arm: add initial support for Amlogic Meson and ODROID-C2
This adds platform code for the Amlogic Meson GXBaby (S905) SoC and a
board definition for ODROID-C2. This initial submission only supports
UART and Ethernet (through the existing Designware driver). DTS files
are the ones submitted to Linux arm-soc for 4.7 [1].
[1] https://patchwork.ozlabs.org/patch/603583/
Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 5fd20b9..7e45642 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -456,6 +456,13 @@
select SUPPORT_SPL
select CMD_POWEROFF
+config ARCH_MESON
+ bool "Amlogic Meson"
+ help
+ Support for the Meson SoC family developed by Amlogic Inc.,
+ targeted at media players and tablet computers. We currently
+ support the S905 (GXBaby) 64-bit SoC.
+
config ARCH_MX7
bool "Freescale MX7"
select CPU_V7
@@ -792,6 +799,8 @@
source "arch/arm/cpu/armv7/rmobile/Kconfig"
+source "arch/arm/mach-meson/Kconfig"
+
source "arch/arm/mach-rockchip/Kconfig"
source "arch/arm/mach-s5pc1xx/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index d516345..ecd1887 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -50,6 +50,7 @@
machine-$(CONFIG_ARCH_KEYSTONE) += keystone
# TODO: rename CONFIG_KIRKWOOD -> CONFIG_ARCH_KIRKWOOD
machine-$(CONFIG_KIRKWOOD) += kirkwood
+machine-$(CONFIG_ARCH_MESON) += meson
machine-$(CONFIG_ARCH_MVEBU) += mvebu
# TODO: rename CONFIG_TEGRA -> CONFIG_ARCH_TEGRA
# TODO: rename CONFIG_ORION5X -> CONFIG_ARCH_ORION5X
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index bd68698..751bbd1 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -26,6 +26,8 @@
rk3288-jerry.dtb \
rk3288-rock2-square.dtb \
rk3036-sdk.dtb
+dtb-$(CONFIG_ARCH_MESON) += \
+ meson-gxbb-odroidc2.dtb
dtb-$(CONFIG_TEGRA) += tegra20-harmony.dtb \
tegra20-medcom-wide.dtb \
tegra20-paz00.dtb \
diff --git a/arch/arm/dts/meson-gxbb-odroidc2.dts b/arch/arm/dts/meson-gxbb-odroidc2.dts
new file mode 100644
index 0000000..653c2fa
--- /dev/null
+++ b/arch/arm/dts/meson-gxbb-odroidc2.dts
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2016 Andreas Färber
+ * Copyright (c) 2016 BayLibre, Inc.
+ * Author: Kevin Hilman <khilman@kernel.org>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/dts-v1/;
+
+#include "meson-gxbb.dtsi"
+
+/ {
+ compatible = "hardkernel,odroid-c2", "amlogic,meson-gxbb";
+ model = "Hardkernel ODROID-C2";
+
+ aliases {
+ serial0 = &uart_AO;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ memory@0 {
+ device_type = "memory";
+ reg = <0x0 0x0 0x0 0x80000000>;
+ };
+};
+
+&uart_AO {
+ status = "okay";
+};
diff --git a/arch/arm/dts/meson-gxbb.dtsi b/arch/arm/dts/meson-gxbb.dtsi
new file mode 100644
index 0000000..832815d
--- /dev/null
+++ b/arch/arm/dts/meson-gxbb.dtsi
@@ -0,0 +1,178 @@
+/*
+ * Copyright (c) 2016 Andreas Färber
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ * a) This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ * b) Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use,
+ * copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following
+ * conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ compatible = "amlogic,meson-gxbb";
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ cpus {
+ #address-cells = <0x2>;
+ #size-cells = <0x0>;
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x0>;
+ enable-method = "psci";
+ };
+
+ cpu1: cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x1>;
+ enable-method = "psci";
+ };
+
+ cpu2: cpu@2 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x2>;
+ enable-method = "psci";
+ };
+
+ cpu3: cpu@3 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a53", "arm,armv8";
+ reg = <0x0 0x3>;
+ enable-method = "psci";
+ };
+ };
+
+ arm-pmu {
+ compatible = "arm,cortex-a53-pmu";
+ interrupts = <GIC_SPI 137 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 138 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
+ };
+
+ psci {
+ compatible = "arm,psci-0.2";
+ method = "smc";
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13
+ (GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_EDGE_RISING)>,
+ <GIC_PPI 14
+ (GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_EDGE_RISING)>,
+ <GIC_PPI 11
+ (GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_EDGE_RISING)>,
+ <GIC_PPI 10
+ (GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_EDGE_RISING)>;
+ };
+
+ xtal: xtal-clk {
+ compatible = "fixed-clock";
+ clock-frequency = <24000000>;
+ clock-output-names = "xtal";
+ #clock-cells = <0>;
+ };
+
+ soc {
+ compatible = "simple-bus";
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ cbus: cbus@c1100000 {
+ compatible = "simple-bus";
+ reg = <0x0 0xc1100000 0x0 0x100000>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges = <0x0 0x0 0x0 0xc1100000 0x0 0x100000>;
+
+ uart_A: serial@84c0 {
+ compatible = "amlogic,meson-uart";
+ reg = <0x0 0x084c0 0x0 0x14>;
+ interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&xtal>;
+ status = "disabled";
+ };
+ };
+
+ gic: interrupt-controller@c4301000 {
+ compatible = "arm,gic-400";
+ reg = <0x0 0xc4301000 0 0x1000>,
+ <0x0 0xc4302000 0 0x2000>,
+ <0x0 0xc4304000 0 0x2000>,
+ <0x0 0xc4306000 0 0x2000>;
+ interrupt-controller;
+ interrupts = <GIC_PPI 9
+ (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_HIGH)>;
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ };
+
+ aobus: aobus@c8100000 {
+ compatible = "simple-bus";
+ reg = <0x0 0xc8100000 0x0 0x100000>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges = <0x0 0x0 0x0 0xc8100000 0x0 0x100000>;
+
+ uart_AO: serial@4c0 {
+ compatible = "amlogic,meson-uart";
+ reg = <0x0 0x004c0 0x0 0x14>;
+ interrupts = <GIC_SPI 193 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&xtal>;
+ status = "disabled";
+ };
+ };
+
+ apb: apb@d0000000 {
+ compatible = "simple-bus";
+ reg = <0x0 0xd0000000 0x0 0x200000>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges = <0x0 0x0 0x0 0xd0000000 0x0 0x200000>;
+ };
+ };
+};
diff --git a/arch/arm/include/asm/arch-meson/gxbb.h b/arch/arm/include/asm/arch-meson/gxbb.h
new file mode 100644
index 0000000..f90f632
--- /dev/null
+++ b/arch/arm/include/asm/arch-meson/gxbb.h
@@ -0,0 +1,52 @@
+/*
+ * (C) Copyright 2016 - Beniamino Galvani <b.galvani@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __GXBB_H__
+#define __GXBB_H__
+
+#define GXBB_PERIPHS_BASE 0xc8834400
+#define GXBB_HIU_BASE 0xc883c000
+#define GXBB_ETH_BASE 0xc9410000
+
+/* Peripherals registers */
+#define GXBB_PERIPHS_ADDR(off) (GXBB_PERIPHS_BASE + ((off) << 2))
+
+/* GPIO registers 0 to 6 */
+#define _GXBB_GPIO_OFF(n) ((n) == 6 ? 0x08 : 0x0c + 3 * (n))
+#define GXBB_GPIO_EN(n) GXBB_PERIPHS_ADDR(_GXBB_GPIO_OFF(n) + 0)
+#define GXBB_GPIO_IN(n) GXBB_PERIPHS_ADDR(_GXBB_GPIO_OFF(n) + 1)
+#define GXBB_GPIO_OUT(n) GXBB_PERIPHS_ADDR(_GXBB_GPIO_OFF(n) + 2)
+
+/* Pinmux registers 0 to 12 */
+#define GXBB_PINMUX(n) GXBB_PERIPHS_ADDR(0x2c + (n))
+
+#define GXBB_ETH_REG_0 GXBB_PERIPHS_ADDR(0x50)
+#define GXBB_ETH_REG_1 GXBB_PERIPHS_ADDR(0x51)
+
+#define GXBB_ETH_REG_0_PHY_INTF BIT(0)
+#define GXBB_ETH_REG_0_TX_PHASE(x) (((x) & 3) << 5)
+#define GXBB_ETH_REG_0_TX_RATIO(x) (((x) & 7) << 7)
+#define GXBB_ETH_REG_0_PHY_CLK_EN BIT(10)
+#define GXBB_ETH_REG_0_CLK_EN BIT(12)
+
+/* HIU registers */
+#define GXBB_HIU_ADDR(off) (GXBB_HIU_BASE + ((off) << 2))
+
+#define GXBB_MEM_PD_REG_0 GXBB_HIU_ADDR(0x40)
+
+/* Ethernet memory power domain */
+#define GXBB_MEM_PD_REG_0_ETH_MASK (BIT(2) | BIT(3))
+
+/* Clock gates */
+#define GXBB_GCLK_MPEG_0 GXBB_HIU_ADDR(0x50)
+#define GXBB_GCLK_MPEG_1 GXBB_HIU_ADDR(0x51)
+#define GXBB_GCLK_MPEG_2 GXBB_HIU_ADDR(0x52)
+#define GXBB_GCLK_MPEG_OTHER GXBB_HIU_ADDR(0x53)
+#define GXBB_GCLK_MPEG_AO GXBB_HIU_ADDR(0x54)
+
+#define GXBB_GCLK_MPEG_1_ETH BIT(3)
+
+#endif /* __GXBB_H__ */
diff --git a/arch/arm/mach-meson/Kconfig b/arch/arm/mach-meson/Kconfig
new file mode 100644
index 0000000..77d3cfe
--- /dev/null
+++ b/arch/arm/mach-meson/Kconfig
@@ -0,0 +1,31 @@
+if ARCH_MESON
+
+config MESON_GXBB
+ bool "Support Meson GXBaby"
+ select ARM64
+ select DM
+ select DM_SERIAL
+ help
+ The Amlogic Meson GXBaby (S905) is an ARM SoC with a
+ quad-core Cortex-A53 CPU and a Mali-450 GPU.
+
+if MESON_GXBB
+
+config TARGET_ODROID_C2
+ bool "ODROID-C2"
+ help
+ ODROID-C2 is a single board computer based on Meson GXBaby
+ with 2 GiB of RAM, Gigabit Ethernet, HDMI, 4 USB, micro-SD
+ slot, eMMC, IR receiver and a 40-pin GPIO header.
+
+endif
+
+config SYS_SOC
+ default "meson"
+
+config SYS_MALLOC_F_LEN
+ default 0x1000
+
+source "board/hardkernel/odroid-c2/Kconfig"
+
+endif
diff --git a/arch/arm/mach-meson/Makefile b/arch/arm/mach-meson/Makefile
new file mode 100644
index 0000000..44e3d63
--- /dev/null
+++ b/arch/arm/mach-meson/Makefile
@@ -0,0 +1,7 @@
+#
+# Copyright (c) 2016 Beniamino Galvani <b.galvani@gmail.com>
+#
+# SPDX-License-Identifier: GPL-2.0+
+#
+
+obj-y += board.o
diff --git a/arch/arm/mach-meson/board.c b/arch/arm/mach-meson/board.c
new file mode 100644
index 0000000..782f86c
--- /dev/null
+++ b/arch/arm/mach-meson/board.c
@@ -0,0 +1,66 @@
+/*
+ * (C) Copyright 2016 Beniamino Galvani <b.galvani@gmail.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <libfdt.h>
+#include <linux/err.h>
+#include <asm/arch/gxbb.h>
+#include <asm/armv8/mmu.h>
+#include <asm/unaligned.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int dram_init(void)
+{
+ const fdt64_t *val;
+ int offset;
+ int len;
+
+ offset = fdt_path_offset(gd->fdt_blob, "/memory");
+ if (offset < 0)
+ return -EINVAL;
+
+ val = fdt_getprop(gd->fdt_blob, offset, "reg", &len);
+ if (len < sizeof(*val) * 2)
+ return -EINVAL;
+
+ /* Use unaligned access since cache is still disabled */
+ gd->ram_size = get_unaligned_be64(&val[1]);
+
+ return 0;
+}
+
+void dram_init_banksize(void)
+{
+ /* Reserve first 16 MiB of RAM for firmware */
+ gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE + (16 * 1024 * 1024);
+ gd->bd->bi_dram[0].size = gd->ram_size - (16 * 1024 * 1024);
+}
+
+void reset_cpu(ulong addr)
+{
+ psci_system_reset(true);
+}
+
+static struct mm_region gxbb_mem_map[] = {
+ {
+ .base = 0x0UL,
+ .size = 0x80000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_NORMAL) |
+ PTE_BLOCK_INNER_SHARE
+ }, {
+ .base = 0x80000000UL,
+ .size = 0x80000000UL,
+ .attrs = PTE_BLOCK_MEMTYPE(MT_DEVICE_NGNRNE) |
+ PTE_BLOCK_NON_SHARE |
+ PTE_BLOCK_PXN | PTE_BLOCK_UXN
+ }, {
+ /* List terminator */
+ 0,
+ }
+};
+
+struct mm_region *mem_map = gxbb_mem_map;