Merge branch 'newsoc/pxa1908' into soc/newsoc

This adds initial support for the Marvell PXA1908 SoC and
"samsung,coreprimevelte", a smartphone using the SoC.

*Important note*: There is a regression on all of the v6.16 RCs where
the board does not boot unrelated to the patches in this set. See:
https://lore.kernel.org/regressions/3367665.aeNJFYEL58@radijator/

USB works and the phone can boot a rootfs from an SD card, but there are
some warnings in the dmesg:

During SMP initialization:
[    0.006519] CPU features: SANITY CHECK: Unexpected variation in SYS_CNTFRQ_EL0. Boot CPU: 0x000000018cba80, CPU1: 0x00000000000000
[    0.006542] CPU features: Unsupported CPU feature variation detected.
[    0.006589] CPU1: Booted secondary processor 0x0000000001 [0x410fd032]
[    0.010710] Detected VIPT I-cache on CPU2
[    0.010716] CPU features: SANITY CHECK: Unexpected variation in SYS_CNTFRQ_EL0. Boot CPU: 0x000000018cba80, CPU2: 0x00000000000000
[    0.010758] CPU2: Booted secondary processor 0x0000000002 [0x410fd032]
[    0.014849] Detected VIPT I-cache on CPU3
[    0.014855] CPU features: SANITY CHECK: Unexpected variation in SYS_CNTFRQ_EL0. Boot CPU: 0x000000018cba80, CPU3: 0x00000000000000
[    0.014895] CPU3: Booted secondary processor 0x0000000003 [0x410fd032]

SMMU probing fails:
[    0.101798] arm-smmu c0010000.iommu: probing hardware configuration...
[    0.101809] arm-smmu c0010000.iommu: SMMUv1 with:
[    0.101816] arm-smmu c0010000.iommu:         no translation support!

A 3.14 based Marvell tree is available on GitHub
acorn-marvell/brillo_pxa_kernel, and a Samsung one on GitHub
CoderCharmander/g361f-kernel.

Andreas Färber attempted to upstream support for this SoC in 2017:
https://lore.kernel.org/lkml/20170222022929.10540-1-afaerber@suse.de/

Signed-off-by: Duje Mihanović <duje@dujemihanovic.xyz>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

* newsoc/pxa1908:
  MAINTAINERS: add myself as Marvell PXA1908 maintainer
  arm64: dts: Add DTS for Marvell PXA1908 and samsung,coreprimevelte
  arm64: Kconfig.platforms: Add config for Marvell PXA1908 platform
  dt-bindings: marvell: Document PXA1908 SoC and samsung,coreprimevelte
  dt-bindings: mmc: sdhci-pxa: restrict pinctrl to pxav1

Author: arndb

Documentation/devicetree/bindings/arm/mrvl/mrvl.yaml

@@ -35,6 +35,11 @@ properties:
           - enum:
               - dell,wyse-ariel
           - const: marvell,mmp3
+      - description: PXA1908 based boards
+        items:
+          - enum:
+              - samsung,coreprimevelte
+          - const: marvell,pxa1908
 
 additionalProperties: true
 

Documentation/devicetree/bindings/mmc/sdhci-pxa.yaml

@@ -30,6 +30,26 @@ allOf:
           maxItems: 1
         reg-names:
           maxItems: 1
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mrvl,pxav1-mmc
+    then:
+      properties:
+        pinctrl-names:
+          description:
+            Optional for supporting PXA168 SDIO IRQ errata to switch CMD pin between
+            SDIO CMD and GPIO mode.
+          items:
+            - const: default
+            - const: state_cmd_gpio
+        pinctrl-0:
+          description:
+            Should contain default pinctrl.
+        pinctrl-1:
+          description:
+            Should switch CMD pin to GPIO mode as a high output.
 
 properties:
   compatible:
@@ -62,22 +82,6 @@ properties:
       - const: io
       - const: core
 
-  pinctrl-names:
-    description:
-      Optional for supporting PXA168 SDIO IRQ errata to switch CMD pin between
-      SDIO CMD and GPIO mode.
-    items:
-      - const: default
-      - const: state_cmd_gpio
-
-  pinctrl-0:
-    description:
-      Should contain default pinctrl.
-
-  pinctrl-1:
-    description:
-      Should switch CMD pin to GPIO mode as a high output.
-
   mrvl,clk-delay-cycles:
     description: Specify a number of cycles to delay for tuning.
     $ref: /schemas/types.yaml#/definitions/uint32

MAINTAINERS

@@ -2787,6 +2787,14 @@ F:	drivers/irqchip/irq-mvebu-*
 F:	drivers/pinctrl/mvebu/
 F:	drivers/rtc/rtc-armada38x.c
 
+ARM/Marvell PXA1908 SOC support
+M:	Duje Mihanović <duje@dujemihanovic.xyz>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	arch/arm64/boot/dts/marvell/mmp/
+F:	drivers/clk/mmp/clk-pxa1908*.c
+F:	include/dt-bindings/clock/marvell,pxa1908.h
+
 ARM/Mediatek RTC DRIVER
 M:	Eddie Huang <eddie.huang@mediatek.com>
 M:	Sean Wang <sean.wang@mediatek.com>

arch/arm64/Kconfig.platforms

@@ -178,6 +178,14 @@ config ARCH_MESON
 	  This enables support for the arm64 based Amlogic SoCs
 	  such as the s905, S905X/D, S912, A113X/D or S905X/D2
 
+config ARCH_MMP
+	bool "Marvell MMP SoC Family"
+	select PINCTRL
+	select PINCTRL_SINGLE
+	help
+	  This enables support for Marvell MMP SoC family, currently
+	  supporting PXA1908 aka IAP140.
+
 config ARCH_MVEBU
 	bool "Marvell EBU SoC Family"
 	select ARMADA_AP806_SYSCON

arch/arm64/boot/dts/marvell/Makefile

@@ -32,3 +32,5 @@ dtb-$(CONFIG_ARCH_MVEBU) += cn9130-cf-base.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += cn9130-cf-pro.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += cn9131-cf-solidwan.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += cn9132-clearfog.dtb
+
+subdir-y	+= mmp

arch/arm64/boot/dts/marvell/mmp/Makefile

@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+dtb-$(CONFIG_ARCH_MMP) += pxa1908-samsung-coreprimevelte.dtb