board: Add uCRobotics Bubblegum-96 board support

This commit adds uCRobotics Bubblegum-96 board support. This board is
one of the 96Boards Consumer Edition platform based on Actions Semi
S900 SoC.

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

U-Boot will be loaded by ATF at EL2 execution level. Relevant driver
support will be added in further commits.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 46882bd762a5418fd79ec30adefd7bdfaa3e5616..82140efb9984dd0af8af0ee89a09aca867f660d9 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1453,6 +1453,7 @@ 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/timll/devkit3250/Kconfig"
 source "board/toradex/colibri_pxa270/Kconfig"

diff --git a/arch/arm/dts/bubblegum_96.dts b/arch/arm/dts/bubblegum_96.dts
new file mode 100644 (file)
index 0000000..4e34eba
--- /dev/null
+++ b/arch/arm/dts/bubblegum_96.dts
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Device Tree Source for Bubblegum-96
+//
+// Copyright (C) 2015 Actions Semi Co., Ltd.
+// Copyright (C) 2018 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+/dts-v1/;
+#include "s900.dtsi"
+
+/ {
+       model = "Bubblegum-96";
+       compatible = "ucrobotics,bubblegum-96", "actions,s900";
+
+       memory@0 {
+               device_type = "memory";
+               reg = <0x0 0x0 0x0 0x80000000>;
+       };
+};

diff --git a/arch/arm/mach-owl/Kconfig b/arch/arm/mach-owl/Kconfig
index f695c16d1e48ee4c1131393febb311fabd6b3ae0..199e772988241cf99e9c88d467803c825e546c49 100644 (file)
--- a/arch/arm/mach-owl/Kconfig
+++ b/arch/arm/mach-owl/Kconfig
@@ -3,4 +3,25 @@ if ARCH_OWL
 config SYS_SOC
        default "owl"
 
+choice
+        prompt "Actions Semi OWL SoCs board select"
+        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
+
+endchoice
+
+source "board/ucRobotics/bubblegum_96/Kconfig"
+
 endif

diff --git a/board/ucRobotics/bubblegum_96/Kconfig b/board/ucRobotics/bubblegum_96/Kconfig
new file mode 100644 (file)
index 0000000..2dd40d9
--- /dev/null
+++ b/board/ucRobotics/bubblegum_96/Kconfig
@@ -0,0 +1,15 @@
+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

diff --git a/board/ucRobotics/bubblegum_96/MAINTAINERS b/board/ucRobotics/bubblegum_96/MAINTAINERS
new file mode 100644 (file)
index 0000000..d0cb727
--- /dev/null
+++ b/board/ucRobotics/bubblegum_96/MAINTAINERS
@@ -0,0 +1,6 @@
+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

diff --git a/board/ucRobotics/bubblegum_96/Makefile b/board/ucRobotics/bubblegum_96/Makefile
new file mode 100644 (file)
index 0000000..c4b524d
--- /dev/null
+++ b/board/ucRobotics/bubblegum_96/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier:     GPL-2.0+
+
+obj-y   := bubblegum_96.o

diff --git a/board/ucRobotics/bubblegum_96/bubblegum_96.c b/board/ucRobotics/bubblegum_96/bubblegum_96.c
new file mode 100644 (file)
index 0000000..a4c202d
--- /dev/null
+++ b/board/ucRobotics/bubblegum_96/bubblegum_96.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Bubblegum-96 Boards Support
+ *
+ * Copyright (C) 2018 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+ */
+
+#include <linux/arm-smccc.h>
+#include <linux/psci.h>
+#include <common.h>
+#include <asm/io.h>
+#include <asm/mach-types.h>
+#include <asm/psci.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * dram_init - sets uboots idea of sdram size
+ */
+int dram_init(void)
+{
+       gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
+       return 0;
+}
+
+/* This is called after dram_init() so use get_ram_size result */
+int dram_init_banksize(void)
+{
+       gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
+       gd->bd->bi_dram[0].size = gd->ram_size;
+
+       return 0;
+}
+
+static void show_psci_version(void)
+{
+       struct arm_smccc_res res;
+
+       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_MINOR(res.a0));
+}
+
+int board_init(void)
+{
+       show_psci_version();
+
+       return 0;
+}
+
+void reset_cpu(ulong addr)
+{
+       psci_system_reset();
+}

diff --git a/configs/bubblegum_96_defconfig b/configs/bubblegum_96_defconfig
new file mode 100644 (file)
index 0000000..a2bd7e8
--- /dev/null
+++ b/configs/bubblegum_96_defconfig
@@ -0,0 +1,22 @@
+CONFIG_ARM=y
+CONFIG_ARCH_OWL=y
+CONFIG_TARGET_BUBBLEGUM_96=y
+CONFIG_SYS_TEXT_BASE=0x11000000
+CONFIG_IDENT_STRING="\nBubblegum-96"
+CONFIG_DEFAULT_DEVICE_TREE="bubblegum_96"
+CONFIG_DISTRO_DEFAULTS=y
+CONFIG_USE_BOOTARGS=y
+CONFIG_ARM_SMCCC=y
+CONFIG_BOOTARGS="console=ttyOWL5,115200n8"
+CONFIG_BOOTDELAY=5
+CONFIG_SYS_PROMPT="U-Boot => "
+# CONFIG_DISPLAY_CPUINFO is not set
+# CONFIG_DISPLAY_BOARDINFO is not set
+CONFIG_CMD_MD5SUM=y
+CONFIG_CMD_MEMINFO=y
+CONFIG_CMD_CACHE=y
+CONFIG_CMD_TIMER=y
+CONFIG_CLK=y
+CONFIG_CLK_OWL=y
+CONFIG_CLK_S900=y
+CONFIG_OWL_SERIAL=y

diff --git a/include/configs/bubblegum_96.h b/include/configs/bubblegum_96.h
new file mode 100644 (file)
index 0000000..a8f38a2
--- /dev/null
+++ b/include/configs/bubblegum_96.h
@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Board configuration file for Bubblegum-96
+ *
+ * Copyright (C) 2015 Actions Semi Co., Ltd.
+ * Copyright (C) 2018 Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+ *
+ */
+
+#ifndef _BUBBLEGUM_96_H_
+#define _BUGGLEGUM_96_H_
+
+/* SDRAM Definitions */
+#define CONFIG_SYS_SDRAM_BASE          0x0
+#define CONFIG_NR_DRAM_BANKS           1
+#define CONFIG_SYS_SDRAM_SIZE          0x80000000
+
+/* Generic Timer Definitions */
+#define COUNTER_FREQUENCY              (24000000)      /* 24MHz */
+
+#define CONFIG_SYS_MALLOC_LEN          (32 * 1024 * 1024)
+
+/* Some commands use this as the default load address */
+#define CONFIG_SYS_LOAD_ADDR           (CONFIG_SYS_SDRAM_BASE + 0x7ffc0)
+
+/*
+ * This is the initial SP which is used only briefly for relocating the u-boot
+ * image to the top of SDRAM. After relocation u-boot moves the stack to the
+ * proper place.
+ */
+#define CONFIG_SYS_INIT_SP_ADDR                (CONFIG_SYS_TEXT_BASE + 0x7ff00)
+
+/* UART Definitions */
+#define CONFIG_BAUDRATE                        115200
+
+#define CONFIG_ENV_SIZE                        0x2000
+
+/* Console configuration */
+#define CONFIG_SYS_CBSIZE              1024    /* Console buffer size */
+#define CONFIG_SYS_MAXARGS             64
+#define CONFIG_SYS_BARGSIZE            CONFIG_SYS_CBSIZE
+
+#endif