Add a psci_system_reset() which calls the SYSTEM_RESET function of PSCI 0.2 and can be used by boards that support it to implement reset_cpu().

Signed-off-by: Beniamino Galvani b.galvani@gmail.com --- arch/arm/cpu/armv8/fwcall.c | 16 ++++++++++++++++ arch/arm/include/asm/psci.h | 17 ++++++++++++++++- arch/arm/include/asm/system.h | 2 ++ 3 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/arm/cpu/armv8/fwcall.c b/arch/arm/cpu/armv8/fwcall.c index 9efcc5a..079e250 100644 --- a/arch/arm/cpu/armv8/fwcall.c +++ b/arch/arm/cpu/armv8/fwcall.c @@ -8,6 +8,7 @@ #include <config.h> #include <version.h> #include <asm/macro.h> +#include <asm/psci.h> #include <asm/system.h>

/* @@ -73,3 +74,18 @@ void smc_call(struct pt_regs *args) "x8", "x9", "x10", "x11", "x12", "x13", "x14", "x15", "x16", "x17"); } + +void __noreturn psci_system_reset(bool conduit_smc) +{ + struct pt_regs regs; + + regs.regs[0] = ARM_PSCI_0_2_FN_SYSTEM_RESET; + + if (conduit_smc) + smc_call(&regs); + else + hvc_call(&regs); + + while (1) + ; +} diff --git a/arch/arm/include/asm/psci.h b/arch/arm/include/asm/psci.h index 128a606..3704f07 100644 --- a/arch/arm/include/asm/psci.h +++ b/arch/arm/include/asm/psci.h @@ -18,7 +18,7 @@ #ifndef __ARM_PSCI_H__ #define __ARM_PSCI_H__

-/* PSCI interface */ +/* PSCI 0.1 interface */ #define ARM_PSCI_FN_BASE 0x95c1ba5e #define ARM_PSCI_FN(n) (ARM_PSCI_FN_BASE + (n))

@@ -32,6 +32,21 @@ #define ARM_PSCI_RET_INVAL (-2) #define ARM_PSCI_RET_DENIED (-3)

+/* PSCI 0.2 interface */ +#define ARM_PSCI_0_2_FN_BASE 0x84000000 +#define ARM_PSCI_0_2_FN(n) (ARM_PSCI_0_2_FN_BASE + (n)) + +#define ARM_PSCI_0_2_FN_PSCI_VERSION ARM_PSCI_0_2_FN(0) +#define ARM_PSCI_0_2_FN_CPU_SUSPEND ARM_PSCI_0_2_FN(1) +#define ARM_PSCI_0_2_FN_CPU_OFF ARM_PSCI_0_2_FN(2) +#define ARM_PSCI_0_2_FN_CPU_ON ARM_PSCI_0_2_FN(3) +#define ARM_PSCI_0_2_FN_AFFINITY_INFO ARM_PSCI_0_2_FN(4) +#define ARM_PSCI_0_2_FN_MIGRATE ARM_PSCI_0_2_FN(5) +#define ARM_PSCI_0_2_FN_MIGRATE_INFO_TYPE ARM_PSCI_0_2_FN(6) +#define ARM_PSCI_0_2_FN_MIGRATE_INFO_UP_CPU ARM_PSCI_0_2_FN(7) +#define ARM_PSCI_0_2_FN_SYSTEM_OFF ARM_PSCI_0_2_FN(8) +#define ARM_PSCI_0_2_FN_SYSTEM_RESET ARM_PSCI_0_2_FN(9) + #ifndef __ASSEMBLY__ int psci_update_dt(void *fdt); void psci_board_init(void); diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index 9ae890a..2bdc0be 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -128,6 +128,8 @@ void hvc_call(struct pt_regs *args); */ void smc_call(struct pt_regs *args);

+void __noreturn psci_system_reset(bool smc); + #endif /* __ASSEMBLY__ */

#else /* CONFIG_ARM64 */

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 --- arch/arm/Kconfig | 5 + arch/arm/Makefile | 1 + arch/arm/dts/Makefile | 2 + arch/arm/dts/meson-gxbb-odroidc2.dts | 69 +++++++++++++ arch/arm/dts/meson-gxbb.dtsi | 178 +++++++++++++++++++++++++++++++++ arch/arm/include/asm/arch-meson/gxbb.h | 52 ++++++++++ arch/arm/mach-meson/Kconfig | 31 ++++++ arch/arm/mach-meson/Makefile | 7 ++ arch/arm/mach-meson/board.c | 66 ++++++++++++ board/hardkernel/odroid-c2/Kconfig | 12 +++ board/hardkernel/odroid-c2/MAINTAINERS | 6 ++ board/hardkernel/odroid-c2/Makefile | 7 ++ board/hardkernel/odroid-c2/README | 60 +++++++++++ board/hardkernel/odroid-c2/odroid-c2.c | 51 ++++++++++ configs/odroid-c2_defconfig | 23 +++++ drivers/serial/Kconfig | 15 +++ drivers/serial/Makefile | 1 + drivers/serial/serial_meson.c | 162 ++++++++++++++++++++++++++++++ include/configs/odroid-c2.h | 51 ++++++++++ 19 files changed, 799 insertions(+) create mode 100644 arch/arm/dts/meson-gxbb-odroidc2.dts create mode 100644 arch/arm/dts/meson-gxbb.dtsi create mode 100644 arch/arm/include/asm/arch-meson/gxbb.h create mode 100644 arch/arm/mach-meson/Kconfig create mode 100644 arch/arm/mach-meson/Makefile create mode 100644 arch/arm/mach-meson/board.c create mode 100644 board/hardkernel/odroid-c2/Kconfig create mode 100644 board/hardkernel/odroid-c2/MAINTAINERS create mode 100644 board/hardkernel/odroid-c2/Makefile create mode 100644 board/hardkernel/odroid-c2/README create mode 100644 board/hardkernel/odroid-c2/odroid-c2.c create mode 100644 configs/odroid-c2_defconfig create mode 100644 drivers/serial/serial_meson.c create mode 100644 include/configs/odroid-c2.h

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 6b65d8e..6252f5a 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -456,6 +456,9 @@ config ARCH_KEYSTONE select SUPPORT_SPL select CMD_POWEROFF

+config ARCH_MESON + bool "Amlogic Meson" + config ARCH_MX7 bool "Freescale MX7" select CPU_V7 @@ -781,6 +784,8 @@ source "arch/arm/mach-orion5x/Kconfig"

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-$(CONFIG_ARCH_HIGHBANK) += highbank machine-$(CONFIG_ARCH_KEYSTONE) += keystone # TODO: rename CONFIG_KIRKWOOD -> CONFIG_ARCH_KIRKWOOD machine-$(CONFIG_KIRKWOOD) += kirkwood +machine-$(CONFIG_ARCH_MESON) += meson machine-$(CONFIG_ARCH_MVEBU) += mvebu # TODO: rename CONFIG_TEGRA -> CONFIG_ARCH_TEGRA # TODO: rename CONFIG_ORION5X -> CONFIG_ARCH_ORION5X diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index d1f8e22..136a7d8 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -26,6 +26,8 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += \ 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; diff --git a/board/hardkernel/odroid-c2/Kconfig b/board/hardkernel/odroid-c2/Kconfig new file mode 100644 index 0000000..687d9c6 --- /dev/null +++ b/board/hardkernel/odroid-c2/Kconfig @@ -0,0 +1,12 @@ +if TARGET_ODROID_C2 + +config SYS_BOARD + default "odroid-c2" + +config SYS_VENDOR + default "hardkernel" + +config SYS_CONFIG_NAME + default "odroid-c2" + +endif diff --git a/board/hardkernel/odroid-c2/MAINTAINERS b/board/hardkernel/odroid-c2/MAINTAINERS new file mode 100644 index 0000000..23ae1e7 --- /dev/null +++ b/board/hardkernel/odroid-c2/MAINTAINERS @@ -0,0 +1,6 @@ +ODROID-C2 +M: Beniamino Galvani b.galvani@gmail.com +S: Maintained +F: board/hardkernel/odroid-c2/ +F: include/configs/odroid-c2.h +F: configs/odroid-c2_defconfig diff --git a/board/hardkernel/odroid-c2/Makefile b/board/hardkernel/odroid-c2/Makefile new file mode 100644 index 0000000..571044b --- /dev/null +++ b/board/hardkernel/odroid-c2/Makefile @@ -0,0 +1,7 @@ +# +# (C) Copyright 2016 Beniamino Galvani b.galvani@gmail.com +# +# SPDX-License-Identifier: GPL-2.0+ +# + +obj-y := odroid-c2.o diff --git a/board/hardkernel/odroid-c2/README b/board/hardkernel/odroid-c2/README new file mode 100644 index 0000000..d6d266a --- /dev/null +++ b/board/hardkernel/odroid-c2/README @@ -0,0 +1,60 @@ +U-Boot for ODROID-C2 +==================== + +ODROID-C2 is a single board computer manufactured by Hardkernel +Co. Ltd with the following specifications: + + - Amlogic S905 ARM Cortex-A53 quad-core SoC @ 2GHz + - ARM Mali 450 GPU + - 2GB DDR3 SDRAM + - Gigabit Ethernet + - HDMI 2.0 4K/60Hz display + - 40-pin GPIO header + - 4 x USB 2.0 Host, 1 x USB OTG + - eMMC, microSD + - Infrared receiver + +Schematics are available on the manufacturer website. + +Currently the u-boot port supports the following devices: + - serial + - Ethernet + +u-boot compilation +================== + + > export ARCH=arm + > export CROSS_COMPILE=aarch64-none-elf- + > make odroid-c2_defconfig + > make + +Image creation +============== + +Amlogic doesn't provide sources for the firmware and for tools needed +to create the bootloader image, so it is necessary to obtain them from +the git tree published by the board vendor: + + > DIR=odroid-c2 + > git clone --depth 1 \ + https://github.com/hardkernel/u-boot.git -b odroidc2-v2015.01 \ + $DIR + > $DIR/fip/fip_create --bl30 $DIR/fip/gxb/bl30.bin \ + --bl301 $DIR/fip/gxb/bl301.bin \ + --bl31 $DIR/fip/gxb/bl31.bin \ + --bl33 u-boot.bin \ + $DIR/fip.bin + > $DIR/fip/fip_create --dump $DIR/fip.bin + > cat $DIR/fip/gxb/bl2.package $DIR/fip.bin > $DIR/boot_new.bin + > $DIR/fip/gxb/aml_encrypt_gxb --bootsig \ + --input $DIR/boot_new.bin \ + --output $DIR/u-boot.img + > dd if=$DIR/u-boot.img of=$DIR/u-boot.gxbb bs=512 skip=96 + +and then write the image to SD with: + + > DEV=/dev/your_sd_device + > BL1=$DIR/sd_fuse/bl1.bin.hardkernel + > dd if=$BL1 of=$DEV conv=fsync bs=1 count=442 + > dd if=$BL1 of=$DEV conv=fsync bs=512 skip=1 seek=1 + > dd if=$DIR/u-boot.gxbb of=$DEV conv=fsync bs=512 seek=97 diff --git a/board/hardkernel/odroid-c2/odroid-c2.c b/board/hardkernel/odroid-c2/odroid-c2.c new file mode 100644 index 0000000..c258d4f --- /dev/null +++ b/board/hardkernel/odroid-c2/odroid-c2.c @@ -0,0 +1,51 @@ +/* + * (C) Copyright 2016 Beniamino Galvani b.galvani@gmail.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <asm/io.h> +#include <asm/arch/gxbb.h> +#include <dm/platdata.h> +#include <phy.h> + +int board_init(void) +{ + return 0; +} + +static const struct eth_pdata gxbb_eth_pdata = { + .iobase = GXBB_ETH_BASE, + .phy_interface = PHY_INTERFACE_MODE_RGMII, +}; + +U_BOOT_DEVICE(meson_eth) = { + .name = "eth_designware", + .platdata = &gxbb_eth_pdata, +}; + +int misc_init_r(void) +{ + /* Select Ethernet function */ + setbits_le32(GXBB_PINMUX(6), 0x3fff); + + /* Set RGMII mode */ + setbits_le32(GXBB_ETH_REG_0, GXBB_ETH_REG_0_PHY_INTF | + GXBB_ETH_REG_0_TX_PHASE(1) | + GXBB_ETH_REG_0_TX_RATIO(4) | + GXBB_ETH_REG_0_PHY_CLK_EN | + GXBB_ETH_REG_0_CLK_EN); + + /* Enable power and clock gate */ + setbits_le32(GXBB_GCLK_MPEG_1, GXBB_GCLK_MPEG_1_ETH); + clrbits_le32(GXBB_MEM_PD_REG_0, GXBB_MEM_PD_REG_0_ETH_MASK); + + /* Reset PHY on GPIOZ_14 */ + clrbits_le32(GXBB_GPIO_EN(3), BIT(14)); + clrbits_le32(GXBB_GPIO_OUT(3), BIT(14)); + mdelay(10); + setbits_le32(GXBB_GPIO_OUT(3), BIT(14)); + + return 0; +} diff --git a/configs/odroid-c2_defconfig b/configs/odroid-c2_defconfig new file mode 100644 index 0000000..a771b20 --- /dev/null +++ b/configs/odroid-c2_defconfig @@ -0,0 +1,23 @@ +CONFIG_ARM=y +CONFIG_ARCH_MESON=y +CONFIG_MESON_GXBB=y +CONFIG_TARGET_ODROID_C2=y +CONFIG_DEFAULT_DEVICE_TREE="meson-gxbb-odroidc2" +# CONFIG_CMD_BDI is not set +# CONFIG_CMD_IMI is not set +# CONFIG_CMD_IMLS is not set +# CONFIG_CMD_LOADS is not set +# CONFIG_CMD_FPGA is not set +# CONFIG_CMD_SOURCE is not set +# CONFIG_CMD_SETEXPR is not set +CONFIG_OF_CONTROL=y +CONFIG_NET_RANDOM_ETHADDR=y +CONFIG_DM_ETH=y +CONFIG_ETH_DESIGNWARE=y +CONFIG_DEBUG_UART=y +CONFIG_DEBUG_UART_MESON=y +CONFIG_DEBUG_UART_BASE=0xc81004c0 +CONFIG_DEBUG_UART_CLOCK=24000000 +CONFIG_DEBUG_UART_ANNOUNCE=y +CONFIG_DEBUG_UART_SKIP_INIT=y +CONFIG_MESON_SERIAL=y diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index a9a5d47..7720b3e 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -112,6 +112,14 @@ config DEBUG_UART_S5P will need to provide parameters to make this work. The driver will be available until the real driver-model serial is running.

+config DEBUG_UART_MESON + bool "Amlogic Meson" + depends on MESON_SERIAL + help + Select this to enable a debug UART using the serial_meson driver. You + will need to provide parameters to make this work. The driver will + be available until the real driver-model serial is running. + config DEBUG_UART_UARTLITE bool "Xilinx Uartlite" help @@ -320,6 +328,13 @@ config XILINX_UARTLITE If you have a Xilinx based board and want to use the uartlite serial ports, say Y to this option. If unsure, say N.

+config MESON_SERIAL + bool "Support for Amlogic Meson UART" + depends on DM_SERIAL && ARCH_MESON + help + If you have an Amlogic Meson based board and want to use the on-chip + serial ports, say Y to this option. If unsure, say N. + config MSM_SERIAL bool "Qualcomm on-chip UART" depends on DM_SERIAL diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile index b0ac9d8..35c143d 100644 --- a/drivers/serial/Makefile +++ b/drivers/serial/Makefile @@ -26,6 +26,7 @@ obj-$(CONFIG_SYS_NS16550) += ns16550.o obj-$(CONFIG_S5P) += serial_s5p.o obj-$(CONFIG_MXC_UART) += serial_mxc.o obj-$(CONFIG_PXA_SERIAL) += serial_pxa.o +obj-$(CONFIG_MESON_SERIAL) += serial_meson.o obj-$(CONFIG_S3C24X0_SERIAL) += serial_s3c24x0.o obj-$(CONFIG_XILINX_UARTLITE) += serial_xuartlite.o obj-$(CONFIG_SANDBOX_SERIAL) += sandbox.o diff --git a/drivers/serial/serial_meson.c b/drivers/serial/serial_meson.c new file mode 100644 index 0000000..1b49426 --- /dev/null +++ b/drivers/serial/serial_meson.c @@ -0,0 +1,162 @@ +/* + * (C) Copyright 2016 Beniamino Galvani b.galvani@gmail.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <dm.h> +#include <errno.h> +#include <fdtdec.h> +#include <linux/compiler.h> +#include <serial.h> + +DECLARE_GLOBAL_DATA_PTR; + +struct meson_uart { + u32 wfifo; + u32 rfifo; + u32 control; + u32 status; + u32 misc; +}; + +struct meson_serial_platdata { + struct meson_uart *reg; +}; + +/* AML_UART_STATUS bits */ +#define AML_UART_PARITY_ERR BIT(16) +#define AML_UART_FRAME_ERR BIT(17) +#define AML_UART_TX_FIFO_WERR BIT(18) +#define AML_UART_RX_EMPTY BIT(20) +#define AML_UART_TX_FULL BIT(21) +#define AML_UART_TX_EMPTY BIT(22) +#define AML_UART_XMIT_BUSY BIT(25) +#define AML_UART_ERR (AML_UART_PARITY_ERR | \ + AML_UART_FRAME_ERR | \ + AML_UART_TX_FIFO_WERR) + +/* AML_UART_CONTROL bits */ +#define AML_UART_TX_EN BIT(12) +#define AML_UART_RX_EN BIT(13) +#define AML_UART_TX_RST BIT(22) +#define AML_UART_RX_RST BIT(23) +#define AML_UART_CLR_ERR BIT(24) + +static void meson_serial_init(struct meson_uart *uart) +{ + u32 val; + + val = readl(&uart->control); + val |= (AML_UART_RX_RST | AML_UART_TX_RST | AML_UART_CLR_ERR); + writel(val, &uart->control); + val &= ~(AML_UART_RX_RST | AML_UART_TX_RST | AML_UART_CLR_ERR); + writel(val, &uart->control); + val |= (AML_UART_RX_EN | AML_UART_TX_EN); + writel(val, &uart->control); +} + +static int meson_serial_probe(struct udevice *dev) +{ + struct meson_serial_platdata *plat = dev->platdata; + struct meson_uart *const uart = plat->reg; + + meson_serial_init(uart); + + return 0; +} + +static int meson_serial_getc(struct udevice *dev) +{ + struct meson_serial_platdata *plat = dev->platdata; + struct meson_uart *const uart = plat->reg; + + if (readl(&uart->status) & AML_UART_RX_EMPTY) + return -EAGAIN; + + return readl(&uart->rfifo) & 0xff; +} + +static int meson_serial_putc(struct udevice *dev, const char ch) +{ + struct meson_serial_platdata *plat = dev->platdata; + struct meson_uart *const uart = plat->reg; + + if (readl(&uart->status) & AML_UART_TX_FULL) + return -EAGAIN; + + writel(ch, &uart->wfifo); + + return 0; +} + +static int meson_serial_pending(struct udevice *dev, bool input) +{ + struct meson_serial_platdata *plat = dev->platdata; + struct meson_uart *const uart = plat->reg; + uint32_t status = readl(&uart->status); + + if (input) + return !(status & AML_UART_RX_EMPTY); + else + return !(status & AML_UART_TX_FULL); +} + +static int meson_serial_ofdata_to_platdata(struct udevice *dev) +{ + struct meson_serial_platdata *plat = dev->platdata; + fdt_addr_t addr; + + addr = dev_get_addr(dev); + if (addr == FDT_ADDR_T_NONE) + return -EINVAL; + + plat->reg = (struct meson_uart *)addr; + + return 0; +} + +static const struct dm_serial_ops meson_serial_ops = { + .putc = meson_serial_putc, + .pending = meson_serial_pending, + .getc = meson_serial_getc, +}; + +static const struct udevice_id meson_serial_ids[] = { + { .compatible = "amlogic,meson-uart" }, + { } +}; + +U_BOOT_DRIVER(serial_meson) = { + .name = "serial_meson", + .id = UCLASS_SERIAL, + .of_match = meson_serial_ids, + .probe = meson_serial_probe, + .ops = &meson_serial_ops, + .flags = DM_FLAG_PRE_RELOC, + .ofdata_to_platdata = meson_serial_ofdata_to_platdata, + .platdata_auto_alloc_size = sizeof(struct meson_serial_platdata), +}; + +#ifdef CONFIG_DEBUG_UART_MESON + +#include <debug_uart.h> + +static inline void _debug_uart_init(void) +{ +} + +static inline void _debug_uart_putc(int ch) +{ + struct meson_uart *regs = (struct meson_uart *)CONFIG_DEBUG_UART_BASE; + + while (readl(&regs->status) & AML_UART_TX_FULL) + ; + + writel(ch, &regs->wfifo); +} + +DEBUG_UART_FUNCS + +#endif diff --git a/include/configs/odroid-c2.h b/include/configs/odroid-c2.h new file mode 100644 index 0000000..37a5671 --- /dev/null +++ b/include/configs/odroid-c2.h @@ -0,0 +1,51 @@ +/* + * Configuration for ODROID-C2 + * (C) Copyright 2016 Beniamino Galvani b.galvani@gmail.com + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __CONFIG_H +#define __CONFIG_H + +#define CONFIG_CPU_ARMV8 +#define CONFIG_REMAKE_ELF +#define CONFIG_SYS_CACHELINE_SIZE 64 +#define CONFIG_SYS_NO_FLASH +#define CONFIG_NR_DRAM_BANKS 1 +#define CONFIG_ENV_IS_NOWHERE 1 +#define CONFIG_ENV_SIZE 0x2000 +#define CONFIG_SYS_MAXARGS 32 +#define CONFIG_SYS_MALLOC_LEN (32 << 20) +#define CONFIG_SYS_CBSIZE 1024 +#define CONFIG_MISC_INIT_R + +#define CONFIG_SYS_SDRAM_BASE 0 +#define CONFIG_SYS_TEXT_BASE 0x01000000 +#define CONFIG_SYS_INIT_SP_ADDR 0x20000000 +#define CONFIG_SYS_LOAD_ADDR CONFIG_SYS_TEXT_BASE + +/* Generic Interrupt Controller Definitions */ +#define GICD_BASE 0xc4301000 +#define GICC_BASE 0xc4302000 + +#define CONFIG_IDENT_STRING " odroid-c2" + +/* Serial setup */ +#define CONFIG_CONS_INDEX 0 +#define CONFIG_BAUDRATE 115200 + +#define CONFIG_CMD_ENV + +/* Monitor Command Prompt */ +/* Console I/O Buffer Size */ +#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \ + sizeof(CONFIG_SYS_PROMPT) + 16) +#define CONFIG_SYS_HUSH_PARSER +#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE +#define CONFIG_SYS_LONGHELP +#define CONFIG_CMDLINE_EDITING + +#include <config_distro_defaults.h> + +#endif /* __CONFIG_H */