = <4>;
-		nand-ecc-step-size = <512>;
-		brcm,nand-oob-sectors-size = <16>;
-	};
+&nandcs {
+	nand-ecc-strength = <4>;
+	nand-ecc-step-size = <512>;
+	brcm,nand-oob-sector-size = <16>;
+	nand-on-flash-bbt;
 };
 
 &ahci {
diff --git a/arch/arm/boot/dts/broadcom/bcm963148.dts b/arch/arm/boot/dts/broadcom/bcm963148.dts
index 1f5d6d783f09..44bca063a327 100644
--- a/arch/arm/boot/dts/broadcom/bcm963148.dts
+++ b/arch/arm/boot/dts/broadcom/bcm963148.dts
@@ -32,3 +32,13 @@
 &hsspi {
 	status = "okay";
 };
+
+&nand_controller {
+	brcm,wp-not-connected;
+	status = "okay";
+};
+
+&nandcs {
+	nand-on-flash-bbt;
+	brcm,nand-ecc-use-strap;
+};
diff --git a/arch/arm/boot/dts/broadcom/bcm963178.dts b/arch/arm/boot/dts/broadcom/bcm963178.dts
index d036e99dd8d1..098a222cd71a 100644
--- a/arch/arm/boot/dts/broadcom/bcm963178.dts
+++ b/arch/arm/boot/dts/broadcom/bcm963178.dts
@@ -32,3 +32,13 @@
 &hsspi {
 	status = "okay";
 };
+
+&nand_controller {
+	brcm,wp-not-connected;
+	status = "okay";
+};
+
+&nandcs {
+	nand-on-flash-bbt;
+	brcm,nand-ecc-use-strap;
+};
diff --git a/arch/arm/boot/dts/broadcom/bcm96756.dts b/arch/arm/boot/dts/broadcom/bcm96756.dts
index 8b104f3fb14a..402038d3cd0c 100644
--- a/arch/arm/boot/dts/broadcom/bcm96756.dts
+++ b/arch/arm/boot/dts/broadcom/bcm96756.dts
@@ -32,3 +32,13 @@
 &hsspi {
 	status = "okay";
 };
+
+&nand_controller {
+	brcm,wp-not-connected;
+	status = "okay";
+};
+
+&nandcs {
+	nand-on-flash-bbt;
+	brcm,nand-ecc-use-strap;
+};
diff --git a/arch/arm/boot/dts/broadcom/bcm96846.dts b/arch/arm/boot/dts/broadcom/bcm96846.dts
index 55852c229608..943896afb7cc 100644
--- a/arch/arm/boot/dts/broadcom/bcm96846.dts
+++ b/arch/arm/boot/dts/broadcom/bcm96846.dts
@@ -32,3 +32,13 @@
 &hsspi {
 	status = "okay";
 };
+
+&nand_controller {
+	brcm,wp-not-connected;
+	status = "okay";
+};
+
+&nandcs {
+	nand-on-flash-bbt;
+	brcm,nand-ecc-use-strap;
+};
diff --git a/arch/arm/boot/dts/broadcom/bcm96855.dts b/arch/arm/boot/dts/broadcom/bcm96855.dts
index 2ad880af2104..571663d9a1ea 100644
--- a/arch/arm/boot/dts/broadcom/bcm96855.dts
+++ b/arch/arm/boot/dts/broadcom/bcm96855.dts
@@ -32,3 +32,13 @@
 &hsspi {
 	status = "okay";
 };
+
+&nand_controller {
+	brcm,wp-not-connected;
+	status = "okay";
+};
+
+&nandcs {
+	nand-on-flash-bbt;
+	brcm,nand-ecc-use-strap;
+};
diff --git a/arch/arm/boot/dts/broadcom/bcm96878.dts b/arch/arm/boot/dts/broadcom/bcm96878.dts
index b7af8ade7a9d..8d6eddd54c6e 100644
--- a/arch/arm/boot/dts/broadcom/bcm96878.dts
+++ b/arch/arm/boot/dts/broadcom/bcm96878.dts
@@ -32,3 +32,13 @@
 &hsspi {
 	status = "okay";
 };
+
+&nand_controller {
+	brcm,wp-not-connected;
+	status = "okay";
+};
+
+&nandcs {
+	nand-on-flash-bbt;
+	brcm,nand-ecc-use-strap;
+};