arm: actions: Add common framework for Actions Owl Semi SoCs

This commit adds common arch support for Actions Semi Owl
series SoCs and removes the Bubblegum96 board files.

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Amit Singh Tomar <amittomer25@gmail.com>

MAINTAINERS

@@ -272,9 +272,10 @@ M:	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
 S:	Maintained
 F:	arch/arm/include/asm/arch-owl/
 F:	arch/arm/mach-owl/
-F:	board/ucRobotics/
 F:	drivers/clk/owl/
 F:	drivers/serial/serial_owl.c
+F:	include/configs/owl-common.h
+F:	configs/bubblegum_96_defconfig
 
 ARM RENESAS RMOBILE/R-CAR
 M:	Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

arch/arm/Kconfig

@@ -874,9 +874,9 @@ config ARCH_MX5
 
 config ARCH_OWL
 	bool "Actions Semi OWL SoCs"
-	select ARM64
 	select DM
 	select DM_SERIAL
+	select OWL_SERIAL
 	select OF_CONTROL
 	imply CMD_DM
 
@@ -1870,7 +1870,6 @@ source "board/spear/spear600/Kconfig"
 source "board/spear/x600/Kconfig"
 source "board/st/stv0991/Kconfig"
 source "board/tcl/sl50/Kconfig"
-source "board/ucRobotics/bubblegum_96/Kconfig"
 source "board/birdland/bav335x/Kconfig"
 source "board/toradex/colibri_pxa270/Kconfig"
 source "board/variscite/dart_6ul/Kconfig"

arch/arm/mach-owl/Kconfig

@@ -1,27 +1,22 @@
 if ARCH_OWL
 
-config SYS_SOC
-	default "owl"
-
 choice
-        prompt "Actions Semi OWL SoCs board select"
+        prompt "Actions Semi Owl SoC Variant"
         optional
 
-config TARGET_BUBBLEGUM_96
-	bool "96Boards Bubblegum-96"
-	help
-	  Support for 96Boards Bubblegum-96. This board complies with
-	  96Board Consumer Edition Specification. Features:
-	  - Actions Semi S900 SoC (4xCortex A53, Power VR G6230 GPU)
-	  - 2GiB RAM
-	  - 8GiB eMMC, uSD slot
-	  - WiFi, Bluetooth and GPS module
-	  - 2x Host, 1x Device USB port
-	  - HDMI
-	  - 20-pin low speed and 40-pin high speed expanders, 6 LED, 3 buttons
+config MACH_S900
+        bool "Actions Semi S900 SoC"
+        select ARM64
 
 endchoice
 
-source "board/ucRobotics/bubblegum_96/Kconfig"
+config SYS_TEXT_BASE
+        default 0x11000000
+
+config SYS_CONFIG_NAME
+        default "owl-common"
+
+config SYS_SOC
+        default "s900" if MACH_S900
 
 endif

arch/arm/mach-owl/Makefile

@@ -1,3 +1,4 @@
 # SPDX-License-Identifier:	GPL-2.0+
 
+obj-y += soc.o
 obj-y += sysmap-s900.o

arch/arm/mach-owl/soc.c

@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
- * Bubblegum-96 Boards Support
+ * Actions Semi Owl SoCs platform support.
  *
  * Copyright (C) 2018 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
  */
@@ -40,7 +40,7 @@ static void show_psci_version(void)
 	arm_smccc_smc(ARM_PSCI_0_2_FN_PSCI_VERSION, 0, 0, 0, 0, 0, 0, 0, &res);
 
 	printf("PSCI:  v%ld.%ld\n",
-	       PSCI_VERSION_MAJOR(res.a0),
+		PSCI_VERSION_MAJOR(res.a0),
 		PSCI_VERSION_MINOR(res.a0));
 }
 

board/ucRobotics/bubblegum_96/Kconfig

@@ -1,15 +0,0 @@
-if TARGET_BUBBLEGUM_96
-
-config SYS_BOARD
-	default "bubblegum_96"
-
-config SYS_VENDOR
-	default "ucRobotics"
-
-config SYS_SOC
-	default "s900"
-
-config SYS_CONFIG_NAME
-	default "bubblegum_96"
-
-endif

board/ucRobotics/bubblegum_96/MAINTAINERS

@@ -1,6 +0,0 @@
-BUBBLEGUM_96 BOARD
-M:	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
-S:	Maintained
-F:	board/ucRobotics/bubblegum_96/
-F:	include/configs/bubblegum_96.h
-F:	configs/bubblegum_96_defconfig

board/ucRobotics/bubblegum_96/Makefile

@@ -1,3 +0,0 @@
-# SPDX-License-Identifier:	GPL-2.0+
-
-obj-y   := bubblegum_96.o

configs/bubblegum_96_defconfig

@@ -1,9 +1,8 @@
 CONFIG_ARM=y
 CONFIG_ARCH_OWL=y
-CONFIG_SYS_TEXT_BASE=0x11000000
 CONFIG_ENV_SIZE=0x2000
-CONFIG_TARGET_BUBBLEGUM_96=y
 CONFIG_NR_DRAM_BANKS=1
+CONFIG_MACH_S900=y
 CONFIG_IDENT_STRING="\nBubblegum-96"
 CONFIG_DISTRO_DEFAULTS=y
 CONFIG_BOOTDELAY=5
@@ -21,4 +20,3 @@ CONFIG_SYS_RELOC_GD_ENV_ADDR=y
 CONFIG_CLK=y
 CONFIG_CLK_OWL=y
 CONFIG_CLK_S900=y
-CONFIG_OWL_SERIAL=y

include/configs/owl-common.h

@@ -1,14 +1,14 @@
 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
- * Board configuration file for Bubblegum-96
+ * Board configuration file for Actions Semi Owl SoCs.
  *
  * Copyright (C) 2015 Actions Semi Co., Ltd.
  * Copyright (C) 2018 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
  *
  */
 
-#ifndef _BUBBLEGUM_96_H_
-#define _BUGGLEGUM_96_H_
+#ifndef _OWL_COMMON_CONFIG_H_
+#define _OWL_COMMON_CONFIG_H_
 
 /* SDRAM Definitions */
 #define CONFIG_SYS_SDRAM_BASE		0x0